CROSS REFERENCE TO RELATED APPLICATIONSThis application claims the benefit, under 35 U.S.C. §119(e), to U.S. Provisional Patent Application Ser. No. 62/351,325, filed on Jun. 17, 2016 and to U.S. Provisional Patent Application Ser. No. 62/299,794, filed on Feb. 25, 2016, the entire disclosures of which are hereby fully incorporated by reference herein.
FIELDThe present disclosure is directed to configurable absorbent articles.
BACKGROUNDAbsorbent articles are used to contain bodily exudates (e.g., urine and BM) in infants, children, and adults. Absorbent articles may be used in hospitals for diapering infants, premature babies, and/or Neonatal Abstinence Syndrome (“NAS”) babies. Premature babies, NAS babies, or other small infants may require special care by nurses and other hospital staff. These babies are oftentimes on ventilators, feeding tubes, or other life support or monitoring systems. In some instances, the babies may be positioned within incubators, also known as isolets. The babies are typically kept in high humidity, sterile environments as they have very delicate skin that needs to be protected. It is important to the health of these premature babies that they not be handled too much and that they are maintained in a very sterile environment. Handling the babies too much may cause them stress. Current absorbent articles for premature or NAS babies are somewhat difficult to use and too large for very premature babies, especially in the crotch region. When the current absorbent articles are folded about their lateral axis, they typically take on a rectangular or substantially rectangular shape, thereby providing a wide crotch region. Additionally, current absorbent articles for premature and NAS babies do not provide superior containment of bodily exudates and skin protection from the bodily exudates. Further, the current absorbent articles do not provide all of the features that premature or NAS baby caregivers may view as beneficial. As such, absorbent articles for premature babies, NAS babies, other babies, and other wearers need to be improved.
SUMMARYThe present disclosure provides configurable absorbent articles suitable for premature and NAS babies (and other small infants, other babies, or other wearers), while not being limited to any certain sizes or uses. As discussed above, one issue with current absorbent articles is that they are not configured for the specific needs of premature or NAS babies, in some instances, forcing nurses to handle these babies more than the nurses' desire. The configurable absorbent articles of the present disclosure overcome the disadvantages of current premature and/or NAS baby absorbent articles by providing very narrow crotch regions, narrow chassis regions, small overall dimensions, soft skin-contacting surfaces, front and back umbilical cord notches (in some forms to create a reversible absorbent article), front and back reverse umbilical cord projections (in some forms to create a reversible absorbent article), discrete and detachable fastening members (to allow nurses to configure the absorbent articles as needed and have fastening flexibility), one or more wetness guards, and/or low opacity outer cover nonwovens and/or backsheets, for example. The discrete and detachable fastening members may have slots or apertures formed therein, so that tubes or hoses used to aid or monitor the health of the premature or NAS babies may be inserted therethrough without disturbing the baby or without the need for moving the baby. These slots or apertures may also help hold the tubes or hoses in place. Low opacity backsheets and/or outer cover nonwoven materials may be helpful in identifying when the absorbent article needs changed without the need for moving the babies. In some forms, the configurable absorbent articles of the present disclosure may allow for use without any fastening members, owing to the discrete and detachable fastening members. This may be desired by nurses in some instances and may reduce the need to touch or move the baby. Furthermore, the absorbent articles of the present disclosure may also be reversible to allow the nurse to apply the absorbent article as he/she desires or as is needed. Absorbent materials in absorbent cores of the absorbent articles may be homogeneous to allow for reversible use. Further, the absorbent cores may have an extended hourglass shape to help narrow the crotch region and provide for more fit options and leg placements.
The absorbent articles of the present disclosure may comprise one or more wetness guards. The wetness guards may comprise one or more liquid impermeable materials, such as films or nonwoven materials, and one or more non-film materials, such as one or more nonwoven materials. The wetness guards may be positioned in areas of the absorbent articles that come into contact with a baby's lower back, waist, and/or legs, but not be positioned where a crotch area of the baby contacts the absorbent article. The non-film material may face toward the baby to provide comfort, while the liquid impermeable material may face away from the baby. The wetness guards may accomplish at least two functions. First, when a baby urinates, the urine is typically wicked away from the point of entry into the absorbent core throughout the absorbent core (both laterally and longitudinally). This may cause areas of the absorbent pad where the baby's lower back, waist, and/or legs are to be wet. The wetness guards provide a barrier between the wet areas and the baby's lower back, waist, and/or legs thereby leading to improved skin health for the baby. Second, the wetness guards may comprise soft non-film materials facing the baby's skin. As such, the baby's lower back, waist, and/or legs may rest on a soft, comfortable material again leading to improved skin health.
These and other advantages of the configurable absorbent articles of the present disclosure are set forth herein in greater detail.
The present disclosure is directed, in part, to an absorbent article comprising a central lateral axis, a central longitudinal axis, a first end edge, a second end edge opposing the first end edge, a first side edge, a second side edge opposing the first side edge, a first waist region on a first side of the central lateral axis, a second waist region on a second side of the central lateral axis, and a crotch region extending intermediate the first waist region and the second waist region and crossing the central lateral axis. The absorbent article comprises a liquid permeable, apertured or nonapertured topsheet. The topsheet may be hydrophobic or hydrophilic, or may have hydrophilic or hydrophobic portions or layers. The absorbent article comprises a liquid impermeable backsheet, an acquisition material, and an absorbent core positioned at least partially intermediate the acquisition material and the liquid impermeable backsheet. The absorbent core comprises an absorbent material. The absorbent material may have a first width, in a direction parallel to the central lateral axis, in the first waist region. The absorbent material may have a second width, in the direction parallel to the lateral axis, in the second waist region. The absorbent material may have a third width, in the direction parallel to the lateral axis, in the crotch region. The first width and the second width may be greater than the third width and the first and second widths may be the same, substantially the same, or different. The absorbent article comprises a pair of leg cuffs positioned proximal to the first and second side edges. The absorbent article comprises a first wetness guard in the first waist region. The first wetness guard may comprise a first liquid impermeable material in a facing relationship with the topsheet and a second liquid permeable material forming a first portion of a wearer-facing surface of the absorbent article. The absorbent article may comprise a second wetness guard in the second waist region. The second wetness guard may comprise a third liquid impermeable material in a facing relationship with the topsheet and a fourth liquid permeable material forming a second portion of the wearer-facing surface of the absorbent article. The absorbent article may comprise a removable fastening member comprising a first surface, a second surface opposite to the first surface, a first end, a second end opposite to the first end, a first fastener comprising a first plurality of hooks on the first surface and positioned proximate to the first end, and a second fastener comprising a second plurality of hooks on the first surface and positioned proximate to the second end.
The present disclosure is directed, in part, to an absorbent article comprising a central lateral axis, a central longitudinal axis, a first end edge, a second end edge opposing the first end edge, a first side edge, a second side edge opposing the first side edge, a first waist region on a first side of the central lateral axis, a second waist region on a second side of the central lateral axis, and a crotch region extending intermediate the first waist region and the second waist region and crossing the central lateral axis. The absorbent article comprises a liquid permeable topsheet, a liquid impermeable backsheet, and an absorbent core positioned at least partially intermediate the topsheet and the liquid impermeable backsheet. The absorbent core comprises an absorbent material. The absorbent material may have a first width, in a direction parallel to the central lateral axis, in the first waist region. The absorbent material may have a second width, in the direction parallel to the lateral axis, in the second waist region. The absorbent material may have a third width, in the direction parallel to the lateral axis, in the crotch region. The first width and the second width may be greater than the third width. The first and second widths may the same, substantially the same, or different. The absorbent article comprises a pair of leg cuffs positioned proximal to the first and second side edges and a first wetness guard in the first waist region. The first wetness guard may comprise a first liquid impermeable material in a facing relationship with the topsheet and a second liquid permeable material forming a first portion of a wearer-facing surface of the absorbent article. The absorbent article may comprise a second wetness guard in the second waist region. The second wetness guard may comprise a third liquid impermeable material in a facing relationship with the topsheet and a fourth liquid permeable material forming a second portion of the wearer-facing surface of the absorbent article. The absorbent article may comprise a removable fastening member comprising a first surface, a second surface opposite to the first surface, a first end, a second end opposite to the first end, a first fastener comprising a first plurality of hooks on the first surface and positioned proximate to the first end, and a second fastener comprising a second plurality of hooks on the first surface and positioned proximate to the second end.
The present disclosure is directed, in part, to an absorbent article comprising a central lateral axis, a central longitudinal axis, a first end edge, a second end edge opposing the first end edge, a first side edge, a second side edge opposing the first side edge, a first waist region on a first side of the central lateral axis, a second waist region on a second side of the central lateral axis, and a crotch region extending intermediate the first waist region and the second waist region and crossing the central lateral axis. The absorbent article may comprise a liquid permeable, apertured or non-apertured topsheet. The topsheet may be hydrophilic or hydrophobic, or may have hydrophobic or hydrophilic portions or layers. The absorbent article may comprise a liquid impermeable backsheet, an acquisition material, and an absorbent core positioned at least partially intermediate the acquisition material and the liquid impermeable backsheet. The absorbent core comprises an absorbent material. The absorbent material may have a first width, in a direction parallel to the central lateral axis, in the first waist region. The absorbent material may have a second width, in the direction parallel to the lateral axis, in the second waist region. The absorbent material may have a third width, in the direction parallel to the lateral axis, in the crotch region. The first width and the second width may be greater than the third width. The first width and the second width may be the same, substantially the same, or different. The absorbent article comprises a pair of leg cuffs positioned proximal to the first and second side edges, respectively, and a first wetness guard in the first waist region. The first wetness guard may comprise a first liquid impermeable material in a facing relationship with the topsheet and a second liquid permeable material forming a first portion of a wearer-facing surface of the absorbent article. The absorbent article may comprise a second wetness guard in the second waist region. The second wetness guard may comprise a third liquid impermeable material in a facing relationship with the topsheet and a fourth liquid permeable material forming a second portion of the wearer-facing surface of the absorbent article. The first wetness guard overlaps a first portion of the absorbent core and the second wetness guard overlaps a second, different portion of the absorbent core. The first wetness guard may be a discrete component that is joined to a first portion of the topsheet and/or first portions of the leg cuffs. The second wetness guard may be a discrete component that is joined to a second portion of the topsheet and/or second portions of the leg cuffs. The absorbent article may comprise a removable fastening member comprising a first surface, a second surface opposite to the first surface, a first end, a second end opposite to the first end, a first fastener comprising a first plurality of hooks on the first surface and positioned proximate to the first end, and a second fastener comprising a second plurality of hooks on the first surface and positioned proximate to the second end. The absorbent article comprises an outer cover material joined to a non-absorbent core facing side of the backsheet. The outer cover material or the backsheet may comprise a first graphic in the first waist region. The outer cover material or the backsheet may comprise a second graphic in the second waist region. The second graphic may be a mirror image of the first graphic relative to the central longitudinal axis to indicate reversibility of the absorbent article to a caregiver.
The various absorbent articles may be placed in packages. The packages may be sold in arrays or on-line arrays.
