CN219595003U - Absorbent article - Google Patents

Abstract

The embodiment of the utility model provides an absorbent article, which comprises a body, wherein the body comprises a surface layer, an absorption layer, a bottom layer and a fold part, the fold part is formed by winding a side sheet to form a three-dimensional shape of a cavity space, the side sheet comprises a first end, a second end, a first folding part and a second folding part, the first folding part comprises a first combining part and a third end, the fold part also comprises a second combining part combined with the surface layer, the first combining part is separated from the second combining part, the fold part also comprises a plurality of elastomers, the elastomers comprise a first elastomer, if the distance between the third end and the first combining part is L1, the distance between the first elastomer and the first combining part is L2, and then 1/3 is less than or equal to L1/L2 is less than or equal to 4/5, on one hand, the abutting surface of the fold part can always face the skin of a user, on the other hand, the problem that the materials are required to be combined in the prior art can be avoided, and the five layers of materials are convenient to produce and manufacture by staggering the combining parts.

Description

Absorbent article

Technical Field

The utility model relates to the field of absorbent articles, in particular to an absorbent article such as a sanitary towel, a protection pad, a paper diaper and the like.

Background

Absorbent articles such as sanitary napkins, panty liners, and diapers are widely used in daily life of people, and generally, these absorbent articles include a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent core interposed between the top sheet and the back sheet, through which body fluid is absorbed and held, and at the same time, in order to prevent side leakage of body fluid in the lateral direction, a leakage preventing barrier is generally provided in the lateral direction.

In the prior art, the leakage barriers commonly used generally have two forms: firstly, the two sides of the top sheet are provided with a 'cushion layer' formed by laying water-repellent materials, and the 'cushion layer' forms a blocking effect, under the form, the 'cushion layer' is directly laid on the top sheet, so that the height of the 'cushion layer' is very limited, on one hand, the 'cushion layer' cannot be well attached to the skin, on the other hand, the 'cushion layer' is still easy to generate side leakage due to lower height, and meanwhile, the use comfort is reduced if the thickness of the 'cushion layer' is increased; the second is, turn over by water-repellent material to set up elastic material at broken line department, when using, under the elastic force effect of elastic material, water-repellent material stands up, forms the containment to greatly increase the effect of enclosing the fender, but under this kind of form, because the elastic force effect of elastic material, can make broken line department conflict skin, cause skin abrasion or cause the use uncomfortable easily.

In order to increase the height of the leakage barriers and at the same time achieve excellent comfort, some improved prior art techniques have been developed, such as the one named CN101686880 a: the absorbent article reveals that the fold portion with the cavity is formed by folding and winding the leak-proof barrier edge, and a plurality of elastic components are arranged at the fold portion, and a three-dimensional effect and excellent comfortableness are formed by the elastic components and the cavity, but the following problems still exist for the prior art structure and implementation mode: firstly, the leakage-proof isolation edge and the surface layer need to be combined by at least five layers of materials in the folding and winding processes, and generally, in the field, the materials should be limited to be less than four layers of materials, or at least the preferred limited materials should be less than four layers of materials, so that a better combination effect can be formed, otherwise, delamination is easy to occur, or unexpected interlayer separation is easy to occur, or the materials are unexpected damaged, such as scalding and the like, and secondly, the positions of the fold parts are easy to deviate outwards in the using process, so that the phenomena of discomfort and the like occur.

Disclosure of Invention

To this end, the present utility model provides an absorbent article to solve the above technical problems.

The utility model provides an absorbent article, includes rectangular body, the body include surface course, absorbed layer, bottom and a pair of fold portion that separates set up in body both sides, every fold portion is rolled up by a side sheet and is formed with the three-dimensional form in a cavity space, the side sheet including be located the first end in the cavity space, with the second end that the bottom combines, be located first turn-over portion, the second turn-over portion of turning over formation by the side sheet between first end and the second end, wherein first turn-over portion includes first joint portion and is located the inboard third end that stretches out of first joint portion, fold portion still include the second joint portion that combines with the surface course, first joint portion separates with the second joint portion, fold portion still include a plurality of elastomer that set up along body length direction, a plurality of elastomer including the first elastomer that is adjacent the third end, if set up, distance between third end and the first joint portion is L1, the distance between first elastomer and the first joint portion is L2, then 1/3L 2/4/4.ltoreq.

