JP2023109275A - Crotch part fit supporter - Google Patents

Abstract

To provide a crotch fit supporter which applies the excellent wearing feeling to a paper diaper product, eliminates a gap by improving the fitness between a crotch part of a wearer and a crotch part of the paper diaper product and can prevent horizontal leakage and side leakage of the body fluid.SOLUTION: There is provided a crotch fit supporter 1 which is worn over an underpants type paper diaper 50 when wearing the underpants type paper diaper 50, in which a front side part A that is mainly in contact with a lower abdominal part of a wearer of the underpants type paper diaper 50, a crotch part B that is mainly in contact with the crotch part of the wearer and a rear side part C that is mainly in contact with the hip of the wearer are continuously provided in the longitudinal direction in this order, the crotch part B having the edges on both sides in the width direction recessed in the curved shape to the inner side in the width direction, which comprises one or a plurality of hook tapes 2 that are arranged on the rear surface of the front side part A and rear side part C, and a pair of expansion/contraction members 3 which is arranged in the curved shape on the rear surface along the edges on both sides in the width direction of the crotch part B.SELECTED DRAWING: Figure 2

Description

The present invention relates to a crotch fitting supporter.

Disposable diaper products such as pants-type disposable diapers are widely used as alternative underwear for infants and adults. When choosing a pants-type disposable diaper for adults, it is difficult to find a pants-type disposable diaper that is optimal for one's own size, because the body shape differs greatly from person to person, unlike infants. Even if the size does not fit, many people continue to use the pants-type disposable diapers they have purchased from an economical point of view. However, when a pants-type paper diaper that does not fit the size is worn, there is a problem that not only does leakage occur due to fit and size mismatch, but also the feeling of wearing deteriorates. Various proposals have been conventionally made for such problems.

In Patent Document 1, an absorbent main body having an absorbent body and the absorbent main body are attached to form a leg-surrounding portion that contacts the wearer's leg circumference and a waist-surrounding portion that contacts the waist circumference of the wearer together with the absorbent main body. and a fastening tape whose one end is fixed to the outer surface of the waist circumference and whose other end can be fastened, and the waist is changed by changing the fastening position of the other end of the fastening tape A pants-type disposable diaper is disclosed in which the size of the surrounding portion can be adjusted and the other end can be fastened on the abdomen side of the non-skin side surface of the waist portion. According to Patent Document 1, it is described that the waist size can be easily adjusted (paragraph 0007).

JP-A-2008-80026

The pants-type disposable diaper described in Patent Document 1 includes a fastening tape whose one end is fixed to the skin side surface of the waist portion and whose other end can be fastened, and by changing the fastening position of the other end. It is configured so that the size of the waist portion can be adjusted. However, since one end of the fastening tape is fixed to the pants-type paper diaper, and the adjustment range of the waist size is limited, the material constituting the pants-type diaper is biased, resulting in a decrease in fitting and wearing comfort. A gap is generated between the user's body and the paper diaper, and body fluids are likely to leak from the side.

Further, even if the size of the waist portion of the pants-type disposable diaper is adjusted, it cannot be said that the fit between the crotch portion of the wearer and the crotch portion of the pants-type disposable diaper is sufficiently improved. If this fit is not sufficient, a gap is likely to occur between the crotch portion of the wearer and the crotch portion of the pants-type disposable diaper, and such a gap directly leads to side leakage of bodily fluids. Patent Document 1 does not describe means for improving the fit between the crotch portion of the wearer and the crotch portion of the pants-type disposable diaper.

An object of the present invention is to provide a disposable diaper product with a good feeling of wearing, improve the fit between the crotch part of the wearer and the crotch part of the disposable diaper product, eliminate the gap, and prevent side leakage of body fluids. To provide an inseam fit supporter capable of preventing.

As a result of intensive research to solve the above problems, the present inventors have found that by adopting a predetermined structure, the fit between the wearer's crotch region and the disposable diaper product can be improved and the feeling of wearing can be improved. The present inventors succeeded in obtaining a crotch fitting supporter whose size can be adjusted according to the body shape of the wearer and which is effective in preventing side leakage and underarm leakage of body fluids, thereby completing the present invention. The present invention relates to an inseam fit supporter described below.

