JP2015104491A - Absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an absorbent article whose worn state is arbitrary chosen between a worn state "without wings" and a worn state "with wings" and which is easily worn and reliably prevents lateral leakage.SOLUTION: In a sanitary napkin 1, three-dimensional gathers BS raised on a skin side are respectively formed on both side parts on a skin contact surface side of a body part in which an absorber 4 is interposed between a liquid permeable surface sheet 3 and a back surface sheet 2, and wing-shaped flaps W which extend outward and have a wing slippage preventing adhesive layer 10 on a surface on the side of the back surface sheet 2 are respectively formed on both side parts of the body part. A peeling function sheet 11 in which peeling processing is performed on an exposed surface side is joined to an outer surface side of the three-dimensional gather BS. In addition, the wing-shaped flap W is bent to the side of the liquid permeable surface sheet 3 and is provided in a state where the wing slippage preventing adhesive layer 10 is made to adhere to the peeling function sheet 11 to be peeled.

Description

  The present invention mainly relates to absorbent articles used for sanitary napkins, vaginal sheets, incontinence pads, medical pads, toiletries, etc., in a “wingless” state that is not fixed by a winged flap, The present invention relates to an absorbent article that can be arbitrarily selected from a “winged” state in which a crotch portion of an underwear is fixed by expanding a flap.

  Conventionally, as an absorbent article N such as a sanitary napkin, a panty liner, a cage sheet, an incontinence pad, and the like, as shown in FIGS. 2. Description of the Related Art There is known a structure in which an absorbent body 52 made of cotton pulp or the like is interposed between a back sheet 50 and a liquid permeable top sheet 51 made of a nonwoven fabric or a permeable plastic sheet.

  As this type of absorbent article N, in order to prevent misalignment in the mounted state, for example, one or a plurality of adhesive layers 53, 53 are formed on the non-skin contact surface side (outer surface), and the napkin body The wing-shaped flaps W, W extending outward are integrally formed on both sides in the longitudinal direction of the wing, and the wing-shaped flaps W, W are adhered to a surface (outer surface) on the liquid-impervious back sheet 50 side. There is one in which the agent layers 54 are provided.

  When fixing the absorbent article N to the undergarment 30, as shown in FIG. 11, the absorbent article N is locally applied, and the wing-shaped flaps W, W protruding sideways are taken out from the undergarment. The wing-shaped flaps W, W are folded at the folding lines RL, RL, and are adhered to the outer surface of the crotch portion of the underwear 30 while winding the crotch portion of the underwear.

  By fixing the wing-shaped flap W to the underwear, the absorbent article N is firmly fixed to the underwear, so many people use this wing-shaped flap W. Some people prefer a small number that does not have a wing-shaped flap W, for example, because it protrudes outside and looks bad. Further, the wing-shaped flap W may be fixed to the underwear or unnecessary depending on the type of the underwear, the degree of blood discharge, the mood of the day, and the like.

  As an absorbent article capable of selecting the presence or absence of such a wing-shaped flap W, in Patent Document 1 below, a liquid permeable upper layer, a liquid impermeable lower layer, an absorbent main body between the upper layer and the lower layer, An impermeable top film overlying the lower layer, and a laterally extendable wing that can be folded and accommodated between the lower layer and the top film, the wing being the impermeable lower layer A sanitary napkin is disclosed which is covered by the top film in a rest position folded to the side.

  Moreover, in the following patent document 2, it has an absorptive main body which has a constriction part on both sides, and a pair of expandable / contractible flaps joined to this absorptive main body, The said flap is the said absorptive main body side in a contracted state. An absorptive article having an expansion / contraction portion where a curved ridge is formed is provided outside the constricted portion, and a slip prevention material is provided outside the heel.

JP 2000-83997 A JP 2006-296841 A

  However, in the sanitary napkin described in Patent Document 1, when used as “without wings”, the wing is in a resting state in which the wing is folded to the liquid-impervious lower layer side, and the wing itself prevents any body fluid from leaking. It didn't work. In addition, a protective sheet for protecting the adhesive for fixing the wing to the underwear is provided on the liquid-impervious lower layer. It didn't work at all. Furthermore, when used as a “winged”, in order to unfold the wing in the resting position, it is removed from the adhesive band provided on the top film, and at the same time, the adhesion area of the wing is removed from the protective sheet. There was a hassle during installation.

