JP2018000511A - Absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an absorbent article which can suppress discomfort when it is worn by a wearer, and can enhance fitting property to a body of a wearer.SOLUTION: An absorbent article 1 comprises: an absorbent core 31; a cover sheet 32 and a top sheet 11 which are arranged on a skin facing surface side relative to the absorbent core; and a first compression groove 81 formed on at least the absorbent core 31 and the cover sheet 32, and extends in a first direction. An extensibility in a second direction of the cover sheet is lower than an extensibility in the second direction of a skin surface sheet. On outside in the second direction with respect to a center of the first compression groove in the second direction, a breaking part 33 on which the cover sheet is broken, is provided.SELECTED DRAWING: Figure 1

Description

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

  Patent Document 1 discloses an absorbent article having a compressed groove. The pressing groove of Patent Document 1 extends in the longitudinal direction in the rear side region. The absorptive article of patent documents 1 is constituted so that a crushing groove may protrude on the skin facing side (for example, refer to Drawing 5 of patent documents 1).

JP 2012-157459 A

  The pressing groove of Patent Document 1 is formed in an absorbent body made of an absorbent material containing pulp and an absorbent polymer, and crepe paper covering the absorbent body. The crepe paper is provided for maintaining the shape of the absorber, and a material that is less likely to expand than a top sheet or the like can be used. The crepe paper of Patent Document 1 is pulled outward in the width direction around the compressed groove when the compressed groove is raised on the skin facing surface side. When the crepe paper is difficult to elongate, the crepe paper may inhibit the deformation of the absorbent body, which may reduce the fit of the absorbent body. Moreover, when the crepe paper is difficult to extend and the compressed groove is formed, the absorbent material is pressed by the crepe paper, and the periphery of the compressed groove may become hard. If the periphery of the compressed groove becomes too hard, the periphery of the compressed groove becomes difficult to deform, and the fit to the body may not be improved. Moreover, when the rigidity around the compressed groove becomes too high, a sense of incongruity at the time of wearing may occur.

  This invention is made | formed in view of the above-mentioned subject, and it aims at providing the absorbent article which can suppress the discomfort at the time of wear and can improve the fitting property with respect to a body.

  An absorbent article (absorbent article 1) according to the present disclosure includes a thickness direction (thickness direction), a first direction and a second direction perpendicular to the thickness direction and perpendicular to each other, and an absorbent core having an absorbent material ( An absorbent core 31), a cover sheet (cover sheet 32) and a skin sheet (top sheet 11) disposed on the skin-facing surface side of the absorbent core, and at least the absorbent core and the cover sheet, It is an absorbent article which has the pressing groove (1st pressing groove 81) extended in a 1st direction, Comprising: The elongation in the said 2nd direction of the said cover sheet is the elongation in the said 2nd direction of the said skin sheet. The gist is that a rupture portion (rupture portion 33) where the cover sheet is ruptured is provided outside the squeezing groove in the second direction with respect to the center in the second direction.

  According to the absorbent article according to the present invention, it is possible to suppress a sense of incongruity at the time of wearing, and to improve fit to the body.

It is a top view of an absorptive article in one embodiment. It is sectional drawing of the absorbent article along the AA line shown in FIG. It is an enlarged view of the X part shown in FIG. It is a top view of an absorber. It is sectional drawing of the absorbent article along the BB line shown in FIG. It is sectional drawing of the absorbent article of the wearing condition on the basis of the AA line of FIG.

At least the following matters will become apparent from the description of the present specification and the accompanying drawings.

Thickness direction,
A first direction and a second direction orthogonal to the thickness direction and orthogonal to each other;
An absorbent core having an absorbent material;
A cover sheet and a skin surface sheet disposed on the skin facing surface side of the absorbent core;
An absorbent article having at least the absorbent core and the compressed groove formed in the cover sheet and extending in the first direction,
The elongation in the second direction of the cover sheet is lower than the elongation in the second direction of the skin sheet,
The absorbent article in which the fracture | rupture part which the said cover sheet fractured | ruptured is provided in the outer side of the said 2nd direction with respect to the center of the said 2nd direction of the said pressing groove.