(1) A crotch fit supporter that is worn over the disposable diaper product when the disposable diaper product is worn,
The front portion of the disposable diaper product mainly contacts the lower abdomen of the wearer, the crotch portion mainly contacts the crotch portion of the wearer, and the rear portion mainly contacts the buttocks of the wearer. are connected in the longitudinal direction in order,
The crotch portion has edges on both sides in the width direction curvedly recessed inward in the width direction,
one or more hook tapes disposed on the undersides of the front side and the back side;
A crotch fitting supporter comprising a pair of elastic members arranged in a curved shape on the back surface along both edges in the width direction of the crotch portion.
(2) The crotch fitting supporter according to (1) above, wherein the front side portion and the rear side portion have planar shapes symmetrical in the longitudinal direction.
(3) The length dimension is 40 cm or more and 60 cm or less, the width dimension of each of the front side portion and the rear side portion is 20 cm or more and 30 cm or less, and the width dimension of the crotch portion is 10 cm or more and 15 cm or less. Or the inseam fit supporter of (2).
(4) The crotch fitting supporter according to any one of (1) to (3) above, which is composed of a woven fabric, knitted fabric, nonwoven fabric, or a laminate thereof.
(5) Any one of (1) to (4) above, wherein two hook tapes are arranged on each of the front side portion and the rear side portion, and each hook tape has an area of 16 cm ² or more. Inseam fit supporter.
(6) The crotch fit supporter according to any one of (1) to (5) above, wherein the tension of the stretchable member is such that the length of the crotch fit supporter main body shrinks by 30% or more in a natural state.

According to the present invention, a good feeling of wearing is imparted to a disposable diaper product, and the fit between the crotch portion of the wearer and the crotch portion of the disposable diaper product is improved to eliminate the gap, thereby preventing lateral leakage of body fluids and underarm leakage. A preventable inseam fit supporter is provided.

Fig. 2 is a perspective view schematically showing one embodiment of attachment of the crotch fitting supporter according to this embodiment to a disposable diaper product. Fig. 2 is a plan view schematically showing the configuration of the crotch fitting supporter according to the present embodiment; (a) shows the front surface and (b) shows the back surface. 1 is a schematic development view of a paper diaper product; FIG. FIG. 4 is a schematic cross-sectional view taken along the line XX shown in FIG. 3;

In this specification, wearing the pants-type disposable diaper 50 refers to a state in which the diaper is worn on the wearer's body, regardless of whether it is before or after absorption of bodily fluids. The longitudinal direction of the pants-type disposable diaper 50 is the direction indicated by Y in the drawing that extends from front to back through the crotch of the wearer when the pants-type disposable diaper 50 is worn, and the width direction is the direction relative to the longitudinal direction. The thickness direction is the direction indicated by Z in the drawing, in which the constituent members are laminated. The skin-side surface of the pants-type disposable diaper 50 and its constituent members is the surface that contacts or faces the wearer's skin, and the non-skin-side surface is the surface that contacts or faces the clothing of the wearer. is the surface. Body fluids refer to liquids excreted from the body to the outside of the body, such as water in urine, blood, and loose stools.

<inseam fit supporter>
Hereinafter, the crotch fitting supporter 1 of this embodiment will be described with reference to the drawings. FIG. 1 shows an example of how the crotch fitting supporter 1 is attached to a pants-type disposable diaper 50 . FIG. 2 shows the crotch fitting supporter 1. FIG. FIG. 3 shows a pants-type paper diaper 50. FIG. FIG. 4 shows an absorbent body 51 provided in a pants-type disposable diaper 50. As shown in FIG. Each drawing does not define the shape of the crotch fitting supporter 1, the pants-type paper diaper 50, and each component, or the relationship of sizes. The crotch fit supporter 1 of the present embodiment is mainly suitable for adjusting the fit to the body shape of the wearer of disposable diaper products such as pants-type disposable diapers for adults and elderly people, disposable diapers for incontinence, and tape-fastening type disposable diapers. Available.

