CN103655060A - Two-piece type absorbing product comprising inserting piece with two tail ends of different widths - Google Patents

Abstract

The invention relates to an inserting piece of a two-piece type absorbing product. The inserting piece comprises a liquid impermeability outer layer, a liquid permeability inner layer, an absorbing core located between the outer layer and the inner layer, two tail ends and two straight side edges, and the two ends of the inserting piece are of different widths, so that the side edges form a 2alpha angle. The side edges forming the angle enable the product to be adjusted to be adaptive to the individual anatomy structures of users.

Description

The two-piece type absorbent article that comprises the insertion sheet with two ends of different in width

Technical field

The present invention relates to health product, relate in particular to the two-piece type absorbent article that comprises the insertion sheet with two ends of different in width.

Background technology

The reusable diaper of being made by cloth is used for many years.But reusable cloth diaper has the effort processed, need to effectively wash and sterilize and pollute diaper the shortcoming such as to reuse.

The disposable urine napkin of introducing decades recently solves these problems to a certain extent.Conventionally, after use, can former state abandon the disposable urine napkin of pollution, and not need washing or sterilization.In addition, multiple existing disposable urine napkin is considered to leave skin and/or be better than cloth diaper aspect skin care compositions and methods protection skin in transmission and storage of urine, can help thus to avoid for example diaper rash of dermatosis.

Due to economic cause, the existing material that is mostly the most of origin of disposable urine napkin comes from oil is made, for example polypropylene and/or polyethylene.These materials occur with the form of non-woven fabrics, layer or film conventionally.

The concern of having risen relevant environment in more nearest years.The production of diaper and use no exceptionly, especially considers the increase of Number of infants.A kind of viewpoint is to use disposable urine napkin harmful to environment, because the material source that is commonly used to manufacture diaper is in non-renewable resources, and in its manufacture process, needs a large amount of energy.In addition because the common not reproducible use of disposable urine napkin or recovery, some people think they use can to treatment facility as refuse landfill forms burden dissatisfactory.

Two-piece type absorbent article has been known in the art for many years.For example, WO2010/083290, WO2010/083287, WO2010/083260 and WO2010/083293 disclose the two-piece type absorbent article that comprises outer covering piece and absorb insert, wherein insert can have the effluent that prevents wearer make dirty containing of described outer covering piece and absorption piece, make described outer covering piece flow out and can reuse after described plug-in unit is replaced at effluent, and described plug-in unit and/or described outer covering piece can have the property contained of raising, absorbability, the parts of material economy and/or stickiness, it makes them is asymmetric with respect to its corresponding axis of pitch, and can have and instruct user according to be orientated to install the parts of plug-in unit and/or outer covering piece with respect to wearer's correct front and back.

Consider above-described problem, advantageously can obtain wearable absorbent articles, it provides the advantage that can bear for care-giver, overcomes its each defect simultaneously.The structure that can simplify production process and/or reduce old is provided also advantageously.

Summary of the invention

The present invention relates to theinsertion sheet 30 of two-piece type absorbent article 1, comprise liquid impermeability skin 31, fluid permeability internal layer 32, outer 31 and internal layer 32 between absorbent cores 33, twoends 37,37 ' and two straight sided 38,38 ', twoends 37 of wherein said insertion sheet, 37 ' has different width, makesside 38,38 ' the 2 α angles that form.

In one embodiment, α angle is 5 ° to 12 °, preferably 6 ° to 10 °, and most preferably 7 ° to 8 °.

In one embodiment,insert sheet 30 and also comprise the absorption and distribution layer 34 between internal layer 32 and absorbent cores 33.Preferably, absorption and distribution layer 34 has the color that is different from insertion sheet internal layer 32, usings as the preferably indication of wetting zones.Or, in one embodiment, insert sheet internal layer 32 and there is labelling, to indicate preferred wetting zones.

In one embodiment,insert sheet 30 and also comprise thefixed system 36 withelement 361, to be connected to releasedly thecounter element 261 in themain leaf 20 of two-piece type absorbent article 1.

In one embodiment, insert twoends 37 of sheet, the length between 37 ' is at least about 30cm, preferably at least about 35cm, most preferably at least about 37cm.

In one embodiment, the coefficient of friction inserting between the outer field outer surface of sheet and main leaf internal layer inner surface is at least 1.0, more preferably at least 1.5, more preferably at least 1.8, most preferably at least 2.0.

The invention still further relates to two-piece type absorbent article 1, comprise any above-mentionedinsertion sheet 30, and comprise themain leaf 20 of liquid impermeability outer 21 and fluid permeabilityinternal layer 22.