  According to such an absorbent article, the cover sheet is pulled in a second direction orthogonal to the first direction when forming the compressed groove along the first direction. The cover sheet has a broken portion. A fracture | rupture part is located in the outer side of the 2nd direction with respect to the center of the 2nd direction of a pressing groove. Therefore, when the cover sheet is pulled in the second direction at the time of forming the compressed groove, the cover sheet extends in the second direction due to the deformation of the fracture portion. By extending the cover sheet in the second direction, it is possible to suppress the absorbent material from being compressed by the cover sheet and to suppress the absorbent material around the compressed groove from becoming too hard. Therefore, the circumference | surroundings of a pressing groove can be deform | transformed flexibly and the fitting property with respect to a body can be improved. Moreover, the rigidity around the compressed groove does not become too high, and a sense of incongruity when worn can be suppressed.

  Moreover, when an absorption core deform | transforms on the basis of the pressing groove along a 1st direction at the time of wear, a cover sheet and a skin surface sheet will be pulled in a 2nd direction. At this time, the skin sheet has a higher degree of elongation than the cover sheet, elongates along with the deformation of the absorbent core, and does not hinder the deformation of the absorbent core. On the other hand, the cover sheet has a lower elongation than the skin sheet, but can be extended in the second direction by deformation of the fracture portion, and does not hinder the deformation of the absorbent core. Therefore, the absorption core can be deformed with the squeezing groove as a base point, and the fit to the body can be enhanced.

Such an absorbent article,
As for the above-mentioned fracture part, it is desirable to be located in the pressing field dented in the thickness direction by the above-mentioned pressing groove.

  The pressing area of the cover sheet is an area that is pulled with the formation of the pressing groove and is recessed in the thickness direction. Since the fracture | rupture part is formed in the pressing area | region, a cover sheet | seat tends to expand | extend with a deformation | transformation of a fracture | rupture part at the time of formation of a pressing groove. Therefore, it can suppress more that an absorption material is compressed with a cover sheet at the time of formation of a pressing groove.

Such an absorbent article,
The absorbent core is deformed with the compressed groove as a base point, and is configured to be raised on at least one side of the skin facing surface side and the non-skin facing surface side,
As for the above-mentioned fracture part, it is desirable to be provided in the above-mentioned cover sheet arranged on the above-mentioned one side rather than the above-mentioned absorption core.

  According to such an absorbent article, when the absorbent core is deformed so as to be raised on one side, the cover sheet disposed on one side of the absorbent core is pulled in the second direction. Since the break portion is formed in the cover sheet disposed on one side of the absorbent core, the cover sheet does not hinder the deformation of the absorbent core. Accordingly, the absorbent core is more easily deformed with the compressed groove as a base point, and the fit to the body can be enhanced.

Such an absorbent article,
The cover sheet is preferably disposed between the skin sheet and the absorbent core.

  In the configuration in which the cover sheet is provided between the skin sheet and the absorbent core, the absorbent core is easily compressed by the cover sheet when the cover sheet does not extend. Since the break portion is provided in the cover sheet, it is possible to suppress the absorption core from being compressed by the cover sheet and to suppress the absorption material around the compressed groove from becoming too hard.

Such an absorbent article,
The absorbent core has a high weight area, and a low weight area in which the weight of the absorbent material is lower than the high weight area,
The compressed groove is preferably provided in a region overlapping with the low weight area.

  According to such an absorbent article, the compressed groove formed in the low weight area is less likely to be harder than the compressed groove formed in the high weight area. Therefore, the circumference | surroundings of a pressing groove can be deform | transformed flexibly and the fitting property with respect to a body can be improved more. Moreover, it can suppress that the rigidity around a pressing groove becomes high too much, and can suppress the discomfort at the time of wear more.

Such an absorbent article,
The absorbent core has a high weight area, and a low weight area in which the weight of the absorbent material is lower than the high weight area,
It is desirable that the break portion is provided in a region overlapping the low weight area.

  According to such an absorbent article, the low basis weight area has a lower basis weight of the absorbent core than the high basis weight area, and is configured to be easily deformed when worn. The cover sheet has a rupture portion disposed in an area overlapping the low weight area, and is flexibly deformed as the low weight area is deformed. The absorbent core can be deformed more flexibly, and the fit to the body can be further enhanced.

Such an absorbent article,
On both outer sides in the second direction than the compressed groove, at least the absorbent core and the second compressed groove formed in the cover sheet,
The density of the second pressing groove is preferably higher than the density of the pressing groove.

