技术领域technical field
本发明提供了一种包括顶片/采集层层合体的吸收制品。具体地，本发明提供了一种包括顶片/采集层层合体、干法成网纤维结构和任选的载体层的吸收制品。The present invention provides an absorbent article comprising a topsheet/acquisition layer laminate. Specifically, the present invention provides an absorbent article comprising a topsheet/acquisition layer laminate, a dry-laid fibrous structure, and optionally a carrier layer.
背景技术Background technique
吸收制品通常包括顶片、底片、和设置在顶片和底片之间的吸收芯。吸收制品包括采集层和任选地分配层。采集层能够从顶片接收液体身体流出物，以便暂时存储它们。然后，分配层可从采集层接收液体身体流出物并且将它们分配并转移至吸收芯以便有效地利用吸收芯。此类吸收制品表现出令人满意的流体处理特性。Absorbent articles generally comprise a topsheet, a backsheet, and an absorbent core disposed between the topsheet and the backsheet. Absorbent articles comprise an acquisition layer and optionally a distribution layer. The acquisition layer is capable of receiving liquid bodily exudates from the topsheet for temporary storage thereof. The distribution layer can then receive liquid bodily exudates from the acquisition layer and distribute and transfer them to the absorbent core for efficient utilization of the absorbent core. Such absorbent articles exhibit satisfactory fluid handling characteristics.
已开发出了三维顶片；参见例如美国专利申请US 2014/0121625 A1。Three-dimensional topsheets have been developed; see for example US patent application US 2014/0121625 A1.
仍然需要进一步改进三维顶片。There remains a need for further improvements in three-dimensional topsheets.
需要开发出一种包括具有用于吸收制品的三维结构的面向皮肤层的吸收制品，该面向皮肤层提供改善的流体处理特性例如面向皮肤层上的较少的回渗，同时仍然满足穿着者的身体舒适度和感知舒适度。There is a need to develop an absorbent article comprising a skin-facing layer with a three-dimensional structure for an absorbent article that provides improved fluid handling characteristics such as less rewet on the skin-facing layer while still meeting the wearer's requirements. Physical comfort and perceived comfort.
还需要提供具有三维结构的面向皮肤层，以便减少液体身体流出物与穿着者的皮肤的接触。还期望面向皮肤层为看护者和穿着者提供柔软感/松软感。There is also a need to provide a skin-facing layer with a three-dimensional structure in order to reduce contact of liquid bodily exudates with the wearer's skin. It is also desirable that the skin-facing layer provide a soft/fluffy feel to the caregiver and wearer.
发明内容Contents of the invention
本发明提供了一种用于个人卫生的吸收制品，该吸收制品包括横向轴线、垂直于横向轴线的纵向轴线、液体可透过的顶片和采集层。该采集层在平行于横向轴线的方向上的宽度小于该顶片在平行于横向轴线的方向上的宽度。该吸收制品包括顶片/采集层层合体，其中液体可透过的顶片和采集层成面对面关系。该顶片和采集层包括纤维。该顶片/采集层层合体包括从顶片/采集层层合体的平面延伸的三维突出部。该顶片和该采集层被嵌套在一起，使得被形成在顶片中的大多数三维突出部与被形成在采集层中的大多数三维突出部重合并贴合在一起，以提供具有三维突出部的顶片/采集层层合体。顶片/采集层层合体具有包括采集层的第一表面；该吸收制品包括液体不可透过的底片，该液体不可透过的底片被定位成使得顶片/采集层层合体的第一表面面朝底片。The present invention provides an absorbent article for personal hygiene comprising a transverse axis, a longitudinal axis perpendicular to the transverse axis, a liquid permeable topsheet and an acquisition layer. The width of the acquisition layer in a direction parallel to the transverse axis is smaller than the width of the topsheet in a direction parallel to the transverse axis. The absorbent article comprises a topsheet/acquisition layer laminate wherein the liquid permeable topsheet and the acquisition layer are in face-to-face relationship. The topsheet and acquisition layer comprise fibers. The topsheet/acquisition layer laminate includes three-dimensional protrusions extending from the plane of the topsheet/acquisition layer laminate. The topsheet and the acquisition layer are nested together such that most of the three-dimensional projections formed in the topsheet coincide and fit together with most of the three-dimensional projections formed in the acquisition layer to provide a three-dimensional Topsheet/acquisition layer laminate of the lobe. The topsheet/acquisition layer laminate has a first surface comprising the acquisition layer; the absorbent article comprises a liquid impermeable backsheet positioned such that the first surface of the topsheet/acquisition layer laminate towards the negative.
该吸收制品可包括位于顶片/采集层层合体和底片之间的干法成网纤维结构或湿法成网纤维结构。The absorbent article may comprise a dry-laid fibrous structure or a wet-laid fibrous structure positioned between the topsheet/acquisition layer laminate and the backsheet.
本发明提供了一种用于个人卫生的吸收制品，该吸收制品包括横向轴线、垂直于横向轴线的纵向轴线、液体可透过的顶片和采集层。该采集层在平行于横向轴线的方向上的宽度小于该顶片在平行于横向轴线的方向上的宽度。该吸收制品包括顶片/采集层层合体，其中液体可透过的顶片和采集层成面对面关系。该顶片和采集层包括纤维。该顶片/采集层层合体包括从顶片/采集层层合体的平面延伸的三维突出部。该顶片和该采集层被嵌套在一起，使得被形成在顶片中的大多数三维突出部与被形成在采集层中的大多数三维突出部重合并贴合在一起，以提供具有三维突出部的顶片/采集层层合体。该顶片/采集层层合体具有包括采集层的第一表面。该吸收制品包括干法成网纤维结构、液体不可透过的底片和具有第一表面和第二表面的载体层。该干法成网纤维结构被定位在载体层的第一表面上，使得载体层的第二表面面朝底片或顶片/采集层层合体的第一表面。The present invention provides an absorbent article for personal hygiene comprising a transverse axis, a longitudinal axis perpendicular to the transverse axis, a liquid permeable topsheet and an acquisition layer. The width of the acquisition layer in a direction parallel to the transverse axis is smaller than the width of the topsheet in a direction parallel to the transverse axis. The absorbent article comprises a topsheet/acquisition layer laminate wherein the liquid permeable topsheet and the acquisition layer are in face-to-face relationship. The topsheet and acquisition layer comprise fibers. The topsheet/acquisition layer laminate includes three-dimensional protrusions extending from the plane of the topsheet/acquisition layer laminate. The topsheet and the acquisition layer are nested together such that most of the three-dimensional projections formed in the topsheet coincide and fit together with most of the three-dimensional projections formed in the acquisition layer to provide a three-dimensional Topsheet/acquisition layer laminate of the lobe. The topsheet/acquisition layer laminate has a first surface comprising an acquisition layer. The absorbent article includes a dry-laid fibrous structure, a liquid-impervious backsheet, and a carrier layer having a first surface and a second surface. The dry-laid fibrous structure is positioned on the first surface of the carrier layer such that the second surface of the carrier layer faces towards the first surface of the backsheet or topsheet/acquisition layer laminate.
该顶片/采集层层合体中的顶片和采集层可彼此紧密接触。The topsheet and acquisition layer in the topsheet/acquisition layer laminate can be in intimate contact with each other.
大多数三维突出部可由顶片和采集层的纤维形成。该大多数三维突出部可包括形成开口的基座、相对的远侧部分、和介于大多数三维突出部的基座和远侧部分之间的一个或多个侧壁。基座、远侧部分和一个或多个侧壁可由纤维形成，使得大多数三维突出部可仅在基座处具有开口。该顶片/采集层层合体的三维突出部的至少50％或至少80％可仅在基座处具有开口。Most of the three-dimensional protrusions can be formed from the fibers of the topsheet and acquisition layer. The majority of three-dimensional protrusions may include a base forming an opening, an opposing distal portion, and one or more sidewalls between the base and distal portion of the majority of three-dimensional protrusions. The base, distal portion and one or more side walls may be formed from fibers such that most three-dimensional protrusions may have openings only at the base. At least 50% or at least 80% of the three-dimensional protrusions of the topsheet/acquisition layer laminate may have openings at the base only.
该顶片/采集层层合体的采集层的宽度可比包括干法成网纤维结构或湿法成网纤维结构的采集层的宽度的多于40％和/或吸收芯的宽度的多于20％更宽。The width of the acquisition layer of the topsheet/acquisition layer laminate may be more than 40% of the width of the acquisition layer comprising the dry-laid fibrous structure or the wet-laid fibrous structure and/or more than 20% of the width of the absorbent core wider.
该吸收制品可包括衬圈箍。The absorbent article may include a collar cuff.
该顶片/采集层层合体的大多数三维突出部可至少或仅存在于其中顶片/采集层层合体中的顶片与采集层重叠的区域中。Most of the three-dimensional protrusions of the topsheet/acquisition layer laminate may be present at least or only in the regions where the topsheet and acquisition layer in the topsheet/acquisition layer laminate overlap.
该顶片/采集层层合体的大多数三维突出部可存在于平行于吸收制品的横向轴线延伸的区域中。该顶片/采集层层合体的大多数三维突出部可存在于平行于吸收制品的纵向轴线延伸但不延伸超过其中衬圈箍附接到吸收制品的区域的区域中。在该情况下，被形成在顶片/采集层层合体的顶片中的大多数三维突出部由顶片的纤维形成。Most of the three-dimensional protrusions of the topsheet/acquisition layer laminate may be present in regions extending parallel to the transverse axis of the absorbent article. Most of the three-dimensional protrusions of the topsheet/acquisition layer laminate may be present in regions extending parallel to the longitudinal axis of the absorbent article but not extending beyond the region where the collar cuffs are attached to the absorbent article. In this case, most of the three-dimensional protrusions formed in the topsheet of the topsheet/acquisition layer laminate are formed by the fibers of the topsheet.
该大多数三维突出部可为顶片/采集层层合体中的三维突出部的多于50％或多于60％或多于70％或多于80％或多于90％或多于95％或多于98％。The majority of three-dimensional protrusions may be more than 50% or more than 60% or more than 70% or more than 80% or more than 90% or more than 95% of the three-dimensional protrusions in the topsheet/acquisition layer laminate or more than 98%.
该吸收制品的载体层可为着色的。The carrier layer of the absorbent article may be colored.
该采集层在平行于纵向轴线的方向上的长度可小于顶片在平行于纵向轴线的方向上的长度。The length of the acquisition layer in a direction parallel to the longitudinal axis may be less than the length of the topsheet in a direction parallel to the longitudinal axis.
当吸收制品在使用中时，顶片/采集层层合体的大多数三维突出部可朝底片或朝穿着者的身体突出。Most of the three-dimensional protrusions of the topsheet/acquisition layer laminate may protrude towards the backsheet or towards the wearer's body when the absorbent article is in use.
附图说明Description of drawings
虽然本说明书通过特别指出并清楚地要求保护本发明的权利书要求作出结论，但据信通过结合附图阅读以下说明可更好地理解本发明，其中：While the specification concludes by claims which particularly point out and distinctly claim the invention, it is believed that the invention will be better understood from the following description when read in conjunction with the accompanying drawings, in which:
图1为根据本发明的呈尿布形式的吸收制品，该尿布包括示例性顶片/采集层层合体，其中采集层的长度小于顶片的长度，其中一些层被部分地移除；Figure 1 is an absorbent article according to the present invention in the form of a diaper comprising an exemplary topsheet/acquisition layer laminate in which the length of the acquisition layer is less than the length of the topsheet, with some layers partially removed;
图2为图1的尿布的横截面；Figure 2 is a cross-section of the diaper of Figure 1;
图3为图1的尿布的横截面；Figure 3 is a cross-section of the diaper of Figure 1;
图4为根据本发明的呈尿布形式的吸收制品，该尿布包括示例性顶片/采集层层合体，其中顶片/采集层层合体的三维突出部仅被形成在顶片/采集层层合体中的顶片与采集层重叠的位置，其中一些层被部分地移除；Figure 4 is an absorbent article according to the present invention in the form of a diaper comprising an exemplary topsheet/acquisition layer laminate wherein the three-dimensional protrusions of the topsheet/acquisition layer laminate are formed only on the topsheet/acquisition layer laminate Where the top sheet overlaps the acquisition layers in , some layers are partially removed;
图5为根据本发明的呈尿布形式的吸收制品，该尿布包括具有另一种类型的吸收芯的示例性顶片/采集层层合体，其中一些层被部分地移除；Figure 5 is an absorbent article according to the present invention in the form of a diaper comprising an exemplary topsheet/acquisition layer laminate with another type of absorbent core with some layers partially removed;
图6为图5的尿布的横截面；Figure 6 is a cross-section of the diaper of Figure 5;
图7为在与图6相同的点处截取的图5的吸收制品的横截面，其中由于吸收制品加载有液体身体流出物而形成通道；Figure 7 is a cross-section of the absorbent article of Figure 5, taken at the same point as Figure 6, wherein channels are formed as a result of the absorbent article being loaded with liquid bodily exudates;
图8为适用于本发明的工艺的示例的示意侧视图；Figure 8 is a schematic side view of an example of a process suitable for the present invention;
图9为适用于本发明的工艺的另一个示例的示意侧视图；Figure 9 is a schematic side view of another example of a process suitable for the present invention;
图10为适用于本发明的工艺的另一个示例的示意侧视图；Figure 10 is a schematic side view of another example of a process suitable for the present invention;
图11为根据本发明的呈尿布形式的吸收制品，该尿布包括具有载体层的示例性顶片/采集层层合体，其中一些层被部分地移除；Figure 11 is an absorbent article according to the present invention in the form of a diaper comprising an exemplary topsheet/acquisition layer laminate with a carrier layer with some layers partially removed;
图12A为图11的尿布的横截面；Figure 12A is a cross-section of the diaper of Figure 11;
图12B为图11的尿布的另一个横截面；Figure 12B is another cross-section of the diaper of Figure 11;
图13为根据本发明的呈尿布形式的吸收制品，该尿布包括具有载体层的示例性顶片/采集层层合体，其中一些层被部分地移除；Figure 13 is an absorbent article according to the present invention in the form of a diaper comprising an exemplary topsheet/acquisition layer laminate with a carrier layer with some layers partially removed;
图14为图13的尿布的横截面；Figure 14 is a cross-section of the diaper of Figure 13;
图15为根据本发明的呈尿布形式的吸收制品，该尿布包括具有被定位在吸收制品的前区中的采集层的示例性顶片/采集层层合体，其中一些层被部分地移除；Figure 15 is an absorbent article according to the present invention in the form of a diaper comprising an exemplary topsheet/acquisition layer laminate having an acquisition layer positioned in the front region of the absorbent article with some layers partially removed;
图16为根据本发明的呈尿布形式的吸收制品，该尿布包括具有被定位在吸收制品的后区中的采集层的示例性顶片/采集层层合体，其中一些层被部分地移除；Figure 16 is an absorbent article according to the present invention in the form of a diaper comprising an exemplary topsheet/acquisition layer laminate having an acquisition layer positioned in the rear region of the absorbent article with some layers partially removed;
图17为设备的透视图，该设备包括用于形成本发明的顶片/采集层层合体的第一相互啮合辊和第二相互啮合辊；Figure 17 is a perspective view of an apparatus comprising first and second intermeshing rolls for forming the topsheet/acquisition layer laminate of the present invention;
图18A为在图17中所示的设备的一部分的横截面描述；Figure 18A is a cross-sectional depiction of a portion of the device shown in Figure 17;
图18B为在图17中所示的设备的第二相互啮合辊的一部分的透视图；Figure 18B is a perspective view of a portion of the second intermeshing rollers of the apparatus shown in Figure 17;
图19A为利用在图17中所示的设备获得的顶片/采集层层合体的三维突出部的示意图；Figure 19 A is the schematic diagram of the three-dimensional protrusion of the topsheet/acquisition layer laminate obtained using the apparatus shown in Figure 17;
图19B为在图19A中所示的顶片/采集层层合体的三维突出部的透视图；Figure 19B is a perspective view of a three-dimensional protrusion of the topsheet/acquisition layer laminate shown in Figure 19A;
图19C为在图19A中所示的顶片/采集层层合体的三维突出部的另一个透视图；Figure 19C is another perspective view of the three-dimensional protrusions of the topsheet/acquisition layer laminate shown in Figure 19A;
图19D为利用在图17中所示的设备获得的顶片/采集层层合体的三维突出部的示意图；Figure 19D is a schematic diagram of a three-dimensional projection of a topsheet/acquisition layer laminate obtained using the apparatus shown in Figure 17;
图19E为利用在图17中所示的设备获得的顶片/采集层层合体的三维突出部的示意图；Figure 19E is a schematic diagram of a three-dimensional projection of a topsheet/acquisition layer laminate obtained using the apparatus shown in Figure 17;
图19F为利用在图17中所示的设备获得的顶片/采集层层合体的三维突出部的示意图；Figure 19F is a schematic diagram of a three-dimensional projection of a topsheet/acquisition layer laminate obtained using the apparatus shown in Figure 17;
图20A为利用在图17中所示的设备获得的顶片/采集层层合体的三维突出部的示意图；Figure 20A is the schematic diagram of the three-dimensional projection of the topsheet/acquisition layer laminate obtained using the apparatus shown in Figure 17;
图20B为利用在图17中所示的设备获得的顶片/采集层层合体的三维突出部的示意图；Figure 20B is a schematic diagram of a three-dimensional projection of a topsheet/acquisition layer laminate obtained using the apparatus shown in Figure 17;
图20C为利用在图17中所示的设备获得的顶片/采集层层合体的三维突出部的示意图；Figure 20C is a schematic diagram of a three-dimensional projection of a topsheet/acquisition layer laminate obtained using the apparatus shown in Figure 17;
图20D为利用在图17中所示的设备获得的顶片/采集层层合体的三维突出部的示意图；Figure 20D is a schematic diagram of a three-dimensional projection of a topsheet/acquisition layer laminate obtained using the apparatus shown in Figure 17;
具体实施方式detailed description
术语的定义Definition of terms
如本文所用，术语“吸收制品”是指紧贴或邻近穿着者的身体以吸收和容纳从身体排出的各种液体身体流出物的一次性产品，诸如尿布、裤和女性卫生巾等。这些吸收制品通常包括顶片、底片、吸收芯和任选的采集层和/或分配层、以及其它部件，其中吸收芯通常被放置在底片和采集系统或顶片之间。本发明的吸收制品可为尿布或裤。As used herein, the term "absorbent article" refers to disposable products, such as diapers, pants and feminine hygiene napkins, which are placed next to or adjacent to the wearer's body to absorb and contain various liquid bodily exudates from the body. These absorbent articles typically comprise a topsheet, a backsheet, an absorbent core and optional acquisition and/or distribution layers, and other components, wherein the absorbent core is typically positioned between the backsheet and the acquisition system or topsheet. Absorbent articles of the present invention may be diapers or pants.
如本文所用，术语“尿布”是指旨在由穿着者围绕下体穿着的用以吸收和容纳由身体排出的液体身体流出物的吸收制品。尿布可由幼儿(例如婴儿或学步儿童)或成人穿着。它们可具有扣紧元件。As used herein, the term "diaper" refers to an absorbent article intended to be worn by the wearer about the lower torso to absorb and contain liquid bodily exudates from the body. Diapers can be worn by young children (such as infants or toddlers) or adults. They can have fastening elements.
如本文所用，术语“裤”是指被设计成用于婴儿或成人穿着者的具有固定边缘、腰部开口和腿部开口的吸收制品。通过将穿着者的腿伸入腿部开口中并将裤型吸收制品拉到穿着者下体附近的位置而将裤穿到穿着者身上。裤可通过任何合适的技术来预成形，包括但不限于使用可重复扣紧的和/或不可重复扣紧的粘结部(例如，缝合件、焊接件、粘合剂、内聚粘合部、扣件等)来将吸收制品的各个部分接合在一起。裤可在沿制品周边的任何位置预成形(例如，侧边紧固的、前腰紧固的)。As used herein, the term "pant" refers to an absorbent article having fixed edges, a waist opening, and leg openings designed for infant or adult wearers. The pant is put on the wearer by inserting the wearer's legs into the leg openings and pulling the pant-type absorbent article into position about the wearer's lower torso. Pants may be preformed by any suitable technique, including but not limited to the use of refastenable and/or non-refastenable bonds (e.g., seams, welds, adhesives, cohesive bonds , fasteners, etc.) to join the various parts of the absorbent article together. Pants can be preformed anywhere along the perimeter of the article (eg, side fastened, front waist fastened).
如本文所用，术语“可延展的”是指如下材料：如果经受以下测试，在达到断裂力时或之前，该材料在施加力时能够沿吸收制品的纵向轴线和/或横向轴线经历等于或大于其初始长度的至少100％的表观伸长：As used herein, the term "extensible" refers to a material that, when subjected to the following test, is capable of undergoing a force equal to or greater than Apparent elongation of at least 100% of its original length:
该纵向轴线拉伸特性和/或横向轴线拉伸特性使用方法WSP 110.4(05)选项B以50mm的样本宽度、60mm的标距、和60mm/min的延伸速率来测量。The longitudinal axis tensile properties and/or transverse axis tensile properties are measured using method WSP 110.4(05) option B with a specimen width of 50 mm, a gauge length of 60 mm, and a rate of extension of 60 mm/min.
根据如上所述的“测试方法”，期望材料在达到断裂力时或之前能够沿吸收制品的纵向轴线和/或横向轴线经历等于或大于至少100％或110％或120％或130％最高至200％的表观伸长。According to the "Test Method" as described above, it is expected that the material will be able to experience equal to or greater than at least 100% or 110% or 120% or 130% up to 200% along the longitudinal axis and/or transverse axis of the absorbent article at or before reaching the breaking force. % apparent elongation.
如果材料能够经历小于其初始长度的100％的表观伸长(如果经受上述测试)，则其为“不可延展的”，如本文所用。A material is "non-extensible," as used herein, if it is capable of undergoing an apparent elongation of less than 100% of its original length (if subjected to the above test).
如本文所用，术语“顶片/采集层层合体”是指以面对面关系设置的顶片与采集层的紧密组合。顶片具有第一表面和第二表面。当吸收制品在使用时，顶片的第一表面面朝穿着者的身体。该采集层面向底片。在将顶片幅材和采集层彼此组合以形成顶片/采集层层合体幅材期间，顶片幅材和采集层可能已经历同时且联合的机械变形，该顶片/采集层层合体幅材提供每个吸收制品中的每个顶片/采集层层合体。该顶片/采集层层合体包括形成三维突出部的变形部。通过将顶片和采集层嵌套在一起来形成顶片/采集层层合体，使得被形成在顶片中的大多数三维突出部与被形成在采集层中的大多数三维突出部重合并贴合在一起，如图19A和20A所示。As used herein, the term "topsheet/acquisition layer laminate" refers to the intimate combination of a topsheet and an acquisition layer disposed in face-to-face relationship. The topsheet has a first surface and a second surface. The first surface of the topsheet faces the wearer's body when the absorbent article is in use. The acquisition layer faces the negative. During combining the topsheet web and the acquisition layer with each other to form the topsheet/acquisition layer laminate web, the topsheet web and the acquisition layer may have undergone simultaneous and joint mechanical deformation, the topsheet/acquisition layer laminate web A material provides each topsheet/acquisition layer laminate in each absorbent article. The topsheet/acquisition layer laminate includes deformations that form three-dimensional protrusions. A topsheet/acquisition layer laminate is formed by nesting the topsheet and acquisition layer together such that most of the three-dimensional protrusions formed in the topsheet coincide and affix most of the three-dimensional protrusions formed in the acquisition layer Together, as shown in Figures 19A and 20A.
