JP7344787B2 - absorbent articles - Google Patents

Description

The present invention relates to an absorbent article having a bending guide portion that guides bending of an absorbent body.

Patent Document 1 discloses an absorbent article that guides the bending of an absorbent body and has a plurality of bending guide portions extending in each of the front-rear direction and the width direction. Thereby, the absorbent body is divided into blocks by the plurality of bending guide portions, and can be easily deformed along the body.

However, since the bending guide part along the front-rear direction extends continuously from the front to the rear of the absorbent body, the bending of the absorbent body based on the bending guide part tends to propagate from the front to the rear. As a result, the shape in which the absorbent body bends in the width direction tends to be the same on the front side and the rear side of the absorbent body. Since the shape of the wearer's body in the width direction differs between the front side (e.g., near the vaginal opening) and the back side (e.g., buttocks), the absorbent article of Patent Document 1 does not fit the wearer's body sufficiently. Something happened.

FIG. 4 of Patent Document 2 discloses an absorbent article that includes a pair of forward bend guide parts and a back bend guide part. The pair of forward bend guide portions extend in the front-rear direction from the front edge of the absorbent article to a position in the front-rear direction of the front edge of the back bend guide portion. The back bend guide portion extends in the front-rear direction from a position a certain distance from the front end of the absorbent article to the rear end of the absorbent article.

On the front side of the absorbent article, the absorbent article can be bent in a concave shape with the pair of forward bend guide portions as base points in a cross section of the absorbent article along the width direction. By bending the absorbent article into a concave shape, the absorbent article can wrap around the excretory opening (particularly the vaginal opening), making it difficult for the absorbent article to hit the excretory opening, which is sensitive to irritation, while also allowing the absorbent article to fit the body. can be done. On the other hand, on the rear side of the absorbent article, the absorbent article can be bent in a convex shape toward the body using the backward bending guide portion as a starting point. By bending the absorbent article in a convex shape, the absorbent article can be placed along the buttock crevice, and the absorbent article can be fitted to the body. In this way, the absorbent article can easily fit the wearer's body in the front-back direction.

JP2012-239722 Special table 1998-502843

In the absorbent article of Patent Document 2, in the front-rear direction, the front region where the pair of forward bend guide portions are arranged and the rear region where the rear bend guide portion is arranged are defined by the bend guide portions. By bending the absorbent article in the width direction as a base point, the absorbent article becomes difficult to bend in the front-back direction. However, at the boundary between the front region and the back region, the absorbent article bends in the front-rear direction. It becomes easier to bend. Therefore, the above-mentioned absorbent article was easily deformed into a V-shape when viewed from the side of the absorbent article. When the absorbent article 1 is folded, a gap may occur between the absorbent article and the wearer's body near the boundary, and the absorbent article may not be able to fit along the wearer's body. As a result, excrement (particularly body fluids) moves across the wearer's skin in the width direction, causing it to leak through the gap between the absorbent article and the wearer's body (so-called lateral leakage). There was a risk.

Therefore, the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an absorbent article that fits the absorbent article along the body.

An absorbent article according to one aspect includes: a front-back direction, a width direction, an absorbent body, a non-skin side sheet disposed on a non-skin side side of the absorbent body, and a non-skin side of the non-skin side sheet. The absorbent body includes an adhesive part provided on the absorbent body and for directly or indirectly fixing the absorbent article to the wearing article, and a bending guide part that guides the bending of the absorbent body. The bending guide portion is arranged at least in an excretion opening region facing the wearer's excretion opening, and is arranged rearward from a position away from the front edge of the absorbent body on both sides of the widthwise center of the absorbent body. a pair of forward bending guide portions extending in the front and back directions, and a rear bending guide portion disposed between the pair of forward bending guide portions and extending in the front-rear direction behind the excretion opening region. have A front end edge of the rear bend guide portion is located further rearward than front end edges of the pair of forward bend guide portions. The rear end edges of the pair of forward bending guide portions are located rearward than the front end edges of the backward bending guide portions and further forward than the rear end edges of the backward bending guide portions.

FIG. 1 is a schematic plan view of an absorbent article according to an embodiment as viewed from the skin side. FIG. 2 is a schematic plan view of the absorbent article according to the embodiment viewed from the non-skin side. 3A is a schematic cross-sectional view of the absorber along line F3A-F3A in FIG. 1, FIG. 3B is a schematic cross-sectional view of the absorber along line F3B-F3B in FIG. 2 is a schematic cross-sectional view of the absorber taken along line F3C-F3C in FIG. 1. FIG. FIG. 4 is a schematic perspective view of the absorbent article according to the embodiment. 5A is a schematic cross-sectional view of the absorbent core along line F5A-F5A in FIG. 4, FIG. 5B is a schematic cross-sectional view of the absorbent core along line F5B-F5B in FIG. 4, and FIG. 5C is 5 is a schematic cross-sectional view of the absorbent core taken along line F5C-F5C in FIG. 4. FIG. FIG. 6 is a diagram for explaining the absorbent body when the absorbent article according to the embodiment is worn. FIG. 7 is a diagram for explaining the bending guide section. FIG. 8 is a diagram for explaining an absorbent article according to modification example 1. FIG. 9A is a schematic plan view of the absorbent article according to Modification Example 2 viewed from the skin side, and FIG. 9B is a schematic plan view of the absorbent article according to Modification Example 3 viewed from the skin side. FIG. 10 is a diagram for explaining the absorbent body when the absorbent article according to Modification Example 2 is worn. FIG. 11 is a schematic plan view of the absorbent article according to Modification Example 4 viewed from the skin side.

(1) Overview of Embodiments An absorbent article according to one embodiment includes, in the front-rear direction, in the width direction, an absorber, a non-skin side sheet disposed on a non-skin side of the absorber, and It has an adhesive part that is provided on the non-skin surface of the skin-side sheet and for directly or indirectly fixing the absorbent article to the wearing article, and a bending guide part that guides the bending of the absorbent body. . The bending guide portion is arranged at least in an excretion opening region facing the wearer's excretion opening, and is arranged rearward from a position away from the front edge of the absorbent body on both sides of the widthwise center of the absorbent body. a pair of forward bending guide portions extending in the front and back directions, and a rear bending guide portion disposed between the pair of forward bending guide portions and extending in the front-rear direction behind the excretion opening region. have A front end edge of the rear bend guide portion is located further rearward than front end edges of the pair of forward bend guide portions. The rear end edges of the pair of forward bending guide portions are located rearward than the front end edges of the backward bending guide portions and further forward than the rear end edges of the backward bending guide portions. According to the absorbent article according to this embodiment, the absorbent article can be easily fitted to the wearer's body from the excretory opening to the perineum and the buttocks.

According to a preferable aspect, the absorbent article has a wing that is folded back toward the non-skin side of the worn article, and the front edge of the rear bend guide portion is arranged in the front-back direction of the wing in the front-back direction. located behind the center of Generally, an absorbent article is designed such that the center position of the wing in the front-rear direction faces the excretory opening (vaginal opening). For this reason, the front edge of the rear bend guiding part is located at the rear of the center of the wing in the front-rear direction, so that when the absorbent article is worn, the excretion port is deviated back and forth from the center of the wing in the front-rear direction. Even if it is, the overlapping region can be easily placed in a position facing the perineum. The absorbent article can be easily fitted to the wearer's body in the perineum, and the absorbent article can be easily fitted to the wearer's body.

According to a preferable aspect, the absorbent article has wings that are folded back toward the non-skin side of the worn article, and the rear end edges of the pair of forward bend guide portions are arranged in the front-rear direction to It is located in front of the position 50 mm rearward from the center in the longitudinal direction. Generally, an absorbent article located further back than 50 mm from the center of the wing in the front-rear direction tends to face a region where the buttock crack is deep. Here, since the bending of the absorbent body caused by the forward bending inducing parts is suppressed on the rear side of the rear edge of the pair of forward bending inducing parts, the bending of the absorbent article caused by the back bending inducing parts The height of convex bending can be ensured. This makes it easier to fit the absorbent article to the body in areas where the buttock crack is deep.