  According to such an absorbent article, an absorber and a cover sheet are compressed by the 2nd pressing groove, and the delamination of an absorber is suppressed. Moreover, the density of a 2nd pressing groove is higher than the density of a 1st pressing groove, and a rigidity difference arises between a 2nd pressing groove and a pressing groove. In addition, the cover sheet is pulled toward the second pressing groove when the second pressing groove is formed. Therefore, the area | region around a pressing groove is pulled to the outer side of a 2nd direction, and the density of an absorbent material becomes low. By increasing the difference in rigidity between the area around the compressed groove and the area around the second compressed groove, it is easier to deform when using the compressed groove and the second compressed groove as a base point, and the fit can be improved. Moreover, when the rigidity of the area | region of the periphery of the pressing groove which protrudes to a wearer side becomes low, the hit with respect to a wearer can be eased and a discomfort can be suppressed more.

Such an absorbent article,
The second pressing groove is preferably formed in the skin sheet, the absorbent core, and the cover sheet.

  According to such an absorbent article, the density of the 2nd pressing groove becomes higher compared with the structure where the 2nd pressing groove was formed only in the absorption core and the cover sheet. Therefore, the difference in rigidity between the compressed groove and the second compressed groove is increased, and it is easier to be deformed using the compressed groove and the second compressed groove as a base point when worn, and the fit can be improved.

=== About the absorbent article which concerns on this Embodiment ===
Hereinafter, an absorbent article according to an embodiment will be described with reference to the drawings. The absorbent article may be any absorbent article such as a panty liner (corimono sheet), a sanitary napkin, an incontinence pad, or a disposable diaper. In the following embodiments, a disposable sanitary napkin will be described as an example of an absorbent article.

  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. Moreover, the part from which the relationship and ratio of a mutual dimension differ also in between drawings may be contained.

(1) Overall Configuration of Absorbent Article FIG. 1 is a plan view of the absorbent article in one embodiment. FIG. 2 is a cross-sectional view of the absorbent article taken along line AA in FIG. FIG. 3 is an enlarged view of a portion X shown in FIG. FIG. 4 is a plan view of the absorber. FIG. 5 is a cross-sectional view of the absorber taken along line B-B in FIG. 1.

  The absorbent article 1 has a longitudinal direction L and a width direction W perpendicular to each other, and a thickness direction T extending from the skin facing surface side T1 of the wearer to the non-skin facing surface side T2. The skin facing surface side T1 corresponds to the side facing the wearer's skin when in use. The non-skin facing surface side T2 corresponds to a side opposite to the skin facing surface side T1, that is, a side facing away from the wearer's skin when used.

  The absorbent article 1 has a crotch region S1, a front side region S2, and a rear side region S3. The crotch region S1 is a region facing the excretion opening of the wearer, for example, the vaginal opening. When the absorbent article 1 is attached to the underwear, the crotch region S1 is a region that is disposed between the legs of the wearer and is disposed between the legs of the wearer. The front side area S2 is located in front of the crotch area S1. The front end edge of the front side region S2 defines the front end edge of the absorbent article 1. The rear side region S3 is located behind the crotch region S1. The rear edge of the rear side region S3 defines the rear edge of the absorbent article 1.

  The absorbent article 1 has a wing 3 and a 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 body 30 in the crotch region S1. The wing 3 is provided in the crotch region S1. 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 defines a boundary between the crotch region S1 and the front side region S2. 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 defines a boundary between the crotch region S1 and the rear side region S3. The center in the longitudinal direction L of the crotch region S1 coincides with the center in the longitudinal direction of the wing. The hip flap 4 is provided in the rear side region S3.

  The absorbent article 1 includes a skin sheet 10, a non-skin sheet 20, and an absorber 30. The skin sheet 10 is provided on the skin facing surface side T <b> 1 from the absorbent body 30. The skin sheet 10 includes a top sheet 11 and a side sheet 12. The top sheet 11 is a liquid-permeable sheet that transmits liquid such as body fluid. The side sheet 12 covers the outer edge of the top sheet 11 in the width direction W, and extends outward in the width direction W from the top sheet 11. The non-skin surface sheet 20 is a liquid-impermeable sheet. The non-skin surface sheet 20 is provided closer to the non-skin facing surface side T2 than the absorber 30.