  On the other hand, in the absorbent article described in Patent Document 2, when used as “without wings”, the heel with the flap in a contracted state is functioning as a leak-proof wall. Could not be prevented.

  Accordingly, a main problem of the present invention is to provide an absorbent article that is easy to wear and reliably prevents side leakage in an absorbent article in which the wearing state of “without wings” and “with wings” can be arbitrarily selected. There is.

In order to solve the above-mentioned problems, as the present invention according to claim 1, the skin side is respectively provided on both sides of the skin contact surface side of the main body portion in which the absorbent body is interposed between the liquid-permeable top sheet and the back sheet. In the absorbent article in which a three-dimensional gather standing upright is formed, and a wing-like flap having an adhesive layer on the surface on the back sheet side is formed on both sides of the main body portion and outward. ,
A peeling functional sheet that peels the exposed surface side is joined to the outer surface side of the three-dimensional gather,
Provided is an absorbent article in which the wing-shaped flap is provided in a state in which the pressure-sensitive adhesive layer is detachably attached to the release functional sheet while being folded back to the liquid-permeable surface sheet side. Is done.

  In the invention according to claim 1, in the absorbent article in which the three-dimensional gathers standing on the skin side and the wing-shaped flaps extending outward are formed on both side portions of the main body portion on the skin contact surface side, respectively. The peeling functional sheet which peeled the exposed surface side is joined to the outer surface side of the said three-dimensional gather. The wing-shaped flap is provided in a state where the adhesive layer formed on the back sheet side is detachably attached to the release function sheet of the three-dimensional gather while being folded back to the liquid-permeable top sheet side. . By wearing in this state, it can be used as a “wingless” state in which the wing-shaped flap is not fixed to the underwear. In addition, if necessary, the wing-shaped flap is peeled off from the release function sheet, and folded back to the back sheet side and fixed so that the crotch portion of the underwear is wound, so that it can be used as a “winged” state. You can also. That is, in this absorbent article, the state of “without wings” and the state of “with wings” can be arbitrarily selected.

  When used as a “no wing” state, the wing-shaped flap is folded back to the liquid-permeable surface sheet side, and the adhesive layer is provided in a state of being peelably attached to the release function sheet of the three-dimensional gather. The wing-shaped flap assists the standing of the three-dimensional gather on the skin side, and the cushioning property of the three-dimensional gather is improved by arranging the wing-shaped flap in a loop shape. As a result, the three-dimensional gather is pressed against the skin surface, and a gap is hardly generated between the skin and the three-dimensional gather, so that side leakage of body fluid can be reliably prevented. In addition, wing-shaped flaps are arranged in a loop on the outside of the three-dimensional gather, and when worn, the wing-shaped flaps bulge outward in the width direction to increase the area covering the underwear, so that side leakage of body fluid can be prevented more reliably. become. Thus, in this absorbent article, even when used as “without wings”, the wing-shaped flap functions so as to improve the body fluid leakage preventing effect.

  On the other hand, when used as “with wings”, the pressure-sensitive adhesive layer of the wing-shaped flap is simply peeled off from the release function sheet and folded back to the back sheet side, so that the mounting operation is very simple.

  Furthermore, in this absorbent article, since the peeling functional sheet is bonded to the outer surface side of the three-dimensional gather, it is possible to prevent the body fluid from seeping out from the three-dimensional gather, and the side leakage preventing effect is further enhanced. Thus, in this absorbent article, the release function sheet also functions to prevent side leakage of body fluid.

  As the present invention according to claim 2, the three-dimensional gather has an outer inclined portion that inclines toward the skin side in a cross-sectional view of the absorbent article, and the adhesive layer of the wing-shaped flap includes the three-dimensional The absorbent article according to claim 1, wherein the absorbent article is detachably attached to the release functional sheet bonded to the outer surface side of the outer inclined portion of the gather.