As shown in FIG. 1 , the crotch fit supporter 1, for example, on the non-skin side surface of the pants-type paper diaper 50, has the front side part A mainly in contact with the lower abdomen of the wearer of the pants-type paper 50, and the crotch part B. A pants-type disposable diaper is formed by hook tapes 2 arranged on the back surfaces of the front side A and the rear side B, with the rear side C mainly in contact with the wearer's buttocks, and the wearer's crotch part mainly in contact with the wearer's crotch part. A pair of stretchable members arranged on the back surface of the crotch portion B is attached to the wearer's thighs and crotch portion so as to fit tightly to the wearer's thighs and crotch portions.

According to the crotch fit supporter 1 of the present embodiment, it is possible to fit the crotch part and the leg part of the disposable diaper product according to the body shape of the wearer of the paper diaper product, and furthermore, the body shape of the wearer of the paper diaper product and the physical condition at that time. It is possible to adjust the size according to the size of the body, and prevent side leakage of body fluids, armpit leakage, etc. caused by the underbody not fitting properly.

(structure)
The crotch fit supporter 1 of the present embodiment is a band-shaped belt that fits the pants-type disposable diaper 50, particularly the crotch portion thereof, to the wearer according to the body shape of the wearer of the pants-type disposable diaper 50. As shown in FIG. A front side portion A that mainly contacts the lower abdomen of the wearer of the pants-type disposable diaper 50, a crotch portion B that mainly contacts the crotch portion of the wearer, a rear side portion C that mainly contacts the buttocks of the wearer, are connected in this order in the longitudinal direction, and the edges on both sides in the width direction of the crotch portion B are curved and recessed inward in the width direction. and a pair of stretchable members 3 curvedly arranged on the back surface along both sides of the crotch portion B in the width direction.

In a preferred embodiment, the front side portion A and the rear side portion B are configured in a longitudinally symmetrical planar shape. By forming the front side portion A and the rear side portion B into the same shape, the front and rear portions become free, and the convenience for the wearer can be improved. In addition, the hook tape 2 allows the inseam fit supporter 1 to be fixed to the non-skin side surface of the pants-type paper diaper 50 . The pair of stretchable members 3 can improve fit to the wearer's thighs and crotch area, eliminate gaps, and prevent side leakage and underarm leakage of body fluids. The width of the crotch portion B is gradually or continuously widened toward the boundary between the front side portion A and the rear side portion C, so that the pants-type disposable diaper 50 and the wearer's thighs and crotch portions are aligned. The adhesion of is further improved.

(size)
The size of the inseam fit supporter 1 may be divided into several sizes, such as 3S size, SS size, S size, M size, L size, LL size, 3L size, etc., according to the wearer's height, body type, etc. However, for example, as a whole, as shown in FIG. The width direction dimension (minimum width dimension) b of is, for example, in the range of 10 cm or more and 15 cm or less, and the longitudinal dimension c of the crotch portion B is in the range of, for example, 30 cm or more and 70 cm or less. By having such a numerical range, the crotch fit supporter 1 can be easily adapted to many wearers regardless of the wearer's body size, and in particular, the crotch region B and the wearer's thighs and The fit with the crotch part is improved.

(Material)
As the crotch fitting supporter 1, for example, cloth materials such as woven fabrics, knitted fabrics, non-woven fabrics, and laminates of the same or different types thereof can be used. The crotch fit supporter 1 is washable. In a preferred embodiment, when a cloth material is used as the material constituting the support portion such as the crotch portion B, the fibers constituting the cloth material include polyester fiber, nylon fiber, synthetic fiber such as thermoplastic polyurethane fiber, cotton, silk, and the like. of natural fibers. Also, the crotch portion B may be constructed using a stretchable cloth material. In the crotch fit supporter 1, the front side portion A and the rear side portion C may be made of the same cloth material, and the crotch portion B may be made of a cloth material different from that of the front side portion A and the rear side portion C. The crotch portion B and the rear side portion C may be integrally constructed of the same cloth material.

