Absorbent article

Abstract

Provided is an absorbent article which suppresses deterioration in wearing feel when absorbing bodily fluids, ensures a space in which a highly absorbent polymer swells, and can effectively utilize the absorption capacity. An absorbent article (1) is provided with an absorbent body (40) disposed at least in a crotch region. The absorbent body has an absorbent sheet (45) that covers the skin-side and non-skin-side of the highly absorbent polymer with a sheet. The absorbent sheet has a first absorbent sheet (451) and a second absorbent sheet (452) disposed closer to the skin side than the first absorbent sheet. The first absorbent sheet has a first compressed part (471). The second absorbent sheet has a second compressed section (472). A plurality of the first compression parts and the second compression parts are arranged at intervals in the front-back direction and the width direction in a plan view of the absorption sheet. At least the crotch region is provided with a non-overlapping region (NR) in which the first compressed section and the second compressed section do not overlap in the thickness direction.

Description

Technical Field

[0001] The present invention relates to an absorbent article having an absorbent sheet that covers a superabsorbent polymer on the skin side and the non-skin side in the thickness direction using a sheet. Background Art

[0002] In Patent Document 1, an absorbent article is disclosed in which an absorbent sheet that covers a superabsorbent polymer on the skin side and the non-skin side in the thickness direction is laminated. The absorbent sheet sandwiches the superabsorbent polymer with a plurality of sheets, and the sheets are joined to each other by a sealing portion. The absorbent sheet is divided into a plurality of regions by the sealing portion, and the superabsorbent polymer is disposed in each divided region. By providing the sealing portion, each water-absorbing resin existing region in which the superabsorbent polymer is disposed exists independently.

[0003] Prior art documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 2004-186273 Summary of the Invention

[0006] Problems to be Solved by the Invention

[0007] However, the above Patent Document 1 has the following problems.

[0008] The superabsorbent polymer is disposed in a region (a region where the sealing portion is not provided) divided by the sealing portion. The region divided by the sealing portion swells due to the swelling of the superabsorbent polymer when absorbing body fluid, its thickness becomes thick, and its stiffness increases with the absorption amount. On the other hand, the superabsorbent polymer is not disposed in the region where the sealing portion is provided. In the region where the sealing portion is provided, it is difficult for the superabsorbent polymer to swell when absorbing body fluid, and it is difficult to generate changes in its thickness and stiffness. In addition, the region where the sealing portion is provided does not open the joining of the sheets due to the swelling of the superabsorbent polymer. Therefore, when the superabsorbent polymer swells, the region divided by the sealing portion is difficult to bend, the followability to the body deteriorates, and the wearing feeling is likely to decrease. In addition, in the overlapping region of the regions divided by the sealing portion, even if the superabsorbent polymers disposed separately are to swell, since the thicknesses of the regions overlapping in the thickness direction become large, sometimes a swelling space cannot be ensured, the superabsorbent polymer cannot absorb body fluid, and the absorption capacity cannot be effectively utilized.

[0009] The present invention has been made in view of such problems, and an object thereof is to provide an absorbent article that suppresses deterioration of the wearing feeling when absorbing body fluid and ensures a swelling space for the superabsorbent polymer, thereby enabling effective utilization of the absorption capacity.

[0010] Solution for Solving Problems

[0011] An absorbent article of a technical solution includes: a front-back direction, a width direction, and a thickness direction that are orthogonal to each other; a crotch region disposed in the crotch of the wearer, a front side region located at a position anterior to the crotch region, and a rear side region located at a position posterior to the crotch region; and an absorbent body disposed at least in the crotch region. The absorbent body has an absorbent sheet that covers the skin side and the non-skin side of the superabsorbent polymer in the thickness direction by means of a sheet. The absorbent sheet has a first absorbent sheet and a second absorbent sheet disposed at a position closer to the skin side than the first absorbent sheet. The first absorbent sheet has a first compression portion formed by compressing the sheets covering the skin side and the non-skin side of the superabsorbent polymer toward the inside in a direction facing each other from the outer surface in the thickness direction of the first absorbent sheet. The second absorbent sheet has a second compression portion formed by compressing the sheets covering the skin side and the non-skin side of the superabsorbent polymer toward the inside in a direction facing each other from the outer surface in the thickness direction of the second absorbent sheet. A plurality of the first compression portions and the second compression portions are arranged at intervals in the front-back direction and the width direction when the absorbent sheet is viewed from above. At least in the crotch region, there is a non-overlapping region where the first compression portion and the second compression portion do not overlap in the thickness direction. Description of the Drawings

[0012] Figure 1 is a top view of the absorbent article of the embodiment as viewed from the skin side.

[0013] Figure 2 is a top view of the absorbent article of the embodiment as viewed from the non-skin side.

[0014] Figure 3 is along Figure 1 the cross-sectional view taken along line A-A shown.

[0015] Figure 4 is along Figure 1 the cross-sectional view taken along line B-B shown.

[0016] Figure 5 is Figure 3 the schematic enlarged view of part C shown.

[0017] Figure 6 is a top view of the absorbent body.

[0018] Figure 7 is a top view of the absorbent sheet.

[0019] Figure 8 is a cross-sectional view of the absorbent article schematically showing the wearing state.

[0020] Figure 9 is Figure 3 a schematic enlarged view of part D shown in the figure.

[0021] Figure 10 is a view showing the arrangement pattern of the side sheets.

[0022] Explanation of reference numerals

[0023] 1. Absorbent article; 5. Wing; 11. Skin side sheet (top sheet); 20. Non-skin side sheet (side sheet); 21. First non-skin side sheet (first side sheet); 211. First area; 212. Second area; 22. Second non-skin side sheet (second side sheet); 23. Third non-skin side sheet (bottom sheet); 25. Auxiliary sheet; 30. Non-skin side joint; 31. Crotch joint; 32. Front and rear joint; 35. Skin side joint; 40. Absorbent body; 41. Absorbent core; 44. Superabsorbent polymer; 45. Absorbent sheet (auxiliary absorbent layer); 46. Sheet pressing part; 461. First sheet pressing part; 462. Second sheet pressing part; 471. First compression part; 472. Second compression part; 48. Sheet; 60. Fixing part; 61. Main body fixing part; 611. First main body fixing part; 612. Second main body fixing part; 81. Main body pressing part; 811. Outer pressing part; 812. Inner pressing part; 82. Pressing composition part; 90. Side sheet; 91. First side sheet; 92. Second side sheet; 321. First front and rear joint; 322. Second front and rear joint; 451. First absorbent sheet; 452. Second absorbent sheet; 471. First compression part; 472. Second compression part; L. Front and rear direction; NR. Non-overlapping area; R45. Side area; R41. Laminated area; R42. Auxiliary area; R91. Wrapping area; R92. Protruding area; RC. Central area; RS. Outer area; S. Wearing article; S1. Front side area; S2. Rear side area; S3. Crotch area; T. Thickness direction; T1. Skin side; T2. Non-skin side; W. Width direction. Detailed implementation mode

[0024] (1) Summary of the implementation mode

[0025] According to the description in this specification and the drawings, at least the following matters are clarified.

[0026] The absorbent article of Mode 1 includes: a longitudinal direction, a width direction, and a thickness direction that are orthogonal to each other; a crotch region disposed in the crotch of the wearer, a front region located at a position anterior to the crotch region, and a rear region located at a position posterior to the crotch region; and an absorbent body disposed at least in the crotch region. The absorbent body has an absorbent sheet that covers the skin side and the non-skin side of the superabsorbent polymer in the thickness direction by means of a sheet. The absorbent sheet has a first absorbent sheet and a second absorbent sheet disposed at a position closer to the skin side than the first absorbent sheet. The first absorbent sheet has a first compression portion formed by compressing the sheets covering the skin side and the non-skin side of the superabsorbent polymer toward the inside in a direction facing each other from the outer surfaces in the thickness direction of the first absorbent sheet. The second absorbent sheet has a second compression portion formed by compressing the sheets covering the skin side and the non-skin side of the superabsorbent polymer toward the inside in a direction facing each other from the outer surfaces in the thickness direction of the second absorbent sheet. A plurality of the first compression portions and the second compression portions are arranged at intervals in the longitudinal direction and the width direction when the absorbent sheet is viewed from above. At least in the crotch region, there is a non-overlapping region where the first compression portion and the second compression portion do not overlap in the thickness direction.

[0027] According to this mode, by providing the non-overlapping region, the situation of local increase in stiffness is suppressed, the unintentional deformation based on the portion with higher stiffness is suppressed, and the discomfort caused by the portion with higher stiffness can be suppressed. In addition, a plurality of the first compression portions and the second compression portions are arranged at intervals in the longitudinal direction and the width direction when the absorbent sheet is viewed from above. Even when the first compression portion and the second compression portion overlap, the overlapping regions are arranged at intervals and do not divide the region where the superabsorbent polymer is disposed as in the conventional form having a sealing portion. Therefore, the situation where the divided regions where the superabsorbent polymer swells are difficult to bend is not likely to occur, the deterioration of followability is suppressed, and the wearing feeling can be improved. And since a plurality of deformation bases formed by the first compression portion and the second compression portion are arranged at intervals when viewed from above, it is easy to deform softly using these deformation bases, improving the followability to the body and suppressing the deterioration of the wearing feeling when absorbing body fluids. In addition, in the non-overlapping region, since at least one of the first compression portion and the second compression portion is not disposed in the thickness direction, it is easy to ensure the space for swelling in the thickness direction, and the absorption capacity can be effectively utilized. And since the first compression portion and the second compression portion are arranged at intervals in the longitudinal direction and the width direction, the portions where the sheets approach each other by the first compression portion and the second compression portion do not linearly extend from one end to the other end of the absorbent sheet. Therefore, the superabsorbent polymer is likely to expand within the entire range when the absorbent sheet is viewed from above. Thus, it is configured to be able to ensure the space for the superabsorbent polymer to swell and effectively utilize the absorption capacity.

[0028] According to a preferred embodiment, based on the technical solution of Embodiment 1, the technical solution of Embodiment 2 may have the following features. In the non-overlapping region, there are a first non-overlapping region where the region having the first compression portion in the first absorbent sheet overlaps with the region where the second compression portion is not provided in the second absorbent sheet, a second non-overlapping region where the region where the first compression portion is not provided in the first absorbent sheet overlaps with the region having the second compression portion in the second absorbent sheet, and a third non-overlapping region where the region where the first compression portion is not provided in the first absorbent sheet overlaps with the region where the second compression portion is not provided in the second absorbent sheet. In the first non-overlapping region, the superabsorbent polymer in the second absorbent sheet is liable to swell and is liable to expand toward the skin side when absorbing body fluid. In the second non-overlapping region, the superabsorbent polymer in the first absorbent sheet is liable to swell and is liable to expand toward the non-skin side when absorbing body fluid. In the first non-overlapping region and the second non-overlapping region, the first absorbent sheet and the second absorbent sheet are liable to expand in opposite directions in the thickness direction, and no interference occurs between the regions, and it is easy to ensure the swelling region. The third non-overlapping region is liable to expand toward both the skin side and the non-skin side when absorbing body fluid, and it is easier to ensure the absorption capacity. By providing all of the first non-overlapping region, the second non-overlapping region, and the third non-overlapping region, the superabsorbent polymer is more liable to swell, and the absorption capacity can be further effectively utilized.

[0029] According to a preferred embodiment, based on the technical solution of Embodiment 1 or Embodiment 2, the technical solution of Embodiment 3 may have the following features. The shortest distance between the first compression portions and the shortest distance between the second compression portions in the plan view of the absorbent sheet are longer than the average diameter of the superabsorbent polymer in the state of being dehydrated by a centrifugal separator after being immersed in physiological saline for 60 minutes and drained for 15 minutes. According to this embodiment, the regions between the first compression portions and the regions between the second compression portions are regions not pressed by the compression portions, and are regions where the inter-fiber voids are relatively large and the superabsorbent polymer is liable to swell. Since the length in the plan view of this liable-to-swell region is longer than the average diameter of the swollen superabsorbent polymer, the superabsorbent polymer is liable to swell, and it is easier to effectively utilize the absorption capacity.

[0030] According to a preferred mode, based on the technical solution of any one of Modes 1 to 3, the technical solution of Mode 4 may have the following characteristics. The maximum size of the first compression portion and the maximum size of the second compression portion in a plan view of the absorbent sheet are longer than the average diameter of the superabsorbent polymer in a state where it has been immersed in physiological saline for 60 minutes, drained for 15 minutes, and then dehydrated using a centrifugal separator. According to this mode, the maximum size of the first compression portion and the maximum size of the second compression portion are smaller than the average diameter of the superabsorbent polymer when retaining water, suppressing the influence caused by the first compression portion and the second compression portion when the superabsorbent polymer retains water, and the superabsorbent polymer is liable to expand within the entire range in a plan view of the absorbent sheet.

[0031] According to a preferred mode, based on the technical solution of any one of Modes 1 to 4, the technical solution of Mode 5 may have the following characteristics. A sheet joint portion is formed, which compresses and joins the first absorbent sheet and the second absorbent sheet in the thickness direction and is arranged at intervals in the front-rear direction and the width direction when the absorbent sheet is viewed from above. When the absorbent sheet is viewed from above, the maximum size of the sheet joint portion is larger than the maximum size of the first compression portion and the maximum size of the second compression portion. According to this mode, since the maximum size of the sheet joint portion is relatively large, it is easy to maintain the joined state of the first absorbent sheet and the second absorbent sheet, suppressing the displacement of the absorbent sheets from each other and ensuring a non-overlapping area. In addition, since the maximum size of the first compression portion and the maximum size of the second compression portion are small, the influence caused by the first compression portion and the second compression portion when the superabsorbent polymer retains water is suppressed, and the superabsorbent polymer is liable to expand within the entire range in a plan view of the absorbent sheet.

