JP2023119849A - absorbent article - Google Patents

Abstract

To provide an absorbent article reducing oppression on the abdominal part of a wearer.SOLUTION: An absorbent article includes a cross direction, a width direction orthogonal to the cross direction, a back side area, a ventral area, a crotch area located between the back side area and the ventral area, and a connection tape detachably connecting the back side area and the ventral area. The connection tape includes a first connection part provided on one end side in a longitudinal direction of the connection tape, a second connection part provided on the other end side in the longitudinal direction, and an elastic part located between the first connection part and the second connection part in the longitudinal direction. The first connection part and the second connection part are provided on one surface of the connection tape, and are not superimposed on the elastic part in a plan view.SELECTED DRAWING: Figure 1

Description

The present invention relates to absorbent articles.

2. Description of the Related Art Conventionally, as an absorbent article, a connection type (tape type) disposable diaper is known in which both sides of a dorsal portion are connected to both sides of an abdominal portion when worn. Such interlockable disposable diapers can be used in hospitals for low birth weight infants treated in the NICU (Neonatal Intensive Care Unit) and GCU (Neonatal Recovery Unit).

For example, U.S. Pat. No. 5,931,001 discloses a first waist region, a second waist region, a crotch region extending intermediate the first and second waist regions, and a backsheet jointed to the backsheet. , an absorbent article is disclosed that includes an outer cover material, a pair of leg cuffs, and a fully removable fastening member that form part of the garment-facing surface of the absorbent article.

Japanese Patent Application Laid-Open No. 2021-6268

However, in the absorbent article described in Patent Document 1, when a low birth weight infant maintains a flexed posture (positioning) close to the internal environment, the fastening member tends to press the abdomen, increasing stress on the infant, Vital fluctuations may occur. In addition, abdominal distension is one of the symptoms seen in low birth weight infants, and especially when a low birth weight infant with a distended abdomen assumes a positioning posture, there is a possibility that the abdomen will become more compressed.

In view of the above points, an object of one aspect of the present invention is to provide an absorbent article that can reduce pressure on the wearer's abdomen.

A first form of the present invention includes a front-rear direction, a width direction orthogonal to the front-rear direction, a dorsal region, a ventral region, and a crotch region positioned between the dorsal region and the ventral region. and a connecting tape that detachably connects the dorsal region and the abdominal region, wherein the connecting tape is a first a connecting portion, a second connecting portion provided on the other end side in the longitudinal direction, and an elastic portion positioned between the first connecting portion and the second connecting portion in the longitudinal direction; The first connecting portion and the second connecting portion are provided on one surface of the connecting tape and do not overlap the expandable portion in plan view.

According to the first aspect, the stretchable portion is positioned between the first connecting portion and the second connecting portion in the longitudinal direction, and the first connecting portion and the second connecting portion are the stretchable portions in plan view. does not overlap with Therefore, the dorsal region and the ventral region are connected by a connecting tape, and when the connecting tape is pulled in the longitudinal direction, the elastic force of the elastic part is suppressed from being transmitted to the first connecting part and the second connecting part. can reduce the pressure on the wearer's abdomen.

In a second form of the present invention, the dorsal region, the ventral region, and the crotch region each include an absorbent body, and have a pair of side flaps extending outward from both side edges of the absorbent body, The connecting tape is detachably attached to each of the pair of side flaps in the dorsal region or the ventral region.

According to the second embodiment, the connecting tapes are provided on the side flaps extending outward from both side edges of the absorbent body. The distance between the edge and both side edges in the width direction of the ventral region is reduced, and the length of the connecting tape in the longitudinal direction can be relatively shortened. Therefore, the length of the stretchable portion of the connecting tape can be made relatively short, and pressure on the abdomen of the wearer can be further reduced. In addition, since the connecting tape is detachably attached to the side flaps, the position of the connecting tape can be adjusted according to the body shape of the wearer so that the abdomen is not easily tightened.

According to a third aspect of the present invention, the first connecting portion and the second connecting portion are provided over both edges of the connecting tape in a lateral direction orthogonal to the longitudinal direction.

According to the third embodiment, the dorsal region and the ventral region are connected by a connecting tape, and when the connecting tape is pulled in the longitudinal direction, the elastic force of the stretchable part is applied to a part of the dorsal region and the ventral region. concentration on the wearer's abdomen can be reduced.

In a fourth aspect of the present invention, the plan view area of the first connecting portion and the plan view area of the second connecting portion are each 17% to 25% of the plan view area of the connecting tape.

According to the fourth aspect, the connecting tape can be more firmly fixed to the dorsal region and the ventral region, and even if the connecting tape is repeatedly attached and detached for position adjustment etc., the connecting tape is not intended to be attached. Peeling off from the dorsal and ventral regions can be prevented.

In a fifth aspect of the present invention, the basis weight of the first connecting portion and the basis weight of the second connecting portion are each 100 g/m ² to 140 g/m ² .

According to the fifth aspect, flexibility can be imparted to the first connecting portion and the second connecting portion. When worn, the connecting tape fits the abdomen to further reduce pressure on the wearer's abdomen.

In a sixth aspect of the present invention, the length of the connecting tape in the transverse direction is 10 mm to 30 mm.

According to the sixth aspect, it is possible to reduce the contact area of the connecting tape against the abdomen while maintaining the strength of the connecting tape, thereby further reducing pressure on the wearer's abdomen.