(hook tape)
The hook tapes 2 are arranged so as to be positioned on the back surfaces (skin-side surfaces) of the front side portion A and the rear side portion C of the crotch fit supporter 1 when the inseam fit supporter 1 is worn over the pants-type disposable diaper 50. and at least its skin-side surface can engage with the non-skin-side surface of the pants-type disposable diaper 50 . In addition to the hook tape 2, for example, mechanical fasteners such as hook-and-loop fasteners are attached to both the back side surfaces (skin side surfaces) of the front side portion A and the rear side portion C of the crotch fit supporter 1 and the non-skin side surface of the pants-type disposable diaper 50. may be placed. The number of hook tapes 2 can be appropriately selected according to the dimensions and plan view shape of the hook tapes 2, the dimensions of the front side portion A and the rear side portion C, and the like. It is preferable to arrange two hook tapes 2 with rounded corners side by side in the width direction. The area of one hook tape 2 is, for example, 16 cm ² or more from the viewpoint of adhesion to the non-skin side surface of the pants-type disposable diaper 50 . Examples of the plan view shape of the hook tape 2 include square, rectangle, hexagon, octagon, and circle.

(Expansion member)
The stretchable member 3 extends along the curved width side edge of the crotch portion B on the back surface (skin side surface) of the crotch portion B of the crotch fit supporter 1 when the inseam fit supporter 1 is worn from above the pants-type disposable diaper 50 . The diaper 50 is arranged along the groin area of the wearer to improve the adhesion between the wearer's crotch area and the upper part of the thigh and the underpants-type paper diaper 50, thereby preventing side leakage of bodily fluids. As the elastic member, for example, a string-like, string-like, or band-like one made of natural rubber, synthetic rubber, polyurethane, or the like can be used as appropriate. Among the stretchable members, the tension is preferably such that the length of the crotch fit supporter 1 shrinks by 30% or more in a natural state.

<Pants type paper diaper>
The underpants-type paper diaper 50 to which the crotch fitting supporter 1 of the present embodiment can be attached will be described in more detail below. As shown in FIGS. 1 and 3, the pants-type paper diaper 50 has an abdominal portion 13 that mainly contacts the abdomen of the wearer, a dorsal portion 15 that mainly contacts the dorsal side of the wearer, and an abdominal side. An outer body 60 that includes a crotch portion 14 interposed between the portion 13 and the dorsal portion 15 and having a substantially belt-like shape that covers the wearer's crotch portion in the longitudinal direction, and that constitutes the outer shape of the pants-type disposable diaper 50. and an absorbent body 51 that is supported on the skin-side surface of the crotch portion 14 and absorbs and retains bodily fluids. The hook tapes 2 provided on the back side surfaces of the front side portion A and the rear side portion C of the crotch fitting supporter 1, as shown in FIG. The crotch portion B of the crotch fit supporter 1 is fixed by engaging with the side surface, and covers the crotch portion 14 of the pants-type paper diaper 50, and the elastic member 3 connects the crotch portion 14 of the pants-type paper diaper 50 with the crotch portion of the wearer and the wearer's crotch portion. It is worn so as to eliminate the gap with the upper part of the thigh.

The longitudinal dimension of the underpants-type paper diaper 50 when unfolded as shown in FIG. The pants-type disposable diapers 50 having the unfolded dimensions are made into adult-use pants-type disposable diapers 50 of various sizes such as S size, M size, L size, etc., after arranging an elastic stretchable member in a predetermined area as necessary. be able to.

The exterior body 60 and the absorbent body 51 of the pants-type paper diaper 50 of this embodiment have, for example, the following configurations.

<Exterior body>
The exterior body 60 shown in FIGS. 1 and 3 includes an abdominal portion 13 that mainly contacts the abdomen of the wearer, a dorsal portion 15 that mainly contacts the back of the wearer, and an abdominal portion 13 and the dorsal portion. 15 and is divided into a crotch portion 14 that mainly contacts the crotch portion of the wearer. The crotch part 14 supports most or all of the absorbent body 51 on the back sheet 30 side with its skin-side surface.