Further, L1 is more than or equal to 4mm.

Further, the first folding portion comprises a first layer facing the cavity space and a second layer extending to the outer side of the cavity and combined with the bottom layer, the first combining portion combines the first layer and the second layer, the first layer is connected with the second layer at a third end, the second folding portion comprises a third layer connected with the first layer and a fourth layer extending to the inner side of the cavity space, one end of the fourth layer facing the cavity space is a first end, the second combining portion combines the second layer, the fourth layer, the third layer and the surface layer, and the third layer is connected with the fourth layer at a fourth end.

Further, the first layer and the second layer are separated from each other in a region corresponding to the second bonding portion.

Further, the elastic body is arranged between the first layer and the fourth layer.

Further, the length between the first end and the first combining part is equal to L1.

Further, the fold part comprises a pair of fixing parts which are arranged in a separated mode along the length direction of the body, and the fixing parts comprise a third combining part which is positioned at the outer side of the second combining part and combines the first layer with the second layer and a fourth combining part which is positioned at the inner side of the second combining part and combines the third layer with the surface layer.

Further, the first layer and the second layer are separated from each other outside the first joint portion of the folded portion between the pair of fixing portions.

Further, the fourth layer and the first layer are in a combined state at the fixing part.

Further, the second connecting portion penetrates through the length direction of the body, and the third connecting portion and the fourth connecting portion are only arranged on the fixing portion.

The beneficial effects are that: the embodiment of the utility model provides an absorbent article, which comprises a strip-shaped body, wherein the body comprises a surface layer, an absorption layer, a bottom layer and a pair of separated fold parts arranged at two sides of the body, each fold part is formed by winding a side sheet into a three-dimensional shape with a cavity space, the side sheet comprises a first end positioned in the cavity space and a second end combined with the bottom layer, a first folding part and a second folding part are formed by folding the side sheet between the first end and the second end, the first folding part comprises a first combining part and a third end positioned at the inner side of the first combining part and extending into the cavity, the fold part also comprises a second combining part combined with the surface layer, the first combining part is separated from the second combining part, the fold part also comprises a plurality of elastic bodies arranged along the length direction of the body, the plurality of elastic bodies comprise first elastic bodies adjacent to the third end, if the distance between the third end and the first combining part is L1, and the distance between the first elastic bodies and the first combining part is L2, 1/3L 1/L2/5 is staggered, and the first combining part and the skin can be manufactured by the other side combining part, so that the skin can be prevented from being directly opposite to the surface layer, and the existing combining part can be manufactured on the other side.

Drawings

FIG. 1 is a front view of an absorbent article body according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view at A-A of FIG. 1;

FIG. 3 is a schematic cross-sectional view at B-B of FIG. 1;

FIG. 4 is a schematic view illustrating the arrangement of the third and fourth joints in FIG. 3;

fig. 5 is a schematic view of the second joint arrangement in fig. 2.

A face layer 10; a side sheet 20; a fold portion 21; a first end 21a; a second end 21b; an abutting surface 21c; a cavity space 210; a first layer 2111; a second layer 2112; a third end 2113; a third layer 2121; a fourth layer 2122; a fourth end 2123; a first coupling portion 213; a second coupling portion 214; a third joint 215; a fourth joint 216; an absorbent layer 30; a bottom layer 40; a first elastic body 51; a second elastic body 52.

Detailed Description

Embodiments of the present utility model provide an absorbent article, and the present utility model will be further described with reference to the accompanying drawings.

Meanwhile, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1-4, an absorbent body according to an embodiment of the present utility model includes a body, wherein the body includes a surface layer 10, an absorbent layer 30, and a bottom layer 40.