在顶片/采集层层合体中，顶片和采集层可彼此紧密接触。In topsheet/acquisition layer laminates, the topsheet and acquisition layer may be in intimate contact with each other.
在顶片/采集层层合体的三维突出部的区域中，不存在顶片或采集层中的一者互穿透过相应的另一个顶片或采集层。顶片和采集层均为可延展的，使得顶片和/或采集层能够拉伸并且不互穿透过相应的破裂的顶片或采集层。In the region of the three-dimensional protrusions of the topsheet/acquisition layer laminate, there is no interpenetration of one of the topsheet or acquisition layer through the corresponding other topsheet or acquisition layer. Both the topsheet and the acquisition layer are extensible such that the topsheet and/or acquisition layer are able to stretch without interpenetrating through the corresponding ruptured topsheet or acquisition layer.
在三维突出部的区域中，顶片和/或采集层可包括一个或多个间断部。该一个或多个间断部的形成可归因于顶片和采集层的属性，即纤维的表观伸长、纤维移动性、在其中形成顶片/采集层层合体的三维突出部的区域中的变形和拉伸能力。换句话讲，顶片的可延展性可小于采集层或反之亦然；然而，非破裂的顶片或采集层不互穿过相应的破裂的顶片或采集层。In the region of the three-dimensional protrusions, the topsheet and/or the acquisition layer may comprise one or more discontinuities. The formation of the one or more discontinuities can be attributed to the properties of the topsheet and the acquisition layer, i.e. the apparent elongation of the fibers, the mobility of the fibers, the areas in which the three-dimensional protrusions of the topsheet/acquisition layer laminate are formed deformation and stretching capabilities. In other words, the topsheet may be less extensible than the acquisition layer or vice versa; however, non-ruptured topsheets or acquisition layers do not interpenetrate corresponding ruptured topsheets or acquisition layers.
因此，顶片/采集层层合体可通过如下方式形成：在顶片/采集层层合体的三维突出部的区域中间断顶片或采集层中的一者，使得相应的另一个非间断的顶片或采集层的三维突出部至少部分地与间断的顶片或采集层的三维突出部贴合在一起，如图19D，19E，20B和20C所示。Accordingly, the topsheet/acquisition layer laminate can be formed by interrupting one of the topsheet or the acquisition layer in the area of the three-dimensional projections of the topsheet/acquisition layer laminate such that the corresponding other non-interrupted topsheet The three-dimensional protrusions of the sheet or acquisition layer are at least partially bonded to the discontinuous three-dimensional protrusions of the top sheet or acquisition layer, as shown in Figures 19D, 19E, 20B and 20C.
另选地或除了上文所述之外，顶片/采集层层合体还可通过如下方式来形成：在顶片/采集层层合体的三维突出部的区域中间断顶片和采集层，并且顶片的三维突出部与采集层的三维突出部重合并贴合在一起。如果顶片和采集层包括三维突出部的区域中的间断部，则顶片/采集层层合体的三维突出部的区域中的顶片中的间断部将不与顶片/采集层层合体的三维突出部的区域中的采集层中的间断部重合，如图19F和20D所示。在顶片/采集层层合体的三维突出部的区域中，不存在顶片或采集层中的一者互穿透过相应的另一个顶片或采集层。Alternatively or in addition to the above, the topsheet/acquisition layer laminate can also be formed by interrupting the topsheet and acquisition layer in the region of the three-dimensional protrusions of the topsheet/acquisition layer laminate, and The three-dimensional protrusions of the topsheet coincide and fit together with the three-dimensional protrusions of the acquisition layer. If the topsheet and the acquisition layer comprise a discontinuity in the area of the three-dimensional protrusion, the discontinuity in the topsheet in the area of the three-dimensional protrusion of the topsheet/acquisition layer laminate will not separate from that of the topsheet/acquisition layer laminate. The discontinuities in the acquisition layer in the region of the three-dimensional protrusion coincide, as shown in Figures 19F and 20D. In the region of the three-dimensional protrusions of the topsheet/acquisition layer laminate, there is no interpenetration of one of the topsheet or acquisition layer through the corresponding other topsheet or acquisition layer.
如本文所用，术语“间断部”是指在顶片/采集层层合体的形成期间被形成在顶片和/或采集层中的洞，并且不包括通常存在于非织造材料中的纤维之间的孔和间隙。As used herein, the term "discontinuity" refers to a hole that is formed in the topsheet and/or acquisition layer during formation of the topsheet/acquisition layer laminate, and does not include the gap between fibers normally present in nonwoven materials. holes and gaps.
如本文所用，术语“机械变形并组合”是指顶片幅材和采集层被放置成面对面关系，并且同时可在第一辊和第二辊之间机械地变形，并且同时被紧密地组合。顶片幅材和采集层的机械变形取决于工艺、所需设备，但也取决于顶片幅材和采集层的属性，即纤维的表观伸长、纤维移动性、在其中形成顶片/采集层层合体幅材的三维突出部的区域中变形和拉伸的能力、经历塑性变形的能力，该塑性变形在使用了第一辊和第二辊之后或由于弹性恢复而部分地回弹之后定形。As used herein, the term "mechanically deformed and combined" means that the topsheet web and acquisition layer are placed in face-to-face relationship and simultaneously mechanically deformable between a first roll and a second roll, and while being intimately combined. The mechanical deformation of the topsheet web and acquisition layer depends on the process, required equipment, but also on the properties of the topsheet web and acquisition layer, i.e. apparent elongation of fibers, fiber mobility, formation of topsheet/ The ability to deform and stretch in the region of the three-dimensional protrusions of the acquisition layer laminate web, the ability to undergo plastic deformation after the use of first and second rollers or after partial rebound due to elastic recovery set shape.
该机械变形可包括在第一相互啮合辊和第二相互啮合辊之间将顶片以及采集层相互啮合在一起。第一相互啮合辊包括多个脊和对应凹槽。第二相互啮合辊包括多排周向间隔开的齿和对应凹槽，使得获得包括三维突出部的多个变形部。隧道形环可为一种类型的三维突出部。The mechanical deformation may include intermeshing the topsheet and the acquisition layer between a first intermeshing roll and a second intermeshing roll. The first intermeshing roller includes a plurality of ridges and corresponding grooves. The second intermeshing roller comprises a plurality of rows of circumferentially spaced teeth and corresponding grooves, such that a plurality of deformations comprising three-dimensional protrusions is obtained. A tunnel-shaped ring may be a type of three-dimensional protrusion.
对于每个三维突出部：For each 3D protrusion:
-顶片被嵌套到采集层中或反之亦然，使得顶片的大多数三维突出部和采集层的大多数三维突出部重合并贴合在一起，如图19A和20A所示。在顶片/采集层层合体的三维突出部的区域中，不存在顶片或采集层中的一者互穿进入或透过相应的另一个顶片或采集层。- The topsheet is nested into the acquisition layer or vice versa such that most of the three dimensional protrusions of the top sheet and most of the three dimensional protrusions of the acquisition layer coincide and fit together as shown in Figures 19A and 20A. In the region of the three-dimensional protrusions of the topsheet/acquisition layer laminate, there is no interpenetration of one of the topsheet or acquisition layer into or through the corresponding other topsheet or acquisition layer.
-除了上文所述之外，顶片或采集层中的一者可在顶片/采集层层合体的三维突出部的区域中间断，使得由相应的另一个非间断的顶片或采集层制成的三维突出部至少部分地与间断的顶片的三维突出部或间断的采集层的三维突出部贴合在一起，如图19D,19E,20B和20C所示。在顶片/采集层层合体的三维突出部的区域中，不存在顶片或采集层中的一者互穿透过相应的另一个顶片或采集层。-In addition to the above, one of the topsheet or the acquisition layer can be interrupted in the area of the three-dimensional protrusion of the topsheet/acquisition layer laminate, so that the corresponding other non-interrupted topsheet or acquisition layer The three-dimensional protrusions are formed at least partially affixed to the discontinuous topsheet three-dimensional protrusions or the discontinuous acquisition layer three-dimensional protrusions, as shown in Figures 19D, 19E, 20B and 20C. In the region of the three-dimensional protrusions of the topsheet/acquisition layer laminate, there is no interpenetration of one of the topsheet or acquisition layer through the corresponding other topsheet or acquisition layer.
-另选地或除了上文所述之外，顶片和采集层可在顶片/采集层层合体的三维突出部的区域中间断，并且顶片的三维突出部与采集层的三维突出部重合并贴合在一起。顶片/采集层层合体的三维突出部的区域中的顶片中的间断部可不与顶片/采集层层合体的三维突出部的区域中的采集层中的间断部重合，如图19F和20D所示。在顶片/采集层层合体的三维突出部的区域中，不存在顶片或采集层中的一者互穿透过相应的另一个顶片或采集层。-Alternatively or in addition to the above, the topsheet and acquisition layer can be interrupted in the region of the three-dimensional projections of the topsheet/acquisition layer laminate, and the three-dimensional projections of the topsheet are separated from the three-dimensional projections of the acquisition layer Fold and snap together. The discontinuity in the topsheet in the region of the three-dimensional protrusion of the topsheet/acquisition layer laminate may not coincide with the discontinuity in the acquisition layer in the region of the three-dimensional protrusion of the topsheet/acquisition layer laminate, as shown in Figure 19F and 20D. In the region of the three-dimensional protrusions of the topsheet/acquisition layer laminate, there is no interpenetration of one of the topsheet or acquisition layer through the corresponding other topsheet or acquisition layer.
如本文所用，术语“大多数三维突出部”是指顶片/采集层层合体幅材中的三维突出部或吸收制品的顶片/采集层层合体中的三维突出部的多于50％或多于60％或多于70％或多于80％或多于90％或多于95％或多于98％，它们各自包括形成开口并具有突出部基座宽度的基座、相对的远侧部分和介于三维突出部的基座和远侧部分之间的一个或多个侧壁。基座、远侧部分和一个或多个侧壁由纤维形成，使得三维突出部仅在基座处具有开口(如图19A示例性所示)。如本文所用，术语“隧道形环”是指顶片/采集层层合体的三维突出部由多个环限定，该多个环从顶片延伸至采集层或从采集层延伸至顶片。该多个环包括由顶片/采集层层合体制成的一根或多根纤维。该多个环的纤维大致彼此对齐，使得多个环形成隧道形环。隧道形环可被定义为半圆筒形部件(cylindania)，即沿其长度对半切割的圆筒，其包括隧道形环的每个末端处的开口和基座开口。As used herein, the term "majority of three-dimensional protrusions" refers to more than 50% or more of the three-dimensional protrusions in the topsheet/acquisition layer laminate web or the topsheet/acquisition layer laminate of an absorbent article. More than 60% or more than 70% or more than 80% or more than 90% or more than 95% or more than 98%, each of which includes a base forming an opening and having the width of the protrusion base, the opposite distal side portion and one or more side walls between the base and the distal portion of the three-dimensional protrusion. The base, distal portion, and one or more side walls are formed from fibers such that the three-dimensional protrusion has openings only at the base (as exemplarily shown in FIG. 19A ). As used herein, the term "tunnel-shaped loops" means that the three-dimensional protrusions of the topsheet/acquisition layer laminate are defined by a plurality of loops extending from the topsheet to the acquisition layer or from the acquisition layer to the topsheet. The plurality of loops comprises one or more fibers made from a topsheet/acquisition layer laminate. The fibers of the plurality of loops are generally aligned with each other such that the plurality of loops form a tunnel-shaped loop. A tunnel-shaped ring may be defined as a cylindrical part (cylindania), ie a cylinder cut in half along its length, comprising an opening at each end of the tunnel-shaped ring and a base opening.
如本文所用，术语“纵向”或“MD”是指材料诸如幅材沿整个制造过程前进的路径。As used herein, the term "machine direction" or "MD" refers to the path along which a material, such as a web, travels through a manufacturing process.
如本文所用，术语“横向”或“CD”是指在幅材的平面中垂直于纵向的路径。As used herein, the term "cross direction" or "CD" refers to the path in the plane of the web perpendicular to the machine direction.
如本文所用，术语“纤维素纤维”是指通常为木浆纤维的天然纤维。可适用的木浆包括化学木浆，诸如牛皮纸浆、亚硫酸盐木浆和硫酸盐木浆，以及机械木浆，包括例如碎木浆、热力学木浆以及化学改性的热力学木浆。也可利用得自落叶树(在下文中也被称作“硬木”)和针叶树(在下文中也被称作“软木”)的木浆。硬木纤维和软木纤维可被共混，或者另选地以层的形式沉积以提供分层的幅材。As used herein, the term "cellulosic fibers" refers to natural fibers, typically wood pulp fibers. Applicable wood pulps include chemical pulps, such as kraft, sulfite, and kraft pulps, and mechanical pulps, including, for example, groundwood, thermodynamic pulp, and chemically modified thermodynamic pulp. Wood pulp from deciduous trees (hereinafter also referred to as "hardwood") and coniferous trees (hereinafter also referred to as "softwood") may also be utilized. Hardwood fibers and softwood fibers may be blended, or alternatively deposited in layers to provide a layered web.
如本文所用，术语“干法成网纤维”是指在气态流体介质(空气)中提供的纤维。As used herein, the term "dry-laid fibers" refers to fibers provided in a gaseous fluid medium (air).
如本文所用，术语“湿法成网纤维”包括根据湿法成网造纸工艺在被转换加工成幅材并被干燥之前悬浮在含水介质诸如水中的纤维素纤维。As used herein, the term "wet-laid fibers" includes cellulosic fibers suspended in an aqueous medium such as water according to the wet-laid papermaking process prior to being converted into a web and dried.
如本文所用，术语“幅材”是指能够被卷绕成卷的材料。幅材可为非织造材料。As used herein, the term "web" refers to a material capable of being wound into a roll. The web can be a nonwoven material.
如本文所用，术语“非织造幅材”是指由定向或任意取向的纤维通过摩擦和/或胶粘和/或粘附而粘结成的制造的材料、幅材、片或毛层，不包括纸张和通过织造、编织、簇成、缝编而组合束缚的纱或长丝的产品，无论是否另外缝过。纤维可为天然或人造来源。该纤维可以是短纱或者连续长丝或者是原位形成的。非织造材料的多孔纤维结构可按需要被构造成液体可透过的或不可透过的。As used herein, the term "nonwoven web" refers to a manufactured material, web, sheet or batt of oriented or randomly oriented fibers bonded by friction and/or gluing and/or adhesion, not Products including paper and yarns or filaments combined by weaving, weaving, tufting, stitchbonding, whether or not otherwise sewn. Fibers may be of natural or man-made origin. The fibers may be staple or continuous filaments or formed in situ. The porous fibrous structure of the nonwoven can be configured to be liquid permeable or impermeable as desired.
如本文所用，术语“吸收芯”是指如下部件，其被放置在或旨在被放置在吸收制品内，并且包括被包封在芯包裹物中的吸收材料。术语“吸收芯”不包括采集层或分配层或不是芯包裹物的整体部分或不被放置在芯包裹物内的吸收制品的任何其它部件。吸收芯通常为包括全部或至少大部分的超吸收聚合物并且具有吸收制品的所有部件的最高吸收容量的吸收制品的部件。As used herein, the term "absorbent core" refers to the component which is placed or intended to be placed within an absorbent article and which comprises absorbent material enclosed in a core wrap. The term "absorbent core" does not include acquisition or distribution layers or any other component of an absorbent article that is not an integral part of or placed within a core wrap. The absorbent core is generally the component of the absorbent article comprising all or at least a majority of the superabsorbent polymer and having the highest absorbent capacity of all components of the absorbent article.
如本文所用，术语“基本上不含吸收材料”是指在基本上不含吸收材料的区域中，吸收材料的基重为吸收芯的其余部分中的吸收材料的基重的至少小于10％，具体地小于5％，或小于2％。As used herein, the term "substantially free of absorbent material" means that in regions substantially free of absorbent material, the basis weight of absorbent material is at least less than 10% of the basis weight of absorbent material in the remainder of the absorbent core, Specifically less than 5%, or less than 2%.
如本文所用，术语“超吸收聚合物”(本文缩写为“SAP”)是指如下吸收材料：其为交联聚合物材料，当使用“离心保留容量”(CRC)测试(EDANA方法WSP 241.2-05E)来测量时，聚合物材料能够吸收至少10倍于它们的重量的含水的0.9％盐水溶液。本发明的SAP具体地可具有超过20g/g，或超过25g/g，或20至50g/g，或20至40g/g，或25至35g/g的CRC值。可用于本发明的SAP包括多种水不溶性但水可溶胀的能够吸收大量液体身体流出物的聚合物。As used herein, the term "superabsorbent polymer" (abbreviated herein as "SAP") refers to absorbent materials which are cross-linked polymeric 05E), polymeric materials are capable of absorbing at least 10 times their weight in aqueous 0.9% saline solution. The SAP of the invention may specifically have a CRC value of more than 20 g/g, or more than 25 g/g, or 20 to 50 g/g, or 20 to 40 g/g, or 25 to 35 g/g. SAPs useful in the present invention include a variety of water-insoluble but water-swellable polymers capable of absorbing large volumes of liquid bodily exudates.
如本文所用，术语“接合到”包括通过将元件直接附连到其它元件上而将元件直接固定到另一个元件上的构型，以及通过将元件附连到一个或多个中间元件，该中间元件继而附连到另一个元件上，而将元件间接固定到另一个元件上的构型。术语“接合到”涵盖将某一元件在选定位置处固定到另一个元件的构型，以及将某一元件横跨元件之一的整个表面完全地固定到另一个元件的构型。术语“接合到”包括任何已知的其中元件可被固定的方式，包括但不限于机械缠结。As used herein, the term "joined to" includes configurations in which an element is directly secured to another element by directly attaching the element to another element, as well as by attaching the element to one or more intermediate elements, which A configuration in which an element is in turn attached to another element, while indirectly securing an element to another element. The term "bonded to" encompasses configurations that secure an element to another element at a selected location, as well as configurations that completely secure an element to another element across the entire surface of one of the elements. The term "bonded to" includes any known means by which an element may be secured, including but not limited to mechanical entanglement.
如本文所用，术语“相邻于横向边缘接合”是指当第一层的第一横向边缘和/或第二横向边缘相邻于第二层的第一横向边缘和/或第二横向边缘接合时，第一层的第一横向边缘和/或第二横向边缘被设置在与第二层的第一横向边缘和/或第二横向边缘内侧地间隔开的区域内。该区域具有第二层的宽度的1％至30％的宽度。As used herein, the term "joined adjacent to a lateral edge" means when the first lateral edge and/or the second lateral edge of the first layer is joined adjacent to the first lateral edge and/or the second lateral edge of the second layer. , the first lateral edge and/or the second lateral edge of the first layer is arranged in a region spaced inwardly from the first lateral edge and/or the second lateral edge of the second layer. This region has a width of 1% to 30% of the width of the second layer.
“包括”或“包含”是开放式术语，每个均指定其后所述例如一个组分的存在，但不排除本领域已知的或本文所公开的其它特征例如元件、步骤、组分的存在。基于动词“包括”的这些术语应当被解读为涵盖较窄的术语“基本上由…组成”，其排除未提及的显著地影响特征结构执行其功能的方式的任何元件、步骤或成分；并且涵盖术语“由…组成”，其排除未指定的任何元件、步骤或成分。下文所述的任何优选的或示例性实施方案不限制权利要求的范围，除非明确地指明如此进行。字词“通常”、“常常”、“有利地”等也限定特征，其不旨在限制权利要求的范围，除非明确地指明如此进行。"Comprising" or "comprising" are open-ended terms, each specifying the presence of, for example, a component stated thereafter, but not excluding the presence of other features such as elements, steps, components, known in the art or disclosed herein. exist. These terms based on the verb "to comprise" should be read to cover the narrower term "consisting essentially of", which excludes any element, step or ingredient not mentioned that significantly affects the manner in which the characteristic structure performs its function; and The term "consisting of" is contemplated to the exclusion of any element, step or ingredient not specified. Any preferred or exemplary embodiments described below do not limit the scope of the claims unless expressly stated to do so. The words "generally," "often," "advantageously," etc. also define features and are not intended to limit the scope of the claims unless expressly stated to do so.
对吸收制品20的一般说明General Description of Absorbent Article 20
一种其中可使用本发明的吸收芯28的示例性吸收制品20为如在图1、图4和图5中所示的具有不同吸收芯构造的胶粘尿布20。图1、图4和图5为处于平展状态的示例性尿布20的顶部平面图，其中该结构的各个部分被切除以更清楚地示出尿布20的构造。该尿布20仅是出于例证的目的示出的，因为本发明可用于制备多种尿布或其它吸收制品。An exemplary absorbent article 20 in which the absorbent core 28 of the present invention may be used is a taped diaper 20 having various absorbent core configurations as shown in FIGS. 1 , 4 and 5 . 1 , 4 and 5 are top plan views of an exemplary diaper 20 in a flattened state with various portions of the structure cut away to more clearly show the configuration of the diaper 20 . The diaper 20 is shown for illustrative purposes only, as the invention may be used to prepare a variety of diapers or other absorbent articles.
吸收制品20包括由液体可透过的顶片24和采集层52形成的顶片/采集层层合体245。换句话讲，吸收制品20包括液体可透过的顶片24和采集层52，其特征在于顶片24和采集层52被接合以形成顶片/采集层层合体245。吸收制品20包括液体不可透过的底片25和介于顶片24和底片25之间的吸收芯28。吸收制品20包括前边缘10、后边缘12、和两个纵向侧边缘13。前边缘10为吸收制品20的在被穿着时旨在朝向使用者的前部放置的边缘，并且后边缘12为相对边缘。当从处于平展构型的面向穿着者侧观察吸收制品20时，吸收制品20可假想地被纵向轴线80划分，该纵向轴线从吸收制品20的前边缘10延伸至后边缘12，并且将吸收制品20相对于该轴线划分成两个基本上对称的半部，如图1、图4和图5示例性地所示。The absorbent article 20 includes a topsheet/acquisition layer laminate 245 formed from a liquid permeable topsheet 24 and an acquisition layer 52 . In other words, the absorbent article 20 comprises a liquid permeable topsheet 24 and an acquisition layer 52 characterized in that the topsheet 24 and the acquisition layer 52 are joined to form a topsheet/acquisition layer laminate 245 . The absorbent article 20 includes a liquid impermeable backsheet 25 and an absorbent core 28 interposed between the topsheet 24 and the backsheet 25 . The absorbent article 20 includes a front edge 10 , a rear edge 12 , and two longitudinal side edges 13 . The front edge 10 is the edge of the absorbent article 20 which, when worn, is intended to lie towards the front of the user, and the rear edge 12 is the opposite edge. When viewing the absorbent article 20 from the wearer-facing side in the flat configuration, the absorbent article 20 can be imaginarily divided by a longitudinal axis 80 that extends from the front edge 10 to the rear edge 12 of the absorbent article 20 and divides the absorbent article 20 is divided with respect to this axis into two substantially symmetrical halves, as exemplarily shown in FIGS. 1 , 4 and 5 .
吸收制品20可包括分配层54，该分配层可包括干法成网纤维结构或湿法成网纤维结构。当吸收制品20在使用时，顶片/采集层层合体245面朝穿着者的身体。The absorbent article 20 can include a distribution layer 54, which can include a dry-laid fibrous structure or a wet-laid fibrous structure. The topsheet/acquisition layer laminate 245 faces the wearer's body when the absorbent article 20 is in use.