As shown in FIGS. 1 and 3, the exterior body 60 has a ventral portion 13 and a dorsal portion 15 which are substantially symmetrical with respect to the imaginary center line extending in the width direction at the center in the longitudinal direction of the crotch portion 14, The absorber 51 is also arranged substantially symmetrically with respect to the virtual center line. Then, the absorbent body 51 is folded in half along the imaginary center line, and the lateral side edges of the ventral portion 13 and the dorsal portion 15 are joined by a pair of side seal portions 65 . The side seal portion 65 is formed by joining a non-woven fabric or the like in a predetermined region of the exterior body 60 by a welding method such as heat seal welding or ultrasonic welding. The pants-type paper diaper 50 as a whole is configured to have a detachable pants-like outer shape.

The exterior body 60 is composed of one or more nonwoven fabrics. As shown in FIGS. 1 and 3, the exterior body 60 of the present embodiment includes an exterior nonwoven fabric sheet 70, an interior nonwoven fabric sheet 69 arranged on the skin side of the exterior nonwoven fabric sheet 70, and an auxiliary nonwoven fabric arranged as necessary. seat 68; The auxiliary nonwoven fabric sheet 68 covers, for example, the ends of the absorbent body 51 to soften the contact of the absorbent body 51 with the skin. At one edge in the width direction of the longitudinal end of the ventral portion 13, there are three layers along the longitudinal direction, including an area in which the exterior nonwoven fabric sheet 70 and the interior nonwoven fabric sheet 69 are laminated in two layers, and the auxiliary nonwoven fabric sheet 68. and may be present. Although not shown, such a nonwoven fabric laminated structure is the same for the other widthwise edge of the ventral portion 13 and both widthwise edges of the dorsal portion 15 . The non-woven fabric laminated structure of the exterior body 60 is not limited to this embodiment, and conventionally known various embodiments can be employed without particular limitation.

The outer nonwoven fabric sheet 70, the inner nonwoven fabric sheet 69, and the auxiliary nonwoven fabric sheet 68 are respectively nonwoven fabrics such as thermal bonded nonwoven fabrics, air-through nonwoven fabrics, and spunbond nonwoven fabrics, preferably spunbond nonwoven fabrics. A nonwoven fabric made of a plastic resin can be used. When using these nonwoven fabrics, the basis weight is, for example, in the range of 10 g/m ² or more and 40 g/m ² or less.

As shown in FIGS. 1 and 3, one or a plurality of elastic members 61, 62, 63, 64, etc. may be provided in a predetermined region of the exterior body 60, if necessary. For example, a plurality of waist region elastic elastic members 63 are arranged along the width direction in the ventral waist region 3A and the back waist region 15A, A plurality of waist region elastic stretchable members 61 are arranged along the width direction, and leg circumference elastic stretchable members 64 are arranged along the edges of the leg openings 12 . A plurality of gathers are formed on the surface of the exterior body 60 by disposing the elastic stretchable member. As the elastic members 61, 62, 63, 64, any known ones can be used. or in combination of two or more.

<Absorber>
3 and 4, the absorbent body 51 includes a liquid-permeable top sheet 10, a liquid-impermeable back sheet 30, and an absorbent core disposed between the top sheet 10 and the back sheet 30. 20 and three-dimensional gathers 40 provided for leak prevention purposes. Note that the absorbent body 51 of the present embodiment has the top sheet 10, the absorbent core 20, and the back sheet 30 as basic structural units. Various known modifications can be made, such as disposing a liquid-permeable transfer sheet (not shown) or a liquid-permeable second sheet (not shown) between the core 20 and the core 20 . Hereinafter, the constituent members of the absorbent core 20 will be described in more detail in the order of the top sheet 10, the absorbent core 20, the back sheet 30, and the three-dimensional gathers 40. FIG.

(top sheet)
The top sheet 10 is a liquid-permeable sheet-like base material that allows body fluids to pass quickly toward the absorbent core 20 and spreads the body fluids in the surface direction of the absorbent core 20 . The topsheet 10 is preferably a base material that is soft to the touch and non-irritating to the wearer's skin so that it may be in direct contact with the wearer's skin. Examples of the substrate include a hydrophilic sheet, a composite nonwoven fabric which is a laminate of hydrophilic sheets of the same or different types, an open film such as an open polyethylene film, and a foamed film such as a polyethylene foam and a urethane foam. Hydrophilic sheets include, for example, synthetic fibers made of synthetic resins such as polypropylene and polyethylene, regenerated fibers such as rayon, and natural fibers such as cotton. A spunbond nonwoven fabric etc. are mentioned. Among these, each nonwoven fabric is preferable.