  In the invention of claim 2, the three-dimensional gather is provided with an outer inclined portion that is inclined outward toward the skin side in a cross-sectional view of the absorbent article, and the adhesive layer of the wing-shaped flap is provided with the outer inclined portion. It is made to stick to the peeling functional sheet joined to the outer surface side of the part so that peeling is possible. For this reason, when used as “without wings”, the restoring force of the wing-shaped flaps arranged in a loop shape is easily transmitted to the three-dimensional gather, and the three-dimensional gather is likely to stand on the skin side. Moreover, by sticking the adhesive layer of the wing-shaped flap to the outer inclined portion, a space is provided between the wing-shaped flap arranged in a loop shape and the three-dimensional gather so that a moderate cushioning property can be obtained. become.

  As this invention which concerns on Claim 3, the extension width | variety from the main-body part of the said wing-shaped flap is below the length from the standing base end part to the top part which follows the cross section of the said three-dimensional gather in the cross sectional view of an absorbent article. An absorbent article according to any one of claims 1 and 2 is provided.

  In the invention of claim 3 above, when used as “without wings”, when the wing-shaped flap bulges outward from the three-dimensional gathers in a cross-sectional view of the absorbent article, the body portion of the wing-shaped flap is generated. The extension width is set to be equal to or shorter than the length from the standing base end portion to the top portion along the cross section of the three-dimensional gather in the cross sectional view of the absorbent article.

  As the present invention according to claim 4, the absorption functional sheet according to any one of claims 1 to 3, wherein the release functional sheet is provided at least in the arrangement range of the wing-shaped flaps with respect to the longitudinal direction of the absorbent article. A sex article is provided.

  In the invention according to the fourth aspect, the range in which the release functional sheet bonded to the outer surface side of the three-dimensional gather is arranged in the longitudinal direction of the absorbent article is defined. Since the release function sheet is attached to the pressure-sensitive adhesive layer when the wing-shaped flap is folded back toward the liquid-permeable surface sheet, it is preferable to provide at least the wing-shaped flap in the arrangement range. In addition, since the said peeling function sheet | seat also has the effect which prevents the exudation of the bodily fluid from a three-dimensional gather, it is also possible to provide over the whole standing range of a three-dimensional gather.

  As this invention which concerns on Claim 5, the width direction outer side edge part of the said adhesive layer is provided in the range of 5 mm or less from the width direction front-end | tip part of the said wing-shaped flap. An absorbent article is provided.

  In the invention of claim 5 above, when used as “without wings”, if the gap from the widthwise front end of the wing-shaped flap to the widthwise outer end of the pressure-sensitive adhesive layer is wide, the wing-shaped flap is This gap is set to 5 mm or less because it cannot be firmly attached to the release function sheet.

  As this invention which concerns on Claim 6, as for the said wing-shaped flap, the absorptivity in any one of Claims 1-5 by which the embossing of 1 or several linear form is given along the longitudinal direction of an absorbent article. Articles are provided.

  In the invention described in claim 6, when the wing-shaped flap is folded back toward the liquid-permeable surface sheet, the embossed wire is used as a flexible shaft so that the wing-shaped flap can be easily folded. Or, a plurality of linear embossing is applied.

  As this invention which concerns on Claim 7, while the adhesive layer of the said wing-shaped flap is covered with a 2nd peeling function sheet, it is with respect to the peeling function sheet of the said three-dimensional gather on the outer surface side of the said 2nd peeling function sheet. The absorptive article according to any one of claims 1 to 6 provided with the 2nd adhesive layer stuck so that exfoliation is possible.

  In the invention described in claim 7, the pressure-sensitive adhesive layer of the wing-shaped flap is covered with the second release function sheet, and peeled from the release function sheet of the three-dimensional gather on the outer surface side of the second release function sheet. By providing a second pressure-sensitive adhesive layer that can be attached, the wing-shaped flap can be unfolded by picking the second release function sheet and pulling it outward when used as a “wing”. The operation of unfolding the shaped flap becomes even easier.

  As described above in detail, according to the present invention, in an absorbent article in which the wearing state of “without wings” and “with wings” can be arbitrarily selected, it is easy to wear and side leakage can be reliably prevented.