BRIEF DESCRIPTION OF THE DRAWINGSWhile the specification concludes with claims particularly pointing out and distinctly claiming the subject matter which is regarded as forming the present invention, it is believed that the invention will be better understood from the following description which is taken in conjunction with the accompanying drawings in which the designations are used to designate substantially identical elements and in which:
FIG. 1 is a plan view of an example absorbent of the present disclosure;
FIG. 2 is a plan view of an example absorbent article of the present disclosure, wearer-facing surface facing the viewer;
FIG. 3 is a plan view of the absorbent article ofFIG. 2, garment-facing surface facing the viewer;
FIG. 4 is a cross-sectional view of the absorbent article ofFIG. 2, taken about line4-4;
FIG. 5 is a plan view of an example absorbent core for the absorbent articles of the present disclosure having an extended hourglass shape;
FIG. 6 is a plan view of another absorbent article of the present disclosure, wearer-facing surface facing the viewer;
FIG. 7 is a left side view of an example absorbent article comprising a discrete fastening member of the present disclosure;
FIG. 8 is another left side view of an example absorbent article of the present disclosure without a discrete fastening member;
FIG. 9 is a perspective view of an example absorbent article of the present disclosure comprising crotch folds created by crotch narrowing joints;
FIG. 9A is a plan view of an example absorbent of the present disclosure;
FIG. 10 is a plan view of an example absorbent article of the present disclosure illustrating crotch notches;
FIG. 11 is a plan view of an example absorbent article of the present disclosure, wearer-facing surface facing the viewer, and comprising two wetness guards;
FIG. 12 is a perspective view of an example absorbent article of the present disclosure, wearer-facing surface facing the viewer, and illustrating wetness guards;
FIG. 13 a is plan view of an example absorbent article of the present disclosure, wearer-facing surface facing the viewer, and illustrating two wetness guard configurations;
FIG. 14 is a plan view of an example absorbent article of the present disclosure, wearer-facing surface facing the viewer, and illustrating two wetness guard configurations;
FIG. 15 is a plan view of an example discrete wetness guard for use with the absorbent article ofFIG. 14;
FIG. 16 is a plan view of an example absorbent article of the present disclosure, wearer-facing surface facing the viewer, and illustrating two wetness guard configurations;
FIG. 17 is a schematic illustration of how the sleeve type wetness guard ofFIG. 16 would surround a portion of an absorbent article;
FIG. 18 is a plan view of an example of a discrete fastening member for an absorbent article of the present disclosure, garment-facing surface facing the viewer;
FIG. 19 is a plan view of an example of a discrete fastening member for an absorbent article of the present disclosure, wearer-facing surface facing the viewer;
FIG. 20 is a cross-sectional view of the discrete fastening member taken about line20-20 ofFIG. 19;
FIG. 21 is a plan view of an example of a discrete fastening member for an absorbent article of the present disclosure, garment-facing surface facing the viewer;
FIG. 22 is a plan view of an example of a discrete fastening member for an absorbent article of the present disclosure, wearer-facing surface facing the viewer;
FIG. 23 is a plan view of an example absorbent article of the present disclosure having umbilical cord notches;
FIG. 24 is a plan view of the example absorbent article ofFIG. 23, garment-facing surface facing the viewer;
FIG. 25 is a plan view of an example absorbent article of the present disclosure having umbilical cord projections;
FIG. 26 is a plan view of the example absorbent article ofFIG. 25, garment-facing surface facing the viewer;
FIGS. 27-29 are schematic illustrations of absorbent articles showing graphics and/or indicia, with their garment-facing surfaces facing the viewer;
FIG. 30 is a plan view of an example insert positioned on a wearer-facing surface of an absorbent article;
FIG. 31 is a plan view of an example insert for use with an absorbent article;
FIG. 32 is a cross-sectional example illustration of the insert, taken about line32-32 ofFIG. 31;
FIG. 32A is another cross-sectional example illustration of the insert, taken aboutline32A-32A ofFIG. 31;
FIG. 33 is a plan view of another example insert for use with an absorbent article;
FIG. 34 is a plan view of another example insert for use with an absorbent article;
FIG. 35 is a plan view of an example absorbent article, wearer-facing surface facing the viewer;
FIG. 36 is a perspective side view photograph of an example absorbent article;
FIG. 37 is a plan view of an example absorbent article, wearer-facing surface facing the viewer;
FIG. 38 is a front perspective view of an example absorbent article;
FIG. 39 is a side perspective view of an example absorbent article;
FIG. 40 is a plan view of an example absorbent article, wearer-facing surface facing the viewer;
FIG. 41 is a plan view of an example absorbent article, wearer-facing surface facing the viewer;
FIG. 42 is a perspective view photograph of an absorbent article with folded over cuffs, wearer-facing surface facing away from the surface on which the absorbent article is resting;
FIG. 43 is a plan view of an absorbent article with folded over cuffs;
FIG. 44 is an example cross-sectional view of the absorbent article prior to the cuffs being folded toward the longitudinal axis;
FIG. 45 is an example end view of the absorbent article ofFIG. 43 before any tack down bonds are applied;
FIG. 46 is a top view of an instrument used in the Crotch Compression Force Measurement Test; and
FIG. 47 is a side view the instrument used in the Crotch Compression Force measurement Test.
DETAILED DESCRIPTIONVarious non-limiting forms of the present disclosure will now be described to provide an overall understanding of the principles of the structure, function, manufacture, and use of the configurable absorbent articles disclosed herein. One or more examples of these non-limiting forms are illustrated in the accompanying drawings. Those of ordinary skill in the art will understand that the configurable absorbent articles specifically described herein and illustrated in the accompanying drawings are non-limiting example forms and that the scope of the various non-limiting forms of the present disclosure are defined solely by the claims. The features illustrated or described in connection with one non-limiting form may be combined with the features of other non-limiting forms. Such modifications and variations are intended to be included within the scope of the present disclosure.
As used herein, the terms “join” and “joined” encompass configurations whereby an element is directly secured to another element by affixing the element directly to the other element, and configurations whereby an element is indirectly secured to another element by affixing the element to intermediate member(s) which in turn are affixed to the other element.
As used herein, the term “array” means a display of packages comprising disposable absorbent articles of different sizes having like article constructions. Packages for the absorbent articles have the same brand and/or sub-brand, and the packages are oriented in proximity to each other in a given area of a retail store. An array is marketed as a line-up of products normally having like packaging elements (e.g., packaging material type, film, paper, dominant color, design theme, etc.) that conveys to consumers that the different individual packages are part of a larger line-up. Arrays often have the same brand, for example, “Pampers®” In other instances, the arrays may have brands from the same manufacturer, such as “Pampers®” and Luvs®, for example.
Arrays also often have the same trademarks, including trademarks of the brand, sub-brand, and/or features and/or benefits across a line-up.
As used herein, the term “on-line array” means an “array” distributed by a common on-line source.
Configurable absorbent articles that provide improved fit, more flexible application options, narrow crotch regions, bodily exudate containment and improved skin health for premature, NAS, and other babies (or other wearers) are provided herein.FIG. 1 is a plan view of anabsorbent article10 folded about its lateral axis, garment-facing surface of a first waist region or a front waist region facing the viewer.FIG. 2 is a plan view of theabsorbent article10 ofFIG. 1, with theabsorbent article10 laid flat with the elastics extended, wearer-facing surface facing the viewer.FIG. 3 is a plan view of theabsorbent article10 ofFIG. 2, with theabsorbent article10 laid flat with the elastics extended, garment-facing surface facing the viewer.FIG. 4 is a cross-sectional view of theabsorbent article10 ofFIG. 2, taken about line4-4. Theabsorbent article10 may comprise alateral axis12, alongitudinal axis14, a first waist region or afront waist region16, a second waist region or aback waist region18, and acrotch region20. In a reversible absorbent article, the “first” and “second”waist regions16 and18 may be referred to in the claims since the absorbent article can be applied in either direction. Theabsorbent article10 may have afirst wetness guard22 and asecond wetness guard24. In some instances, only one wetness guard may be provided on the absorbent articles of the present disclosure. The single wetness guard may be provided on either side of thelateral axis12 of theabsorbent articles10. Theabsorbent articles10 may also comprisecuffs26 or raised barriers for containing bodily exudates so that they may be absorbed by an absorbent core.
Theabsorbent articles10 may comprise afirst end edge28 on a first side of thelateral axis12 and asecond end edge30 on a second side of thelateral axis12. Theabsorbent articles10 may comprise afirst side edge32 on a first side of the centrallongitudinal axis14 and asecond side edge34 on a second side of the centrallongitudinal axis14. Theabsorbent articles10 may comprise a liquid permeable material or liquidpermeable topsheet36, a liquid impermeable material or liquidimpermeable backsheet38, and anabsorbent core40 positioned at least partially intermediate thetopsheet36 and thebacksheet38.
Thetopsheet36, thebacksheet38, and theabsorbent core40 may be manufactured of any suitable materials. Suitable topsheet materials may comprise porous foams, reticulated foams, apertured plastic films, or woven or nonwoven webs of natural fibers (e.g., wood or cotton fibers), synthetic fibers (e.g., polyester or polypropylene fibers), non-apertured material, apertured materials, apertured nonwoven materials, apertured nonwoven materials that are produced using an overbonding and ring rolling process, or a material having a combination of natural and synthetic fibers. Spunbond high loft materials may also be used, whether apertured or non-apertured. Thetopsheet36 may have an embossed pattern, graphics, patterned, indicia, and/or three-dimensional features, either along with or instead of apertures. In some instances, thetopsheet36 may be a planar topsheet. In other instances, the topsheet may be a topsheet like that disclosed in U.S. Patent Application Publication No. 2015/0250662, to Isele et al., filed on Mar. 2, 2015 or in U.S. Patent Application Publication No. 2016/0136014, to Arora et al., filed on Nov. 5, 2015. The topsheet may be hydrophobic or hydrophilic. If the topsheet is apertured, it may be desirably to have the topsheet by hydrophobic.
Suitable backsheet materials may comprise breathable materials or highly breathable materials that permit vapors to escape from theabsorbent article10 while still preventing, or at least inhibiting, bodily exudates from passing through the backsheet34 (i.e., liquid impermeable materials). Such materials may comprise nonwoven materials, woven materials, films, and/or laminates comprising a combination of one or more of these materials. Other backsheet materials may be non-breathable materials, such as films, for example.
One measure of the breathability of a backsheet or backsheet/outer cover nonwoven material laminate is the perviousness of the backsheet or the laminate to the passage of water vapor, reflected by the moisture vapor transmission rate (MVTR) of the backsheet or laminate. The MVTR of the laminate or backsheet may be in the range of about 500 g/m2/24 hr to about 5000 g/m2/24 hr, about 1000 g/m2/24 hr to about 4000 g/m2/24 hr, or about 2000 g/m2/24 hr to about 3000 g/m2/24 hr, specifically reciting all 0.1 g/m2/24 hr increments within the above-referenced ranges and all ranges formed therein or thereby.
The MVTR can be determined by placing a quantity of a hydrophilic material, such as calcium chloride, into a non-porous, open-top vessel (not shown) having an outwardly-extending flange around the vessel opening. A portion of the material for which the MVTR is to be determined is placed in overlying relationship relative to the vessel opening and is in contact with the flange of the vessel to completely cover the open end of the vessel. An annular gasket and an annular retaining ring are then placed over the material to be tested and are securely clamped to the vessel flange by any convenient clamping arrangement, to tightly and completely seal the periphery of the vessel opening in order that transmission of air or moisture vapor can only occur through the material being tested. The resulting assembly is then weighed to determine the initial weight of the vessel and its contents.
After the initial weight has been determined, the assembly is placed in a chamber having a constant temperature (40° C.) and a constant humidity (75% relative humidity). The vessel is maintained under those atmospheric conditions for a period of five (5) hours, after which it is removed from the chamber, wrapped tightly with an impervious film to prevent transfer of moisture into and out of the vessel, and is allowed to reach thermal equilibrium with the ambient atmosphere in which the weigh balance is located. Thermal equilibrium is achieved in about 30 minutes, after which the film overwrap is removed from the vessel, which is again weighed to determine the final weight of the vessel and its contents.
The MVTR is calculated by the following formula, which provides the MVTR in g/m2/24 hr:
A suitableabsorbent core40 for use in theabsorbent articles10 of the present disclosure may comprise anyabsorbent material42 which is generally compressible, conformable, non-irritating to the wearer's skin, and capable of absorbing and retaining bodily exudates. In addition, the configuration and construction of theabsorbent core40 may also be varied (e.g., the absorbent core(s) or other absorbent structure(s) may have varying caliper zones, hydrophilic gradient(s), a superabsorbent gradient(s), or lower average density and lower average basis weight acquisition zones; or may comprise one or more layers or structures). In other instances, the configuration and construction of theabsorbent core40 may be uniform and homogeneous, such that theabsorbent article10 can be reversible. In such an instance, theabsorbent material42 may be uniform and homogeneous (i.e., not profiled). In some forms, theabsorbent core40 may have an hourglass shape, an extended hourglass shape, or rectangular shape, for example.FIG. 5 is a plan view of an exampleabsorbent core40 having an extended (extended about the longitudinal axis14) hourglass shape. In an instance, theabsorbent material42 may have an hourglass shape and theabsorbent core40 may be rectangular (i.e., the core bag is rectangular and theabsorbent material42 has an hourglass shape). Theabsorbent material42 and/or theabsorbent core40 as a whole (including the core bag) may have a first width, in a direction parallel to thelateral axis12, in thefirst waist region16, may have a second width, in the direction parallel to thelateral axis12, in thesecond waist region18, and may have a third width, in the direction parallel to thelateral axis12, in thecrotch region20. The first and second widths may be greater than the third width. The first and second widths may be the same, substantially the same, or different. In some instances, theabsorbent material42 may have the shape illustrated inFIG. 5 that is then surrounded by a rectangular core bag.