The body is in a strip shape and comprises a length direction and a width direction, the length direction is an up-down direction in fig. 1, the width direction is a left-right direction, and generally, the left-right direction is also referred to as a side direction, the surface layer 10 is configured on one side close to the skin of a user, and the surface layer 10 is at least partially permeable, which means that body fluid can enter into a structural layer below the surface layer 10 through the surface layer 10, such as an absorption layer 30, and generally, the body fluid can be diffused along the surface layer 10, so as to further improve the absorption efficiency of the absorber on the body fluid.

At least a part of the liquid-permeable means that at least the area of the top sheet 10 corresponding to the body fluid discharge area, which may be the vaginal opening, anus, urethra opening, etc., is liquid-permeable.

Since the top sheet 10 is in contact with the skin, a sheet-like material having a low-irritation and softness, such as gauze, cotton, spun-laced nonwoven fabric, hot air nonwoven fabric, or the like, having a weight per unit area of 10 to 60g/m2, is preferably selected, and a hot air nonwoven fabric composed of thermoplastic synthetic fibers, and polyolefin fibers such as Polyethylene (PE) fibers, polypropylene (PP) fibers, polyamide fibers such as polyester fibers, nylon, or the like may be used as the synthetic fibers constituting the hot air nonwoven fabric, and in some alternative embodiments, natural fibers or viscose fibers may be added at the same time to further reduce irritation to the skin, and these natural fibers may include wood fibers, cotton fibers, or the like.

The absorbent layer 30 is stacked under the surface layer 10, specifically, the absorbent layer 30 is a three-dimensional network structure formed by properly connecting a plurality of fibers entangled with each other, and a plurality of pores are distributed between the three-dimensional network structures, through which body fluid can be absorbed and diffused, and in a preferred embodiment, a polymeric absorbent material (SAP) is included between the three-dimensional network structures to further absorb and retain body fluid through the polymeric absorbent material, and it is understood that the fibers may be fluff pulp.

Further, the absorbent layer 30 may further comprise a cover layer which covers or wraps the three-dimensional network structure, and the cover layer is made of a liquid-permeable material, and in some embodiments, the cover layer may be made of a nonwoven fabric or a toilet paper, and the cover layer is preferably made of a soft sheet material such as gauze, cotton cloth, spunlaced nonwoven fabric, hot air nonwoven fabric, toilet paper, etc. having a weight of 10 to 60g/m2 per unit area, and more preferably, the cover layer has a lower basis weight relative to the surface layer 10.

The bottom layer 40 is stacked below the absorbent layer 30, and includes a first bottom layer 40 adjacent to the absorbent layer 30 and a second bottom layer 40 opposite to the absorbent layer 30, which are stacked, wherein in order to prevent body fluid from penetrating through the surface layer 10 to pollute clothes of a user, the first bottom layer 40 and the second bottom layer 40 are usually made of water-repellent materials, specifically, PE films, SMS nonwoven fabrics, nonwoven fabrics with surfaces subjected to water-repellent treatment, and the like, preferably, the first bottom layer 40 and the second bottom layer 40 can allow gas, such as water vapor, to pass through, but not body fluid can pass through, so that the body fluid cannot be smoky during use.

The facing layer 10 is further provided with a pair of folds 21 disposed separately, more specifically, the folds 21 are disposed along the width direction of the body, as shown in fig. 1, the folds 21 are disposed in a left side area and a right side area of the body, in fig. 2-3, the folds 21 are shown in different positions in the left side area, each fold 21 is formed by winding a side sheet 20 to form a three-dimensional shape of a cavity space 210, each side sheet 20 includes a first end 21a disposed in the cavity space 210, a second end 21b coupled to the bottom layer 40, and a first folded portion and a second folded portion formed by folding the side sheet 20 between the first end 21a and the second end 21b, wherein the first folded portion includes a first bonding portion 213 and a third end 3 disposed inside the first bonding portion 213 and protruding into the cavity, the folds 21 further include a second bonding portion 214 bonded to the facing layer 10, and the first bonding portion 213 is separated from the second folded portion 21120.