[0032] According to a preferred mode, based on the technical solution of any one of Modes 1 to 5, the technical solution of Mode 6 may have the following characteristics. The absorbent body has an absorbent core in which cellulose-based fibers are at least laminated. In the width direction, the outer edge of the absorbent core is located at a position closer to the inside than the outer edge of the absorbent sheet. According to this mode, since the absorbent core does not overlap with the outer portion of the absorbent sheet, the thickness of the outer portion of the absorbent body can be reduced. Therefore, when absorbing body fluid, the outer portion of the absorbent sheet is liable to expand, and the absorption capacity of the absorbent sheet can be effectively utilized.

[0033] According to a preferred embodiment, based on the technical solution of Embodiment 6, the technical solution of Embodiment 7 may have the following features. The absorbent core is disposed across the center in the width direction of the absorbent article. The first absorbent sheet is disposed at a position closer to the non-skin side than the absorbent core. According to this embodiment, the absorbent core is disposed across the center in the width direction of the absorbent article at a position closer to the skin side than the first absorbent sheet, facilitating the absorption of body fluids discharged from the excretory opening. The first absorbent sheet is disposed at a position closer to the non-skin side than the absorbent core, further sucking the body fluids guided to the absorbent core toward the non-skin side, and facilitating the retention of body fluids by the absorbent core even in the case of repeated discharge of body fluids.

[0034] According to a preferred embodiment, based on the technical solution of Embodiment 6 or Embodiment 7, the technical solution of Embodiment 8 may have the following features. The second absorbent sheet is disposed at a position closer to the skin side than the absorbent core. According to this embodiment, when absorbing body fluids, the highly absorbent polymer in the second absorbent sheet disposed at a position closer to the skin side than the absorbent core swells, thereby being able to inhibit rewetting caused by the movement of temporarily absorbed body fluids toward the skin side. In addition, body fluids spreading in the planar direction are absorbed on the surface side of the absorbent article, and the transfer and leakage of body fluids can be inhibited.

[0035] According to a preferred embodiment, based on the technical solution of any one of Embodiments 1 to 8, the technical solution of Embodiment 9 may have the following features. In the width direction, the outer edges of the first absorbent sheet and the second absorbent sheet are offset. According to this embodiment, due to the existence of the outer edges of the first absorbent sheet and the second absorbent sheet, only one absorbent sheet is disposed in the outer portion of the absorbent sheet instead of two absorbent sheets. The thickness is inhibited by disposing one absorbent sheet in the outer portion of the absorbent sheet, and the stiffness can be reduced. The outer portion of the absorbent sheet is easily bent, contributing to a reduction in discomfort, and this portion is easily swollen when absorbing body fluids, enabling effective utilization of the absorption capacity.

[0036] According to a preferred embodiment, based on the technical solution of any one of Embodiments 1 to 9, the technical solution of Embodiment 10 may have the following features. The cellulose-based fibers and the superabsorbent polymer are simultaneously disposed between the sheets of the absorbent sheet. The unit area weight of the cellulose-based fibers in the absorbent sheet is less than the unit area weight of the superabsorbent polymer in the absorbent sheet. According to this embodiment, the situation where the superabsorbent polymer inadvertently flows due to the presence of the cellulose-based fibers is suppressed, and the superabsorbent polymer can be disposed within the entire range in the plan view of the absorbent sheet. The unit area weight of the cellulose-based fibers in the absorbent sheet may be less than the unit area weight of the superabsorbent polymer in the absorbent sheet. Since the unit area weight of the cellulose-based fibers is relatively low and the unit area weight of the superabsorbent polymer is relatively high, the absorption capacity can be ensured, and the thickness of the entire absorbent sheet can be suppressed. By suppressing the thickness of the entire absorbent sheet, the followability of the absorbent sheet to the body is improved, and the discomfort during wearing can be suppressed.

[0037] (2) Schematic Structure of the Absorbent Article of the Embodiment

[0038] Hereinafter, with reference to the drawings, the absorbent article 1 of the embodiment will be described. In addition, 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 diagrams, and the ratios of the respective dimensions are different from the actual ones. Therefore, specific dimensions and the like should be determined with reference to the following description. In addition, there may be parts with different relationships and ratios of the dimensions between the drawings. The absorbent article 1 may be an absorbent article such as a sanitary napkin, a panty liner, an incontinence pad, or a fecal pad. The absorbent article 1 is an article used by being worn on a wearing article such as underwear. The absorbent article 1 of the embodiment is a daily-use sanitary napkin and has a longitudinal shape.

[0039] Figure 1 is a plan view of the absorbent article 1 as viewed from the skin side T1. Figure 2 is a plan view of the absorbent article 1 as viewed from the non-skin side T2. Figure 3 is along Figure 1 the cross-sectional view taken along the line A - A shown.

[0040] Figure 4 is along Figure 1 the cross-sectional view taken along the line B - B shown. Figure 5 is Figure 3The absorbent article 1 is an enlarged view of the C portion shown. Here, the "skin side" corresponds to the side facing the wearer's skin during use. The "non-skin side" corresponds to the side facing the wearer's skin during use. The absorbent article 1 has a front-to-back direction L, a width direction W, and a thickness direction T that are orthogonal to each other. In the front-to-back direction L of the absorbent article 1, the side that contacts the wearer's lower abdomen is called the "front side", and the side that contacts the wearer's buttocks is called the "rear side".

[0041] The absorbent article 1 has a front region S1, a rear region S2, and a crotch region S3. The crotch region S3 is a region arranged opposite to the excretion opening of the wearer, such as the vaginal opening. It is a region arranged in the crotch of the wearing article and arranged between the legs of the wearer when the absorbent article 1 is worn on the wearing article. The front region S1 is located at a position closer to the front side than the crotch region S3. The front end edge of the front region S1 defines the front end edge of the absorbent article 1. The rear region S2 is located at a position closer to the rear than the crotch region S3. The rear end edge of the rear region S2 defines the rear end edge of the absorbent article 1. The crotch region S3 may be a region located in the center of the region obtained by dividing the absorbent article 1 into three equal parts in the front-to-back direction L. In addition, in the absorbent article 1 having wings, the crotch region S3 may be a region provided with wings 5.

[0042] like Figure 6 As shown, the absorbent article 1 has a crotch central region S33 located in the center of the region formed by dividing the crotch region S3 into three equal parts in the front-to-back direction L, a crotch front region S31 located on the front side of the region formed by dividing the crotch region into three equal parts, and a crotch rear region S32 located on the rear side of the region formed by dividing the crotch region into three equal parts. The absorbent article 1 has a front outer region S11 located on the front side of the region formed by dividing the front region S1 into two equal parts in the front-to-back direction L, and a front inner region S12 located on the rear side of the region formed by dividing the front region S1 into two equal parts in the front-to-back direction L. The absorbent article 1 has a rear outer region S21 located on the rear side of the region formed by dividing the rear region S2 into two equal parts in the front-to-back direction L, and a rear inner region S22 located on the front side of the region formed by dividing the rear region S2 into two equal parts.

[0043] In addition, the outer portion of the present invention is a portion that includes the outer edge in the width direction W and occupies a certain range in the width direction W. The outer edge is the outer edge in the width direction W. In addition, the outer edge of a constituent member that occupies a certain range in the front-rear direction L is an edge formed by connecting the points on the outer side in the width direction W in the entire constituent member. The inner portion of the present invention is a portion that includes the inner edge in the width direction W and occupies a certain range in the width direction W. The inner edge is the inner edge in the width direction W. In addition, the inner edge of a constituent member that occupies a certain range in the front-rear direction L is an edge formed by connecting the points on the inner side in the width direction W in the entire constituent member. Furthermore, the front end portion and the rear end portion of the present invention are portions that include the edges in the front-rear direction L and occupy a certain range in the front-rear direction L. The front edge and the rear edge are the edges in the front-rear direction L. The outer end portion includes the front end portion and the rear end portion, and the outer edge includes the front edge and the rear edge. In addition, the inner side edge is an edge that includes the inner edge and extends along the front-rear direction L. The outer side edge is an edge that includes the outer edge and extends along the front-rear direction L. In addition, in this specification, the term "along the front-rear direction L" means a direction having an angle of less than 45° with respect to the front-rear direction L, and the term "along the width direction W" means a direction having an angle of less than 45° with respect to the width direction W.

[0044] The absorbent article 1 may have at least one of a wing 5 disposed in the crotch region S3 and a hip flap (not shown) disposed in the rear side region S2. The absorbent article 1 of the present embodiment has a wing 5 and does not have a hip flap. The wing 5 protrudes outward in the width direction W in the crotch region S3 and folds back to the non-skin side T2 of the wearing article S (refer to Figure 8 ). A wing fixing portion 62 for fixing the wing 5 to the wearing article may be provided on the non-skin side T2 surface of the wing 5. The hip flap protrudes outward in the width direction W in the rear side region S2 and is disposed along the skin side surface of the wearing article when worn.

[0045] The absorbent article 1 may have at least an absorber 40, a skin side sheet 11, and a non-skin side sheet 20. The absorber 40 may be disposed at least in the crotch region S3, and may also be disposed in the front side region S1 and the rear side region S2. The absorber 40 of the present embodiment is disposed in the front side region S1, the rear side region S2, and the crotch region S3. The absorber 40 has an absorbent material for absorbing liquid. Examples of the absorbent material can include hydrophilic fibers, cellulose-based fibers (such as pulp), and superabsorbent polymer (SAP) 44.

[0046] Figure 6 is a top view of the absorber 40, Figure 7 is a top view of the absorbent sheet 45. Figure 9 isFigure 3 The enlarged view of part D shown is a schematic cross-sectional view of the absorbent sheet 45. The absorbent body 40 may include an absorbent sheet 45 formed by covering the skin side T1 and the non-skin side T2 of the superabsorbent polymer 44 with a sheet 48. The absorbent sheet 45 may be a so-called SAP sheet, which may be formed by sandwiching the superabsorbent polymer 44 with one folded sheet or multiple sheets. Cellulosic fibers may also be disposed between the sheets 48 of the absorbent sheet 45 together with the superabsorbent polymer 44.

[0047] The "absorbent sheet" of the present invention is a sheet formed by sandwiching only a superabsorbent polymer as an absorbent material with a sheet on the skin side and the non-skin side, or a sheet containing a superabsorbent polymer and cellulosic fibers as absorbent materials, and satisfying any one of (1) the weight ratio of the superabsorbent polymer in the absorbent material is 50% or more, preferably 70% or more, (2) the unit area weight of the cellulosic fibers is less than 100 g / m 2 , and (3) the thickness of the portion other than the sheet is less than 1 mm (including 0 mm).

[0048] The absorbent sheet 45 may be provided with only one layer or multiple layers. The absorbent sheet 45 of the present embodiment may have a first absorbent sheet 451 and a second absorbent sheet 452 disposed at a position closer to the skin side T1 than the first absorbent sheet 451. The first absorbent sheet 451 and the second absorbent sheet 452 each include a superabsorbent polymer 44 and a sheet 48 covering the skin side T1 and the non-skin side T2 of the superabsorbent polymer 44.

[0049] The sheet of the first absorbent sheet 451 and the sheet 48 of the second absorbent sheet 452 may be the same or different. Preferably, the sheet 48 of the first absorbent sheet 451 may be a spunbond nonwoven fabric or a hydroentangled nonwoven fabric, and the sheet 48 of the second absorbent sheet 452 may be a thermally bonded nonwoven fabric. In addition, the unit area weight of the superabsorbent polymer of the first absorbent sheet 451 and the unit area weight of the superabsorbent polymer of the second absorbent sheet 452 may be the same or different. Preferably, the unit area weight of the superabsorbent polymer of the first absorbent sheet 451 may be higher than the unit area weight of the superabsorbent polymer of the second absorbent sheet 452. Since the unit area weight of the superabsorbent polymer of the second absorbent sheet located on the skin side is lower, gel blocking caused by the superabsorbent polymer during repeated absorption of body fluids can be suppressed, and continuous absorption of body fluids can be achieved by the second absorbent sheet located on the non-skin side.

[0050] Either the outer edge 451E of the first absorbent sheet 451 may be located on the outer side in the width direction W with respect to the outer edge 452E of the second absorbent sheet 452, or the outer edge 451E of the first absorbent sheet 451 may be located on the inner side in the width direction W with respect to the outer edge 452E of the second absorbent sheet 452, and the length of the first absorbent sheet 451 in the width direction W and the length of the second absorbent sheet 452 in the width direction W may also be the same. In the present embodiment, the outer edge 451E of the first absorbent sheet 451 is located on the outer side in the width direction W with respect to the outer edge 452E of the second absorbent sheet 452. In addition, the absorbent body 40 may include other absorbent sheets in addition to the first absorbent sheet 451 and the second absorbent sheet 452.

[0051] The absorbent body 40 has a side region R45 extending from the outer edge in the width direction W of the non-skin side T2 surface of the absorbent sheet 45 toward the inner side in the width direction W. In the form having a plurality of absorbent sheets 45, the side region R45 is provided on the non-skin side T2 surface of the absorbent sheet 45 located at the position closest to the non-skin side T2. In the present embodiment, the side region R45 is provided on the non-skin side T2 surface of the first absorbent sheet 451. In the form in which the absorbent sheet 45 constitutes the non-skin side T2 surface of the absorbent body 40, the side region R45 is provided on the non-skin side T2 surface of the absorbent body 40. In addition, in the form in which the absorbent sheet 45 does not constitute the non-skin side T2 surface of the absorbent body 40 (for example, in the form in which an absorbent core is disposed on the non-skin side T2 of the absorbent sheet), the side region R45 is provided on a surface of the absorbent body 40 other than the non-skin side T2 surface. The outer edge of the side region R45 is the outer edge 45E of the absorbent sheet 45 (located at the position closest to the non-skin side T2), and the inner edge of the side region R45 may be the outer edge of the absorbent core 41 or the outer edge of the crotch joining portion 31.