根据“湿破裂强度测试方法”以及它们的组合，包括湿法成网纤维的湿法成网纤维结构可具有50g至500g的“湿破裂强度”。A wet-laid fibrous structure comprising wet-laid fibers may have a "wet burst strength" of 50 g to 500 g according to the "Wet Burst Strength Test Method" and combinations thereof.
分配层54可包括干法成网纤维结构。干法成网纤维结构可包括干法成网纤维540。干法成网纤维结构可包括具有超吸收聚合物和干法成网纤维的混合物。干法成网纤维可包括纤维内交联纤维素纤维。Distribution layer 54 may comprise a dry-laid fibrous structure. The dry-laid fibrous structure may include dry-laid fibers 540 . The dry-laid fibrous structure may comprise a mixture of superabsorbent polymer and dry-laid fibers. Dry-laid fibers may include intrafiber crosslinked cellulosic fibers.
该分配层54可不含丝束纤维。The distribution layer 54 may be free of tow fibers.
分配层54可例如包括按重量计至少50％的交联纤维素纤维。交联纤维素纤维可为起褶皱的、加捻的、或卷曲的、或它们的组合(包括起褶皱的、加捻的和卷曲的)。该类型的材料已在过去作为采集系统的一部分用于一次性尿布中，例如US 2008/0312622 A1(Hundorf)。Distribution layer 54 may, for example, comprise at least 50% by weight crosslinked cellulosic fibers. The crosslinked cellulosic fibers may be crimped, twisted, or crimped, or combinations thereof (including crimped, twisted, and crimped). This type of material has been used in the past in disposable diapers as part of an acquisition system, eg US 2008/0312622 A1 (Hundorf).
适用于分配层54的示例性化学交联的纤维素纤维公开于US 5,549,791；US 5,137,537；WO95/34329或US2007/118087中。示例性交联剂可包括聚羧酸诸如柠檬酸和/或聚丙烯酸诸如丙烯酸和马来酸共聚物。Exemplary chemically crosslinked cellulosic fibers suitable for distribution layer 54 are disclosed in US 5,549,791; US 5,137,537; WO95/34329 or US2007/118087. Exemplary crosslinking agents may include polycarboxylic acids such as citric acid and/or polyacrylic acids such as acrylic acid and maleic acid copolymers.
该分配层可通常具有30g/m2至400g/m2，具体地100g/m2至300g/m2的平均基重。采集层的密度可根据制品的压缩程度而变化，但在0.30psi(2.07kPa)下测量时可介于0.03g/cm3至0.15g/cm3之间，具体地介于0.08g/cm3至0.10g/cm3之间。The distribution layer may generally have an average basis weight of 30 g/m2 to 400 g/m2 , in particular 100 g/m2 to 300 g/m2 . The density of the acquisition layer can vary depending on the degree of compression of the article, but can be between 0.03 g/cm3 and 0.15 g/cm3 , specifically 0.08 g/cm3 when measured at 0.30 psi (2.07 kPa) to 0.10g/cm3 .
分配层54可具有30gsm至400gsm，具体地100gsm至300gsm或50gsm至250gsm的平均基重。The distribution layer 54 may have an average basis weight of 30 gsm to 400 gsm, specifically 100 gsm to 300 gsm or 50 gsm to 250 gsm.
如下文所详细的工艺所解释的，顶片幅材240和采集层52可同时被机械地变形并组合在一起，以形成顶片/采集层层合体245。顶片/采集层层合体幅材2450形成吸收制品20中的顶片/采集层层合体245。顶片/采集层层合体245包括形成三维突出部250的机械变形部。机械变形部向顶片/采集层层合体245提供三维结构。As explained in the detailed process below, the topsheet web 240 and the acquisition layer 52 can be simultaneously mechanically deformed and brought together to form the topsheet/acquisition layer laminate 245 . The topsheet/acquisition layer laminate web 2450 forms the topsheet/acquisition layer laminate 245 in the absorbent article 20. The topsheet/acquisition layer laminate 245 includes mechanical deformations that form three-dimensional protrusions 250 . The mechanical deformations provide a three-dimensional structure to the topsheet/acquisition layer laminate 245 .
吸收制品20可包括存在于顶片24和底片25之间的弹性化衬圈箍32、和直立阻隔腿箍34。图1，图4和图5也示出了其它典型的尿布部件，诸如包括紧固突片42的紧固系统，该紧固突片朝吸收制品20的后边缘12附接并且朝吸收制品20的前边缘10与着陆区44配合。吸收制品20也可包括附图中未示出的其它典型部件，诸如后弹性腰部结构、前弹性腰部结构、一个或多个横向阻隔箍、洗剂应用等。The absorbent article 20 may include an elasticized gusset cuff 32 and an upstanding barrier leg cuff 34 disposed between the topsheet 24 and the backsheet 25 . Figures 1, 4 and 5 also show other typical diaper components, such as a fastening system comprising fastening tabs 42 attached towards the rear edge 12 of the absorbent article 20 and towards the rear edge 12 of the absorbent article 20. The front edge 10 cooperates with the landing zone 44. The absorbent article 20 may also include other typical features not shown in the figures, such as a rear elastic waist structure, a front elastic waist structure, one or more lateral barrier cuffs, lotion application, and the like.
如图7所示，阻隔腿箍34可由接合到吸收制品20的其余部分(通常为顶片24和/或底片25)的近侧边缘64和游离的端边界定，该游离的端边界定旨在与穿着者的皮肤接触并形成密封件。阻隔腿箍34可在近侧边缘64处通过粘结部65接合，该粘结部可例如通过粘合剂粘结、融合粘结或已知的粘结方法的组合制成。每个阻隔腿箍34可包括一个，两个或更多个弹性线丝35以提供更好的密封。衬圈箍32可相对于阻隔腿箍34被放置在侧向外侧。衬圈箍32能够提供围绕穿着者大腿的更好的密封。通常每个衬圈腿箍32将包括例如位于腿部开口的区域中的顶片24和底片25之间的一个或多个弹性线丝或弹性元件33。As shown in Figure 7, the barrier leg cuffs 34 may be bounded by a proximal edge 64 joined to the rest of the absorbent article 20 (typically the topsheet 24 and/or the backsheet 25) and a free end border intended to In contact with the wearer's skin and form a seal. Barrier leg cuff 34 may be joined at proximal edge 64 by bond 65, which may be made, for example, by adhesive bonding, fusion bonding, or a combination of known bonding methods. Each barrier leg cuff 34 may include one, two or more elastic threads 35 to provide a better seal. The gasket collar 32 may be positioned laterally outboard relative to the barrier leg collar 34 . The gasket cuff 32 can provide a better seal around the wearer's thigh. Typically each gasketed leg cuff 32 will include one or more elastic threads or elastic elements 33, eg, located between the topsheet 24 and the backsheet 25 in the region of the leg openings.
当吸收制品20处于平坦状态时，吸收制品20也可假想地被横向轴线90划分成具有沿纵向轴线测量的相等长度的前区和后区。该吸收制品的横向轴线90垂直于纵向轴线80，并且被放置在吸收制品20的二分之一长度处。吸收制品20的长度可沿纵向轴线80从吸收制品20的前边缘10测量至后边缘12。顶片24、采集层52、分配层54和吸收芯28各自具有宽度，该宽度可从它们相应的横向边缘并且平行于横向轴线90测量。The absorbent article 20 can also be imaginarily divided by the transverse axis 90 into front and rear regions having equal lengths measured along the longitudinal axis when the absorbent article 20 is in a flat state. The transverse axis 90 of the absorbent article is perpendicular to the longitudinal axis 80 and is positioned half the length of the absorbent article 20 . The length of the absorbent article 20 may be measured along the longitudinal axis 80 from the front edge 10 to the rear edge 12 of the absorbent article 20 . The topsheet 24 , acquisition layer 52 , distribution layer 54 and absorbent core 28 each have a width that can be measured from their respective transverse edges and parallel to the transverse axis 90 .
吸收制品20被假想地分成前区36、后区38和位于吸收制品20的前区和后区之间的裆区37。前区、后区和裆区各自为吸收制品20的长度的1/3。吸收制品也可包括前耳片46和后耳片40，如本领域已知的那样。The absorbent article 20 is imaginary divided into a front region 36, a rear region 38 and a crotch region 37 located between the front region and the rear region of the absorbent article 20. The front, back and crotch regions are each 1/3 of the length of the absorbent article 20 . The absorbent article may also include front ears 46 and back ears 40, as is known in the art.
本发明的吸收芯28可包括吸收材料60，该吸收材料为纤维素纤维(所谓的“透气毡”)和超吸收聚合物的共混物，该共混物呈被包封在一个或多个基底中的颗粒形式，参见例如US 5,151,092(Buell)。另选地，吸收芯28可不含透气毡，如下文所详述。The absorbent core 28 of the present invention may comprise an absorbent material 60 that is a blend of cellulosic fibers (so-called "airfelt") and superabsorbent polymers, the blend being encapsulated in one or more In granular form in a substrate, see eg US 5,151,092 (Buell). Alternatively, the absorbent core 28 may be free of airfelt, as described in more detail below.
一般来讲，如从吸收芯28的顶侧面观察，可用于本发明的吸收芯28(参见下文)可由如下层的周边限定，该层由芯包裹物160内的吸收材料60形成。吸收芯28可采用各种形状，具体地显示所谓的“狗骨”或“沙漏”形状，其表现出沿其宽度朝芯的中部或“裆”区的渐缩。这样，吸收芯28在旨在置于吸收制品的裆区中的吸收芯28的区域中可具有相对窄的宽度。这可提供例如更好的穿着舒适性。因此，吸收芯28可在其最窄点处具有如下宽度(如沿横向测量的)：该宽度小于约100mm，90mm，80mm，70mm，60mm或甚至小于约50mm。吸收芯28也可为大致矩形的，见例如图5所示，但也可使用其它沉积区域，诸如“T”或“Y”或“沙漏”或“狗骨”形状(见例如图4)。In general, an absorbent core 28 useful in the present invention (see below) may be defined by a perimeter of a layer formed of absorbent material 60 within a core wrap 160 as viewed from the top side of the absorbent core 28 . The absorbent core 28 can take a variety of shapes, in particular exhibiting a so-called "dogbone" or "hourglass" shape which exhibits a taper along its width towards the central or "crotch" region of the core. As such, the absorbent core 28 may have a relatively narrow width in the region of the absorbent core 28 intended to be placed in the crotch region of the absorbent article. This can provide, for example, better wearing comfort. Accordingly, the absorbent core 28 may have a width at its narrowest point (as measured in the transverse direction) of less than about 100 mm, 90 mm, 80 mm, 70 mm, 60 mm, or even less than about 50 mm. The absorbent core 28 can also be generally rectangular, see eg FIG. 5, although other deposition regions such as "T" or "Y" or "hourglass" or "dogbone" shapes can be used (see eg FIG. 4).
现在将更详细地讨论吸收制品20的一些部件。Some components of the absorbent article 20 will now be discussed in greater detail.
“不含透气毡的”吸收芯28"Airfelt Free" Absorbent Core 28
本发明的吸收芯28可包括被包封在芯包裹物160内的吸收材料60。按吸收材料60的总重量计，吸收材料60可包括80％至100％的SAP，诸如SAP颗粒。出于评估SAP在吸收芯28中所占百分比的目的，芯包裹物160不被认为是吸收材料60。The absorbent core 28 of the present invention may include absorbent material 60 enclosed within a core wrap 160 . The absorbent material 60 may comprise 80% to 100% SAP, such as SAP particles, based on the total weight of the absorbent material 60 . The core wrap 160 is not considered absorbent material 60 for purposes of evaluating the percentage of SAP in the absorbent core 28 .
所谓“吸收材料”，是指具有至少一些吸收特性和/或液体保持特性的材料，诸如SAP、纤维素纤维以及一些经亲水性处理的合成纤维。通常，用于制备吸收芯的粘合剂不具有吸收特性，并且不被认为是吸收材料。SAP含量可为芯包裹物160内所包含的吸收材料60的重量的基本上高于80％，例如至少85％，至少90％，至少95％且甚至最高至并包括100％。相比于通常包括介于40-60％之间的SAP和介于40-60％之间的纤维素纤维的常规吸收芯，上述基本上高于80％SAP的SAP含量可提供相对薄型吸收芯28。本发明的吸收材料60可具体地包括小于10％重量百分比，或小于5％重量百分比的天然纤维和/或合成纤维，或甚至基本上不含天然纤维和/或合成纤维。吸收材料60可有利地包括极少纤维素纤维或不包括纤维素纤维，具体地按吸收芯28的重量计，吸收芯28可包括小于15％，10％，或5％的(透气毡)纤维素纤维，或甚至基本上不含纤维素纤维。此类吸收芯28可为相对薄型的，并且薄于常规透气毡芯。图1、图2和图3为包括“不含透气毡的”吸收芯28的吸收制品20的例证。By "absorbent material" is meant a material having at least some absorbent and/or liquid-retaining properties, such as SAP, cellulosic fibers, and some hydrophilically treated synthetic fibers. Typically, the binders used to make absorbent cores do not have absorbent properties and are not considered absorbent materials. The SAP content may be substantially greater than 80%, such as at least 85%, at least 90%, at least 95% and even up to and including 100%, by weight of the absorbent material 60 contained within the core wrap 160. Such a SAP content substantially higher than 80% SAP may provide a relatively thin absorbent core compared to conventional absorbent cores typically comprising between 40-60% SAP and between 40-60% cellulose fibers 28. The absorbent material 60 of the present invention may specifically comprise less than 10% by weight, or less than 5% by weight of natural and/or synthetic fibers, or even be substantially free of natural and/or synthetic fibers. The absorbent material 60 may advantageously comprise little or no cellulose fibers, specifically the absorbent core 28 may comprise less than 15%, 10%, or 5% (airfelt) fibers by weight of the absorbent core 28. cellulose fibers, or even substantially free of cellulose fibers. Such absorbent cores 28 can be relatively thin, and thinner than conventional airfelt cores. 1 , 2 and 3 are illustrations of an absorbent article 20 comprising an absorbent core 28 "without airfelt".
过去已提议过包含相对高量的SAP的具有各种吸收芯设计的“不含透气毡的”吸收芯28，参见例如US 5,599,335(Goldman)、EP1447066A1(Busam)、WO95/11652(Tanzer)、US2008/0312622A1(Hundorf)、和WO2012/052172(Van Malderen)。"Airfelt-free" absorbent cores 28 comprising relatively high amounts of SAP have been proposed in the past with various absorbent core designs, see e.g. /0312622A1 (Hundorf), and WO2012/052172 (Van Malderen).
本发明的吸收芯28可包括例如粘合剂以帮助将SAP固定在芯包裹物160内，并且/或者确保芯包裹物160的完整性，具体地当芯包裹物160由一个或多个基底制成时。芯包裹物160通常将比严格地在其内包含吸收材料60所需的区域延伸到更大区域上。The absorbent core 28 of the present invention may include, for example, adhesives to help secure the SAP within the core wrap 160, and/or ensure the integrity of the core wrap 160, particularly when the core wrap 160 is made of one or more substrates. Chengshi. The core wrap 160 will generally extend over a larger area than is strictly required to contain the absorbent material 60 therein.
芯包裹物core wrap
吸收材料60被包封在一个或多个基底中。Absorbent material 60 is encapsulated in one or more substrates.
芯包裹物160包括面向顶片24的顶侧面16和面向底片25的底侧面16。芯包裹物160可由围绕吸收材料60折叠的单个基底制成。芯包裹物160可由彼此附接的两个基底(一个主要提供顶侧面16并且另一个主要提供底侧面16’)制成，如图2示例性地所示。典型构型为所谓的C形包裹物和/或夹心包裹物。在C-包裹物中，如图6中示例性示出的，一个基底的纵向和/或横向边缘在另一个基底上方折叠以形成侧翼。然后这些翼片粘结到另一个基底的外表面，这通常通过利用粘合剂进行的粘结来进行。相比于夹心密封件，所谓的C形包裹物构造可提供有益效果，诸如在润湿加载状态下改善的耐破裂性。The core wrap 160 includes a top side 16 facing the topsheet 24 and a bottom side 16 facing the backsheet 25 . The core wrap 160 may be made from a single substrate folded around the absorbent material 60 . The core wrap 160 may be made of two substrates (one mainly providing the top side 16 and the other mainly providing the bottom side 16') attached to each other, as exemplarily shown in Fig. 2 . Typical configurations are so-called C-wraps and/or sandwich wraps. In a C-wrap, as exemplarily shown in Figure 6, the longitudinal and/or transverse edges of one substrate are folded over the other substrate to form wings. These flaps are then bonded to the outer surface of another substrate, usually by bonding with an adhesive. The so-called C-wrap configuration may provide benefits such as improved rupture resistance under wet loading compared to sandwich seals.
芯包裹物160可由适用于接收和容纳吸收材料60的任何材料形成。芯包裹物160可具体地由非织造幅材形成，诸如梳理非织造织物、纺粘非织造织物(“S”)或熔喷非织造织物(“M”)、以及任何这些材料的层合体。例如，熔纺聚丙烯非织造织物是合适的，具体地是具有层合幅材SMS、或SMMS或SSMMS结构并具有约5gsm至15gsm基重范围的那些熔纺聚丙烯非织造织物。合适的材料例如公开于US 7,744,576、US2011/0268932A1、US2011/0319848A1或US2011/0250413A1中。可使用由合成纤维提供的非织造材料，诸如聚乙烯(PE)、聚对苯二甲酸乙二酯(PET)，尤其是聚丙烯(PP)。The core wrap 160 may be formed from any material suitable for receiving and containing the absorbent material 60 . The core wrap 160 may specifically be formed from a nonwoven web, such as a carded nonwoven, a spunbond nonwoven ("S"), or a meltblown nonwoven ("M"), as well as laminates of any of these materials. For example, melt-spun polypropylene nonwovens are suitable, particularly those having a laminated web SMS, or SMMS or SSMMS structure and having a basis weight in the range of about 5 gsm to 15 gsm. Suitable materials are disclosed, for example, in US 7,744,576, US2011/0268932A1, US2011/0319848A1 or US2011/0250413A1. Nonwoven materials provided by synthetic fibers such as polyethylene (PE), polyethylene terephthalate (PET) and especially polypropylene (PP) may be used.
包括基本上不含吸收材料的区域26的“不含透气毡的”吸收芯28"Airfelt-free" absorbent core 28 comprising regions 26 substantially free of absorbent material
吸收芯28可包括由层的周边限定的吸收材料沉积区域8，该层由芯包裹物160内的吸收材料60形成。The absorbent core 28 may include an absorbent material deposition area 8 defined by the perimeter of the layer formed by the absorbent material 60 within the core wrap 160 .
吸收芯28可包括基本上不含吸收材料60的一个或多个基本上不含吸收材料的区域26，并且通过所述区域，芯包裹物160的顶侧面16的一部分由一个或多个芯包裹物粘结部27附接到芯包裹物160的底侧面16’的一部分，如图5和6所示。具体地，在这些区域中可不存在吸收材料60。在制造过程中可能出现的少量诸如具有吸收材料60的污染物不被认为是吸收材料60。该一个或多个基本上不含吸收材料的区域26可有利地由吸收材料60限定，这意味着一个或多个基本上不含吸收材料的区域26不延伸至吸收材料沉积区域8的任一边缘。The absorbent core 28 may include one or more substantially absorbent material-free regions 26 that are substantially free of absorbent material 60 and through which a portion of the top side 16 of the core wrap 160 is wrapped by the one or more cores. The material bond 27 is attached to a portion of the bottom side 16' of the core wrap 160, as shown in FIGS. 5 and 6 . Specifically, absorbent material 60 may be absent in these regions. Small amounts such as contamination with absorbent material 60 that may occur during the manufacturing process are not considered absorbent material 60 . The one or more substantially absorbent material-free regions 26 may advantageously be bounded by absorbent material 60, which means that the one or more substantially absorbent material-free regions 26 do not extend to any of the absorbent material deposition regions 8. edge.
如果基本上不含吸收材料的区域26延伸至吸收材料沉积区域8的任一边缘，则每个基本上不含吸收材料的区域26可在每个基本上不含吸收材料的区域26的任一侧上具有吸收材料60的区域。If the substantially absorbent material-free region 26 extends to either edge of the absorbent material-depositing region 8, each substantially absorbent material-free region 26 may be located at either side of each substantially absorbent material-free region 26. There are areas of absorbent material 60 on the sides.
吸收芯28可包括至少两个基本上不含吸收材料的区域26，它们对称地设置在吸收芯28的纵向轴线的两侧上，如图5所示。The absorbent core 28 may include at least two regions 26 substantially free of absorbent material disposed symmetrically on either side of the longitudinal axis of the absorbent core 28, as shown in FIG. 5 .
基本上不含吸收材料的区域26可为直的并且完全纵向取向并平行于纵向轴线，但也可为弯曲的或具有一个或多个弯曲部分。The region 26 substantially free of absorbent material may be straight and oriented entirely longitudinally and parallel to the longitudinal axis, but may also be curved or have one or more curved portions.
此外，为了降低液体身体流出物渗漏的风险，基本上不含吸收材料的区域26有利地不延伸直至吸收材料沉积区域8的任一边缘，并因此被吸收芯28的吸收材料沉积区域8围绕并完全被包纳在所述吸收材料沉积区域内。通常，基本上不含吸收材料的区域26和吸收材料沉积区域8的最近边缘之间的最小距离为至少5mm。Furthermore, in order to reduce the risk of leakage of liquid bodily exudates, the region 26 substantially free of absorbent material advantageously does not extend up to either edge of the absorbent material-deposited region 8 and is therefore surrounded by the absorbent material-deposited region 8 of the absorbent core 28 and is completely contained within the absorbent material deposition area. Typically, the minimum distance between the region 26 substantially free of absorbent material and the nearest edge of the absorbent material deposited region 8 is at least 5 mm.
已提议过包括本上不含吸收材料的区域26的“不含透气毡的”吸收芯28，参见例如欧洲专利申请12196341.7。"Airfelt-free" absorbent cores 28 comprising regions 26 essentially free of absorbent material have been proposed, see eg European patent application 12196341.7.
当吸收材料60吸收液体并开始溶胀时，吸收芯28中的沿一个或多个基本上不含吸收材料的区域26的一个或多个通道26’可开始形成。随着吸收芯28吸收更多液体，由一个或多个通道26’形成的吸收芯28内的凹入部将变得更深并且更易于被看见和触摸到。通道26’的形成也可用来指示吸收制品20已加载有液体身体流出物。芯包裹物粘结部27应当至少在吸收材料60吸收中等量的液体身体流出物的第一阶段期间保持基本上完整。As the absorbent material 60 absorbs liquid and begins to swell, one or more channels 26' in the absorbent core 28 along the one or more regions 26 that are substantially free of absorbent material may begin to form. As the absorbent core 28 absorbs more liquid, the recesses in the absorbent core 28 formed by the one or more channels 26' will become deeper and easier to see and touch. The formation of channel 26' can also be used to indicate that the absorbent article 20 has been loaded with liquid bodily exudates. The core wrap bond 27 should remain substantially intact at least during the first stage in which the absorbent material 60 absorbs moderate volumes of liquid bodily exudates.