Theabsorbent material42 may comprise superabsorbent polymers, foams, air-felt (cellulosic material), or mixtures thereof. In some forms theabsorbent material42 may comprise less than 30%, less than 35%, less than 40%, at least 40%, at least 50%, at least 75%, at least 80%, at least 85%, at least 90%, at least 95%, at least 97%, at least 98%, at least 99%, or 100% superabsorbent polymers, by weight of the absorbent material. In other forms, theabsorbent material42 may only comprise air-felt and may be free of, or substantially free of (e.g., less than 5% by weight of the absorbent material) any superabsorbent polymers. Theabsorbent material42 may have air-felt and less than 15% of superabsorbent polymers, less than 10% of superabsorbent polymers, less than 5% of superabsorbent polymers, less than 3% of superabsorbent polymers, or less than 1% of superabsorbent polymers. In other forms, theabsorbent material42 may comprise a mixture of air-felt and superabsorbent polymers (e.g., 30% to 70% air-felt and 30% to 70% superabsorbent polymers).
Referring toFIG. 4, theabsorbent material42 may be enclosed in acore bag44. Thecore bag44 may comprise afirst substrate46 at least partially on a first side of theabsorbent material42 and asecond substrate48 at least partially on a second side of theabsorbent material42. Thefirst substrate46 may form a C-wrap around portions of theabsorbent material42 and thesecond material48 to enclose theabsorbent material42. In other instances, the core wrap may have any suitable configuration known to those of skill in the art. In some forms, theabsorbent core40 may comprise one or more absorbent material free areas or channels, or substantially absorbent material free areas (e.g., areas with substantially no superabsorbent polymers or air-felt). In this instance, thefirst substrate46 may be joined, bonded, or glued to thesecond substrate48 in these areas or channels. In other forms, channels may be embossed into theabsorbent core40. Some example channel and absorbent core configurations are described in further detail in U.S. Pat. Nos. 8,979,815, 9,216,118, and 9,216,116.
Referring toFIGS. 2 and 4, theabsorbent articles10 may comprise one ormore acquisition materials50. Theabsorbent articles10 may also comprise one or more optional distribution materials51 (FIG. 4) either between thetopsheet32 and theacquisition material50 or between theacquisition material50 andcore bag44. In some instance, theacquisition material50 and/or thedistribution material51 may extend the full width and/or length of thecore bag44. In other instances, theacquisition material50 and/ordistribution material51 may extend less than the full width and/or length of thecore bag44. Theacquisition material50 or thedistribution material51 may have a rectangular shape, an hourglass shape, or an extended hourglass shape, for example. Theacquisition material50 may be used to aid thetopsheet36 in acquiring bodily exudates and moving the bodily exudates into theabsorbent core40. Thedistribution material51, if provided, may help theabsorbent articles10 distribute bodily exudates above theabsorbent core40. As an example, the acquisition material may be a nonwoven material and the distribution material may be cross-linked cellulosic fibers, tissue, or another nonwoven material, for example. In some instances, only an acquisition material may be provided, only a distribution may be provided, or neither may be provided depending on the desired properties of a particular absorbent article.
Referring toFIGS. 2 and 4, the pair ofcuffs26 may extend at least partially between, or fully between, thefirst end edge28 and thesecond end edge30. Thecuffs26 may or may not have one ormore elastics52. In some instances, if thecuffs26 do not have elastics52 they may be pre-strained prior to being joined to theabsorbent articles10 so that they may still stand (i.e., extend upwardly) relative to thetopsheet36. In other instances, thecuffs26 that are free of elastics may not be pre-strained. In some instances, only a single pair of cuffs may be provided to aid in helping narrow thecrotch region20. In some forms, referring toFIG. 6, a second pair ofcuffs27 may be provided in addition to the first pair ofcuffs26. In an instance, the second pair ofcuffs27 may be free of elastics and may or may not be pre-strained. In other instances, each of thecuffs26 or27 may have one ormore elastics52 and53, respectively. Theelastics52 and/or53 may cause the cuffs to stand (i.e., extend upwardly) relative to thetopsheet36. Theelastics52 and53 may have any suitable length along thelongitudinal axis14. In a form, the cuffs26 (or27) may each have three longitudinally extending folds (labeled F inFIG. 4) to allow them to stand and extend a suitable distance from thetopsheet36. Glue or bonding of the cuffs is indicated at54 inFIG. 4. In other forms, thecuffs26 or27 may have any suitable configuration. The cuffs generally aid bodily exudate containment to the area of theabsorbent core40 and reduce side edge leakage. Contracted and/or standing portions of thecuffs26 and/or27 may be more prominent on a first side of thelateral axis12 or the second side of thelateral axis14. In other instances, the contracted and/or standing portions of thecuffs26 and/or27 may be the same on both sides of the centrallateral axis12. In some instances, thecuffs26 and/or27 may extend the same distance on each side of the centrallateral axis12. In some instances, theabsorbent articles10 may not comprise any cuffs.
In other instances, theabsorbent articles10 may not comprise any cuffs, but some form of raised barriers may be used in their place. A pair of raised barriers may be attached to thetopsheet36, positioned under thetopsheet36, or formed from a portion of thetopsheet36 and/or acquisition or distribution materials. The raised barriers may comprise flexible foams, liquid impermeable materials, nonwoven materials, films, and/or other suitable materials. The raised barriers may be “raised” relative to thetopsheet36 and may act in a similar fashion as thecuffs26 and27, thereby causing bodily exudates to remain over theabsorbent core40 such that they can be absorbed by theabsorbent core40. The raised barriers may have any suitable thickness measured in a direction parallel to thelateral axis12, such as 2 mm to 10 mm, for example. In some instances, one raised barrier may be provided and this single raised barrier may fully surround, or partially surround, theabsorbent core40 or portions thereof. The raised barriers may be raised a suitable amount from thetopsheet36 to contain the bodily exudates within theabsorbent articles10, such as in the range of 1 mm to 30 mm, or 2 mm to 20 mm, for example. Further details regarding raised barriers, including example structures and shape can be found in U.S. Patent Appln. Publ. No. 2014/0171898 to Greening I I, et al. The raised barriers may be used with at least one pair of cuffs as well for better containment. The cuffs may be positioned laterally inboard or laterally outboard of the raised barriers. The raised barriers or thecuffs26,27 may be referred to as “bodily exudate containment means”.
Referring toFIGS. 1, 3, and 4, an outercover nonwoven material58 may be positioned on a non-absorbent core-facing side of thebacksheet38. The outercover nonwoven material58 may be joined to thebacksheet38 using an adhesive56, for example. The outercover nonwoven material58 may be formed of one or more layers and typically may be a soft material. The outercover nonwoven material58 may comprise a plurality of bonds, embossments, or three-dimensional features to provide a more consumer appealing appearance or for other reasons.
FIG. 7 is a side view of the absorbent article ofFIG. 1 with afastening member100.FIG. 8 is a side view of the absorbent article ofFIG. 1 without thefastening member100.FIG. 9 is a perspective view of the absorbent article ofFIG. 1, garment-facing surface facing the viewer.
Referring toFIGS. 2, 3, and 6-9, theabsorbent articles10 of the present disclosure may comprise a pair of crotch narrowing joints60 in thecrotch region20. In other forms, only one side of thecrotch region20 may comprise a crotch narrowing joint60. The crotch narrowing joints60 may be created when a wearer-facing portion of the outercover nonwoven material58 or a wearer-facing portion of thecuffs26 or27 (if a second set of cuffs is provided) is joined to a standing portion or other portion of thecuffs26 or27 (if a second set of cuffs is provided) or to a portion of thetopsheet36. The joint may be an adhesive bond, a mechanical bond, a thermal bond, and/or any other suitable type of bond, or joinder. In other instances, the crotch narrowing joints60 may be formed by joining a wearer-facing portion of the backsheet38 (or laminate comprising thebacksheet38 and outer cover nonwoven material58) to a portion of thecuffs26 or27 or to a portion of thetopsheet36. In any event, portions of the outercover nonwoven material58 proximate to the first and second side edges32 and34 may be joined directly or indirectly to a portion of thecuffs26 or27 or a portion of thetopsheet36. By providing these crotch narrowing joints60, theabsorbent articles10 are able to achieve a narrow folded crotch width, (“W” inFIG. 1) at or proximate to thelateral axis12. This narrow folded crotch width may be especially important for premature babies for a number of reasons. First, smaller babies have less space in between their legs. Thus, the smaller the folded crotch width, the better the absorbent articles will fit them without applying any leg separating forces on their legs, thereby allowing the legs to rest in a comfortable position, such as near the body midline, for example. Second, in a typical diaper, the inner thigh areas of the legs of the baby may be in contact with portions of the cuffs and/or the backsheet. In theabsorbent articles10 of the present disclosure the baby's inner thigh areas may be in contact with portions of thecuffs26 and/or27 and portions of the soft outercover nonwoven material58, thereby providing a more comfortable wearer experience and at times reducing inner thigh chafing.
Referring toFIGS. 7-9, the crotch narrowing joints60 cause portions of thecrotch region20 to fold inwardly toward thelongitudinal axis14, when the elastics of the cuffs are at least partially relaxed, thereby creating crotch folds61. Referring toFIG. 1, these crotch folds61 provide for the narrow folded crotch width W. The crotch folds61 also provide theabsorbent article10 withangled portions63 in thecrotch region20. Theangled portions63 may have an angle in the range of about 10 degrees to about 80 degrees, about 15 degrees to about 75 degrees, about 20 degrees to about 70 degrees, about 30 degrees to about 60 degrees, about 40 degrees to about 60 degrees, relative to thelateral axis12, specifically reciting all 0.1 degree increments within the specified ranges and all ranges formed therein or thereby. All angles are measured according to the Folded Crotch Angle Test herein.
Referring toFIG. 5, in addition to the crotch narrowing joints60, theabsorbent core40 may have an extended hourglass shape withleg notches62 elongated in a direction parallel to thelongitudinal axis14. This feature allows for the legs (“L”) to be positioned at multiple locations within theleg notches62 to fit different wearers and situations. The legs of a wearer, for example, may be positioned more proximate to afirst end edge41 or more proximate to asecond end edge43 of theabsorbent core40 to suit certain situations or positions of the baby. As referenced above, theacquisition materials50 and/ordistribution materials51 may have a similar shape or a different shape. Theabsorbent core40 may have a width measured along itslateral axis12′ in the range of about 5 mm to about 300 mm, about 10 mm to about 100 mm, about 15 mm to about 75 mm, about 15 mm to about 40 mm, about 15 mm to about 25 mm, or about 20 mm, specifically reciting all 0.1 mm increments within the specified range and all ranges formed therein or thereby. Theabsorbent core40 may have a width measured along either thefirst end edge41 or thesecond end edge43 in the range of about 15 mm to about 500 mm, about 20 mm to about 300 mm, about 25 mm to about 100 mm, about 30 mm to about 50 mm, about 35 mm to about 40 mm, or about 38 mm, specifically reciting all 0.1 mm increments within the specified range and all ranges formed therein or thereby.