  The absorber 30 is provided between the skin sheet 10 and the non-skin sheet 20. The absorber 30 is arranged at least in the crotch region S1 and the rear side region S3. The absorbent body 30 includes an absorbent core 31 made of an absorbent material that absorbs liquid, and a cover sheet 32 that wraps the absorbent core. The absorber 30 has a low weight area 41 and a high weight area 42. Here, the “low weight area” means a region composed of the absorbent core 31 having a lower basis weight than the surrounding absorbent core 31 or a region not having the absorbent core 31. The high basis weight area 42 is an area having a higher basis weight than the low basis weight area 41. The configuration of the absorber 30 will be described in detail later.

  A compressed groove is formed in the absorbent article. The compressed groove is formed by compressing at least the top sheet 11 that is the skin sheet 10 and the cover sheet 32 in the thickness direction T. In the compressed groove of the present embodiment, the top sheet 11, the cover sheet 32, and the absorbent core 31 are compressed in the thickness direction, and at least a part of the top sheet 11, the cover sheet 32, and the absorbent core 31 is integrated. Yes. The pressing groove has at least a first pressing groove 81 and a second pressing groove 82. The 1st pressing groove 81 and the 2nd pressing groove 82 are provided in back side area S3. The 1st pressing groove 81 is a pressing groove in this invention. The 1st pressing groove 81 is extended in the longitudinal direction L as a 1st direction. The second squeezing groove 82 is provided at a distance from the first squeezing groove 81 on both outer sides in the width direction W which is the second direction than the first squeezing groove 81.

  The first pressing groove 81 is formed in the low weight area 41. The second pressing groove 82 is formed in the high weight area 42 (area other than the low weight area). Therefore, the density of the absorbent material in the second compressed groove 82 is higher than the density of the absorbent material in the first compressed groove 81. Further, the cover sheet 32 positioned around the second pressing groove 82 is not formed with a break portion 33 described later, and does not extend when the second pressing groove 82 is formed. Therefore, the density of the absorbent material around the second compressed groove 82 is higher than the density of the absorbent material around the first compressed groove 81. The rigidity of the region where the second pressing groove 82 is formed is higher than the rigidity of the region where the first pressing groove 81 is formed.

  By having the 1st pressing groove 81 and the 2nd pressing groove 82 which were comprised in this way, when the force which goes to the inner side of the width direction from the outer side of the width direction W was applied to the absorbent article 1 at the time of wear, it is 2nd. A region between the second compressed grooves 82 is raised on the wearer side with the compressed groove 82 as a base point, and the first compressed groove 81 is deformed so as to be a vertex (see FIG. 6). The rear side area S3 of the absorbent article 1 fits into the gap between the wearer's buttocks, and the fit to the body can be enhanced. Moreover, since the rigidity of the absorber 30 around the 1st pressing groove 81 is comparatively low, the absorber around the 1st pressing groove 81 deform | transforms flexibly, the contact | win with respect to a body is soft, and the discomfort at the time of wear can be suppressed. .

(2) Detailed structure of absorber Next, the structure of the absorber 30 is demonstrated more concretely. The cover sheets 32 are disposed on both sides of the skin facing surface side T1 and the non-skin facing surface side T2 of the absorbent core 31. The top sheet 11 of the present embodiment is made of non-woven fabric, and the cover sheet 32 is made of tissue. The cover sheet 32 is configured to be more difficult to extend than the top sheet 11. In the width direction (second direction) orthogonal to the longitudinal direction in which the first pressing groove 81 extends, the elongation of the cover sheet 32 is lower than the elongation of the top sheet 11. Here, “elongation” is the tensile strength of the sheet and can be measured using a tensile tester (manufactured by Shimadzu Corporation). Specifically, a test piece obtained by cutting a top sheet and a cover sheet into a size of 14 mm × 40 mm is cut out and measured under a setting condition of a chuck tensile speed of 100 mm / min to obtain a value of elongation at break. The measurement is performed three times, and the average value is defined as the elongation of each sheet.

  The cover sheet 32 is formed with a fracture portion 33. The breaking portion 33 is formed on both the cover sheet 32 located on the skin facing surface side T1 from the absorbent core 31 and the cover sheet 32 located on the non-skin facing surface side T2 from the absorbent core 31. The rupture portion 33 is a portion where the cover sheet 32 is ruptured, has a lower rigidity than the region where the rupture portion 33 is not formed, and is easily deformed. The length of the breakage portion 33 is not particularly limited, but it is preferable that the SAP contained in the absorbent material does not spill through the breakage portion. The break region R33 is a region where the break portion 33 is formed. A plurality of rupture portions 33 are provided irregularly in the rupture region R33. The breaking portion 33 is provided at least on the outer side in the width direction with respect to the center in the width direction of the first pressing groove 81. The fracture region R <b> 33 extends in the longitudinal direction L similarly to the first pressing groove 81.