如图7所示，当吸收材料溶胀时，芯包裹物粘结部27保持至少初始时附接在基本上不含吸收材料的区域26中。吸收芯28的其余部分中的吸收材料60在其吸收液体时溶胀，使得芯包裹物160因此沿包括芯包裹物粘结部27的基本上不含吸收材料的区域26形成通道26’。As shown in Figure 7, when the absorbent material swells, the core wrap bond 27 remains at least initially attached in the region 26 that is substantially free of absorbent material. The absorbent material 60 in the remainder of the absorbent core 28 swells as it absorbs liquid such that the core wrap 160 thus forms channels 26'
具有顶片/采集层层合体的吸收制品Absorbent article with topsheet/acquisition layer laminate
本发明提供了具有三维结构的顶片/采集层层合体245。The present invention provides a topsheet/acquisition layer laminate 245 having a three-dimensional structure.
适用于制备吸收制品20的工艺100可包括如下步骤：提供基本上连续地沿纵向延伸的液体可透过的顶片幅材240，顶片幅材240具有：第一表面和第二表面；基本上连续地沿纵向延伸的液体不可透过的底片幅材2555；和具有第一表面和第二表面的采集层52。当吸收制品20在使用时，顶片幅材240的第一表面将面朝穿着者的身体。顶片幅材240并且因此顶片24和采集层52包括纤维。The process 100 applicable to the preparation of an absorbent article 20 may comprise the steps of: providing a liquid permeable topsheet web 240 extending substantially continuously longitudinally, the topsheet web 240 having: a first surface and a second surface; a liquid impermeable backsheet web 2555 extending continuously in the machine direction; and an acquisition layer 52 having a first surface and a second surface. When the absorbent article 20 is in use, the first surface of the topsheet web 240 will face the wearer's body. The topsheet web 240 and thus the topsheet 24 and the acquisition layer 52 comprise fibers.
将顶片幅材240和采集层52以面对面关系对齐，使得顶片幅材240的第二表面接触采集层52的第一表面。顶片幅材240和采集层52可同时被机械地变形并组合在一起。顶片幅材240和采集层52被嵌套在一起，使得被形成在顶片幅材240中的大多数三维突出部与被形成在采集层52中的大多数三维突出部重合并贴合在一起，从而提供具有三维突出部250的顶片/采集层层合体幅材2450。这意味着顶片幅材240和采集层52两者可被机械地变形并同时组合在一起。三维突出部250从顶片/采集层层合体245的平面延伸。顶片/采集层层合体幅材2450具有包括采集层52的第二表面的第一表面。The topsheet web 240 and the acquisition layer 52 are aligned in face-to-face relationship such that the second surface of the topsheet web 240 contacts the first surface of the acquisition layer 52 . The topsheet web 240 and acquisition layer 52 can be mechanically deformed and brought together simultaneously. The topsheet web 240 and the acquisition layer 52 are nested together such that most of the three-dimensional protrusions formed in the topsheet web 240 coincide with and fit in most of the three-dimensional protrusions formed in the acquisition layer 52. Together, a topsheet/acquisition layer laminate web 2450 having three-dimensional protrusions 250 is thus provided. This means that both the topsheet web 240 and the acquisition layer 52 can be mechanically deformed and brought together at the same time. The three-dimensional protrusions 250 extend from the plane of the topsheet/acquisition layer laminate 245 . The topsheet/acquisition layer laminate web 2450 has a first surface that includes a second surface of the acquisition layer 52 .
底片幅材2555的一部分可接合到顶片/采集层层合体幅材2450的顶片幅材240的一部分，使得顶片/采集层层合体幅材2450的第一表面面朝底片幅材2555。A portion of the backsheet web 2555 may be joined to a portion of the topsheet web 240 of the topsheet/acquisition layer laminate web 2450 such that the first surface of the topsheet/acquisition layer laminate web 2450 faces toward the backsheet web 2555.
制备吸收制品20的工艺100可包括提供干法成网纤维结构或湿法成网纤维结构的步骤，如图8所示。The process 100 of making an absorbent article 20 may include the step of providing a dry-laid fibrous structure or a wet-laid fibrous structure, as shown in FIG. 8 .
如图8所示，顶片幅材240和采集层52可在第一辊211和第二辊212之间被机械地变形并组合起来以形成顶片/采集层层合体幅材2450。干法成网纤维结构的干法成网纤维540(如图8所示，由分配材料喂料机210提供)或湿法成网纤维结构可被沉积在顶片/采集层层合体幅材2450或底片幅材2555的第一表面上。As shown in FIG. 8 , the topsheet web 240 and the acquisition layer 52 may be mechanically deformed and combined between the first roll 211 and the second roll 212 to form a topsheet/acquisition layer laminate web 2450 . The dry-laid fibers 540 of the dry-laid fibrous structure (as shown in FIG. 8, provided by the distribution material feeder 210) or the wet-laid fibrous structure can be deposited on the topsheet/acquisition layer laminate web 2450 Or on the first surface of the backsheet web 2555.
底片幅材2555的一部分可接合到顶片/采集层层合体幅材2450的顶片幅材240的一部分，使得干法成网纤维结构或湿法成网纤维结构位于顶片/采集层层合体幅材2450和底片幅材2555之间。A portion of the backsheet web 2555 may be bonded to a portion of the topsheet web 240 of the topsheet/acquisition layer laminate web 2450 such that the dry-laid fibrous structure or the wet-laid fibrous structure is located on the topsheet/acquisition layer laminate web. Between the material 2450 and the backsheet web 2555.
干法成网纤维结构可包括干法成网纤维540。干法成网纤维结构可包括具有超吸收聚合物(SAP)和干法成网纤维的混合物。干法成网纤维可包括纤维内交联纤维素纤维。The dry-laid fibrous structure may include dry-laid fibers 540 . The dry-laid fibrous structure may comprise a mixture of superabsorbent polymer (SAP) and dry-laid fibers. Dry-laid fibers may include intrafiber crosslinked cellulosic fibers.
该工艺还可包括提供吸收芯28的步骤，该吸收芯包括吸收材料60。按吸收材料60的总重量计，吸收材料60可包括80％至100％的SAP，诸如SAP颗粒。The process may also include the step of providing an absorbent core 28 comprising absorbent material 60 . The absorbent material 60 may comprise 80% to 100% SAP, such as SAP particles, based on the total weight of the absorbent material 60 .
另一种类型的吸收材料可为基于包含酸性基团的交联单体的吸水性泡沫，参见例如EP 0 858 478 B1、WO 97/31971 Al、WO 99/44648 Al和WO 00/52087 Al。Another type of absorbent material may be water-absorbent foams based on crosslinked monomers comprising acid groups, see eg EP 0 858 478 B1, WO 97/31971 Al, WO 99/44648 Al and WO 00/52087 Al.
因此，顶片/采集层层合体245的第一表面可承载分配层54的材料或吸收芯28的吸收材料60。Thus, the first surface of the topsheet/acquisition layer laminate 245 can carry either the material of the distribution layer 54 or the absorbent material 60 of the absorbent core 28 .
该大多数三维突出部250可为顶片/采集层层合体幅材2450中的或顶片/采集层层合体245中的三维突出部250的多于50％或多于60％或多于70％或多于80％或多于90％或多于95％或多于98％。The majority of three-dimensional protrusions 250 may be more than 50% or more than 60% or more than 70% of the three-dimensional protrusions 250 in the topsheet/acquisition layer laminate web 2450 or in the topsheet/acquisition layer laminate 245. % or more than 80% or more than 90% or more than 95% or more than 98%.
吸收制品20可包括衬圈箍32。顶片/采集层层合体245的大多数三维突出部250可至少存在于其中顶片/采集层层合体245中的顶片24与采集层52重叠的区域中。另外，顶片/采集层层合体245的大多数三维突出部250也可存在于采集层52和顶片24中，存在于平行于吸收制品20的横向轴线90延伸的区域中。顶片/采集层层合体245的大多数三维突出部250可存在于平行于吸收制品20的纵向轴线80延伸但不延伸超过其中衬圈箍32附接到吸收制品20(具体地附接到顶片24)的区域的区域中，如图1所示。在所述情况下，被形成在顶片/采集层层合体245的顶片24中的大多数三维突出部250由顶片24的纤维形成。The absorbent article 20 can include a collar cuff 32 . Most of the three-dimensional protrusions 250 of the topsheet/acquisition layer laminate 245 may be present at least in areas where the topsheet 24 and the acquisition layer 52 in the topsheet/acquisition layer laminate 245 overlap. Additionally, most of the three-dimensional protrusions 250 of the topsheet/acquisition layer laminate 245 may also be present in the acquisition layer 52 and the topsheet 24, in regions extending parallel to the transverse axis 90 of the absorbent article 20. Most of the three-dimensional protrusions 250 of the topsheet/acquisition layer laminate 245 may exist extending parallel to the longitudinal axis 80 of the absorbent article 20 but not beyond where the collar cuffs 32 are attached to the absorbent article 20 (in particular to the topsheet). 24) in the region of the region, as shown in Figure 1. In this case, most of the three-dimensional protrusions 250 formed in the topsheet 24 of the topsheet/acquisition layer laminate 245 are formed from the fibers of the topsheet 24 .
另选地，顶片/采集层层合体245的大多数三维突出部250可存在于平行于吸收制品20的横向轴线90延伸使得包括顶片24的三维突出部的区域与采集层52重叠的区域中。顶片/采集层层合体245的大多数三维突出部250的区域的长度可比顶片/采集层层合体245的采集层52的长度宽5％至60％或10％至40％。顶片/采集层层合体245的大多数三维突出部可存在于平行于吸收制品20的纵向轴线80延伸使得包括顶片24的大多数三维突出部的区域与采集层52重叠的区域中。顶片/采集层层合体245的大多数三维突出部250的区域的宽度可比顶片/采集层层合体245的采集层52的宽度宽5％至60％或10％至40％。在所述情况下，被形成在顶片/采集层层合体245的顶片24中的大多数三维突出部250由顶片24的纤维形成。Alternatively, most of the three-dimensional protrusions 250 of the topsheet/acquisition layer laminate 245 may be present in areas extending parallel to the transverse axis 90 of the absorbent article 20 such that the area comprising the three-dimensional protrusions of the topsheet 24 overlaps the acquisition layer 52 middle. The length of the region of most three-dimensional protrusions 250 of the topsheet/acquisition layer laminate 245 may be 5% to 60% or 10% to 40% wider than the length of the acquisition layer 52 of the topsheet/acquisition layer laminate 245. The majority of the three-dimensional protrusions of the topsheet/acquisition layer laminate 245 may be present in regions extending parallel to the longitudinal axis 80 of the absorbent article 20 such that the region comprising the majority of the three-dimensional protrusions of the topsheet 24 overlaps the acquisition layer 52 . The width of the area of most three-dimensional protrusions 250 of the topsheet/acquisition layer laminate 245 may be 5% to 60% or 10% to 40% wider than the width of the acquisition layer 52 of the topsheet/acquisition layer laminate 245. In this case, most of the three-dimensional protrusions 250 formed in the topsheet 24 of the topsheet/acquisition layer laminate 245 are formed from the fibers of the topsheet 24 .
在另一种替代形式中，顶片/采集层层合体245的大多数三维突出部250可仅存在于其中顶片/采集层层合体245中的顶片24与采集层52重叠的位置，如图4所示。In another alternative, most of the three-dimensional protrusions 250 of the topsheet/acquisition layer laminate 245 may only exist where the topsheet 24 in the topsheet/acquisition layer laminate 245 overlaps the acquisition layer 52, such as Figure 4 shows.
因此，大多数三维突出部250可提供深度印象并且可支持看护者的感知，吸收制品20能够很好地吸收液体身体流出物。Thus, most of the three-dimensional protrusions 250 can provide the impression of depth and can support the caregiver's perception that the absorbent article 20 is able to absorb liquid bodily exudates well.
根据如下所述的“突出部高度测试方法”，顶片/采集层层合体245的大多数三维突出部250可具有0.3mm至5mm或0.5mm至3mm或1.0mm至2.0mm的测量的突出部高度。Most of the three-dimensional protrusions 250 of the topsheet/acquisition layer laminate 245 may have a measured protrusion of 0.3mm to 5mm or 0.5mm to 3mm or 1.0mm to 2.0mm according to the "Protrusion Height Test Method" as described below high.
根据如下所述的“突出部基座宽度测试方法”，顶片/采集层层合体245的大多数三维突出部250可具有0.3mm至10mm或0.5mm至5mm或0.5mm至3.0mm或1.0mm至2.5mm或1.5mm至2.5mm的三维突出部250的测量的突出部基座宽度。Most of the three-dimensional protrusions 250 of the topsheet/acquisition layer laminate 245 may have a thickness of 0.3 mm to 10 mm or 0.5 mm to 5 mm or 0.5 mm to 3.0 mm or 1.0 mm according to the "Protrusion Base Width Test Method" described below. A measured protrusion base width of the three-dimensional protrusion 250 to 2.5 mm or from 1.5 mm to 2.5 mm.
具有包括特定高度和宽度的形状的大多数三维突出部250可提供深度印象并且可支持看护者的感知，吸收制品20能够很好地吸收液体身体流出物。Most of the three-dimensional protrusions 250 having a shape including a specific height and width can provide the impression of depth and can support the caregiver's perception that the absorbent article 20 is able to absorb liquid bodily exudates well.
这些三维突出部250提供空隙体积，以接收液体身体流出物。同时，顶片/采集层层合体245中的顶片24和采集层52可紧密接触，因为顶片24和采集层52被嵌套在一起。另外，顶片/采集层层合体245还紧密接触下面层即分配层54。因此，液体身体流出物被更有效地从顶片/采集层层合体245传输至分配层54，这改善了顶片/采集层层合体245的顶片24的干燥度。穿着者皮肤处的回渗被减少。顶片/采集层层合体245也可允许更有效地使用吸收芯28。总体上讲，顶片/采集层层合体245的顶片24可相对于被放置在采集层52的顶部上的三维顶片24具有改善的干燥度。These three-dimensional protrusions 250 provide void volume to receive liquid bodily exudates. At the same time, the topsheet 24 and the acquisition layer 52 in the topsheet/acquisition layer laminate 245 can be in intimate contact because the topsheet 24 and the acquisition layer 52 are nested together. Additionally, the topsheet/acquisition layer laminate 245 is also in intimate contact with the underlying layer, distribution layer 54 . Accordingly, liquid body exudates are more efficiently transported from the topsheet/acquisition layer laminate 245 to the distribution layer 54, which improves the dryness of the topsheet 24 of the topsheet/acquisition layer laminate 245. Rewet at the wearer's skin is reduced. The topsheet/acquisition layer laminate 245 may also allow for more efficient use of the absorbent core 28. In general, the topsheet 24 of the topsheet/acquisition layer laminate 245 may have improved dryness relative to the three-dimensional topsheet 24 placed on top of the acquisition layer 52 .
大多数三维突出部250可包括不接触穿着者的皮肤的空隙区域253。相比于平坦顶片，吸收制品20可较少接触穿着者皮肤。顶片/采集层层合体245的空隙区域253可帮助空气在穿着者皮肤和顶片/采集层层合体245之间渗透。因此，顶片/采集层层合体245的空隙区域253可改善顶片/采集层层合体245的透气性。Most three-dimensional protrusions 250 may include void regions 253 that do not contact the wearer's skin. The absorbent article 20 may contact the wearer's skin less than a flat topsheet. The void area 253 of the topsheet/acquisition layer laminate 245 can assist in the penetration of air between the wearer's skin and the topsheet/acquisition layer laminate 245 . Thus, the void region 253 of the topsheet/acquisition layer laminate 245 can improve the breathability of the topsheet/acquisition layer laminate 245 .
除了改善干燥度之外，顶片/采集层层合体245的空隙区域253也可允许粪便被吸收和采集在空隙区域内。在所述情况下，本发明适于吸收相对低粘度的粪便。In addition to improving dryness, the void area 253 of the topsheet/acquisition layer laminate 245 may also allow feces to be absorbed and acquired within the void area. In such cases, the invention is suitable for absorbing faeces of relatively low viscosity.
顶片/采集层层合体245中的顶片24和采集层52可彼此紧密接触。The topsheet 24 and the acquisition layer 52 in the topsheet/acquisition layer laminate 245 can be in intimate contact with each other.
采集层52在平行于横向轴线90的方向上的宽度小于顶片24在平行于横向轴线90的方向上的宽度。如果顶片24和采集层52的宽度相同，则可能在衬圈箍32的下面发生液体身体流出物的芯吸。因此，液体身体流出物可能不被吸收芯28适当地吸收，这导致液体身体流出物渗漏出吸收制品20。如果采集层52的宽度小于顶片24在横向上的宽度，则采集层52(其可从顶片24接收液体身体流出物)可直接将液体身体流出物传输至分配层54以便随后被吸收芯28吸收。因此，暂时被存储在顶片/采集层层合体245的采集层52中的液体身体流出物将不容易通过毛细作用力朝衬圈箍32抽吸并抽吸到所述衬圈箍的下面。因此通过使采集层52的宽度小于顶片/采集层层合体245中的顶片24在平行于横向轴线90的方向上的宽度，可减少渗漏。The width of the acquisition layer 52 in a direction parallel to the transverse axis 90 is less than the width of the topsheet 24 in a direction parallel to the transverse axis 90 . If the width of the topsheet 24 and the acquisition layer 52 are the same, wicking of liquid bodily exudates under the collar cuff 32 may occur. As a result, liquid bodily exudates may not be properly absorbed by the absorbent core 28 , which causes the liquid bodily exudates to leak out of the absorbent article 20 . If the width of the acquisition layer 52 is less than the width of the topsheet 24 in the transverse direction, the acquisition layer 52 (which can receive liquid body exudates from the topsheet 24) can directly transfer the liquid body exudates to the distribution layer 54 for subsequent absorption by the absorbent core. 28 absorption. Accordingly, liquid bodily exudates that are temporarily stored in the acquisition layer 52 of the topsheet/acquisition layer laminate 245 will not be easily drawn by capillary forces towards and beneath the collar cuff 32. Thus by having the acquisition layer 52 have a width that is less than the width of the topsheet 24 in the topsheet/acquisition layer laminate 245 in a direction parallel to the transverse axis 90, leakage can be reduced.
为了帮助减少渗漏和回渗，顶片/采集层层合体245的采集层52的宽度可不比分配层54的宽度宽多于40％和/或不比吸收芯28在平行于横向轴线90的方向上的宽度宽多于20％。在所述情况下，液体身体流出物可不在采集层的横向边缘积聚或相邻于采集层的横向边缘积聚。这防止了液体身体流出物芯吸到衬圈箍32的下面。实际上，当顶片/采集层层合体245的采集层52比吸收芯28的宽度宽不多于20％时，液体身体流出物可被容易地传输到吸收芯28中，这可有效地将流体从采集层52抽吸到吸收芯28中。这防止了液体身体流出物从采集层52芯吸到衬圈箍32的下面。To help reduce leakage and rewet, the width of the acquisition layer 52 of the topsheet/acquisition layer laminate 245 may be no more than 40% wider than the width of the distribution layer 54 and/or no wider than the absorbent core 28 in a direction parallel to the transverse axis 90. The upper width is more than 20% wider. In such cases, the liquid bodily exudates may not accumulate at or adjacent to the lateral edges of the acquisition layer. This prevents liquid bodily exudates from wicking underneath the collar hoop 32 . In fact, when the acquisition layer 52 of the topsheet/acquisition layer laminate 245 is no more than 20% wider than the width of the absorbent core 28, liquid body exudates can be easily transported into the absorbent core 28, which effectively Fluid is drawn from the acquisition layer 52 into the absorbent core 28 . This prevents liquid bodily exudates from wicking from the acquisition layer 52 to the underside of the grommet hoop 32 .
采集层52可接收穿过顶片24的液体身体流出物，并且可将它们分配至下面的吸收层。在这种情况下，顶片/采集层层合体245中的顶片24可具有比采集层52弱的亲水性。顶片/采集层层合体245的顶片24可被容易地脱水。The acquisition layer 52 can receive liquid bodily exudates through the topsheet 24 and distribute them to the underlying absorbent layer. In such cases, the topsheet 24 in the topsheet/acquisition layer laminate 245 may be less hydrophilic than the acquisition layer 52 . The topsheet 24 of the topsheet/acquisition layer laminate 245 can be easily dewatered.
为了增强顶片/采集层层合体245的顶片24的脱水，可减小采集层52的孔隙尺寸。为此，采集层52可由具有相对小旦尼尔的纤维制成。采集层52也可具有增大的密度。To enhance dehydration of the topsheet 24 of the topsheet/acquisition layer laminate 245, the pore size of the acquisition layer 52 can be reduced. To this end, the acquisition layer 52 may be made of fibers having a relatively small denier. Acquisition layer 52 may also have an increased density.
这种适用于制备吸收制品20的工艺可包括如下步骤：在横向上在顶片/采集层层合体幅材2450的第一表面的横向边缘处处或相邻于顶片/采集层层合体幅材2450的第一表面的横向边缘将底片幅材2555的一部分接合到顶片幅材240。顶片/采集层层合体幅材2450的第一表面的横向边缘不包括任何采集层52。当底片幅材2555的部分接合到顶片/采集层层合体幅材2450的顶片幅材240的部分时，采集层52因而被包封在顶片幅材240和底片幅材2555之间。This process applicable to the preparation of the absorbent article 20 may include the steps of: at or adjacent to the topsheet/acquisition layer laminate web at the transverse edge of the first surface of the topsheet/acquisition layer laminate web 2450 in the transverse direction The transverse edges of the first surface of 2450 join a portion of the backsheet web 2555 to the topsheet web 240. The transverse edges of the first surface of the topsheet/acquisition layer laminate web 2450 do not include any acquisition layer 52 . When the portion of the backsheet web 2555 is joined to the portion of the topsheet web 240 of the topsheet/acquisition layer laminate web 2450, the acquisition layer 52 is thus encapsulated between the topsheet web 240 and the backsheet web 2555.
该工艺可包括切割成单个吸收制品的步骤，该吸收制品包括底片25、顶片24和采集层52，其特征在于顶片24和采集层52被接合以形成顶片/采集层层合体245。The process may include the step of cutting into individual absorbent articles comprising the backsheet 25, the topsheet 24 and the acquisition layer 52, characterized in that the topsheet 24 and the acquisition layer 52 are joined to form a topsheet/acquisition layer laminate 245.
顶片/采集层层合体幅材2450可在工艺设置中的特定位置处制备。因此，顶片/采集层层合体幅材2450可能不能够用于在工艺的期望的位置处承载分配层54的干法成网纤维结构的干法成网纤维540。The topsheet/acquisition layer laminate web 2450 can be produced at a specific location in the process setup. Accordingly, the topsheet/acquisition layer laminate web 2450 may not be capable of being used to carry the drylaid fibers 540 of the drylaid fibrous structure of the distribution layer 54 at the desired location in the process.
一种适用于制备吸收制品的工艺可包括如下步骤：提供基本上连续地沿纵向延伸的液体可透过的顶片幅材240，顶片幅材240具有：第一表面和第二表面；基本上连续地沿纵向延伸的液体不可透过的底片幅材2555；具有第一表面和第二表面的采集层52；干法成网纤维结构；和具有第一表面171和第二表面172的载体层幅材170，如图9和10所示。顶片幅材240和采集层52包括纤维。A process applicable to the preparation of absorbent articles may comprise the steps of: providing a liquid-permeable topsheet web 240 extending substantially continuously in the longitudinal direction, the topsheet web 240 having: a first surface and a second surface; A liquid-impermeable backsheet web 2555 continuously extending longitudinally; an acquisition layer 52 having a first surface and a second surface; a dry-laid fibrous structure; and a carrier having a first surface 171 and a second surface 172 Layer web 170, as shown in FIGS. 9 and 10 . The topsheet web 240 and the acquisition layer 52 include fibers.