In a seventh aspect of the present invention, the dorsal region includes a dorsal edge parallel to the longitudinal direction, the ventral region includes a ventral edge parallel to the longitudinal direction, and the dorsal region Of the edge and the ventral edge, the distance between the edge closer to the connecting tape and the connecting tape is the same as the dorsal edge and the ventral edge when the absorbent article is unfolded. It is 3% to 20% with respect to the distance from.

According to the seventh aspect, the connection tape can be positioned in the vertical direction of the abdomen of the wearer at a position where the abdomen is less likely to be tightened.

In an eighth form of the present invention, the length in the front-rear direction is 200 mm to 280 mm, and the length in the width direction at the center of the length in the front-rear direction is 100 mm to 200 mm.

According to the eighth mode, when worn by a low birth weight baby, it is possible to provide an appropriate amount of space between the abdomen and the absorbent article, thereby further reducing pressure on the abdomen.

In a ninth form of the present invention, the shape in plan view is symmetrical with respect to the bisector of the length in the front-rear direction and the bisector of the length in the width direction, and both side edges of the crotch region is curved so as to be convex toward the outside in the width direction or concave toward the inside in the width direction.

According to the ninth mode, it is not necessary to change the front-rear direction of the absorbent article according to the posture of the wearer when replacing the absorbent article, and the nurse can easily put the absorbent article on by the wearer. can be done. In addition, when worn, a gap of an appropriate size is formed between the leg circumference and the crotch area of the wearer to reduce the burden on the leg, and excrement can be prevented from leaking from the gap between the leg circumference and the crotch area. can be prevented.

ADVANTAGE OF THE INVENTION According to one form of this invention, the absorbent article which can reduce the pressure with respect to a wearer's abdomen can be provided.

1 is a plan development view of an absorbent article according to a first embodiment, viewed from the skin surface side. FIG. 1 is a plan development view of an absorbent article according to a first embodiment, viewed from a non-skin surface side; FIG. FIG. 2 is a diagram showing a section taken along line II of FIG. 1; FIG. 4 is a plan view of a connecting tape; FIG. 5 is a diagram showing a II-II cross section of FIG. 4; FIG. 4 is a plan development view of the absorbent article according to the second embodiment as seen from the skin surface side. FIG. 4 is a plan development view of the absorbent article according to the second embodiment, viewed from the non-skin surface side.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in each drawing, unless otherwise described, the same reference numerals may be attached to the same or corresponding configurations, and the description thereof may be omitted. In this specification, the front-rear direction of the absorbent article 1 is D1, and the width direction of the absorbent article 1 perpendicular to the front-rear direction is D2. In this specification, the front-rear direction D1 is also used as the front-rear direction of the absorbent body 4, and the width direction D2 is also used as the width direction of the absorbent body 4. As shown in FIG. In addition, the front-back direction corresponds to the front-back direction of the wearer. In this specification, the surface of the absorbent article 1 facing the wearer is referred to as the skin surface, and the surface of the absorbent article 1 opposite to the skin surface or the surface facing clothing is referred to as the non-skin surface. The longitudinal direction of the connecting tape 9 is D3, and the lateral direction of the connecting tape, which is orthogonal to the longitudinal direction, is D4. In this specification, distance means the shortest distance.

<First Embodiment>
FIG. 1 is a plan development view of the absorbent article according to the first embodiment viewed from the skin side, and FIG. 2 is a plan development view of the absorbent article according to the first embodiment viewed from the non-skin side. , and FIG. 3 is a diagram showing a section taken along the line II of FIG. 4 is a plan view of the connecting tape, and FIG. 5 is a cross-sectional view taken along line II-II of FIG.

As shown in FIGS. 1 and 2, the absorbent article 1 has a dorsal region B, a ventral region F, and a crotch region M located between the dorsal region B and the ventral region F. As shown in FIGS. In the present embodiment, the dorsal region B and the ventral region F are located along the bisector 30 of the length in the front-rear direction D1 and the bisector 20 of the length in the width direction D2, as will be described later. If symmetrical, the dorsal region B shown in FIGS. 1 and 2 can be used as the ventral region and the ventral region F as the dorsal region. Therefore, the dorsal area B and the ventral area F in the present embodiment are terms used for convenience in describing the embodiment. The same is also true for other terms using dorsal or ventral expressions.

The dorsal region B extends from the crotch region M to one side in the front-rear direction D1, and the ventral region F extends from the crotch region M to the other side in the front-rear direction D1. The dorsal region B is a region corresponding to the wearer's back when worn, the ventral region F is a region corresponding to the wearer's abdomen when worn, and the crotch region M is a region corresponding to the wearer's crotch when worn. This is the corresponding area. The absorbent article 1 has a dorsal edge E1 and a ventral edge E2 at both ends in the front-rear direction D1. Dorsal region B includes dorsal edge E1 and ventral region F includes ventral edge E2. The dorsal edge E<b>1 and the ventral edge E<b>2 are parallel to the longitudinal direction D<b>3 of the connecting tape 9 .

As shown in FIGS. 1 to 3, the absorbent article 1 includes a liquid-permeable topsheet 2, a liquid-impermeable backsheet 3, and an absorbent material provided between the topsheet 2 and the backsheet 3. A body 4 and a pair of side flaps SF extending outward from both side edges of the absorbent body 4 are provided. The absorber 4 is provided so as to be included in the back area B, the ventral area F, and the crotch area M. As shown in FIG. In this embodiment, an example in which the side flaps SF are provided is shown, but the configuration may be such that the side flaps SF are not provided. Moreover, the absorbent article 1 may be provided with an exterior sheet 6 on the non-skin surface side of the back sheet 3 . Further, the absorbent body 4 may be wrapped with a packaging sheet 5 made of crepe paper, non-woven fabric, or the like, for shape retention or the like.