According to a preferable aspect, the absorbent article has an overlapping region where the pair of front bend guide parts and the back bend guide part overlap in the width direction, and the bend guide part has a first auxiliary bend guide part. The first auxiliary bend guiding portion is disposed on the outer side in the width direction than the center in the width direction of the absorbent body, and extends outward in the width direction toward the rear, and The first auxiliary bending guide part or an extension of the first auxiliary bending guide part extends to the rear bending guide part in the overlapping region. In the cross section of the absorbent article along the width direction, when the absorbent body bends convexly toward the body side with the back bend guide part as the starting point, the first auxiliary bend guide part (or extension line) and the back bend guide part The absorbent body easily rises toward the body from the intersection. Thereby, the absorbent body can be smoothly deformed into a convex shape behind the overlapping region, and it becomes easier to fit the absorbent article to the body.

According to a preferred aspect, the bending guide section includes a second auxiliary bending guide section, and the second auxiliary bending guide section is arranged outside the center of the absorbent body in the width direction. and extends inward in the width direction toward the rear, and the second auxiliary bend guide portion is disposed rearward than the rear end edge of the front bend guide portion. As a result, when the absorbent body is bent with the second auxiliary bending guiding portion as a base point, the absorbent body located behind the second auxiliary bending guiding portion becomes easier to stand up toward the body as it moves outward in the width direction. The absorbent body located on the rear side of the second auxiliary bend guide portion is likely to be placed along the line of the buttocks. As a result, the absorbent article can be made to fit the body.

According to a preferable aspect, the second auxiliary bending guide part is arranged outside the front bending guide part in the width direction. When excrement that diffuses outward in the width direction while going rearward from the forward bending guide section reaches the second auxiliary bending guide section, the second auxiliary bending guide section inhibits the diffusion. Thereby, it is possible to suppress the excrement from diffusing outward in the width direction at the rear of the forward bending guide portion.

According to a preferred aspect, the absorbent body has at least an absorbent core containing an absorbent material that absorbs liquid, and the length of the forward bending guide portion in the width direction is equal to or greater than the thickness of the absorbent core. . As a result, when the absorbent body is bent in the width direction from the forward bending guiding part, it is possible to prevent the absorbent bodies arranged across the forward bending guiding part from hitting each other and obstructing the bending. It becomes easier for the article to fit the body.

According to a preferable aspect, the distance in the width direction between the pair of forward bending guiding parts is 10 mm or more and 50 mm or less. By setting the distance in the width direction between the pair of forward bending guiding parts to be 10 mm or more, the area between the pair of forward bending guiding parts can be secured in the width direction, and the absorbent article can be placed locally at the excretion opening. It becomes easier to hit the surface without hitting the target. In addition, since the widthwise distance between the groin and groin areas in the excretory opening region is generally 50 mm or less, by setting the widthwise distance between the pair of forward bending guiding parts to 50mm or less, the pair of By deforming the absorbent body disposed between the forward bending guide parts using the pair of forward bending guide parts as a base point, it becomes easier to fit between the inguinal regions. This makes it difficult for the absorbent body to deform into an N-shape based on the pair of forward bend guide portions in the cross section along the width direction, so that the absorbent article can easily fit the body.

According to a preferable aspect, the absorbent article has an overlapping region where the pair of forward bending guide parts and the back bending guide part overlap in the width direction, and the pair of forward bending guide parts on the rear side of the overlapping region The distance in the width direction between the guide parts is longer than the distance in the width direction between the pair of forward bend guide parts on the front side of the overlapping region. As a result, on the rear side of the overlapping region, the length in the width direction of the front bending guide part and the back bending guide part becomes longer, so the absorbent body bends convexly toward the body from the back bend guide part as a base point. This tends to increase the height of the protruding absorbent body. In the perineum, the depth of the buttock crevice increases toward the anus, making it easier for the absorbent article to fit the body more posteriorly in the overlapping region, which tends to be placed near the anus.

According to a preferred aspect, the absorbent body has at least an absorbent core containing an absorbent material that absorbs liquid, and the pair of forward bend guide portions are slits that penetrate the absorbent core in the thickness direction. As a result, the absorbent core is divided at the forward bending guide portion as a boundary, so that excrement excreted between the pair of forward bending guide portions becomes more difficult to diffuse outward in the width direction than the forward bending guide portion. As a result, side leakage of excrement can be suppressed.

According to a preferable aspect, the absorbent body has at least an absorbent core containing an absorbent material that absorbs liquid, is joined to the absorbent core on the skin side, and is connected to the absorbent core on the skin side side. The skin-side sheet is arranged, and the pair of forward bending guiding parts together with at least one of the skin-side sheet and a core wrap covering the absorbent core compress the absorbent core from the skin side to the non-skin side. The backward bending guiding part is a pressing part in which the absorbent core is compressed from the non-skin side to the skin side together with at least one of the non-skin side sheet and the core wrap. As a result, in the cross section of the absorbent article along the width direction, the absorbent body can be easily bent into a concave shape using the pair of forward bend guide parts as a base point, and the absorbent body can be convex toward the body side with the back bend guide parts as a base point. By making the absorbent article more bendable, the absorbent article can be easily fitted to the wearer's body from the excretory opening to the perineum and the buttocks.

According to a preferred aspect, the length of the front bending guide portion in the width direction is longer than the length of the back bending guide portion in the width direction. By increasing the length in the width direction of the forward bending guiding portion disposed in the excretion port region, it is possible to suppress the spread of excrement in the width direction.

According to a preferable aspect, a fold for folding the absorbent article in the front-back direction is formed to extend in the width direction, and the fold line is formed between the pair of front bend guide parts and the back bend guide part. and are formed at a different position from the overlapping region that overlaps in the width direction. This prevents the absorbent body from becoming difficult to bend in the width direction in the overlapping region, making it easier to smoothly switch between concave deformation of the absorbent body and convex deformation of the absorbent body in the front-rear direction. be able to.

(2) Schematic structure of absorbent article 1 The absorbent article 1 according to the embodiment will be described using FIGS. 1 to 7. The absorbent article may be an absorbent article such as a sanitary napkin, panty liner, adult incontinence pad or urine pad. In the following embodiments, a disposable sanitary napkin will be described as an example of an absorbent article.

Note that FIG. 4 shows a state in which a force F directed inward in the width direction W is applied to the central region S3 of the absorbent article 1. FIG. 6 shows a state in which the wearing article WA to which the absorbent article 1 is fixed is pulled up to the crotch, and shows a state before the absorbent core 31 is deformed. 7A shows a case in which the bending guide part 80 is a slit, and FIG. 7B shows a case in which the bending guide part 80 is a low basis weight part 86. The left figures in each of FIGS. 7A and 7B are schematic plan views of a portion of the absorbent core 31 for explaining the state of diffusion of excrement (body fluid). The right diagram in FIG. 7A is a schematic cross-sectional view of a portion of the absorbent core 31 taken along the line F7A-F7A in the left diagram in FIG. 7A. The right diagram in FIG. 7B is a schematic cross-sectional view of a portion of the absorbent core 31 taken along the line F7B-F7B in the left diagram in FIG. 7B. It should be noted that the drawings are schematic and the ratio of each dimension may differ from the actual one. In the schematic cross-sectional view, each member may be spaced apart in the thickness direction T for convenience of explanation, but in an actual product, each member is in contact with the thickness direction T.

The absorbent article 10 may have a front-back direction L, a width direction W, and a thickness direction T. The front-back direction L is a direction extending from the front side (ventral side) to the rear side (dorsal side) of the wearer, or a direction extending from the rear side to the front side of the wearer. The width direction W is a direction orthogonal to the front-rear direction L. The thickness direction T is a direction (T2) extending from the wearer's skin side to the non-skin side, or a direction (T1) extending from the wearer's non-skin side to the skin side. Further, the thickness direction T is a direction perpendicular to the front-rear direction L and the width direction W. The skin side corresponds to the side facing the wearer's skin during use. The non-skin side corresponds to the side opposite the skin side, ie, the side that is turned away from the wearer's skin in use.

As shown in FIG. 1, the absorbent article 1 may have a front region S1, a rear region S2, and a central region S3. The front side area S1 is located in front of the center area S3, and the rear side area S2 is located in the back side of the center area S3. The central region S3 includes a region that abuts the wearer's excretory opening (for example, the vaginal opening). When the absorbent article 1 has wings 4, the central region S3 may be a region from the front edge 4F of the root of the wing 4 to the rear edge 4R of the root of the wing 4. Note that when the absorbent article 1 does not have wings 4, the front region obtained by dividing the absorbent article 1 into three equal parts in the front-rear direction L is the front region S1, and the rear region is the rear region. The side region S2 may be the central region S3, and the central region between the front region S1 and the rear region S2 may be the central region S3.