It is a partial fracture development view of sanitary napkin 1 concerning the present invention. It is the II-II arrow directional view (cross-sectional view). It is the III-III arrow directional view (cross-sectional view) of FIG. It is a cross-sectional view showing a mounting state when used as “without wings”. It is a cross-sectional view showing a wearing state when used as “with wings”. It is a cross-sectional view of the sanitary napkin 1 showing the three-dimensional gather BS. 3 is an enlarged view of a wing-shaped flap W. FIG. It is a cross-sectional view of the sanitary napkin 1 according to another embodiment. It is an expanded view of the conventional sanitary napkin N. FIG. FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[Basic structure of sanitary napkin 1]
The sanitary napkin 1 according to the present invention, as shown in FIG. 1 to FIG. 3, is a liquid-permeable back sheet 2 made of a polyethylene sheet, a polypropylene sheet, etc. A top sheet 3, an absorbent body 4 made of cotton-like pulp or synthetic pulp interposed between the two sheets 2 and 3, and side nonwoven fabrics 7 and 7 respectively disposed along the longitudinal direction on both sides of the surface. It is composed of Around the absorbent body 4, at the front and rear edge portions in the napkin longitudinal direction, the outer edge portion of the liquid-impermeable back sheet 2 and the liquid-permeable surface sheet 3 is formed of an adhesive such as hot melt, heat seal, or the like. The liquid-impervious back sheet 2 and the side nonwoven fabric 7 which are joined by an adhesive means and extend laterally from the edge of the absorbent body 4 at both side edges thereof are adhesives such as hot melt or heat. The outer periphery flap part in which the absorber 4 does not exist is formed on the outer periphery by being bonded by an adhesive means such as a seal.

Hereinafter, the structure of the sanitary napkin 1 will be described in detail.
As the liquid-impermeable back sheet 2, a sheet material having at least water shielding properties such as an olefin resin sheet such as polyethylene or polypropylene is used. In addition, a laminated nonwoven fabric obtained by laminating a nonwoven fabric on a polyethylene sheet or the like, or A nonwoven fabric sheet (in this case, the waterproof film and the nonwoven fabric constitute a liquid-impervious back sheet) can be used after substantially impervious to liquid imperviousness by interposing a waterproof film. In recent years, those having moisture permeability tend to be used from the viewpoint of preventing stuffiness. This water- and moisture-permeable sheet material is a microporous sheet obtained by forming a sheet by melting and kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene, and then stretching in a uniaxial or biaxial direction. It is.

  In the sanitary napkin 1, as described in detail later, when used as “without wings”, the liquid-impervious back sheet 2 is turned to the skin side by folding the wing-shaped flap W toward the liquid-permeable surface sheet 3 side. Since the liquid-impermeable back sheet 2 may be exposed to the base of the leg, it may be a general material such as the above-mentioned polyethylene resin, but the soft touch even when touching around the leg It is preferable to use a material such as a laminated nonwoven fabric.

  Next, as the liquid-permeable surface sheet 3, a porous or non-porous nonwoven fabric or a porous plastic sheet is preferably used. Examples of the material fibers constituting the nonwoven fabric include synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester and polyamide, recycled fibers such as rayon and cupra, and natural fibers such as cotton. A nonwoven fabric obtained by an appropriate processing method such as a lace method, a spun bond method, a thermal bond method, an air through method, a melt blown method, or a needle punch method can be used. Of these processing methods, the spunlace method is excellent in terms of flexibility and the spunbond method is excellent in drapeability, and the thermal bond method and the air-through method are excellent in terms of being bulky and soft.

  The absorbent body 4 interposed between the liquid-impervious back sheet 2 and the liquid-permeable top sheet 3 is, for example, a mixture of a superabsorbent resin in pulp or a mixture of chemical fibers in the pulp. A high water-absorbing polymer is used. The absorbent body 4 is surrounded by a crepe paper 5 as shown in FIG. 2 and the like in order to maintain the shape and quickly diffuse menstrual blood and prevent reversal of once absorbed menstrual blood and the like. Is also possible.

  Examples of the pulp include chemical fibers obtained from wood, cellulose fibers such as molten pulp, and artificial cellulose fibers such as rayon and acetate. Softwood pulp having a longer fiber length than hardwood pulp functions and It is preferably used in terms of price. As the absorbent body 4, one prepared by stacking fiber or airlaid method can be used. In particular, when a thin sanitary napkin is used, it is preferable to use one produced by the airlaid method. Further, as the superabsorbent polymer, superabsorbent polymer granular powder (SAP) or superabsorbent polymer fiber (SAF) can be used.