The top sheet 2 is a liquid-permeable sheet that allows excretions such as urine to quickly pass therethrough. As the top sheet 2, a perforated or non-perforated nonwoven fabric, a porous plastic sheet, or the like is preferably used. Examples of non-woven fabrics include synthetic fibers such as olefin-based, polyester-based, and polyamide-based fibers such as polyethylene or polypropylene (including composite fibers such as core and sheath in addition to single-component fibers), as well as rayon and cupra. Regenerated fibers, natural fibers such as cotton, and the like can be selected without particular limitation, and these can also be mixed and used. In order to increase the softness of the nonwoven fabric, it is preferable to use crimped fibers as the constituent fibers. In addition, even if the constituent fibers of the nonwoven fabric are hydrophilic fibers (including hydrophilic fibers made hydrophilic by a hydrophilic agent), they may be hydrophobic fibers or water-repellent fibers (water-repellent fibers made water-repellent by a water-repellent agent). including aqueous fibers).

In addition, nonwoven fabrics are generally classified into short fiber nonwoven fabrics, long fiber nonwoven fabrics, spunbond nonwoven fabrics, meltblown nonwoven fabrics, spunlace nonwoven fabrics, thermal bonded (air-through) nonwoven fabrics, and needle punched nonwoven fabrics, depending on the fiber length, sheet forming method, fiber bonding method, and laminate structure. Nonwoven fabrics, point-bonded nonwovens, laminated nonwovens (SSS (spunbond + spunbond + spunbond) nonwovens in which the same or similar nonwoven layers are laminated, as well as different nonwoven layers laminated with a meltblown layer between the spunbond layers. It is classified into sandwiched SMS (spunbond+meltblown+spunbond) nonwoven fabric, SMMS (spunbond+meltblown+meltblown+spunbond) nonwoven fabric, etc.), and any of these nonwoven fabrics can be used. It is preferable that the laminated nonwoven fabric is manufactured as an integrated nonwoven fabric containing all layers, and fiber bonding is applied to all layers. As a result, it is possible to improve the touch feeling, so that it is possible to prevent the skin from being irritated when it comes into contact with the wearer's skin. Note that the laminated nonwoven fabric may be obtained by laminating a plurality of separately manufactured nonwoven fabrics together using a joining means such as a hot-melt adhesive.

The top sheet 2 extends from one end to the other end in the front-rear direction D1 of the absorbent article 1 and extends laterally from the absorbent core 4 in the width direction D2. As another embodiment, the length of the top sheet 2 in the width direction D2 may be adjusted as necessary, for example, when the starting point of the rising gathers 7 described later is positioned closer to the center in the width direction D2 than the side edge of the absorbent body 4. is shorter than the length of the absorbent body 4 in the width direction D2.

The back sheet 3 is a liquid-impermeable sheet that does not allow excrement to pass through. As the back sheet 3, for example, a microporous sheet obtained by kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene, molding the sheet, and then stretching the sheet in a uniaxial or biaxial direction is suitable. can be used for Further, as the back sheet 3, a non-woven fabric base material having improved waterproofness may be used.

It is desirable that the backsheet 3 is the same as the absorbent body 4 or extends over a wider range than the absorbent body 4 in the front-rear direction D1 and the width direction D2. If necessary, such as when other water blocking means is present, the structure may be such that the end portions of the absorbent body 4 are not covered in the front-rear direction D1 and the width direction D2.

The absorbent body 4 is a part that absorbs and retains the excreted fluid, and can be formed by an assembly of fibers. The filament assembly may be a filament assembly obtained by laminating short fibers such as cotton pulp or synthetic fibers, or by opening tows (fiber bundles) of synthetic fibers such as cellulose acetate as necessary. can also be used. The fiber basis weight can be, for example, about 100 to 300 g/m ² when piling up cotton pulp or short fibers, and for example, about 30 to 120 g/m ² for filament aggregates. can be done. The fineness of synthetic fibers is, for example, preferably 1 to 16 dtex, more preferably 1 to 10 dtex, even more preferably 1 to 5 dtex. The absorbent body 4 can contain superabsorbent polymer particles in part or in its entirety. Superabsorbent polymer particles include "powder" in addition to "particles". As the superabsorbent polymer particles, those used in this type of absorbent article can be used as they are. As a material for the superabsorbent polymer particles, for example, starch-based, cellulose-based, or synthetic polymer-based materials can be used. Moreover, the planar view shape of the absorber 4 may be a shape in which the center part of the front-back direction D1 is constricted. In other words, the length of the absorbent body 4 in the width direction D2 may gradually decrease toward the center in the front-rear direction D1.

The outer sheet 6 covers the entire non-skin surface side of the back sheet 3 and gives the outer surface of the absorbent article 1 a cloth-like appearance. The exterior sheet 6 preferably has a fiber basis weight of 10 to 50 g/m ² , more preferably 15 to 30 g/m ² .

The side flaps SF may be formed, for example, by extending the exterior sheets 6 outward from both side edges of the absorber 4, or may be formed by other members. As the side flaps SF, the same nonwoven fabric as the top sheet 2 can be used.