The absorbent article 1 may include a main body portion 2 and a pair of wings 4 . The main body portion 2 is a portion disposed on the skin side T1 of the wearing article WA. The main body portion 2 extends in the front-rear direction L from the front region S1 to the rear region S2. The main body portion 2 includes an absorbent body 30. The pair of wings 4 are folded back toward the non-skin side T2 of the wearing article WA. The wings 4 extend further outward in the width direction W than the main body 2 . The wings 4 are provided as a pair on both sides of the main body portion 2 in the width direction W in the central region S3.

The absorbent article 10 may include an absorbent core 30 , a skin-side sheet 42 , a non-skin-side sheet 44 , and an adhesive section 50 . As shown in FIG. 3, the absorbent body 30 has at least an absorbent core 31 containing an absorbent material that absorbs liquid. The absorbent core 31 (absorbent material) may be made of, for example, at least one of pulp and superabsorbent polymer. The absorbent core 30 may include a core wrap 32 that covers the absorbent core 31. The core wrap 32 contacts the absorbent core 31 and covers at least one side of the absorbent core 31 in the thickness direction T. The core wrap 32 may sandwich the absorbent core 31 in the thickness direction T. The core wrap 32 may wrap the absorbent core 31 by being folded back on the side of the absorbent core 31. The core wrap 32 may be made of, for example, tissue, nonwoven fabric, or the like.

The skin-side sheet 42 is arranged closer to the skin surface T1 than the absorbent body 30. The skin-side sheet 42 has a top sheet that faces the wearer's skin. The skin-side sheet 42 may include an intermediate sheet disposed between the top sheet and the absorbent core 30. The skin-side sheet 42 may be made of, for example, a liquid-permeable nonwoven fabric. The non-skin side sheet 44 is arranged closer to the non-skin side T2 than the absorber 30. The non-skin side sheet 44 has a back sheet that faces the wearing article WA. The non-skin side sheet 44 may include a sheet disposed between the back sheet and the absorbent core 30. The non-skin side sheet 20 may be made of, for example, a liquid-impermeable synthetic resin film.

The adhesive portion 50 is provided on the non-skin surface of the non-skin side sheet 44. As shown in FIG. 2, the adhesive portion 50 may be provided on the main body portion 2 or may be provided on the wing 4. The adhesive portion 50 is for directly or indirectly fixing the absorbent article 1 to the wearable article WA. Absorbent article 1 may be directly fixed to wearing article WA via adhesive portion 50. Alternatively, the absorbent article 1 is indirectly fixed to the wearable article WA by being fixed to another article (for example, another absorbent article) fixed to the wearable article WA via the adhesive part 50. good.

The adhesive part 50 has a central adhesive part 51 arranged between the pair of forward bending guide parts 81 in the width direction W, and is arranged outside of the pair of forward bending guide parts 81 in the width direction W, and is closer to the rear side area S2. a pair of front side adhesive parts 52 disposed at the front; a pair of rear side adhesive parts 53 disposed outside the rear bend guide part 82 in the width direction W and rearward of the front side region S1; The wing 4 may also include at least one of the wing adhesive portions 54 provided on the wing 4. The central adhesive portion 51, the front side adhesive portion 52, and the rear side adhesive portion 53 may be provided on the main body portion 2. Moreover, the central adhesive part 51, the front side adhesive part 52, and the rear side adhesive part 53 may extend in the front-rear direction L.

The central adhesive portion 51 may be disposed further forward than the backward bending guide portion 82. The rear end edge 51R of the central adhesive part 51 may be arranged further forward than the front end edge 82F of the rear bend guide part 82. The distance in the front-rear direction L between the rear edge 51R of the central adhesive portion 51 and the front edge 82F of the rear bend guide portion 82 may be equal to or greater than the thickness TC of the absorbent core 31. The outer edge of the front side adhesive part 52 may be arranged on the outer side in the width direction W than the outer edge of the rear side adhesive part 53. The rear end edge 52R of the front side adhesive part may be disposed further forward than the rear end edge 81R of the front bend guide part 81. The distance in the front-rear direction L between the rear edge 52R of the front side adhesive portion and the rear edge 81R of the front bend guiding portion 81 may be equal to or greater than the thickness TC of the absorbent core 31. Further, the front edge of the rear side adhesive portion 53 may be arranged rearward than the rear edge 81R of the front bend guide portion 81. Therefore, the rear edge 81R of the forward bending guiding portion 81 does not need to overlap the adhesive portion 50 in the width direction W. The adhesive part 50 may not be arranged on a straight line along the width direction W passing through the rear end edge 81R of the forward bend guide part 81, but may be arranged in a region other than on the straight line.

A fold line FL for folding the absorbent article 1 in the front-rear direction L may be formed in the absorbent article 1 so as to extend in the width direction. A plurality of folds FL may be formed in the absorbent article 1. When the absorbent article 1 is individually wrapped with the packaging sheet 100, the fold line FL may be formed in the absorbent article 1 and the packaging sheet 100. The absorbent article 1 may be folded about the fold line FL so that the skin-side sheets 42 adjacent to the fold line FL in the front-rear direction L may face each other. As the fold line FL, two fold lines, a first fold line FL1 and a second fold line FL2 located behind the first fold line FL1, may be formed. The first fold line FL1 may be located in front of the front edge 4F of the wing 4, and the second fold line FL2 may be located in the rear of the rear edge 4R of the wing 4. Note that there may be one fold line FL, or there may be three or more fold lines FL.

As shown in FIG. 6, the absorbent article 1 may have an excretion opening region ER facing the wearer's excretion opening. The excretory opening region ER is a region facing the excretory opening, particularly the vaginal opening. The excretory region ER may include a region facing the urethral opening. The excretion port region ER overlaps at least the central region S3. The excretion port region ER may overlap with the rear region S2, or may not overlap with the rear region S2. Moreover, the absorbent article 1 may have a perineal region PR that faces the perineum, which is the region from the vaginal opening to the anus of the wearer. The perineal region PR overlaps at least the central region S3. The perineal region PR may or may not overlap the posterior region S2. Further, the absorbent article 1 may have a buttock region BR that faces a region behind the wearer's anus. The buttock region BR overlaps with the rear region S2.

(3) Bending guide section 80
The bend guide section 80 will be explained using FIGS. 1 to 7. The bending guide section 80 guides the absorber 30 to bend. In the absorber 30, a difference in rigidity occurs due to the bending guide portion 80. The absorber 30 becomes easier to bend based on the bend guide portion 80 due to the difference in rigidity. In the embodiment, the bend guide portion 80 is a slit that penetrates the absorbent core 31 in the thickness direction. The bending guide section 80 has a pair of forward bending guide section 81 and a backward bending guide section 82 .

The pair of forward bend guide portions 81 are arranged at least in the excretion opening region ER facing the wearer's excretion opening. The pair of forward bend guide portions 81 extend rearward from a position away from the front edge 30F of the absorbent body 30 on both sides of the center of the absorbent body 30 in the width direction W. The forward bend guide portion 81 may extend in the front-rear direction L. The forward bending guide portion 81 may be arranged further forward than the excretion opening region ER, or may be arranged further behind the excretion opening region ER. The forward bend guiding portion 81 may overlap the first fold line FL1 in the thickness direction T.

The front edge 81F of the forward bend guide portion 81 is located further back than the front edge 30F of the absorber 30. The front edge 81F of the front bend guide portion 81 may be located at the rear of the first fold line FL1, or may be located at the rear of the front edge 4F of the wing 4, and may be located at the center WC of the wing 4 in the longitudinal direction L. It may be located further back than the On the other hand, the front edge 81F of the forward bending guiding portion 81 may be located forward of the center WC of the wing 4, forward of the front edge 4F of the wing 4, or further forward than the first fold line FL1. may also be located at the front.

The rear end edges 81R of the pair of forward bend guide portions 81 are located behind the front end edge 82F of the back bend guide portion 82 and forward of the rear end edge 82R of the back bend guide portion 82. The rear end edges 81R of the pair of forward bend guide portions 81 may be located further forward than a position 50 mm rearward from the center WC of the wing 4. The rear end edge 81R of the forward bend guide portion 81 may be located forward of the second fold line FL2, or may be located forward of the rear end edge 4R of the wing 4. On the other hand, the rear edge 81R of the front bend guide portion 81 may be located rearward than the rear edge 4R of the wing 4, rearward of the second fold FL2, or located at the center of the wing 4. It may be located further back than 50mm from the WC.