顶片幅材240和采集层52与采集层52以面对面关系对齐，使得顶片幅材240的第二表面接触采集层52的第一表面。顶片幅材240和采集层52可同时被机械地变形并组合在一起。顶片24和采集层52被嵌套在一起，使得被形成在顶片24中的大多数三维突出部与被形成在采集层52中的大多数三维突出部重合并贴合在一起，从而提供具有三维突出部250的顶片/采集层层合体245。采集层52的宽度小于顶片24在横向上的宽度。顶片/采集层层合体245具有包括采集层52的第二表面的第一表面。The topsheet web 240 and acquisition layer 52 are aligned in face-to-face relationship with the acquisition layer 52 such that the second surface of the topsheet web 240 contacts the first surface of the acquisition layer 52 . The topsheet web 240 and acquisition layer 52 can be mechanically deformed and brought together simultaneously. The topsheet 24 and acquisition layer 52 are nested together such that most of the three-dimensional protrusions formed in the topsheet 24 coincide and fit together with most of the three-dimensional protrusions formed in the acquisition layer 52, thereby providing Topsheet/acquisition layer laminate 245 with three-dimensional protrusions 250. The width of the acquisition layer 52 is less than the width of the topsheet 24 in the transverse direction. The topsheet/acquisition layer laminate 245 has a first surface that includes the second surface of the acquisition layer 52 .
可将干法成网纤维结构的干法成网纤维540沉积在载体层幅材170的第一表面171上，如图9和10所示。底片幅材2555的一部分可接合到顶片/采集层层合体幅材2450的顶片幅材240的一部分，使得载体层幅材170的第二表面172面向顶片/采集层层合体幅材2450或底片幅材2555。The dry-laid fibers 540 of the dry-laid fibrous structure may be deposited on the first surface 171 of the carrier layer web 170 as shown in FIGS. 9 and 10 . A portion of the backsheet web 2555 may be joined to a portion of the topsheet web 240 of the topsheet/acquisition layer laminate web 2450 such that the second surface 172 of the carrier layer web 170 faces the topsheet/acquisition layer laminate web 2450 or Negative web 2555.
因此，在所述工艺中，无论在何处制备和提供顶片/采集层层合体幅材2450，载体层幅材170均可在那里承载分配层54的材料。Thus, wherever the topsheet/acquisition layer laminate web 2450 is prepared and provided in the process, the carrier layer web 170 can carry the material of the distribution layer 54 there.
根据用于制备顶片/采集层层合体幅材2450的三维结构的方法，当顶片幅材240和采集层52被一起机械地变形时，可能无意地产生洞。当分配层54包括干法成网纤维结构时，干法成网纤维结构的干法成网纤维540可穿过在所得顶片/采集层层合体245处形成的无意的洞，并且不可取地接触穿着者的皮肤。期望防止干法成网纤维结构的干法成网纤维540穿过所得顶片/采集层层合体245的无意的洞。Depending on the method used to prepare the three-dimensional structure of the topsheet/acquisition layer laminate web 2450, holes may be inadvertently created when the topsheet web 240 and acquisition layer 52 are mechanically deformed together. When the distribution layer 54 comprises a dry-laid fibrous structure, the dry-laid fibers 540 of the dry-laid fibrous structure can pass through unintentional holes formed at the resulting topsheet/acquisition layer laminate 245, and undesirably contact with the wearer's skin. It is desirable to prevent the dry-laid fibers 540 of the dry-laid fibrous structure from passing through inadvertent holes in the resulting topsheet/acquisition layer laminate 245 .
载体层幅材170可设置在顶片/采集层层合体幅材2450和干法成网纤维结构之间，如图9所示。在吸收制品20中，载体层17可充当阻挡层以阻止干法成网纤维结构的干法成网纤维540穿过顶片/采集层层合体245的洞，该洞由顶片24与采集层52的三维机械变形无意地形成，如图11和12(A-B)所示。另外，载体层17还可帮助将液体身体流出物从顶片/采集层层合体245转移至干法成网纤维结构。The carrier layer web 170 may be disposed between the topsheet/acquisition layer laminate web 2450 and the dry-laid fibrous structure, as shown in FIG. 9 . In the absorbent article 20, the carrier layer 17 can act as a barrier layer to prevent the drylaid fibers 540 of the drylaid fibrous structure from passing through the holes of the topsheet/acquisition layer laminate 245 formed by the topsheet 24 and the acquisition layer. The three-dimensional mechanical deformation of 52 is formed unintentionally, as shown in FIGS. 11 and 12 (A-B). Additionally, the carrier layer 17 can also assist in the transfer of liquid bodily exudates from the topsheet/acquisition layer laminate 245 to the drylaid fibrous structure.
吸收制品20中的载体层17的第一表面171可在其纵向边缘处或相邻于其纵向边缘而附接到吸收芯28。因此，当载体层17被设置在顶片/采集层层合体245和干法成网纤维结构之间并且载体层17的第一表面171附接到吸收芯28时，干法成网纤维结构的干法成网纤维540可能不能够在载体层17和吸收芯28之间逸出，如图12B所举例说明的。载体层17对吸收芯28的纵向边缘的附接可包括均匀连续的粘合剂层173、粘合剂的不连续的图案化施加或一系列独立粘合剂线、粘合剂螺旋线或粘合剂点。The first surface 171 of the carrier layer 17 in the absorbent article 20 may be attached to the absorbent core 28 at or adjacent to its longitudinal edges. Thus, when the carrier layer 17 is disposed between the topsheet/acquisition layer laminate 245 and the dry-laid fibrous structure and the first surface 171 of the carrier layer 17 is attached to the absorbent core 28, the dry-laid fibrous structure Dry-laid fibers 540 may not be able to escape between the carrier layer 17 and the absorbent core 28, as illustrated in Figure 12B. The attachment of the carrier layer 17 to the longitudinal edges of the absorbent core 28 may comprise a uniform continuous layer of adhesive 173, a discrete patterned application of adhesive or a series of individual lines, spirals or adhesive lines of adhesive. Mixture point.
另选地，载体层幅材170可设置在干法成网纤维结构和吸收芯28之间，如图10所示。因此，吸收制品20中的载体层17可帮助将液体身体流出物从分配层54分配并转移至吸收芯28，如图13和14所示，这允许更有效地利用吸收芯28。Alternatively, a carrier layer web 170 may be disposed between the dry-laid fibrous structure and the absorbent core 28 as shown in FIG. 10 . Thus, the carrier layer 17 in the absorbent article 20 can help distribute and transfer liquid bodily exudates from the distribution layer 54 to the absorbent core 28, as shown in Figures 13 and 14, which allows more efficient use of the absorbent core 28.
载体层17可在其纵向边缘处或相邻于其纵向边缘而附接到顶片/采集层层合体245的第一表面。因此，当载体层17被设置在干法成网纤维结构和吸收芯28之间并且载体层17附接到顶片/采集层层合体245的第一表面时，干法成网纤维结构的干法成网纤维540可能不能够在顶片/采集层层合体245和载体层17之间逸出。载体层17对顶片/采集层层合体245的第一表面的纵向边缘的附接可包括均匀连续的粘合剂层、粘合剂的不连续的图案化施加或一系列独立粘合剂线、粘合剂螺旋线或粘合剂点。The carrier layer 17 may be attached to the first surface of the topsheet/acquisition layer laminate 245 at or adjacent to its longitudinal edges. Thus, when the carrier layer 17 is disposed between the dry-laid fibrous structure and the absorbent core 28 and the carrier layer 17 is attached to the first surface of the topsheet/acquisition layer laminate 245, the dry-laid fibrous structure of the dry-laid fibrous structure The web-forming fibers 540 may not be able to escape between the topsheet/acquisition layer laminate 245 and the carrier layer 17 . The attachment of the carrier layer 17 to the longitudinal edges of the first surface of the topsheet/acquisition layer laminate 245 may comprise a uniform continuous layer of adhesive, a discrete patterned application of adhesive, or a series of individual lines of adhesive. , Adhesive Helix Or Adhesive Dots.
该工艺可包括切割成单个吸收制品20的步骤，该吸收制品包括底片25、载体层17、顶片24和采集层52，其特征在于顶片24和采集层52被接合以形成顶片/采集层层合体245。The process may include the step of cutting into individual absorbent articles 20 comprising a backsheet 25, a carrier layer 17, a topsheet 24 and an acquisition layer 52, characterized in that the topsheet 24 and the acquisition layer 52 are joined to form the topsheet/acquisition layer laminate 245 .
顶片/采集层层合体幅材2450的采集层52可沿纵向连续地设置。顶片/采集层层合体245的采集层52在平行于纵向轴线80的方向上的长度可等于顶片24在平行于纵向轴线80的方向上的长度。The acquisition layer 52 of the topsheet/acquisition layer laminate web 2450 can be disposed continuously in the machine direction. The length of the acquisition layer 52 of the topsheet/acquisition layer laminate 245 in a direction parallel to the longitudinal axis 80 may be equal to the length of the topsheet 24 in a direction parallel to the longitudinal axis 80 .
另选地，顶片/采集层层合体幅材2450的采集层52可沿纵向间断地设置。顶片/采集层层合体245的采集层52在平行于纵向轴线80的方向上的长度可小于顶片24在平行于纵向轴线80的方向上的长度，如图1所示。当顶片/采集层层合体245中的采集层52的长度小于顶片24的长度时，液体身体流出物不能够被容易地朝吸收制品20的纵向边缘10,12抽吸，这减少了渗漏。Alternatively, the acquisition layer 52 of the topsheet/acquisition layer laminate web 2450 may be discontinuously disposed in the machine direction. The length of the acquisition layer 52 of the topsheet/acquisition layer laminate 245 in a direction parallel to the longitudinal axis 80 may be less than the length of the topsheet 24 in a direction parallel to the longitudinal axis 80 , as shown in FIG. 1 . When the length of the acquisition layer 52 in the topsheet/acquisition layer laminate 245 is less than the length of the topsheet 24, liquid body exudates cannot be easily drawn towards the longitudinal edges 10, 12 of the absorbent article 20, which reduces the leakage. leak.
顶片/采集层层合体245的采集层52可被定位在吸收制品20的前区36中并且至少部分地定位在裆区37中，如图15所示。在所述情况下，将顶片/采集层层合体245的采集层52定位在吸收制品20的前区36中有助于围绕穿着者的尿点采集和分配液体身体流出物诸如尿液。The acquisition layer 52 of the topsheet/acquisition layer laminate 245 can be positioned in the front region 36 of the absorbent article 20 and at least partially in the crotch region 37, as shown in FIG. 15 . In such cases, positioning the acquisition layer 52 of the topsheet/acquisition layer laminate 245 in the front region 36 of the absorbent article 20 facilitates the acquisition and distribution of liquid bodily exudates, such as urine, around the wearer's urine spot.
顶片/采集层层合体245的采集层52可被定位在吸收制品20的后区38中并且至少部分地定位在裆区37中，如图16所示。将顶片/采集层层合体245的采集层52定位在吸收制品20的后区38中有助于采集穿着者的粪便，尤其是当粪便具有低粘度时。The acquisition layer 52 of the topsheet/acquisition layer laminate 245 can be positioned in the back region 38 of the absorbent article 20 and at least partially in the crotch region 37, as shown in FIG. 16 . Positioning the acquisition layer 52 of the topsheet/acquisition layer laminate 245 in the rear region 38 of the absorbent article 20 facilitates acquisition of the wearer's stool, especially when the stool has a low viscosity.
当吸收制品在使用时，顶片/采集层层合体245的大多数三维突出部250可朝底片25或朝穿着者的身体突出。Most of the three-dimensional protrusions 250 of the topsheet/acquisition layer laminate 245 may protrude toward the backsheet 25 or toward the wearer's body when the absorbent article is in use.
大多数三维突出部250可联合形成一个或多个图形。具有图形可支持看护者的感知，该吸收制品能够很好地吸收液体身体流出物。Most of the three-dimensional protrusions 250 may combine to form one or more figures. Having graphics can support the caregiver's perception that the absorbent article absorbs liquid body exudates well.
另外，大多数三维突出部250还可联合形成一个或多个图形诸如徽标，例如Pampers Heart徽标。Additionally, most of the three-dimensional protrusions 250 may also combine to form one or more graphics such as a logo, eg, the Pampers Heart logo.
顶片/采集层层合体245可被假想地分成第一区域和第二区域。第一区域可包括朝底片25突出的三维突出部250。第二区域可包括当吸收制品在使用时朝穿着者的身体突出的三维突出部250。The topsheet/acquisition layer laminate 245 can be hypothetically divided into a first region and a second region. The first region may include a three-dimensional protrusion 250 protruding toward the backsheet 25 . The second region may comprise a three-dimensional protrusion 250 that protrudes towards the wearer's body when the absorbent article is in use.
例如，第一区域可被定位在吸收制品20的前区36中并且至少部分地定位在裆区37中。For example, the first region may be positioned in the front region 36 and at least partially in the crotch region 37 of the absorbent article 20 .
通过具有第一区域，其中顶片/采集层层合体245的三维突出部250朝底片25突出可帮助采集液体身体流出物并将液体身体流出物吸收至吸收芯28。通过具有第二区域，其中当吸收制品在使用时顶片/采集层层合体245的三维突出部250朝穿着者的身体突出可改善身体不受所述流出物污染的效果。因此，第一区域和第二区域的组合可允许吸收制品20更好地发挥作用。By having a first region where the three-dimensional protrusions 250 of the topsheet/acquisition layer laminate 245 protrude toward the backsheet 25 can aid in the acquisition and absorption of liquid bodily exudates into the absorbent core 28 . By having a second region where the three-dimensional protrusions 250 of the topsheet/acquisition layer laminate 245 protrude towards the wearer's body when the absorbent article is in use improves the body's protection from said exudates. Thus, the combination of the first region and the second region may allow the absorbent article 20 to function better.
顶片/采集层层合体245的顶片24可涂覆有洗剂组合物。洗剂组合物可位于介于顶片/采集层层合体245的三维突出部250之间的顶片24的区域中。The topsheet 24 of the topsheet/acquisition layer laminate 245 may be coated with a lotion composition. The lotion composition may be located in the region of the topsheet 24 between the three-dimensional protrusions 250 of the topsheet/acquisition layer laminate 245 .
用于尿布的典型洗剂组合物公开于美国专利6,426,444B2中。所得洗剂组合物可通过如下方式施加到顶片/采集层层合体：喷涂、印刷(例如，柔性版印刷)、涂布(例如，接触槽式涂布、凹版涂布)、挤出、微胶囊化或这些施加技术的组合。A typical lotion composition for use in diapers is disclosed in US Patent 6,426,444 B2. The resulting lotion composition can be applied to the topsheet/acquisition layer laminate by spraying, printing (e.g., flexographic printing), coating (e.g., contact slot coating, gravure coating), extrusion, microencapsulation chemical or a combination of these application techniques.
该大多数三维突出部250可以任何合适的布置结构被设置在顶片/采集层层合体245的整个平面上。合适的布置结构包括但不限于：交错布置结构、和区。在一些情况下，顶片/采集层层合体245可包括三维突出部250和本领域已知的其它特征部(诸如压花部和孔)两者。三维突出部250和其它特征部可处在独立区中，可混杂或重叠。混杂布置结构可以任何合适的方式产生。在一些情况下，混杂布置结构可通过使用美国专利公布US 2012/0064298 A1(Orr等人)中所述的技术来产生。在其它情况下，重叠的布置结构可通过如下方式产生：形成三维突出部250，随后使顶片/采集层层合体2450从其上具有凸成形元件的成形构件和柔顺表面之间穿过，并且利用成形构件和柔顺表面向幅材施加压力。这些用于产生重叠的布置结构的技术允许三维突出部250和其它特征部组合起来，因此它们被设置在顶片/采集层层合体245上的不同位置中，或者它们可致使三维突出部250中的至少一些三维突出部和所述其它特征部(孔、压花部)中的至少一些特征部被设置在顶片/采集层层合体245上的相同位置中。The majority of three-dimensional protrusions 250 may be disposed across the entire plane of the topsheet/acquisition layer laminate 245 in any suitable arrangement. Suitable arrangements include, but are not limited to: staggered arrangements, and zones. In some cases, the topsheet/acquisition layer laminate 245 may include both three-dimensional protrusions 250 and other features known in the art, such as embossing and apertures. The three-dimensional protrusions 250 and other features may be in separate regions, intermingled or overlapping. The hybrid arrangement may be created in any suitable manner. In some cases, hybrid arrangements can be created using techniques described in US Patent Publication US 2012/0064298 Al (Orr et al.). In other cases, the overlapping arrangement can be produced by forming the three-dimensional protrusion 250, then passing the topsheet/acquisition layer laminate 2450 between the forming member and the compliant surface having the convex forming elements thereon, and Pressure is applied to the web using a forming member and a compliant surface. These techniques for creating overlapping arrangements allow the three-dimensional protrusions 250 and other features to be combined so they are disposed in different locations on the topsheet/acquisition layer laminate 245, or they can cause the three-dimensional protrusions 250 to At least some of the three-dimensional protrusions and at least some of the other features (holes, embossings) of ® are disposed in the same location on the topsheet/acquisition layer laminate 245.
载体层carrier layer
载体层17可选自由以下各项组成的组：非织造材料、薄纸、或膜、以及它们的组合。The carrier layer 17 may be selected from the group consisting of nonwoven materials, tissues, or films, and combinations thereof.
用于载体层17的非织造幅材的示例可包括各种类型的已知非织造幅材，诸如纺粘非织造幅材、熔喷非织造幅材、纺粘-熔喷-纺粘非织造幅材。这些非织造幅材由热塑性聚合物制成。Examples of nonwoven webs for the carrier layer 17 may include various types of known nonwoven webs such as spunbond nonwoven webs, meltblown nonwoven webs, spunbond-meltblown-spunbond nonwovens web. These nonwoven webs are made from thermoplastic polymers.
用于构成用于载体层17的非织造幅材的纤维的材料可包括各种类型的已知纤维，诸如聚乙烯、聚丙烯、聚酯、和丙烯酰基共轭纤维诸如聚乙烯/聚丙烯、聚乙烯/聚对苯二甲酸乙二酯、和聚丙烯/聚对苯二甲酸乙二酯，即由芯皮型纤维和并列型纤维形成的纤维。纤维可单独使用或以组合方式使用。另外，载体层17还可具有单层结构或多层结构。The materials used to make up the fibers of the nonwoven web used for the carrier layer 17 may include various types of known fibers such as polyethylene, polypropylene, polyester, and acryl conjugate fibers such as polyethylene/polypropylene, Polyethylene/polyethylene terephthalate, and polypropylene/polyethylene terephthalate, that is, fibers formed of core-sheath fibers and side-by-side fibers. Fibers can be used alone or in combination. In addition, the carrier layer 17 may also have a single-layer structure or a multi-layer structure.
载体层17可包括由湿法成网纤维制成的薄纸，该湿法成网纤维包括具有根据“湿破裂强度测试方法”的50g至500g的“湿破裂强度”的纤维素纤维、以及它们的组合。The carrier layer 17 may comprise tissue paper made of wet-laid fibers including cellulose fibers having a "Wet Burst Strength" according to the "Wet Burst Strength Test Method" of 50 g to 500 g, and their The combination.
载体层17可经表面活性剂处理以使载体层17成为亲水性的。载体层17可由如上所述组中的一种材料制成，所述材料已被化学改性以使其成为亲水性的。亲水性载体层17可因此改善液体身体流出物从分配层54向吸收制品20的吸收芯28的转移。The carrier layer 17 may be treated with a surfactant to render the carrier layer 17 hydrophilic. The carrier layer 17 may be made of a material from the group described above which has been chemically modified to render it hydrophilic. The hydrophilic carrier layer 17 can thus improve the transfer of liquid bodily exudates from the distribution layer 54 to the absorbent core 28 of the absorbent article 20 .
载体层17可具有至少5gsm至60gsm或至少5gsm至20gsm或至少5gsm至15gsm的基重。The carrier layer 17 may have a basis weight of at least 5 gsm to 60 gsm, or at least 5 gsm to 20 gsm, or at least 5 gsm to 15 gsm.
载体层17可为着色的。可通过颜料着色向载体层17赋予颜色。术语“颜料着色”包括适用于向载体层17赋予非白色颜色的任何颜料。因此该术语不包括“白色”颜料诸如TiO2，该颜料通常被加入到常规吸收制品的层中以赋予它们白色外观。颜料在施用时通常分散在载色体或基底中，例如如施用在墨水、油漆、塑料或其它聚合材料中那样。The carrier layer 17 may be colored. Color can be imparted to the carrier layer 17 by pigmentation. The term "pigmented" includes any pigment suitable for imparting a non-white color to carrier layer 17 . The term therefore excludes "white" pigments such asTiO2 , which are commonly added to the layers of conventional absorbent articles to give them a white appearance. Pigments are typically dispersed in a vehicle or substrate when applied, for example, as in inks, paints, plastics or other polymeric materials.
可将颜料例如掺入到聚丙烯母料中。母料包括分散在载体介质中的高浓度的颜料和/或添加剂，该颜料和/或添加剂然后可用于将天然聚合物材料着色或改性为着色的双组分非织造材料。可掺入的合适的着色母料材料的一个示例为Pantone颜色270Sanylenviolet PP 42000634ex Clariant，其为一种具有高浓度紫色颜料的PP树脂。通常，按载体层17的重量计，所掺入的颜料量可为0.3％-2.5％。Pigments can be incorporated, for example, into polypropylene masterbatches. Masterbatches include high concentrations of pigments and/or additives dispersed in a carrier medium which can then be used to color or modify natural polymeric materials into colored two-component nonwoven materials. An example of a suitable color masterbatch material that can be incorporated is Pantone Color 270 Sanylenviolet PP 42000634ex Clariant, which is a PP resin with a high concentration of violet pigment. Typically, the amount of pigment incorporated may range from 0.3% to 2.5% by weight of carrier layer 17 .
另选地，可通过将着色剂浸渍到基底中来向载体层17赋予颜色。可在基底诸如聚合物、树脂或非织造材料的形成中浸渍着色剂诸如染料、颜料或组合。例如，可在薄膜、纤维或长丝形成期间将着色剂加入到聚合物的熔融批料中。Alternatively, color may be imparted to carrier layer 17 by impregnating a colorant into the substrate. Colorants such as dyes, pigments or combinations may be impregnated in the formation of substrates such as polymers, resins or nonwovens. For example, the colorant may be added to the molten batch of polymer during film, fiber or filament formation.
当从顶片24观察吸收制品20时，着色的载体层17可向看护者提供增强的深度印象以支持由三维突出部250赋予的此类印象，只要着色的载体层17是从顶片24可见的。因此，着色的载体层17可支持看护者的感知，该吸收制品20能够很好地吸收液体身体流出物。When viewing the absorbent article 20 from the topsheet 24, the colored carrier layer 17 can provide the caregiver with an enhanced impression of depth to support such an impression imparted by the three-dimensional protrusions 250, so long as the colored carrier layer 17 is visible from the topsheet 24 of. Thus, the colored carrier layer 17 can support the caregiver's perception that the absorbent article 20 is well capable of absorbing liquid body exudates.
出于相同的原因，顶片/采集层层合体245的顶片24和/或采集层52可为着色的。For the same reason, the topsheet 24 and/or the acquisition layer 52 of the topsheet/acquisition layer laminate 245 may be colored.