[0052] The absorbent body 40 may also include an absorbent core 41. The absorbent core 41 may be a cellulose-based fiber laminate and is disposed across the center in the width direction W of the absorbent article 1. Examples of the cellulose-based fiber include pulp. In a plan view of the absorbent article 1, the area of the absorbent core 41 may be larger than the area of the absorbent sheet 45, and the absorbent sheet 45 may be disposed in the entire region where the absorbent core 41 is disposed. The absorbent core 41 may include cellulose-based fibers and a superabsorbent polymer 44 together. However, the weight ratio of the superabsorbent polymer 44 to the entire absorbent material of the absorbent core 41 is lower than the weight ratio of the superabsorbent polymer 44 to the entire absorbent material of the absorbent sheet 45.

[0053] The absorber 40 may have an auxiliary absorption layer having a nonwoven fabric disposed overlapping the absorbent core 41. The auxiliary absorption layer only needs to have a nonwoven fabric disposed overlapping the absorbent core 41, and may be composed only of the nonwoven fabric, or may be composed of the nonwoven fabric and other absorbent materials (such as superabsorbent polymers). The auxiliary absorption layer may be composed of the above-mentioned absorption sheet, or may be composed of a core wrapper, or may be composed of a nonwoven fabric other than the core wrapper and the absorption sheet. The auxiliary absorption layer only needs to have a portion overlapping the absorbent core 41, and may also have a portion not overlapping the absorbent core 41. The auxiliary absorption layer may be disposed only at a position closer to the skin side T1 than the absorbent core 41, or may be disposed only at a position closer to the non-skin side T2 than the absorbent core 41, or may be disposed on both the skin side T1 and the non-skin side T2 of the absorbent core 41. The auxiliary absorption layer of the present embodiment is composed of the sheet 48 of the first absorption sheet 451 and the sheet 48 of the second absorption sheet.

[0054] The shape of the absorbent article when viewed from above and the shape of the auxiliary absorption layer (the first absorption sheet 451 and the second absorption sheet 452 in the present embodiment) may be different. The absorbent article may have a laminated region where the absorption sheet and the auxiliary absorption layer are laminated and an auxiliary region where the absorbent core is not disposed but the auxiliary absorption layer is disposed. In the laminated region, the absorption sheet and the auxiliary absorption layer may overlap each other in contact or may overlap with other members interposed therebetween. In the present embodiment, the absorbent core is disposed in the region overlapping the auxiliary absorption layer and is not disposed in the region not overlapping the auxiliary absorption layer. Therefore, the laminated region R41 is the region where the absorbent core 41 is disposed in the top view of the absorber (refer to Figure 6 ). The absorbent core is separated in the front-rear direction, and the laminated region R41 is also separated in the front-rear direction L. The region sandwiched by the laminated regions separated in the front-rear direction constitutes the auxiliary region R42. The auxiliary region R42 is the region where the absorbent core 41 is not disposed in the top view of the absorber 40. The boundary between the laminated region R41 and the auxiliary region R42 is the outer edge of the absorbent core.

[0055] The absorber 40 has at least an absorbent sheet 45 and a superabsorbent polymer 44 having a relatively high absorption capacity. Thus, the absorber 40 is formed in a thin shape while ensuring the absorption capacity. Regarding the thickness of the absorber 40, the average thickness of the central region among the regions obtained by trisecting the absorber 40 in the width direction may be 0.4 mm or more and 3.0 mm or less, and the average thickness of the lateral regions among the regions obtained by trisecting the absorber 40 in the width direction may be 0.4 mm or more and 2.0 mm or less. Since the thickness of the absorber 40 in the present embodiment is thin, it is possible to suppress the discomfort during wearing caused by its stiffness and thickness while ensuring the absorption capacity. In addition, the average thickness of the lateral regions in the absorber may be thinner than the average thickness of the central region. Further, in a state where the absorbent article is frozen with liquid nitrogen so that the thickness of the absorbent article does not change, the absorbent article is cut along a cross-section in the width direction, and after air-drying for 24 hours, the thickness of the cut surface is measured at 5-mm intervals in the width direction, and the average thickness can be calculated using its average value.

[0056] The skin-side sheet 11 is a sheet disposed closer to the skin side T1 than the absorber 40 and in contact with the wearer. The skin-side sheet 11 can be made of any sheet-like material having a structure that allows liquid to pass through, such as non-woven fabric, spun fabric, perforated plastic sheet, and mesh sheet. The skin-side sheet 11 may have a central sheet covering the center of the width direction W of the absorbent core 41 and a hydrophobic side sheet disposed at a position outside the central sheet in the width direction W, or may be composed of only one sheet (for example, the central sheet). The skin-side sheet 11 in the present embodiment is composed of one sheet.

[0057] The absorbent article 1 may have an auxiliary sheet 25 disposed between the skin-side sheet 11 and the absorber 40. The auxiliary sheet 25 is a sheet that assists in sucking body fluid from the skin-side sheet 11 side to the absorber 40 side, and can be made of a liquid-permeable sheet.

[0058] The absorbent article 1 may have a main pressing portion 81 that presses at least the skin-side sheet 11 and the absorber 40 in the thickness direction. The main pressing portion 81 may press a part of the layers such as the absorbent sheet 45 constituting the absorber 40 and the skin-side sheet 11, or may press the entire region in the thickness direction T of the absorber 40 and the skin-side sheet 11. Alternatively, the main pressing portion 81 is formed by pressing the skin-side sheet 11, the absorbent core 41, and the absorbent sheet 45 (the first absorbent sheet 451 and the second absorbent sheet 452) in the region where the absorbent core 41 and the absorbent sheet 45 overlap, and is formed by pressing the skin-side sheet 11 and the absorbent sheet 45 (the first absorbent sheet 451 and the second absorbent sheet 452) in the region where only the absorbent sheet 45 is disposed without the absorbent core 41.

[0059] The main body pressing portion 81 can extend linearly (straight or curved) in a top view. The main body pressing portion is not only a continuous line, but can also be an aggregate of a plurality of pressing component portions 82 arranged linearly. The pressing component portions 82 only need to be arranged at intervals, and their shapes can be dot-shaped or other patterns (such as star patterns, heart patterns). The main body pressing portion 81 can have a region composed only of the pressing component portions 82 arranged at intervals (such as Figure 1 R85 of Figure 1 R86). In addition, the main body pressing portion 81 can have a region composed of the pressing component portions 82 arranged at intervals and a linear pressing portion 83 surrounding the pressing component portions 82 (such as

[0060] The non-skin side sheet 20 is a sheet arranged on the non-skin side T2 of the absorber 40. The non-skin side sheet 20 only needs to have at least a part of the region arranged on the non-skin side T2 of the absorber 40, and can also have a region not arranged on the non-skin side T2 of the absorber 40 (such as a region arranged on the skin side of the absorber 40). The non-skin side sheet 20 can have a first non-skin side sheet 21 that at least covers the side region R45 and a second non-skin side sheet 22 arranged on the non-skin side T2 of the first non-skin side sheet 21 and joined to the first non-skin side sheet 21 by a non-skin side joining portion 30. The non-skin side T2 surface of the absorber sheet 45 in the present embodiment is composed of a first absorber sheet 451. Therefore, the side region R45 extending from the outer edge 45E in the width direction W to the inner side in the width direction W of the non-skin side T2 surface of the absorber sheet 45 is the region of the non-skin side T2 surface of the first absorber sheet 451 extending from the outer edge 451E in the width direction W of the first absorber sheet 451 to the inner side in the width direction W. The first non-skin side sheet 21 covers the side region R45 of the non-skin side T2 surface of the first absorber sheet 451.

[0061] The first non-skin side sheet 21 can have a first region 211 covering the non-skin side T2 surface of the absorber sheet 45 and a second region 212 folded back toward the skin side from the outer edge in the width direction W of the first region 211. It can be that the first region 211 is joined to the second non-skin side sheet 22 by a non-skin side joining portion 30, and the second region 212 is joined to the skin side surface of the skin side sheet 11 by a skin side joining portion 35. The first region 211 of the first non-skin side sheet 21 can cover the side portion in the width direction W instead of covering the center in the width direction W of the non-skin side surface of the absorber 40. In addition, the second region 212 of the first non-skin side sheet 21 can cover the side portion in the width direction W instead of covering the center in the width direction W of the skin side T1 surface of the skin side sheet 11. A pair of the first non-skin side sheets 21 can be arranged at intervals in the width direction W. The first non-skin side sheet 21 can be composed of a hydrophobic sheet (such as a hydrophobic non-woven fabric).

[0062] The second non-skin side sheet 22 only needs to have a region covering the surface of the non-skin side T2 of the first non-skin side sheet 21, and may also extend to a position outside the outer edge of the first non-skin side sheet 21 in the width direction W. In the form with wing parts, the second non-skin side sheet 22 can be arranged on the skin side surface of the wing part 5. Preferably, it can cover the non-skin side surface of the absorber 40 and be arranged across the wing part. A pair of the second non-skin side sheets 22 can be arranged at intervals in the width direction W. The second non-skin side sheet 22 can be composed of a hydrophobic non-woven fabric or a film.

[0063] The non-skin side sheet 20 can have a third non-skin side sheet 23, and the third non-skin side sheet 23 is arranged on the non-skin side T2 surface of the absorbent article 1. The third non-skin side sheet 23 can be arranged across the center of the width direction W of the absorbent article 1 and be arranged on the non-skin side T2 surface of the absorbent article 1 within the entire region in the plan view of the absorbent article 1. The center of the width direction W of the non-skin side T2 surface of the absorber 40 can be covered by the third non-skin side sheet 23 without being covered by either the first non-skin side sheet 21 or the second non-skin side sheet 22. The third non-skin side sheet 23 can be a liquid-impermeable sheet. As the liquid-impermeable sheet, a sheet formed by bonding a breathable resin film to a non-woven fabric such as a laminated non-woven fabric, spunbond, or hydroentangled non-woven fabric can be used.

[0064] The non-skin side joint part 30 can have at least one of a crotch joint part 31 arranged in the crotch region S3 and a front-back joint part 32 arranged in at least one of the front side region S1 and the rear side region S2. The crotch joint part 31 is the joint part of the non-skin side joint part 30 arranged in the crotch region S3. The front-back joint part 32 is the joint part of the non-skin side joint part 30 arranged in at least one of the front side region S1 and the rear side region S2. The crotch joint part 31 may not reach the outer edge of the crotch region S3 or may reach the outer edge of the crotch region S3. In addition, in the form where the crotch joint part 31 reaches the outer edge of the crotch region S3, the crotch joint part 31 may also be connected to the front-back joint part 32.

[0065] The front-back joint portion 32 can be disposed only in the front region S1, only in the rear region S2, or in both the front region S1 and the rear region S2. In the present embodiment, the front-back joint portion 32 is disposed such that the front-back joint portion 32 disposed in the front region S1 and the front-back joint portion 32 disposed in the rear region S2 are separated in the front-back direction L. The front-back joint portion 32 can have a first front-back joint portion 321 and a second front-back joint portion 322 that are separated from the first front-back joint portion 321 in the width direction W and are located outside the first front-back joint portion 321 in the width direction W. Since the first front-back joint portion 321 and the second front-back joint portion 322 are separated in the width direction W, each joint portion can easily function independently. The first front-back joint portion 321 of the present embodiment is connected to the crotch joint portion 31.

[0066] A fixing portion 60 for fixing the absorbent article 1 to the wearing article can be provided on the non-skin side T2 surface of the absorbent article 1. The fixing portion 60 is provided on the non-skin side T2 surface of the absorbent article 1, and in the present embodiment, it is provided on the non-skin side T2 surface of the third non-skin side sheet 23. The fixing portion 60 can have a main body fixing portion 61 that fixes the absorbent article 1 to the skin side T1 surface of the wearing article S and a wing fixing portion 62 that is disposed on the wing 5 and fixes the absorbent article 1 to the non-skin side T2 surface of the wearing article S. The fixing portion 60 is a region where a fixing member (such as an adhesive) for fixing the absorbent article 1 to the wearing article is provided. The main body fixing portion 61 can be provided at least in a region overlapping with the absorbent body 40. The fixing portion 60 extends in the front-back direction L and is provided in a plurality of spaced intervals in the width direction W. Additionally, in a modified example, the fixing portion 60 can extend in the width direction W and be provided in a plurality of spaced intervals in the front-back direction L. The fixing portion 60 can be covered by a packaging sheet (not shown) or a release sheet 65 that independently packages the absorbent article 1 before use.

[0067] In this embodiment, four main body fixing parts 61 are arranged on each of the two sides of the post-treatment member 68 with a space therebetween. The main body fixing part 61 has a first main body fixing part 611 arranged at the outermost position in the width direction of the main body fixing part 61, a second main body fixing part 612 adjacent to the first main body fixing part 611, a third main body fixing part 613 adjacent to the second main body fixing part 612, and a fourth main body fixing part 614 adjacent to the third main body fixing part 613. They are arranged in the order of the first main body fixing part 611, the second main body fixing part 612, the third main body fixing part 613, and the fourth main body fixing part 614 from the outside to the inside in the width direction. There is a space between each main body fixing part. More specifically, a first gap G611 is provided as the gap between the first main body fixing part 611 and the second main body fixing part 612, a second gap G612 is provided as the gap between the second main body fixing part 612 and the third main body fixing part 613, and a third gap G613 is provided as the gap between the third main body fixing part 613 and the fourth main body fixing part 614.

[0068] The post-treatment member 68 may be provided on the non-skin side T2 surface of the absorbent article 1. The post-treatment member 68 may have a hook member that can engage with the skin-side sheet 11 when the absorbent article 1 is folded or rolled up with the skin side T1 of the absorbent article 1 as the inside when the absorbent article 1 is discarded or the like. The post-treatment member 68 may be arranged across the center in the width direction W and the center in the front-rear direction L of the absorbent article 1. The main body fixing part 61 may be arranged on both sides of the post-treatment member 68 in the width direction W. The post-treatment member 68 may be covered by a release sheet 65 before use.