The absorbent article 1 may have a pair of wings W projecting outward in the width direction D2 in each of the dorsal region B and the ventral region F. The wing W can be formed, for example, by cutting a side portion of the side flap SF into a concave shape. In other words, the wings W are part of the side flaps SF. In the example shown in FIGS. 1 to 3, the wing W is formed by laminating a gather sheet 71 and an exterior sheet 6 having edges of the same shape. Moreover, the wing W may be formed as a separate member from the side flap SF. Even if the wing W is a separate member from the side flaps SF, the wing W is treated as part of the side flaps SF.

The absorbent article 1 may include end flaps EF extending in the front-back direction D<b>1 of the absorbent body 4 . The end flaps EF may be formed, for example, by extending the exterior sheets 6 in the front-rear direction D1 of the absorbent body 4, or may be formed by other members. As the end flaps EF, the same nonwoven fabric as the top sheet can be used.

The absorbent article 1 preferably has riser gathers 7 that rise toward the wearer's skin on both sides in the width direction D2. The rising gathers 7 prevent excrement from moving laterally along the top sheet 2 and prevent lateral leakage. Although the examples shown in FIGS. 1 to 3 have the rising gathers 7, the configuration may be such that the rising gathers 7 are not provided.

The riser gathers 7 are formed by fixing to each side flap SF a first leg-surrounding elastic member 73 made of an elongated elastic member such as rubber thread in a state of being stretched in the front-rear direction D1. In other words, the portion around the leg of each side flap SF is configured as the rising gathers 7 . As shown in FIG. 3 , the first leg elastic member 73 is provided between the gathered sheet 71 and the back sheet 3 on the outer side in the width direction D2 near the joining start end of the joint portion of the gathered sheet 71, and also on the side. It can also be provided between the back sheet 3 and the exterior sheet 6 in the flap SF. Only one first leg elastic member 73 may be provided on each side, or a plurality of first leg elastic members 73 may be provided on each side.

The riser gathers 7 include a gather sheet 71 and an elongated gather elastic member 72 fixed to the gather sheet 71 in a stretched state along the front-rear direction D1. A water-repellent non-woven fabric can be used as the gather sheet 71 , and a thread rubber or the like can be used as the gather elastic member 72 . As shown in FIGS. 1 and 3, one gathering elastic member 72 may be provided on each side, or a plurality of gathering elastic members 72 may be provided on each side.

The gathered sheet 71 is folded inward in the width direction D2 and has a joining start end joined to the side portion of the top sheet 2 . The gather sheet 71 is joined to the side portion of the back sheet 3 and the side portion of the exterior sheet 6 located outside in the width direction D2 with a hot-melt adhesive or the like at the portion outside in the width direction D2 from the joining start end. .

Around the legs, the central side in the width direction from the joint start end of the rising gathers 7 is fixed on the top sheet 2 at both ends in the front-rear direction D1, but the portion in between is a non-fixed free portion. The part rises due to the contractile force of the gather elastic member 72 and comes to adhere to the body surface.

In a plan view, the absorbent article 1 has second leg elastic members made of elongated elastic members such as thread rubber, which are arranged on the inner side of the first leg elastic members 73 in the width direction D2 and on the outer side of the absorbent body 4 in the width direction D2. It may have a member 11 . The second leg elastic members 11 can be provided, for example, between the packaging sheet 5 and the back sheet 3 as shown in FIG. The second leg elastic members 11 allow the absorbent article 1 to fit better around the wearer's legs. Only one second leg elastic member 11 may be provided on each side, or a plurality of second leg elastic members 11 may be provided on each side. It is preferable that two second leg elastic members 11 are provided on each side. By providing two second leg-surrounding elastic members 11 on each side, the absorbent article 1 swells more on the skin surface side, and the wearer's leg circumferences can be further fitted. Therefore, it is possible to prevent leakage (side leakage) of excrement from the gap between the leg area and the absorbent article 1 .

The absorbent article 1 has a connecting tape 9 that detachably connects the dorsal region B and the ventral region F. As shown in FIG. As shown in FIGS. 4 and 5, the connecting tape 9 has a first connecting portion 91 provided at one end in the longitudinal direction D3 (stretching direction) of the connecting tape 9, and is provided at the other end in the longitudinal direction D3. and a stretchable portion 93 positioned between the first connecting portion 91 and the second connecting portion 92 in the longitudinal direction D3. The first connecting portion 91 and the second connecting portion 92 are provided on one surface of the connecting tape 9 (the surface facing the non-skin surface of the absorbent article 1) and do not overlap the stretchable portion 93 in plan view. The first connecting portion 91 and the second connecting portion 92 may be in contact with or separated from the elastic portion 93 in the longitudinal direction D3 in plan view. Specifically, the inner ends of the first connecting portion 91 and the second connecting portion 92 in the longitudinal direction D3 may be in contact with both ends of the elastic portion 93 in the longitudinal direction D3 in a plan view, or may be separated from each other. may be With this configuration, the dorsal region B and the ventral region F are connected by the connecting tape 9, and when the connecting tape 9 is pulled in the longitudinal direction D3, the elastic force of the elastic part 93 is applied to the first connecting part 91 and the second connecting part 91. Transmission to the connecting portion 92 can be suppressed, and pressure on the abdomen of the wearer can be reduced.