More specifically, the first turndown portion includes a first layer 2111 facing the cavity space 210 and a second layer 2112 extending outward of the cavity and joined to the bottom layer 40, the first layer 2111 and the second layer 2112 are joined at a first joint 213, and the first layer 2111 and the second layer 2112 are connected at a third end 2113, and it is understood that the second layer 2112 is formed by turning the first layer 2111 outward. The second turnover part includes a third layer 2121 connected to the first layer 2111 and a fourth layer 2122 extending inward of the cavity 210, one end of the fourth layer 2122 facing the cavity 210 is a first end 21a, the second layer 2112, the fourth layer 2122, the third layer 2121 and the surface layer 10 are combined at a second combining part 214, the third layer 2121 is connected to the fourth layer 2122 at a fourth end 2123, the fourth layer 2122 is formed by folding the third layer 2121 inward, in addition, it is understood that the fourth layer 2122 is located between the first layer 2111 and the third layer 2121, in addition, the first combining part 213 is separated from the second combining part 214, and the first combining part 213 is located in an inner direction of the second combining part 214, the inner direction refers to a direction closer to the third end 2113.

The bonding means that the materials to be bonded are connected to form a whole, and generally, the bonding can be formed by pressing, hot melting or bonding, wherein pressing means that partial materials are applied with pressure to enable fibers between the materials to be entangled to form a connection, for example, fibers of adjacent material layers are extruded to be entangled in a needling or embossing mode, in addition, when the bonding is performed, the materials can be heated simultaneously to enable hydrogen bonds of plant fibers to be bonded to form a better bonding effect, the hot melting can be performed by heating the materials to reach the melting point temperature, then the materials are locally melted, and then the materials are formed into a connection after solidification molding, or external energy such as ultrasonic waves is applied to the materials to enable the materials to be locally melted at high temperature to form a connection after solidification molding, and the bonding can enable the adjacent materials to be connected under the action of the bonding agent through the bonding agent.

In the present embodiment, the first bonding portion 213 bonds only the first layer 2111 and the second layer 2112, and bonds the second layer 2112, the fourth layer 2122, the third layer 2121 and the surface layer 10 at the second bonding portion 214.

The fold portion 21 further includes a plurality of elastic bodies disposed along the length direction of the body, the plurality of elastic bodies including a first elastic body 51 adjacent to a third end 2113, if provided, a distance between the third end 2113 and the first bonding portion 213 is L1, a distance between the first elastic body 51 and the first bonding portion 213 is L2, 1/3.ltoreq.l1/L2.ltoreq.4/5, and it is found that by arranging such that the third end 2113 extends toward the first elastic body 51 and has a length of one L1, when the fold portion 21 is raised to form a three-dimensional shape under the elastic force of the elastic bodies, the area between the third end 2113 and the first bonding portion 213 has four layers in reality, which can maintain the shape or give an abutting force to the third layer 2121 and the fourth layer 2122 with respect to other areas, so that the area between the plurality of elastic bodies of the wrinkled part 21 always faces the skin of the user, more specifically, the plurality of elastic bodies further comprise a second elastic body 52 which is far away from the third end 2113 and faces to the outer side, the area between the plurality of elastic bodies is defined as an abutting surface 21c, as in the present embodiment, the wrinkled part 21 comprises five elastic bodies, the leftmost elastic body is the second elastic body 52, the rightmost elastic body is the first elastic body 51, the abutting surface 21c is the side surface of the first layer 2111 between the first elastic body 51 and the second elastic body 52 facing to the skin, on the other hand, by providing the separation of the first combining part 213 and the second combining part 214, the positions can be staggered during processing and manufacturing, and the first combining part 213 and the second combining part 214 can be kept below four layers, so that the first coupling portion 213 and the second coupling portion 214 have sufficient strength.

Further, 1/2 is less than or equal to L1/L2 is less than or equal to 2/3.

Further, the length of L1 should be 4mm or more, and more preferably L1 is 8-30mm so that there is a sufficient length between the third end 2113 and the first bonding portion 213.

Further, the first layer 2111 and the second layer 2112 corresponding to the second joint 214 are separated.

Further, the elastomer is disposed between the first layer 2111 and the fourth layer 2122.

Further, the length between the first end 21a and the first combining portion 213 is equal to L1, so that the abutting surface 21c is maintained at the intermediate position.