[0069] (3) The first feature of the absorbent article

[0070] Next, the first feature of the absorbent article will be described in detail. The absorbent article with the first feature is configured such that the outer part of the absorber 40 expands more easily when absorbing body fluid and the information that the absorber 40 has absorbed body fluid is more easily transmitted to the wearer. The absorbent article with the first feature can be roughly divided into a first form to a fourth form. As a common structure of the first form to the fourth form, the absorbent article 1 includes a front-rear direction L, a width direction W, and a thickness direction T, a crotch region S3, a front region S1, and a rear region S2, an absorber 40, a skin-side sheet 11, and a non-skin-side sheet 20. As a common structure, the absorber 40 has an absorbent sheet 45. As a common structure, the non-skin-side sheet 20 has a first non-skin-side sheet 21 and a second non-skin-side sheet 22 that cover the side region R45. The non-skin-side joint 30 that joins the first non-skin-side sheet 21 and the second non-skin-side sheet 22 has a crotch joint 31.

[0071] Next, each form is described. In the absorbent article 1 of the first form, the side region R45 is provided on the surface of the non-skin side T2 of the absorbent body 40. That is, the absorbent sheet 45 is arranged on the surface of the non-skin side T2 of the absorbent body 40. Since the side region R45 is provided on the surface of the non-skin side T2 of the absorbent body 40, the absorbent sheet 45 is arranged in the area extending from the outer edge in the width direction W of the surface of the non-skin side T2 of the absorbent body 40. Therefore, in the area extending from the outer edge 40E in the width direction W of the surface of the non-skin side T2 of the absorbent body 40, the absorbent sheet 45 is easy to expand toward the non-skin side T2 when absorbing body fluids, and the absorption capacity of the absorbent sheet 45 can be effectively utilized. The area of ​​the surface of the non-skin side T2 of the absorbent body 40 extending from the outer edge in the width direction W to the inner side in the width direction W is located on the outer side of the absorbent body 40, and is easy to be close to the wearer's legs when worn.

[0072] In the absorbent article 1 of the first form, the outer edge 45E of the absorbent sheet 45 disposed in the side region R45 is located at a position that is outside the outer edge 31E of the crotch joint 31 in the width direction W. In the crotch region S3, the outer edge 45E of the absorbent sheet 45 constituting the non-skin side surface of the absorber 40 is located at a position that is outside the outer edge 31E of the crotch joint 31 in the width direction W. In the region that is outside the outer edge 31E of the crotch joint 31 in the width direction W, the first non-skin side sheet 21 and the absorbent sheet 45 are easy to stand up toward the skin side T1 with the crotch joint 31 as the base point, and the absorbent sheet 45 is more likely to expand toward the non-skin side T2 when absorbing body fluids. In addition, by the first non-skin side sheet 21 and the absorbent sheet 45 standing up toward the skin side with the crotch joint 31 as the base point, the expanded absorbent sheet 45 is easy to be attached to the wearer's legs.

[0073] Figure 8 So Figure 5 The enlarged view shown is a reference cross section. Figure 8 (a) is a diagram showing a state in which the absorbent sheet 45 of the absorbent article 1 worn on the wearing article S has not absorbed body fluid. Figure 8 (b) is a diagram showing a state in which the absorbent sheet 45 of the absorbent article 1 worn as a garment absorbs body fluid. Figure 8 (c) is a diagram showing a state in which the absorbent article 1, in which the absorbent sheet 45 has absorbed body fluid, is pressed inward in the width direction W. Figure 8 As shown, when pressed by the legs, the first area 211 of the first non-skin side sheet 21 and the first absorbent sheet 451 are deformed starting from the crotch joint 31, and the legs are easily attached between the first non-skin side sheet 21 and the second non-skin side sheet 22. At this time, the surface of the non-skin side T2 of the first absorbent sheet 451 is attached to the legs through the first non-skin side sheet 21, and the touch of the swollen absorbent sheet 45 is easily transmitted to the legs. Therefore, it is easier to transmit to the wearer the information that the absorbent body 40 has absorbed body fluids.

[0074] In addition, the absorbent sheet 45 that constitutes the side region R45 may be this absorbent sheet in the form where the absorbent sheet is a single layer, or may be the absorbent sheet located on the non-skin side T2 (the first absorbent sheet 451 in the present embodiment) in the form having a plurality of absorbent sheets. In the form where the outer edge of the absorbent sheet located on the skin side (the second absorbent sheet 452 in the present embodiment) is located outside the outer edge of the absorbent sheet located on the non-skin side T2 (the first absorbent sheet 451), the absorbent sheet located on the skin side may also constitute the absorbent sheet 45 disposed in the side region R45.

[0075] The absorbent article 1 of the second form includes a main body pressing portion 81 and an absorbent core 41. In the absorbent article 1 of the second form, the outer edge 81E of the main body pressing portion 81 is located outside the outer edge 41E of the absorbent core 41 in the width direction W and is located inside the outer edge 45E of the absorbent sheet 45 in the width direction W. In the absorbent article 1 of the second form, in the width direction W, the outer edge of the absorbent sheet is located outside the outer edge of the crotch joining portion 31. In addition, in the second to fourth forms, the absorbent sheet located outside the outer edge 31E of the crotch joining portion 31 in the width direction W is not limited to the absorbent sheet (the first absorbent sheet 451) that constitutes the side region R45, and may also be an absorbent sheet (the second absorbent sheet 452) that does not constitute the side region R45. That is, other layers constituting the absorbent body 40 such as an absorbent sheet may be disposed in the region on the non-skin side T2 beyond the second non-skin side sheet 22.

[0076] In addition, the relationship between the outer edge 81E of the main body pressing portion 81 and the outer edge 41E of the absorbent core 41 only needs to be such that the outer edge 81E of the main body pressing portion 81 is located outside the outer edge 41E of the absorbent core 41 in at least a part of the region in the width direction W. However, preferably, there is a part in the region extending in the width direction W from the crotch joining portion 31 where the outer edge 81E of the main body pressing portion 81 is located outside the outer edge 41E of the absorbent core 41 in the width direction W. As long as there is a part in the region extending in the width direction W from the crotch joining portion 31 where the outer edge 81E of the main body pressing portion 81 is located outside the outer edge 41E of the absorbent core 41 in the width direction W, there may also be a part where the outer edge 81E of the main body pressing portion 81 is located inside the outer edge 41E of the absorbent core 41 in the width direction W.

[0077] The outer edge 45E of the absorbent sheet 45 is located on the outer side in the width direction W with respect to the outer edge 31E of the crotch joining portion 31, and is also located on the outer side in the width direction W with respect to the main body pressing portion 81. The outer edge 45E of the absorbent sheet 45 is prone to standing up toward the skin side starting from the main body pressing portion 81, and is also prone to standing up toward the skin side starting from the crotch joining portion 31. Therefore, when absorbing body fluids, the absorbent sheet 45 is more prone to expanding toward the non-skin side T2, and the expanded absorbent sheet 45 is prone to adhering to the wearer's leg. The wearer can truly feel the body fluid absorption performance at the central portion in the width direction of the absorbent body, while the risk of body fluid leakage is easily transmitted to the wearer at the side portion of the absorbent body. By the expanded absorbent sheet 45 adhering to the leg, the wearer can easily determine the replacement time of the absorbent article 1. In addition, the outer edge 45E of the absorbent sheet 45 is located on the outer side in the width direction W with respect to the outer edge 41E of the absorbent core 41. The absorbent sheet 45 is disposed at the outer portion of the absorbent body 40, while the absorbent core 41 is not disposed there. Therefore, the outer portion of the absorbent body 40 is more prone to expanding due to the swelling of the superabsorbent polymer 44. By the expanded absorbent sheet 45 adhering to the leg, the information that the absorbent body 40 has absorbed body fluids is more easily transmitted to the wearer.

[0078] The absorbent article 1 of the third form further has wing portions 5, and the second non-skin side sheet 22 is disposed to cover the side portion region R45 in the region on the non-skin side T2 with respect to the first non-skin side sheet 21 and straddle the wing portions 5. In addition, similar to the absorbent article 1 of the second form, the outer edge 45E of the absorbent sheet 45 is located on the outer side in the width direction W with respect to the outer edge 31E of the crotch joining portion 31. The outer edge 45E of the absorbent sheet 45 is prone to standing up toward the skin side T1 starting from the crotch joining portion 31. As Figure 8 shown, in the state where the wing portions 5 are folded back toward the non-skin side T2 of the wearing article S during wearing, the second non-skin side sheet 22 is disposed to straddle the region covering the non-skin side surface of the absorbent body 40 from the region folded back toward the non-skin side T2 of the wearing article S. When the first non-skin side sheet 21 stands up with respect to the second non-skin side sheet 22 with the crotch joining portion 31 as a base point, the outer portion of the absorbent body 40 also stands up. In the region extending in the width direction W from the crotch joining portion 31, the absorbent sheet 45 is more prone to expanding when absorbing body fluids, and the absorption capacity of the absorbent sheet 45 can be effectively utilized. In addition, when the absorbent sheet 45 stands up toward the skin side with the crotch joining portion 31 as a base point, the expanded absorbent sheet 45 is more prone to adhering when it adheres to the wearer's leg at the side portion in the width direction W of the absorbent body 40, and the wearer can easily determine the replacement time of the absorbent article 1.

[0079] The absorbent article 1 in the fourth form has a main body fixing portion 61 and an absorbent core 41. In the absorbent article 1 in the fourth form, the outer edge 61E of the main body fixing portion 61 is located outside the outer edge 41E of the absorbent core 41 and inside the outer edge 45E of the absorbent sheet 45. Similar to the absorbent articles 1 in the second and third forms, in the width direction W of the absorbent article 1 in the fourth form, the outer edge 45E of the absorbent sheet is located outside the outer edge 31E of the crotch joint portion 31 in the width direction W. In addition, in the form where a plurality of main body fixing portions 61 are arranged at intervals in the width direction W, the outer edge of the main body fixing portion 61 is the outer edge of the main body fixing portion 61 located at the outermost position in the width direction W. In addition, since the wing fixing portion 62 is not a fixing portion for fixing the absorbent article 1 to the skin side T1 of the wearing article S, it does not constitute the main body fixing portion 61.

[0080] The outer edge 45E of the absorbent sheet 45 is located outside the outer edge 31E of the crotch joint portion 31 in the width direction W, and is located outside the outer edge 61E of the main body fixing portion 61 and outside the outer edge 41E of the absorbent core 41 in the width direction W. The outer edge of the absorbent sheet is likely to stand up toward the skin side starting from the crotch joint portion 31. In addition, the outer edge of the absorbent sheet is located outside the outer edge of the absorbent core 41 in the width direction W. The absorbent sheet 45 is arranged in the outer portion of the absorbent body 40, and the absorbent core 41 is not arranged. Therefore, the outer portion of the absorbent body 40 is more likely to expand due to the swelling of the superabsorbent polymer 44. And since the outer edge 45E of the absorbent sheet 45 is located outside the outer edge 61E of the main body fixing portion 61 in the width direction W, the outer edge 45E of the absorbent sheet 45 is not fixed to the wearing article S and is likely to expand toward the wearing article S side (non-skin side T2) due to the swelling of the superabsorbent polymer 44. Therefore, when absorbing body fluid, the absorbent sheet 45 is more likely to expand toward the non-skin side T2, and the expanded absorbent sheet 45 is likely to adhere to the wearer's leg, and the wearer can easily grasp the replacement timing of the absorbent article 1. In addition, by the expanded absorbent sheet 45 adhering to the leg, it is easier to transmit the information that the absorbent body 40 has absorbed body fluid to the wearer. In addition, since the outer edge 61E of the main body fixing portion is located outside the outer edge 41E of the absorbent core 41, it can be fixed to the wearing article until the region where the absorbent sheet with relatively low stiffness is arranged (the region outside the absorbent core in the width direction). Therefore, it is possible to suppress the distortion of the absorbent body caused by the absorbent sheet moving and adhering to the absorbent core.

[0081] The structures of the features of the first to fourth forms described above have been explained, but other structures may also be provided in each form. For example, the absorbent article 1 of the first form may also have the structure of the second form, and the structures of other forms may be appropriately adopted. Next, the preferred structures that can be adopted in the first to fourth forms will be explained. The following preferred structures can be adopted in any of the forms.

[0082] The first non-skin side sheet 21 may include a first region 211 and a second region 212. The second region 212 of the first non-skin side sheet 21 may be joined to the surface of the skin side T1 of the skin side sheet 11 by the skin side joining portion 35. Since the outer portion of the absorbent body 40 can be covered by the first non-skin side sheet 21, when standing up toward the skin side with the following crotch joining portion 31 as a base point, the entire thickness direction T of the absorbent body 40 is likely to stand up. Therefore, the absorbent body 40 that has absorbed body fluid is more likely to adhere to the legs, and the wearer can better grasp the replacement timing of the absorbent article 1. In addition, since the outer portion of the absorbent body 40 can be covered by the first non-skin side sheet 21, the shape of the absorbent body 40 is easily maintained even when the absorbent sheet 45 swells. Therefore, body fluid can be continuously absorbed, and in addition, the absorbent body 40 is easily kept in contact with the body even when pressed by the body.

[0083] The skin side joining portion 35 may join only the skin side sheet 11 and the second region 212 among the skin side sheet 11, the second region 212, and the absorbent sheet 45. That is, the skin side joining portion 35 may not join the absorbent sheet together with the skin side sheet 11 and the second region 212. Since the skin side joining portion 35 does not join the absorbent sheet 45, it is possible to suppress a situation where the presence of the skin side joining portion hinders the expansion in the thickness direction of the absorbent sheet.