The connecting tape 9 may be provided on both sides of the dorsal region B in the width direction D2. Specifically, the connecting tape 9 may be detachably provided on each of the pair of side flaps SF in the dorsal region B. As shown in FIG. More specifically, the connecting tape 9 may be detachably attached to each of the pair of wings W in the dorsal region B. As shown in FIG. As another embodiment, the connecting tape 9 may be provided at both ends of the ventral region F in the width direction D2. Specifically, the connecting tape 9 may be detachably attached to each of the pair of side flaps SF in the ventral region F. More specifically, the connecting tape 9 may be detachably attached to each of the pair of wings W in the ventral region F. According to the above configuration, since the connecting tapes 9 are provided on the side flaps SF extending outward from both side edges of the absorbent body 4, when the dorsal region B and the ventral region F are connected, the dorsal region The distance between the side edges in the width direction D2 of B and the side edges in the width direction D2 of the ventral region F is reduced, and the length of the connecting tape 9 in the longitudinal direction D3 can be relatively shortened. Therefore, the length of the stretchable portion 93 of the connecting tape 9 can be relatively shortened, and the pressure on the abdomen of the wearer can be further reduced. In addition, since the connecting tape 9 is detachably attached to the side flaps SF, the position of the connecting tape 9 can be adjusted according to the body shape of the wearer so that the abdomen is not easily tightened. Furthermore, the position of the connecting tape 9 in the state in which the absorbent article 1 is unfolded is changed from the dorsal region B to the ventral region F or from the ventral region F to the dorsal region according to the posture of the wearer at the time of exchanging the absorbent article. It can be changed to the side area B.

The first connecting portion 91 may be connected to the dorsal region B, more specifically, the surface of the side flap SF in the dorsal region B on the non-skin surface side. In this case, the second connecting portion 92 is connected to the ventral region F, more specifically, the non-skin side surface of the side flap SF in the ventral region F when worn. As another embodiment, the first connecting portion 91 may be connected to the ventral region F, more specifically, to the non-skin surface side of the side flap SF in the ventral region F. In this case, the second connecting portion 92 is connected to the back region B, specifically, the surface of the side flap SF in the back region B on the non-skin surface side when worn.

It is preferable that the first connecting portion 91 and the second connecting portion 92 can be easily connected at the connecting portion of the first connecting portion 91 and the second connecting portion 92 . For example, when the first connecting portion 91 and the second connecting portion 92 are hook members (male members) of mechanical fasteners (hook-and-loop fasteners), the connection points on the non-skin surface of the abdomen region F are loop members (female members) of the mechanical fastener. ) or non-woven fabric. As a loop material, there is also known a material in which a loop thread is sewn on a plastic film. ^2. A spunbond nonwoven fabric having a thickness of about 0.3 to 0.5 mm, etc.) is preferably provided with welded portions in which fibers are intermittently welded at least in the width direction D2 from the viewpoint of air permeability and flexibility. As in the example shown in FIGS. 1 and 2 , when the connecting portion on the non-skin surface of the abdomen region F is formed by the outer sheet 6 , the hook material of the connecting tape 9 is attached to the outer sheet 6 without adding anything. can be concatenated. If necessary, the loop material may be attached only to the connection points on the non-skin surface of the abdomen region F. In addition, when the first connecting portion 91 and the second connecting portion 92 are adhesive layers, a plastic film with a smooth surface that is rich in adhesiveness is attached to the connecting points on the non-skin surface of the abdomen region F. good too.

Of the dorsal edge E1 and the ventral edge E2, the edge closer to the connecting tape 9 (the dorsal edge E1 in the example shown in FIGS. 1 and 2) and the connecting tape 9 are the distance L2. , preferably 3% to 20%, more preferably 5% to 15%, of the distance L8 between the dorsal edge E1 and the ventral edge E2 in the unfolded state of the absorbent article 1; More preferably 5% to 10%. Of the dorsal edge E1 and the ventral edge E2, the distance L2 between the edge closer to the connecting tape 9 and the connecting tape 9 is the distance between the dorsal edge E1 and the ventral side when the absorbent article 1 is unfolded. By setting the distance from the edge E2 to 3% to 20%, the connecting tape 9 can be positioned in the vertical direction of the abdomen of the wearer at a position where the abdomen is less likely to be tightened.

The absorbent article 1 may have, as shown in FIG. The mark 13 can be provided, for example, at an arbitrary position along both edges of the connecting tape 9 in the transverse direction D4. The number of markers 13 is not particularly limited. You can have more than one. The label 13 may be provided symmetrically with respect to the bisector 30 of the length of the absorbent article 1 in the front-rear direction D1. In the example shown in FIG. 2, the shape of the marker 13 is the shape of a chick, but it is not limited to this, and can be any shape such as other animals, plants, circles, triangles, and the like. The absorbent article 1 has the markings 13 so that when a caregiver removes the connecting tape 9 from the absorbent article 1 and attaches it to the absorbent article 1 again, the connecting tape 9 is aligned with the markings 13 and placed in an appropriate position. can be easily attached to Therefore, pressure on the abdomen of the wearer can be easily relieved.

The distance L1 between the connecting tape 9 on one side in the width direction D2 and the connecting tape 9 on the other side is preferably 90 mm to 150 mm, more preferably 100 mm to 120 mm. When the distance L1 between the connecting tape 9 on one side in the width direction D2 and the connecting tape 9 on the other side is 90 mm to 150 mm, pressure on the abdomen of the wearer can be further reduced.

Although the connecting tape 9 is not folded in the example shown in FIGS. 1 and 2, it may be folded at a crease along the lateral direction D4, for example.