Referring to fig. 3, the fold portion 21 includes a pair of fixing portions disposed separately along the length direction of the body, the fixing portions include a third bonding portion 215 located outside the second bonding portion 214 and bonding the first layer 2111 and the second layer 2112, and a fourth bonding portion 216 located inside the second bonding portion 214 and bonding the third layer 2121 and the surface layer 10, and the side sheet 20 forming the fixing portions is kept in a bonded state by the third bonding portion 215 and the fourth bonding portion 216, and the fold portion 21 located between the fixing portions is formed into a three-dimensional shape having a cavity space 210210.

Further, the fourth layer 2122 and the first layer 2111 are combined at the fixing portion, in this embodiment, the first layer 2111 is folded, and the fourth layer 2122 is sandwiched between a pair of folded first layers 2111 and is combined with the pair of first layers 2111.

Referring to fig. 4 and 5 together, the positions and lengths of the third and fourth coupling portions 215 and 216 are shown in fig. 4 and 5, and the positions and lengths of the second coupling portions 214 are shown, so that it can be understood that the second coupling portions 214 penetrate the body in the longitudinal direction, the third and fourth coupling portions 215 and 216 are only provided at the fixing portions, and it can be understood that the third coupling portions 215 of the pair of fixing portions are separately provided, and similarly, the fourth coupling portions 216 of the pair of fixing portions are separately provided.

The foregoing description is only of embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present utility model or directly or indirectly applied to other related technical fields are included in the scope of the present utility model.

Claims (10)

1. The utility model provides an absorbent article, includes rectangular body, its characterized in that, the body include surface course, absorbed layer, bottom and a pair of fold portion that separates set up in body both sides, every fold portion is rolled up by a side sheet and is formed with the three-dimensional form in a cavity space, the side sheet including be located the first end in the cavity space, with the second end that the bottom combines, be located first folding portion, the second folding portion of being formed by the folding book of side sheet between first end and the second end, wherein first folding portion includes first joint portion and is located the inboard third end that stretches out of first joint portion and to the cavity, fold portion still include the second joint portion that combines with the surface course, first joint portion separates with the second joint portion, fold portion still include a plurality of elastomer that set up along body length direction, a plurality of elastomer include the first elastomer that is close to the third end, if setting up, the distance between third end and the first joint portion is L1, the distance between first elastomer and the first joint portion is 1/3L 2, then 1/L2/4.ltoreq.

2. The absorbent article of claim 1, wherein L1 is 4mm or greater.

3. The absorbent article of claim 1, wherein the first hinge comprises a first layer extending toward the interior of the cavity and a second layer extending toward the exterior of the cavity and joined to the bottom layer, the first joint joining the first layer to the second layer and the first layer being connected to the second layer at a third end, the second hinge comprises a third layer connected to the first layer and a fourth layer extending toward the interior of the cavity, the fourth layer having a first end facing the interior of the cavity, the second joint joining the second layer, the fourth layer, the third layer and the top layer, the third layer being connected to the fourth layer at a fourth end.

4. The absorbent article of claim 3 wherein the first layer and the second layer are separated in a region corresponding to the second bond.

5. The absorbent article of claim 3 wherein said elastomer is disposed between the first and fourth layers.

6. The absorbent article of claim 5 wherein the length between the first end and the first bond is equal to L1.

7. The absorbent article of claim 5, wherein the gathered panel comprises a pair of spaced apart fastening portions along the length of the body, the fastening portions comprising a third fastening portion positioned outside the second fastening portion for fastening the first layer to the second layer and a fourth fastening portion positioned inside the second fastening portion for fastening the third layer to the top layer.

8. The absorbent article of claim 7 wherein the first layer is separated from the second layer outside the first bond of the fold between the pair of fastening portions.

9. The absorbent article of claim 8 wherein the fourth layer is bonded to the first layer at the fastening portions.

10. The absorbent article of claim 9, wherein the second engaging portion extends longitudinally through the body, and the third engaging portion and the fourth engaging portion are disposed only in the fastening portion.