In one embodiment,main leaf 20 also comprises any one or more following elements: outer 21 andinternal layer 22 betweenabsorbent cores 23, absorption anddistribution layer 24 betweeninternal layer 22 andabsorbent cores 23, near thegusset 27 of main leaf side with for two-piece type absorbent article 1 being fixed on to thefixed system 25 on user correct position.

In one embodiment,main leaf 20 also comprises thefixed system 26 withelement 261, to be connected to releasedly the correspondingfixed system element 361 inserting in sheet, to insertsheet 30 and also comprise thefixed system 36 withelement 361, to be connected to releasedly thecounter element 261 inmain leaf 20.

Accompanying drawing explanation

Fig. 1 is the keep flat top view that inserts sheet separated with main leaf, and inner surface is towards beholder.

Fig. 2 is the cutaway view that inserts sheet shown in Fig. 1.

Fig. 3 is the top view of the main leaf for engaging with insertion sheet, and wherein inner surface is in the face of beholder.

Fig. 4 is the cutaway view of main leaf shown in Fig. 3.

Fig. 5 inserts the schematic diagram that sheet engages with main leaf.

The specific embodiment

Definition

For illustrative purposes, following term has described implication:

" insertion sheet " used herein refers to the element of absorbent article, and it is applicable to hold and/or absorbs urine, feces, menstruation or any its combination, be applicable to can be used as modular unit be mounted to absorbent article main leaf and can be separated with it.

" main leaf " used herein refers to the element of absorbent article, and it is applicable to be through the lower body of user, and is applicable to support to insert the health of sheet and maintenance insertion sheet next-door neighbour user.Main leaf is also applicable to holding and/or absorbing urine, feces, menstruation or any its combination.Or main leaf can be configured to does not have any absorption function.

" fixed system " used herein refers to realize and the first structure fixed movably, connected or remains to the second structural system.Described system can have single retaining element, for example, first, be structurally applicable to be bonded in one or more surperficial bonding sheets in the second structure, or in the first structure, be applicable to be buckled in one or more surperficial hooks or hook sheet in the second structure.In the mode of example, in the first structure, be applicable to all or part of any structure of catching and keeping the second structure, such as pocket, band, hook, clasp etc., is all " fixed system " used herein.Described system also can comprise two or more retaining elements, such as each element (as VELCRO) of hook-loop fixed system, have apply the jointing material on it each surface, convex-concave button retaining element, button and buttonhole, groove or ring, other can secure fit part etc.Other embodiment of retaining element comprise slide fastener elements, " zip " co-operating member, ring, post, bag, rope or bar, micro-fixture, large fixture and as disclosed retaining element in WO1998/029081, WO2002/047597 etc.

" user " used herein refers to the people of wearable absorbent article as herein described.

Fig. 1 has shown that the present invention inserts the top view of sheet, and its part as two-piece type absorbent article is used.Insertion sheet keeps flat, and inner surface is towards beholder.Fig. 2 is the cutaway view of this insertion sheet.As shown in the figure, insertion sheet of the present invention comprise liquid impermeability skin 31, fluid permeability internal layer 32, outer 31 and internal layer 32 between absorbent cores 33, two 37,37 ' and two straight sided 38,38 ' ofend.Insertion sheet 30 of the present invention has longitudinal X-axis that decile inserts the width of sheet, and is basically perpendicular to the horizontal Y-axis of X-axis, twoends 37 of its decile, and between 37 ', the length of sheet X-axis is inserted on edge.Twoends 37,37 ' of described insertion sheet have different width, makeside 38, and 38 ' forms the angle of 2 α.In preferred embodiments,side 38,38 ' with the longitudinal α angle of each self-forming of X-axis.

" longitudinally " or its variant refer to respect to user, along extend to substantially the direction of rear (vice versa) from user the place ahead, or contrary.For the element of absorbent article, " longitudinally " or its variant refer to when this element is correctly worn on user, along extend to substantially the component orientation of rear (vice versa) from user the place ahead.

" laterally " or its variant refer to respect to user, and the direction that extends to rear (vice versa) with the place ahead along from wearer is vertical or horizontal direction substantially.For the element of absorbent article, " laterally " or its variant refer to when this element is correctly worn on user, and the direction that extends to rear (vice versa) with the place ahead along from wearer is vertical or horizontal direction substantially.

