JP6367508B1 - Absorbent articles - Google Patents

Abstract

The present invention provides an absorbent article in which an absorbent core can be fitted to the body to prevent leakage.
An absorbent core (31) of an absorbent article has a high basis weight portion (33) and a medium basis weight portion (35) located on the outer side in the width direction than the high basis weight portion and having a lower basis weight than the high basis weight portion. ) And a low basis weight portion (34) having a lower basis weight than the middle basis weight portion. The high weighted portion has a first high weighted portion (331) and a second high weighted portion (332) that are spaced apart in the front-rear direction. The low weight portion includes a first region (341A) provided between the first high weight portion and the second high weight portion, and a pair of substantially continuous with the first region on the outer side in the width direction than the first region. A second region (342B). The first area is provided in the wing area. The second region extends inclined with respect to the width direction and reaches the outer edge of the absorbent core.
[Selection] Figure 1

Description

  The present invention relates to an absorbent article such as a sanitary napkin.

  Absorbent articles such as sanitary napkins, panty liners, and incontinence pads for absorbing menstrual blood, cages and the like are known. The absorbent article is configured to absorb bodily fluid excreted from the excretion opening, and is required to be fit to the body. For example, Patent Literature 1 discloses an absorbent article in which a plurality of grooves are provided in an absorbent core. The groove crosses the absorbent core on the front side and the rear side of the middle-high portion (high weight perimeter) of the absorbent core. When a force inward in the width direction is applied from the wearer's leg, it is difficult to form a heel extending in the longitudinal direction on the absorbent core, and is configured to conform to the shape of the body (paragraph 0038 of Patent Document 1). FIG. 2).

Japanese Patent No. 62221020

  As for the absorbent article of patent document 1, the middle-high part is provided in the wing area. The middle and high portions are thicker than the surrounding absorbent core and are raised on the wearer side. The cross section of the body along the anteroposterior direction is curved in the vicinity of the excretion opening where the vaginal opening and the pubic portion are located. Although it fits, the middle and high parts of other parts may not fit the body. Therefore, in the wing area, there is a possibility that a gap with respect to the body is generated and leakage occurs.

  Therefore, an absorbent article that can more appropriately fit the absorbent core to the body and suppress leakage is desired.

  An absorbent article according to an aspect includes a front-rear direction and a width direction orthogonal to each other, an absorbent core, and a wing that extends outward in the width direction from the outer edge of the absorbent core in the width direction and can be folded back during use. And a wing region that is a region between a front end edge of the wing and a rear end edge of the wing in the front-rear direction, and the absorbent core includes a high weight part and an outer side in the width direction than the high weight part. A middle weight part having a lower basis weight than the high weight part, and a lower weight part having a lower weight than the middle weight part, the high weight part being spaced apart in the front-rear direction. A first high weighted portion and a second high weighted portion, wherein the low weighted portion is a first region provided between the first high weighted portion and the second high weighted portion; Substantially continuous with the first region outside the one region in the width direction. A pair of second regions, wherein the first region is provided in the wing region, and the second region extends obliquely with respect to the width direction and reaches the outer edge of the absorbent core. doing.

Drawing 1 is a top view of an absorptive article concerning an embodiment seen from the skin opposed side. FIG. 2 is a plan view of the absorbent article according to the embodiment as viewed from the non-skin facing surface side. FIG. 3 is a cross-sectional view of the absorbent article along the line AA shown in FIG. FIG. 4 is a cross-sectional view of the absorbent article along the line BB shown in FIG. FIG. 5 is a plan view of the absorbent core as seen from the skin facing surface side. Drawing 6 is a figure showing a modification mode at the time of wear of an absorptive article. FIG. 7 is a diagram showing a wearing state of the absorbent article in a cross section at the center in the width direction of the body. FIG. 8 is a diagram for explaining a deformation mode of the absorbent core.

(1) Outline of Embodiments At least the following matters will become apparent from the description of the present specification and the accompanying drawings.
An absorbent article according to an aspect includes a front-rear direction and a width direction orthogonal to each other, an absorbent core, and a wing that extends outward in the width direction from the outer edge of the absorbent core in the width direction and can be folded back during use. And a wing region that is a region between a front end edge of the wing and a rear end edge of the wing in the front-rear direction, and the absorbent core includes a high weight part and an outer side in the width direction than the high weight part. A middle weight part having a lower basis weight than the high weight part, and a lower weight part having a lower weight than the middle weight part, the high weight part being spaced apart in the front-rear direction. A first high weighted portion and a second high weighted portion, wherein the low weighted portion is a first region provided between the first high weighted portion and the second high weighted portion; Substantially continuous with the first region outside the one region in the width direction. A pair of second regions, wherein the first region is provided in the wing region, and the second region extends obliquely with respect to the width direction and reaches the outer edge of the absorbent core. doing.

  According to this aspect, since the first area of the low weight portion is provided in the wing region, the first high weight portion and the second high weight portion are divided by the first region, and the first portion is bent to the wing region in the front-rear direction. A base point can be provided. Therefore, it is possible to reduce the gap between the body and the absorbent article, which is likely to occur at a position closer to the buttocks than the excretory opening contact area, and to enhance the fit. In addition, the second area of the low weight portion extends while being inclined with respect to the width direction. When the wearer walks with the absorbent article fitted to the body, a twisting force is applied. At this time, the pair of second regions extend from the outer edge of the absorbent core so as to incline with respect to the width direction, and therefore can absorb deformation caused by the twisting force at the side of the absorbent core. The first region and the second region are substantially continuous, and deformation of the first region can be suppressed by absorption of force by the second region. Therefore, the first high weighted portion, the second high weighted portion, and the first region are not easily deformed by the force in the twisting direction, and can continue to fit to the body.

  According to a preferred aspect, the low weight portion has a front and rear low weight portion that extends in the front and rear direction across the center of the absorbent core in the width direction, and the front and rear low weight portion is the second high weight portion. It may be provided rearward of the part and rearward of the wing area.

  According to this aspect, the region on the rear side of the wing region is disposed so as to face the collar portion. A convex deformation due to the front and back low-weight parts is formed in the region disposed facing the flange, and the absorbent core can be disposed along the crack. In addition, because the front and rear low weight parts are located on the rear side of the second high weight parts, it achieves deformation with the front and rear low weight parts as the apex while maintaining the fit by the thickness of the absorbent core by the second high weight parts. It is possible to improve fit to both the vaginal opening and the rupture.

  According to a preferred aspect, the absorbent article may have a squeezed portion in which the absorbent core is compressed in the thickness direction, and the squeezed portion may overlap at least part of the second region.

  According to this aspect, the compression part increases the rigidity of the second region, the second region can be repeatedly deformed, and the force in the twisting direction can be continuously absorbed.

  According to a preferred aspect, the squeezing part may terminate in the low weight part.

  According to this aspect, when the squeezing portion reaches a region where the basis weight is higher than the low basis weight portion, the force in the twisting direction is transmitted to the region where the basis weight is high while absorbing deformation due to the second region, and the twisting direction May not be absorbed by the second region. Since the pressing part terminates in the low weight part and does not reach the middle weight part and the high weight part, the force in the twist direction can be absorbed by the deformation in the second region, and the force in the twist direction is absorbed in the other regions. Propagation can be suppressed.

  According to a preferred aspect, the length of the first region in the front-rear direction may be 5 mm or more and less than 25 mm.

  According to this aspect, when the length of the first region in the front-rear direction is 5 mm or more, it is easier to obtain the dividing effect of the first high weight portion and the second high weight portion. When the length of the first region in the front-rear direction is less than 25 mm, it is possible to secure fit to the excretion opening and suppress leakage.

  According to a preferred aspect, the first region may be connected to the second region and may be inclined with respect to the width direction.

  According to this aspect, the force in the twisting direction can be absorbed also by the first region, and the fit of the first high weighted portion and the second high weighted portion can be maintained.

  According to a preferred aspect, the first region and the second region may have a convex curved shape that extends outward in the front-rear direction in plan view.

  According to this aspect, when worn between the legs during wearing (when pulling up the underwear) and during wearing, the force toward the inner side in the width direction is the first high weighted portion and the first weighted portion via the first region and the second region. It acts on the second high weight part. Since the first region and the second region have a curved shape, the force received from the high weight portion when the twisting force is applied is dispersed. Therefore, a gentle convex shape can be realized and fit to the body can be maintained without a sense of incongruity.