The surface of the top sheet 10 may be embossed or perforated from the viewpoint of improving liquid permeability. From the viewpoint of reducing irritation to the skin, the top sheet 10 may contain one or more of lotions, antioxidants, anti-inflammatory ingredients, pH adjusters, antibacterial agents, moisturizers, and the like. The basis weight of the top sheet 10 is, for example, in the range of 15 g/m ² or more and 40 g/m ^{2 or} less from the viewpoint of strength, workability, and liquid return amount. The shape of the top sheet 10 is not particularly limited as long as it covers part or all of the absorbent core 20 required to guide body fluids to the absorbent core 20 without leakage.

(absorbent core)
The absorbent core 20 is arranged, for example, between the top sheet 10 and the back sheet 30 to absorb and retain bodily fluids that have permeated the top sheet 10 . The absorbent core 20 has a longitudinal dimension (maximum length) of, for example, 100 mm or more and 800 mm or less, 150 mm or more and 500 mm or less, or 270 mm or more and 500 mm or less. The widthwise dimension (maximum width) of the absorbent core 20 is, for example, in the range of 50 mm or more and 500 mm or less, 60 mm or more and 400 mm or less, or 70 mm or more and 105 mm or less. Further, when the absorbent core 20 has an hourglass shape in plan view, the longitudinal dimension is in the range of 180 mm or more and 800 mm or less, and the width dimension of the ventral portion and the dorsal portion that contact the abdomen and the back of the wearer, respectively. Both are in the range of 60 mm or more and 400 mm or less, and the width direction dimension of the crotch portion that contacts the wearer's crotch portion is in the range of 90 mm or more and 250 mm or less. All or part of the absorbent core 20 may be embossed. Examples of the planar shape of the absorbent core 20 include an hourglass shape, an I shape, a rectangle, a square with rounded corners, and an ellipse.
Some absorbent cores 20 contain, for example, absorbent fibers and superabsorbent polymers (hereinafter also referred to as "SAP") as absorbent base materials.

(absorbent fiber)
Absorbent fibers are not particularly limited as long as they are generally used for absorbent articles such as sanitary napkins, paper diapers, and incontinence pads. elastic nonwoven fabrics, and the like. Among these, fluff pulp is preferable from the viewpoint of absorbability. Examples of fluff pulp include wood pulp (eg, bleached softwood kraft pulp (N-BKP) such as southern pine and Douglas fir), synthetic fibers, resin fibers, flocculated materials such as non-wood pulp, and the like. When fluff pulp is used as the absorbent fiber in the absorbent core 20, the basis weight of the absorbent fiber is, for example, in the range of 100 g/m ² or more and 800 g/m ² or less, or in the range of 325 g/m ² or more and 615 g/m ^{2 or} less. be. This allows it to absorb more bodily fluids without sacrificing texture.

(super absorbent polymer)
The superabsorbent polymer is not particularly limited as long as it can absorb bodily fluids and prevent backflow. Polyacrylates, polyaspartates, (starch-acrylic acid) graft copolymers, (acrylic acid-vinyl alcohol) copolymers, (isobutylene-maleic anhydride) copolymers and saponified products thereof. Among these, polyacrylates are preferred, alkali metal polyacrylates are more preferred, and sodium polyacrylate is even more preferred, from the viewpoint of absorption per weight. A superabsorbent polymer can be used individually by 1 type or in combination of 2 or more types.

The superabsorbent polymer is used, for example, in the form of particles, fibers, etc., but is preferably used in the form of particles from the viewpoint of ease of handling. At this time, by avoiding the use of a fine powder superabsorbent polymer with poor fluidity as a powder and using a superabsorbent polymer having a medium particle size, the basic performance related to absorption is improved, and the absorbent core 20 It is possible to reduce the rugged tactile sensation caused by hardening. The median particle size of the superabsorbent polymer is, for example, in the range of 50 µm to 600 µm or in the range of 100 µm to 500 µm.