Liquid impermeability is outer

Liquid impermeability skin is liquid, for example, urinate, can not be from the lamella passing perpendicular to the direction of this layer plane at liquid contact point under normal service condition.Liquid impermeability outer 20 and 30 can be the monolayer of liquid impermeability material, or can be wherein at least one deck and do not see through the laminated multi-layer structure of liquid.As known in the state of the art, liquid impermeability skin can comprise the layer of fluid permeability material and the layer of liquid impermeability material, and they are by suitable the combining of layer binding agent.Binding agent can continuous coating, or can be used as the discontinuous coatings such as globule, spraying, parallel eddy current.Suitable binding agent is known in the state of the art and commercially available obtainable, for example, see and obtain from German Henkel AG & Co.Huo U.S. 3M Corporate.Fluid permeability material can be any suitable material that conventional cloth specimen quality is provided.The example of a this material be 20gsm (gram/m) spunbond polypropylene non-woven fabric.Fluid permeability material also can be the material of making fluid permeability internal layer.And, in multilayer liquid impermeability skin outer layer be not necessary for liquid can permeability, but wish that it provides the quality of relative cloth specimen for user.

From preventing sultry angle, liquid impermeability is outer preferably to be formed by the sheet layer material with dampness permeability.

Fluid permeability internal layer

Fluid permeability internal layer is the permeable non-woven fabrics of liquid, and it is shaped to and covers the surface of inserting sheet and contact skin.Natural fiber or synthetic fibers can be used for forming the non-woven fabrics of internal layer.Natural fiber comprises such as cotton, cellulose (wood pulp), Pilus Caprae seu Ovis or silk etc.Synthetic fibers can comprise for example polypropylene (PP), polyethylene (PE), nylon, polyester (PET) or acrylic aldehyde.Synthetic fibers also can comprise PE/PP hybrid nonwoven cloth, PE/PET hybrid nonwoven cloth or see through the biconstitutent fibre (composite fibre mixed fiber) that suitably mixes above-mentioned material acquisition.

Absorbent cores

Absorbent cores is the part that can absorb and keep liquid.Described material for the material that forms absorbent cores, has no particular limits, as long as can absorb and keep liquid.As known in the state of the art, absorbent cores is for example by the compositions of mixtures of fibrous material and super absorbent polymer.In this example, super absorbent polymer remains in fibrous material.In a preferred embodiment, the mixture of all fibres material and super absorbent polymer can remain in wrapping paper.In another preferred embodiment, the mixture of fibrous material and super absorbent polymer is divided into two parts, and it remains in wrapping paper separately, and cross section is perpendicular to the plane of outer and internal layer.

Super absorbent polymer (SAP) is the polymer that can absorb and keep with respect to himself quality huge amount liquid.SAP absorbs an ion concentration that the factor is aqueous solution of the ability of water.In deionization and distilled water, SAP can absorb the water of 500 times of its weight (30-60 doubly himself volume), but in 0.9% saline solution, absorbability may drop to 50 times of weight.Total absorptivity and swelliong power are by for forming type and the extent control of the crosslinked of SAP.The SAP of low cross-linking has higher absorbability conventionally, inflatable to largely, and high-crosslinking-degree polymer shows lower absorbability and swelliong power.

Flat shape for absorbent cores has no particular limits.For example, the shape of absorbent cores can be square, rectangle, rhombus, circle, or fillet rectangle or each limit rectangle that is slight outwardly curve.And, can use the combination of two or more these shapes.

Absorbent cores is placed on to be inserted between sheet skin and internal layer, passes the centre of the direction of outer and interior layer plane.Absorbent cores useful binders is fixed to skin or internal layer.Binding agent cocoa continuous coating, or can be used as the discontinuous coatings such as globule, spraying, parallel eddy current.Suitable binding agent is known in the state of the art and commercially available obtainable, for example, see and obtain from German Henkel AG & Co.Huo U.S. 3M Corporate.Absorbent cores can be fixed by each fixing point, and the shape that makes absorbent cores of the pattern of fixing point is indeformable when skin stretches.

Conventionally, insert the thickness of sheet for substantially uniform, the absorbability of the directions X from narrower end to wider end is increased continuously, as described in Figure 1, from left to right.

Absorption and distribution layer

Absorption and distribution layer is as known in the art, is the subgrade that is designed to improve liquid management in health product.Absorption and distribution layer acceleration liquid obtains and distributes to absorbed layer, to increase comfort level and the degree of freedom of consumer.It typically is fluffy softness, there is three dimensional structure and promote before absorbing large quantity of fluid with the absorbent cores being positioned at absorption and distribution layer opposite side body fluid to be dispensed to most of absorption and distribution layer surface near internal layer (it is again near the skin of user).Otherwise liquid can flood absorbing material at relatively narrow absorption point, rather than at the vast regional diffusion on absorbent cores surface better to absorb.Absorption and distribution layer can be made by various method, for example chemical adhesion and heat bonding, and this is all well known in the prior art.