The length of the connecting tape 9 in the longitudinal direction D3 is preferably 50 mm to 80 mm, more preferably 65 mm to 75 mm, even more preferably 70 mm to 75 mm. The length of the connecting tape 9 in the transverse direction D4 is preferably 10 mm to 30 mm, more preferably 20 mm to 25 mm. Since the length of the connecting tape 9 in the lateral direction D4 is 10 mm to 30 mm, it is possible to reduce the area where the connecting tape 9 contacts the abdomen while maintaining the strength of the connecting tape 9. The pressure can be further reduced. When the connecting tape 9 is folded, the "length" here means the length in the unfolded state. In this embodiment, the length of the connecting tape 9 in the longitudinal direction D3 is longer than the length of the transverse direction D4, but the length of the transverse direction D4 is longer than the length of the longitudinal direction D3. may

The connecting tape 9 may have, at one end in the longitudinal direction D3, a first free end 94 that is not provided with the first connecting portion 91 and that is made of the tape base material 90 described later. The connecting tape 9 may have a second free end 95 made of the tape base material 90 and not provided with the second connecting portion 92 at the other end in the longitudinal direction D3. A length L6 of the first free end 94 and the second free end 95 in the longitudinal direction D3 of the connecting tape 9 can be, for example, 1 mm to 6 mm. By providing the first free end 94 and the second free end 95, when the connecting tape 9 is attached to or detached from the dorsal region B or the ventral region F, the first connecting portion 91 and the second connecting portion 92 can be held by hand ( Since the first free end 94 or the second free end 95 can be grasped and detached without being touched by fingers, the attachment and detachment operations are facilitated.

As shown in FIG. 5 , the connecting tape 9 has a tape base 90 and a first connecting portion 91 and a second connecting portion 92 on one surface of the tape base 90 . The first connecting portion 91 and the second connecting portion 92 may be fixed to the tape substrate 90 via an adhesive.

It is preferable that the first connecting portion 91 and the second connecting portion 92 are provided over both edges of the connecting tape 9 in the transverse direction D4. With this configuration, the dorsal region B and the ventral region F are connected by the connecting tape 9, and when the connecting tape 9 is pulled in the longitudinal direction D3, the stretchable part 93 is formed in a part of the dorsal region B and the ventral region F. concentration of elastic force can be suppressed, and pressure on the abdomen of the wearer can be further reduced.

The plan view area of the first connecting portion 91 and the plan view area of the second connecting portion 92 are preferably 17% to 25%, and preferably 20% to 25%, of the plan view area of the connecting tape 9. is more preferable. The planar view area of the first connecting portion 91 and the planar view area of the second connecting portion 92 are respectively 17% to 25% of the planar view area of the connecting tape 9, so that the dorsal region B and the ventral region The connecting tape 9 can be more firmly fixed to F, and even if the connecting tape 9 is repeatedly attached and detached for position adjustment, etc., the connecting tape 9 is not unintentionally peeled off from the dorsal region B and the ventral region F. can be prevented.

A distance L7 in the longitudinal direction D3 between the first connecting portion 91 and the second connecting portion 92 is preferably 20 mm to 58 mm, more preferably 30 mm to 53 mm, even more preferably 30 mm to 40 mm. Since the distance L7 in the longitudinal direction D3 between the first connecting portion 91 and the second connecting portion 92 is 20 mm to 58 mm, the distance between the first connecting portion 91 and the second connecting portion 92 in the longitudinal direction D3 is A stretchable portion 93 having a sufficient length in the longitudinal direction D3 can be arranged.

Although the first connecting portion 91 and the second connecting portion 92 are not particularly limited, for example, a hook material (male material) of a mechanical fastener (surface fastener) is provided, and an adhesive layer or the like can be used. The hook material has a large number of engaging projections on its connection surface, and the shape of the engaging projections may be L-shaped, J-shaped, mushroom-shaped, T-shaped, double J-shaped (J-shaped). Any shape known in the art can be adopted, such as a shape in which the two are joined back-to-back.

The basis weight of the first connecting portion 91 and the second connecting portion 92 is preferably 100 g/m ² to 140 g/m ² , more preferably 110 g/m ² to 130 g/m ² , and 115 g/m ² to 125 g/m ² . More preferred. By setting the basis weight of the first connecting portion 91 and the second connecting portion 92 to be 100 g/m ² to 180 g/m ² , pressure on the wearer's abdomen can be further reduced.

A length L4 of each of the first connecting portion 91 and the second connecting portion 92 in the longitudinal direction D3 of the connecting tape 9 is preferably 30 mm to 40 mm, more preferably 33 mm to 38 mm. The length L4 of each of the first connecting portion 91 and the second connecting portion 92 in the longitudinal direction D3 of the connecting tape 9 is 30 mm to 40 mm. The pressure on the abdomen can be reduced while fitting the absorbent article 1 appropriately to the wearer's body.

As shown in FIG. 5, the tape base material 90 consists of two base sheets 96, an elastic portion 93 sandwiched between the two base sheets 96, and the two base sheets 96. An adhesive layer 97 disposed between each and elastic portion 93 may be included.

The base material sheet 96 is not particularly limited, but non-woven fabric, plastic film, poly-laminated non-woven fabric, paper, and composite materials thereof can be used, for example. A specific example of the base sheet 96 is a laminated nonwoven fabric obtained by laminating a spunbond nonwoven fabric and a pointbond nonwoven fabric. Since the base material sheet 96 is a laminated nonwoven fabric obtained by laminating a spunbonded nonwoven fabric and a point-bonded nonwoven fabric, the flexibility of the connecting tape 9 can be increased, and pressure on the abdomen of the wearer can be further reduced. can. In addition, since the texture can be improved, it is possible to prevent the skin from being irritated when it comes into contact with the wearer's skin.