  The fracture portion 33 is formed by stretching the absorber 30. More specifically, the breaking portion 33 is formed by sandwiching the absorber 30 in the thickness direction T by a pair of stretching rolls and stretching the absorber 30. As the pair of stretching rolls, a configuration in which a convex portion extending in the longitudinal direction is formed on one stretching roll and a concave portion that meshes with the convex portion is formed on the other stretching roll can be adopted. Further, by stretching the absorbent body 30 with a pair of stretching rolls, the absorbent core 31 is stretched at least in the width direction W, and the density of the absorbent material in the stretched region is reduced. Therefore, the density of the absorbent material in the fracture region R33 is lower than the density of the absorbent material in the region adjacent to the fracture region R33. B30 shown in FIG. 5 indicates a boundary where the density of the absorbent material changes. The boundary B30 is an outer edge of the fracture region R33. The density of the absorbent material in the region on the inner side in the width direction from the boundary B30 is lower than the density of the absorbent material in the region on the outer side in the width direction than the boundary B30. In addition, the fracture region R33 is provided in the low basis weight region 41. The length in the width direction W of the low weight area 41 is longer than the length in the width direction W of the fracture area R33. As shown in FIG. 5, the absorbent body 30 has a breakage area R33, an area where the breakage area R33 and the absorbent material have the same basis weight, and a higher density of the absorbent material than the breakage area R33 (in the low weight area). And an area outside the fracture area) R34 and an area of the absorbent material higher than the fracture area R33 and a density of the absorbent material higher than the fracture area R33 (area outside the low mass area) R35. It is provided adjacent to the width direction. The absorber 30 has the lowest rigidity in the center region in the width direction, and the rigidity increases toward the outer side in the width direction. Therefore, at the time of wearing, the central region in the width direction of the absorbent body is easily raised on the wearer side with the lateral side portion as a base point, and the absorbent body 30 is easily fitted in the gap between the wearer's buttocks.

  The breaking portion 33 is formed in the pressing region R81 that is recessed in the thickness direction by the first pressing groove 81, and is not formed in the region that is recessed in the thickness direction by the second pressing groove 82. It suffices that at least a part of the breaking part 33 is formed in at least a part of the compressed region R81. Here, the pressing region R81 is a region recessed in the thickness direction by the first pressing groove 81. The pressing region R81 is a region in which the skin facing surface of the top sheet 11 is non-parallel to the second direction and the skin facing surface of the top sheet 11 extends toward the non-skin facing surface side. Specifically, the range of the pressing area can be obtained by the following method. (1) The absorbent article in which the 1st pressing groove was formed is cut | disconnected by the cross section extended in the 2nd direction orthogonal to the 1st direction where a 1st pressing groove extends. (2) The cross section of the cut absorber is observed with an electron microscope such as a scanning electron microscope, and the direction in which the skin facing surface of the top sheet 11 extends is measured. (3) Let the area | region where the skin opposing surface of a top sheet is non-parallel with respect to a 2nd direction, and the skin opposing surface of the top sheet 11 extends toward the non-skin opposing surface side be a pressing area | region.