In some forms, referring toFIG. 10, instead of the crotch narrow joints being provided,crotch notches64 may be cut out of theabsorbent articles10,absorbent cores40 thereof, and/or other components thereof (e.g., acquisition material50) in areas proximate to thelateral axis12. In other forms, thecrotch notches64 may instead be formed in components of the absorbent articles before or during manufacture. Thecrotch notches64 may have any suitable size and shape to achieve a narrow folded crotch width. Some example shapes are illustrated inFIG. 10. Thecrotch notches64 may be formed in the topsheet, the backsheet, the acquisition material, the outer cover nonwoven material, and/or portions of the cuffs, for example. Thecrotch notches64 may be used with the hourglass or extended hourglass shaped absorbent cores disclosed herein. Theacquisition material50 and/or distribution material may also be hourglass shaped, for example. Thecrotch notches64 may be cut out so that a chassis of the absorbent article is hourglass shaped, or has an extended (along the longitudinal axis14) hourglass shape.
The crotch narrowing joints60 may be an optional feature. It has been discovered that a narrow Folded Crotch Width, in some instances, may still be achieved even without the crotch narrowing joints60. This narrow Folded Crotch Width may be attributable to the elongated hourglass shapes of the absorbent core (seeFIG. 5) in combination with elastic contraction from at least one pair of leg cuffs26, and possibly from two pairs of leg cuffs26 and27. In such an instance, the absorbent article, in a folded configuration, may take on the example shape ofFIG. 9A.FIG. 9A illustrates the narrow Folded Crotch Width as “W”.
The folded crotch width, (i.e., W inFIG. 1) measured according to the Folded Crotch Width Test herein, may be less than about 150 mm, less than about 100 mm, less than about 75 mm, less than about 50 mm, less than about 45 mm, less than about 50 mm, less than about 40 mm, less than about 35 mm, less than about 30 mm, less than about 25 mm, less than about 20 mm, or less than about 15 mm, depending on the size of theabsorbent article10. The folded crotch width, measured according to the Folded Crotch Width Test herein, may be in the range of about 10 mm to about 150 mm, about 10 mm to about 100 mm, about 10 mm to about 75 mm, about 15 mm to about 50 mm, about 15 mm to about 45 mm, less than 45 mm, less than 40 mm, less than 35 mm, about 20 mm to about 40 mm, about 25 mm to about 35 mm, or about 15 mm to about 30 mm, for example, specifically reciting all 0.1 mm increments within the above-specified ranges and all ranges formed therein or thereby.
As discussed above, referring toFIGS. 2, 4, 6, and 11, one ormore wetness guards22,24 may be provided on theabsorbent article10. In general, the wetness guards22 and24 are provided to establish a barrier between the lower back, waist, and/or legs of the baby and portions of thetopsheet36 that are soiled with bodily exudates. Afirst wetness guard22 may be positioned on the first side of the centrallateral axis12 and asecond wetness guard24 may be positioned on the second side of the centrallateral axis12. As mentioned previously, only one wetness guard (either22 or24) may be provided in certainabsorbent articles10. In some forms, other wetness guards may also be provided either in addition to the wetness guards22 and24, or in lieu of them. As an example, some wetness guards may extend longitudinally at least partially between thefirst end edge28 and thesecond end edge30. The wetness guards22 and24 may have any suitable width (measured in a direction parallel to the central lateral axis12) and the length (measured in a direction parallel to the central longitudinal axis14). In some instances, the wetness guards22 and24 may have a first width and theabsorbent articles10 may have a second width. The first width may be the same as or different than (larger or smaller) than the second width. For example, a wetness guard may only extend intermediate thecuffs26 or thecuffs27 and not extend all the way to the first and second side edges32 and34. In some instances, one of the wetness guards22 or24 may have a first width and the other of the wetness guards22 or24 may have a second width. The first and second widths may be the same or different. In some instances, one of the wetness guards22 or24 may have a first length (measured in a parallel to the central longitudinal axis14) and the other of the wetness guards22 or24 may have a second length. The first and second lengths may be the same or different. Thefirst wetness guard22 may have a longer length than thesecond wetness guard24, or vice versa. In some instances, the wetness guards22 and24 may have the same length such that theabsorbent article10 may be reversible. Thefirst wetness guard22 may overlap a first portion of the absorbent core and thesecond wetness guard24 may overlap a second portion of the absorbent core.
Referring toFIG. 11, thefirst wetness guard22 may have afirst end66 and asecond end68. Thefirst end66 may be positioned proximate to thefirst end edge28 of theabsorbent article10. Thesecond end68 may be positioned intermediate thefirst end edge28 and thelateral axis12. Although thesecond end68 of thefirst wetness guard22 is illustrated as being straight, it may also be concave or convex relative to thelateral axis12 or may have any other suitable shape. Thefirst wetness guard22 may be positioned over at least a portion of thetopsheet36 and may overlap or cross thelongitudinal axis14. In other instances, thewetness guard22 may be positioned over a portion of thetopsheet36 and portions of thecuffs26,27 or the raised barriers.
Again referring toFIG. 11, afirst portion70 of thefirst wetness guard22 may be joined to thecuffs26,27, the raised barriers, thetopsheet36, and/or thebacksheet38 proximate to thefirst end edge28 of theabsorbent article10. Asecond portion72 of thefirst wetness guard22 may be joined to thecuffs26,27, the raised barriers, thetopsheet36, and/or thebacksheet38 proximate to thefirst side edge32 of theabsorbent article10. Athird portion74 of thefirst wetness guard22 may be joined to thecuffs26,27, the raised barriers, thetopsheet36, and/or thebacksheet38 proximate to thesecond side edge34 of theabsorbent article10. The joining may comprise using mechanical joining or adhesive joining, for example. The joining may be intermittent or continuous. Through this joining, referring toFIG. 12, thesecond end68 may be free of attachment to thetopsheet36, thecuffs26,27, and the raised barrier such that a pocket,71, is created at least between a non-wearer-facing surface of thefirst wetness guard22 and thetopsheet36. In other instances, thesecond end68 may be joined to, or partially joined to, thetopsheet36, thecuffs26,27, and/or the raised barriers, for example. A pocket may also be created by thesecond wetness guard24 in a similar fashion as thepocket71 of thewetness guard22.
Still referring toFIG. 11, thesecond wetness guard24 may have afirst end76 and asecond end78. Thefirst end76 may be positioned proximate to thesecond end edge30 of theabsorbent article10. Thesecond end78 may be positioned intermediate thesecond end edge30 and thelateral axis12. Although thesecond end78 of thesecond wetness guard24 is illustrated as being straight, it may also be concave or convex relative to thelateral axis12 or may have any other suitable shape. Thesecond wetness guard24 may be positioned over at least a portion of thetopsheet36 and may overlap or cross thelongitudinal axis14. In other instances, thewetness guard24 may be positioned over the portion of thetopsheet36 and portions of thecuffs26,27 or the raised barriers.
Afirst portion80 of thesecond wetness guard24 may be joined to thecuffs26,27, the raisedbarriers56, thetopsheet36, and/or thebacksheet38 proximate to thesecond end edge30 of theabsorbent article10. Asecond portion82 of thesecond wetness guard24 may be joined to thecuffs26,27, the raised barriers, thetopsheet36, and/or thebacksheet38 proximate to thefirst side edge32 of theabsorbent article10. Athird portion84 of thesecond wetness guard22 may be joined to thecuffs26,27, the raised barriers, thetopsheet36, and/or thebacksheet38 proximate to thesecond side edge34 of theabsorbent article10. The joining may comprise using mechanical joining or adhesive joining, for example. The joining may be intermittent or continuous. Through this joining, thesecond end78 may be free of attachment to thetopsheet36, thecuffs26,27, and the raised barrier, such that a pocket (likepocket71 ofFIG. 12) is created at least between a non-wearer-facing surface of thesecond wetness guard24 and thetopsheet36. In other instances, thesecond end78 may be joined to, or partially joined to, thetopsheet36, thecuffs26,27, and/or the raised barriers, for example.
In other instances, the first and/or the second wetness guards22 and24 may be joined to thetopsheet36, thecuffs26,27, the raised barriers, and/or thebacksheet38 at any suitable locations on a wearer-facing surface of theabsorbent article10. In an instance, all, or some of the perimeters of the wetness guards22 and24 may be joined to the wearer-facing surface. In other instances, all or some of non-perimeter areas may be joined to the wearer-facing surface. The twowetness guards22 and24, if both are provided, may be joined to a portion of the wearer-facing surface in the same fashion or in different fashions. In an instance, one or both of the wetness guards22 and24 may be discrete components that are not joined to theabsorbent article10 in a package, but instead are provided as a discrete component. Nurses or caregivers may then position the wetness guard or guards on portions of the wearer-facing surface of theabsorbent articles10 as appropriate. The wetness guards22 and24 may have a space between themselves and the first and second end edges28 and30. Stated another way, the most longitudinally outward portions of each wetness guard does not have to be positioned on the first end edges28 or thesecond end edge30, but instead a gap may exist, such as a 0.5 inch gap, for example.
The wetness guards22 and24 may have the same construction or a different construction. Referring toFIGS. 2 and 4, thewetness guard22 and24 may each comprise a laminate comprising a first liquid impermeable material (or substantially liquid impermeable material)86 and a second liquidpermeable material88. The wetness guards may also comprise other liquid permeable or impermeable layers. Thelayers86 and88 may be joined together in any suitable fashion, such as through the use of an adhesive90. The adhesive90 may be continuous or discontinuous and may be slot coated or spirally applied, for example. The first liquidimpermeable material86 may comprise one or more nonwoven materials or films or a nonwoven and a film as a laminate. The second liquidpermeable material88 may comprise one or more nonwoven materials or non-film materials. The first liquidimpermeable material86 may face a portion of thetopsheet36, while the second liquidpermeable material88 may face the wearer or form a portion of a wearer-facing surface of the absorbent article. As such, the first liquidimpermeable material86 may be used to create a barrier between the portion of thetopsheet36 under the wetness guards and the second liquidpermeable material88 to keepmaterial88 dry and sterile. The second liquidpermeable material88 may be used to provide a lower back, waist, and/or legs of a baby with a soft, dry, sterile, and comforting surface.
The first and second wetness guards22 and24 may form a crotch receiving area92 in theabsorbent article10. The crotch receiving area92 is the area between the twowetness guards22 and24 where a baby's crotch area is positioned when theabsorbent article10 is positioned on the baby. The crotch receiving area92 between the first and second wetness guards22 and24 may be any suitable size (length or width) for a particular size baby. A ratio of the surface area of the crotch receiving area92 to the wetness guards22 and24 (together or separate if only one is provided) may be about 7:1, about 6:1, about 5:1, about 4:1, about 3:1, about 2:1, about 1:1, or about 0.5:1, or may be in the range of about 10:1 to about 1:1, specifically reciting all 0.1 increments of the ratios specified above and all ratios formed within the specified range. The crotch receiving area92 may have an area in the range of about 25 cm2to about 750 cm2, about 40 cm2to about 500 cm2, about 50 cm2to about 400 cm2, about 50 cm2to about 250 cm2, about 50 cm2to about 200 cm2, about 50 cm2to about 150 cm2, about 50 cm2to about 100 cm2, or about 60 cm2to about 80 cm2, for example, specifically reciting all 0.1 cm2increments within the specified ranges and all ranges formed therein or thereby.
The absorbent article, when laid flat, elastic contraction pulled out, may have a length, in a direction parallel to a centrallongitudinal axis14, of less than 500 mm, less than 400 mm, less than 300 mm, less than 275 mm, but at least 100 mm. The absorbent article, when laid flat, elastic contraction pulled out, may have a width, in a direction parallel to a centrallateral axis12 of less than 200 mm, less than 150 mm, less than 130 mm, less than 100 mm, but at least 50 mm.
To create the first and/or second wetness guards22 and24, thebacksheet38 and the outercover nonwoven material58 may extend beyond the first and second end edges28 and30 and be folded over the wearer-facing side of theabsorbent article10. The folded over portions of thebacksheet38 and the outer cover nonwoven58 may be joined to thetopsheet36, portions of thecuffs26,27, the raised barriers, and/or thebacksheet38. As such, the folded over portion of thebacksheet38 may form the first liquidimpermeable material86 and the outercover nonwoven material58 may form the second liquidpermeable material88 of the wetness guards22 and24. In other instances, thebacksheet38 and the outercover nonwoven material58 may not be joined to a portion of the wearer-facing surface, but instead may merely be folded over the wearer-facing surface.