  On the other hand, the width dimension of the liquid-permeable surface sheet 3 is slightly longer than the width of the absorbent body 4 and covers the absorbent body 4 as shown in the cross-sectional views of FIGS. 2 and 3 in the illustrated example. The purpose of the three-dimensional gather BS is to prevent the penetration of a side nonwoven fabric 7 different from the liquid-permeable surface sheet 3, specifically menstrual blood or a cage, or to increase the feeling of touch. Depending on the case, it is configured using a non-woven fabric material subjected to appropriate water repellent treatment or hydrophilic treatment. As such a side nonwoven fabric 7, for example, if importance is placed on functions such as preventing the penetration of body fluids or enhancing the feeling of touch, a silicone, paraffin, alkylchromic chloride water repellent or the like is coated. It is desirable to use a water-treated nonwoven fabric. If importance is attached to the absorbability of body fluids in the wing-shaped flaps W, W, a method of polymerizing a compound having a hydrophilic group, for example, an oxidation product of polyethylene glycol, in the synthetic fiber production process, Treating with metal salt such as stannic, partially dissolving the surface to make it porous and making the synthetic fiber swell or porous by applying a metal hydroxide, etc., applying capillary action to impart hydrophilicity It is desirable to use a hydrophilic treated nonwoven fabric.

  As shown in FIGS. 2 and 3, the side nonwoven fabric 7 is impervious to the outer side of the intermediate part in the width direction from the inner position of the absorbent body 4 slightly beyond the absorbent side edge in the unfolded state of the sanitary napkin 1. The liquid back sheet 2 is bonded to the outer edge of the liquid back sheet 2 with an adhesive such as hot melt, and the laminated sheet portion of the side nonwoven fabric 7 and the liquid-impermeable back sheet 2 substantially corresponds to a body fluid discharge portion. A pair of left and right wing flaps W, W is formed at the absorber side portion position. The wing-shaped flap W will be described in detail later.

  On the other hand, the inner side portion of the side nonwoven fabric 7 is folded substantially double, and inside this double sheet, one or a plurality of both ends or appropriate positions in the longitudinal direction are fixed in the height direction, In the illustrated example, two thread-like elastic elastic members 8, 8 are provided. As shown in FIG. 3, the double sheet portion is bonded to the absorbent body 4 side in a state of being folded and laminated in a Z-shaped cross section, as shown in FIG. 3 is a three-dimensional gather BS and BS standing on the surface side in the shape of a cross-section. The three-dimensional gather BS will be described in detail later.

  As shown in FIG. 1 and FIG. 2, underwear is placed on the non-skin contact surface side of the main body portion in which the absorbent body 4 is interposed between the liquid-permeable top sheet 3 and the liquid-impervious back sheet 2. In the illustrated example, three main body misalignment-preventing adhesive layers 9, 9... Are formed by an appropriate application pattern for fixing to the main body. In addition, wings-stopping adhesive layers 10 and 10 are formed on the surface of the wing-shaped flaps W and W on the liquid-impermeable back sheet 2 side.

[About three-dimensional gathered BS and wing-shaped flap W]
As shown in FIG. 2, each of the three-dimensional gathered BS is firmly joined to the outer surface side by a joining means such as a hot-melt adhesive or heat seal. ing. The release function sheet 11 is arranged in a range covering almost the entire outer surface side of the three-dimensional gather BS from the standing base end portion to the top or the vicinity thereof in the cross-sectional view of the sanitary napkin 1 shown in FIG. It is installed. The release function sheet 11 may be disposed so as to cover the top of the three-dimensional gather BS, but if the release function sheet 11 is extended to the top, the skin contact may be deteriorated, so the range is slightly shorter than the top. It is preferable to arrange so as to cover the above.

  As the release function sheet 11, for example, a release treatment liquid such as a silicone resin, a fluorine resin, or a tetrafluoroethylene resin is applied to or sprayed on the contact surface with the wings prevention adhesive layer 10. An applied and release treated paper (quality paper) or a plastic sheet can be used. In this case, it is preferable to use a plastic sheet that can easily prevent body fluid from seeping out in the three-dimensional gather BS. In addition, even if it does not perform a mold release process, the film itself may be sufficient as long as it does not cause the fall of adhesive force.