The basis weight of the SAP in the absorbent core 20 is, for example, in the range of 60 g/m ² to 450 g/m ² or in the range of 245 g/m ² to 445 g/m ² . By setting the basis weight of SAP within the numerical range described above, it is possible to prevent gel blocking in the absorbent core 20 and to allow the absorbent core 20 to absorb a large amount of body fluid. In addition, in the absorbent core 20, the ratio of the weight of the superabsorbent polymer to the weight of the entire absorbent core 20, (weight of the superabsorbent polymer/weight of the entire absorbent core 20) x 100 (%) is, for example, It is in the range of 15 wt% or more, or in the range of 15 wt% or more and 70 wt% or less.

In the absorbent core 20, the absorbent fibers and the SAP may be formed by mixing SAP particles in the absorbent fibers, or may be an SAP sheet in which the SAP particles are fixed between the absorbent fibers. Moreover, as another form of the absorbent core 20, an absorbent sheet containing a plurality of hydrophilic nonwoven fabrics and a superabsorbent polymer fixed between the hydrophilic nonwoven fabrics can be used.

(Carrier sheet)
In this embodiment, the entire absorbent core 20 may be wrapped with a carrier sheet (not shown). As the carrier sheet, any hydrophilic sheet commonly used in this field can be used, for example, hydrophilic nonwoven fabrics such as thermal bond nonwoven fabric, spunbond nonwoven fabric, air-laid nonwoven fabric, air-through nonwoven fabric, pulp-containing nonwoven fabric, tissue paper, and absorbent paper. etc. Among hydrophilic nonwoven fabrics, hydrophilic nonwoven fabrics such as thermal bonded nonwoven fabrics, spunbond nonwoven fabrics, air-through nonwoven fabrics, and pulp-containing nonwoven fabrics are more preferred, and air-through nonwoven fabrics, pulp-containing nonwoven fabrics, spunbond nonwoven fabrics, and the like are more preferred. Further, the thickness of the carrier sheet is, for example, 0.10 mm or more and 0.25 mm or less, and the basis weight is, for example, 5 g/m ² or more and 40 g/m ² or less.

(back seat)
The back sheet 30 may be formed using a liquid-impermeable breathable or non-breathable base material that does not allow the body fluid retained by the absorbent core 20 to wet the clothes. Examples thereof include resin films and composite sheets that are laminates of resin films and nonwoven fabrics. The nonwoven fabric used for the composite sheet is not particularly limited in manufacturing method, and examples thereof include single-layer nonwoven fabrics such as spunbond nonwoven fabrics and meltblown nonwoven fabrics, spunbond nonwoven fabric/meltblown nonwoven fabric laminates, spunbond nonwoven fabric/meltblown nonwoven fabric/spunbond nonwoven fabric laminates. Composite nonwoven fabrics such as bodies, composite materials thereof, and the like. Examples of resin films include polyester, polyvinyl alcohol, polyethylene, polypropylene, composite films of polyethylene and polypropylene, and the like.

The basis weight of the backsheet 30 is, for example, in the range of 15 g/m ² or more and 60 g/m ² or less, or in the range of 15 g/m ² or more and 40 g/m ² or less, from the viewpoint of strength and workability. In addition, it is preferable that the back sheet 30 has air permeability in order to prevent stuffiness during wearing. In order to make the back sheet 30 air-permeable, for example, a filler may be added to the base resin film, or the back sheet 30 may be embossed. Calcium carbonate can be used as a filler, and a known method can be used without limitation as a method for blending the filler.

(Three-dimensional gather)
For example, the three-dimensional gathers 40 are formed along the length direction of the absorbent body 51 near both ends in the width direction of the absorbent body 51 in order to prevent lateral leakage of bodily fluid excreted by the wearer of the pants-type paper diaper 50 . It is attached to the side of the skin. The three-dimensional gathers 40 include an elastic stretchable member 40a and a water-repellent and/or waterproof sheet member 40b.