[0084] In the width direction W, the outer edge 32E of the front and rear joining portion 32 may be located outside the outer edge 31E of the lower crotch joining portion 31. In other words, the outer edge of the non-skin side joining portion 30 in the front side region S1 may be located outside the outer edge of the non-skin side joining portion 30 in the lower crotch region S3 in the width direction W. Alternatively, the outer edge of the non-skin side joining portion 30 in the rear side region S2 may be located outside the outer edge of the non-skin side joining portion 30 in the lower crotch region S3 in the width direction W. According to this structure, since the outer edge of the lower crotch joining portion 31 is located relatively inward, a region where the absorbent sheet in the lower crotch region S3 expands is ensured, and since the outer edge of the front and rear joining portion 32 is located relatively outward, the planar area of the absorbent body 40 is ensured in the front side region S1 or the rear side region S2, and body fluid is absorbed in a wide range in the width direction W, and side leakage can be suppressed.

[0085] In the width direction W, the outer edge 32E of the front and rear joining portion 32 may be located outside the outer edge 45E of the absorbent sheet 45. According to this structure, in at least one of the front region S1 and the rear region S2, it is possible to suppress the situation where the region outside the absorbent sheet 45 in the width direction W stands up excessively by using the front and rear joining portion 32 located outside the absorbent sheet 45 in the width direction W. Therefore, even when the front region S1 and the rear region S2 are deformed due to leg movement or the like, it is possible to ensure the length of the absorbent sheet 45 in the width direction W at the outer end portions of the absorbent sheet 45 in the front-rear direction L. Therefore, in the crotch region S3, the outer portion of the absorbent sheet 45 is made to stand up toward the skin side T1, and in the front region S1 and the rear region S2, the length of the absorbent sheet 45 in the width direction W is ensured, so that both the followability to the body and the effect of covering the body can be achieved. In addition, the outer edge 32E of the front and rear joining portion 32 of the present embodiment is constituted by the outer edge of the second front and rear joining portion 322.

[0086] It may be that in the width direction W, the outer edge 32E of the front and rear joining portion 32 is located outside the outer edge 45E of the absorbent sheet 45, and the inner edge 32I of the front and rear joining portion 32 is located inside the outer edge 45E of the absorbent sheet 45. According to this structure, since the outer edge 32E and the inner edge 32I of the front and rear joining portion 32 straddle the outer edge 45E of the absorbent sheet 45, the situation where the outer edge 45E of the absorbent sheet 45 stands up is suppressed by using the front and rear joining portion 32, and the length of the absorbent sheet 45 in the width direction W can be ensured in at least one of the front region S1 and the rear region S2. For the front region S1 disposed near the leg circumference, it is easy to open a gap between the body and the absorbent article 1, and leakage is likely to occur. In addition, for the rear region S2 disposed on the buttocks, sometimes the buttocks move significantly due to leg movement, and sometimes a gap between the body and the absorbent article 1 is opened and leakage occurs. However, ensuring the length of the absorbent sheet in the width direction W in at least one of the front region and the rear region can suppress leakage. The inner edge 32I of the front and rear joining portion 32 of the present embodiment is constituted by the inner edge of the first front and rear joining portion 321.

[0087] The outer edge 45E of the absorbent sheet 45 may overlap with the front and rear joining portion 32. The outer edge 45E of the absorbent sheet 45 of the present embodiment overlaps with the second front and rear joining portion 322. That is, the outer edge of the second front and rear joining portion 322 is located outside the outer edge 45E of the absorbent sheet 45 in the width direction W, and the inner edge of the second front and rear joining portion 322 is located inside the outer edge 45E of the absorbent sheet 45 in the width direction W. According to this structure, in the front region or the rear region, it is possible to further suppress the situation where the outer edge 45E of the absorbent sheet 45 stands up excessively.

[0088] In a modified example, in the width direction W, the outer edge 45E of the absorbent sheet 45 may be disposed at a position outside the outer edge of the first front-back joint portion 321 and inside the outer edge of the second front-back joint portion 322. Since the second front-back joint portion 322 and the first front-back joint portion 321, which are located inside the outer edge of the absorbent sheet, are separated in the width direction, the swelling of the superabsorbent polymer 44 is not hindered in the separated portion, and the swollen absorbent sheet easily adheres to the wearer's leg.

[0089] In the width direction W, the outer edge 41E of the absorbent core 41 is located inside the outer edge 45E of the absorbent sheet 45. According to this structure, the outer edge 45E of the absorbent sheet 45 is located outside the outer edge 41E of the absorbent core 41 in the width direction W. The absorbent sheet 45 is disposed at the outer portion of the absorbent body 40, and the absorbent core 41 is not disposed. Therefore, the outer portion of the absorbent body 40 is more easily swollen due to the swelling of the superabsorbent polymer 44. By the swollen absorbent sheet adhering to the leg, it is easier to convey to the wearer the information that the absorbent body 40 has absorbed body fluid.

[0090] Preferably, the outer edge of the absorbent core 41 may be inside the outer edge of the first absorbent sheet 451 in the width direction W and inside the outer edge of the second absorbent sheet 452 in the width direction W. According to this structure, the outer portions of the first absorbent sheet 451 and the second absorbent sheet 452 are more easily swollen due to the swelling of the superabsorbent polymer 44. It is also preferable that, at the position of the maximum width of the absorbent core 41, the outer edge 41E of the absorbent core 41 may be located inside the outer edge 45E of the absorbent sheet 45. In the entire region of the absorbent core 41 in the front-back direction L, a region where the absorbent sheet 45 is disposed and the absorbent core 41 is not disposed is provided outside the absorbent core 41 in the width direction W. Therefore, the outer portion of the absorbent sheet 45 is more easily swollen.

[0091] In the width direction W, the outer edge 41E of the absorbent core 41 may be located closer to the inside than the outer edge 31E of the crotch joint portion 31. The region on the outer side in the width direction W of the outer edge 31E of the crotch joint portion 31 is a region that swells due to the absorbent sheet 45 and is likely to stand up toward the skin side T1. The absorbent core 41 is located closer to the inside than the outer edge 31E of the crotch joint portion 31. The region that swells due to the absorbent sheet 45 and is likely to stand up toward the skin side T1 is separated from the absorbent core 41. Therefore, a deformation that bulges toward the skin side T1 is achieved in the outer portion of the absorbent body 40, and the region where the absorbent core 41 is disposed is not easily affected by this standing-up deformation and can maintain a flat shape along the body. Preferably, the outer edge 41E of the absorbent core 41 may be located closer to the inside than the inner edge of the crotch joint portion 31. More preferably, at the position of the maximum width of the absorbent core 41, the outer edge of the absorbent core 41 may be located closer to the inside than the inner edge of the crotch joint portion 31. In addition, the outer edge 41E of the absorbent core 41 may be located closer to the inside in the width direction than the outer edge of the front and rear joint portion 32 (the outer edge of the second front and rear joint portion in this embodiment). And, at the position of the maximum width of the absorbent core 41, the outer edge 41E of the absorbent core 41 may be closer to the inside in the width direction than the outer edge of the second front and rear joint portion 322. Preferably, it is disposed at a position closer to the inside than the inner edge of the second front and rear joint portion 322 and closer to the outside in the width direction than the outer edge of the first front and rear joint portion 321.

[0092] In the width direction W, the inner edge 5I of the wing 5 may be located closer to the outside than the outer edge 31E of the crotch joint portion 31. The inner edge 5I of the wing 5 is the root portion of the wing 5 and is the portion that narrows the most toward the inside in the width direction W. The second non-skin side sheet 22 constituting the wing 5 is folded back toward the non-skin side T2 of the wearing article S with the inner edge 5I of the wing 5 as a base point. The second non-skin side sheet 22 is pulled toward the non-skin side T2 and the outside in the width direction W with the inner edge 5I of the wing 5 located closer to the outside in the width direction W of the outer edge 31E of the crotch joint portion 31 as a base point. As a result, the outer portions of the first non-skin side sheet 21 and the absorbent sheet 45 are more likely to stand up toward the skin side T1 with the outer edge 31E of the crotch joint portion 31 as a base point.

[0093] The inner edge 5I of the wing 5 may be positioned on the outer side in the width direction W relative to the outer edge 45E of the absorbent sheet 45. When the second non-skin side sheet 22 is pulled toward the non-skin side T2 and to the outer side in the width direction W with the inner edge 5I of the wing 5 as a reference point, the outer edge 45E of the absorbent sheet 45 is more likely to stand up toward the skin side T1. Further, the inner edge 5I of the wing 5 may be positioned on the outer side in the width direction W relative to the outer edge of the first non-skin side sheet 21 (the crease that forms the boundary between the second region 212 and the first region 211 in the present embodiment). When the second non-skin side sheet 22 is pulled toward the non-skin side T2 and to the outer side in the width direction W with the inner edge 5I of the wing 5 as a reference point, the absorbent sheet and the first non-skin side sheet 21 are more likely to stand up toward the skin side T1.

[0094] In the width direction W, the outer edge 61E of the main body fixing portion 61 may be positioned on the outer side relative to the outer edge 45E of the absorbent sheet 45. Since the outer edge 61E of the main body fixing portion 61 is positioned on the outer side in the width direction W relative to the outer edge 45E of the absorbent sheet 45, the region overlapping with the outer edge 45E of the absorbent sheet 45 is fixed to the wearing article S by the main body fixing portion 61. Since the region fixed to the wearing article S is stabilized by the main body fixing portion 61, the outer edge 45E of the absorbent sheet 45 is more likely to stand up toward the skin side T1.

[0095] The outer edge 61E of the main body fixing portion 61 may be positioned on the outer side in the width direction W relative to the outer edge 31E of the crotch joining portion 31. The region on the outer side in the width direction W relative to the outer edge 31E of the crotch joining portion 31 is fixed to the wearing article S by the main body fixing portion 61. Accordingly, the outer portion of the absorbent sheet 45 is more likely to stand up with the outer edge 31E of the crotch joining portion 31 as a reference point. Further, the outer edge 61E of the main body fixing portion 61 may be positioned on the outer side in the width direction W relative to the outer edge of the first non-skin side sheet 21. The outer edge of the first non-skin side sheet 21 is more likely to stand up toward the skin side. The outer edge 61E of the main body fixing portion 61 may be positioned on the inner side in the width direction relative to the outer edge 32E of the front-back joining portion 32.

[0096] In the width direction W, the outer edge 451E of the first absorbent sheet 451 and the outer edge 452E of the second absorbent sheet 452 may be offset. Since the outer edge 451E of the first absorbent sheet 451 and the outer edge 452E of the second absorbent sheet 452 are offset, only one absorbent sheet is disposed at the outer portion of the absorbent sheet 45 instead of two absorbent sheets. By disposing one absorbent sheet at the outer portion of the absorbent sheet, the thickness is suppressed, and the stiffness can be reduced. The outer portion of the absorbent sheet is easily bent, which helps to reduce discomfort, and this portion is easily expanded when absorbing body fluid, and the absorption capacity can be effectively utilized. Preferably, the outer edge 451E of the first absorbent sheet 451 may be located at a position outside the outer edge 452E of the second absorbent sheet 452 in the width direction W. The outer portion of the first absorbent sheet 451 located on the non-skin side T2 is more easily expanded. By the first absorbent sheet 451 being in contact with the first non-skin side sheet 21, the user can more easily recognize the state of absorbing body fluid. In addition, in the form in which the outer edge 451E of the first absorbent sheet 451 and the outer edge 452E of the second absorbent sheet 452 are offset, preferably, the unit area weight of the superabsorbent polymer of the absorbent sheet (the first absorbent sheet 451 in the present embodiment) extending to the outside in the width direction W may be higher than the unit area weight of the superabsorbent polymer of the absorbent sheet (the second absorbent sheet 452 in the present embodiment) not extending to the outside in the width direction W. The absorbent sheet extending to the outside in the width direction W at the outer portion of the absorber is more easily expanded.

[0097] In the width direction W, the outer edge 45E of the absorbent sheet 45 may be located outside the outer edge of the auxiliary sheet 25. Since the auxiliary sheet 25 does not cover the skin side of the outer portion of the absorbent sheet 45, the outer portion of the absorbent sheet 45 is easily expanded not only toward the non-skin side T2 but also toward the skin side T1. The outer edge of the auxiliary sheet 25 may be disposed at a position outside the outer edge of the maximum width position of the absorbent core 41 in the width direction W. By using the auxiliary sheet to inhale body fluid in the entire region of the width direction W of the absorbent core 41, the absorbent core 41 can hold the body fluid inhaled by the auxiliary sheet.

[0098] As Figure 4As shown, the absorbent article 1 may have a region obtained by trisecting in the width direction W a sheet arrangement region in which the absorbent sheet 45 is disposed. The sheet arrangement region includes not only the region where the first absorbent sheet 451 and the second absorbent sheet 452 overlap, but also the region where only the first absorbent sheet 451 is disposed and the region where only the second absorbent sheet 452 is disposed. The trisected regions have a central region RC located at the center in the width direction W and outer regions RS located at positions on both outer sides in the width direction W relative to the central region RC. The weight ratio of the superabsorbent polymer 44 in the absorbent material in the central region RC may be lower than the weight ratio of the superabsorbent polymer 44 in the absorbent material in the outer region RS. The weight ratio of the superabsorbent polymer 44 in the absorbent material can be calculated based on the weight of the superabsorbent polymer 44 / the weight of the absorbent material in the state where body fluid is not absorbed. Body fluid is first easily guided to the central region RC disposed opposite to the excretory opening. Since the weight ratio of the superabsorbent polymer 44 in this central region RC is low, the blockage caused by the superabsorbent polymer 44 absorbing body fluid is suppressed, and the body fluid guided to the central region RC can be absorbed in the central region RC and guided to the surrounding outer regions RS. Since the weight ratio of the superabsorbent polymer 44 in the outer region RS is high, the body fluid guided to the outer region RS can be absorbed. By guiding and absorbing the body fluid laterally in the width direction W within the absorber 40, it is possible to balance ensuring the absorption capacity of the body fluid and increasing the absorption speed.