  As shown in FIG. 4, the wing-shaped flap W has a liquid-impermeable back sheet 2 on the outer surface side in a product state (a state where the sanitary napkin 1 is taken out from a packaging sheet (not shown)). Is folded back to the liquid-permeable surface sheet 3 side so as to be exposed to the surface, and the wings-stopping adhesive layer 10 provided on the surface of the liquid-impermeable back sheet 2 side is detachably attached to the release functional sheet 11 It is provided in the state. Specifically, as shown in FIG. 1, the wing-shaped flap W is folded to the liquid-permeable surface sheet 3 side so as to stand up toward the skin side at a fold line RL along the base end portion, and this folded The leading end of the wing-shaped flap W is further bent inward at a position closer to the base end side than the wings-stopping adhesive layer 10, and the wings-stopping adhesive layer 10 provided on the surface of the liquid-impermeable back sheet 2 side. Is attached to the release function sheet 11. Thereby, the loop-shaped part of the hollow cross section which the wing-like flap W connected to the outer side of solid gather BS is formed in the both sides by the side of the skin contact surface of the absorber 4, respectively.

  In this state, the main body displacement preventing adhesive layers 9, 9. When used in this state, the wing-shaped flap W is folded back to the liquid-permeable surface sheet 3 side, and the wings-stopping adhesive layer 10 is detachably attached to the release function sheet 11 of the three-dimensional gather BS. The restoring force of the wing-shaped flap W to return to the deployed state assists the standing of the three-dimensional gather BS on the skin side, and the wing-shaped flap W is looped even when pressure is applied to the three-dimensional gather BS from the skin surface. The cushioning property of the three-dimensional gather BS is improved by being arranged in the position. As a result, the skin contact surface of the three-dimensional gather BS is pressed against the skin surface, and it becomes difficult to form a gap between the skin and the three-dimensional gather BS, so that side leakage of body fluid can be reliably prevented. Furthermore, a wing-shaped flap W is arranged in a loop shape on the outside of the three-dimensional gather BS, and the wing-shaped flap W swells outward in the width direction at the time of wearing, so that the area covering the underwear is increased compared to the case of the three-dimensional gather BS alone Therefore, side leakage of body fluid can be prevented more reliably.

  On the other hand, as shown in FIG. 5, the sanitary napkin 1 peels off the anti-slip adhesive layer 10 of the wing-shaped flap W from the release functional sheet 11 as necessary at the time of wearing, and impregnates the impermeable back surface. It can also be used as a “winged” state by folding back to the seat 2 side and fixing the crotch portion of the undergarment around it. When used in this state, as described above, the wing-shaped flap W is simply peeled off from the release functional sheet 11 and folded back to the liquid-impervious back sheet 2 side, so that the mounting operation becomes very simple. Even when used as “with wings”, the three-dimensional gather BS standing on the skin side is formed on both sides on the skin contact surface side, so that side leakage can be reliably prevented.

  Furthermore, in this sanitary napkin 1, since the release function sheet 11 is joined to the outer surface side of the three-dimensional gather BS, the body fluid soaks from the three-dimensional gather BS from the gathered nonwoven fabric 7 constituting the three-dimensional gather BS alone. It is possible to prevent sticking out and the side leakage preventing effect is further enhanced.

  As shown in FIG. 2, the three-dimensional gather BS is formed with an inner inclined portion 13 that is inclined inward toward the skin side in order from the base end side in a cross-sectional view of the sanitary napkin 1. In addition, the outer inclined portion 12 that is inclined outward as it goes toward the skin side with the tip of the inner inclined portion 13 as a base point is formed in a substantially square shape in cross section. Thus, it is preferable that the three-dimensional gather BS is formed in a cross-sectional shape having at least one outer inclined portion 12. And it is preferable to stick to the peeling functional sheet 11 joined to the outer surface side of the outer side inclination part 12 of the said three-dimensional gather BS so that peeling is possible. As a result, when used as “without wings”, the restoring force of the wing-shaped flaps W arranged in a loop with the solid gather BS to return to the unfolded state raises the solid gather BS to the skin side. It becomes easy to act as force. In addition, as shown in FIG. 4, when used as “without wings”, a hollow space 14 is provided between the three-dimensional gather BS and the wing-shaped flap W, so that the cushion is suitable for the three-dimensional gather BS. As a result, it is possible to more reliably prevent oozing of body fluid.