载体层17可为多孔的，可具有相对高的渗透性，并且当在诸如20cm水柱的抽吸压力下暴露于流体时具有相对高的饱和度水平。载体层17的相对高的饱和度水平可被定义为载体层17的孔隙中的液体身体流出物的体积和载体层17的总空隙体积之间的比率。载体层17可帮助提供介于顶片/采集层层合体245的采集层52和分配层54之间的连通性。The carrier layer 17 may be porous, may have a relatively high permeability, and have a relatively high saturation level when exposed to fluid under a suction pressure such as 20 cm of water. The relatively high saturation level of the carrier layer 17 may be defined as the ratio between the volume of liquid bodily exudates in the pores of the carrier layer 17 and the total void volume of the carrier layer 17 . The carrier layer 17 can help provide connectivity between the acquisition layer 52 and the distribution layer 54 of the topsheet/acquisition layer laminate 245 .
另外，载体层17还可包括一些相对小尺寸的洞，使得分配层54的干法成网纤维结构的干法成网纤维540可部分地穿过载体层的洞。因此，干法成网纤维结构的干法成网纤维540可编结并接触顶片/采集层层合体245的采集层52。载体层17可包括具有0.02mm至10mm的尺寸的洞。In addition, the carrier layer 17 may also include holes of relatively small size such that the dry-laid fibers 540 of the dry-laid fibrous structure of the distribution layer 54 may partially pass through the holes of the carrier layer. Thus, the dry-laid fibers 540 of the dry-laid fibrous structure can be woven and contact the acquisition layer 52 of the topsheet/acquisition layer laminate 245 . The carrier layer 17 may comprise holes having a size of 0.02 mm to 10 mm.
机械变形部和所得的三维突出部Mechanical deformation and resulting three-dimensional protrusions
与将顶片24与采集层52一起机械地变形并组合起来相关的工艺100的步骤可包括以下步骤：提供第一相互啮合辊211和第二相互啮合辊212，如图17，18A和18B所示。The steps of the process 100 associated with the topsheet 24 being mechanically deformed and combined with the acquisition layer 52 may comprise the steps of: providing a first interengaging roller 211 and a second interengaging roller 212, as shown in Figures 17, 18A and 18B Show.
设备200的第一相互啮合辊211可包括多个脊215和对应凹槽216，该多个脊和凹槽基本上不间断地围绕第一相互啮合辊211的圆周延伸。The first intermeshing roller 211 of the apparatus 200 may include a plurality of ridges 215 and corresponding grooves 216 extending substantially uninterrupted around the circumference of the first intermeshing roller 211 .
第二相互啮合辊212可包括已被改进为多排周向间隔开的齿217的多排周向延伸的脊和对应凹槽218，其中多排周向间隔开的齿217以间隔开的关系围绕第二相互啮合辊212的至少一部分延伸。The second intermeshing roll 212 may include rows of circumferentially extending ridges and corresponding grooves 218 that have been modified into rows of circumferentially spaced teeth 217 in spaced relation. Extends around at least a portion of the second intermeshing roller 212 .
顶片幅材240和采集层52可在第一相互啮合辊211和第二相互啮合辊212之间相互啮合在一起，使得第一相互啮合辊211的脊215延伸到第二相互啮合辊212的凹槽218中，并且第二相互啮合辊212的齿217延伸到第一相互啮合辊211的凹槽216中，从而形成顶片/采集层层合体245。因此，获得了包括三维突出部250的多个变形部。The topsheet web 240 and the acquisition layer 52 can be intermeshed together between the first intermeshing roll 211 and the second intermeshing roll 212 such that the spine 215 of the first intermeshing roll 211 extends to the second intermeshing roll 212. groove 218, and the teeth 217 of the second intermeshing roll 212 extend into the groove 216 of the first intermeshing roll 211, thereby forming a topsheet/acquisition layer laminate 245. Thus, a plurality of deformations including the three-dimensional protrusions 250 are obtained.
顶片/采集层层合体245的三维突出部250可仅被形成在其中顶片/采集层层合体245中的顶片24重叠采集层52的位置。The three-dimensional protrusions 250 of the topsheet/acquisition layer laminate 245 may only be formed where the topsheet 24 in the topsheet/acquisition layer laminate 245 overlaps the acquisition layer 52 .
第一相互啮合辊211和第二相互啮合辊212可进一步由齿高TH、节距P和啮合深度E限定，如图18A所示。齿高TH可从第二相互啮合辊212的表面测量至齿217的顶端。齿高TH可在0.5mm至10mm或0.5mm至5mm的范围内。The first intermeshing roller 211 and the second intermeshing roller 212 may be further defined by a tooth height TH, a pitch P, and an engagement depth E, as shown in FIG. 18A . The tooth height TH may be measured from the surface of the second intermeshing roller 212 to the tip of the tooth 217 . The tooth height TH may be in the range of 0.5mm to 10mm or 0.5mm to 5mm.
节距P可被定义为从第二相互啮合辊212的第一齿的顶端测量至第二齿的顶端的齿至齿间距。第二相互啮合辊212的第一齿和第二齿可位于横向上。节距P可在1mm至10mm或1mm至5mm的范围内。Pitch P may be defined as the tooth-to-tooth spacing measured from the tip of the first tooth of the second intermeshing roller 212 to the tip of the second tooth. The first and second teeth of the second intermeshing roller 212 may be located in the transverse direction. The pitch P may be in the range of 1 mm to 10 mm or 1 mm to 5 mm.
啮合深度E为第一相互啮合辊211和第二相互啮合辊212彼此啮合程度的量度。啮合深度E可从脊215的顶端测量至齿217的顶端，该齿沿横向与脊215相邻。啮合深度E可在0.5mm至10mm或0.5mm至5mm或1至4mm的范围内。The depth of engagement E is a measure of the extent to which the first intermeshing roller 211 and the second intermeshing roller 212 are engaged with each other. The depth of engagement E can be measured from the top of the ridge 215 to the top of the tooth 217 which is laterally adjacent to the ridge 215 . The engagement depth E may be in the range of 0.5mm to 10mm or 0.5mm to 5mm or 1 to 4mm.
第二相互啮合辊212的每个齿217可由周向齿长TL和齿距TD限定，如图17和18B所示。周向齿长TL可在齿尖处从前缘测量至后缘。齿长TL可在0.5mm至10mm或0.5mm至4mm或1mm至4mm的范围内。Each tooth 217 of the second intermeshing roller 212 may be defined by a circumferential tooth length TL and a tooth pitch TD, as shown in FIGS. 17 and 18B . The circumferential tooth length TL can be measured from the leading edge to the trailing edge at the tooth tip. The tooth length TL may be in the range of 0.5mm to 10mm or 0.5mm to 4mm or 1mm to 4mm.
每个齿周向地以齿距TD彼此分开。齿距TD可从第一齿的前缘测量至第二齿的后缘。第二相互啮合辊212的第一齿和第二齿可在纵向上位于相同圆周上。齿距TD可在0.5mm至10mm或0.5mm至5mm或1mm至3mm的范围内。Each tooth is circumferentially separated from one another by a pitch TD. The tooth distance TD may be measured from the leading edge of the first tooth to the trailing edge of the second tooth. The first and second teeth of the second intermeshing roller 212 may be longitudinally located on the same circumference. The tooth pitch TD may be in the range of 0.5mm to 10mm or 0.5mm to 5mm or 1mm to 3mm.
齿217、凹槽216，218和脊215的其它取向是可能的，例如沿CD方向而不是MD方向。Other orientations of the teeth 217, grooves 216, 218 and ridges 215 are possible, for example in the CD direction instead of the MD direction.
顶片24和采集层52被嵌套在一起，使得被形成在顶片24中的大多数三维突出部与被形成在采集层52中的大多数三维突出部重合并贴合在一起。The topsheet 24 and acquisition layer 52 are nested together such that most of the three-dimensional protrusions formed in the topsheet 24 coincide and fit together with most of the three-dimensional protrusions formed in the acquisition layer 52 .
顶片24和采集层52均可为可延展的。顶片24和/或采集层52能够拉伸，并且不互穿透过相应的破裂的顶片或采集层。Both the topsheet 24 and the acquisition layer 52 may be extensible. The topsheet 24 and/or acquisition layer 52 are capable of stretching and do not interpenetrate through the corresponding ruptured topsheet or acquisition layer.
一般来讲，构成顶片24和采集层52的材料的延展性可根据三维突出部250的所期望的尺寸来选择。如果期望相对大的三维突出部250，则将选择具有相对较高延展性的材料。In general, the extensibility of the materials comprising the topsheet 24 and acquisition layer 52 can be selected based on the desired dimensions of the three-dimensional protrusions 250 . If a relatively large three-dimensional protrusion 250 is desired, a material with relatively high ductility will be selected.
例如，根据如上所述的“测试方法”，顶片24或采集层52在达到断裂力时或之前能够沿吸收制品的纵向轴线和/或横向轴线经历等于或大于至少100％或110％或120％或130％最高至200％的表观伸长。For example, according to the "Test Method" described above, the topsheet 24 or the acquisition layer 52 can experience equal to or greater than at least 100% or 110% or 120% along the longitudinal axis and/or transverse axis of the absorbent article before reaching the breaking force. % or 130% up to 200% apparent elongation.
在一些情况下，可能期望具有沿吸收制品的纵向轴线或横向轴线的较大的三维突出部250。为此，构成顶片24和采集层52的材料可因此沿吸收制品的纵向轴线与横向轴线相比更可延展，或反之亦然。In some instances, it may be desirable to have larger three-dimensional protrusions 250 along the longitudinal or transverse axis of the absorbent article. To this end, the material making up the topsheet 24 and acquisition layer 52 may thus be more extensible along the longitudinal axis of the absorbent article than the transverse axis, or vice versa.
顶片/采集层层合体245可包括多个三维突出部250。所述多个三维突出部250可朝分配层54(也参见图2)或朝载体层17(参见图11，图12)突出。当三维突出部250朝分配层54延伸时，介于顶片/采集层层合体245的采集层52和下面的分配层54之间的接触面积得到改善。因此，可增大液体身体流出物从顶片/采集层层合体245向分配层54的转移。The topsheet/acquisition layer laminate 245 may include a plurality of three-dimensional protrusions 250 . The plurality of three-dimensional protrusions 250 may protrude towards the distribution layer 54 (see also FIG. 2 ) or towards the carrier layer 17 (see FIGS. 11 , 12 ). When the three-dimensional protrusions 250 extend toward the distribution layer 54, the contact area between the acquisition layer 52 of the topsheet/acquisition layer laminate 245 and the underlying distribution layer 54 is improved. Thus, the transfer of liquid bodily exudates from the topsheet/acquisition layer laminate 245 to the distribution layer 54 may be enhanced.
图19A-图19F示出了三维突出部250的不同的另选替代方案。环形突出部可为一种类型的三维突出部250，参见例如图19B。环形突出部可通过如上文刚刚所述的相互啮合工艺步骤使用设备200来获得。19A-19F show different alternatives for three-dimensional protrusions 250 . The annular protrusion may be a type of three-dimensional protrusion 250, see eg FIG. 19B. The annular protrusion can be obtained using the apparatus 200 by intermeshing process steps as described immediately above.
另一种类型的三维突出部250可为隧道形环。一般来讲，隧道形环可包括形成开口的基座，并且也包括前缘261处的开口和后缘262处的开口，参见例如图19C。Another type of three-dimensional protrusion 250 may be a tunnel-shaped ring. In general, the tunnel-shaped ring may include a base forming an opening, and also include an opening at the leading edge 261 and an opening at the trailing edge 262, see eg FIG. 19C.
如图19A和19B所示，呈环形突出部形式的三维突出部250可包括内三维突出部251A和外三维突出部251B。顶片24的内三维突出部251A被嵌套在采集层52的外三维突出部251B中。As shown in FIGS. 19A and 19B , the three-dimensional protrusion 250 in the form of an annular protrusion may include an inner three-dimensional protrusion 251A and an outer three-dimensional protrusion 251B. The inner three-dimensional protrusions 251A of the topsheet 24 are nested within the outer three-dimensional protrusions 251B of the acquisition layer 52 .
三维突出部250可通过将顶片24与采集层52相互啮合而制成，使得顶片24的内三维突出部251A和采集层52的外三维突出部251B重合并贴合在一起。The three-dimensional protrusions 250 can be made by intermeshing the topsheet 24 and the acquisition layer 52 such that the inner three-dimensional protrusions 251A of the topsheet 24 and the outer three-dimensional protrusions 251B of the acquisition layer 52 coincide and fit together.
内三维突出部251A可包括顶片24的多根环状纤维254A。外三维突出部251B(内三维突出部251A被嵌套在其中)可包括采集层52的多根环状纤维254B。The inner three-dimensional protrusion 251A may comprise a plurality of looped fibers 254A of the topsheet 24 . The outer three-dimensional protrusion 251B into which the inner three-dimensional protrusion 251A is nested may comprise a plurality of annular fibers 254B of the acquisition layer 52 .
三维突出部250可包括空隙区域253，该空隙区域为不包括任何纤维的三维突出部251A的一部分。三维突出部250可由形成邻近于顶片24的开口的基座256、远侧部分257和介于基座256和远侧部分257之间的一个或多个侧壁255限定。三维突出部250可由形成开口的基座256的突出部基座宽度WL1限定，该突出部基座宽度是从基座256处的内三维突出部251A的两个相对侧壁测量的。每个三维突出部250可由空隙区域253的宽度WL2限定，该宽度为在内三维突出部251A的两个相对侧壁之间测量的最大宽度。空隙隙区域253的宽度WL2可大于三维突出部250的基座256的突出部基座宽度WL1。对基座256的突出部基座宽度WL1和远侧部分257的宽度WL2这些尺度的测量可在显微照片上进行。当基座256的突出部基座宽度WL1的尺寸为本文所指定时，应当理解，如果开口在特定方向上不是均匀的宽度，则突出部基座宽度WL1在最宽部分处进行测量。The three-dimensional protrusion 250 may include a void region 253 that is a portion of the three-dimensional protrusion 251A that does not include any fibers. The three-dimensional protrusion 250 may be defined by a base 256 forming an opening adjacent to the topsheet 24 , a distal portion 257 , and one or more sidewalls 255 between the base 256 and the distal portion 257 . The three-dimensional protrusion 250 may be defined by a protrusion base width WL1 of the base 256 forming the opening, measured from two opposing sidewalls of the inner three-dimensional protrusion 251A at the base 256 . Each three-dimensional protrusion250 may be defined by a width WL2 of void region 253, which is the maximum width measured between two opposing sidewalls of inner three-dimensional protrusion 251A. The width WL2 of the void region 253 may be greater than the protrusion base width WL1 of the base 256 of the three-dimensional protrusion 250 . Measurements of these dimensions, the protrusion base width WL1of the base 256 and the width WL2 of the distal portion 257, can be madeon photomicrographs. While the protrusion base width WL1of the base 256 is sized as specified herein, it should be understood that if the opening is not of uniform width ina particular direction, the protrusion base width WL1 is measured at the widest portion.
大多数三维突出部250可在基座256处仅具有一个开口。顶片/采集层层合体245的三维突出部250的至少50％或至少80％可仅在基座256处具有开口。大多数三维突出部250可由顶片24和采集层52的纤维形成。大多数三维突出部250可包括形成开口的基座256、相对的远侧部分257、和介于三维突出部250的基座256和远侧部分257之间的一个或多个侧壁255。基座256、远侧部分257和一个或多个侧壁255可由纤维形成，使得大多数三维突出部仅在基座256处具有开口。大多数三维突出部250可具有锥形形状，参见例如图19B。Most three-dimensional protrusions 250 may have only one opening at the base 256 . At least 50%, or at least 80%, of the three-dimensional protrusions 250 of the topsheet/acquisition layer laminate 245 may have openings at the base 256 only. Most of the three-dimensional protrusions 250 may be formed from the fibers of the topsheet 24 and the acquisition layer 52 . Most three-dimensional protrusions 250 may include a base 256 forming an opening, an opposing distal portion 257 , and one or more side walls 255 between base 256 and distal portion 257 of three-dimensional protrusion 250 . Base 256 , distal portion 257 and one or more side walls 255 may be formed from fibers such that most three-dimensional projections have openings at base 256 only. Most three-dimensional protrusions 250 may have a tapered shape, see eg Figure 19B.
如图19C所示，每个内三维突出部251A和外三维突出部251B可由多根环状纤维254A,254B制成，该多根环状纤维沿纵向和横向彼此对齐以产生隧道形环250，该隧道形环除了基座256处的开口之外还在隧道的每个末端上具有开口261,262。在这种情况下，基座256的突出部基座宽度WL1相对较小。根据“突出部基座宽度测试方法”，三维突出部250的基座256的测量的突出部基座宽度WL1可在0.1mm至1.2mm或0.1mm至1mm或0.1mm至0.5mm的范围内。As shown in FIG. 19C , each inner three-dimensional protrusion 251A and outer three-dimensional protrusion 251B may be made from a plurality of looped fibers 254A, 254B that are longitudinally and transversely aligned with each other to create a tunnel-shaped loop 250, The tunnel-shaped ring has openings 261 , 262 on each end of the tunnel in addition to the opening at the base 256 . In this case, the protrusion base width WL1 of the base 256 is relatively small. The measured protrusion base width WL1 of the base 256 of the three-dimensional protrusion 250 may be in the range of 0.1 mm to 1.2 mm or 0.1 mm to 1 mm or 0.1 mm to 0.5 mm according to the "Protrusion Base Width Test Method". .
在三维突出部的区域中，顶片24和/或采集层52可包括一个或多个间断部。该一个或多个间断部的形成可归因于顶片24和采集层52的特性。顶片24相对于采集层52中的纤维移动性和/或纤维延展性来讲可为不太可延展的，或反之亦然，使得在顶片24和/或采集层52中开始形成洞。In the region of three-dimensional protrusions, the topsheet 24 and/or acquisition layer 52 may include one or more discontinuities. The formation of the one or more discontinuities may be due to the properties of the topsheet 24 and acquisition layer 52 . The topsheet 24 may be less extensible with respect to fiber mobility and/or fiber extensibility in the acquisition layer 52, or vice versa, so that holes begin to form in the topsheet 24 and/or the acquisition layer 52.
因此，如图19D或19E所示，采集层52可在顶片/采集层层合体245的三维突出部250的区域中间断。间断的采集层52的三维突出部251B可包括间断部258。Accordingly, the acquisition layer 52 may be interrupted in the area of the three-dimensional protrusions 250 of the topsheet/acquisition layer laminate 245, as shown in Figure 19D or 19E. The three-dimensional protrusions 251B of the discontinuous acquisition layer 52 may include discontinuities 258 .
一般来讲，采集层52可具有比顶片24低的延展性。在此类情况下，采集层52可开始破裂并形成间断部，即与构成顶片24的纤维相比，构成采集层52的纤维不太可延展和/或不太可活动。In general, the acquisition layer 52 may have a lower extensibility than the topsheet 24 . In such cases, the acquisition layer 52 may begin to rupture and form discontinuities, ie, the fibers making up the acquisition layer 52 are less extensible and/or less mobile than the fibers making up the topsheet 24 .
非间断的顶片24的三维突出部251A可与间断的采集层的三维突出部251B重合并贴合在一起，如图19D所示。换句话讲，顶片24不被推挤穿过采集层52，使得顶片24不互穿采集层52。The three-dimensional protrusions 251A of the uninterrupted topsheet 24 can overlap and fit together the three-dimensional protrusions 251B of the intermittent acquisition layer, as shown in FIG. 19D. In other words, the topsheet 24 is not pushed through the acquisition layer 52 such that the topsheet 24 does not interpenetrate the acquisition layer 52 .
另选地，非间断的顶片24的三维突出部251A可部分地与间断的采集层的三维突出部251B贴合在一起，如图19E所示。Alternatively, the uninterrupted three-dimensional protrusions 251A of the topsheet 24 may be partially bonded to the three-dimensional protrusions 251B of the intermittent acquisition layer, as shown in Figure 19E.
同样，顶片24可在顶片/采集层层合体245的三维突出部250的区域中间断。Likewise, the topsheet 24 may be interrupted in the region of the three-dimensional protrusions 250 of the topsheet/acquisition layer laminate 245 .
一般来讲，顶片24可具有比采集层52低的延展性。在此类情况下，顶片24可开始破裂并形成间断部，即与构成采集层52的纤维相比，构成顶片24的纤维可不太可延展和/或不太可活动。In general, the topsheet 24 may have a lower extensibility than the acquisition layer 52 . In such cases, the topsheet 24 may begin to rupture and form discontinuities, ie, the fibers making up the topsheet 24 may be less extensible and/or less mobile than the fibers making up the acquisition layer 52 .
在另一种替代形式中，顶片24和采集层52可在顶片/采集层层合体245的三维突出部250的区域中间断，并且顶片251A的三维突出部与采集层52的三维突出部251B重合并贴合在一起。顶片/采集层层合体245的三维突出部250的区域中的顶片24中的间断部258A将不与顶片/采集层层合体245的三维突出部250的区域中的采集层52中的间断部258B重叠，如图19F所示。In another alternative, the topsheet 24 and acquisition layer 52 may be interrupted in the area of the three-dimensional protrusions 250 of the topsheet/acquisition layer laminate 245, and the three-dimensional protrusions of the topsheet 251A are separated from the three-dimensional protrusions of the acquisition layer 52. Portions 251B overlap and fit together. The discontinuity 258A in the topsheet 24 in the area of the three-dimensional protrusion 250 of the topsheet/acquisition layer laminate 245 will not separate from the discontinuity 258A in the acquisition layer 52 in the area of the three-dimensional protrusion 250 of the topsheet/acquisition layer laminate 245. Discontinuities 258B overlap, as shown in Figure 19F.
当吸收制品20在使用时，多个三维突出部250可朝穿着者的身体突出(也参见图3)。当三维突出部250朝穿着者的身体突出时(当吸收制品20在使用时)，介于顶片/采集层层合体245的顶片24和穿着者的皮肤之间的接触面积得到增强。因此，顶片/采集层层合体245向穿着者提供软垫和改善的舒适感。When the absorbent article 20 is in use, the plurality of three-dimensional protrusions 250 may protrude toward the wearer's body (see also Fig. 3). When the three-dimensional protrusions 250 protrude toward the wearer's body (when the absorbent article 20 is in use), the contact area between the topsheet 24 of the topsheet/acquisition layer laminate 245 and the wearer's skin is enhanced. Thus, the topsheet/acquisition layer laminate 245 provides cushioning and improved comfort to the wearer.
图20A-图20D示出了另选替代方案，其说明多个三维突出部250例如环形突出部可如何从采集层52向顶片/采集层层合体245的顶片24突出。在那些另选替代方案中，呈环形突出部形式的三维突出部250可包括内三维突出部251A和外三维突出部251B。采集层52的内三维突出部251A嵌套在顶片24的外三维突出部251B中。内三维突出部251A可包括采集层52的多根环状纤维254B。外三维突出部251B(内三维突出部251A嵌套在其中)可包括顶片24的多根环状纤维254A。FIGS. 20A-20D show an alternative illustrating how a plurality of three-dimensional protrusions 250 , such as annular protrusions, may protrude from the acquisition layer 52 toward the topsheet 24 of the topsheet/acquisition layer laminate 245 . In those alternatives, the three-dimensional protrusion 250 in the form of an annular protrusion may include an inner three-dimensional protrusion 251A and an outer three-dimensional protrusion 251B. The inner three-dimensional protrusions 251A of the acquisition layer 52 are nested within the outer three-dimensional protrusions 251B of the topsheet 24 . The inner three-dimensional protrusion 251A may include a plurality of annular fibers 254B of the acquisition layer 52 . The outer three-dimensional protrusions 251B (within which the inner three-dimensional protrusions 251A are nested) may comprise a plurality of looped fibers 254A of the topsheet 24 .