  According to a preferred aspect, at least a part of the first region may be located in front of the front-rear direction center of the wing region.

  Generally, it is attached so that the vaginal opening hits the center of the wing area in the front-rear direction. According to this aspect, the deformation base point by the first region can be provided in front of the center in the front-rear direction of the wing region, and the absorbent core is placed along the region near the vagina mouth or the region in front of the vagina mouth. This can improve fit. By providing the deformation base point on the front side of the vaginal opening, the absorption core can be deeply and flexibly attached to the vaginal opening covered with the labia, and the fit can be further improved.

According to one preferred embodiment, wherein the first region where high basis weight portion and the second high basis weight portion is provided, on the non-skin thickness direction until pairs facing surfaces of the absorbent core from the skin facing surface of the absorbent article A plurality of through holes may be formed.

  According to this aspect, by providing a through-hole in the region where the first high-weighted portion and the second high-weighted portion are provided, even when a large amount of menstrual blood or urine is excreted at a time, it is difficult to overflow. Body fluid can reach the inside of the absorption core. It becomes possible to maintain the dryness of the skin facing surface of the absorbent article and to effectively maintain the good fit and wearing feeling.

  According to a preferred aspect, the length of the absorbent article in the front-rear direction is 285 mm or more, and the center of the wing region in the front-rear direction is in front of the center of the absorbent article in the front-rear direction. The compressed portion in which the absorbent core is compressed in the thickness direction is provided along the second region in a plan view of the absorbent article, and is more than the low weight portion and the wing region. The rear side is provided with a second low weight part extending from the outer edge of the absorbent core toward the inner side in the width direction and extending obliquely with respect to the width direction, and is located behind the second low weight part. May be provided with a third low weight portion extending from the outer edge of the absorbent core toward the inner side in the width direction and extending obliquely with respect to the width direction.

  According to this aspect, three deformation base points are formed at intervals in the front-rear direction, and the absorbent core is more easily along with the roundness extending in the front-rear direction of the body. A relatively long absorbent article having a length in the front-rear direction of the absorbent article of 285 mm or more can be placed along the body.

  According to a preferred aspect, the absorbent article may have a fold line for folding the absorbent article in the front-rear direction, and the first region may be arranged in a region that does not have the fold line.

  According to this aspect, the first region is prevented from being easily deformed by folding, and the low weight portion is easily deformed when sandwiched between the wearer's legs.

  According to a preferred aspect, the second region may be disposed in a region that does not have the fold line.

  According to this aspect, the second region is prevented from being easily deformed by folding, and the low basis weight portion is easily deformed when sandwiched between the legs of the wearer.

(2) Configuration of Absorbent Article Hereinafter, the absorbent article according to the embodiment will be described with reference to the drawings. The absorbent article may be an absorbent article such as a sanitary napkin, panty liner, incontinence pad, fecal pad. The absorbent article may be an article used attached to the inside of a worn article such as underwear. The absorbent article 1 of the present embodiment is a sanitary napkin for night use, and the length of the absorbent article 1 in the front-rear direction is 285 mm or more.

  In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and ratios of dimensions and the like may differ from actual ones. Therefore, specific dimensions and the like should be determined in consideration of the following description. Further, there may be a case where the dimensional relationships and ratios are different between the drawings.

  FIG. 1 is a plan view of an absorbent article 1 according to an embodiment as viewed from the skin facing surface side. FIG. 2 is a plan view of the absorbent article 1 according to the embodiment as viewed from the non-skin facing surface side. The plan view shown in FIGS. 1 and 2 is a plan view in an extended state. The stretched state is a state in which the absorbent article is stretched until no wrinkles are formed due to leakproof gathers or the like. Here, the “skin facing surface side” corresponds to the side facing the wearer's skin during use. The “non-skin facing surface side” corresponds to the side that is directed away from the wearer's skin during use. 3 is a cross-sectional view taken along the line AA shown in FIG. 1, and FIG. 4 is a cross-sectional view taken along the line BB shown in FIG.

  The absorbent article 1 has a front-rear direction L and a width direction W. The front-rear direction L is a direction extending from the front side (abdomen side) of the wearer to the rear side (back side), or a direction extending from the rear side of the wearer to the front side. The width direction W is a direction orthogonal to the front-rear direction L. The absorbent article has a thickness direction T extending to the skin facing surface side T1 and the non-skin facing surface side T2.

  The absorbent article 1 has a central area S3, a front side area S1, and a rear side area S2. The central area S3 is an area having an excretion opening contact portion that contacts an excretion opening (for example, vaginal opening) of the wearer. When the absorbent article is attached to the underwear, the central area S3 is located at the crotch part of the underwear. That is, the central area is an area disposed between the wearer's crotch, that is, between the wearer's legs. The central area S3 may be biased to the front side in the absorbent article. More specifically, the center of the central area S3 in the front-rear direction L may be located on the front side of the center of the absorbent article 1 in the front-rear direction L.

  The front side area S1 is located in front of the central area S3. The front edge of the front region S1 defines the front edge of the absorbent article 1. The rear side area S2 is located behind the central area S3. The rear edge of the rear side region S2 defines the rear edge of the absorbent article 1. The length in the front-rear direction L of the rear side region S2 may be longer than the length in the front-rear direction L of the central region S3.

  A wing 3 described later may be provided in the central area S3. Further, a hip flap 4 that swells outward in the width direction W may be provided in the rear side region S2.

  The front edge of the wing 3 is defined by the root of the wing 3 and corresponds to a portion located on the front side of the two portions recessed most inside in the width direction W. The front edge of the wing 3 may define the boundary between the central area S3 and the front side area S1. The rear edge of the wing 3 is defined by the root of the wing 3, and corresponds to a portion located on the rear side of the two portions that are recessed most in the width direction W. The rear edge of the wing 3 may be located between the central area S3 and the rear side area S2. Here, a region between the front end edge of the wing 3 and the rear end edge of the wing 3 in the front-rear direction L is referred to as a “wing region”. In the absorbent article having a wing, the central area S3 is substantially the same area as the wing area. Therefore, it should be noted that the term “central area S3” can be read as “wing area” in the present specification. That is, the central region is a region between the front edge of the wing and the rear edge of the wing in the front-rear direction.

  The absorbent article 1 includes a top sheet 10 directed to the wearer's skin, a back sheet 20 directed to the opposite side of the wearer's skin, and an absorbent core 31 disposed between the top sheet 10 and the back sheet 20. And including. The top sheet 10 faces the wearer's skin during use. The back sheet 20 is directed to the opposite side of the wearer's skin during use. The absorbent core 31 includes an absorbent material that absorbs body fluid, and extends along the front-rear direction L of the absorbent article.

  The top sheet 10 is made of any sheet-like material having a structure that allows liquid to permeate, such as a nonwoven fabric, a woven fabric, a perforated plastic sheet, and a mesh sheet. Either natural fibers or chemical fibers can be used as the woven or non-woven material.

  The back sheet 20 is a liquid-impermeable sheet. As the back sheet 20, a polyethylene sheet, a laminated nonwoven fabric mainly composed of polypropylene, a breathable resin film, a spunbond, a sheet obtained by bonding a breathable resin film to a nonwoven fabric such as spunlace, or the like can be used.

  The absorption core 31 is disposed at least in the central area S3 and the rear side area S2. Further, the absorbent core may extend from the central area S3 to the front side area S1. The absorbent core 31 may be made of an absorbent material that absorbs liquid. The absorption core 31 may be wrapped with a core wrap (not shown). The core wrap should just cover the absorption core 31 at least on the skin surface side than the absorption core 31. As a specific example, the core wrap may include a sheet disposed on the skin surface side from the absorbent core 31 and a sheet disposed on the non-skin surface side from the absorbent core 31.

  The absorbent material constituting the absorbent core 31 can be formed from, for example, hydrophilic fibers, pulp, and superabsorbent polymer (SAP). The core wrap can be composed of, for example, a nonwoven fabric or a tissue sheet. The skin-side sheet and the non-skin-side sheet constituting the core wrap may be composed of the same sheet. As a modification, the absorption core 31 may not be covered with the core wrap. In this case, the absorbent core 31 only needs to be covered by the top sheet 10 and the back sheet 20. The configuration of the absorbent core will be described in detail later.

