Disposable cover sheet for wearing article

Abstract

To provide a disposable cover sheet for wearing articles being attachable to / detachable from a wearing article and preventing excrement from leaking out from around the legs of the wearing article.SOLUTION: A disposable cover sheet 10 for wearing articles 1 includes a liquid-permeable sheet body 20 and a pair of liquid-impermeable or waterproof leg annular bodies 30 attached to the sheet body 20 and having a central opening 31. In a state of use, the sheet body 20 is detachably attached to the inner surface of the wearing article 1 via fastening means 41 and 42, and parts of the leg annular bodies 30 extend outward from leg openings 7 of the wearing article.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a disposable cover used for a wearing article such as a disposable diaper or a diaper cover. [Background technology]

[0002] Conventionally, absorbent pads have been known for use in wearing articles such as disposable diapers, diaper covers, etc. For example, Patent Document 1 discloses an absorbent pad that can be attached to a diaper, underwear, etc. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-129939 Summary of the Invention [Problem to be solved by the invention]

[0004] The absorbent pad according to the invention disclosed in Patent Document 1 comprises a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body sandwiched between these sheets, and the outer surface of the back sheet has multiple fastening portions extending in the longitudinal direction and covered with release paper.

[0005] When using the absorbent pad, the release paper is peeled off to expose the fastening part, which is then fastened to the inner surface of the crotch region of the worn article. After use, i.e., after the absorbent body has absorbed bodily fluids, the cover sheet can be removed and discarded, and replaced with a new one. Using a disposable cover sheet in this way allows for hygienic disposal of bodily waste without having to replace or discard the worn article.

[0006] However, the absorbent pad is rectangular and placed in the crotch region of the wearing article, and does not extend around the legs of the wearing article, which may cause bodily waste to leak out from around the legs of the wearing article. Furthermore, the absorbent pad has a high production cost due to the presence of an absorbent body, making it less economical for disposable use.

[0007] An object of the present invention is to provide a disposable cover sheet for a wearing article that is detachable from the wearing article and that can prevent body waste from leaking out from around the legs of the wearing article. [Means for solving the problem]

[0008] In order to solve the above problems, the present invention relates to a disposable cover sheet for a worn article.

[0009] The disposable cover sheet for a worn article according to the present invention comprises a liquid-permeable sheet body and a pair of liquid-impermeable or water-proof leg rings having a central opening attached to the sheet body, wherein, in a state of use, the sheet body is detachably attached to the inner surface of the worn article via fastening means, and a portion of the leg rings extends outward from the leg openings of the worn article.

[0010] The disposable cover sheet for a wearing article according to the present invention includes the following preferred embodiments. (1) The sheet body is made of a liquid-permeable fibrous nonwoven fabric, and the leg rings are made of vinyl. (2) The wearing article is a disposable diaper having an absorbent body, and the sheet body covers the entire absorbent body. [Effects of the Invention]

[0011] In the disposable cover sheet for a wearing article according to the present invention, when in use, the liquid-permeable sheet body is removably attached to the inner surface of the wearing article, and a portion of the leg ring extends outward from the leg opening of the wearing article, thereby preventing bodily waste from leaking out through the leg opening and allowing the bodily waste to be disposed of while being retained, thereby providing excellent hygiene and economy. [Brief explanation of the drawings]

[0012] The drawings illustrate particular embodiments of the present invention, including essential features of the invention as well as alternative and preferred embodiments. [Figure 1] 1 is a perspective view of a wearing article using a disposable cover sheet according to the present invention. [Figure 2] FIG. 10 is a diagram showing the wearing article and the cover sheet separated from each other. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] Exploded view of the cover sheet. [Figure 6] FIG. 2 is a front view of the worn article. [Figure 7] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0013] The following embodiment shows one example of an embodiment of a cover sheet 10 for a wearing article 1 according to the present invention, and includes not only essential features of the invention but also optional and preferred features. In the developed view of the wearing article 1, each of the elastics 8 and 9 described below is in a state of being stretched by contraction forces in the lateral direction X and the longitudinal direction Y against its own contraction force to such an extent that gathers generated in the members to which each elastic is attached appear to be substantially absent to the natural eye.

[0014] 1 to 3, the wearing article 1 is a so-called disposable pants-type diaper, which has a longitudinal direction Y and a transverse direction X intersecting the longitudinal direction Y, a skin-facing surface (inner surface) and an opposite non-skin-facing surface (outer surface), and includes a front waist region 2, a rear waist region 3, and a crotch region 4 located between the front waist region 2 and the rear waist region 3. The longitudinal direction Y and the transverse direction X are the same as the longitudinal and transverse directions of the cover sheet 10.