The elastic stretchable member 40a is arranged in the vicinity of the free end (the other end) of the sheet member 40b along the length direction, and provides the free end with uprightness so that the free end of the sheet member 40b and its neighboring area can be worn. Make it deformable according to the body shape of the person. In the present embodiment, the sheet member 40b has one widthwise end (fixed end) fixed near both widthwise ends of the skin side surface of the back sheet 30, and a widthwise intermediate portion fixed near both widthwise ends of the skin side surface of the top sheet 10. and the other end in the width direction is a free end having an upright property. The fixed position of the fixed end (one end in the width direction) of the sheet member 40b is not limited to this embodiment. all or part of each edge of the joined body, near both width direction ends of the skin side or non-skin side of the joined body, near both width direction ends of the skin side of the top sheet 10, and the like.

The sheet member 40b is a water-repellent and/or waterproof sheet, and is made of, for example, non-woven fabric. As the nonwoven fabric for the first sheet member, a water-repellent and/or waterproof (liquid-impermeable) nonwoven fabric made of hydrophobic fibers can be used without particular limitation. Composite nonwoven fabrics (SMS nonwoven fabrics), which are nonwoven fabric/meltblown nonwoven fabric/spunbond nonwoven fabric laminates, and the like can be mentioned. The basis weight of the sheet member 40b is, for example, in the range of 13 g/m ² or more and 20 g/m ² or less. As the elastic stretchable member 40a, for example, a string-like, string-like, or belt-like member made of natural rubber, synthetic rubber, polyurethane, or the like can be used as appropriate.

Although the present invention has been described using the embodiments, it goes without saying that the technical scope of the present invention is not limited to the scope described in the above embodiments and examples. It is obvious to those skilled in the art that various modifications or improvements can be made to the above embodiments. In addition, it is clear from the description of the scope of the claims that forms with such modifications or improvements can also be included in the technical scope of the present invention.

Reference Signs List 1 crotch fit supporter 2 hook tape 3 elastic member 10 top sheet 11 waist opening 12 leg opening 13 ventral part 14 crotch part 15 dorsal part 20 absorption core 30 back sheet 40 three-dimensional gathers 40a elastic elastic member 40b sheet member 50 Absorbent article 51 Absorbent body 60 Exterior body 61, 62, 63, 64 Elastic stretchable member 65 Side seal part 68 Auxiliary nonwoven fabric sheet 69 Interior nonwoven fabric sheet 70 Exterior nonwoven fabric sheet

Claims (6)

A crotch fit supporter to be worn over the disposable diaper product when the disposable diaper product is worn,
The front portion of the disposable diaper product mainly contacts the lower abdomen of the wearer, the crotch portion mainly contacts the crotch portion of the wearer, and the rear portion mainly contacts the buttocks of the wearer. are connected in the longitudinal direction in order,
The crotch portion has edges on both sides in the width direction curvedly recessed inward in the width direction,
one or more hook tapes disposed on the undersides of the front side and the back side;
A crotch fitting supporter comprising a pair of elastic members arranged in a curved shape on the back surface along both edges in the width direction of the crotch portion. The crotch fitting supporter according to claim 1, wherein the front side portion and the rear side portion have planar shapes symmetrical in the longitudinal direction. The length dimension is 40 cm or more and 60 cm or less, the width dimension of each of the front side portion and the rear side portion is 20 cm or more and 30 cm or less, and the width dimension of the crotch portion is 10 cm or more and 15 cm or less. The inseam fit supporter described in . The crotch fitting supporter according to any one of claims 1 to 3, which is composed of a woven fabric, a knitted fabric, a nonwoven fabric, or a laminate thereof. 5. The hook tape according to any one of claims 1 to 4, wherein two hook tapes are arranged on each of the front side portion and the rear side portion, and the area of one hook tape is 16 cm ² or more. Inseam fit supporter. The crotch fitting supporter according to any one of claims 1 to 5, wherein the tension of the elastic member is such that the length dimension of the crotch fitting supporter main body shrinks by 30% or more in a natural state.