  The absorbent article 1 has a plurality of compressed portions in which at least the absorbent core 31 is compressed in the thickness direction. The pressing unit includes a pair of first pressing units 81, a pair of second pressing units 82, a pair of third pressing units 83, a first front / rear pressing unit 84, a second front / rear pressing unit 85, and a third front / rear pressing unit. 86 may be included. The compression part should just be the absorption core 31 being compressed by the thickness direction T at least. As for the pressing part of this Embodiment, the surface sheet 10 and the absorption core 31 are compressed in the thickness direction. The pressing part is compressed from the skin facing surface side T1 toward the non-skin facing surface side T2. Therefore, as shown in FIG.3 and FIG.4, the pressing part is dented toward the non-skin opposing surface side T2 from the skin opposing surface side T1. In addition, in another form, the pressing part may be compressed toward the skin opposing surface side T1 from the non-skin opposing surface side T2. The configuration of the pressing unit will be described in detail later.

  The absorbent article 1 may have a second sheet (not shown) disposed between the top sheet 10 and the absorbent core. The second sheet may be a liquid-permeable sheet that transmits liquid such as body fluid. Preferably, the hydrophilicity of the second sheet is higher than the hydrophilicity of the topsheet 10. The second sheet can be made of the same material as the top sheet 10.

  The absorbent article 1 may have a side sheet 15 that covers the outer edge of the top sheet 10. The side sheet 15 covers the outer edge of the top sheet 10 in the width direction W, and extends to the outside in the width direction W than the top sheet 10. In addition, in this embodiment, although the absorbent article 1 has the side sheet 15, the absorbent article 1 does not need to have the side sheet 15. In this case, the top sheet 10 may cover the entire absorbent core. In the present invention, the outer edge is an outer end in the width direction, and the inner edge is an inner end in the width direction.

  The side sheet 15 can be made of the same material as the top sheet 10. However, in order to prevent the body fluid adhering to the top sheet 10 from getting over the side sheet 15 and leaking outside the absorbent article 1 in the width direction W, the side sheet 15 has hydrophobicity or water repellency. It is preferable to have. The side seat 15 may be disposed on the outer edge of the absorbent core, the wing 3 and the hip flap 4 in the width direction W.

  The absorbent article 1 may have an upright leakproof gather 60. The leak-proof gather 60 is located on the skin facing surface side T1 of the topsheet 10, and is configured to be able to stand on the skin facing surface side T1 rather than the topsheet 10 when worn. The leakproof gather 60 includes the side sheet 15 and a leakproof elastic member 61. The leakproof gather 60 includes a contracted portion 62 that stands by contraction of the leakproof elastic member 61, and a first base point portion 63 that is located outside the contracted portion 62 in the width direction W and that serves as a starting point of the contracted portion. And a second base point portion 64 which is located on the outer side in the front-rear direction with respect to the contraction portion 62 and serves as a base point for rising of the contraction portion.

  The side sheet 15 is folded back to the outside in the width direction W at the inner edge of the leakproof gather and laminated in two layers, and a leakproof elastic member 61 is disposed between the two layers of sidesheets. Further, the side sheets 15 laminated in two layers are folded a plurality of times by folding lines extending in the longitudinal direction. The side sheets 15 folded in a plurality of times are not joined to the top sheet 10 at the contraction part 62, but are joined to the top sheet at the first base point part 63 and the second base point part 64. The side sheet 15 is erected such that the side sheet folded a plurality of times is unfolded when the leak-proof elastic member 61 contracts, and the inner edge of the leak-proof gather is at the apex. Therefore, the height at which the leakproof gather rises in the region where the first base point portion 63 is provided is between the inner edge of the first base point portion 63 and the inner edge of the side sheet in the expanded state (the inner edge of the leakproof gather). The distance in the width direction. The first base point portion 63 and the second base point portion 64 are shifted in the width direction W. The first base point portion 63 is located outside the outer edge of the absorbent core 31 in the width direction W. The second base point portion 64 is disposed so as to overlap the absorbent core 31 in plan view.

  As described above, the absorbent article 1 has the wing 3 and the hip flap 4. The wing 3 and the hip flap 4 extend outward in the width direction W from the outer edge of the absorbent core 31 in the central region S3.

  The wing 3 and the hip flap 4 may be configured by stacking the side sheet 15 and the back sheet 20. The wing 3 is configured to be folded back to the back sheet 20 side. The wing 3 is folded back to the non-skin surface side of the crotch portion of the underwear during use.

  The hip flap 4 is located on the rear side of the wing 3 and is provided in the rear side region S2. The hip flap 4 is not folded back during use, and is disposed between the underwear and the wearer's buttocks. In the present embodiment, the hip flap 4 is not provided with an absorbent material. Alternatively, the hip flap 4 may be provided with an absorbent material.

  Then, 80 is demonstrated to the absorption core 31 and a pressing part. The absorbent article 1 of this Embodiment is comprised so that the absorption core 31 may become easy to fit a body with the structure of the absorption core 31 and a pressing part. FIG. 5 is a plan view of the absorbent core 31 as viewed from the skin facing surface side T1. The absorption core 31 may have a plurality of regions with different basis weights. The absorbent core 31 may include at least a high basis weight portion 33, a low basis weight portion 34, and a medium basis weight portion 35. The basis weight of the absorbent material (pulp) in the high basis weight portion 33 is higher than the basis weight of the absorbent material in the middle basis portion 35, and the basis weight of the absorbent material (pulp) in the middle basis weight portion 35 is the absorbent material (pulp) in the low basis weight portion 34. ) Is higher than the basis weight. The high basis weight portion 33 is thicker than the surrounding absorbent core 31 and constitutes a middle high portion 36. The high weighted portion 33 includes a first high weighted portion 331 and a second high weighted portion 332 that are spaced apart in the front-rear direction. The second high weighted portion 332 is located behind the first high weighted portion 331. A first low weighted portion 341 may be disposed between the first high weighted portion 331 and the second high weighted portion 332 in the front-rear direction L.

The basis weight of the first high basis weight portion 331 and the basis weight of the second high basis weight portion 332 may be different or may be positioned. The basis weight of the first high basis weight portion of the present embodiment is 650 g / m ² at the highest portion. The basis weight of the second high basis weight portion 332 is 850 g / m ² at the highest portion. Preferably, the basis weight of the second high weight portion 332 may be higher than the basis weight of the first high weight portion 331. The second high weighted portion 332 is disposed at the center in the front-rear direction L of the central area S3, and body fluid is more easily guided. By increasing the basis weight of the second high weight part 332, the absorption performance of body fluid can be ensured, and the thickness of the second high weight part 332 can be increased to improve the fit. Moreover, since the fabric weight of the 1st high fabric weight part 331 is comparatively low, the fitting property with respect to a body can be improved, ensuring absorption performance with a fabric weight higher than a medium fabric weight part.

  The high basis weight 33 may be disposed at the center of the absorbent core 31 in the width direction W. The outer edge of the high basis weight 33 may be located on the inner side in the width direction W than the outer edge 31 </ b> E of the absorbent core 31. At least a part of the high basis weight (first high basis weight 331 and second high basis weight 332) 33 may be arranged in the central area S3. The high basis weight 33 may extend in the front-rear direction L beyond the central area S3. The center in the front-rear direction L of the high weight portion 33 may be located in front of the center in the front-rear direction L of the absorbent article 1 or may be located in front of the center in the front-rear direction of the central region S3. The center in the front-rear direction L of the high weighted portion 33 is the center in the front-rear direction between the front end edge of the first high weighted portion 331 and the rear end edge of the second high weighted portion 332.

Further, as shown in FIG. 3, the high basis weight portion 33, a through hole 38 penetrating in the thickness direction T to the non-skin-to-facing surfaces of the absorbent core 31 from the skin facing surface of the absorbent article 1 may be formed with a plurality . A plurality of through holes 38 may be formed at intervals in a plan view. By forming the through hole 38 in the high weighted portion 33, even when a large amount of body fluid such as menstrual blood or urine is excreted at a time, the body fluid is drawn into the absorption core 31 and is difficult to overflow. It becomes possible to maintain the dryness of the skin facing surface of the absorbent article and to effectively maintain the good fit and wearing feeling.

  The through hole 38 may be provided on the rear side of the high weighted portion 33 or may be provided in the second low weighted portion 342 of the rear side area S2. The body fluid that flows along the skin depending on the direction of gravity in the sleeping posture can be easily drawn into the absorber.