In another instance, the first and/or second wetness guards22 and24 may be formed from discrete laminates each comprising the first liquidimpermeable material86 and the second liquidimpermeable material88. These discrete laminates may be joined to thetopsheet36, portions of thecuffs26,27, portions of the raised barriers, and/or to thebacksheet38.
Theabsorbent article10 may have a wearer-facing surface area (the entire wearer-facing surface including areas of the wetness guards) in the range of about 150 cm2to about 1,500 cm2, about 175 cm2to about 1,000 cm2, about 200 cm2to about 800 cm2, about 200 cm2to about 500 cm2, about 200 cm2to about 400 cm2, about 200 cm2to about 300 cm2, about 200 cm2to about 250 cm2, about 210 cm2to about 240 cm2, or about 225 cm2, for example, specifically reciting all 0.1 cm2increments within the specified ranges and all ranges formed therein or thereby.
The wetness guards22 or24 may have an area in the range of about 10 cm2to about 800 cm2, about 15 cm2to about 600 cm2, about 15 cm2to about 400 cm2, about 20 cm2to about 300 cm2, about 20 cm2to about 200 cm2, about 20 cm2to about 100 cm2, about 20 cm2to about 75 cm2, or about 25 cm2to about 70 cm2, for example, specifically reciting all 0.1 cm2increments within the specified ranges and all ranges formed therein or thereby. As mentioned above, thewetness guard22 may have an area that is the same or different than thewetness guard24, if both are provided in an absorbent article.
In another instance, referring toFIG. 13, at least one of or both of the wetness guards22 and24 may only be attached to thefirst side edge32, thesecond side edge34, and/or a portion of theabsorbent article10 proximate to one of the side edges32 and34, for example. In other instances, the wetness guards22 and/or24 may be attached to the outercover nonwoven material58, thebacksheet38, thetopsheet34, one of the raised barriers, and/or one of the cuffs (26 or27), for example. In such an instance, thewetness guard22 inFIG. 13 may be configured to be folded over into the position illustrated in, for exampleFIG. 2. Thewetness guard24 may have a similar configuration as the illustratedwetness guard22 or may be provided as described with reference toFIG. 2. The wetness guard22 (and/or thewetness guard24 if provided in the same configuration) may comprise afastener23, such as a plurality of hooks or an adhesive, for example, such that when thewetness guard22 is folded over theabsorbent article10, it can be joined by thefastener23 to a portion of the wearer-facing surface of theabsorbent article10. The materials of thewetness guard22 may be the same as or similar to that described above.
In still other instances, referring toFIGS. 14 and 15, one or both of the wetness guards22 and24 may be a discrete component (FIG. 15) from the absorbent article10 (FIG. 14) and may be configured to be placed on theabsorbent article10, in for example, the positions illustrated inFIG. 2, or in other positions as desired by the nurse or caregiver. In some instances, as illustrated inFIGS. 14 and 15, onewetness guard22 may be a discrete component and theother wetness guard24 may be joined to the cuffs26 (or27), the raised barrier, thetopsheet36, and/or thebacksheet38. The discrete wetness guard or guards may be packaged with theabsorbent articles10 or may be packaged and/or sold separately. The discrete wetness guard22 (and/or thewetness guard24, if discrete) may have afirst fastener23 and asecond fastener25. The first andsecond fasteners23 and25 may be used to join thediscrete wetness guard22 to a portion of the wearer-facing surface of theabsorbent article10 as desired and maintain thewetness guard22 in position during use of theabsorbent article10. The materials of the wetness guard may be the same as or similar to that described above.
In yet other instances, referring toFIGS. 16 and 17, at least one of, or both of, the wetness guards22 and24 may be provided in a sleeve form. The sleeve may be positioned on theabsorbent article10 in a package, positioned separately from theabsorbent article10 in the package, or may be sold in a separate package. Once positioned on the absorbent article, the sleeve may be moveable in the directions ofarrows94 and96 to allow a nurse or caregiver to position thewetness guard22 as desired. In some instances, as illustrated inFIG. 16, onewetness guard24 may be joined to the wearer-facing surface and anotherwetness guard22 may take the form of a sleeve. In some forms, the materials of the wetness guard may be the same as or similar to that described above. In other forms, only portions of the wetness guard positioned over the wearer-facing surface may have the wetness guard constructions described herein, with other portions (i.e., portions wrapped around a non-wearer-facingsurface98 of the absorbent article10) being constructed of other materials, such as nonwoven materials without films, for example.FIG. 17 illustrates an example of how thewetness guard22 in the form of a sleeve would surround theabsorbent article10.
Theabsorbent articles10 of the present disclosure may have one or more fastening members. The fastening members may be related art fastening members (i.e., taped fastening members) that are permanently attached to theabsorbent article10 in theback waist region18 and are engaged by fasteners (e.g., hooks) to a garment-facing surface of the front waist region or vice versa. In some instances, a landing zone may be provided on the garment-facing surface of thefront waist region16 for such engagement. In other instances the fastening members may be fullyremovable fastening members100. The fastening members may be stretch panels that may be discrete elements. Referring toFIGS. 18 and 19, thefastening members100 may each comprise afirst surface102, asecond surface104, afirst end106, and asecond end108. Thefirst surface102 may be opposite to thesecond surface104 and thefirst end106 may be opposite to thesecond end108. Thefastening members100 may comprise afirst fastener110 configured to engage a first portion of the outercover nonwoven material58 or a first portion of a landing zone and positioned on thefirst surface102. Theabsorbent article10 may be free of a landing zone. Thefastening members100 may comprise asecond fastener112 configured to engage a second, different portion of the outercover nonwoven material58 and positioned on thefirst surface102. In some instances, it may be desirable to provide thefirst fastening member110 on thefirst surface102 and thesecond fastening member112 on thesecond surface104, so that the fastener can be folded into a loop to hold a tube, for example. The first portion of the outercover nonwoven material58 may be in thefront waist region16, theback waist region18, or thecrotch region20. Likewise, the second portion of the outercover nonwoven material58 may be in thefront waist region16, theback waist region18, or thecrotch region20. Thefastener110 may be positioned proximate to thefirst end106 and thefastener112 may be positioned proximate to thesecond end108. In some instances, only one fullyremovable fastening member100 may be provided on anabsorbent article10 and the other fastening member may be permanently joined to the absorbent article on at least one of its ends.
Since thefastening members100 are removable from theabsorbent article10, they can be fastened as desired or as needed by a nurse or caregiver. In some instances, the nurse or caregiver may remove thefastening members100 from theabsorbent article10 and not use them if the baby is in a certain position, for example. In other instances, the nurse or caregiver may only use one of thefastening members100 if the baby is in another certain position, for example.
Referring toFIG. 20, thefastening members100 may comprise a first nonwoven orother substrate114, a second or othernonwoven substrate116, and anelastic material117 positioned at least partially intermediate the first andsecond substrates114 and116. The elastic material may comprise an elastic nonwoven material, an elastic film, or elastic strands, for example. The elastic material may be apertured or micro-apertured to promote breathability. In other instances, the fastening members may comprise one or more substrates and may not comprise an elastic material.
Referring toFIGS. 21 and 22, a middle portion118 (e.g., between the first and second ends106 and108) of thefastening member100 may define one ormore slots120 or apertures therein. The slots orapertures120 may have any suitable size and/or shape. In certain instances, premature, NAS babies, and other babies are on feeding tubes, corded monitoring device (e.g., heart rate monitor), corded life support device, or the like. These tubes and cords may be positioned through theslots120 or apertures to help hold the tubes and cords in place. In some instances, themiddle portion118, or other portions, of thefastening member100 may be formed of a highly breathable material, such as a highly breathable film, nonwoven, film/nonwoven laminate, or an apertured film or apertured nonwoven material, for example.
In some countries, it may be desirable to allow air to flow to the belly button area after birth when a portion of the umbilical cord on the baby is drying out and/or healing. Referring toFIGS. 23 and 24, a firstumbilical cord notch122 may be defined in thefirst end edge28 in thefront waist region16 and a secondumbilical cord notch124 may be defined in thesecond end edge30 in theback waist region18. The first and secondumbilical cord notches122 and124 may have any suitable size, shape, and/or depth relative to the first and second end edges28 and30, respectively. In some instances, only the first or the second umbilical cord notch may be provided. The benefit of having two umbilical cord notches is that theabsorbent article10 may be applied with thefront waist region16 on a front of a wearer or with thefront waist region16 on a back of the wearer. Stated another way, by providing the two umbilical cord notches, theabsorbent article10 may be reversible. The longitudinal axis14 (see e.g.,FIG. 2) may extend through the umbilical cord notches.
Referring toFIG. 24, first sides of thefastening members100 may be permanently fixed to a portion of theback waist region18 and may not be releasably joined to theabsorbent article10. The first side of thefastening members100 may be permanently fixed to the portions of theback waist region18 using one ormore bonds138, lines of adhesives, or may be otherwise permanently fixed. Second sides of thefastening members100 may comprise fasteners used to join the second sides of thefastening member100 to portion of thefront waist region16. Alternatively, the second sides of thefastening members100 may be permanently fixed to thefront waist region16 and the first sides of thefastening members100 may comprise fasteners used to join the first sides of thefastening members100 to theback waist region18.
In some countries, it may be desirable to cover up the belly button of a baby after birth. Referring toFIGS. 25 and 26, a firstumbilical cord projection126 may extend from thefirst end edge28 in thefront waist region16 and a secondumbilical cord projection128 may extend from thesecond end edge30 in theback waist region18. The first and secondumbilical cord projections126 and128 may have any suitable size, shape, and/or height relative to the first and second end edges28 and30, respectively. In some instances, only the first or the second umbilical cord projection may be provided. The benefit of having two umbilical cord projections is that theabsorbent article10 may be applied with thefront waist region16 on a front of a wearer or with thefront waist region16 on a back of the wearer. Stated another way, by providing the two umbilical cord projections, theabsorbent article10 may be reversible. The longitudinal axis14 (see e.g.,FIG. 2) may extend through the umbilical cord projections.
The umbilical cord projections may have one ormore slots130 or apertures defined therein. Theslots130 or apertures may have any suitable size and/or shape. In certain instances, premature, NAS babies, and other babies may be on feeding tubes, corded monitoring device (e.g., heart rate monitor), or the like. These tubes and cords may be positioned through theslots130 or apertures to help hold the tubes and cords in place.
In some instances, no umbilical cord notches or umbilical cord projections may be provided on an absorbent article (see e.g.,FIGS. 1 and 2). In still other instances, an umbilical cord notch may be provided on a first side of thelateral axis12 and an umbilical cord projection may be provided on a second side of thelateral axis12.
As mentioned above, it may be desirable to reduce contact with premature and NAS babies as much as feasible because of their delicate body and skin. On the other hand, it is also desirable to have the absorbent article on the baby to be as free of bodily exudates as possible to protect the baby's skin. In instances where the babies are positioned in incubators, conventional wetness indicators may not function adequately owing to the high humidity environment of the incubators. The present disclosure provides a way to solve these issues by providing the outercover nonwoven material58 and/or thebacksheet38 with a low opacity. By providing the outercover nonwoven material58 and/or thebacksheet38 with a low opacity, nurses are able to visually determine, without touching the baby, whether the absorbent articles need to be changed, thus not disturbing the baby if the absorbent article is not soiled or sufficiently soiled.
The opacity of thebacksheet38 may be in the range of about 10% to about 80%, about 15% to about 70%, about 20% to about 70%, or about 25% to about 70%, specifically reciting all 0.1% increments within the specified ranges and all ranges formed therein or thereby. All opacity % are determined using the Opacity Test herein.
The opacity of the outercover nonwoven material58 may be in the range of about 1% to about 50%, about 5% to about 30%, about 5% to about 25%, about 10% to about 20%, about 10% to about 15%, or may be less than about 30%, less than about 25%, less than about 20%, less than about 15%, or less than about 10%, specifically reciting all 0.1% increments within the specified ranges and all ranges formed therein or thereby. All opacity % are determined using the Opacity Test herein.
The opacity of both thebacksheet38 and the outercover nonwoven material58 measured as a laminate may be in the range of about 15% to about 95%, about 20% to about 80%, about 30% to about 70%, or about 40% to about 60%, specifically reciting all 0.1% increments within the specified ranges and all ranges formed therein or thereby. All opacity percentages are determined using the Opacity Test herein.