Fixed system

Used various fixed systems the belt of absorbent article is fixed on to the waist of user.Fixture is usually included in the side slat that is connected to absorbent article ear in rear waistband.When absorbent article is placed on user health, rear waistband and anterior belt are overlapping, and described side slat is fixed in anterior waistband portion, and absorbent article is remained on trunk.After absorbent article is contaminated, it is opened waist and is removed by untiing side slat.

In the present invention, fixed system also can be used for insertion sheet to be connected on main leaf.Specifically, insert sheet and can have the retaining element being positioned on insertion sheet skin, it is connected to the corresponding retaining element being positioned on main leaf internal layer releasedly.The position of inserting the retaining element of sheet and main leaf can be designed to make when inserting sheet and main leaf and be connected to each other, and insertion sheet skin is smooth and smooth substantially.

Or, insert sheet and can not there is the retaining element being located thereon.In one embodiment, insert sheet and be placed on simply on main leaf, insert sheet skin and contact with main leaf internal layer.In this case, inserting sheet is remained on main leaf by the frictional force of inserting between sheet skin and main leaf internal layer.Therefore, insert the outer outer surface of sheet and preferably and between main leaf internal layer inner surface there is great friction coefficient, preferably at least 1.0, more preferably at least 1.5, more preferably at least 1.8, most preferably at least 2.0.

Comprise binding agent fixed system for fixed system of the present invention, U.S.Pat.Nos.3 for example, 180,355,3,630,201,4,047,530,4,049,001 and 4,050, described in 453, and mechanical fixation system, for example EP 0,276, the shackle fixed system described in 970.

Axle, end and side

Insert sheet and there is longitudinal X-axis that decile inserts sheet width, and be basically perpendicular to the Y-axis of X-axis, along the length of inserting sheet X-axis, as shown in Figure 1 between two ends of its decile (37,37 ').

Insert sheet and have twoends 37 and 37 ', it is presented at the above and below of Fig. 1 separately.These twoends 37 and 37 ' can be the straight line shown in Fig. 1, or they can be to the outside protrusion of insertion sheet or to inserting the recessed curve in sheet center, to be applicable to the shape of user health or the shape of main leaf.These two ends also can have different width along horizontal Y-axis.For example,end 37 can have the width that is wider than end 37 '.

Insert sheet and have twosides 38 and 38 ', it is presented at the left of Fig. 1 and right-hand separately.In the present invention, these twosides 38 and 38 ' are the straight line shown in Fig. 1.In a preferred embodiment, these twosides 38 and 38 ' are symmetrical with respect to X-axis.

Due to twoends 37 and 37 ' transversely Y-axis there is different width,side 38,38 ' forms the angle of 2 α.In a preferred embodiment, eachside 38,38 ' and the longitudinally angle of X-axis formation α.α angle can be 5 ° to 12 °, and preferably 6 ° to 10 °, most preferably 7 ° to 8 °.

In a preferred embodiment, the absorption and distribution layer that the present invention inserts sheet has the color that is different from insertion sheet internal layer, for example blue or green, forms thus the piece as preferably wetting zones is indicated.Or, in a further preferred embodiment, to insert sheet internal layer and there is labelling, the region that for example color is different from other region is as blue or green, or embossing, usings as the preferably indication of wetting zones.

Insert sheet and there is the length at least about 30cm between two ends (37,37 ').Preferably, this length is at least about 35cm, most preferably at least about 37cm.

Insert the use of sheet

Insertion flake products of the present invention is applicable to " dual incontinence ", i.e. urine and feces.Insertion sheet of the present invention is also applicable to absorbing blood.

Known some people has wider gap between its both legs, and some people's is narrower.Therefore, angled side of the present invention makes to adjust product, to adapt to the anatomical structure of user individuality.

In yet another aspect, male's thaw melting point is more forward than women conventionally.Therefore, insertion sheet of the present invention can be to having different occupation modes between masculinity and femininity.For example, for women, the narrower end that inserts sheet can be inserted by women's rear, and slide into forward correct position.For male, adopt in another way, the narrower end that is about to insert sheet is inserted by the place ahead of male.

Two-piece type absorbent article

In yet another aspect, the invention still further relates to two-piece type absorbent article 1, comprise that any above-mentioned the present invention insertssheet 30, and the main leaf 20(that comprises liquid impermeability outer 21 and fluid permeabilityinternal layer 22 is as shown in Figure 3), Fig. 4 illustrates the cutaway view of thismain leaf 20.