Between the outer edge 33E of the high weight part 33 and the outer edge 31E of the absorbent core 31, the middle weight part 35 having a lower weight than the high weight part 33 and having a higher weight than the low weight part 34 is disposed. . The medium basis weight part 35 is an area arranged at the outer edge of the absorbent core 31 among areas having different basis weights. In addition, in the structure in which the area | region where a basis weight differs in the outer side edge 31E of the absorption core 31 is provided, it is an area | region with the most extraordinary occupation in the outer side edge 31E. The basis weight of the middle weight portion 35 of the present embodiment is 300 g / m ^2, which is a portion other than the low weight portion 34 and the high weight portion 33, and is disposed in the entire front-rear direction L of the outer edge 31 E of the absorbent core 31. Has been.

  The low weight part 34 includes a first low weight part 341, a pair of second low weight parts 342 located on the rear side of the first low weight part 341, and a pair located on the rear side of the second low weight part 341. The third low weight portion 343 and the front and rear low weight portions 345 may be included. The low basis weight 34 has a lower basis weight and lower rigidity than the middle basis weight 35. Therefore, when a force is applied to the absorbent core 31, the low basis weight part is most easily deformed. Therefore, the low basis weight 34 is deformed to absorb the force, or the low basis weight 34 is a deformation base point of the absorbent core 31.

The basis weight of the low basis weight part 34 may be 150 g / m ² or less, and the basis weight of the low basis weight part of the present embodiment is 100 g / m ² . The low basis weight 34 may be less than 50%, more preferably less than 35%, of the weight of the absorbent core 31 adjacent to the low basis weight 34. By increasing the basis weight difference between the low basis weight portion 34 and its periphery, the force can be locally concentrated on the low basis weight portion 34 when a force is applied to the absorbent core 31. Thereby, as will be described later, the low basis weight portion is deformed, and the absorbent core 31 can be fitted to the body more.

  The low weight part 34, the middle weight part 35, and the high weight part 33 may be defined as follows. An area having the highest ratio in the outer edge 31 </ b> E of the absorbent core 31 is referred to as a center weight 35. A portion having a thickness of 20% or more with respect to the thickness of the medium weight portion 35 in a cross-sectional view and extending in the plane direction is referred to as a high weight portion 33. The boundary between the high weighted portion 33 and the middle weighted portion 35 defines the center of the thickness direction T between the portion extending in the planar direction of the middle weighted portion 35 and the portion extending in the planar direction of the high weighted portion 33, and the thickness direction A portion thicker than the center of T is referred to as a high weighted portion 33, and a portion thinner than the center in the thickness direction T is referred to as a medium weighted portion 35. Similarly, in a cross-sectional view, the portion having a thickness of 20% or more with respect to the thickness of the medium weight portion 35 and extending in the planar direction is defined as a low weight portion 34. The boundary between the low weight portion 34 and the middle weight portion 35 defines the center in the thickness direction of the portion extending in the planar direction of the middle weight portion 35 and the portion extending in the planar direction of the low weight portion 34, and the thickness direction T A portion thicker than the center of each is referred to as a medium weight portion 35, and a portion thinner than the center in the thickness direction T is referred to as a low weight portion 34.

  The first low weight portion 341 constitutes a “low weight portion” according to claim 1 of the present application. The first low weight portion 341 includes a first region 341A and a second region 341B. The first region 341 </ b> A is provided between the first high weighted portion 331 and the second high weighted portion 332. That is, the first region 341 </ b> A is a region sandwiched between the first high weighted portion 331 and the second high weighted portion 332. The second region 341B is provided on the outer side in the width direction W than the first region 341A. In other words, the first region 341 </ b> A is a region located on the outer side in the width direction than the first high weighted portion 331 and the second high weighted portion 332. In the configuration in which the outer edge of the first high weighted portion 331 and the outer edge of the second high weighted portion 332 are shifted, the width direction is greater than the outer edge of the high weighted portion 33 located inside the width direction W. The area outside W is the second area 341B. The second region 341B is substantially continuous with the first region 341A. In the present invention, the term “substantially continuous” refers not only to a configuration in which the first region 341A and the second region 341B are physically in contact, but also to a configuration in which the first region and the second region are related to each other. It is a concept that includes. That is, the first region 341A and the second region 341B may be separated from each other. In the present embodiment, the outer edge of the first region 341A and the inner edge of the second region 341B are connected.

  The length of the first region 341A in the front-rear direction L may be 5 mm or more and less than 25 mm, and the length of the second region 341B in the front-rear direction L may be 5 mm or more and less than 25 mm. In the configuration in which the length in the front-rear direction L of the first region 341A is changed, the length in the front-rear direction L at the center in the width direction W of the first region 341A may be 5 mm or more. In the configuration in which the length in the front-rear direction L of the second region 341B is changed, the length in the front-rear direction L at the inner edge in the width direction W of the second region 341B may be 5 mm or more. Further, the length of the first region 341A in the front-rear direction L and the length of the second region 341B in the front-rear direction L may be equal to or greater than the thickness of the midweight portion 35 of the absorbent core 31. When the length of the first region 341 </ b> A in the front-rear direction L is 5 mm or more, the space between the first high weighted portion 331 and the second high weighted portion 332 is easily bent along the body. When the length of the first region 341A in the front-rear direction L is less than 5 mm, the first region 341A is bent between the first high weighted portion 331 and the second high weighted portion 332, but may be difficult to bend along the body. Moreover, when the length of the first region 341A in the front-rear direction L is less than 25 mm, it is possible to secure fit to the excretion opening and suppress leakage. More preferably, the upper limit of the length of the first region 341 </ b> A in the front-rear direction L may be shorter than twice the thickness of the high weight portion 33. By being 2 times or less with respect to the thickness of the high fabric weight part 33, the clearance gap between an excretion opening | mouth and an absorbent article can be reduced, and a leak can be suppressed.

  The first region 341A and the second region 341B may extend while being inclined with respect to the width direction W. The first region 341 </ b> A and the second region 341 </ b> B have convex curved shapes that extend outward in the front-rear direction L in plan view. The convex shape may be a convex shape that bulges toward the front side, or may be a convex shape that bulges toward the rear side. At least a part of the first region 341A may be located in front of the center in the front-rear direction of the central region S3.

  At least a portion of the first low weight portion 341 is provided in the central area S3. The 1st area | region 341A of the 1st low weight part 341 should just be provided in central area S3. The second region 341B may also be provided in the central region S3. At least a part of the first region 341A of the first low weight portion 341 may be located in front of the center in the front-rear direction L of the central region S3. The first low weight portion 341 extends from the outer edge 31 </ b> E of the absorbent core 31 inward in the width direction W and is inclined with respect to the width direction W. In the first low weight portion 341 of the present embodiment, the first region 341A and the second region 341B are continuous, and both regions extend inward in the width direction W and incline with respect to the width direction W. ing. The second region 341B extends while inclining with respect to the width direction and reaches the outer edge of the absorbent core. The first low weight portion 341 is formed over the entire area in the width direction W of the absorbent core 31. The first low weight portion 341 may extend inward from the outer edge 33 </ b> E of the high weight portion 33. The center of the first low weight portion 341 in the width direction W is disposed between the first high weight portion 331 and the second high weight portion 332, and the side portion of the first low weight portion 341 in the width direction W is a medium weight. Arranged between the portions 35. In addition, in another form, the 1st low weight part 341 may be spaced apart in the width direction W, and may be arrange | positioned by a pair.

  The second low weight portion 342 is separated from the first low weight portion 341 in the front-rear direction L, and is provided on the rear side of the first low weight portion 341. The second low weight portion 342 may be located on the rear side of the central area S <b> 3, and may be located on the rear side of the rear end edge of the wing 3. The second low weight portion 342 may extend from the outer edge 31E of the absorbent core 31 inward in the width direction W and inclined with respect to the width direction W.

  The third low weight portion 343 is separated from the second low weight portion 342 in the front-rear direction L, and is provided on the rear side of the second low weight portion 342. The third low weight portion 343 may be disposed in the rear side region S2. The second low weight portion 342 may extend from the outer edge 31E of the absorbent core 31 inward in the width direction W and inclined with respect to the width direction W.