The basis weight of the base sheet 96 is preferably 5 g/m ² to 30 g/m ² , more preferably 18 g/m ² to 25 g/m ² , even more preferably 18 g/m ² to 22 g/m ² . By setting the basis weight of the base sheet 96 to 5 g/m ² to 30 g/m ² , pressure on the abdomen of the wearer can be further reduced. For example, when the base material sheet 96 is a laminated nonwoven fabric obtained by laminating a spunbond nonwoven fabric and a point-bond nonwoven fabric, the basis weight of the spunbond nonwoven fabric should be 18 g/m ² and the basis weight of the point-bond nonwoven fabric should be 22 g/m ² . can be done.

Examples of the stretchable portion 93 include, but are not limited to, elastic nonwoven fabric, elastic film, elastic strand, elastic urethane, and the like. The basis weight of the stretchable portion 93 is preferably 20 g/m ² to 80 g/m ² , more preferably 30 g/m ² to 50 g/m ² . By setting the fabric weight of the stretchable portion 93 to 20 g/m ² to 80 g/m ² , it is possible to further reduce pressure on the abdomen of the wearer.

The length L5 of the stretchable portion 93 in the longitudinal direction D3 of the connecting tape 9 is preferably 18 mm to 56 mm, more preferably 28 mm to 51 mm, even more preferably 25 mm to 35 mm. The length L5 of the stretchable part 93 in the longitudinal direction D3 of the connecting tape 9 is 18 mm to 56 mm. The pressure on the abdomen can be reduced while fitting the body appropriately.

A material forming the adhesive layer 97 is not particularly limited, but an example thereof includes a hot-melt adhesive. The basis weight of the adhesive layer 97 is preferably 1 g/m ² to 20 g/m ² , more preferably 4 g/m ² to 10 g/m ² , even more preferably 4 g/m ² to 7 g/m ² . By setting the basis weight of the adhesive layer 97 to be 1 g/m ² to 20 g/m ² , the flexibility of the connecting tape 9 can be enhanced, and pressure on the abdomen of the wearer can be further reduced.

The absorbent article 1 as a whole has an elongated shape (elongated shape) having a predetermined length in the front-rear direction D1 and a predetermined width in the width direction D2 orthogonal to the front-rear direction. The planar shape of the absorbent article 1 is preferably symmetrical with respect to the bisector 30 of the length of the absorbent article 1 in the front-rear direction D1 and the bisector 20 of the length in the width direction D2. This eliminates the need to change the front-rear direction of the absorbent article 1 according to the posture of the wearer when replacing the absorbent article 1, and allows the nurse to easily put the absorbent article 1 on the wearer. Note that the symmetry used here does not mean a symmetrical shape in a strict sense, but also includes a substantially symmetrical shape. In addition, in the absorbent article 1, the back region B and the back region F have similar outer shapes, that is, the region area on one side of the back region B and the back region F is formed slightly wider in the developed plan view of FIG. may In this case, for example, depending on the body shape of the wearer or the difference in excretion positions between boys and girls, the area formed with a slightly larger area can be selectively used so as to be on the back side or the abdomen side.

Further, in the plan view shape of the absorbent article 1, it is preferable that both side edges 12, 12 in the crotch region M are curved so as to be convex outward in the width direction D2 or concave inward in the width direction D2. . The example shown in FIGS. 1 and 2 is an example curved so as to be convex outward in the width direction D2. As a result, a gap of an appropriate size is formed between the leg circumference of the wearer and the crotch region M when worn, thereby reducing the burden on the leg and excretions from the gap between the leg circumference and the crotch region M. can be prevented from leaking. In particular, low birth weight infants tend to have a relatively large gap between the leg circumference and the crotch region in a normal absorbent article, but according to the absorbent article 1 of the present embodiment, the low birth weight baby When worn by a child, the aforementioned effects can be exhibited more.

The length of the absorbent article 1 in the front-rear direction D1 is preferably 200 mm to 280 mm, more preferably 220 mm to 270 mm. The length in the width direction D2 of the absorbent article 1 at the center of the length in the front-rear direction D1 is preferably 100 mm to 200 mm, more preferably 160 mm to 180 mm. The term "length" as used herein means the length of the absorbent article 1 when it is deployed and stretched to the maximum. The length of the absorbent article 1 in the front-rear direction D1 is 200 mm to 280 mm, and the length in the width direction D2 of the absorbent article 1 at the center of the length in the front-rear direction D1 is 100 mm to 200 mm. When worn by a low-birth-weight baby, it is possible to provide an appropriate amount of space between the abdomen and the absorbent article 1, thereby further reducing pressure on the abdomen.

The length of the dorsal edge E1 is preferably 100 mm to 200 mm, more preferably 160 mm to 180 mm. The length of the ventral edge E2 can be in the same range as the dorsal edge E1.

The length L3 in the width direction D2 of the area where the top sheet 2 is exposed in plan view is preferably 40 mm to 50 mm, more preferably 43 mm to 46 mm.

<Second embodiment>
FIG. 6 is a plan development view of the absorbent article according to the second embodiment as seen from the skin surface side, and FIG. 7 is a plan development view of the absorbent article according to the second embodiment as seen from the non-skin surface side. .

The absorbent article 100 according to the second embodiment differs from the absorbent article 1 according to the first embodiment in that the shape of the absorbent article in plan view is different and in that it has the third leg-surrounding elastic members 14. Other configurations are It is the same as the absorbent article 1 according to the first embodiment. In the plan view shape of the absorbent article 100 according to the second embodiment, both side edges 12, 12 in the crotch region M are curved so as to be concave inward in the width direction D2.