[0015] A disposable cover sheet 10 is detachably attached to the skin-facing surface of the worn article 1.

[0016] The wearing article 1 includes, for example, disposable pants-type diapers and pants-type diaper covers for newborns, infants, and adults. Although not shown, the wearing article 1 also includes open-type disposable diapers and diaper covers equipped with tape fasteners, as long as the technical effects of the present invention are achieved.

[0017] Both side edges of the front waist region 2 and both side edges of the back waist region 3 are joined together via side seal regions 5 extending discontinuously in the longitudinal direction Y. The side seal regions 5 have a plurality of seal portions spaced apart in the longitudinal direction Y. By joining both side edges of the front and rear waist regions 2, 3 together via the side seal regions 5, both side edges of the worn article 1 are formed, and a waist opening 6 and a pair of leg openings 7 are defined. The seal portions can be formed by any of a variety of known joining methods, such as heat sealing, sonic welding, or a combination thereof.

[0018] A plurality of front waist elastics 8 extending in the lateral direction X are arranged at the edge of the waist opening of the front waist region 2, and a plurality of rear waist elastics 9 extending in the lateral direction X are arranged at the edge of the waist opening of the rear waist region 3.

[0019] The wearing article 1, like a normal disposable diaper, has a liquid-permeable inner layer sheet 11 on the skin-facing side, a liquid-impermeable outer layer sheet 12 on the non-skin-facing side, and an absorbent body 14 disposed between the inner and outer layers 11 and 12. Also, like a normal disposable diaper, leg elastics may be disposed around the leg openings 7, and barrier cuffs that stand up in use may be disposed on both sides of the absorbent body 14 in the lateral direction X.

[0020] The absorbent body 14 is in the form of a semi-rigid panel and includes an absorbent core formed from a mixture of fluffed wood pulp and superabsorbent polymer particles (SAP), and a core wrap sheet made of a liquid-permeable nonwoven fabric or the like that encapsulates the absorbent core.

[0021] The absorbent body 14 is bonded to the inner and outer sheets 11, 12 via a hot melt adhesive. The inner surfaces of the inner and outer sheets 11, 12 are bonded to each other via the hot melt adhesive in portions extending outward from the outer peripheral edge of the absorbent body 14. The hot melt adhesive may be applied in any of a variety of known shapes, such as a plurality of lines extending in the longitudinal direction Y, an Ω shape, a spiral shape, a wave shape, etc.

[0022] 3 to 5, the cover sheet 10 has a sheet body 20 and a pair of leg annular bodies 30 attached to the sheet body 20 and having a central opening 31.

[0023] The sheet body 20 has a front edge 20a extending linearly in the lateral direction X, a rear edge 20b extending curvedly in the lateral direction, and side edges 20c, 20d extending longitudinally therebetween. The side edges 20c, 20d have a front portion 21 gently curved toward the front edge 20a and a rear portion 22 curved sharply like a circle toward the rear edge 20b. The cover sheet 10 has a front end portion 23 defined by the front edge 20a and the front portions 21 of the side edges 20c, 20d, and a rear end portion 24 defined by the rear edge 20b and the rear portions 22 of the side edges 20c, 20d, extending curvedly in the lateral direction X.

[0024] The front end 21 of the sheet main body 20 is provided with a first fastening means 41 extending outward in the longitudinal direction Y, and a pair of second fastening means 42 extending outward in the transverse direction X are located on both sides of the rear end 22. The first and second fastening means 41, 42 can be fastened to the inner surface of the wearing article 1 such as a disposable diaper, and may be, for example, a commercially available adhesive tape, a fastening tape having hook elements of a mechanical fastener that can be fastened to a fibrous nonwoven fabric that forms the inner surface of the wearing article 1, or the like.

[0025] The sheet body 20 can be formed from a liquid-permeable and / or water-absorbent sheet, such as a commercially available fibrous nonwoven fabric sheet for bottom wipes or a fibrous nonwoven fabric sheet for absorbing oil in the kitchen.

[0026] The pair of leg rings 30 are rings with an opening in the center, and can be made of a liquid-impermeable or water-resistant sheet or film, such as a vinyl film made of polychlorinated resin, polyethylene resin, etc., which is used in general household vinyl bags. The leg rings 30 can also be formed, for example, by cutting a vinyl bag into strips and joining both ends with an adhesive or the like.