  Here, “inclination with respect to the width direction W” from the first low weight portion to the third low weight portion may be an angle with respect to the width direction W of less than 45 degrees. By “inclining with respect to the width direction W”, the first low weight portion 341 to the third low weight portion 343 are arranged over a certain range in the front-rear direction L, and over a certain range in the front-back direction L. The low basis weight 34 can absorb the force and transmit the force. The first low weight portion 341 to the third low weight portion 343 may extend to the front side toward the inner side in the width direction W, or may extend to the rear side toward the inner side in the width direction W. Moreover, since the 3rd low weight part 343 extends in the width direction W from the 1st low weight part 341, and does not follow the front-back direction (since the angle with respect to the front-back direction is 45 degree | times or more), the force which goes to the inner side of the width direction The area sandwiched by the low basis weight portion changes in the front-rear direction when the basis weight part is deformed from the base point, and a portion where the height of the bulge tends to be higher and a portion where the height tends to be lower are formed adjacent to each other in the front-rear direction. Is done. The absorbent core is easily raised three-dimensionally, more deformation base points are formed, and it is easier to follow the unevenness of the body.

  The front-rear low basis weight 345 is provided in the rear side region S2. The front and rear low basis weight 345 may straddle the center of the absorbent core 31 in the width direction W. The front and rear low basis weight portions 345 are provided along the front and rear direction at the center in the width direction W of the absorbent core 31. The front-rear low weight part 345 is provided on the rear side of the second high weight part 332 and on the rear side of the central area S3. The front and rear low basis weight portions 345 may extend rearward from the rear end edge of the second high basis weight portion 332.

  Next, the pressing unit will be described. The first pressing part 81 overlaps at least a part of the first low weight part 341 and extends along the first low weight part 341. The aspect in which the first pressing portion 81 extends along the first low weight portion 341 is not only the configuration in which the direction in which the first low weight portion 341 extends and the direction in which the first pressing portion 81 extends are the same. Including a configuration in which the angle formed by both directions is less than 5 degrees. Moreover, the direction where the 1st low weight part 341 extends and the direction where the 1st pressing part 81 extend become a line which connects the width center of the said part in the structure which has a fixed width | variety. The 1st pressing part 81 comprises the "pressing part" of Claim 3 and Claim 10 of this application, overlaps at least one part of 2nd area | region 341B of the 1st low weight part 341, and follows 2nd area | region 341B. May be provided. The outer edge 81E of the first pressing part 81 may be located inside the outer edge 31E of the absorbent core 31, and the inner edge 81I of the first pressing part 81 may be terminated in the first low weight part 341. . The 1st pressing part 81 may be located inside the width direction W rather than the outer edge 36E of the middle-high part 36. FIG. In the configuration in which the middle and high portions are configured by the plurality of high weight portions, the outer edge 36E of the middle and high portions 36 is the outer edge of the high weight portion that is located on the outermost side in the width direction.

  Further, the second pressing portion 82 overlaps at least a part of the second low weight portion 342 and extends along the second low weight portion 342. The outer edge 82E of the second pressing portion 82 may be located inside the outer edge 81E of the absorbent core 31, and the inner edge 82I of the second pressing portion 82 is more than the inner edge 342I of the second low weight portion 342. It may be located outside the width direction W. The third pressing portion 83 overlaps at least a part of the third low weight portion 343 and extends along the third low weight portion 343. The outer edge 83E of the third pressing portion 83 may be positioned inside the outer edge 31E of the absorbent core 31, and the inner edge 83I of the third pressing portion 83 is more than the inner edge 343I of the third low weight portion 343. It may be located outside the width direction W.

  The first front / rear pressing part 84 is provided in front of the first low weight part 341. The first front / rear pressing part 84 extends in the front / rear direction L. At least a part of the first front-rear pressing part 84 is provided in the central area S3. The second front / rear pressing portion 85 is provided between the first low weight portion 341 and the second low weight portion 342 in the front / rear direction L. The second front / rear pressing part 85 extends in the front / rear direction L. At least a part of the second front-rear pressing part 85 is provided in the central area S3. The 2nd front-back pressing part 85 is comprised by two pressing parts spaced apart in the front-back direction. The third front-rear pressing portion 86 is provided between the second low-weight portion 342 and the third low-weight portion 343 in the front-rear direction L. The third front / rear pressing part 86 extends in the front / rear direction L. The 3rd front-back pressing part 86 is provided in back side area S2.

  The first pressing unit 81, the second pressing unit 82, the third pressing unit 83, the first front / rear pressing unit 84, the second front / rear pressing unit 85, and the third front / rear pressing unit 86 are paired with an interval in the width direction W. Is provided. The 1st pressing part 81, the 2nd pressing part 82, the 3rd pressing part 83, the 1st back and forth pressing part 84, the 2nd back and forth pressing part 85, and the 3rd back and forth pressing part 86 are the centers of the width direction W of an absorptive article. It is line symmetric with respect to a center line extending in the front-rear direction L.

  Next, a deformation mode at the time of wearing the absorbent article 1 configured as described above will be described based on FIGS. 6 to 8. FIG. 6 is a diagram illustrating a deformed state of the absorbent article in a plan view. FIG. 6A shows a state before deformation, and FIG. 6B shows a state after deformation. FIG. 7 is a diagram schematically showing a wearing state of the absorbent article in a cross section at the center in the width direction of the body. FIG. 8 is a diagram showing a deformed state of the absorbent core in plan view. FIG. 8A shows a state before the deformation, and FIG. 8B shows a state after the deformation.

  In a state where the absorbent article is worn, the central region S3 is sandwiched between the legs of the wearer and receives a force from the outside in the width direction W toward the inside in the width direction W. At this time, the first low weight portion 341 provided in the central region S3 is deformed and absorbs the force, and the first pressing portion 81 that overlaps the first low weight portion 341 has a force toward the inner side in the width direction W. To communicate. Therefore, as shown in FIG.6 (b), the absorption core 31 pinched | interposed by the 1st pressing part 81 in the width direction W is pressed inside the width direction W, and it protrudes toward a wearer's excretion opening | mouth. Since the 1st low weight part 341 inclines with respect to the width direction W, and the 1st pressing part 81 is extended along the 1st low weight part 341, the field which transmits power by the 1st pressing part 81 is It occupies a certain range in the front-rear direction L. Therefore, the absorption core 31 is pressed from the outer side in the width direction W to the inner side in the width direction W over a certain range in the front-rear direction in the central region S3, and rises toward the wearer's excretion opening. Therefore, it can adhere to a wearer's excretion opening | mouth and can suppress a leak.

  The first low weight portion 341 and the second low weight portion 342 are provided at intervals in the front-rear direction, and a plurality of deformation base points of the absorbent core 31 are formed in the front-rear direction L. Therefore, as shown in FIG. 7, the absorption core 31 is easily arranged along the roundness of the body. Since the deformation base point by the first low weighted portion 341 is formed in the central area S3, even if the absorbent core 31 rises in the central area S3, it becomes easy to bend by the deformation base point, and the absorbent core 31 extends across the excretory opening. It can be placed along the body to prevent leakage.

  In addition, since the first low weighted portion 341 extends inward in the width direction W from the outer edge 36E of the middle and high portion 36, a force toward the inner side in the width direction W acts on the middle and high portion 36 in the central region S3. In the region S3, the absorbent core 31 is further raised and is easily disposed along the body.

  Since the first low weighted portion 341 is provided between the first high weighted portion 331 and the second high weighted portion 332 constituting the middle and high portion 36, the first high weighted portion 341 serves as a base point and the first high weighted portion 341 is provided. The part 331 and the second high weight part 332 can be deformed so as to follow the body. The absorption core 31 in the central area S3 can be arranged along the body more, and leakage can be suppressed.

  Since the first region 341A of the first low weight portion 341 is provided in the central region (wing region) S3, the first high weight portion 331 and the second high weight portion 332 are divided by the first region 341A, and the central region A deformation base point that bends in the front-rear direction L can be provided in S3. Therefore, even if the absorption core 31 has a shape that rises at the high basis weight portion 33, the absorption core 31 is easily bent by the deformation base point, and the absorption core 31 in the central region S3 can be arranged along the body to suppress leakage. Generally, the center of the wing area is attached so that the vaginal opening hits, and the area in front of the vaginal opening swells in the vicinity of the pubic region, and is curved in the cross section along the front-rear direction L It is. By providing the deformation base point of the first region 341A in front of the center in the front-rear direction of the central region S3, the absorbent core 31 can be placed along the region near the vaginal opening and the region in front of the vaginal opening. , More fit can be improved. As a result, it is possible to reduce the gap between the body and the absorbent article that is likely to occur at a position closer to the buttocks than the excretory opening contact part (vaginal opening), and the fit can be enhanced. By providing the deformation base point on the front side of the vaginal opening, the absorption core can be deeply and flexibly attached to the vaginal opening covered with the labia, and the fit can be further improved. Moreover, when the length of the first region 341A in the front-rear direction L is 5 mm or more, it is easier to obtain the effect of dividing the first high weighted portion 331 and the second high weighted portion 332.