Either in addition to or in lieu of the low opacity outercover nonwoven material58 and/or thebacksheet38, theabsorbent article10 may comprise awetness indicator132, which may be positioned on a wearer-facing side of thebacksheet38 or in other suitable locations. Thus, as bodily exudates come into contact with the wetness indicator, the wetness indicator may change colors or appear or disappear to indicate to nurses or caregivers that the absorbent article is soiled and needs changed. In other instances, the wetness indicator may change colors, appear, or disappear based on temperature changes (caused by bodily exudates entering the absorbent article) within theabsorbent article10. In other instances, theabsorbent article10 may be free of a wetness indicator.
Theabsorbent articles10 may comprise lotions, ointments, skin protecting ointments, vitamins, anti-bacterial treatments, anti-microbial treatments, anti-fungal treatments, on thetopsheet36, leg cuffs26 and/or27, and/or other components to promote skin health for the baby.
PackageThe absorbent articles of the present disclosure, in their various forms, may be placed into packages. The packages may comprise films, for example. The packages may comprise indicia, brand names, claims, pictures, and/or graphics, relating to the absorbent articles. The absorbent articles within the packages may have all or some of the features disclosed herein. In some instances, the packages may comprise absorbent articles with different features or sizes in the same package or in different packages. As an example, a package may comprise a plurality of absorbent articles and a plurality of discrete fastening members and/or discrete wetness guards configured for use with the absorbent articles. At least some of the plurality of fastening members may each comprise a first surface, a second surface opposite to the first surface, a first end, a second end opposite to the first end, a first fastener comprising a first plurality of hooks on the first surface and positioned proximate to the first end, and a second fastener comprising a second plurality of hooks on the first surface and positioned proximate to the second end.
ArraysThe absorbent articles of the present disclosure may be sold or displaced in arrays or on-line arrays. The arrays or on-line arrays may comprise different sizes of the absorbent articles or absorbent articles with different features. The arrays or on-line arrays may also comprise the discrete fasteners or discrete wetness guards.
Any configurations of the wetness guards22 and24 described herein may be used together, for example, a wetness guard that is discrete may be used with a wetness guard that folds over, or a wetness guard that is attached at only one side of theabsorbent article10 may be used with a permanent or discrete wetness guard. Other features of the absorbent articles may be used in combination with any of the wetness guard configurations described herein.
Crotch Compression ForceThe absorbent articles of the present disclosure may have a Crotch Compression Force in the range of about 0.4N to about 2.5N, about 0.4N to about 1.5N, about 0.5N to about 2.0N, about 0.6N to about 1.5N, about 0.7N to about 1N, about 0.8N to about 0.9N, about 0.75N to about 1N, or less than about 2.0N, less than about 1.8N, less than about 1.6N, less than about 1.5N, or less than about 1N, specifically reciting all 0.01N increments with the specified ranges and all ranges formed therein or thereby. All Crotch Compression Force measurements are made according to the Crotch Compression Force Measurement Test herein.
FIGS. 27-29 are schematic illustrations ofabsorbent articles10 with graphics and/orindicia134,136 (hereafter “graphics”), with their garment-facing surfaces facing the viewer. Thegraphics134 may be on a first side of the centrallateral axis12 and thegraphics136 may be on a second side of the centrallateral axis12 of theabsorbent article10. Thegraphics134 and/or136 may or may not cross the central longitudinal axis of theabsorbent article10. Thegraphics134 and/or136 may be a single graphic or multiple graphics that form a single image, multiple images, single patterns, or multiple patterns. Thegraphics134 may be a mirror image of the graphics136 (or may be the same or substantially the same), relative to the centrallateral axis12, to indicate reversibility of the absorbent article to a caregiver or wearer. In other instances, thegraphics134 may not be a mirror image of thegraphics136, relative to the centrallateral axis12. Referring toFIG. 29, thegraphics134 and/or136 may be at least partially comprised of brand names, characters, and/or logos. Thegraphics134 and/or136 may be printed on, positioned on, and/or applied to thebacksheet38 and/or the outercover nonwoven material58, for example. If thegraphics134 and136 are on thebacksheet38, the outercover nonwoven material58 may have an opacity such that thegraphics134 and136 are viewable therethrough. Thegraphics134 and136 may be on a garment-facing side of thebacksheet38 and/or the wearer-facing side of thebacksheet38. Thegraphics134 may also be printed on, or otherwise applied to, a landing zone in thefront waist region16. Likewise, thegraphics136 may be printed on, or otherwise applied to, a landing zone in theback waist region18. By providing two landing zones, the caregiver is able to recognize that theabsorbent article10 is reversible. The landing zones may be a separate material joined to the outercover nonwoven material58 or may be formed by portions of the outercover nonwoven material58.
By havinggraphics134 and136 that are mirror images of each other, relative to the centrallateral axis12, theabsorbent article10 may be reversible. Stated another way, a baby's (or wearer's) back waist region may be positioned adjacent tographics134 or136 depending on how theabsorbent article10 is donned on the baby. If theabsorbent article10 is meant to be reversible, theabsorbent material42 within theabsorbent core40, in some instances, may be uniform and homogeneous. Theabsorbent core40 may also be longitudinally centered in the absorbent article to aid in reversibility of the absorbent article. By providing graphics that mirror each other on opposite sides of the centrallateral axis12, a caregiver will quickly recognize that the absorbent article is reversible. Further, the graphics may indicate where fasteners (e.g.,110,112) may be attached (e.g., landing zone) on the garment-facing surface to provide a caregiver with a guide as to proper application of the fasteners and, thereby, a proper application of theabsorbent article10.
Referring toFIGS. 8 and 30-34, one ormore inserts140 may be provided for use with theabsorbent article10. The one ormore inserts140 may be packaged together with theabsorbent article10 or packaged and sold separately. One ormore inserts140 and one or moreabsorbent articles10 may be in a kit. The one ormore inserts140 may be positioned within theabsorbent article10 after theabsorbent article10 is donned on the wearer or before theabsorbent article10 is donned on the wearer. Theinserts140 essentially provide an additional absorbent containment element that may be used prior to soiling theabsorbent article10 or after soiling of theabsorbent article10. Theinserts140 may be advantageous in that the baby or wearer may not need to be fully changed and, thereby, moved or handled less, compared to if only theabsorbent article10 was used. Multiple inserts may be used at one time, so that once soiled the most wearer-facing insert may be removed. In some instances, theinserts140 may be fastening or joined to the wearer-facing surface of theabsorbent article10 or to a wearer-facing surface of another insert using any suitable joining techniques. In other instances, theinserts140 may merely be placed on the wearer-facing surface of theabsorbent article10 or the wearer-facing surface without some separate attachment or joining mechanism. In these instances, theinserts140 may remain in place by friction or merely by weight of the baby. In some instances, at least portion of the inserts may have low coefficients of friction to allow them to slide over a portion of a wearer-facing surface of theabsorbent article10, when being inserted into the absorbent article while it is on a wearer. The inserts are helpful as full absorbent article changes may be reduced, thereby leading to less stress on (i.e., less movement of) a baby or premature baby.
FIG. 30 is a plan view of theinsert140 positioned on a wearer-facing surface of anabsorbent article10 of the present disclosure.FIG. 31 is a plan view of the insert.FIG. 32 is a cross-sectional illustration of theinsert140 ofFIG. 31, taken about line32-32.FIG. 33 is a plan view of anotherinsert140′.FIG. 34 is a plan view of anotherinsert140″.
Theinserts140 may comprise atopsheet142, an optional acquisition material and/ordistribution material144, anabsorbent core146, abacksheet148, and optionally an outercover nonwoven material150. Thetopsheet142 may be formed of one or more nonwoven materials, one or more films, or a laminate formed of one or more nonwoven materials and one or more films. Thetopsheet142 may comprise a liquid permeable material or apertures152 defined in thetopsheet142 may make thetopsheet142 liquid permeable or more liquid permeable. Thetopsheet142 may also comprise three-dimensional features, embossments, bond patterns, lotions, and/or surfactants, for example. The acquisition material and/ordistribution material144 may be formed of nonwoven materials, foams, or other suitable materials. The acquisition material and/ordistribution material144 is only illustrated inFIG. 32, since it is an optional feature. Optionally, a layer of cross-linked cellulosic fibers may also be present intermediate thetopsheet142 and the acquisition material and/ordistribution material144. Theabsorbent core146 may comprise an absorbent material. The absorbent material may comprise airfelt and superabsorbent polymers, mostly or only airfelt, or mostly or only superabsorbent polymers. Theabsorbent core146 may have areas that are free of the absorbent material (e.g., channels that are free of the absorbent material) or may have areas where the absorbent material is densified (e.g., channels that are formed by densified areas in the absorbent material). Thebacksheet148 may be liquid impermeable, and may or may not be air permeable (or “breathable”). In some instances, thebacksheet148 may not be provided and bodily exudates that are not absorbed by theabsorbent core146 may pass through theinsert140 and into theabsorbent articles10. The outercover nonwoven material150 may or may not be provided and may be formed of a nonwoven material, for example.
Referring toFIG. 32A, in some instances, theinsert140 may have the cross section illustrated when taken aboutline32A-32A ofFIG. 31. In such an instance, thetopsheet142 may form a C-wrap around end regions of thebacksheet148 and be joined to thebacksheet148 usingadhesive bonds149, or other types of joining. In such an instance, a portion of thebacksheet148 may rest on thetopsheet36 of theabsorbent article10. Stated another way, a portion of thebacksheet148 may form a garment-facing surface of the insert. An optional acquisition material and/ordistribution material144 may be provided. The insert ofFIG. 32A may, in some instances, have an outer cover nonwoven material as well.
Referring toFIG. 33, aninsert140′ is illustrated. Thisexample insert140′ has agrasp tab154 on one end and a cut out156 on the other end. Thegrasp tab154 may be used by a caregiver to easily grasp and remove theinsert140′. Thegrasp tab154, in an example, may be formed only of a backsheet material, or other liquid impermeable material, so that bodily exudates cannot wick to thegrasp tab154. In other instances, thegrasp tab154 may be formed of a portion of thetopsheet142, a portion of thebacksheet148, and/or a portion of the outercover nonwoven material150. By providing thegrasp tab154 on one end and the cut out156 on the other end, a material savings may be achieved when the inserts are manufactured in strip of a plurality of theinserts140′. Any of the inserts described herein may be manufactured in a strip of a plurality of the inserts and may be packaged as a roll of inserts, for example. Lines ofweakness158 may be formed intermediate the various inserts. In such an instance, a roll of a plurality of inserts may be provided to a caregiver or nurse and the caregiver or nurse can then tear off any suitable number of inserts for use on a particular wearer. The inserts may also be packaged in stacks, for example, or in other forms.
Referring toFIG. 34, theinsert140″ is illustrated. Theexample insert140″ may have agrasp tab154 on both ends to allow for easier caregiver or nurse placement and removal of theinserts140″.
In some instances, the various inserts may comprise stiffening members or stiffened portions (e.g., foams, densified regions) to aid in application of the inserts into a donnedabsorbent article10.