顶片/采集层层合体245的10cm2的面积可包括5至100个三维突出部250、10至50个三维突出部250或20至40个三维突出部250。A 10 cm2 area of the topsheet/acquisition layer laminate 245 may include 5 to 100 three-dimensional protrusions 250 , 10 to 50 three-dimensional protrusions 250 , or 20 to 40 three-dimensional protrusions 250 .
用于顶片和采集层的前体材料Precursor materials for topsheet and acquisition layer
本发明的顶片/采集层层合体245可由任何合适的非织造材料(“前体材料”)制成。在一些情况下，顶片/采集层层合体245也可不含纤维素材料。用于顶片/采集层层合体245的前体材料可具有合适的特性以便被变形。前体材料的合适的特性可包括：纤维的表观伸长、纤维移动性、在其中形成顶片/采集层层合体245的三维突出部250的区域中的变形和拉伸能力。因此，前体材料能够经历机械变形，以确保三维突出部250将不趋于恢复到或回到先前的层合在平坦采集层52上的平坦顶片24的构型。The topsheet/acquisition layer laminate 245 of the present invention can be made from any suitable nonwoven material ("precursor material"). In some cases, the topsheet/acquisition layer laminate 245 may also be free of cellulosic material. The precursor material for the topsheet/acquisition layer laminate 245 may have suitable properties to be deformed. Suitable properties of the precursor material may include apparent elongation of the fibers, fiber mobility, deformation and stretchability in the region where the three-dimensional protrusions 250 of the topsheet/acquisition layer laminate 245 are formed. Thus, the precursor material is capable of undergoing mechanical deformation to ensure that the three-dimensional protrusions 250 will not tend to revert or return to the previous configuration of the flat topsheet 24 laminated on the flat acquisition layer 52 .
适于用作用于顶片/采集层层合体245的顶片24的非织造材料的若干示例可包括但不限于：纺粘非织造材料；梳理非织造材料；和具有相对特定的特性而能够被容易地变形的非织造材料。Several examples of nonwoven materials suitable for use as the topsheet 24 of the topsheet/acquisition layer laminate 245 may include, but are not limited to: spunbonded nonwovens; carded nonwovens; Easily deformable nonwoven material.
一种适于用作用于顶片/采集层层合体245的顶片24的非织造材料可为可延展的聚丙烯/聚乙烯纺粘非织造织物。一种适用作用于顶片/采集层层合体245的顶片24的非织造材料可为包括聚丙烯和聚乙烯的纺粘非织造织物。纤维可包含聚丙烯和聚乙烯的共混物。另选地，纤维可包括双组分纤维，诸如皮-芯纤维，其具有纤维的皮上的聚乙烯和纤维的芯中的聚丙烯。One suitable nonwoven material for use as the topsheet 24 for the topsheet/acquisition layer laminate 245 may be an extensible polypropylene/polyethylene spunbond nonwoven. One suitable nonwoven material for use as the topsheet 24 of the topsheet/acquisition layer laminate 245 may be a spunbond nonwoven comprising polypropylene and polyethylene. Fibers may comprise blends of polypropylene and polyethylene. Alternatively, the fibers may comprise bicomponent fibers such as sheath-core fibers having polyethylene on the sheath of the fiber and polypropylene in the core of the fiber.
顶片/采集层层合体245的顶片24可具有8gsm至40gsm或8gsm至30gsm或8gsm至20gsm的基重。The topsheet 24 of the topsheet/acquisition layer laminate 245 may have a basis weight of 8 gsm to 40 gsm, or 8 gsm to 30 gsm, or 8 gsm to 20 gsm.
适用于顶片/采集层层合体245的采集层52的非织造材料可包括但不限于：纺粘非织造材料、通风粘结的(“TAB”)梳理高蓬松非织造材料、水刺非织造材料、水编结的非织造材料、和树脂粘结的梳理非织造材料。纺粘PET可比梳理非织造材料更致密，从而提供更大的均匀度和不透明度。由于PET纤维不是非常可延展的，因此可粘结非织造织物，使得当材料被应变时纤维中的至少一些纤维可容易地与粘结位置分开，以允许纤维被拉出粘结位置并重新布置。这种类型的粘结，例如压力粘结，可帮助增大纤维的移动水平。实际上，纤维在张力下趋于从粘结位置拉出。Suitable nonwoven materials for the acquisition layer 52 of the topsheet/acquisition layer laminate 245 may include, but are not limited to: spunbond nonwovens, air through bonded ("TAB") carded high loft nonwovens, spunlace nonwovens materials, hydrowoven nonwovens, and resin bonded carded nonwovens. Spunbond PET can be denser than carded nonwovens, providing greater uniformity and opacity. Since PET fibers are not very extensible, nonwovens can be bonded such that when the material is strained at least some of the fibers can easily separate from the bonded sites to allow the fibers to be pulled out of the bonded sites and rearranged . This type of bonding, such as pressure bonding, can help increase the level of fiber movement. In fact, the fibers tend to pull out of the bonded site under tension.
采集层表现出10gsm至120gsm或10gsm至100gsm或10gsm至80gsm的基重。The acquisition layer exhibits a basis weight of 10 gsm to 120 gsm, or 10 gsm to 100 gsm, or 10 gsm to 80 gsm.
顶片24和/或采集层52可具有0.01g/cm3至0.4g/cm3或0.01g/cm3至0.25g/cm3或0.04g/cm3至0.15g/cm3的密度。The topsheet 24 and/or the acquisition layer 52 may have a density of 0.01 g/cm3 to 0.4 g/cm3 or 0.01 g/cm3 to 0.25 g/cm3 or 0.04 g/cm3 to 0.15 g/cm3 .
顶片24和采集层52可在机械变形之前或在机械变形期间接合在一起。如果需要，可选择性地在顶片24和采集层52之间利用粘合剂、化学粘结、树脂或粉末粘结、或热粘结以将顶片24和采集层52的某些区域或全部粘结在一起。此外，顶片24和采集层52还可在加工期间粘结，例如，通过将顶片24梳理到采集层52上并且热点粘结所组合的层。The topsheet 24 and acquisition layer 52 may be joined together prior to or during mechanical deformation. If desired, adhesives, chemical bonding, resin or powder bonding, or thermal bonding can optionally be used between the topsheet 24 and the acquisition layer 52 to bond certain areas or regions of the topsheet 24 and the acquisition layer 52. All glued together. Additionally, the topsheet 24 and acquisition layer 52 may also be bonded during processing, for example, by carding the topsheet 24 onto the acquisition layer 52 and thermal thermal bonding the combined layers.
在任何机械变形之前，顶片24可附接到采集层52。例如，顶片24可在其中顶片24和采集层52重叠的位置附接到采集层52。顶片24对采集层52的附接可包括均匀连续的粘合剂层、粘合剂的不连续的图案化施加或一系列独立粘合剂线、粘合剂螺旋线或粘合剂点。顶片/采集层层合体245中的粘合剂的基重可为0.5gsm至30gsm或1gsm至10gsm或2gsm至5gsm。The topsheet 24 may be attached to the acquisition layer 52 prior to any mechanical deformation. For example, the topsheet 24 may be attached to the acquisition layer 52 at a location where the topsheet 24 and the acquisition layer 52 overlap. Attachment of the topsheet 24 to the acquisition layer 52 may include a uniform continuous layer of adhesive, a discontinuous patterned application of adhesive, or a series of individual lines, spirals, or dots of adhesive. The adhesive in the topsheet/acquisition layer laminate 245 can have a basis weight of 0.5 gsm to 30 gsm or 1 gsm to 10 gsm or 2 gsm to 5 gsm.
示例example
顶片和采集层用热熔融粘合剂彼此附接，该热熔融粘合剂是按螺旋线形式以5gsm的基重施加的。将采集层相对于顶片居中到顶片上并且放置成与顶片的前MD边缘相距50mm。顶片和采集层附接在一起以形成复合幅材。The topsheet and acquisition layer were attached to each other with a hot melt adhesive applied in a spiral at a basis weight of 5 gsm. The acquisition layer is centered onto the topsheet relative to the topsheet and placed 50mm from the front MD edge of the topsheet. The topsheet and acquisition layer are attached together to form a composite web.
附接在一起的顶片和采集层已通过使它们在一对相互啮合辊211,212之间穿过而同时被机械地变形，参见例如图17。顶片/采集层层合体的顶片接触第一相互啮合辊211。顶片/采集层层合体的采集层接触第二相互啮合辊212。脊和凹槽具有三角形形状的横截面，如图18A所举例说明的。该辊的节距P为0.100英寸(2.5mm)。第二相互啮合辊212具有被布置成交错图案的离散齿217。齿217具有约0.195英寸(4.9mm)的均匀的周向长度尺度TL，彼此周向地均匀间隔开0.162英寸(4.1mm)的距离TD，并且具有约0.270英寸(10.6mm)的齿高TH。齿的长侧面具有与竖直线所成的约5度的侧壁角度，并且齿的前缘和后缘具有竖直侧壁。第一相互啮合辊211具有高度为约0.270英寸(10.6mm)的连续脊215。附接到采集层的顶片在第一相互啮合辊211和第二相互啮合辊212之间以0.135英寸(3.43mm)的啮合深度(DOE)被相互啮合。The topsheet and acquisition layer attached together have been mechanically deformed simultaneously by passing them between a pair of intermeshing rollers 211,212, see eg FIG. 17 . The topsheet of the topsheet/acquisition layer laminate contacts a first intermeshing roll 211 . The acquisition layer of the topsheet/acquisition layer laminate contacts the second intermeshing roll 212 . The ridges and grooves have triangular shaped cross-sections, as illustrated in Figure 18A. The pitch P of the rolls was 0.100 inches (2.5 mm). The second intermeshing roller 212 has discrete teeth 217 arranged in a staggered pattern. Teeth 217 have a uniform circumferential length dimension TL of approximately 0.195 inches (4.9 mm), are uniformly spaced circumferentially from each other by a distance TD of 0.162 inches (4.1 mm), and have a tooth height TH of approximately 0.270 inches (10.6 mm). The long sides of the teeth have a sidewall angle of about 5 degrees from vertical, and the leading and trailing edges of the teeth have vertical sidewalls. The first intermeshing roll 211 has a continuous ridge 215 with a height of about 0.270 inches (10.6 mm). The topsheet attached to the acquisition layer was intermeshed between the first intermeshing roll 211 and the second intermeshing roll 212 at a depth of engagement (DOE) of 0.135 inches (3.43 mm).
顶片/采集层层合体的顶片为密度为0.11g/cm3的亲水性涂覆的单组分高伸长率纺粘聚丙烯(HES PP)非织造材料。用于顶片的单组分HES PP非织造材料具有20gsm的总体基重。首先将该单组分HES PP非织造材料涂覆上由脂肪酸聚乙二醇酯制成的面漆，以便产生永久亲水性单组分HES PP非织造材料。顶片/采集层层合体的顶片具有168mm的宽度和488mm的长度。The topsheet of the topsheet/acquisition layer laminate was a hydrophilic coated monocomponent high elongation spunbond polypropylene (HES PP) nonwoven having a density of 0.11 g/cm3 . The one-component HES PP nonwoven used for the topsheet had an overall basis weight of 20 gsm. The one-component HES PP nonwoven was first coated with a topcoat made of fatty acid polyethylene glycol ester in order to produce a permanently hydrophilic one-component HES PP nonwoven. The topsheet of the topsheet/acquisition layer laminate had a width of 168mm and a length of 488mm.
顶片/采集层层合体的采集层为纺粘非织造材料，其基重为60gsm并且密度为0.13g/cm3。采集层包括经表面活性剂处理的具有70/30的PET/共PET比率的7旦尼尔的PET/共PET(聚对苯二甲酸乙二酯)三叶形双组分纤维。顶片/采集层层合体的采集层具有90mm的宽度和338mm的长度。The acquisition layer of the topsheet/acquisition layer laminate was a spunbond nonwoven having a basis weight of 60 gsm and a density of 0.13 g/cm3 . The acquisition layer comprised surfactant-treated 7 denier PET/coPET (polyethylene terephthalate) trilobal bicomponent fibers with a PET/coPET ratio of 70/30. The acquisition layer of the topsheet/acquisition layer laminate had a width of 90 mm and a length of 338 mm.
载体层为具有90/10的PET/共PET比率的共PET/PET尖头三叶形双组分纤维。载体层的基重为17.7gsm。载体层具有168mm的宽度和250mm的长度。The carrier layer was a coPET/PET pointed trilobal bicomponent fiber with a PET/coPET ratio of 90/10. The basis weight of the carrier layer was 17.7 gsm. The carrier layer has a width of 168 mm and a length of 250 mm.
用于示例的原型尿布Prototype diapers for example
用于上述示例的尿布原型是使用从2011年10月至2012年10月在俄罗斯商购获得的Pampers Premium Care S4(尺寸4)尿布制备的。Pampers Premium Care S4(尺寸4)尿布包括顶片、顶片下面的采集层、采集层下面的分配层、介于采集层和吸收芯下面的底片之间的吸收芯。用于上述示例的尿布原型是使用Pampers Premium Care S4(尺寸4)尿布制备的。The diaper prototypes used in the above examples were prepared using Pampers Premium Care S4 (size 4) diapers commercially available in Russia from October 2011 to October 2012. A Pampers Premium Care S4 (size 4) diaper comprised a topsheet, an acquisition layer below the topsheet, a distribution layer below the acquisition layer, an absorbent core between the acquisition layer and the backsheet below the absorbent core. The diaper prototypes used in the above examples were prepared using Pampers Premium Care S4 (size 4) diapers.
将用于每个示例的附接在一起的顶片和采集层放置在Pampers Premium Care S4(尺寸4)尿布的顶部上，已从那里移除了商业顶片和采集层，其间将分配层保持在原位。对于基于上述示例的每个尿布原型，将顶片/采集层层合体放置在具有朝底片突出的三维突出部的分配层的顶部上。The topsheet and acquisition layer attached together for each example were placed on top of a Pampers Premium Care S4 (size 4) diaper from which the commercial topsheet and acquisition layer had been removed, leaving the distribution layer in between. in place. For each diaper prototype based on the examples above, the topsheet/acquisition layer laminate was placed on top of the distribution layer with the three-dimensional protrusions protruding towards the backsheet.
将呈螺旋线形式的热熔融粘合剂以5gsm的基重施加在面向顶片/采集层层合体的采集层的载体层的表面上。将采集层前边缘放置成与分配层前边缘相距10mm。利用热熔融粘合剂将附接到载体层的顶片/采集层层合体附接到分配层和吸收芯上，该热熔融粘合剂施加到面向分配层的载体层和顶片的整个侧面上。热熔融粘合剂是按螺旋线形式以5gsm的基重施加的。A hot melt adhesive in the form of a spiral was applied at a basis weight of 5 gsm on the surface of the carrier layer facing the acquisition layer of the topsheet/acquisition layer laminate. The front edge of the acquisition layer was placed 10 mm from the front edge of the distribution layer. The topsheet/acquisition layer laminate attached to the carrier layer is attached to the distribution layer and absorbent core using a hot melt adhesive applied to the entire side of the carrier layer and topsheet facing the distribution layer superior. The hot melt adhesive was applied in a helix at a basis weight of 5 gsm.
顶片/采集层层合体的三维突出部朝底片突出，因为顶片/采集层层合体的顶片接触凸辊，如上所述。The three-dimensional protrusions of the topsheet/acquisition layer laminate protrude toward the backsheet as the topsheet of the topsheet/acquisition layer laminate contacts the convex roller, as described above.
将每个原型尿布以“袋内叠堆高度”(即10个双折尿布的总厚度为90mm)压实在袋中并持续1个星期。然后打开所述袋，并且在进行任何测试之前将从袋中取出的尿布在23℃+/-2℃和50％+/-10％的相对湿度(RH)下调理至少24小时。Each prototype diaper was compacted in the bag at the "in-bag stack height" (ie 10 bifold diapers with a total thickness of 90 mm) for 1 week. The bags were then opened and the diapers removed from the bags were conditioned at 23°C +/- 2°C and 50% +/- 10% relative humidity (RH) for at least 24 hours before any testing was performed.
根据相应的“突出部高度测试方法”和“突出部基座宽度测试方法”，测量顶片/采集层层合体的三维突出部的测量的突出部高度和测量的突出部基座宽度(表1)。The measured tab height and measured tab base width of the three-dimensional tabs of the topsheet/acquisition layer laminate were measured according to the respective "Test Method for Tab Height" and "Test Method for Tab Base Width" (Table 1 ).
表1：三维突出部的突出部高度和突出部基座宽度的测量Table 1: Measurements of protrusion height and protrusion base width for three-dimensional protrusions
测试方法Test Methods
湿破裂测试方法Wet Burst Test Method
本文所用的“湿破裂强度”为当纤维结构润湿并经受相对于纤维结构平面的变形时，其吸收能量的能力的量度。As used herein, "wet burst strength" is a measure of the ability of a fibrous structure to absorb energy when wetted and subjected to deformation relative to the plane of the fibrous structure.
纤维结构(在该测试方法内称作“样本”)的湿破裂强度使用电子耐破度测试仪和指定的测试条件来确定。对从4次实验获得的结果取平均值，并且针对由单一湿法成网纤维层组成的纤维结构55记录湿破裂强度。The wet burst strength of the fibrous structure (referred to within this test method as a "specimen") is determined using an electronic burst tester and specified test conditions. The results obtained from 4 experiments were averaged and the wet burst strength was recorded for the fibrous structure 55 consisting of a single wet-laid fibrous layer.
设备equipment
-设备：耐破度测试仪-Thwing-Albert Vantage Burst Tester或等同的球式耐破度测试仪器，其中所述球在测试期间向下移动。参见制造商的操作和设置说明。球直径为1.59cm，并且夹具开口直径为8.9cm。- Equipment: Burst Tester - Thwing-Albert Vantage Burst Tester or equivalent ball burst tester where the ball moves downward during the test. See manufacturer's operating and setting instructions. The ball diameter is 1.59 cm and the clamp opening diameter is 8.9 cm.
-校准砝码-参见制造商的校准说明。- Calibration weights - see manufacturer's calibration instructions.
-对于实验室测试，将调理室温度和湿度控制在以下限度内：- For laboratory testing, control the conditioning room temperature and humidity within the following limits:
温度：23°±1℃Temperature: 23°±1°C
相对湿度：50％±2％Relative humidity: 50%±2%
-裁纸刀-切板，600mm尺寸- Paper knife - cutting board, 600mm size
-剪刀-100mm或更大- Scissors - 100mm or larger
-盘-宽度/长度/深度约为：240×300×50mm，或等同物- Disc - Approximate width/length/depth: 240 x 300 x 50mm, or equivalent
-所用调理室的温度下的蒸馏水- Distilled water at the temperature of the conditioning chamber used
样本制备sample preparation
纤维结构55可从辊退绕。The fibrous structure 55 can be unwound from a roll.
在即将进行测试之前，将待测试样本在调理室中调理24小时。所有测试均是在调理室内进行的。The samples to be tested were conditioned in the conditioning room for 24 hours immediately prior to testing. All tests were performed in a conditioning room.
切割所述样本，使得它们为约228mm的长度和约140mm的宽度。The samples were cut such that they were about 228mm in length and about 140mm in width.
操作operate
根据制造商对所用仪器的说明，设置并校准所述Burst Tester仪器。The Burst Tester instrument was set up and calibrated according to the manufacturer's instructions for the instrument used.
抓住样本的窄边缘，将样本的中心浸入到填充有蒸馏水(与顶部相距约25mm)的盘中。使样本静置在水中4(±0.5)秒。Grasp the sample by its narrow edge and dip the center of the sample into a pan filled with distilled water (about 25 mm from the top). Allow the sample to stand in the water for 4 (±0.5) seconds.
将样本保持在竖直位置，同时从样本排掉多余的水并持续3(±0.5)秒。Hold the sample in an upright position while draining excess water from the sample for 3 (±0.5) seconds.
该测试应当在排水步骤之后立即进行。样本应当在待测试的样本区域中不具有穿孔、撕裂部或缺陷。如果具有穿孔、撕裂部或缺陷部，则重新开始测试。This test should be performed immediately after the drain step. The samples should have no punctures, tears or defects in the area of the sample to be tested. If there is a puncture, tear or defect, restart the test.
将样本放置在所述Burst Tester仪器的上环和下环之间。将样本以某种方式居中并且平坦地定位在样本固定装置的下环上，使得在样本中不存在松弛。The sample is placed between the upper and lower rings of the Burst Tester instrument. The sample is centered and positioned flat on the lower ring of the sample holder in such a way that there is no slack in the sample.
放低气动式固定装置的上环，以固定样本。Lower the upper ring of the pneumatic holder to secure the sample.
开始测试。测试在样本失效(破裂)即当载荷从峰值力下降20g时结束。记录最大力值。start testing. The test ends when the sample fails (cracks), ie when the load drops 20 g from the peak force. Record the maximum force.
压杆将自动倒退并返回初始位置。The plunger will automatically back up and return to its original position.
将上环抬起以便取出并丢弃测试过的样本。Lift the upper ring to remove and discard the tested sample.
重复该规程，直到测试了所有复制品。This procedure was repeated until all replicas were tested.
计算calculate
湿破裂强度＝峰值载荷读数的总和/所测试的复制品的数目Wet Burst Strength = Sum of Peak Load Readings/Number of Replicas Tested
记录湿破裂结果，精确至克。Record wet rupture results to the nearest gram.
突出部基座宽度测试方法和突出部高度测试方法Protrusion Base Width Test Method and Protrusion Height Test Method
1)一般信息1) General information
吸收制品的顶片/采集层层合体的三维突出部的“测量的突出部基座宽度”和“测量的突出部高度”是使用可商购得自GFMesstechnik GmbH(Warthestraβe 21，D14513Teltow/Berlin，Germany)的GFM Primos Optical Profiler仪器测量的。也可使用具有类似的测量和分析原理的另选的合适的非接触式表面拓朴轮廓仪，此处举例说明了GFMPrimos。The "measured lobe base width" and "measured lobe height" of the three-dimensional lobe of the topsheet/acquisition layer laminate of the absorbent article were obtained using the ) GFM Primos Optical Profiler instrument measurement. Alternative suitable non-contact surface topographers with similar measurement and analysis principles may also be used, GFMPrimos is exemplified here.
所述GFM Primos Optical Profiler仪器包括基于数字微镜投影的紧凑的光学测量传感器，其由以下主要部件组成：The GFM Primos Optical Profiler instrument includes a compact optical measurement sensor based on digital micromirror projection, which consists of the following main components:
a)具有800×600直接数控微镜的DMD投影仪a) DMD projector with 800×600 direct numerically controlled micromirrors
b)具有高分辩率(640×480像素)的CCD相机b) CCD camera with high resolution (640×480 pixels)
c)适于测量至少30×40mm面积的投影光学系统c) Projection optics suitable for measuring an area of at least 30 x 40 mm
d)适于测量至少30×40mm面积的记录光学系统d) Recording optics suitable for measuring an area of at least 30 x 40 mm
e)基于小硬石板的台式三角架e) Bench tripod based on small hard stone slabs
f)冷光源(一种适当的单元为KL 1500LCD，Schott North America，Inc.(Southbridge，MA))f) Cold light source (one suitable unit is the KL 1500LCD, Schott North America, Inc. (Southbridge, MA))
g)运行ODSCAD 6.3软件的测量、控制、和评估计算机g) Measurement, control, and evaluation computer running ODSCAD 6.3 software
开启冷光源。将冷光源上的设定值设置成提供至少2800K的色温。Turn on the cold light source. Set the setting on the cold light source to provide a color temperature of at least 2800K.