Liquid impermeability outer 21 and fluid permeabilityinternal layer 22 have respectively identical definition with the liquid impermeability outer 31 and the fluid permeability internal layer 32 that insert sheet.

Liquid impermeability outer 21 and fluid permeabilityinternal layer 22 respectively can be identical with fluid permeability internal layer 32 with the liquid impermeability skin 31 that inserts sheet, or they can be different.All embodiments all comprise in the present invention.

In one embodiment,main leaf 20 also comprises any or multiple following element: outer 21 andinternal layer 22 betweenabsorbent cores 23, absorption anddistribution layer 24 betweeninternal layer 22 andabsorbent cores 23, near thegusset 27 of main leaf side with two-piece type absorbent article 1 is fixed to the fixedsystem 25 on user correct position.

Fig. 5 shows the schematic diagram thatinsertion sheet 30 of the present invention engages withmain leaf 20.

Absorbent cores, absorption and distribution layer and fixed system have identical definition with the absorbent cores, absorption and distribution layer and the fixed system that insert sheet respectively, and can be identical or different with them.

Gusset is for preventing the film of the urine side leakage that user is discharged, and is configured to by rising as three-dimensional anti-pierced wall.Conventionally gusset is on each side of contact skin internal layer.

The patent of all patents, patent application and the mandate thereof of mentioning in the present patent application, the disclosed foreign patent of any correspondence are open and publication is incorporated herein by reference.But, hereby show that this is not to recognize that these file instructions of any combination by reference or discloses the present invention.Also hereby show, this is not to recognize that any commercially available material described herein or product instruction or discloses the present invention.

Although described and shown specific embodiment of the invention scheme, having it will be apparent for a person skilled in the art that can make various changes and modifications and without departing from the spirit and scope of the present invention.Therefore, claim is intended to cover all this change and the modification in the scope of the invention.

Claims (11)

1. the insertion sheet (30) of a two-piece type absorbent article (1), comprise liquid impermeability outer (31), fluid permeability internal layer (32), be positioned at the absorbent cores (33) between skin (31) and internal layer (32), two ends (37,37 ') and two straight sides (38,38 ')

Two ends (37,37 ') of described insertion sheet have different width, make side (38,38 ') form the angle of 2 α.

2. the insertion sheet of claim 1, wherein α is 5 ° to 12 °, preferably 6 ° to 10 °, most preferably 7 ° to 8 °.

3. the insertion sheet of claim 1, wherein inserts sheet (30) and also comprises the absorption and distribution layer (34) being positioned between internal layer (32) and absorbent cores (33).

4. the insertion sheet of claim 3, the color of wherein said absorption and distribution layer (34) is different from the color of inserting sheet internal layer (32), the indication of usining as preferred humidification zones.

5. the insertion sheet of claim 1, the internal layer (32) that wherein inserts sheet has labelling to indicate preferred humidification zones.

6. the insertion sheet of claim 1, wherein insert sheet (30) and also comprise the fixed system (36) with element (361), to be connected to releasedly the counter element (261) in the main leaf (20) of two-piece type absorbent article (1).

7. the insertion sheet of claim 1, the length of wherein inserting between two ends of sheet (37,37 ') is at least about 30cm, preferably at least about 35cm, most preferably at least about 37cm.

8. the insertion sheet of claim 1, the coefficient of friction wherein inserting between the outer outer surface of sheet and main leaf internal layer inner surface is at least 1.0, more preferably at least 1.5, more preferably at least 1.8, most preferably at least 2.0.

9. a two-piece type absorbent article (1), comprises the insertion sheet (30) of any one in claim 1-8, and

Main leaf (20), it comprises liquid impermeability outer (21) and fluid permeability internal layer (22).

10. the absorbent article of claim 9, wherein main leaf (20) also comprises one or more in following element: be positioned at absorbent cores (23) between skin (21) and internal layer (22), be positioned at absorption and distribution layer (24) between internal layer (22) and absorbent cores (23), near the gusset (27) of main leaf side with two-piece type absorbent article (1) is fixed on to the fixed system (25) of user correct position.

The absorbent article of 11. claim 9, wherein main leaf (20) also comprises the fixed system (26) with element (261), to be connected to releasedly, inserts fixed system element (361) corresponding in sheet; Insert sheet (30) and also comprise the fixed system (36) with element (361), to be connected to releasedly element (261) corresponding in main leaf (20).

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