In some instances, it may be desirable for the absorbent articles to be free of fragrances, perfumes, and/or lotions. In other instances, one or more components of the absorbent articles, such as the topsheet, for example, may be free of fragrances, perfumes, and/or lotions,
Referring toFIG. 35, theelastics52 may extend the full longitudinal direction, substantially the full longitudinal direction, or only part of the full longitudinal direction of theabsorbent article10. In certain instances though, theelastics52 may only be joined to thecuffs26 in a joinedarea222. Theelastics52 may not extend the full longitudinal direction of theabsorbent article10 after the absorbent article is separated from other absorbent articles at thefirst end edge28 and at thesecond end edge30. In this instance, theelastics52 may “snap back” toward the joinedarea222. Portions of theelastics52 outside of the joinedarea222 may be free of joinder to thecuffs26, thereby not applying elastic forces to areas of thecuffs26 outside of the joinedarea222. The joinedarea222 may be centrally located on theelastics52 in the longitudinal direction (i.e., a direction about the longitudinal axis20). Stated another way, the joinedarea222 may exhibit symmetry with respect to thelateral axis12. In other cases, the joinedarea222 may not exhibit symmetry with respect to thelateral axis12 or may not even cross thelateral axis12. In this instance, the joinedarea222 may be fully positioned on a first side of thelateral axis12 or may be fully positioned on a second side of thelateral axis12. More than one joinedarea222 may exist for asingle cuff26. In a single elastic52, one joined area may be on the first side of thelateral axis12 and a second joined area may be on a second side of thelateral axis12. The joinedareas222 may have a length extending in a direction generally parallel to thelongitudinal axis14 of about 0.25 inches to about 10 inches, about 0.5 inches to about 7 inches, about 1 inch to about 6 inches, about 1 inch to about 5 inches, or about 1 inch to about 4 inches, specifically reciting all 0.1 inch increments with the specified ranges and all ranges formed therein or thereby. The certain longitudinal length of the joinedareas222 in a particularabsorbent article10 may depend on the size of theabsorbent article10 and/or the intended use of theabsorbent article10. The joinedarea222 may comprise one or more adhesives and/or one or more mechanical, ultrasonic, and/or thermal bonds, for example, to join theelastics52 in the joinedarea222 to thecuffs26. The joinedareas222 are illustrated as a rectangular block for illustration purposes only, and other suitable shapes are within the scope of the present disclosure. Theelastics52 may be under a pre-strain when joined to thecuffs26 to activate the joinedareas222 when the pre-strain is released. In some instances, theelastics52 may only extend longitudinally through the joinedarea222 and may be pre-strained. Thecuffs26 may be formed of one or more materials or nonwoven materials. If only one material is used, that material may be folded over itself to enclose theelastics52. If two materials are used, the materials may sandwich the elastics therebetween. The joinedarea222 may be two or morediscrete bonds222′ withpre-strained elastics52P therebetween as illustrated inFIG. 37. Theelastics53, if provided, may have the same or different features as theelastics52 described in this paragraph. In other instances, only theelastics53 may have the features described in this paragraph with respect to theelastics52. By providingelastics52 and/or53 with one or more joinedareas222, the absorbent pad may form a U-like shape by bringing thefirst end edge28 towards thesecond end edge30. This may provide better bodily exudate containment. An example absorbent article having this U-like shape is illustrated inFIG. 36.
In other instances, the joinedareas222 may not be provided and the cuffs may comprise a first nonwoven substrate or a first substrate and a second nonwoven substrate or a second substrate. The first and second nonwoven substrates may be joined to each other at different longitudinal pre-strain forces. As such, when these pre-strain forces are released, the cuff may contract and form a structure like the top absorbent article ofFIG. 36. One pre-strain force in one of the first and second substrates may be negligible or may be zero.
Referring toFIG. 37, anabsorbent article10 may havecuffs26 with a certain elastic configuration. Theelastics52 and/or53 may or may not have the joinedareas222,222′ discussed above. Theelastics52 may each have afirst bond224 proximate to thefirst end edge28 and asecond bond226 positioned more distal from thefirst end edge28 than thefirst bond224. Theelastics52 may also each have athird bond228 proximate to thesecond end edge30 and afourth bond130 positioned more distal from thesecond end edge30 than thethird bond228. Theelastics52 may be cut (example cut lines “CL” illustrated in dash inFIG. 37) intermediate thesecond bond226 and joined area222 (or222′) or, if the joinedarea222 is not provided, intermediate thesecond bond226 and thefourth bond230. If the joinedarea222 is provided, theelastics52 may also be cut intermediate thefourth bond230 and the joinedarea222. Thebonds224 and226, owing to contraction of the elastic52 therebetween, may cause thefirst end edge28 to curl or fold over a portion of the wearer-facing surface proximate to thefirst end edge28. Thebonds228 and230, owing to the contraction of the elastic52 therebetween, may cause thesecond end edge30 to curl or fold over a portion of the wearer-facing surface proximate to thesecond end edge30. These curled or folded over portions may help contain bodily exudates on theabsorbent article10 so that they may be absorbed by theabsorbent core40 and so that clothing around theabsorbent article10 is not soiled.FIG. 38 is a perspective front view of a curled or folded over portion of an absorbent article in the front waist region.FIG. 39 is a perspective view of the curled or folded over portion of an absorbent article in the front waist region. The back waist region may also have the curling or folded over features in the example absorbent articles ofFIGS. 38 and 39. These features may be used with or without thevarious wetness guards22,24 disclosed herein. In other instances, these curled or folded over portions may be used to create the wetness guards22,24 when they are curled or folded over. When used as wetness guards, the curled or folded over portions may be tacked, bonded, and/or glued to the wearer-facing surface to hold them in place. Theelastics53 of thecuffs27, if provided, may have the similar or the same features as theelastics52 of thecuffs26 described in this paragraph. Thebonds224,226,228, and230 may comprise adhesive bonds, mechanical bonds, ultra-sonic bonds, and/or thermal bonds, for example. One or more tack downbonds221 may also be present on theabsorbent article10. The tack downbonds221 may be used to join thecuffs26 to the topsheet or to other portions of theabsorbent article10. Referring toFIG. 40, instead of providing the first, second, third, andfourth bonds224,226,228, and230, acontinuous bond232 may be provided in at least one end region of theelastics52. Thecontinuous bond232 may function like the first, second, third, andfourth bonds224,226,228, and230 described above and may result in curled or folded portions illustrated inFIGS. 38 and 39. Thecontinuous bonds232 may comprise adhesive bonds, mechanical bonds, ultra-sonic bonds, and/or mechanical bonds, for example. Continuous bonds may also be provided on theelastics53 of thecuffs27, if provided. The elastics may be pre-strained before the continuous bond is applied such that elastic contraction within the continuous bonds may cause the end portions to curl or fold over.
Referring toFIG. 41, portions of theabsorbent core40, theabsorbent material42 within theabsorbent core40, and/or other layers of the absorbent articles may comprise one ormore fold lines233 to allow easier folding of portions of theabsorbent articles10. The fold lines233 may be areas with reduced or noabsorbent material42 or embossed areas, for example. The fold lines may be at any suitable locations within theabsorbent core40 and/or theabsorbent article10. The fold lines may be helpful to a caregiver or nurse when situating theabsorbent pad10 at least partially around a baby, for example.
Methods for producing cuffs of the absorbent articles are also disclosed. The cuffs may be made online or by hand. In an online context, a first nonwoven web or a first web may be advanced (e.g., on a conveyor) in a machine direction. One or more elastics may be applied in a pre-strained condition to the first nonwoven web. The pre-strained elastic may have the same machine direction length as the first nonwoven web. The pre-strained elastic may be joined to the first nonwoven web in a plurality of joined areas222 (e.g., one or more joined areas per discrete cuff length). In some instances, the pre-strained elastic may only be joined to the first nonwoven web in the joinedareas222. The joining may use adhesives or bonds, as discussed herein. The remainder of the elastic outside of the joinedareas222 may be free of joinder to the first nonwoven web. The first nonwoven web may then be folded over itself to enclose the elastic. In other instances, a second nonwoven web or second web may be positioned over the first nonwoven web and may be joined to the first nonwoven web to enclose the elastic. The second nonwoven web may also be joined to the elastic in the joinedareas222. The formed web of cuffs may then be cut to suitable discrete lengths. When the web of cuffs is cut to suitable discrete lengths, the elastic in each cuff may “snap back” towards the joinedareas222, leaving the elastic only pre-strained in the joined area, with the remainder of the elastic being non-pre-strained and not attached to the first and/or second nonwoven discrete webs. The cuffs may then be attached to an absorbent article. Once the cuffs are attached to an absorbent article, the structure ofFIG. 36 may be created. In some instances, the first nonwoven web may first be joined to a moving web comprising a topsheet, a backsheet, and an absorbent core positioned at least partially therebetween, among other components (e.g., an acquisition layer positioned intermediate the topsheet and the absorbent core). In this instance, the cuffs and the moving web may be cut into discrete absorbent articles at the same time.
In addition to being joined to the first and/or second nonwoven webs in the joinedareas222, the elastics may also be joined to the first and/or second nonwoven webs at bonds (e.g.,bonds224,226,228, and230 or continuous bonds232). These features may apply in a single web cuff that is folded over itself or to a two web cuff. Also, the elastics may only be joined to the first and/or second nonwoven webs at the bonds and not in the joinedareas222. In any event, if the elastics are joined to the bonds (e.g.,224 and226), portions of the elastics intermediate the bonds will remain pre-strained after the elastics are cut intermediate bond pairs (e.g., “CL” ofFIG. 37) and after the cuffs are cut into suitable discrete lengths. This may cause the pre-strained elastic portions intermediate the bonds (e.g.,224 and226), to contract upon release of the pre-strain force and cause the curling or folding of longitudinal end portions as illustrated inFIGS. 38 and 39.
In some instances, discrete cuffs, like the pairs ofcuffs26 and27 may not be provided in an absorbent article. Instead, referring toFIGS. 42-45, a pair ofcuffs326 may be integrally formed in theabsorbent article10 by folding the first and second side edges32 and34 inwardly toward thelongitudinal axis14.FIG. 42 is a perspective view photograph of an absorbent article with folded over cuffs.FIG. 43 is a plan view of anabsorbent article10 with folded overcuffs326.FIG. 44 is an example cross-sectional view of theabsorbent article10 prior to thecuffs326 being folded toward thelongitudinal axis14.FIG. 45 is an example end view of theabsorbent article10 ofFIG. 43 before any tack down bonds are applied.
Referring toFIGS. 43-45, the structure of theabsorbent article10 is illustrated. Theabsorbent article10 comprises atopsheet36, anabsorbent core40, abacksheet38, and an outercover nonwoven material58. Theabsorbent core40 is disposed at least partially between thetopsheet36 and thebacksheet38.Elastics352 may also be positioned intermediate thetopsheet36 and thebacksheet38 or may be positioned intermediate thebacksheet38 and the outercover nonwoven material58. Portions of thetopsheet36, thebacksheet38, and the outercover nonwoven material58 may be folded towards thelongitudinal axis14 to create a structure like that illustrated inFIGS. 43 and 45. Theelastics352 may only be joined to thecuff326 in a joinedarea322, much like joinedarea222. The joinedarea322 may comprise an adhesive that joins theelastics352 to thetopsheet36 and/or backsheet38 (or to thebacksheet38 and/or the outer cover nonwoven material58). One or more tack down bonds321 (similar to tack downbonds221 described herein) may also be present on theabsorbent article10 proximate to thefirst end edge28 and thesecond end edge30. The tack downbonds321 may be used to hold the ends of thecuffs326 in the folded over configuration. In some instances, theelastics352 may not be provided and thecuffs326 may “stand” because of the tack downbonds321. Any suitable number of tack downbonds321 may be provided.
The tack downbonds321 in combination with the joinedarea322 of theelastics352 may cause thecuffs326 to “stand” more than without theelastics352 and the joinedarea322 as illustrated inFIG. 42. In some instances, theelastics352 may be joined to thetopsheet36 and/or backsheet38 (or to thebacksheet38 and/or the outer cover nonwoven material58) along their full length or along most of their length. Other features, such as the wetness guards22,24, for example, of theabsorbent articles10 described herein may also be used with the absorbent article ofFIGS. 42-45. One or more acquisition materials and/or distribution materials may also be provided at least partially intermediate thetopsheet36 and theabsorbent core40, similar toacquisition material50 anddistribution material51 described herein.