开启计算机、监视器，并且打开图像采集/分析软件。在Primos Optical Profiler仪器中，从ODSCAD 6.3任务条选择“Start Measurement”(开始测量)图标，然后点击“LiveImage(实时图像)按钮”。Turn on the computer, monitor, and open the image acquisition/analysis software. In the Primos Optical Profiler instrument, select the "Start Measurement" icon from the ODSCAD 6.3 task bar, then click the "LiveImage (real-time image) button".
根据制造商的说明，使用校准板来校准该仪器的侧向(X-Y)和竖直(Z)尺寸。此类“校准”是使用由任何无光泽材料构成的刚性实心板进行的，该板具有11cm的长度、8cm的宽度和1cm的高度。该板具有凹槽或加工的通道，该凹槽或加工的通道具有矩形横截面、11cm的长度、6.000mm的宽度和2.940mm的精确深度。该凹槽平行于板的长度方向。在校准之后，该仪器必须能够测量凹槽的宽度尺度和深度尺度，精确至±0.004mm。Calibration plates were used to calibrate the instrument in lateral (X-Y) and vertical (Z) dimensions according to the manufacturer's instructions. Such "calibration" is carried out using a rigid solid plate of any matte material having a length of 11 cm, a width of 8 cm and a height of 1 cm. The plate has grooves or machined channels with a rectangular cross-section, a length of 11 cm, a width of 6.000 mm and a precise depth of 2.940 mm. The groove is parallel to the length of the plate. After calibration, the instrument must be able to measure the width and depth scales of the grooves to an accuracy of ±0.004mm.
所有测试均在保持在23±2℃和50+/-10％相对湿度下的调理室中进行。待测量的表面可略微喷涂有非常细的白色粉末喷涂剂。优选地，喷涂剂为购自Helling GmbH(Heidgraben，Germany)的NORD-TEST Developer U 89。All tests were performed in a conditioned room maintained at 23±2°C and 50+/−10% relative humidity. The surface to be measured can be lightly sprayed with a very fine white powder spray. Preferably, the spraying agent is NORD-TEST Developer U 89 available from Helling GmbH (Heidgraben, Germany).
2)突出部基座宽度测试方法2)Test method for protrusion base width
通过如下方式从吸收制品中提取顶片/采集层层合体：以张紧的平面(即拉伸的平面)构型将吸收制品附接到平坦表面，使顶片/采集层层合体的顶片朝上。切除任何腿弹性部件或箍弹性部件以便允许吸收制品平坦放置。使用剪刀沿顶片/采集层层合体的边缘穿过吸收芯(即芯包裹物)上方的所有层作出两个纵向切口。沿循吸收制品的前腰边缘和后腰边缘穿过相同的层作出两个横向切口。Extract the topsheet/acquisition layer laminate from the absorbent article by attaching the absorbent article to a flat surface in a tensioned planar (i.e. stretched planar) configuration such that the topsheet of the topsheet/acquisition layer laminate up. Cut away any leg elastics or cuff elastics to allow the absorbent article to lay flat. Using scissors, make two longitudinal incisions through all layers above the absorbent core (ie core wrap) along the edge of the topsheet/acquisition layer laminate. Two transverse cuts are made through the same layer along the front and back waist edges of the absorbent article.
然后去除顶片/采集层层合体和吸收芯上方的任何其它层，不要干扰顶片/采集层层合体。可使用冷冻喷涂剂(例如由CRC Industries，Inc.(885Louis Drive，Warminster，PA 18974，USA)制造的CRC Freeze Spray)或等同助剂来促进最上层从吸收制品的去除。然后将顶片/采集层层合体与任何其它层分开，所述任何其它层包括任何载体层(例如非织造载体层、薄纸层)；如有必要，使用冷冻喷涂剂。如果分配层例如包含纸浆的层附接到顶片/采集层层合体，则用镊子小心地去除任何残余的纤维素纤维，不要改变采集层。The topsheet/acquisition layer laminate and any other layers above the absorbent core are then removed without disturbing the topsheet/acquisition layer laminate. A freeze spray such as CRC Freeze Spray manufactured by CRC Industries, Inc. (885 Louis Drive, Warminster, PA 18974, USA) or an equivalent aid may be used to facilitate removal of the topmost layer from the absorbent article. The topsheet/acquisition layer laminate is then separated from any other layers, including any carrier layers (eg, nonwoven carrier layer, tissue layer); if necessary, using a freeze spray. If a distribution layer such as a pulp-containing layer is attached to the topsheet/acquisition layer laminate, carefully remove any remaining cellulose fibers with tweezers without altering the acquisition layer.
将具有三维突出部的顶片/采集层层合体(在23℃±2℃的温度和50％±10％的相对湿度下调理至少24小时)即“样品”铺放在硬质平坦水平表面上，使面向身体侧向上即顶片/采集层层合体的顶片向上。确保样品以平面构型放置，没有被拉伸，使样品未被覆盖。The topsheet/acquisition layer laminate with three-dimensional protrusions (conditioned for at least 24 hours at a temperature of 23°C ± 2°C and a relative humidity of 50% ± 10%), the "sample", is laid on a hard flat horizontal surface , with the body facing side up, ie the topsheet of the topsheet/acquisition layer laminate facing up. Make sure the sample is placed in a flat configuration and not stretched so that the sample is uncovered.
然后向样品施加1.86kPa(0.27psi)的标称外部压力。此类标称外部压力是在不妨碍形貌轮廓测量的情况下施加的。此类外部压力是使用透明的无光泽平坦板施加的，该板为200mm乘70mm和适当的厚度(约5mm)以实现83g的重量。将所述板轻轻地放置在样品之上，使得板的中心点远离任何折叠部至少40mm，使整个板静置在样品上。折叠部对应于吸收制品(例如顶片/采集层层合体)的如下部分，其中出于封装的目的，所述吸收制品已被折叠。A nominal external pressure of 1.86 kPa (0.27 psi) was then applied to the sample. Such nominal external pressures are applied without interfering with topography profile measurements. Such external pressure is achieved using a clear matte flat Board applied, the board is 200mm by 70mm and a suitable thickness (approximately 5mm) to achieve a weight of 83g. Gently place the plate on top of the sample so that The center point of the plate is at least 40 mm away from any folds, allowing the entire plate to rest on the sample. A fold corresponds to that portion of an absorbent article (eg a topsheet/acquisition layer laminate) where the absorbent article has been folded for packaging purposes.
将两个50mm×70mm的金属砝码(每个具有1200g的质量(43mm的近似厚度))轻轻地放置在板上，使得每个金属砝码的70mm边缘与板的70mm边缘对齐。将具有70mm×80mm的外部尺度和42mm×61mm的内部尺度和142g的总重量(近似厚度为6mm)的金属柜架在两个端部砝码之间定位在板的中心，使所述柜架的最长侧边与所述板的最长侧边对齐。Two 50mm x 70mm metal weights (each having a mass of 1200g (approximate thickness of 43mm)) were gently placed on the board so that the 70mm edge of each metal weight is aligned with The 70mm edges of the boards are aligned. A metal cabinet frame with external dimensions of 70mm x 80mm and internal dimensions of 42mm x 61mm and a total weight of 142g (approximate thickness of 6mm) was positioned between the two end weights on center of the board, aligning the longest side of the frame with the longest side of the board.
如果样品小于70×200mm，或者如果不存在无折叠部的足够大的区域，或者如果感兴趣的区域靠近样品的边缘并且不能够用上述Plexiglas和砝码设定值来分析，则板的X-Y尺度和所添加的金属砝码可被调整以达到1.86kPa(0.27psi)的标称外部压力，同时保持最小30×40mm的视场。在30mm×40mm的视场中应当捕获样品的至少10个完整三维突出部。If the sample is smaller than 70 x 200mm, or if there is no sufficiently large area without folds, or if the region of interest is close to the edge of the sample and cannot be analyzed with the above Plexiglas and weight settings, then The XY scale of the plate and the added metal weights can be adjusted to achieve a nominal external pressure of 1.86kPa (0.27psi) while maintaining a minimum 30x40mm field of view. At least 10 complete three-dimensional protrusions of the sample should be captured in the 30mm x 40mm field of view.
将投影头定位成正交于样品表面(即正交于顶片/采集层层合体的顶片)。Position the projection head normal to the sample surface (ie normal to the topsheet of the topsheet/acquisition layer laminate).
调节样品和投影头之间的距离以便最佳地聚焦。Adjust the distance between the sample and projection head for optimal focus.
在Primos Optical Profiler仪器中，开启按钮“图案”以使红十字出现在屏幕十字上并且黑十字出现在样品上。In the Primos Optical Profiler instrument, turn on the button "Pattern" so that a red cross appears on the screen cross and a black cross appears on the sample.
调节聚焦控制，直到黑十字在屏幕上与红十字对齐。Adjust the focus control until the black cross is aligned with the red cross on the screen.
调节图像亮度，然后捕获数字化图像。Adjust image brightness, then capture a digitized image.
在Primos Optical Profiler仪器中，通过投影仪头部的侧面中的洞和/或通过在屏幕上改变相机“增益”的设定来改变镜头上的孔。In the Primos Optical Profiler instrument, the hole in the lens is changed through the hole in the side of the projector head and/or by changing the camera "gain" setting on the screen.
当照明最佳时，在屏幕底部处标记为“I.O.”的红色圆圈将变成绿色。When the lighting is optimal, the red circle marked "I.O." at the bottom of the screen will turn green.
点击“测量”按钮。Click the "Measure" button.
通过Plexiglas板在30mm×40mm的整个视场上测量顶片/采集层层合体样品的上表面的形貌。重要的是在该时间中保持样品静止不动以便避免所捕获的图像模糊不清。图像应当在将Plexiglas板、金属砝码和柜架放置在样品之上之后的30秒内捕获。The topography of the upper surface of the topsheet/acquisition layer laminate samples was measured through the Plexiglas plate over the entire field of view of 30 mm x 40 mm. It is important to keep the sample still during this time in order to avoid blurring of the captured image. Images should be captured within 30 seconds of placing the Plexiglas plate, metal weights and racks on top of the sample.
在捕获了图像之后，记录所述40mm×30mm视场面积的每一像素的X-Y-Z坐标。X方向为平行于矩形视场的最长边缘的方向，Y方向为平行于矩形视场的最短边缘的方向。Z方向为垂直于X-Y平面的方向。X-Y平面为水平的，而Z方向为竖直的，即正交于X-Y平面。After the image was captured, the X-Y-Z coordinates of each pixel of the 40mm x 30mm field of view area were recorded. The X direction is a direction parallel to the longest edge of the rectangular field of view, and the Y direction is a direction parallel to the shortest edge of the rectangular field of view. The Z direction is a direction perpendicular to the X-Y plane. The X-Y plane is horizontal, and the Z direction is vertical, ie, orthogonal to the X-Y plane.
使用多项式过滤器(n＝6)、11像素乘11像素的中值过滤器、和81像素乘81像素的结构过滤器来整平和过滤这些数据。多项式过滤器(n＝6)利用6次多项式逼近X-Y-Z坐标表面，并且将差值返回到所逼近的多项式。所述11像素乘11像素的中值过滤器将视场(40mm×30mm)分成11像素乘11像素的X-Y正方形。位于给定11像素乘11的像素正方形的中心处的像素的Z坐标将被该给定正方形的所有像素的平均Z值替换。81像素乘81像素的结构过滤器去除所述结构的波动性，并且将属于Plexiglas板的底部表面的所有Z峰值平移至顶部X-Y平面。The data were flattened and filtered using a polynomial filter (n=6), an 11 pixel by 11 pixel median filter, and an 81 pixel by 81 pixel structural filter. A polynomial filter (n=6) approximates the X-Y-Z coordinate surface with a polynomial of degree 6, and returns the difference to the approximated polynomial. The 11 pixel by 11 pixel median filter divides the field of view (40mm x 30mm) into 11 pixel by 11 pixel X-Y squares. The Z coordinate of a pixel located at the center of a given 11 pixel by 11 pixel square will be replaced by the average Z value of all pixels of that given square. An 81 pixel by 81 pixel structure filter removes the fluctuations of the structure and translates all Z peaks belonging to the bottom surface of the Plexiglas plate to the top X-Y plane.
“基准平面”因而被定义为X-Y平面，其拦截该顶部X-Y平面以下100微米的整个视场(即30mm×40mm)的形貌轮廓。在Primos Optical Profiler仪器中，为了测量“基准平面”(Z＝-0.1mm)的“材料面积”，点击按钮“评估”。然后，使用“过滤器”功能来应用预过滤例程，其包括多项式过滤器(n＝6)、11乘11的中值过滤器和结构过滤器(n＝81)。以扩展名“.omc”将图像保存到计算机文件中。The "reference plane" is thus defined as the X-Y plane that intercepts the topography profile for the entire field of view (ie 30mm x 40mm) 100 microns below the top X-Y plane. In the Primos Optical Profiler instrument, in order to measure the "material area" of the "reference plane" (Z=-0.1mm), click the button "Evaluate". Then, use the "filter" function to apply pre-filtering routines, which include polynomial filters (n=6), 11 by 11 median filters, and structural filters (n=81). Save the image to a computer file with the extension ".omc".
对顶片/采集层层合体执行相同的上述规程，使面向衣服侧向上(即顶片/采集层层合体的采集层向上)，该40mm×30mm的视场位于精确的顶片/采集层层合体的相同X-Y位置处。Perform the same above procedure for the topsheet/acquisition layer laminate so that the garment facing side is up (i.e. the acquisition layer of the topsheet/acquisition layer laminate is facing up), the 40mm x 30mm field of view is at the exact topsheet/acquisition layer layer At the same X-Y position of the fit.
基准平面的“空区域”可被定义为表面轮廓上方的“基准平面”的区域。具有严格地位于视场面积(即30mm×40mm)内部而不与视场面积(即40mm×30mm)的边界相交或重叠的边界的“空区域”被定义为“隔离空区域”。对于“隔离空区域”，测量的突出部基座宽度被定义为可内接在给定“隔离空区域”内的最大圆圈的直径。该圆圈应当仅与“隔离空区域”重叠。The "empty area" of the datum plane can be defined as the area of the "datum plane" above the surface contour. A "void region" with a boundary strictly inside the field of view (ie 30mm x 40mm) without intersecting or overlapping the border of the field of view (ie 40mm x 30mm) is defined as an "isolated void". For "isolated voids", the measured protrusion base width is defined as the diameter of the largest circle that can be inscribed within a given "isolated void". The circle should only overlap the "isolated empty area".
在Primos Optical Profiler仪器中，这可通过如下方式来进行：点击“画圆圈”，并且在选定的“隔离空区域”内画出可能的最大内接圆圈。点击“显示截面图”，可经由点击截面图轮廓的末端并随后点击“水平距离”来测量圆圈直径以获得突出部基座宽度。In the Primos Optical Profiler instrument, this is done by clicking on "Draw Circle" and drawing the largest possible inscribed circle within the selected "Isolated Empty Area". Clicking on "Show Section", the diameter of the circle can be measured to obtain the protrusion base width by clicking on the end of the section outline and then clicking on "Horizontal Distance".
针对所采集的图像和数字化图像，确定所有“隔离空区域”的突出部基座宽度。然后，将“测量的突出部基座宽度”计算为6个最大突出部基座宽度的算术平均值。For the acquired and digitized images, determine the protrusion base width for all "isolated empty areas". The "measured tab base width" was then calculated as the arithmetic mean of the 6 largest tab base widths.
3)突出部高度测试方法3)Protrusion height test method
如上文在“突出部基座宽度测试方法”中所述从吸收制品提取顶片/采集层层合体。The topsheet/acquisition layer laminate was extracted from the absorbent article as described above in the "Tab Base Width Test Method".
然后进行调理并在1.86kPa(0.27psi)的压力下扫描包括三维突出部的顶片/采集层层合体样品，使面向身体侧向上即顶片/采集层层合体的顶片向上，如上文在“突出部基座宽度测试方法”中所述的。Then conditioned and scanned under a pressure of 1.86 kPa (0.27 psi) the sample of the topsheet/acquisition layer laminate comprising three-dimensional protrusions with the body facing side up, i.e. the topsheet of the topsheet/acquisition layer laminate facing up, as described above in as described in the Protrusion Base Width Test Method.
在捕获了图像之后，记录并整平/过滤所述40mm×30mm的视场面积的每一像素的X-Y-Z坐标，如上文在“突出部基座宽度测试方法”中所述的。基准平面也被定义为上文在“突出部基座宽度测试方法”中所述的基准平面。After the image was captured, the X-Y-Z coordinates of each pixel of the 40mm x 30mm field of view area were recorded and flattened/filtered as described above in the "Protrusion Base Width Test Method". The reference plane is also defined as the reference plane described above in the "Protrusion Base Width Test Method".
在Primos Optical Profiler仪器中，为了测量“基准平面”(Z＝-0.1mm)的“材料面积”，点击按钮“评估”。然后使用“过滤器”功能来应用预过滤例程，其包括多项式过滤器(n＝6)、11乘11的中值过滤器和结构过滤器(n＝81)。以扩展名“.omc”将图像保存到计算机文件中。In the Primos Optical Profiler instrument, in order to measure the "material area" of the "reference plane" (Z=-0.1mm), click the button "Evaluate". The "filter" function was then used to apply pre-filtering routines, which included polynomial filters (n=6), 11 by 11 median filters, and structural filters (n=81). Save the image to a computer file with the extension ".omc".
然后对顶片/采集层层合体执行上文在“突出部基座宽度测试方法”中所述的相同的规程，使面向衣服侧向上(即顶片/采集层层合体的采集层向上)，该40mm×30mm的视场位于顶片/采集层层合体的精确的相同X-Y位置处。The topsheet/acquisition layer laminate is then subjected to the same procedure described above in the "Test Method for Tab Base Width" with the garment-facing side up (i.e. the acquisition layer of the topsheet/acquisition layer laminate is facing up), The 40mm x 30mm field of view is at the exact same X-Y position of the topsheet/acquisition layer laminate.
基准平面的“空区域”可被定义为所述表面轮廓上方的“基准平面”的区域。具有严格地位于视场面积(即30mm×40mm)的内部而不与所述视场面积(即40mm×30mm)的边界相交或重叠的边界的“空区域”被定义为“隔离空区域”。对于“隔离空区域”，“突出部高度”被定义为具有位于该“隔离空区域”中的X-Y坐标的顶片/采集层层合体表面轮廓的点的最小Z值和顶部X-Y平面的Z值之间的距离。The "empty area" of the datum plane may be defined as the area of the "datum plane" above the surface profile. A "void region" having a boundary strictly inside the field area (ie 30 mm x 40 mm) without intersecting or overlapping the border of the field area (ie 40 mm x 30 mm) is defined as an "isolated void area". For an "Isolation Void Area", the "Protrusion Height" is defined as the minimum Z value of the point of the topsheet/acquisition layer laminate surface profile with X-Y coordinates located in this "Isolation Void Area" and the Z value of the top X-Y plane the distance between.
点击“画出N条平行线”并画出第一线段，该第一线段平行于视场的X轴(所述视场的最长尺度的方向)，穿过“隔离空区域”的中心并且延伸到“隔离空区域”边界之外。“隔离空区域”的中心对应于线段的中部，该线段平行于视场的Y轴并且接合“隔离空区域”的最大Y值和最小Y值。然后输入要画出的线的“数目”，并且将所述线之间的“距离”设定为0.05mm。需要画出足够多的线以便覆盖整个“隔离空区域”。使所述平均化参数为0，然后点击“确定”。然后点击“显示截面图”。点击具有最小Z值的截面图轮廓的点，并且点击“竖直距离”以获得突出部高度。Click on "Draw N Parallel Lines" and draw the first line segment parallel to the X-axis of the field of view (the direction of the longest dimension of the field of view), passing through the "isolated empty area" center and extend beyond the Isolate Empty Region boundary. The center of the "isolation void" corresponds to the middle of the line segment that is parallel to the Y axis of the field of view and joins the maximum and minimum Y values of the "isolation void". Then enter the "number" of lines to draw, and set the "distance" between the lines to 0.05mm. Enough lines need to be drawn to cover the entire "isolation void". Set the Averaging parameter to 0 and click OK. Then click "Show Section View". Click on the point of the profile with the smallest Z value, and click on "Vertical Distance" to get the protrusion height.
对于所采集的图像和数字化图像，确定所有“隔离空区域”的“突出部高度”。然后，将测量的突出部高度计算为6个最大“突出部高度”的算术平均值。For the acquired and digitized images, determine the "Protrusion Height" of all "Isolated Empty Areas". The measured protrusion heights were then calculated as the arithmetic mean of the 6 largest "projection heights".
本文所公开的量纲和数值不应被理解为严格限于所述确切数值。相反，除非另外指明，否则每个这样的量纲旨在表示所述值以及围绕该值功能上等同的范围。例如，公开为“40mm”的量纲旨在表示“约40mm”。Dimensions and numerical values disclosed herein are not to be understood as being strictly limited to the exact numerical values recited. Instead, unless otherwise indicated, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as "40 mm" is intended to mean "about 40 mm."
除非明确排除或限制，将本文引用的每篇文献，包括任何交叉引用或相关专利或专利申请，全文以引用方式并入本文。任何文献的引用不是对其相对于任何本发明所公开的或本文受权利要求书保护的现有技术的认可，或不是对其单独地或以与任何其它参考文献或多个参考文献的组合提出、建议或公开了任何此类发明的认可。此外，如果此文献中术语的任何含义或定义与以引用方式并入本文的文献中相同术语的任何含义或定义相冲突，将以此文献中赋予该术语的含义或定义为准。Every document cited herein, including any cross-referenced or related patent or application, is hereby incorporated by reference in its entirety unless expressly excluded or limited. The citation of any document is not an admission that it is relative to any prior art disclosed or claimed herein, either alone or in combination with any other reference or references , suggested or disclosed any such inventions. Furthermore, to the extent that any meaning or definition of a term in this document conflicts with any meaning or definition of the same term in a document incorporated by reference, the meaning or definition assigned to that term in this document will control.
虽然已经举例说明和描述了本发明的具体实施方式，但是对于本领域技术人员来说显而易见的是，在不脱离本发明实质和范围的情况下可作出多个其他改变和变型。因此，本文旨在于所附权利要求中涵盖属于本发明范围内的所有这些改变和变型。While particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201462049403P | 2014-09-12 | 2014-09-12 | |
| US201462049397P | 2014-09-12 | 2014-09-12 | |
| US62/049,403 | 2014-09-12 | ||
| US62/049,397 | 2014-09-12 | ||
| PCT/US2015/048305WO2016040093A1 (en) | 2014-09-12 | 2015-09-03 | Absorbent article comprising a topsheet/acquisition layer laminate |
| Publication Number | Publication Date |
|---|---|
| CN106659616Atrue CN106659616A (en) | 2017-05-10 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580048041.0APendingCN106659616A (en) | 2014-09-12 | 2015-09-03 | Absorbent article comprising a topsheet/acquisition layer laminate |
| Country | Link |
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| EP (1) | EP3191060A1 (en) |
| JP (1) | JP2017527387A (en) |
| CN (1) | CN106659616A (en) |
| WO (1) | WO2016040093A1 (en) |
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| CN106659616A (en) | Absorbent article comprising a topsheet/acquisition layer laminate | |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | Application publication date:20170510 | |
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