  The second region 341 </ b> B of the first low weight portion 341 extends while being inclined with respect to the width direction W. When the wearer walks with the absorbent article 1 fitted to the body, a twisting force is applied. At this time, the force in the twisting direction can be absorbed by the pair of second regions 341B. FIG. 8 is a view showing a modification of the absorbent core. When the wearer walks out one foot at a time, the central area S3 sandwiched between both legs moves so as to swing left and right with the front side area S1 as a base point. At this time, the pair of second regions 341 </ b> B extend from the outer edge 31 </ b> E of the absorbent core 31 while being inclined with respect to the width direction W. Can be absorbed. By absorbing the force in the twisting direction, it is possible to suppress deformation of the high weight portion adjacent to the second region and maintain fit to the body.

  The first region 341A and the second region 341B are substantially continuous, and deformation of the first region 341A can be suppressed by absorption of force by the second region 341B. Therefore, the first high weighted portion 331, the second high weighted portion 332, and the first region 341A are not easily deformed by the force in the twisting direction, and can continue to fit to the body. When the first region extends with an inclination with respect to the width direction and continues to the second region, the force in the twisting direction can be absorbed also by the first region. Therefore, it is easier to maintain the fit of the first high weighted portion 331 and the second high weighted portion 332.

  When worn (when pulling up the underwear) and when pinched by the legs during wearing, the force toward the inside in the width direction is applied to the first high weight part and the second high weight part through the first region and the second region. Works. When the first region and the second region are convex curved shapes extending outward in the front-rear direction in plan view, the force received from the high weight portion is dispersed when a twisting force is applied. Therefore, a gentle convex shape can be realized and fit to the body can be maintained without a sense of incongruity.

  Since the 1st pressing part 81 is located inside the width direction W rather than the outer edge 36E of the middle-high part 36, the 1st pressing part 81 tends to transmit force to the middle-high part 36 more. In the central area S3, the absorbent core 31 is more prominent and is easily disposed along the body.

  Since the 1st pressing part 81 is arrange | positioned in the 1st low weight part 341, the shape collapse by the deformation | transformation of the 1st low weight part 341 can be suppressed, and the deformation | transformation of the absorption core 31 can be continued. In particular, the second region 341B of the first low weight portion 341 is increased in rigidity by the first pressing portion 81, the second region can be repeatedly deformed, and the force in the twisting direction can be continuously absorbed.

  Moreover, the 1st pressing part 81 is arrange | positioned only inside the outer edge of the 1st low weight part 341 by planar view. That is, the 1st pressing part is not provided beyond the 1st low weight part 341, but is terminated in the 1st low weight part. When the wearer's leg hits the outer edge 31E of the absorbent core 31, the first low weight portion 341 is deformed before the absorbent core 31 is pressed by the first pressing portion 81, and the absorbent core 31 is convex. It is easy to deform. The first squeezing portion 81 having a relatively high rigidity is difficult to directly hit the leg, and deterioration of the wearing feeling can be suppressed. It can suppress that the 1st pressing part 81 presses the absorption core 31 in the 1st low weight part 341, and presses the absorption core 31 in the area | region beyond the 1st low weight part 341. Moreover, when the 1st pressing part 81 reaches | attains the area | region where a fabric weight is higher than the 1st low fabric weight part 341, while absorbing the deformation | transformation by 2nd area | region 341B, it transmits the force of the twist direction to a high fabric area area, There is a possibility that the force in the twisting direction cannot be absorbed by the second region. Since the 1st pressing part 81 terminates in the 1st low weight part 341, and has not reached the middle weight part 35 and the high weight part 33, it can absorb the power of the twist direction by deformation of the 2nd field 341B, etc. It is possible to suppress the propagation of the twisting force to the region. In addition, the outer edge in this invention is the concept containing the edge (outer edge and inner edge) of the width direction, and the edge (front end edge and rear end edge) of the front-back direction.

  A first front / rear pressing part 84 is provided in front of the first low weight part 341, and a second front / rear pressing part 85 is provided between the first low weight part 341 and the second low weight part 342. Yes. When a force inward in the width direction W is applied, the absorbent core 31 can be pressed inward in the width direction W via the first front / rear squeezed portion 84 and the second front / rear squeezed portion 85, so It becomes easy to rise. Moreover, the area | region in which the 1st low weight part 341 was provided and the area | region in which the 2nd low weight part 342 was provided can be divided by the 2nd front-back pressing part 85. Therefore, the region between the first low weight per unit area 341 and the second low per unit area 342 and the region behind the second low per unit area 342 are deformed so as to follow the body.

  The rear region S2 of the absorbent article 1 is disposed to face the wearer's buttocks. A second low weight portion 342 is provided in the rear side area S2. The deformation | transformation base point by the 2nd low weight part 342 is formed in the area | region arrange | positioned facing the said collar part, and the absorption core 31 can be arrange | positioned along the roundness of a collar part.

  The second low weight portion 342 may be provided in a pair with a gap in the width direction W on the rear side of the central area S3. That is, the pair of second low weight portions 342 are not continuous in the width direction W unlike the first low weight portions 341. The collar portion is also rounded in the cross section along the width direction W. If a deformation base point that is continuous in the width direction W is formed in the absorption core 31 in the rear side region S2, a part of the absorption core 31 may be separated from the body. Since the 2nd low weight part 342 is arrange | positioned at intervals in the width direction W, each area | region in which the 2nd low weight part 342 was provided, and the area | region between these become easy to follow a body, respectively.

  A second pressing portion 82 is provided so as to overlap at least a part of the second low weight portion 342. The second low weight portion 342 is deformed and absorbs the force, and the second pressing portion 82 that overlaps the second low weight portion 342 transmits the force toward the inner side in the width direction W. Therefore, the absorption core 31 is pressed from the outer side in the width direction W to the inner side in the width direction W, and the absorption core 31 rises toward the wearer's body.

  Since the second low weight portion 342 is inclined with respect to the width direction W and the second pressing portion 82 extends along the second low weight portion 342, the region where the force is transmitted by the second pressing portion 82 is It occupies a certain range in the front-rear direction L. Therefore, the absorption core 31 is pressed to the inner side in the width direction W over a certain range in the front-rear direction L in the rear side region S2, and rises toward the wearer's crack. Therefore, it adheres to a wearer's crack and can suppress a leak.

  The 2nd pressing part 82 is arrange | positioned only inside the outer edge of the 2nd low weight part 342 by planar view. That is, the 2nd pressing part 82 is not provided exceeding the 2nd low weight part 342. As shown in FIG. Since the 2nd pressing part 82 is arrange | positioned in the 2nd low weight part 342, the deformation | transformation by the deformation | transformation of the 2nd low weight part 342 can be suppressed, and the deformation | transformation of the absorption core 31 can be continued. Further, when the wearer's leg hits the outer edge 31E of the absorbent core 31, the second low weight portion 342 is deformed before the absorbent core 31 is pressed by the second squeezed portion 82, and the absorbent core 31 is Easy to deform into a convex shape. The second squeezing part 82 having relatively high rigidity is difficult to directly hit the leg, and deterioration of the wearing feeling can be suppressed.

  A third low weight portion 343 is also provided in the rear region S2. A deformation base point by the second low weight portion 342 and the third low weight portion 343 is formed in a region arranged to face the collar portion, and the absorbent core 31 is more likely to follow the roundness of the collar portion. Further, the first low weight portion 341, the second low weight portion 342, and the third low weight portion 343 are provided at intervals in the front-rear direction L. In the absorbent article, three deformation base points are formed at intervals in the front-rear direction L. Therefore, the absorption core 31 becomes easier to follow the roundness of the body in the cross section along the front-rear direction.