[0027] The pair of leg annular bodies 30 are fixed to the opening edge portions of the rear portion 22 of both side edges 20c, 20d of the seat main body 20 by known joining means such as adhesive or welding.

[0028] 1 and 3, the cover sheet 10 is fastened to the skin-facing side of the wearing article 1 via first and second fastening means 41, 42. Specifically, the first fastening means 41 located at the front end 23 of the sheet main body 20 is fastened to the inner surface of the front waist region 2 of the wearing article 1, and the second fastening means 42 located at the rear end 24 is fastened to the inner surface of the rear waist region 3.

[0029] The leg loops 30 of the cover sheet 10 are arranged to extend outward from the leg openings 7 of the wearing article 1. The dimensions of the cover sheet 10 can be appropriately changed in design to match the size of the wearing article 1, but as shown in the figure, it is preferable that the cover sheet 10 is large enough to cover at least the entire absorbent body 14 of the wearing article 1 and have the leg loops 30 extend outward from the leg openings 7.

[0030] 6 and 7, when the cover sheet 10 is in use, the wearer's legs 50 are inserted through the central openings 31 of the leg loops 30 of the cover sheet 10. Even if the size of the central opening 31 of the leg loops 30 is too small for the wearer's legs 50 to pass through, the legs 50 can be inserted by tearing a portion of the leg loops 30 and expanding the central opening 31. Furthermore, the leg loops 30 may be stretchable, or a ring-shaped elastic body may be disposed on the edge of the central opening 31 so that the edge of the opening stretches to fit the size of the legs 50.

[0031] In this state of use, when excrement is excreted, the leg rings 30 made of liquid-impermeable or water-resistant vinyl or the like are positioned at the opening edges of the leg openings 7 of the wearing article 1, thereby preventing excrement such as urine and feces from leaking out of the leg openings 7 to the outside.

[0032] Furthermore, since the sheet body 20 of the cover sheet 10 is liquid-permeable, urine, loose stools, etc. pass through the sheet body 20 and are absorbed by the absorbent body 14 of the wearing article 1.

[0033] After excretion, the wearer removes the wearing article 1, removes the cover sheet 10, and rolls up the excreted feces while enveloping it in the cover sheet 10 for disposal, thereby enabling hygienic disposal of the excreted feces while retaining them. Furthermore, when the excreted feces is rolled up for disposal, the rolled up state can be maintained by using the first and second fastening means 41, 42.

[0034] Even if some of the bodily waste is absorbed by the absorbent body 14 of the wearing article 1, the wearing article 1 can be reused as long as the absorption performance of the absorbent body 14 is maintained. In other words, by replacing only the cover sheet 10 without replacing with a new wearing article 1, the labor required for replacing the wearing article 1 can be eliminated and the amount (number) of wearing articles 1 used can be reduced, which is economical.

[0035] The cover sheet 10 is large enough to cover the entire absorbent body 14, and since a new cover sheet 10 is used, the absorbent body 14 that has absorbed the excrement does not come into contact with the wearer's skin, allowing for hygienic use. Furthermore, reducing the number of worn articles 1 that are discarded can contribute to realizing environmental sustainability, which is a social issue.

[0036] All features that would be understood by one skilled in the art from the description, drawings, and claims may be used independently or in any combination with one or more other features, even if described in combination only in connection with certain other features. [Explanation of symbols]

[0037] 1. Wearable items (disposable pants-type diapers) 7 Leg opening 14 Absorbent 10 Cover Sheet 20 seat body 30-leg annulus 41 First fastening means 42 Second fastening means

Claims

1. A disposable cover sheet for a worn article, comprising: The sheet has a liquid-permeable sheet body and a pair of liquid-impermeable or water-blocking annular leg bodies attached to the sheet body and having a central opening, A disposable cover sheet for a wearing article, characterized in that, in a state of use, the sheet body is detachably attached to the inner surface of the wearing article via fastening means, and a portion of the leg ring body extends outward from the leg opening of the wearing article.

2. 2. The disposable cover sheet for a wearing article according to claim 1, wherein the sheet body is made of a liquid-permeable fibrous nonwoven fabric, and the leg loops are made of vinyl.

3. 3. The disposable cover sheet for a wearing article according to claim 1, wherein the wearing article is a disposable diaper having an absorbent body, and the sheet body covers the entire absorbent body.

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