  The three-dimensional gather BS can be formed in various cross-sectional shapes as shown in FIGS. 6 (A) and 6 (B). FIG. 6A includes only the outer inclined portion 12. FIG. 6 (B) is formed in three steps of an outer inclined portion 12, an inner inclined portion 13, an outer inclined portion 12 and a Z-shaped cross section in order from the base end portion. It is preferable to attach the wings-stopping adhesive layer 10 to the outer side inclined portion 12 on the front end side than the outer side inclined portion 12 because the three-dimensional gather BS is likely to stand up.

  As shown in FIG. 1, the extending width a from the main body portion of the wing-shaped flap W is 15 mm ≦ a ≦ 35 mm, preferably 20 mm ≦ a ≦ 30 mm. The extending width a is a width based on a portion where the wing-shaped flap W starts to protrude outward from the main body portion, and extends outward from a fold-back line RL of the wing-shaped flap W extending in the longitudinal direction at the base end portion. It is width.

  In the cross sectional view of the sanitary napkin 1 shown in FIG. 2, the extension width a is set to a length b or less (a ≦ b) from the standing base end portion to the top portion along the cross section of the three-dimensional gather BS. Is preferred. As a result, when used as “without wings”, the wing-shaped flap W does not swell greatly outside the three-dimensional gather BS, and the uncomfortable feeling at the time of wearing can be reduced.

  As shown in FIG. 1, the release functional sheet 11 is preferably provided at least in the arrangement range of the wing-shaped flaps W with respect to the napkin longitudinal direction. As a result, the wings-stopping adhesive layer 10 of the wing-shaped flap W can be adhered to the release function sheet 11. Further, in order to prevent body fluid from seeping out from the three-dimensional gather BS, it is also preferably provided before and after the arrangement range of the wing-shaped flap W. In this case, it is provided over the entire standing range of the three-dimensional gather BS. Alternatively, the sanitary napkin 1 may be provided over the entire length.

  As shown in FIG. 1, the wings-stopping adhesive layer 10 has a gap c in the napkin width direction between the outer end in the width direction and the front end in the width direction of the wing-shaped flap W of 5 mm or less, preferably 3 mm or less. It is good to set. When using as “no wings”, if the gap c is wide, the wing-shaped flap W cannot be firmly attached to the release function sheet 11 of the three-dimensional gather BS. Therefore, the gap c is 5 mm or less compared with a normal one. Is set small. On the other hand, the distance d in the napkin width direction between the width direction inner end portion and the width direction front end portion of the wing-shaped flap W is formed shorter than the width e of the outer inclined portion 12 of the three-dimensional gather BS. Thereby, it becomes easy to stick the wings prevention adhesive layer 10 to the peeling functional sheet 11 over the whole, and the part which is not sticking to the peeling functional sheet 11 of the wings prevention adhesive layer 10 is a wearer's leg. It can be prevented from adhering to the skin surface.

  As shown in FIG. 7, the wing-shaped flap W is preferably provided with one or a plurality of linear embossments 15 along the longitudinal direction of the napkin. In the illustrated example, four linear embossments 15 are provided at substantially equal intervals in the napkin width direction. The linear embossing 15 can be arranged in various patterns such as a plurality of dots arranged in a line, a dotted line, and a straight line. By providing the linear emboss 15, the linear emboss 15 becomes a flexible shaft, and the wing-shaped flap W can be easily bent toward the liquid-permeable surface sheet 3. The linear emboss 15 is provided between the wrapping line RL of the wing-shaped flap W and the inner end in the width direction of the wing anti-adhesive layer 10, in the formation range of the wing anti-adhesive layer 10 and the outer range thereof. Is preferably not provided. This is because the range is a range to be attached to the release function sheet 11 of the three-dimensional gather BS, and thus it is necessary to make the attachment without bending in the middle.