[0099] The first absorbent sheet 451 and the second absorbent sheet 452 each include a superabsorbent polymer 44 and a sheet 48 that covers the skin side T1 and the non-skin side T2 of the superabsorbent polymer 44. The sheet 48 covering the skin side of the superabsorbent polymer and the sheet 48 covering the non-skin side of the superabsorbent polymer can be joined without using an adhesive but by a sheet pressing portion 46 formed by pressing the sheet 48 in the thickness direction. By joining the sheets of the absorbent sheet using the sheet pressing portion 46, the sheets 48 are more easily separated from each other compared to the form joined by an adhesive, and the situation where the swelling of the superabsorbent polymer 44 is hindered due to the joining of the sheets 48 can be suppressed. The sheet pressing portion 46 may have a first sheet pressing portion 461 that joins the sheets of the first absorbent sheet 451 and a second sheet pressing portion 462 that joins the sheets of the second absorbent sheet 452.

[0100] As Figure 7As shown, a plurality of sheet pressing portions 46 are arranged at intervals in the front-rear direction L and the width direction W in the plan view of the absorbent sheet 45. According to this embodiment, since the sheet pressing portions 46 are arranged at intervals in the front-rear direction L and the width direction W, the joint portions where the sheets are joined by the sheet pressing portions 46 are not locally formed, so that the superabsorbent polymer 44 is likely to expand within the entire range in the plan view of the absorbent sheet 45. The sheet pressing portions 46 may be arranged in a staggered pattern as in this embodiment, may be arranged at intervals along the front-rear direction L, or may be arranged at intervals along the width direction W.

[0101] It can be as Figure 9 As shown, a non-overlapping region NR is provided in which the first sheet pressing portion 461 and the second sheet pressing portion 462 do not overlap in the thickness direction T. The non-overlapping region NR includes a region where the first sheet pressing portion 461 and the second absorbent sheet 452 partially overlap except for the second sheet pressing portion, a region where the second sheet pressing portion 462 and the first absorbent sheet 451 partially overlap except for the first sheet pressing portion, and a region where the portion of the first absorbent sheet 451 except for the first sheet pressing portion and the portion of the second absorbent sheet 452 except for the second sheet pressing portion overlap. That is, the non-overlapping region NR is a region other than the portion where the first sheet pressing portion 461 and the second sheet pressing portion 462 overlap. In the region where the sheet pressing portions 46 overlap each other, the stiffness locally increases, and there is a possibility of unintentional deformation or discomfort based on this portion. However, by providing the non-overlapping region, it is possible to suppress the situation where the stiffness locally increases, suppress unintentional deformation based on the portion with higher stiffness, and suppress discomfort caused by the portion with higher stiffness.

[0102] The area ratio of the non-overlapping region NR in the plan view of the absorbent article 1 to the sheet arrangement region may be 10% or more and less than 50%. Since the area ratio of the non-overlapping region NR to the sheet arrangement region is 10% or more, the region where the sheet pressing portions do not overlap each other occupies more than 10% of the entire sheet arrangement region, which can improve the softness of the absorbent sheet and the followability to the body. In addition, since the area ratio of the non-overlapping region to the sheet arrangement region is less than 50%, the region where any sheet pressing portion is formed is more than 50% of the entire sheet arrangement region, which can maintain the joint state between the sheets. In addition, the area ratio of the region where the first sheet pressing portion and the second sheet pressing portion overlap each other to the sheet arrangement region may be less than 20%, preferably less than 10%. It is possible to reduce the ratio of the region where the sheet pressing portions overlap each other and the stiffness locally increases, improve the softness of the absorbent sheet, and improve the followability to the body.

[0103] (4) The second feature of the absorbent article

[0104] Next, the second feature of the absorbent article will be described in detail. The absorbent article 1 of the second feature is configured to enable the entire absorbent body 40 to follow the body and to allow body fluids to spread over the entire absorbent body 40 to effectively utilize the absorption capacity. The absorbent article 1 of the second feature is roughly classified into a fifth form and a sixth form. As a common structure of the fifth form and the sixth form, the absorbent article 1 includes a longitudinal direction L, a width direction W, and a thickness direction T, a crotch region S3, a front region S1, and a rear region S2, an absorbent body 40, a skin-side sheet 11, and a main body pressing portion 81. As a common structure, the absorbent body 40 has an absorbent core 41 and an auxiliary absorption layer.

[0105] As a common structure, in the width direction W, the outer edge 41E of the absorbent core 41 is located at a position closer to the inside than the outer edge of the auxiliary absorption layer. The absorbent core 41 straddles the center of the absorbent article 1 in the width direction W and is disposed opposite to the excretory opening. By using the cellulose-based fibers contained in the absorbent core, instantaneous absorbency (absorption speed) for menstrual blood and body fluids can be ensured. In addition, since the outer edge 41E of the absorbent core 41 is located at a position closer to the inside than the outer edge of the auxiliary absorption layer, when a large amount of body fluid is discharged, the body fluid exceeding the outer edge 41E of the absorbent core 41 is guided to the auxiliary absorption layer. Moreover, the auxiliary absorption layer can be used to hold the body fluid.

[0106] In the absorbent article 1 of the fifth form, the main body pressing portion 81 is disposed across the laminated region R41 (see Figure 3 ) where the absorbent core 41 and the auxiliary absorption layer are laminated and the auxiliary region R42 (see Figure 3 ) where the absorbent core 41 is not disposed and the auxiliary absorption layer is disposed. That is, the main body pressing portion 81 has a portion straddling the outer edge of the absorbent core 41. In addition, as long as at least a part of the main body pressing portion 81 straddles the laminated region R41 and the auxiliary region R42. In Figure 1 , the portion R81 where the main body pressing portion 81 straddles the laminated region R41 and the auxiliary region R42 is surrounded by a circle with a double-dot dash line.

[0107] In the absorbent article 1 adopting the fifth form, since the main body pressing portion 81 is disposed across the laminated region R41 and the auxiliary region R42, even if the absorbent core 41 does not reach the outer portion of the absorbent body 40, the stiffness of the auxiliary region R42 (the region where only the auxiliary absorption layer is disposed) can be increased, deformation of the auxiliary region R42 can be suppressed, and the area of the absorbent body 40 can be ensured. In addition, since the main body pressing portion 81 is disposed across the laminated region R41 and the auxiliary region R42, force can be transmitted within the range of the two regions, and the followability to the body can be improved over the entire width direction W of the absorbent body 40. By ensuring the area of the absorbent body 40 and enabling the entire absorbent body 40 to follow the body, body fluids can be spread over the entire absorbent body to effectively utilize the absorption capacity.

[0108] In the absorbent article 1 in the sixth form, in the crotch region S3, the distance G41 in the width direction W between the main body pressing portion 81 and the outer edge 41E of the absorbent core 41 changes. When the main body pressing portion 81 is located on the inner side of the outer edge 41E of the absorbent core 41 in the width direction W, the distance G41 is the distance along the width direction W between the outer edge 81E of the main body pressing portion 81 and the outer edge 41E of the absorbent core 41. In addition, when the main body pressing portion 81 is located on the outer side of the outer edge 41E of the absorbent core 41 in the width direction W, the distance G41 is the distance along the width direction between the inner edge of the main body pressing portion 81 and the outer edge 41E of the absorbent core 41. Further, when the main body pressing portion 81 is located on the inner and outer sides of the outer edge 41E of the absorbent core 41 in the width direction W, respectively, the distance G41 is the distance between the main body pressing portion 81 close to the outer edge 41E of the absorbent core 41 and the absorbent core. In addition, the distance G41 of the portion of the main body pressing portion 81 straddling the outer edge of the absorbent core 41 is 0 mm.

[0109] The distance G41 may not change throughout the entire region of the crotch region S3. For example, it preferably changes within a range of more than half in the front-rear direction L of the crotch region S3. Regarding whether it changes within a range of more than half in the front-rear direction L of the crotch region S3, an imaginary line that divides the crotch region into 10 equal parts in the front-rear direction is drawn, the distance G41 on each imaginary line is measured, and when more than 50% of the distances G41 are different, it is determined that the distance G41 changes within a range of more than half in the front-rear direction L of the crotch region S3.

[0110] In the absorbent article having the sixth form, in the crotch region S3, the distance G41 between the main body pressing portion 81 and the outer edge 41E of the absorbent core 41 changes. The region of the portion having a longer distance between the main body pressing portion 81 and the absorbent core 41 and between the main body pressing portion 81 and the outer edge 41E of the absorbent core 41 is likely to deform starting from the portion having a shorter distance between the main body pressing portion 81 and the outer edge 41E of the absorbent core 41. The region of the portion having a longer distance between the main body pressing portion 81 and the absorbent core and between the main body pressing portion 81 and the outer edge 41E of the absorbent core 41 functions as a buffer region, absorbs the force when the legs press from the outer side in the width direction to the inner side, and is likely to maintain the shape of the absorbent body 40. Compared with the region overlapping the absorbent core 41, the auxiliary absorbent layer has a lower stiffness in the region extending to a position outside the absorbent core 41 and is more likely to deform. However, by the region between the main body pressing portion 81 and the absorbent core 41 functioning as a buffer region, the deformation of the auxiliary absorbent layer is suppressed, and the area of the absorbent body 40 can be ensured. The absorbent body 40 can be continuously arranged relative to the body, and the followability of the absorbent body 40 to the body can be improved. By ensuring the area of the absorbent body 40 and making the entire absorbent body 40 follow the body, body fluids can be diffused over the entire absorbent body 40 and the absorption capacity can be effectively utilized.

[0111] The fifth form and the sixth form may also have other structures. For example, in the absorbent article 1 having the fifth form, it may also have the structure of the sixth form, and the structures of other forms can be appropriately adopted. For example, in the absorbent article 1 having the sixth form, similar to the absorbent article having the fifth form, the main body pressing portion 81 may be arranged across the laminated region R41 and the auxiliary region R42. In addition, in the absorbent article having the fifth form, in the crotch region S3, the distance in the width direction between the main body pressing portion 81 and the outer edge 41E of the absorbent core 41 may change. Next, the preferred structures that can be adopted in the fifth form and the sixth form will be described. The following preferred structures can be adopted in any form.

[0112] In the absorbent article of the second feature, the absorber 40 may not have the "absorbent sheet" of the present invention. More specifically, the absorber 40 may also have a so-called SAP sheet other than the "absorbent sheet" of the present invention. However, preferably, in the absorbent article of the third feature, the absorber 40 may have an absorbent sheet 45. In the form in which the absorber 40 has the absorbent sheet 45, the auxiliary absorbent layer may be constituted by the absorbent sheet 45. The absorbent sheet 45 constituting the auxiliary absorbent layer sandwiches the superabsorbent polymer 44 with the sheet 48 and is less likely to deform than the auxiliary absorbent layer constituted by a single nonwoven fabric. Therefore, the area of the absorber 40 is ensured, and it is easy to continuously adhere to the body. Since the auxiliary absorbent layer includes a superabsorbent polymer, it is possible to make the absorber relatively thin while ensuring the absorption capacity. Therefore, the followability to the body can be improved. By ensuring the area of the absorber 40 and making the entire absorber 40 follow the body, body fluids can be diffused throughout the absorber 40 and the absorption capacity can be effectively utilized.

[0113] The auxiliary absorbent layer of the present embodiment has a first absorbent sheet 451 and a second absorbent sheet 452 that sandwich the absorbent core 41 in the thickness direction T. According to this structure, the absorption capacity of the absorber 40 can be further improved by using a plurality of absorbent sheets 45, and the absorber 40 can be thinned while ensuring the absorption capacity, thereby improving the followability of the absorber. In addition, in another form, it may be that the absorbent sheet 45 has only the first absorbent sheet 451, and the absorbent sheet 45 is not disposed on the skin side T1 of the absorbent core 41. According to this form, even when the skin side sheet 11 is accidentally broken during the formation of the main body pressing portion 81 or the like, the exposure of the superabsorbent polymer 44 on the skin side can be suppressed. In addition, it may be that the absorbent sheet 45 has only the second absorbent sheet 452, and the absorbent sheet 45 is not disposed on the non-skin side T2 of the absorbent core 41. The absorbent sheet 45 located on the skin side T1 closer to the absorbent core 41 can suppress the rewetting of body fluids. In addition, on the side where the absorbent sheet is not disposed on either the skin side T1 or the non-skin side T2 of the absorbent core 41, a sheet such as tissue paper or nonwoven fabric may or may not be disposed.

[0114] The sheet 48 covering the skin side of the superabsorbent polymer 44 and the sheet 48 covering the non-skin side of the superabsorbent polymer 44 may be joined by a sheet pressing portion 46 formed by pressing the sheet 48 in the thickness direction T. By joining the sheets 48 of the absorbent sheet 45 to each other by the sheet pressing portion 46, the sheet pressing portion 46 becomes a deformation base point, and the absorbent sheet 45 deforms softly, and the followability of the absorber 40 to the body can be further improved. The sheet pressing portion 46 may have a first sheet pressing portion 461 that joins the sheets of the first absorbent sheet 451 to each other and a second sheet pressing portion 462 that joins the sheets of the second absorbent sheet 452 to each other.