The rear bend guide portion 82 is arranged between the pair of front bend guide portions 81 in the width direction W. The rear bend guide portion 82 extends in the front-rear direction L behind the excretion port region ER. Therefore, the rear bend guide portion 82 may extend to the rear edge 30R of the absorbent body 30 (the rear edge of the absorbent core 31). The rear bending guide portion 82 may extend to a position 50 mm rearward from the center WC of the wing 4, or may extend to a position 90 mm rearward from the center WC of the wing 4. The backward bending guide portion 82 is arranged at least in the perineal region PR. The rear bend guide portion 82 may be arranged in the excretory region ER, and may be arranged more rearward than the perineum region PR. The back bend guide portion 82 may be arranged at a position that does not overlap the adhesive portion 50 in the thickness direction T.

The front end edge 82F of the back bending guide part 82 is located further back than the front end edge 81F of the pair of forward bending guide parts 81. The front end edge 82F of the rear bend guide portion 82 is located further forward than the rear end edge 81R of the pair of forward bend guide portions 81. The front end edge 82F of the rear bending guide portion 82 may be located rearward of the center WC of the wing 4 in the longitudinal direction L. The front edge 82F of the rear bend guide portion 82 may be located further back than the rear edge 4R of the wing 4, and may be located further back than the second fold line FL2.

The rear edge 82R of the rear bend guiding portion 82 is located further back than the rear edge 81R of the pair of front bend guiding portions 81. The rear edge 82R of the rear bend guide portion 82 may be located further back than the rear edge 4R of the wing 4, or may be located further back than the second fold line FL2, and may be located 50 mm from the center WC of the wing 4. It may be located further back than the rear position, or may be located further back than the position 90 mm behind the center WC of the wing 4. On the other hand, the rear edge 82R of the rear bend guiding portion 82 may be located forward of the rear edge 4R of the wing 4, forward of the second fold line FL2, and may be located forward of the rear edge 4R of the wing 4. It may be located in front of a position that is 50 mm behind the WC, or may be located in front of a position that is 90 mm behind the center WC of the wing 4.

As shown in FIG. 3, the length 81W of the forward bending guide portion 81 in the width direction W may be equal to or greater than the thickness TC of the absorbent core 31. The length 81W may be, for example, 1 mm or more and 10 mm or less. The length 82W of the back bend guiding portion 82 in the width direction W may be greater than or equal to the thickness TC of the absorbent core 31. The length 82W may be, for example, 1 mm or more and 10 mm or less. The length 81W of the front bend guide section 81 in the width direction W may be longer than the length 82W of the back bend guide section 82 in the width direction W. Further, the distance 81D in the width direction W between the pair of forward bend guide portions 81 may be 10 mm or more and 50 mm or less. The distance 81D may be 30 mm or less.

The absorbent article 1 may have an overlapping region OR where the pair of forward bend guide portions 81 and the back bend guide portions 82 overlap in the width direction W. In the front-rear direction L, the overlapping region OR is a region from the front edge 82F of the rear bend guide section 82 to the rear edge 81R of the front bend guide section 81. The fold line FL may be formed at a different position from the overlapping region OR. For example, the first fold FL1 may be formed in front of the overlapping region OR, and the second fold FL2 may be formed in the rear of the overlapping region OR.

(4) State of absorbent article 1 The state of absorbent article 1 will be explained using FIGS. 1 to 7. As shown in FIG. 4, for example, when the absorbent article 1 is pinched between the wearer's legs, a force F directed inward in the width direction W acts particularly on the central region S3. Here, when the force F acts on the absorbent body 30, the absorbent body 30 can be deformed as follows depending on the arrangement of the bending guide portions 80. In a region in the width direction W where the rear bending guide part 82 is not arranged and the pair of forward bending guide parts 81 is arranged (for example, the excretion opening region ER), as shown in FIG. 5A, the pair of forward bending guide parts 81 are arranged. The absorber 30 can be bent into a concave shape based on the point. In addition, in a region (for example, perineal region PR) where a pair of forward bending guiding portions 81 and a backward bending guiding portion 82 are arranged in the width direction W, as shown in FIG. 5B, a pair of forward bending guiding portions 81 The absorbent body 30 can be bent into a W-shape using the rear bending guide portion 82 as a base point. In addition, in the region where the pair of forward bending guide parts 81 is not arranged in the width direction W and the back bending guide part 82 is arranged, the absorbent body 30 is worn with the back bending guide part 82 as the base point, as shown in FIG. It can bend in a convex shape toward the person's body.

As described above, since the rear end edges 81R of the pair of forward bend guide portions 81 are located further back than the front end edge 82F of the back bend guide portion 82, the absorbent article 1 is provided with an overlapping region OR. In the overlapping region OR, the absorbent body 30 is likely to bend in the width direction W using the pair of forward bend guide portions 81 and back bend guide portions 82 as base points. In addition, on the front side of the overlapping region OR, the absorbent body 30 easily bends in the width direction W using the pair of forward bending guide portions 81 as a base point, and on the rear side of the overlapping region OR, the width Easy to bend in direction W. By bending the absorbent body 30 in the width direction W, the rigidity against bending in the front-back direction L increases, and the absorbent article 1 becomes difficult to bend in the front-back direction L. Therefore, in a side view of the absorbent article 1, the absorbent article 1 can be made difficult to deform into a V-shape. This suppresses the occurrence of a gap between the absorbent article 1 and the wearer's body due to V-shaped deformation, and lateral leakage of excrement that occurs when excrement travels along the wearer's body in the width direction W. can be suppressed.

Further, as shown in FIG. 5A, the absorbent body 30 bends concavely in the cross section of the absorbent article 1 along the width direction W, with the pair of forward bend guide portions 81 as the base points, so that the absorbent article 1 is bent at the excretion opening ( In particular, it can wrap around the vaginal opening. On the other hand, since the pair of forward bending guiding parts 81 extend rearward from a position away from the front edge 30F of the absorbent body 30, the pair of forward bending guiding parts 81 The concave deformation based on the pair of forward bend guide portions 81 does not propagate to the front portion). Therefore, the front portion of the absorbent core 30 easily deforms along the wearer's body. The front portion of the absorbent body 30 can be easily aligned with the wearer's body in the front-rear direction L, and the absorbent article 1 can be easily fitted to the wearer's body.

As shown in FIG. 6, when the wearer pulls up the wearing article WA to which the absorbent article 1 is fixed toward the body side, the backward bending guide portion 82 extending behind the excretion opening region ER bends around the buttocks. Get into the cracks. Therefore, as shown in FIG. 5C, in the cross section of the absorbent article 1 along the width direction W, the absorbent body 30 can be bent in a convex shape toward the body side using the backward bending guide portion 82 as a base point. Thereby, the absorbent article 1 can be placed along the buttock crevice.

Further, in the overlapping region OR, a pair of forward bending guide portions 81 are arranged on both outer sides of the backward bending guide portion 82 in the width direction W. Therefore, although the absorbent core 30 tends to bend in a convex manner toward the body on the inside of the pair of forward bending guiding parts 81 in the width direction W, even outside of the pair of forward bending guiding parts 81 in the width direction W, It is possible to suppress the transmission of deformation in which the absorber 30 curves convexly toward the body. In addition, in the overlapping region OR, the absorbent body 30 can be deformed based on the pair of forward bending guiding portions 81 and backward bending guiding portions 82, so that the absorbent body 30 is deformed into a concave shape in the front-rear direction L, and the absorbent body 30 is deformed into a concave shape in the front-rear direction L. The deformation to a convex shape can be smoothly switched. As a result, a load is less likely to be applied to the absorbent body 30 due to the concave deformation of the absorbent body 30 and the convex deformation of the absorbent body 30, and it becomes easier for these deformations of the absorbent body 30 to be compatible.

Furthermore, as shown in FIG. 6, in the perineum, the depth of the buttock crevice gradually increases from the vaginal opening to the anus. When the overlapping region OR is placed in a position facing the perineum, the absorbent body 30 deforms from a concave shape (a state in which the center height of the absorbent body 30 in the width direction W is low) to a convex shape. The height of the center of the absorbent body 30 in the width direction W can be increased in accordance with the depth of the crack by smoothly switching to the deformed state (the state in which the height of the center of the absorbent body 30 in the width direction W is high). I can do it. This prevents the gap between the wearer's body and the absorbent article 1 from becoming large, making it easier to fit the absorbent article 1 to the wearer's body.