  The fracture | rupture part 33 is arrange | positioned at the outer side of the width direction with respect to the center of the width direction which is the 2nd direction of the 1st pressing groove 81 at least. When forming the 1st pressing groove 81, the top sheet 11 and the absorber 30 are compressed in the thickness direction in the state which laminated | stacked the top sheet 11 and the absorber 30. FIG. The cover sheet 32 and the top sheet 11 are pulled in the width direction W that is at least the second direction when the first compressed groove 81 is formed. More specifically, the cover sheet 32 is pulled in the width direction in the state before the first pressing groove 81 is formed, and when forming the first pressing groove 81 recessed in the thickness direction, the cover sheet 32 has a width direction W and a thickness. Pulled in direction T. At this time, since the break portion 33 is formed on the outer side in the width direction with respect to the center of the first compression groove 81 in the width direction, the cover sheet 32 is formed in the width direction by deformation of the break portion 33 when the first compression groove 81 is formed. Extend to W. Further, the top sheet 11 has a higher elongation than the cover sheet 32 and extends in the width direction when the top sheet 11 is pulled when the first pressing groove 81 is formed. In the fracture | rupture area | region R33, it is suppressed that an absorbent material is compressed with the cover sheet 32 and the top sheet 11. FIG. Moreover, the fracture | rupture part 33 is formed in the pressing area | region R81. The compressed region R81 is compressed when the first compressed groove 81 is formed, and the rigidity is likely to increase. Since the fracture | rupture part 33 is formed in the said pressing area | region R81, it can suppress that the circumference | surroundings of the 1st pressing groove 81 become hard too much. The circumference | surroundings of the 1st pressing groove 81 can deform | transform flexibly and can improve the fitting property with respect to a body. The rigidity around the first squeezing groove 81 does not become too high, and the uncomfortable feeling at the time of wearing can be suppressed. Moreover, the circumference | surroundings of the 1st pressing groove 81 are not compressed too much by expansion | extension of the cover sheet 32 and the top sheet 11, and it is easy to maintain the thickness before formation of the 1st pressing groove 81. FIG. Therefore, the thickness difference between the region where the first compressed groove 81 is formed and the region around the first compressed groove 81 is increased, and the absorbent body is easily deformed with the first compressed groove 81 as the apex, so that it is more fit. And the gap between the absorbent article and the body can be reduced.

  In order to prevent the absorbent core 31 from becoming hard when the first compressed groove 81 is formed, it is preferable that the break portion 33 is formed in the cover sheet 32 disposed between the top sheet 11 and the absorbent core 31. . By providing the break portion 33 in the cover sheet 32, it is possible to suppress the absorption core 31 from being compressed by the cover sheet 32, and to suppress the absorption core 31 around the first compressed groove 81 from becoming too hard.

  Moreover, as shown in FIG. 6, when the absorbent core 31 is deformed so that the first compressed groove 81 is a vertex when worn, the cover sheet 32 and the top sheet 11 are pulled in the width direction W. At this time, the top sheet 11 has a higher degree of elongation than the cover sheet 32 and extends along with the deformation of the absorbent core, and does not hinder the deformation of the absorbent core. On the other hand, the cover sheet 32 has a lower elongation than the top sheet 11, but can be extended in the width direction by the deformation of the fracture portion 33, and does not hinder the deformation of the absorbent core 31. Therefore, the absorption core 31 can deform | transform so that it may protrude from the 1st pressing groove 81, and can improve the fitting property with respect to a body.

  Thus, in order not to inhibit the deformation of the absorbent core 31 at the time of wearing, the break portion 33 is a cover sheet 32 located on the side where the absorbent core 31 is raised (in this embodiment, the skin facing surface side T1). Is preferably provided. When the absorbent core 31 is deformed so as to rise to one side, the cover sheet 32 disposed particularly on one side of the absorbent core 31 is pulled in the width direction W that is the second direction. Since the break portion 33 is formed in the cover sheet 32 disposed on one side of the absorbent core 31, the cover sheet 32 does not hinder the deformation of the absorbent core 31. Therefore, the absorption core 31 can deform | transform using the 1st pressing groove 81 as a base point, and can improve the fitting property with respect to a body.

  Further, the breaking portion 33 is provided in a region overlapping with the low weight area 41. The length in the width direction W of the fracture region R33 is shorter than the length in the width direction of the low weight area 41 in the cross section shown in FIG. 2 and longer than the length in the width direction of the first pressing groove 81. The low basis weight area 41 is configured so that the weight of the absorbent core 31 is lower than that of the high weight area 42 and is easily deformed when worn. Since the cover sheet 32 includes the fractured portion 33 arranged in a region overlapping the low weight area 41, the cover sheet 32 can be flexibly deformed with the deformation of the low weight area 41. The absorbent core 31 can be deformed more flexibly with the first compressed groove 81 as a base point, and the fit to the body can be further enhanced.

  In the absorbent article 1, second compressed grooves 82 are formed on both outer sides in the width direction of the first compressed grooves 81. As described above, the rigidity around the first pressing groove 81 is lower than the rigidity around the second pressing groove 82. Moreover, the area | region of the circumference | surroundings of the 1st pressing groove 81 is the outer side of the width direction W which is a 2nd direction with formation of a 2nd pressing groove by forming the 2nd pressing groove 82 with the 1st pressing groove 81. And the density of the absorbent material is lowered, making it more flexible as compared to the area around the second compressed groove 82. By increasing the difference in rigidity between the area around the first compressed groove 81 and the area around the second compressed groove 82, the first compressed groove 81 and the second compressed groove 82 are more easily deformed from the base point when worn, Fit can be improved. Moreover, the rigidity of the area | region of the circumference | surroundings of the 1st pressing groove 81 which protrudes to a wearer side becomes lower, can reduce the contact | win with a wearer more, and can suppress discomfort.