The length of the absorbent article 100 in the front-rear direction D1 is preferably 200 mm to 280 mm, more preferably 220 mm to 270 mm. The length in the width direction D2 of the absorbent article 1 at the center of the length in the front-rear direction D1 is preferably 100 mm to 200 mm, more preferably 160 mm to 180 mm. The term "length" as used herein means the length of the absorbent article 1 when it is deployed and stretched to the maximum. The length of the absorbent article 1 in the front-rear direction D1 is 200 mm to 280 mm, and the length in the width direction D2 of the absorbent article 1 at the center of the length in the front-rear direction D1 is 100 mm to 200 mm. When worn by a low-birth-weight baby, it is possible to provide an appropriate amount of space between the abdomen and the absorbent article 1, thereby further reducing pressure on the abdomen.

The length of the dorsal edge E1 is preferably 100 mm to 200 mm, more preferably 160 mm to 180 mm. The length of the ventral edge E2 can be in the same range as the dorsal edge E1.

The length L3 in the width direction D2 of the area where the top sheet 2 is exposed in plan view is preferably 40 mm to 50 mm, more preferably 43 mm to 46 mm.

In the absorbent article 100, in a plan view, second leg elastic members 11 and third leg elastic members 14 each made of an elongated elastic member such as thread rubber are positioned inside the first leg elastic members 73 in the width direction D2. may have The second leg elastic members 11 can be provided, for example, between the top sheet 2 and the back sheet 3 , and the third leg elastic members 14 can be provided between the packaging sheet 5 and the back sheet 3 . By having the third leg elastic members 14 in addition to the second leg elastic members 11, the absorbent article 1 rises on the skin surface side, and the absorbent article 1 can be further fitted around the wearer's legs. . Therefore, excrement can be prevented from leaking through the gap between the leg area and the absorbent article 1 .

With the above configuration, the absorbent article 100 according to the second embodiment can also achieve the same effects as the absorbent article 1 according to the first embodiment.

As described above, the embodiment has been described, but the above embodiment is presented as an example, and the present invention is not limited by the above embodiment. The above embodiments can be implemented in various other forms, and various combinations, omissions, replacements, changes, etc. can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and equivalents thereof.

1, 100 Absorbent article 2 Top sheet 3 Back sheet 4 Absorbent body 5 Wrapping sheet 6 Exterior sheet 7 Rising gather 71 Gather sheet 72 Gather elastic member 73 First leg-surrounding elastic member 9 Connecting tape 90 Tape substrate 91 First connecting portion 92 Second connecting portion 93 Elastic portion 94 First free end 95 Second free end 96 Base sheet 97 Adhesive layer 11 Second leg elastic member 12 Side edge 13 Label 14 Third leg elastic member 20 Absorbent article Bisecting line 30 of the length in the width direction Bisecting line SF of the length in the front-back direction of the absorbent article Side flaps EF End flaps W Wing B Back region M Inseam region F Abdomen region D1 Front-back direction D2 of the absorbent article Width direction D3 of absorbent article Longitudinal direction D4 of connecting tape Width direction of connecting tape

Claims (9)

a front-rear direction, a width direction perpendicular to the front-rear direction, a dorsal region, a ventral region, a crotch region located between the dorsal region and the ventral region, the dorsal region and the belly An absorbent article having a connecting tape that detachably connects the side region,
The connecting tape includes a first connecting portion provided on one longitudinal end side of the connecting tape and a second connecting portion provided on the other longitudinal end side of the connecting tape, and the first connecting portion in the longitudinal direction. and a stretchable portion located between the portion and the second connecting portion,
The absorbent article, wherein the first connecting portion and the second connecting portion are provided on one surface of the connecting tape and do not overlap the stretchable portion in plan view. The dorsal region, the ventral region, and the crotch region each include an absorbent body,
Having a pair of side flaps extending outward from both side edges of the absorbent body,
2. The absorbent article according to claim 1, wherein the connecting tape is detachably attached to each of the pair of side flaps in the dorsal region or the ventral region. 3 . The absorbent article according to claim 1 , wherein the first connecting portion and the second connecting portion are provided over both edges of the connecting tape in a lateral direction orthogonal to the longitudinal direction. 4. The plan view area of the first connecting portion and the plan view area of the second connecting portion are each 17% to 25% with respect to the plan view area of the connecting tape, any one of claims 1 to 3. Absorbent article according to. The absorbent article according to any one of claims 1 to 4, wherein the weight of the first connecting portion and the weight of the second connecting portion are each 100 g/m ² to 140 g/m ² . 4. The absorbent article according to claim 3, wherein the connecting tape has a length in the lateral direction of 10 mm to 30 mm. the dorsal region includes a dorsal edge parallel to the longitudinal direction;
the ventral region includes a ventral edge parallel to the longitudinal direction;
Of the dorsal edge and the ventral edge, the distance between the edge closer to the connecting tape and the connecting tape is the dorsal edge and the ventral edge in the unfolded state of the absorbent article. 7. The absorbent article according to any one of claims 1 to 6, which is 3% to 20% with respect to the distance to the side edges. The length in the front-rear direction is 200 mm to 280 mm, and the length in the width direction at the center of the length in the front-rear direction is 100 mm to 200 mm. absorbent article. The plan view shape is symmetrical with respect to the bisector of the length in the front-rear direction and the bisector of the length in the width direction,
The absorbent article according to any one of claims 1 to 8, wherein both side edges of the crotch region are curved so as to be convex outward in the width direction or concave inward in the width direction. .

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