As described above, the absorbent article 1 according to the embodiment can easily fit the absorbent article 1 to the wearer's body from the excretory opening to the perineum and the buttocks.

In general, the absorbent article 1 is designed such that the center WC of the wings 4 faces the excretory opening (vaginal opening). For this reason, the front edge 82F of the rear bend guide portion 82 is located at the rear of the center WC of the wing 4, so that when the absorbent article 1 is attached, the excretion port is not deviated back and forth from the center WC of the wing 4. Even if the overlapping region is arranged, the overlapping region can be easily arranged at a position facing the perineum. In the perineum, the absorbent article 1 can be easily fitted to the wearer's body, and the absorbent article 1 can be easily fitted to the wearer's body.

Generally, the absorbent article 1 located further back than 50 mm from the center WC of the wing 4 tends to face a region where the buttock crack is deep. Here, on the rear side of the rear edge 81R of the pair of forward bending guide portions 81, the bending of the absorbent body 30 caused by the forward bending guide portions 81 is suppressed. The height of the convex bending of the article toward the body can be ensured. Therefore, by positioning the rear end edges 81R of the pair of forward bend guide portions 81 further forward than the position 50 mm rearward from the center WC of the wings 4, the absorbent article 1 can be attached to the body in the region where the buttock crack is deep. Easier to fit.

Further, the length 81W of the forward bend guiding portion 81 in the width direction W may be equal to or greater than the thickness TC of the absorbent core 31. As a result, when the absorbent body 30 is bent in the width direction W using the forward bend guiding portion 81 as a base point, the absorbent bodies 30 disposed across the forward bend guiding portion 81 are prevented from hitting each other and inhibiting the bending. This makes it easier for the absorbent article 1 to fit the body. In addition, when the length 81W of the forward bending guide part 81 is 1 mm or more, even if the absorbent body 30 is twisted by wearing the absorbent article 1, the forward bending guide part 81 becomes difficult to be crushed. Thereby, it becomes easier to maintain (the function of) the forward bending guide portions 81, and the absorbent body 30 can be bent into a concave shape using the pair of forward bending guide portions 81 as a base point. Further, if the length 81W of the forward bending guide section 81 is 10 mm or less, the width of the forward bending guide section 81 becomes difficult for the user to feel, and the user does not feel anxious about the leakage of excrement. It can be suppressed. In particular, when the forward bending guide section 81 is a slit, the length 81W of the forward bending guide section 81 is preferably 10 mm or less.

The distance 81D in the width direction W between the pair of forward bend guide portions 81 may be 10 mm or more. Thereby, in the width direction W, the area between the pair of forward bend guide portions 81 can be secured, and the absorbent article 1 can easily hit the excretion opening in a planar manner without hitting the excretion opening locally.

Further, if the distance 81D in the width direction W between the pair of forward bending guiding parts 81 is wide and the absorbent body 30 disposed between the pair of forward bending guiding parts 81 does not fit between the groin parts, In the cross section along W, the absorbent body 30 may deform into an N-shape based on the pair of forward bend guide portions 81, making it difficult for the absorbent article 1 to fit the body. Here, the distance in the width direction W between the inguinal regions in the excretory opening region ER is generally 50 mm or less. Therefore, by setting the distance 81D in the width direction between the pair of forward bending guide parts 81 to 50 mm or less, when the absorber 30 is deformed using the pair of forward bending guide parts 81 as a base point, the distance between the inguinal region and the inguinal region is It becomes easier to fit in. As a result, in the cross section along the width direction W, the absorbent body 30 is easily deformed into a concave shape without being deformed into an N-shape using the pair of forward bend guide portions 81 as a base point, so that the absorbent article 1 is easily deformed into a concave shape with respect to the pair of forward bending guide portions 81 as a base point. Easy to fit.

Further, as shown in FIGS. 3 and 7A, the pair of forward bend guide portions 81 may be slits that penetrate the absorbent core 31 in the thickness direction T. As a result, as shown in FIG. 7A, the absorbent core 31 is separated by the forward bending guide part 81 as a boundary, so that excrement (for example, body fluids such as menstrual blood) excreted between the pair of forward bending guide parts 81 is separated. becomes more difficult to diffuse outward in the width direction W than the forward bending guiding portion 81 . As a result, side leakage of excrement can be suppressed.

For example, when the width of the absorbent core 31 is, for example, 50 mm or less, the bend guide portion 80 may be a slit. This makes it difficult for the excrement excreted between the pair of forward bend guide portions 81 to reach the side edges of the absorbent core 31, so that side leakage of excrement can be prevented. Further, when the minimum length in the width direction W from the forward bending guide part 81 to the side edge of the absorbent core 31 is, for example, 10 mm or less, the bending guide part 80 may be a slit. Further, when the thickness TC of the absorbent core 31 is, for example, thicker than 3.5 mm, the bending guide portion 80 may be a slit. Thereby, since the slit has zero rigidity, the bending guide portion 80 can increase the rigidity difference in the width direction W of the absorbent core 31. The thick absorbent core 31 is easily deformed in the width direction W using the bend guide portion 80 as a base point, and the absorbent article 1 can be easily fitted to the body.

As shown in FIG. 7B, the pair of forward bend guide portions 81 may be low basis weight portions having a lower basis weight than the surroundings. Specifically, the basis weight of the pair of forward bend guide parts 81 may be lower than the basis weight of the adjacent portion 33 of the absorbent core 31 adjacent to the pair of forward bend guide parts 81 in the width direction W. The low basis weight portion has a basis weight greater than zero. When the density of the absorbent material of the pair of forward bending guide portions 81 and the density of the absorbent material of the adjacent portion 33 are equivalent, the thickness of the bending guide portion 80 is thinner than the thickness of the adjacent portion 33 . As a result, the forward bending guide portion 81 has a narrower region in the thickness direction T where excrement diffuses compared to the adjacent portion 33, and the area where excrement is diffused to the outside in the width direction W than the pair of forward bending guide portions 81. (so-called bottleneck). Therefore, first, excrement is absorbed by the absorbent core 31 between the pair of forward bending guiding parts 81, and when the amount of excrement exceeds the absorption amount of the absorbent core part between the pair of forward bending guiding parts 81, the absorbent core 31 between the pair of forward bending guiding parts 81 absorbs excrement. The absorbent core portion disposed outside the bend guide portion 81 in the width direction W begins to absorb excrement. Thereby, the usage time of the absorbent article 1 becomes longer, and even when the amount of excrement is large, leakage of excrement can be suppressed.

For example, when the thickness TC of the absorbent core 31 is, for example, thicker than 1.5 mm and 3.5 mm or less, the forward bending guide portion 81 may be a low basis weight portion. If the amount of excrement is large even though the absorbent core 31 mainly absorbs the excrement, the absorption core 31 on the outside of the pair of bending guide parts 80 in the width direction W can absorb the excrement.

The low basis weight portion corresponding to the bending guide portion 80 may be arranged biased toward the skin side T1. In other words, the bending guide portion 80 may be biased toward the skin side T1 by recessing the absorber 30 from the non-skin side T2 to the skin side T1. May be provided. Further, the low basis weight portion corresponding to the bending guide portion 80 may be arranged biased toward the non-skin side T2, that is, the bending is induced by the absorber 30 being recessed from the skin side T1 to the non-skin side T2. A section 80 may be provided. Note that the low basis weight portions corresponding to the pair of forward bending guide portions 81 may be arranged biased toward the non-skin surface side T2. As a result, the stiffness of the part on the skin side T1 of the forward bending guiding part 81 is lower than the rigidity of the part of the non-skin side T2 where the forward bending guiding part 81 exists, so that the absorbent body 30 is When the force F acts on the inside of the absorber 30, the absorbent body 30 tends to bend into a concave shape with the pair of forward bending guide portions 81 as the base points. Further, the low basis weight portion corresponding to the backward bending guide portion 82 may be arranged biased toward the skin side T1. As a result, the stiffness of the non-skin side T2 portion of the back bending guide portion 82 is lower than the stiffness of the skin side T1 portion where the back bend guide portion 82 exists, so that the absorber 30 is When the force F acts inwardly, the absorbent body 30 tends to bend in a convex shape toward the wearer's body using the backward bending guiding portion 82 as a base point.