  The third low weight portion 343 may be provided in front of the outer edge 4E of the hip flap 4. The outer edge of the hip flap is the position of the maximum width of the hip flap 4. The position of the maximum width of the hip flap 4 is generally arranged on the rear side of the tear in order to suppress leakage of body fluid that has flowed through the tear. Since the third low-weighted portion 343 is provided in front of the outer edge 4E of the hip flap 4, a deformation base point is formed in the region hitting the rupture, and the absorbent core 31 is rounded at a position near the excretion opening. Easy to follow. In general, a crack is a narrow region. If the basis weight of the absorbent core 31 that hits the crack is high, a gap may easily occur between the crack and the absorbent article. By disposing the third low weight portion in the region that hits the crack and lowering the weight of the absorbent core 31, it is possible to make the absorbent element adhere to the body while deforming the absorbent core 31 in a convex shape toward the body. Become.

  In addition, at the position of the maximum width of the hip flap 4, the deformation base point by the third low weight portion or the like is not provided, and the absorbent core 31 that is deformed in a convex shape toward the body is brought into close contact with the body and the underwear is attached. And it can arrange | position so that a body may be covered with an absorbent article.

  A third pressing portion 83 is provided so as to overlap at least a part of the third low weight portion 343. The third low weight portion 343 is deformed and absorbs the force, and the third pressing portion 83 that overlaps the third low weight portion 343 transmits the force toward the inner side in the width direction W. Therefore, even if it passes through a 3rd pressing part, the absorption core 31 is pressed inside the width direction W from the outer side of the width direction W, and an absorption core protrudes toward a wearer's body.

  Since the third low weight portion 343 is inclined with respect to the width direction W and the third pressing portion 83 extends along the third low weight portion 343, the region where force is transmitted by the third pressing portion 83 is It occupies a certain range in the front-rear direction L. Therefore, the absorbent core 31 is pressed from the outside in the width direction W to the inside in the width direction W over a certain range in the front-rear direction in the rear side region.

  The 3rd pressing part 83 is arrange | positioned only inside the outer edge of the 3rd low weight part 343 by planar view. That is, the third pressing part 83 is not provided beyond the third low weight part 343. Since the 3rd pressing part 83 is arrange | positioned in the 3rd low weight part 343, the deformation | transformation by the deformation | transformation of the 3rd low weight part 343 can be suppressed, and the deformation | transformation of the absorption core 31 can be continued. Moreover, when a wearer's leg contacts the outer edge 31E of the absorption core 31, the 3rd low weight part 343 deform | transforms before pressing the absorption core 31 by the 3rd pressing part 83, and the absorption core 31 is Easy to deform into a convex shape. The 3rd pressing part 83 with comparatively high rigidity cannot hit a leg directly, and can suppress the deterioration of a wearing feeling.

  A front and rear low weight portion 345 is provided in the rear side region S2. As shown in FIGS. 6 and 7, the front / rear low weight portion 345 extends in the front / rear direction L across the center of the absorbent core 31 in the width direction W, and therefore, the front / rear low weight portion 34 is formed at the top of the absorbent core 31. The convex deformation is formed extending in the front-rear direction. When a force toward the inner side in the width direction W is applied to the rear side region S2, the absorbent core 31 is deformed with the front and rear low weighted portion 345 as a base point. Specifically, the absorbent core 31 is easily deformed into a convex shape having the front and rear low-weight parts 345 as vertices in a cross section along the width direction W. Since the peak of the convex shape of the absorbent core 31 is located at the center of the absorbent core 31 in the width direction W, the absorbent core 31 is easily arranged along the wearer's crack. Since the front and rear low weight portion 345 is located on the rear side of the second high weight portion 332, the front and rear low weight portion 345 is set at the apex while maintaining the fit by the thickness of the absorbent core 31 by the second high weight portion 332. Deformation can be realized, and the fit to both the vaginal opening and the rupture can be improved.

  The front and rear low weight portion 345 may straddle the rear edge of the second low weight portion 342 in the front and rear direction L. When a force is applied from the outside in the width direction W to the inside in the width direction W when worn, the second low weight portion 342 is deformed, absorbs the force, and further receives the force, the second low weight portion 342 Also, the inner region in the width direction W is raised on the wearer side. At this time, since the front and rear low weight parts are provided in the center of the absorbent core 31 in the width direction W, the inner region in the width direction W is convex with the front and rear low weight parts 345 as vertices. Easy to deform. Since the front and rear low weight portion 345 extends across the rear end edge of the second low weight portion 342, the convex deformation with the front and rear low weight portion 345 as the vertex is an area where the second low weight portion 342 is provided. To a region behind the second low weight portion 342.

  The rear end edge of the front and rear low weight portion 345 may be provided in front of the third low weight portion 343. It is preferable that the region on the rear side from the crack generally has little swelling of the buttock and the absorbent core 31 is applied in a flat state. Since the front and rear low weight portion 345 is provided in front of the third low weight portion 343, the convex deformation by the front and lower low weight portion 345 is suppressed from being formed on the rear side of the crack, The absorption core 31 in the rear region is more likely to be flat.

  A third front / rear pressing part 86 is provided between the second low weight part 342 and the third low weight part 343. When a force directed inward in the width direction W is applied, the absorbent core 31 is pressed inward in the width direction W via the third front / rear squeezed portion 86, and the absorbent core 31 is more likely to rise to the body side. Moreover, the area | region in which the 2nd low weight part 342 was provided, and the area | region in which the 3rd low weight part 343 was provided can be divided by the 3rd front-back pressing part 86. FIG. Therefore, the region between the second low weight portion 342 and the third low weight portion 343 and the region behind the third low weight portion 343 are deformed so as to follow the body.

  Of the first low weight portion 341, the second low weight portion 342, and the third low weight portion 343, at least the first low weight portion 341 is disposed in a region that does not have a fold line in order to fold the absorbent article 1 in the front-rear direction. May be. In other words, the first low weighted portion 341 does not have to overlap the fold line in plan view. The fold line is a line for folding the absorbent article in the front-rear direction, and is along the width direction. The first region 341A of the first low weight portion 341 may be disposed in a region having no fold line, or the second region 341B of the first low weight portion 341 is disposed in a region having no fold line. Alternatively, both the first region 341A and the second region 341B may be arranged in a region having no fold line. The first low weight portion is suppressed from being difficult to be deformed by folding, and the first low weight portion is easily deformed when sandwiched between the legs of the wearer. The fold line may be a fold line that is folded together with a packaging sheet that individually wraps the absorbent article, or may be a fold line for folding only the absorbent article 1.

  The first base portion 63 of the leakproof gather 60 may be disposed outside the outer edge 31E of the absorbent core 31 in the width direction W in the central region S3. The region inside the outer edge 31E of the absorbent core 31 in the central region S3 is deformed by the first low weight portion 341, and the region outside the outer edge of the absorbent core 31 in the central region S3 is the first low weight portion. The position in the width direction W is easily stabilized without being deformed by 341. The position of the first base portion 63 in the width direction W is stabilized, and the rising base point of the leakproof gather 60 is stabilized.

  The second base point portion 64 of the leak-proof gather 60 may be disposed in a region overlapping the absorbent core 31 in the front side region S1 and the rear side region S2. The second base point portion 64 of the front side region S1 and the second base point portion 64 of the rear side region S2 are located on the inner side in the width direction W than the first base point portion 63 of the central region S3. Due to the contraction of the contraction portion 62, the absorbent core 31 is easily deformed so that the second base point portion 64 of the front side region S1 and the second base point portion 64 of the rear side region S2 approach each other in the front-rear direction. In the cross section along the front-rear direction L, the absorption core 31 is deformed into a curved shape, and the absorption core 31 is easily arranged along the roundness of the body. Moreover, since the 1st base point part 63 is located in the outer side of the width direction W rather than the 2nd base point part 64, the standup height of the leak-proof gather 60 is ensured in center area S3, and a side leak can be suppressed more.