  As another example of the sanitary napkin 1, as shown in FIG. 8, the wings-stopping adhesive layer 10 of the wing-shaped flap W is covered with a second release function sheet 16, and this second A second pressure-sensitive adhesive layer 17 that is detachably attached to the release function sheet 11 of the three-dimensional gather BS can be provided on the outer surface side of the release function sheet 16. Thereby, when using it as "with wings", since the wing-shaped flap W can be expand | deployed by picking the said 2nd peeling function sheet | seat 16 and pulling it outside, mounting | wearing operation | work can be further facilitated. When the developed wing-shaped flap W is attached to the underwear, the second release function sheet 16 is removed from the wings-stopping adhesive layer 10 and used. The second release functional sheet 16 can be made of high-quality paper, film, nonwoven fabric, or the like as a material. However, when used as “without wings”, the second release functional sheet 16 is at the base of the leg. A soft material such as a laminated nonwoven fabric is preferably used because it may cause a sense of incongruity by contact, and a film is preferably used to prevent body fluid from seeping out from the three-dimensional gather BS.

  The sanitary napkin 1 having the above configuration is wrapped in a state where the wing-shaped flap W is folded back to the liquid-permeable surface sheet 3 and the wings-stopping adhesive layer 10 is detachably attached to the release function sheet 11. It is placed on the sheet, and the packaging sheet is folded in three in the longitudinal direction and individually packaged.

  DESCRIPTION OF SYMBOLS 1 ... Sanitary napkin, 2 ... Liquid impervious back sheet, 3 ... Liquid permeable top sheet, 4 ... Absorber, 5 ... Crepe paper, 7 ... Side nonwoven fabric, 8 ... Thread-like elastic elastic member, 9 ... Main body slipper stop Adhesive layer, 10 ... Wings prevention adhesive layer, 11 ... Peeling functional sheet, 12 ... Outer inclined part, 13 ... Inner inclined part, 14 ... Space part, 15 ... Linear embossing, 16 ... Second peeling functional sheet , 17 ... second adhesive layer, BS ... solid gather, W ... wing-shaped flap

Claims (7)

Three-dimensional gathers that stand on the skin side are formed on both sides of the skin contact surface side of the main body part in which an absorbent body is interposed between the liquid-permeable top sheet and the back sheet, and both sides of the main body part. In the absorbent article in which a wing-shaped flap having an adhesive layer is formed on the surface on the back sheet side while extending outwardly in each part,
A peeling functional sheet that peels the exposed surface side is joined to the outer surface side of the three-dimensional gather,
The absorbent article, wherein the wing-shaped flap is folded back toward the liquid-permeable surface sheet and is provided in a state where the pressure-sensitive adhesive layer is detachably attached to the release function sheet.   The three-dimensional gather has an outer inclined portion that inclines outward toward the skin side in a cross-sectional view of the absorbent article, and the adhesive layer of the wing-shaped flap is on the outer surface side of the outer inclined portion of the three-dimensional gather. The absorptive article according to claim 1 stuck on said joined exfoliation functional sheet so that exfoliation is possible.   The extending width from the main body portion of the wing-shaped flap is set to be equal to or less than the length from the standing base end portion to the top portion along the cross-section of the three-dimensional gather in a cross-sectional view of the absorbent article. The absorbent article in any one.   The absorbent article according to any one of claims 1 to 3, wherein the release function sheet is provided at least in an arrangement range of the wing-shaped flaps with respect to a longitudinal direction of the absorbent article.   The absorbent article according to any one of claims 1 to 4, wherein an outer end portion in the width direction of the pressure-sensitive adhesive layer is provided in a range of 5 mm or less from a front end portion in the width direction of the wing-shaped flap.   The absorbent article according to any one of claims 1 to 5, wherein the wing-shaped flap is provided with one or a plurality of linear embosses along a longitudinal direction of the absorbent article.   The adhesive layer of the wing-shaped flap is covered with a second release function sheet, and is attached to the outer surface side of the second release function sheet so as to be peelable from the release function sheet of the three-dimensional gather. The absorbent article according to any one of claims 1 to 6, wherein a pressure-sensitive adhesive layer is provided.

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