Further, the length 81W of the front bending guide portion 81 in the width direction W may be longer than the length 82W of the rear bending guide portion 82 in the width direction W. By widening the length 81W of the forward bend guide portion 81 disposed in the excretion port region ER, it is possible to suppress the excrement from spreading in the width direction W. On the other hand, since the length 82W in the width direction W of the back bend guiding part 82 becomes narrower, when the back bend guiding part 82 is a slit, when the absorbent core 30 bends in a convex shape toward the wearer's body side, In addition, the adjacent portions 33 of the absorbent core 31 adjacent to the rear bending guide portion 82 on both sides in the width direction W can easily approach each other. As a result, the amount of absorbent material disposed deep in the buttock crevice is less likely to decrease, and leakage of excrement along the crevice to the back side can be suppressed.

Moreover, when the fold line FL is formed in the overlapping region OR, the rigidity of the absorbent body 30 increases along the fold line FL extending along the width direction W. Since the absorbent body 30 has a partially high rigidity, it becomes difficult for the absorbent body 30 to bend in the width direction. Therefore, the fold line FL may be formed at a different position from the overlap region OR. This prevents the absorbent core 30 from becoming difficult to bend in the width direction W in the overlapping region OR, and prevents the absorbent core 30 from deforming into a concave shape and deforming into a convex shape in the front-rear direction L. can be easily switched smoothly.

In addition, when the back bend guide part 82 extending along the center of the width direction W overlaps the adhesive part 50 in the thickness direction T, the absorber 30 protrudes toward the wearer's body with the back bend guide part 82 as a base point. When bent into a shape, the adhesive parts 50 on both sides of the center in the width direction W come into contact with each other and are easily joined. Therefore, in order to avoid the adhesive parts 50 coming into contact with each other, the backward bending guiding part 82 may be arranged at a position that does not overlap with the adhesive part 50 in the thickness direction T. This makes it difficult for the adhesive parts 50 to join together, so that when the convex absorbent body 30 deforms into a flat absorbent body 30 due to a change in the wearer's posture, this deformation is less likely to be inhibited. Thereby, the absorbent article 1 can continue to follow the body line of the wearer as the wearer moves, making it easier to keep the absorbent article 1 fitted to the body.

Further, since the absorbent article 1 is easily bent in the front-rear direction L along the wearer's body with the first fold line FL1 as a base point so that the skin-side sheets 42 face each other, the front bend guide portion 81 If the forward bending guiding portion 81 overlaps in the thickness direction T, the forward bending guiding portion 81 is also likely to be arranged along the wearer's body. When the wearer is in a sitting posture, the front portion of the forward bend guide portion 81 is more likely to be arranged upward than the first fold line FL1. This makes it difficult for excrement to reach the absorbent core 31 on the front side of the front edge 81F of the front bend guide part 81 when it diffuses forward along the front bend guide part 81. Diffusion from the core 31 in the planar direction (particularly outward in the width direction W) can be suppressed.

The distance in the front-rear direction L between the rear end edge of the central adhesive part 51 and the front end edge 82F of the backward bend guide part 82 may be equal to or greater than the thickness TC of the absorbent core 31. As a result, the back bend guide section 82 moves away from the region where the absorbent article 1 is in close contact with the wearing article WA by the central adhesive section 51, so that the absorbent body 30 can be easily bent in a convex shape with the back bend guide section 82 as a base point. The outer edge of the front side adhesive part 52 may be arranged on the outer side in the width direction W than the outer edge of the rear side adhesive part 53. As a result, the part having higher rigidity due to the front side adhesive part 52 is located on the outer side in the width direction W than the part having higher rigidity due to the rear side adhesive part 53. The force F directed inward is likely to be applied to the forward bending guide portion 81 first. As a result, the absorbent body 30 bends first in a concave shape, making it easier for the absorbent body 30 to fit the wearer's body in the vicinity of the excretion port, thereby suppressing leakage of excrement.

(5) Modification Example An absorbent article 1 according to a modification example will be described with reference to FIGS. 8 to 11. The left diagram in FIG. 8A is a schematic plan view of a portion of the absorbent core 31 for explaining the state of diffusion of excrement (body fluid). The right diagram in FIG. 8A is a schematic cross-sectional view of a portion of the absorbent core 31 taken along the line F8A-F8A in the left diagram in FIG. 8A. FIG. 8B shows the state before the absorbent core 31 is bent, and FIG. 8C shows the state after the absorbent core 31 is bent. Note that, in the following, descriptions of the same contents as those already given will be omitted.

The absorbent article 1 according to Modification Example 1 will be explained using FIG. 8. In the absorbent article 1 according to Modification Example 1, the bend guide section 80 is a compressed section. As shown in FIG. 8A, the bending guide portion 80 may be a compressed portion in which at least the absorbent core 31 is compressed in the thickness direction T. The pair of forward bend guide portions 81 may be compressed portions in which the absorbent core 31 is compressed from the skin side T1 to the non-skin side T2 together with at least one of the skin side sheet 42 and the core wrap 32. The backward bending guide portion 82 may be a compressed portion in which the absorbent core 31 is compressed from the non-skin side T2 to the skin side T1 together with at least one of the non-skin side sheet 44 and the core wrap 32. In the compression section, only the absorbent core 31 and core wrap 32 may be compressed without the non-skin side sheet 44 being compressed.

As shown in FIG. 8B, the skin side sheet 42 and/or the core wrap 32 are strongly pressed from the skin side T1 to the non-skin side T2 by compression to provide the forward bending guide portion 81. The skin-side sheet 42 and/or the core wrap 32 are strongly pulled toward the compressed portion on both sides of the compressed portion (forward bend guide portion 81), and a force is applied to the absorbent body 30 toward the compressed portion. However, due to the rigidity of the absorbent core 31, it cannot move in the direction of the compressed part (width direction W in FIG. 8B), and as shown in FIG. 8C, the absorbent core 30 on both sides of the compressed part is lifted toward the skin side T1. It becomes easier to bend. Therefore, in the cross section of the absorbent article 1 along the width direction W, the absorbent body tends to bend in a concave shape with the pair of forward bend guide portions 81 as the base points.

On the other hand, the non-skin side sheet 44 and/or the core wrap 32 are strongly pressed from the non-skin side T2 to the skin side T1 by compression for providing the rear bend guide portion 82. As a result, although a force is applied to the absorbent body 30 toward the compressed portion (rear bend guiding portion 82), the rigidity of the absorbent core 31 lifts the absorbent body 30 on both sides of the compressed portion toward the non-skin side T2. It becomes easier to bend. Therefore, in the cross section of the absorbent article 1 along the width direction W, the absorbent body 30 tends to bend in a convex shape toward the body side with the back bending guide portion 82 as a starting point.

In this way, in the cross section of the absorbent article 1 along the width direction W, the absorbent body is easily bent in a concave shape with the pair of forward bending guide parts 81 as the base points, and the absorbent body 30 is easily bent into a concave shape with the pair of forward bend guide parts 82 as the base points. Since the absorbent article 1 easily bends in a convex shape toward the side, the absorbent article 1 can be easily fitted to the wearer's body from the excretory opening to the perineum and the buttocks.

Furthermore, when the pair of forward bending guide portions 81 are compressed portions, the density of the pair of forward bending guide portions 81 is higher than the density of the adjacent portion 33 . This makes it easier for excrement to be drawn into the pair of forward bend guide portions 81 by capillary action. Since the amount of excrement absorbed by the pair of forward bending guide portions 81 increases, the excrement is easily spread in the front-rear direction L, as shown in the left diagram of FIG. 8A. Thereby, it becomes difficult for excrement to diffuse outward in the width direction W than the pair of forward bend guide portions 81, and leakage of excrement can be suppressed.

When the front bending guide part 81 and the back bending guide part 82 are compressed parts, the length 81W of the front bending guide part 81 in the width direction W is longer than the length 82W of the back bending guide part 82 in the width direction W. good. Thereby, the wide portion of the absorbent core 31 in the front-rear direction L can easily absorb excrement, and leakage of excrement can be suppressed. On the other hand, since the length 82W of the back bend guiding part 82 becomes narrower, when the back bend guiding part 82 is a compressed part, when the absorbent body 30 is bent in a convex shape toward the wearer's body side, , the width of the apex of the convex absorber 30 can be narrowed. This makes it easier for the convex absorbent core 30 to penetrate deep into the buttock crevice, making it easier to fit the absorbent article 1 to the wearer's body.