  Moreover, in order to form the difference in rigidity and thickness between the region around the first pressing groove 81 and the region around the second pressing groove 82 more significantly, the following configurations can be combined. Specifically, a configuration in which the breaking portion 33 is provided in the pressing region by the first pressing groove 81 and the breaking portion 33 is not provided in the pressing region by the second pressing groove 82. A configuration in which the first pressing groove 81 is formed in the low weight area 41 and the second pressing groove 82 is formed in the high weight area 42. The structure which forms the 1st pressing groove 81 only in the absorber 30, and forms the 2nd pressing groove 82 in the absorber 30 and the skin surface sheet 10. FIG. By forming the 1st pressing groove 81 only in the absorber 30, and forming the 2nd pressing groove 82 in the absorber 30 and the skin sheet 10, the density of the 2nd pressing groove 82 is higher than the density of the 1st pressing groove 81. And the difference in rigidity between the first pressing groove 81 and the second pressing groove 82 is increased. Moreover, the compression amount (the length of the thickness direction) of the 2nd pressing groove 82 is formed by forming the 1st pressing groove 81 only in the absorber 30, and forming the 2nd pressing groove 82 in the absorber 30 and the skin sheet 10. ) Becomes larger than the compression amount of the first pressing groove 81, the periphery of the second pressing groove 82 is more easily compressed by the cover sheet 32 than the periphery of the first pressing groove 81, and the area around the first pressing groove 81 A thickness difference with the area | region of the circumference | surroundings of the 2nd pressing groove 82 becomes large.

  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. In the embodiment, the first direction is parallel to the longitudinal direction and the second direction is parallel to the width direction. However, the first direction according to the present invention may be inclined in the longitudinal direction, and the width. It may be along the direction.

1: Absorbent article 10: Skin sheet 11: Top sheet 12: Side sheet 20: Non-skin sheet 30: Absorbent body 31: Absorbing core 32: Cover sheet 81: First pressing groove 82: Second pressing groove S1: Inseam area S2: Front side area S3: Rear side area L: Longitudinal direction T: Thickness direction T1: Skin facing surface side T2: Non-skin facing surface side W: Width direction

Claims (8)

Thickness direction,
A first direction and a second direction orthogonal to the thickness direction and orthogonal to each other;
An absorbent core having an absorbent material;
A cover sheet and a skin surface sheet disposed on the skin facing surface side of the absorbent core;
An absorbent article having at least the absorbent core and the compressed groove formed in the cover sheet and extending in the first direction,
The elongation in the second direction of the cover sheet is lower than the elongation in the second direction of the skin sheet,
The absorbent article in which the fracture | rupture part which the said cover sheet fractured | ruptured is provided in the outer side of the said 2nd direction with respect to the center of the said 2nd direction of the said pressing groove.   The absorbent article according to claim 1, wherein the fracture portion is located in a pressing region that is recessed in the thickness direction by the pressing groove. The absorbent core is deformed with the compressed groove as a base point, and is configured to be raised on at least one side of the skin facing surface side and the non-skin facing surface side,
The absorptive article according to claim 1 or 2 with which said fracture part is provided in said cover sheet arranged on said one side rather than said absorption core.   The absorptive article according to any one of claims 1 to 3 in which said cover sheet is arranged between said skin sheet and said absorption core. The absorbent core has a high weight area, and a low weight area in which the weight of the absorbent material is lower than the high weight area,
The absorptive article according to any one of claims 1 to 4, wherein the compressed groove is provided in a region overlapping with the low weight area. The absorbent core has a high weight area, and a low weight area in which the weight of the absorbent material is lower than the high weight area,
The absorptive article according to any one of claims 1 to 5 in which said fracture part is provided in a field which overlaps said low basis weight field. On both outer sides in the second direction than the compressed groove, at least the absorbent core and the second compressed groove formed in the cover sheet,
The absorbent article according to any one of claims 1 to 6, wherein a density of the second pressing groove is higher than a density of the pressing groove.   The absorbent article according to claim 7, wherein the second compressed groove is formed in the skin sheet, the absorbent core, and the cover sheet.

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