Examples/CombinationsA. An absorbent article comprising:
a central lateral axis;
a central longitudinal axis;
a first end edge;
a second end edge opposing the first end edge;
a first side edge;
a second side edge opposing the first side edge;
a first waist region on a first side of the central lateral axis;
a second waist region on a second side of the central lateral axis;
a crotch region extending intermediate the first waist region and the second waist region and crossing the central lateral axis;
a liquid permeable, apertured topsheet, wherein the topsheet is hydrophobic;
a liquid impermeable backsheet;
an acquisition material;
an absorbent core positioned at least partially intermediate the acquisition material and the liquid impermeable backsheet, wherein the absorbent core comprises an absorbent material, wherein the absorbent material has a first width, in a direction parallel to the central lateral axis, in the first waist region, wherein the absorbent material has a second width, in the direction parallel to the lateral axis, in the second waist region, wherein the absorbent material has a third width, in the direction parallel to the lateral axis, in the crotch region, and wherein the first width and the second width are greater than the third width;
a pair of leg cuffs positioned proximal to the first and second side edges;
a first wetness guard in the first waist region, wherein the first wetness guard comprises:
- a first liquid impermeable material in a facing relationship with the topsheet; and
- a second liquid permeable material forming a first portion of a wearer-facing surface of the absorbent article;
a second wetness guard in the second waist region, wherein the second wetness guard comprises:
- a third liquid impermeable material in a facing relationship with the topsheet; and
- a fourth liquid permeable material forming a second portion of the wearer-facing surface of the absorbent article; and
a removable fastening member comprising:
- a first surface;
- a second surface opposite to the first surface;
- a first end;
- a second end opposite to the first end;
- a first fastener comprising a first plurality of hooks on the first surface and positioned proximate to the first end; and
- a second fastener comprising a second plurality of hooks on the first surface and positioned proximate to the second end.
B. The absorbent article of Paragraph A, wherein the first width of the absorbent material and the second width of the absorbent material are substantially the same.
C. The absorbent article of Paragraph A or B, comprising an outer cover material joined to a non-absorbent core facing side of the backsheet, wherein the outer cover material or the backsheet comprises a first graphic in the first waist region, wherein the outer cover material or the backsheet comprises a second graphic in the second waist region, and wherein the first and second graphics are the same, or substantially the same, to indicate reversibility of the absorbent article to a caregiver.
D. The absorbent article of Paragraph A or B, comprising an outer cover material joined to a non-absorbent core facing side of the backsheet, wherein the outer cover material or the backsheet comprises a first graphic in the first waist region, wherein the outer cover material comprises a second graphic in the second waist region, wherein the first and second graphics are mirror images of each other, relative to the central lateral axis, to indicate reversibility of the absorbent article to a caregiver, wherein the first and second pluralities of hooks are configured to engage portions of the outer cover material, and wherein the absorbent article is free of a discrete landing zone for the first and second pluralities of hooks.
E. The absorbent article of any one of Paragraphs A-D, comprising a second removable fastening member comprising: - a first surface;
- a second surface opposite to the first surface;
- a first end;
- a second end opposite to the first end;
- a first fastener comprising a first plurality of hooks on the first surface and positioned proximate to the first end; and
- a second fastener comprising a second plurality of hooks on the first surface and positioned proximate to the second end.
F. The absorbent article of any one of Paragraphs A-E, wherein the absorbent article has a crotch width of less than 45 mm, according to the Folded Crotch Width Test herein.
G. The absorbent article of any one of Paragraphs A-F, wherein, when the absorbent article is laid flat, elastic contraction pulled out, the absorbent article has a length, in a direction parallel to a central longitudinal axis, of less than 300 mm and a width, in a direction parallel to a central lateral axis, of less than 130 mm.
H. The absorbent article of any one of Paragraphs A-G, wherein the absorbent article is free of a discrete landing zone for the first and second pluralities of hooks.
I. The absorbent article of any one of Paragraphs A-H, wherein the first wetness guard is a discrete component that is joined to a first portion of the topsheet and/or first portions of the leg cuffs, and wherein the second wetness guard is a discrete component that is joined to a second portion of the topsheet and/or second portions of the leg cuffs.
J. The absorbent article of any one of Paragraphs A-I, wherein a first portion of the first wetness guard is joined to the leg cuffs and/or the topsheet proximate to the first end edge of the absorbent article, wherein a second portion of the first wetness guard is joined to the leg cuffs and/or the topsheet proximate to the first side edge of the absorbent article, and wherein a third portion of the first wetness guard is joined to the leg cuffs and/or the topsheet proximate to the second side edge of the absorbent article.
K. The absorbent article of Paragraph J, wherein the first wetness guard has a first end positioned proximate to the first end edge of the absorbent article, wherein the first wetness guard has a second end positioned intermediate the first end edge of the absorbent article and the central lateral axis, and wherein the second end of the first wetness guard has at least a portion that is free of attachment with the topsheet.
L. The absorbent article of any one of Paragraphs A-K, wherein a first portion of the second wetness guard is joined to the leg cuffs and/or the topsheet proximate to the first end edge of the absorbent article, wherein a second portion of the second wetness guard is joined to the leg cuffs and/or the topsheet proximate to the first side edge of the absorbent article, and wherein a third portion of the second wetness guard is joined to the leg cuffs and/or the topsheet proximate to the second side edge of the absorbent article.
M. The absorbent article of Paragraph L, wherein the second wetness guard has a first end positioned proximate to the first end edge of the absorbent article, wherein the second wetness guard has a second end positioned intermediate the second end edge of the absorbent article and the central lateral axis, and wherein the second end of the second wetness guard has at least a portion that is free of attachment with the topsheet.
N. The absorbent article of any one of Paragraphs A-M, wherein the removable fastening member comprises a first nonwoven material, a second nonwoven material, and an elastic material positioned therebetween.
O. The absorbent article of Paragraph N, wherein the elastic material is apertured.
P. The absorbent article of any one of Paragraphs A-O, wherein the absorbent article has a Crotch Compression Force in the range of about 0.4N to about 1.5N, according to the Crotch Compression Force Measurement Test herein.
Q. The absorbent article of any one of Paragraphs A-P, wherein each of the leg cuffs comprises three longitudinally extending fold lines.
R. The absorbent article of any one of Paragraphs A-Q, wherein the first wetness guard overlaps a first portion of the absorbent core, and wherein the second wetness guard overlaps a second, different portion of the absorbent core.
S. The absorbent article of any one of Paragraphs A-R, wherein the absorbent core comprises a core bag enclosing the absorbent material, and wherein the core bag is generally rectangular.
T. A package comprising a plurality of the absorbent articles of any one of Paragraphs A-S.
Test MethodsFor all test methods, condition the samples at 23° C.±2 C.° and 50%±2% relative humidity for 2 hours prior to testing.
Crotch Compression Force Measurement TestThe Crotch Compression Force Measurement Test is measured using a horizontally oriented constant rate of extension tensile tester (FIGS. 46 and 47) with a computer interface (a suitable instrument is a horizontally orientedMTS Criterion42 interfaced with acomputer running TestWorks 4 software, as available from MTS Systems Corp., Eden Prairie, Minn.) using an S-beam type load cell, with moment or off-axis side load cancelling capabilities, for which the forces measured are within 10% and 90% of the limit of the cell. Two vertically oriented cylindrical posts (1001 and1002), each with a diameter of 7.0 mm, are utilized to compress the sample. One post is affixed to the moveable crosshead (1003), and the other is affixed to a moveable sled (1004) as part of the stationary test fixture. The absorbent article sample is suspended between the vertical compression posts. The posts are then simultaneously brought together, compressing the crotch region of the sample, simulating the compression at the crotch region of an absorbent article from the legs of the wearer during normal use. During the experiment the instrument collects force and distance data. All testing is performed in a conditioned room maintained at about 23° C.±2 C and about 50%±2% relative humidity.
Accurately align the vertical compression posts so that they are vertically parallel to each other and are horizontally aligned along the central axis of the instrument's moveable fixture travel path. One post is affixed to the moveable crosshead, and the other is affixed to a moveable sled on the stationary fixture. By way of a pulley and cable system (1005), as the crosshead travels toward the stationary fixture it causes the sled affixed to the stationary fixture to simultaneously travel at the same rate toward the crosshead. This allows the two compression posts to travel in a linear path toward each other during the experiment.
Remove the individual samples from any outer packaging, and allow them to precondition at about 23° C.±2 C.° and about 50%±2% relative humidity for 2 hours prior to testing. Open the sample and secure the middle 50 mm of the front and back waist edges to either side of a 25.4 mm wide support bar, so that the crotch region of the sample is suspended in a “U” shape between the compression posts. The sample is centered between the compression posts and aligned so that the crotch region will be laterally compressed during the experiment. Separate the compression posts so that the interior gap between them is wide enough to not initially touch either side of the sample prior to testing. The suspended sample is lowered into position for testing, so that the bottom of the crotch region is 15 mm below the top of the compression posts.
Program the tensile tester to perform a compression test, collecting force and extension data at an acquisition rate of 50 Hz as the crosshead travels at a rate of 120 mm/min, which equates to the compression posts moving toward each other at a rate of 240 mm/min, until the gap between the compression posts is equal to 20 mm. Zero the load cell; start the tensile tester and the data acquisition. Program the software to record the force when the interior gap between the compression posts is equal to 20 mm to the nearest 0.001 N. Repeat this procedure for 10 substantially similar samples. Average together the 10 individual Crotch Compression Force measurements and report the value nearest 0.001 N.
Opacity TestSeparate the outer cover nonwoven material and backsheet from the absorbent article samples using cryogenic spray.
Opacity by contrast ratio measurements are made using a 0°/45° spectrophotometer suitable for making standard CIE L*a*b* color measurements (e.g., Hunterlab Labscan XE spectrophotometer, Hunter Associates Laboratory Inc., Reston Va. or equivalent). The diameter of the instrument's measurement port should be chosen such that only the region of interest is included within the measurement port. Analyses are performed in a room controlled at about 23° C.±2 C.° and 50%±2% relative humidity.
Calibrate the instrument per the vender instructions using the standard black and white tiles provided by the vendor. Set the spectrophotometer to use the CIE XYZ color space, with a D65 standard illumination and 10° observer. Using cryogenic spray and scissors carefully excise the specimen from the article for testing. The region of interest is selected from the crotch region near the longitudinal centerline of the chassis excluding significant wrinkles, creases, or wetness indicators. Place the specimen flat against the instrument with the outward facing surface toward the spectrophotometer's measurement port and the region of interest within the port. Ensure that no tears, holes or apertures are within the measurement port. Place the white standard tile onto the opposing surface of the specimen such that it completely covers the measurement port. Take a reading for XYZ and record to 0.01 units. Without moving the specimen, remove the white plate and replace it with the black standard plate. Take a second reading for XYZ and record to 0.01 units. Repeat this procedure at a corresponding site for a total of ten (10) replicate specimens.
Opacity is calculated by dividing the Y value measured using the black tile as backing, divided by the Y value measured using the white tile as backing, then multiplying the ratio by 100. Record the opacity value to the nearest 0.01%. Calculate opacity for the 10 replicates and report the average opacity to the nearest 0.01%.
Folded Crotch Width TestThe Folded Crotch Width (W) (seeFIG. 1) is measured by folding an absorbent article sample so that the front and back waist edges are aligned, and so that corresponding lateral edges are aligned with each other. Using a calibrated ruler certified by NIST, measure and record the lateral width of the outer surface of the sample along the fold to the nearest 0.1 mm. Repeat this procedure for 10 substantially similar absorbent articles samples. Average together the 10 individual Folded Crotch Width (W) measurements and report the value nearest 0.1 mm.
Folded Crotch Angle TestThe Folded Crotch Angle (A) (seeFIG. 1) is measured by folding an absorbent article sample so that the front and back waist edges are aligned, and so that corresponding lateral edges are aligned with each other. Using a calibrated protractor certified by NIST measure, and record the angles (A) of the two angled portions63 (seeFIG. 1) of the sample relative to the lateral axis of the folded sample to the nearest 0.1 degrees. Repeat this procedure for 10 substantially similar absorbent article samples. Average together the 20 individual Folded Crotch Angle (A) measurements and report the value nearest 0.1 degrees.
The dimensions and values disclosed herein are not to be understood as being strictly limited to the exact numerical values recited. Instead, unless otherwise specified, 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.”
Every document cited herein, including any cross referenced or related patent or application, is hereby incorporated herein by reference in its entirety unless expressly excluded or otherwise limited. The citation of any document is not an admission that it is prior art with respect to any embodiment disclosed or claimed herein or that it alone, or in any combination with any other reference or references, teaches, suggests or discloses any such embodiment. Further, 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 shall govern.
While particular embodiments of the present disclosure have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications may be made without departing from the spirit and scope of the present disclosure. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this disclosure.