Next, the absorbent article 1 according to Modification Example 2 and Modification Example 3 will be described using FIGS. 9 and 10. As shown in FIG. 9, in the absorbent article 1 according to the second modification example and the third modification example, the bend guide section 80 includes a first auxiliary bend guide section 831. The first auxiliary bend guide portion 831 is arranged outside the center of the absorbent body 30 in the width direction W in the width direction W. The first auxiliary bend guide portion 831 extends outward in the width direction W toward the rear. As shown in FIG. 9A, the first auxiliary bend guide section 831 may extend to the rear bend guide section 82 in the overlapping region OR. Therefore, the first auxiliary bend guide section 831 may intersect with the rear bend guide section 82 . As shown in FIG. 9B, when the first auxiliary bending guide part 831 does not extend to the rear bending guide part 82 in the overlapping region OR, the extension line EL obtained by extending the first auxiliary bending guide part 831 is It may extend to the bending guide portion 82. Therefore, the extension line EL may intersect with the rear bend guide portion 82. The extension line EL is an extension line along the direction in which the first auxiliary bend guide portion 831 extends. The angle θ formed by the first auxiliary bend guide portion 831 or the extension line EL and the rear bend guide portion 82 may be 10 degrees or more and 80 degrees or less.

The absorber 30 becomes easier to bend along the first auxiliary bending guide part 831 with the first auxiliary bending guide part 831 as a base point. Furthermore, when the absorbent body 30 is bent along the first auxiliary bending guide portion 831, the absorbent body 30 is easily bent along the extension line EL of the first auxiliary bending guiding portion 831. As shown in FIG. 10, in the cross section of the absorbent article 1 along the width direction W, when the absorbent core 30 bends convexly toward the body side with the back bending guide part 82 as a base point, the first auxiliary bending guide part The absorbent body 30 easily rises toward the body from the intersection of 831 (or extension line EL) and the backward bending guiding portion 82. Thereby, the absorbent core 30 can be smoothly deformed into a convex shape behind the overlapping region OR, making it easier to fit the absorbent article 1 to the body. In addition, when the angle θ between the first auxiliary bend guide portion 831 or the extension line EL and the rear bend guide portion 82 is 10 degrees or more and 80 degrees or less, the absorber 30 can be more smoothly deformed into a convex shape. I can do it.

As shown in FIGS. 9 and 10, in the absorbent article 1 according to the second modification example and the third modification example, the bend guide section 80 includes a second auxiliary bend guide section 832. The second auxiliary bend guide portion 832 is arranged outside the center of the absorber 30 in the width direction W in the width direction W. The second auxiliary bend guide portion 832 extends inward in the width direction W toward the rear. The second auxiliary bend guide section 832 may be arranged rearward of the rear end edge 81R of the front bend guide section 81.

As shown in FIG. 10, when the absorbent body 30 bends with the second auxiliary bending guide part 832 as a base point, the portion 301 of the absorbent body 30 on the rear side of the second auxiliary bending guide part 832 moves outward in the width direction W. The further you go, the easier it will be to stand up toward your body. The portion 301 of the absorbent core 30 can be easily placed along the buttocks line, allowing the absorbent article to fit the body. The excrement flowing backward is easily absorbed into the portion 301 of the absorbent body 30, and leakage of excrement can be suppressed.

The second auxiliary bending guide section 832 may be arranged further outward in the width direction W than the front bending guide section 81 . Further, the second auxiliary bending guide section 832 may be arranged further inside the front bending guide section 81 in the width direction W. As a result, when excrement that diffuses outward in the width direction W while moving backward from the front bending guide part 81 reaches the second auxiliary bending guide part 832, the second auxiliary bending guide part 832 prevents the waste from spreading. Ru. Thereby, it is possible to suppress the excrement from diffusing outward in the width direction W behind the forward bending guide portion 81.

Note that the first auxiliary bend guide portion 831 may be any one of a slit, a low basis weight portion, and a compressed portion. The first auxiliary bend guide portion 831 may be configured by a plurality of compressed portions being intermittently arranged side by side. The direction in which the plurality of compressed parts are lined up may be the direction in which the first auxiliary bending guide part 831 extends. Like the first auxiliary bending guide part 831, the second auxiliary bending guide part 832 may also be a slit, a low basis weight part, or a compressed part. In addition, when the second auxiliary bending guide part 832 is a slit, the absorbent core 31 is divided with the second auxiliary bending guide part 832 as a boundary, so that excrement spreads beyond the second auxiliary bending guide part 832 to the rear. It becomes difficult to do. Moreover, when the second auxiliary bending guide part 832 is a low basis weight part, the second auxiliary bending guide part 832 becomes a bottleneck because less absorbent material is diffused in the second auxiliary bending guide part 832 . This makes it difficult for excrement to spread beyond the second auxiliary bend guide portion 832 to the rear. In addition, when the second auxiliary bending guide part 832 is a compressing part, the excrement is likely to spread along the second auxiliary bending guide part 832, so that the excrement goes beyond the second auxiliary bending guide part 832 and reaches the rear. It becomes difficult to spread.

As shown in FIG. 9, at least one of the front edge 81F and the rear edge 81R of the forward bend guide portion 81 may have an arc shape. Thereby, compared to the case where the front edge 81F (rear edge 81R) of the forward bend guide portion 81 extends along the width direction W, the area of the absorbent core 31 can be increased, and the amount of absorption can be increased. In particular, when the excrement spreads along the forward bending guide section 81, the surface area where the excrement comes into contact with the front edge 81F (rear edge 81R) of the forward bending guide section 81 increases. Excrement can be easily absorbed into the absorbent core 31 on the front side of the front edge 81F of the forward bending guiding portion 81, and rewetting of the excrement can be suppressed.

The absorbent article 1 according to Modification Example 4 will be explained using FIG. 11. In the absorbent article 1 according to modification example 4, the distance 81D2 in the width direction W between the pair of forward bending guide portions 81 on the rear side of the overlapping region OR is the distance 81D2 in the width direction W between the pair of forward bending guide portions 81 on the front side of the overlapping region OR. It is longer than the distance 81D1 in the width direction W. As shown in FIG. 11, in the overlapping region OR, the pair of forward bend guide portions 81 may extend outward in the width direction W toward the rear. The front side of the overlapping region OR is the overlapping region OR on the front side of the center line that bisects the overlapping region OR in the front-rear direction L, and the rear side of the overlapping region OR is the overlapping region OR on the rear side of the center line. It is.

In the absorbent article 1 according to Modification Example 4, on the rear side in the overlapping region OR, the length in the width direction W of the front bend guide portion 81 and the back bend guide portion 82 is longer, so that the back bend guide portion 82 is the base point. As a result, the height of the protruding absorber 30 tends to increase as the absorber 30 bends in a convex shape toward the body. In the perineum, the depth of the buttock crevice increases toward the anus, so that the absorbent article 1 fits more easily to the body on the rear side of the overlapping region OR, which is likely to be placed near the anus.

(5) Other embodiments The above-described embodiments and modified examples are for the purpose of illustrative explanation, and the present invention may be implemented in other embodiments. For example, the bending guide section 80 may include one or more width bending guide sections extending in the width direction W behind the front bending guide section 81 . The width bending guide portion may extend along the width direction W from one side edge of the absorbent core 31 to the other side edge, for example. The width bending guide portion may overlap in the thickness direction T, for example, at a position 50 mm rearward from the center WC of the wing 4. Generally, a position 50 mm behind the center WC of the wing 4 tends to face the anus. Therefore, the absorbent article 1 becomes easier to bend in the front-rear direction L near the anus, making it easier to fit the absorbent article 1 to the body. Further, the width bending guide portion may overlap in the thickness direction T at a position 90 mm rearward from the center WC of the wing 4, for example. Generally, the position 90 mm behind the center WC of the wing 4 tends to be opposite to the position of the rear lower end of the buttock where the curve of the buttock begins. Therefore, the absorbent article 1 becomes easier to bend in the front-rear direction L at the rear lower end of the buttocks, making it easier to fit the absorbent article 1 to the body.