[0115] The area ratio of the sheet pressing portion 46 to the total area of the absorber 40 can be higher than the area ratio of the main body pressing portion 81 to the total area of the absorber 40. In a form having a plurality of absorber sheets and provided with a sheet pressing portion on each absorber sheet as in the present embodiment, it is only necessary to satisfy any one of the conditions that the area ratio of the first sheet pressing portion 461 is higher than the area ratio of the main body pressing portion 81 and the area ratio of the second sheet pressing portion 462 is higher than the area ratio of the main body pressing portion 81. According to this structure, since the area ratio of the sheet pressing portion 46 of the auxiliary absorber layer is relatively high, the stiffness of the region where the auxiliary absorber layer is disposed is increased, and the followability to the body can be improved while ensuring the area of the absorber 40. By ensuring the area of the absorber 40 and making the entire absorber 40 follow the body, body fluid can be diffused over the entire absorber 40 and the absorption capacity can be effectively utilized. Since the area ratio of the main body pressing portion 81 is relatively low, the area of the main body pressing portion 81 in direct contact with the skin is small, and discomfort during wearing can be suppressed.

[0116] It can be as Figure 7 shown, a plurality of sheet pressing portions 46 are arranged at intervals in the front-rear direction L and the width direction W in the plan view of the absorber sheet 45. According to this mode, the sheet pressing portions 46 are arranged at intervals in the front-rear direction L and the width direction W, and the stiffness of the region where the auxiliary absorber layer is disposed is increased by the sheet pressing portions 46, and the followability to the body can be improved while ensuring the area of the absorber. The sheet pressing portions 46 can be arranged in a staggered manner as in the present embodiment, or can be arranged at intervals along the front-rear direction L, or can be arranged at intervals along the width direction W. Since a plurality of sheet pressing portions 46 serving as deformation bases are provided at intervals, the absorber 40 is more likely to deform more softly by means of the plurality of deformation bases, and the followability of the absorber 40 can be further improved.

[0117] The main body pressing part 81 may be constituted by an aggregate of pressing component parts 82 that are arranged at intervals in the front-rear direction L and the width direction W in the plan view of the absorbent body 40. The maximum size of the sheet pressing part 46 in the plan view of the absorbent body 40 may be larger than the maximum size of the pressing component part 82. The maximum sizes of the pressing component part 82 and the sheet pressing part 46 are the maximum sizes in the plan view. Measurements are taken at 5 locations of the sample and the average value is obtained. The main body pressing part 81 is provided on the skin-side sheet 11 and is easy to contact the skin. Since the maximum size of the pressing component part 82 is relatively small, the discomfort when the main body pressing part 81 directly contacts the skin can be suppressed. On the other hand, since the maximum size of the sheet pressing part 46 is relatively large, the stiffness of the area where the absorbent sheet 45 is arranged instead of the absorbent core 41 is increased by the sheet pressing part 46, the shape of the absorbent body 40 is easy to maintain, and the area of the absorbent body 40 can be ensured. The absorbent body 40 can be continuously arranged relative to the body, and the followability of the absorbent body 40 to the body can be improved. By ensuring the area of the absorbent body 40 and making the whole absorbent body 40 follow the body, body fluids can be diffused over the whole absorbent body 40 and the absorption capacity can be effectively utilized.

[0118] In a modified example, the maximum size of the sheet pressing part 46 in the plan view of the absorbent body 40 may be smaller than the maximum size of the pressing component part 82. According to this structure, since the maximum size of the pressing component part 82 is relatively large, the shape of the main body pressing part 81 is maintained, and it is easier to obtain the effect of diffusing body fluids over the entire width direction W of the absorbent body 40 and the effect of force transmission across the lamination region R41 and the auxiliary region R42. In addition, since the maximum size of the sheet pressing part 46 is relatively small, the influence caused by the sheet pressing part 46 during the swelling of the superabsorbent polymer 44 is suppressed, and the superabsorbent polymer 44 is easy to expand within the overall range in the plan view of the absorbent sheet 45, and the absorption capacity can be effectively utilized.

[0119] In the plan view of the absorbent body 40, the shortest distance between the sheet pressing parts 46 may be longer than the shortest distance between the pressing component parts 82. Since the shortest distance between the pressing component parts 82 is relatively short, the plurality of pressing component parts 82 function integrally as a deformation base point of the absorbent body 40, and the absorbent article can be deformed in a desired manner. In addition, by the plurality of pressing component parts functioning integrally, it is easier to obtain the effect of diffusing body fluids over the entire width direction W of the absorbent body 40 and the effect of force transmission across the lamination region R41 and the auxiliary region R42. The region between the sheet pressing parts 46 is a region not pressed by the sheet pressing parts 46, and is a region where the gaps between the fibers of the sheet 48 are relatively large and the superabsorbent polymer 44 is easy to swell. Since the shortest distance between the sheet pressing parts 46 is relatively long, the superabsorbent polymer 44 is easy to swell, and it is easier to effectively utilize the absorption capacity.

[0120] The main body pressing part 81 straddles the outer edge 41E of the absorbent core 41, and has an outer pressing part 811 located at a position outside the outer edge 41E of the absorbent core 41 in the width direction and an inner pressing part 812 located at a position inside the outer edge 41E of the absorbent core 41 in the width direction. The part where the outer pressing part 811 and the inner pressing part 812 are connected becomes the part straddling the laminated region R41 and the auxiliary region R42. The part of the laminated region R41 and the auxiliary region R42 may also be a region R85 composed only of the pressing component parts 82 arranged at intervals, but preferably, it may be a region R86 composed of the pressing component parts 82 and the linear pressing part 83. The region R86 composed of the pressing component parts 82 and the linear pressing part 83 has both the pressing component parts 82 and the linear pressing part 83, and can further obtain the effect of improving the stiffness of the auxiliary region R42 and the effect of being able to transmit force to the laminated region R41 and the auxiliary region R42.

[0121] The main body pressing part 81 may have an outer pressing part 811 and an inner pressing part 812 in the crotch region S3. The crotch region S3 is liable to bear the force applied from the legs or the like toward the inside in the width direction. According to this structure, the outer pressing part 811 can bear the force before being applied to the outer edge 41E of the absorbent core 41, and the deformation of the outer edge 41E of the absorbent core 41 can be suppressed. In addition, the inner pressing part 812 is used to suppress the deformation of the absorbent core 41, and it is easy to maintain the shape of the absorbent core 41, and it is more easy to effectively utilize the absorption capacity.

[0122] The main body pressing part 81 may also have an outer pressing part 811 and an inner pressing part 812 in the regions other than the crotch region S3 (the front region S1 and the rear region S2). In the front region S1 and the rear region S2, the effect of suppressing the deformation of the absorbent core 41 can be further obtained. In addition, the part R81 of the main body pressing part 81 straddling the laminated region R41 and the auxiliary region R42 only needs to be provided in the crotch region S3 at least, but it can be provided in the crotch region S3, the front region S1, and the rear region S2 respectively. The area of the absorbent body 40 can be ensured within the entire range in the front-rear direction of the absorbent body 40, and the absorption capacity can be effectively utilized.

[0123] The main body pressing portion 81 can be arranged across the overlapping region R41 and the auxiliary region R42 in the crotch region S3 and the front side region S1. The number of portions (R81) across the overlapping region R41 and the auxiliary region R42 in the front side region S1 can be larger than the number of portions across the overlapping region R41 and the auxiliary region R42 in the crotch region S3. According to this mode, since the number of portions across the overlapping region R41 and the auxiliary region R42 in the crotch region S3 is small, while suppressing the deformation of the absorber 40 in the crotch region S3, it is also possible to suppress the discomfort caused by the excessive increase in the stiffness of the crotch region S3. In addition, since the number of portions across the overlapping region R41 and the auxiliary region R42 in the front side region S1 is large, it is easy to continuously ensure the length in the width direction of the absorber 40 in the front side region S1, and the absorber can be attached in a planar shape along the groin portion.

[0124] The main body pressing portion 81 can be arranged across the overlapping region R41 and the auxiliary region R42 in the crotch region S3 and the rear side region S2. The number of portions across the overlapping region R41 and the auxiliary region R42 in the rear side region S2 can be larger than the number of portions across the overlapping region R41 and the auxiliary region R42 in the crotch region S3. According to this mode, since the number of portions across the overlapping region R41 and the auxiliary region R42 in the crotch region S3 is small, while suppressing the deformation of the absorber 40 in the crotch region S3, it is also possible to suppress the discomfort caused by the excessive increase in the stiffness of the crotch region S3. In addition, since the number of portions across the overlapping region R41 and the auxiliary region R42 in the rear side region S2 is large, it is possible to maintain the shape of the absorber 40 in the rear side region S2 that is easily deformed due to the movement of the buttocks, and continuously ensure the length in the width direction of the absorber 50.

[0125] The portion R81 of the main body pressing portion 81 across the overlapping region R41 and the auxiliary region R42 can be respectively arranged in the front side and the rear side of the crotch narrowest position 41CN (refer to Figure 6 ) in the crotch region. By arranging the main body pressing portion 81 across the outer edge 41E of the absorption core at a position outside the crotch narrowest position 41CN, which is the narrowest width of the absorption core, in the crotch region where the force of the leg is easily borne, it is easy to suppress the deformation in the width direction of the crotch narrowest position 41CN, and it is more easy to effectively utilize the absorption capacity.

[0126] At least a part of the main body fixing portion 61 may be disposed in the auxiliary region R42. The auxiliary region R42 is fixed to the wearing article S by means of the main body fixing portion 61. Since the region fixed to the wearing article S is stable, deformation of the auxiliary region R42 is suppressed, and the area of the auxiliary region R42 can be ensured. The area of the main body fixing portion 61 disposed overlapping the auxiliary region R42 may be larger than the area of the main body fixing portion 61 disposed overlapping the stacking region R41. More preferably, the main body fixing portion 61 may be disposed without overlapping the stacking region R41 and only overlap the auxiliary region R42. According to this structure, while maintaining the shape of the auxiliary region R42, the flexibility of the stacking region R41 with a relatively high rigidity where the absorbent core 41 is disposed can be maintained, and the entire absorbent body can be deformed softly to improve the followability to the body.

[0127] At least a part of the main body fixing portion 61 may overlap with the main body pressing portion 81 disposed in the auxiliary region R42. According to this structure, the region of the auxiliary region R42 where the main body pressing portion 81 is disposed is fixed to the wearing article S by means of the main body fixing portion 61. Since the region fixed to the wearing article S is stable, unintentional deformation of the main body pressing portion 81 in the auxiliary region R42 can be suppressed. By stabilizing the shape of the main body pressing portion 81, the area of the absorbent body can be ensured and the followability to the body can be improved.

[0128] In the width direction W, the outer edge 451E of the first absorbent sheet 451 and the outer edge 452E of the second absorbent sheet 452 may be offset. Since the outer edge 451E of the first absorbent sheet 451 and the outer edge 452E of the second absorbent sheet 452 are offset, only one absorbent sheet is disposed in the outer portion of the absorbent sheet 45 instead of two absorbent sheets. The thickness of the outer portion of the absorbent sheet is suppressed by disposing one absorbent sheet, and the rigidity can be reduced. The outer portion of the absorbent sheet is easily bent, which helps to reduce discomfort, and this portion is easily expanded when absorbing body fluids, and the absorption capacity can be effectively utilized.

[0129] The absorbent sheet 45 may contain a superabsorbent polymer 44 and a cellulose-based fiber. By the presence of the cellulose-based fiber, the situation where the superabsorbent polymer flows unintentionally is suppressed, and the superabsorbent polymer can be disposed within the entire range in the plan view of the absorbent sheet. The unit area weight of the cellulose-based fiber of the absorbent sheet may be less than the unit area weight of the superabsorbent polymer of the absorbent sheet. Since the unit area weight of the cellulose-based fiber is relatively low and the unit area weight of the superabsorbent polymer is relatively high, the thickness of the entire absorbent sheet can be suppressed while ensuring the absorption capacity. By suppressing the thickness of the entire absorbent sheet to improve the followability of the absorbent sheet to the body, discomfort during wearing can be suppressed.

[0130] The thickness of the absorber 40 in the auxiliary region R42 can be less than 80% of the thickness of the absorber in the stacked region R41. The comparison of the thicknesses can be made with the maximum thickness. According to this method, the thickness of the outer portion of the absorber can be suppressed. Therefore, the discomfort when the outer portion of the absorber abuts against the leg can be suppressed. In addition, in a form having an absorber sheet as the auxiliary absorption layer, when absorbing body fluid, the outer portion of the absorber sheet is liable to expand, and the absorption capacity of the absorber sheet can be effectively utilized. The thickness of the absorber 40 in the auxiliary region R42 can be 2.4 mm or less, preferably 1.0 mm or less, and more preferably 0.7 mm or less. The thickness of the absorber 40 in the stacked region R41 can be 3.0 mm or less, preferably 1.5 mm or less. In addition, this thickness can be an average thickness. In a state where the absorbent article is frozen with liquid nitrogen so that the thickness of the absorbent article does not change, the absorbent article is cut along a cross-section in the width direction, and after air-drying for 24 hours, the thickness of this cut surface is measured at 5 mm intervals in the width direction, and the average thickness can be calculated using its average value.

[0131] The non-skin side T2 of the auxiliary region R42 of the absorber can be covered with a hydrophobic sheet. In the present embodiment, the first non-skin side sheet 21 is composed of a hydrophobic sheet, and the non-skin side T2 of the auxiliary region R42 is covered with the first region 211 of the first non-skin side sheet 21. According to this structure, by covering the non-skin side T2 of the auxiliary region R42 with a hydrophobic sheet, side leakage can be suppressed when the superabsorbent polymer 44 of the absorber sheet 45 swells, and the state where the swollen superabsorbent polymer 44 comes into contact with the wearer's leg can be suppressed. In addition, it can be that the skin side T1 of the auxiliary region R42 of the absorber 40 is also covered with a hydrophobic sheet. In the present embodiment, the skin side T1 of the auxiliary region R42 is covered with the second region 212 of the first non-skin side sheet 21. According to this structure, side leakage can also be suppressed when the superabsorbent polymer 44 of the absorber sheet 45 swells, and the state where the swollen superabsorbent polymer 44 comes into contact with the wearer's skin can be suppressed.