  In the stretched state of the absorbent article, in the central region S3, the distance in the width direction W between the apex of the contraction portion 62 (inner edge of the contraction portion) and the second base point portion 64 is arranged with the middle and high portions sandwiched in the width direction. It may be ½ times or more of the distance between the pair of front and rear compressed parts. Specifically, the pair of front and rear squeezing parts arranged across the middle and high part in the width direction includes a first front and rear squeezing part 84 and a second high weighting part 332 arranged across the first high weight part 331. It is the 2nd front-back pressing part 85 arrange | positioned on both sides. A space between the pair of front and rear compressed parts arranged with the middle and high parts sandwiched in the width direction is a region deformed into a convex shape by being sandwiched between the legs of the wearer. The height of the contraction portion rising from the first base point portion 63 is the same as the height of the absorbent core 31 deformed into a convex shape or higher than the height of the absorbent core 31. Therefore, side leakage can be prevented by the leakproof gather 60. Further, also in the front side area S1 and the rear side area S2, the distance in the width direction W between the apex of the contraction portion 62 (inner edge of the contraction portion) and the second base point portion 64 is arranged with the middle and high portions sandwiched in the width direction. It may be ½ times or more of the distance between the pair of front and rear compressed parts 84 and 85, or may be ½ times or more of the distance between the pair of first front and rear compressed parts 84 extending in the front and rear direction in the front side region. And it may be 1/2 times or more with respect to the distance between the pair of third front and rear pressing parts 86 extending in the front and rear direction in the rear side region. The height of the contraction portion that rises from the second base point portion is the same as or higher than the height of the absorbent core 31 deformed into a convex shape.

  Although the present invention has been described in detail using the above-described embodiments, it is obvious to those skilled in the art that the present invention is not limited to the embodiments described in this specification. The present invention can be implemented as modified and changed modes without departing from the spirit and scope of the present invention defined by the description of the scope of claims. Therefore, the description of the present specification is for illustrative purposes and does not have any limiting meaning to the present invention.

  For example, in the above-described embodiment, the central area S3 is synonymous with the wing area, but in other forms, the central area S3 may be defined by the middle and high portions. Specifically, the central region may be a region between the front end edge of the middle-high portion and the rear end edge of the middle-high portion in the front-rear direction. In the configuration in which a plurality of middle and high parts are provided as in the absorbent article of the present embodiment, the front edge of the middle and high part located at the frontmost side and the rear edge of the middle and high part located at the rearmost side It may be an area between. According to such a configuration, it is possible to fit the body part having a relatively large thickness to the body and reduce leakage.

1: Absorbent article 10: Top sheet 15: Side sheet 20: Back sheet 31: Absorbing core 33: High weighted portion 331: First high weighted portion 332: Second high weighted portion 34: Low weighted portion 341: First low weight Weight area (low weight area)
341A: 1st area | region 341B: 2nd area | region 342: 2nd low weight part 343: 3rd low weight part 345: Front and back low weight part 35: Middle weight part 36: Middle high part 38: Through-hole 60: Leak-proof gather 61: Leak-proof elastic member 62: contraction part 63: first base part (base part)
64: Second base point (base point)
81: 1st pressing part (pressing part)
82: 2nd pressing part 83: 3rd pressing part 84: 1st front-rear pressing part 85: 2nd front-rear pressing part 86: 3rd front-rear pressing part S1: Front side area S2: Rear side area S3: Central area L: Front-back direction T: Thickness direction T1: Skin facing surface side T2: Non-facing skin surface side W: Width direction

Claims (11)

The front-rear direction and the width direction orthogonal to each other;
An absorbent core;
A wing that extends outward in the width direction from the outer edge of the absorbent core in the width direction and can be folded back during use;
An absorbent article having a wing region that is a region between a front edge of the wing and a rear edge of the wing in the front-rear direction ,
The absorbent core has a high weight per unit, a middle weight per unit located on the outer side in the width direction than the high per unit area, and a lower per unit weight than the high per unit area, and a low per unit weight than the middle per unit part. A weight per unit,
The high weighted portion has a first high weighted portion and a second high weighted portion that are spaced apart in the front-rear direction,
The low weight part is a first region provided between the first high weight part and the second high weight part,
Anda first region and coupled pair of the second region on the outside of the width direction than the first region,
The first region is provided in the wing region,
The second region extends obliquely with respect to the width direction and reaches the outer edge of the absorbent core ;
The low weight portion has a front and rear low weight portion that extends in the front and rear direction across the center of the absorbent core in the width direction,
The said front-and-rear low fabric weight part is an absorbent article provided in the back side rather than the said 2nd high fabric weight part, and the said wing area.   The front-rear direction and the width direction orthogonal to each other;
  An absorbent core;
  A wing that extends outward in the width direction from the outer edge of the absorbent core in the width direction and can be folded back during use;
  An absorbent article having a wing region that is a region between a front edge of the wing and a rear edge of the wing in the front-rear direction,
  The absorbent core has a high weight per unit, a middle weight per unit located on the outer side in the width direction than the high per unit area, and a lower per unit weight than the high per unit area, and a low per unit weight than the middle per unit part. A weight per unit,
  The high weighted portion has a first high weighted portion and a second high weighted portion that are spaced apart in the front-rear direction,
  The low weight part is a first region provided between the first high weight part and the second high weight part,
A pair of second regions connected to the first region outside the first region in the width direction, and
  The first region is provided in the wing region,
  The second region extends obliquely with respect to the width direction and reaches the outer edge of the absorbent core;
  A compressed portion in which the absorbent core is compressed in the thickness direction is formed,
  The said pressing part is an absorbent article which has overlapped at least one part of the said 2nd area | region. The absorptive article according to claim 2 in which said pressing part has terminated in said low basis weight part. The front-rear direction and the width direction orthogonal to each other;
An absorbent core;
A wing that extends outward in the width direction from the outer edge of the absorbent core in the width direction and can be folded back during use;
An absorbent article having a wing region that is a region between a front edge of the wing and a rear edge of the wing in the front-rear direction,
The absorbent core has a high weight per unit, a middle weight per unit located on the outer side in the width direction than the high per unit area, and a lower per unit weight than the high per unit area, and a low per unit weight than the middle per unit part. A weight per unit,
The high weighted portion has a first high weighted portion and a second high weighted portion that are spaced apart in the front-rear direction,
The low weight part is a first region provided between the first high weight part and the second high weight part,
A pair of second regions connected to the first region outside the first region in the width direction, and
The first region is provided in the wing region,
The second region extends obliquely with respect to the width direction and reaches the outer edge of the absorbent core;
A plurality of through-holes penetrating in the thickness direction from the skin facing surface of the absorbent article to the non-skin facing surface of the absorbent core are formed in the region where the first high weighted portion and the second high weighted portion are provided. and is, the absorbent article. The front-rear direction and the width direction orthogonal to each other;
An absorbent core;
A wing that extends outward in the width direction from the outer edge of the absorbent core in the width direction and can be folded back during use;
An absorbent article having a wing region that is a region between a front edge of the wing and a rear edge of the wing in the front-rear direction,
The absorbent core has a high weight per unit, a middle weight per unit located on the outer side in the width direction than the high per unit area, and a lower per unit weight than the high per unit area, and a low per unit weight than the middle per unit part. A weight per unit,
The high weighted portion has a first high weighted portion and a second high weighted portion that are spaced apart in the front-rear direction,
The low weight part is a first region provided between the first high weight part and the second high weight part,
A pair of second regions connected to the first region outside the first region in the width direction, and
The first region is provided in the wing region,
The second region extends obliquely with respect to the width direction and reaches the outer edge of the absorbent core;
The absorbent article has a fold line for folding the absorbent article in the front-rear direction,
The said 1st area | region is an absorbent article arrange | positioned in the area | region which does not have the said fold line . The absorbent article according to claim 5 , wherein the second region is arranged in a region not having the fold line. The absorbent article according to any one of claims 1 to 6 , wherein a length of the first region in the front-rear direction is 5 mm or more and less than 25 mm. Wherein the first region extends inclined relative to the previous SL width direction, the absorbent article according to any one of claims 1 to 7. The absorbent article according to claim 8 , wherein the first region and the second region have a convex curved shape that extends outward in the front-rear direction in a plan view. The absorptive article according to any one of claims 1 to 9 , wherein at least a part of the first region is located in front of the center in the front-rear direction of the wing region. The length in the front-rear direction of the absorbent article is 285 mm or more,
The front-rear direction center of the wing region is located on the front side of the front-rear direction center of the absorbent article,
A compressed portion in which the absorbent core is compressed in the thickness direction is provided along the second region in a plan view of the absorbent article,
On the rear side of the low weight portion and the wing area, a second low weight portion extending from the outer edge of the absorbent core toward the inner side in the width direction and extending obliquely with respect to the width direction is provided.
The third low weight portion, which is inclined from the outer edge of the absorbent core toward the inner side in the width direction and inclined with respect to the width direction, is provided behind the second low weight portion. The absorbent article according to any one of claims 1 to 10 .

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