Further, a lattice-shaped compressed portion may be formed in a region of the absorbent article 1 that overlaps the absorbent core 30 in the thickness direction T behind the front edge of the overlapping region OR. In this case, a part of the lattice-shaped compressed part may be the first auxiliary bending guide part 831 and the second auxiliary bending guide part 832.

In addition, in addition to the pair of forward bend guide parts 81 and rear bend guide parts 82, if at least one other bend guide part 80 of a slit, a low basis weight part, and a compressed part is provided, all other bend guide parts provided are The bending guide portion 80 may extend at an angle with respect to a straight line along the front-rear direction L and a straight line along the width direction W. Alternatively, all the other bending guide portions 80 provided have an angle of 10 degrees or more with each of the straight line along the front-rear direction L and the straight line along the width direction W, in a plan view of the absorbent article 1. It may be 80 degrees or less. Alternatively, other than the pair of front bend guide parts 81 and rear bend guide parts 82, other bend guide parts 80 (slit, low basis weight part, and compressed part) may not be provided. There is no fear that the force F directed inward in the width direction W will be dispersed by the other bending guide parts 80, and the deformation of the absorbent core 31 by the pair of front bend guide parts 81 and rear bend guide parts 82 will more easily occur. It's fine.

It should be noted that the configurations of the absorbent article 1 according to the above-described embodiment, each modification example, and other embodiments can be combined as appropriate. The invention is not limited to what has been described herein. Modifications and changes may be made without departing from the spirit and scope of the present invention as defined by the claims.

1: Absorbent article 4: Wing 10: Absorbent article 20: Non-skin side sheet 30: Absorbent body 31: Absorbent core 32: Core wrap 42: Skin side sheet 44: Non-skin side sheet 50: Adhesive part 80: Bending guide part 81 : Front bend guide part 82 : Back bend guide part 831 : First auxiliary bend guide part 832 : Second auxiliary bend guide part EL : Extension line ER : Excretion opening area FL : Crease L : Fore-and-aft direction OR : Overlapping area T : Thickness direction T1: Skin side T2: Non-skin side W: Width direction WA: Wearing article

Claims (13)

An absorbent article,
In the front-rear direction and in the width direction,
absorber and
a non-skin side sheet disposed on the non-skin side of the absorbent body;
an adhesive part provided on the non-skin surface of the non-skin side sheet and for directly or indirectly fixing the absorbent article to the worn article;
a bending guide part that guides bending of the absorber;
The bending guiding part is
A pair of absorbent parts arranged at least in an excretion opening region facing the wearer's excretion opening, and extending rearward from a position away from the front edge of the absorbent body on both sides of the widthwise center of the absorbent body. a forward bending guiding section;
a rear bending guide part disposed between the pair of front bend guide parts and extending in the front-rear direction behind the excretion port area;
The front edge of the rear bending guide part is located further back than the front edge of the pair of front bend guide parts,
The rear end edges of the pair of forward bending guide portions are located rearward than the front end edge of the backward bending guide portion and forward of the rear end edge of the backward bending guide portion,
The pair of forward bending guide portions and the rear bending guide portion have an overlapping region that overlaps in the width direction,
The bending guide part has a first auxiliary bending guide part,
The first auxiliary bend guide portion is disposed outside the widthwise center of the absorbent body, and extends outward in the width direction toward the rear,
The absorbent article, wherein the first auxiliary bending guide part or an extension line extending the first auxiliary bending guide part extends to the back bending guide part in the overlapping region. An absorbent article,
In the front-rear direction and in the width direction,
absorber and
a non-skin side sheet disposed on the non-skin side of the absorbent body;
an adhesive part provided on the non-skin surface of the non-skin side sheet and for directly or indirectly fixing the absorbent article to the worn article;
a bending guide part that guides bending of the absorber;
The bending guiding part is
A pair of absorbent parts arranged at least in an excretion opening region facing the wearer's excretion opening, and extending rearward from a position away from the front edge of the absorbent body on both sides of the widthwise center of the absorbent body. a forward bending guiding section;
a rear bending guide part disposed between the pair of front bend guide parts and extending in the front-rear direction behind the excretion port area;
The front edge of the rear bending guide part is located further back than the front edge of the pair of front bend guide parts,
The rear end edges of the pair of forward bending guide portions are located rearward than the front end edge of the backward bending guide portion and forward of the rear end edge of the backward bending guide portion,
The bending guide part has a second auxiliary bending guide part,
The second auxiliary bending guide portion is disposed on the outer side in the width direction than the center in the width direction of the absorbent body, and extends inward in the width direction toward the rear,
In the absorbent article, the second auxiliary bend guide section is disposed rearward of the rear edge of the front bend guide section. The absorbent article according to claim 2, wherein the second auxiliary bend guide section is disposed outside the front bend guide section in the width direction. An absorbent article,
In the front-rear direction and in the width direction,
a central region that overlaps with an excretion port area facing the wearer's excretion port; a front region located to the front of the central region; and a rear region located to the rear of the central region;
absorber and
a non-skin side sheet disposed on the non-skin side of the absorbent body;
an adhesive part provided on the non-skin surface of the non-skin side sheet and for directly or indirectly fixing the absorbent article to the worn article;
a bending guide section that guides bending of the absorber;
A pair of wings that are folded back to the non-skin side of the worn article,
The bending guiding part is
a pair of forward bend guide portions disposed at least in the excretion port region and extending rearward from a position away from a front edge of the absorbent body on both sides of the widthwise center of the absorbent body;
a rear bending guide part disposed between the pair of front bend guide parts and extending in the front-rear direction behind the excretion port area;
The central region is an area from the front edge of the root of the wing to the rear edge of the root of the wing,
The front edge of the rear bending guide part is located further back than the front edge of the pair of front bend guide parts,
The rear end edges of the pair of forward bending guide portions are located rearward than the front end edge of the backward bending guide portion and forward of the rear end edge of the backward bending guide portion,
The front end edge of the back bending guide part and the rear end edge of the pair of front bend guide parts are arranged in the central region,
The absorbent article, wherein the rear edge of the rear bend guide portion is disposed in the rear region. The absorbent article has wings that are folded back to the non-skin side of the worn article,
The absorbent article according to any one of claims 1 to 4, wherein the front end edge of the back bend guide portion is located rearward in the front-back direction from the center of the wing in the front-back direction. The absorbent article has wings that are folded back to the non-skin side of the worn article,
6. The rear end edges of the pair of forward bend guide portions are located further forward in the front-rear direction than a position 50 mm behind the center of the wing in the front-rear direction. The absorbent article described in . The absorbent body has at least an absorbent core containing an absorbent material that absorbs liquid,
The absorbent article according to any one of claims 1 to 6, wherein the length of the forward bending guide portion in the width direction is equal to or greater than the thickness of the absorbent core. The absorbent article according to any one of claims 1 to 7, wherein a distance in the width direction between the pair of forward bend guide portions is 10 mm or more and 50 mm or less. The pair of forward bending guide portions and the rear bending guide portion have an overlapping region that overlaps in the width direction,
The distance in the width direction between the pair of forward bending guiding parts on the rear side of the overlapping area is longer than the distance in the width direction between the pair of forward bending guiding parts on the front side of the overlapping area. 8. The absorbent article according to any one of 8. The absorbent body has at least an absorbent core containing an absorbent material that absorbs liquid,
The absorbent article according to any one of claims 1 to 9, wherein the pair of forward bend guide portions are slits that penetrate the absorbent core in the thickness direction. The absorbent body has at least an absorbent core containing an absorbent material that absorbs liquid,
a skin-side sheet joined to the absorbent core on the skin side and disposed closer to the skin than the absorbent body;
The pair of forward bending guide parts are compressed parts in which the absorbent core is compressed from the skin side to the non-skin side, together with at least one of the skin side sheet and a core wrap that covers the absorbent core,
According to any one of claims 1 to 10, the backward bending guide portion is a compressed portion in which the absorbent core is compressed from the non-skin side to the skin side together with at least one of the non-skin side sheet and the core wrap. Absorbent article as described. The absorbent article according to any one of claims 1 to 11, wherein the length of the front bend guide portion in the width direction is longer than the length of the back bend guide portion in the width direction. A crease for folding the absorbent article in the front-back direction is formed to extend in the width direction,
The absorbent article according to any one of claims 1 to 12, wherein the fold line is formed at a position different from an overlapping region where the pair of forward bend guide portions and the back bend guide portion overlap in the width direction. .

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