[0132] The first non-skin side sheet 21 can be folded back at the outer edge of the absorber 40, cover the outer portion of the absorber 40, and be disposed across the skin side T1 and the non-skin side T2 of the absorber 40. According to this structure, side leakage can be further suppressed when the superabsorbent polymer 44 of the absorber sheet 45 swells.

[0133] The skin-side joint portion 35 may join only the skin-side sheet 11 and the second region 212 among the skin-side sheet 11, the second region 212, and the absorbent sheet 45. That is, the skin-side joint portion 35 may not join the absorbent sheet together with the skin-side sheet 11 and the second region 212. Since the absorbent sheet 45 is not joined by the skin-side joint portion 35, it is possible to suppress a situation where the thickness-direction expansion of the absorbent sheet is hindered by the presence of the skin-side joint portion, and the absorption capacity can be effectively utilized.

[0134] (5) The third feature of the absorbent article

[0135] Next, the third feature of the absorbent article will be described in detail. The absorbent article 1 having the third feature is configured to improve the wearing feeling by reducing the discomfort of the absorbent article 1 and to give an impression that the absorbent article 1 is a thin-type absorbent article by the touch feeling of the absorbent article 1, thereby being able to improve the wearing feeling. The absorbent article 1 having the third feature is roughly classified into the seventh form to the ninth form. As a common structure of the seventh form and the ninth form, the absorbent article 1 includes a longitudinal direction L, a width direction W, and a thickness direction T, a crotch region S3, a front region S1, and a rear region S2, an absorbent body 40, and side sheets.

[0136] The side sheets 90 are disposed at least on both sides in the width direction W of the absorbent body 40. The side sheets 90 may be disposed only at positions outside the absorbent body 40 in the width direction W. The side sheets 90 disposed only at positions outside the absorbent body 40 in the width direction W may overlap with the outer edge 40E of the absorbent body 40 or may be separated from the outer edge 40E of the absorbent body 40 and disposed at positions outside the outer edge 40E of the absorbent body 40 in the width direction W. Alternatively, the side sheets 90 may be disposed not only at positions outside the absorbent body 40 in the width direction W but also overlap with the absorbent body 40 in the thickness direction T. That is, the side sheets 90 may be disposed across the outer edge 40E of the absorbent body 40 in the width direction W.

[0137] The side sheets 90 may be composed of only one sheet or may have a first side sheet 91 and a second side sheet 92. The material of the first side sheet 91 and the material of the second side sheet 92 may be the same or different. The first side sheet 91 and the second side sheet 92 may be made of a non-woven fabric having fibers. The first side sheet 91 and the second side sheet 92 may partially overlap in the thickness direction T or may be separated without overlapping. In the form in which the first side sheet 91 and the second side sheet 92 overlap, the second side sheet 92 may be disposed on the non-skin side T2 of the first side sheet 91.

[0138] The second side piece 92 may have a protruding region R92 that forms the surface of the skin side T1 of the absorbent article 1 at a position outside the outer edge 91E of the first side piece 91 in the width direction W. The protruding region R92 is a region of the second side piece 92 that is located outside the outer edge 91E of the first side piece 91 in the width direction W and forms the surface of the skin side T1 of the absorbent article 1.

[0139] The first side piece 91 may have a skin-side folding portion 912 that folds back toward the skin side T1 from a side fold line located outside the outer edge 40E of the absorber 40 in the width direction W, and a non-skin-side folding portion 911 that folds back toward the non-skin side T2 from the side fold line. The side fold line forms the outer edge 91E of the first side piece 91. In the form in which the first non-skin-side piece 21 of the present embodiment forms the first side piece 91, the first region 211 of the first non-skin-side piece 21 forms the non-skin-side folding portion 911, and the second region 212 of the first non-skin-side piece 21 forms the skin-side folding portion 912. The second side piece 92 may have a covering region R91 that covers the surface of the non-skin side T2 of the non-skin-side folding portion 911 of the first side piece 91. The covering region R91 may either abut against the surface of the non-skin side T2 of the non-skin-side folding portion 911 or overlap with it with other members in between.

[0140] The side piece 90 has a skin-side region that forms the surface of the skin side T1 of the absorbent article 1 at a position outside the outer edge 40E of the absorber 40 in the width direction W. The skin-side region may be provided on a single side piece or on a plurality of side pieces respectively. The side piece 90 may also span the skin-side region and a region other than the skin-side region (the region overlapping the absorber).

[0141] Figure 10 It is a diagram showing the arrangement pattern of the side piece 90. In addition, in Figure 10 the structures other than the side piece 90 and the absorber 40 are omitted. In Figure 10 the form shown in (a) of Figure 10In the form shown in (a), since the first side piece 91 folded back by the side crease covers the side of the absorber, and the second side piece 92 straddles the covering region R91 and the extending region R92, the leakage resistance of body fluids can be improved. In addition, since the inner edge of the second side piece 92 is located at a position closer to the inner side in the width direction than the outer edge of the first side piece 91, the inner edge of the second side piece is not likely to contact the skin, and discomfort can be reduced.

[0142] In Figure 10 the form shown in (b), the first side piece 91 is the same as Figure 10 the form shown in (a). A pair of the first side piece 91 and the second side piece 92 are arranged at an interval in the width direction W. The second side piece 92 does not extend to a position outside the outer edge 91E of the first side piece 91 and does not have an extending region R92. The outer edge 92E of the second side piece 92 coincides with the outer edge 91E of the first side piece 91 or is located at a position closer to the inner side in the width direction W than the outer edge 91E of the first side piece 91. The region of the skin-side folded-back portion 912 outside the outer edge 40E of the absorber 40 constitutes the skin-side region. In Figure 10 the form shown in (b), since the first side piece 91 folded back by the side crease covers the side of the absorber, the leakage resistance of body fluids can be improved.

[0143] In Figure 10 the form shown in (c), the first side piece 91 is the same as Figure 10 the form shown in (a). A pair of the first side piece 91 and the second side piece 92 are arranged at an interval in the width direction W. The second side piece 92 does not overlap with the non-skin-side folded-back portion 911 of the first side piece 91 and does not have a covering region R91. The outer edge 92E of the second side piece 92 is located at a position outside the outer edge 91E of the first side piece 91 in the width direction W. The second side piece 92 has an extending region R92. The region of the skin-side folded-back portion 912 outside the outer edge 40E of the absorber 40 and the extending region R92 constitute the skin-side region. In Figure 10 the form shown in (c), since the number of sheets in the region extending outward in the width direction from the outer edge of the absorber is small, when the wing is folded back to the non-skin side and used, the thickness of the portion contacting the leg is thin, and it is easier to give the impression of a thin absorbent article 1. In addition, since the first side piece 91 folded back by the side crease covers the side of the absorber, the leakage resistance of body fluids can be improved.

[0144] In Figure 10In the form shown in (d), the first side piece 91 is not folded with the side crease as a base point. The first side piece 91 is disposed so as to cover the entire surface of the skin side T1 of the absorber 40. The first side piece 91 covers the skin side T1 of the absorber 40 and does not cover the non-skin side T2 of the absorber 40. The second side piece 92 has a protruding area R92 located on the outer side in the width direction than the outer edge of the first side piece 91. Since the first side piece 91 does not have a non-skin side folded-back portion, the second side piece 92 does not have a covering area. The area of the first side piece 91 outside the outer edge 40E of the absorber 40 and the protruding area R92 constitute the skin side area. In Figure 10 In the form shown in (d), the side portion of the absorber is not covered by the first side piece 91, but the first side piece 91 and the second side piece 92 overlap at a position outside the outer edge of the absorber 40 in the width direction, which can improve the leakage resistance of body fluids. In addition, since the inner edge of the second side piece 92 is located on the inner side in the width direction than the outer edge of the first side piece 91, the inner edge of the second side piece is not likely to contact the skin, and discomfort can be reduced.

[0145] In Figure 10 In the form shown in (e), the first side piece 91 is the same as Figure 10 the form shown in (d). Another side piece is disposed between the first side piece 91 and the absorber 40. The other side piece covers the skin side T1 and the non-skin side T2 of the absorber 40. The second side piece 92 covers the non-skin side T2 of the other side piece and extends to a position outside the first side piece 91 in the width direction W. Since the first side piece 91 does not have a non-skin side folded-back portion, the second side piece 92 does not have a covering area. The second side piece 92 extends to a position outside the first side piece 91 in the width direction W and has a protruding area R92. The area of the first side piece 91 outside the outer edge 40E of the absorber 40 and the protruding area R92 constitute the skin side area. In Figure 10 In the form shown in (e), since the side of the absorber is covered by the first side piece 91 folded back using the side crease and the second side piece 92 covers the non-skin side T2 of the other side piece and extends to a position outside the first side piece 91 in the width direction W, the leakage resistance of body fluids can be improved. In addition, since the second side piece 92 extends to a position on the inner side in the width direction than the outer edge of the first side piece 91, the discomfort caused by the inner edge of the second side piece contacting the skin can be reduced.

[0146] In Figure 10 (a) to Figure 10 (e) of, the arrangement pattern of the side piece 90 of the absorbent article of the third feature is illustrated as an example, but the arrangement pattern of the side piece of the third feature is not limited to Figure 10The form shown. Next, the third feature will be described with reference to the absorbent article of the embodiment. In addition, the absorbent article of the embodiment is an example, and the absorbent article of the third feature also includes Figure 10 The arrangement pattern shown, and other structures can be adopted. In Figures 1 to 9 In the embodiment shown, the first non-skin side sheet 21 constitutes the first side sheet 91, and the second non-skin side sheet 22 constitutes the second side sheet 92. In Figure 3 The protruding area R92 and the covering area R91 are illustrated.

[0147] Next, the seventh form of the absorbent article of the third feature will be described. In the absorbent article 1 of the seventh form, the side sheet 90 has a first side sheet 91 and a second side sheet 92, and the second side sheet 92 has a protruding area R92. The average coefficient of friction (MIU) of the skin side T1 surface of the protruding area R92 is lower than the average coefficient of friction (MIU) of the outer surface of the first side sheet 91. In addition, the outer surface of the first side sheet 91 is the surface arranged toward the outside in the first side sheet 91. In the structure in which the first side sheet 91 is folded based on the side crease, the outer surface of the first side sheet 91 includes the skin side T1 surface, the outer surface in the width direction, and the non-skin side T2 surface. In the structure in which the first side sheet covers the skin side of the absorbent body, the outer surface of the first side sheet 91 is the skin side surface. In the structure in which the first side sheet 91 covers the non-skin side of the absorbent body 40 and can stand up based on the non-skin side joint portion 30, the outer surface of the first side sheet 91 is the non-skin side surface of the area outside the non-skin side joint portion 30 in the width direction.

[0148] When the absorbent article 1 is pressed inward in the width direction W by the wearer's leg, the wearer's leg rubs against the skin side surface of the protruding area R92 outside the first side sheet 91 in the width direction W. At this time, since the average coefficient of friction (MIU) of the skin side surface of the protruding area R92 is low, the second side sheet 92 smoothly adheres to the leg, preventing the leakage of body fluids by not allowing body fluids to penetrate through, and at the same time reducing the discomfort when adhering to the leg. And according to the smooth adhesion touch of the second side sheet 92, the wearer is more likely to feel the ease of slippage compared to the cushioning of the absorbent article 1, and it is easier to obtain the impression of a thin type that deforms along the surface rather than a thick absorbent article 1 with cushioning. Therefore, according to the touch during wearing, the wearer is easy to obtain the impression of whether it is a thin type, and the wearing feeling can be improved.

[0149] Here, the mean coefficient of friction (MIU) can be measured by the following method. Using the KES-FB4-A-AUTO (automated surface tester) manufactured by Kato Tech Co., Ltd., Japan, a 100 mm × 100 mm sample of each sheet is placed on a smooth metal plane test bench for testing. In the case where it is difficult to obtain a 100 mm × 100 mm sample, the sample is cut to an extractable size. Each sample is horizontally moved at a constant speed of 0.1 cm / sec in the machine direction (fiber orientation direction) when manufacturing each nonwoven fabric by 0 cm to 2 cm. Using a friction member (probe) with an outer dimension of 5 mm × 5 mm, under the condition of an initial load of 50 gf, the mean coefficient of friction within the moving range is calculated as MIU. The same measurement is performed 5 times for each sample, and the average is taken as the MIU value of each sample.

[0150] In the absorbent article 1 of the eighth form, the side sheet 90 has a first side sheet 91 and a second side sheet 92. The second side sheet 92 may have an extended area R92. The first side sheet 91 has a skin-side folded-back portion 912 and a non-skin-side folded-back portion 911. The second side sheet 92 has a covering area R91. A non-joined area where the non-skin-side folded-back portion 911 and the covering area R91 are not joined extends from the side fold line toward the inner side in the width direction W. The non-joined area is, in the embodiment, the area between the outer edge 21E of the first non-skin-side sheet 21 and the non-skin-side joining portion 30. According to this structure, when the absorbent article 1 is pressed inward in the width direction by the wearer's leg, the wearer's leg easily abuts near the side fold line of the first side sheet 91. At this time, in the non-joined area, the first side sheet is not joined to the second side sheet and is easily deformed by the pressing. Through the deformation of the first side sheet, the discomfort when the leg abuts against the outer portion of the absorbent article can be reduced.

[0151] In the eighth form, the mean coefficient of friction (MIU) of the skin-side T1 surface of the second side sheet 92 is lower than the mean coefficient of friction (MIU) of the outer surface of the first side sheet 91. According to this structure, when the absorbent article is pressed inward in the width direction by the wearer's leg, the wearer's leg inserts into the area between the first side sheet 91 and the second side sheet 92 in the non-joined area extending from the side fold line toward the inner side in the width direction and rubs against the skin-side T1 surface of the covering area R91. At this time, since the mean coefficient of friction (MIU) of the skin-side surface of the second side sheet 92 is lower, the second side sheet 92 smoothly abuts against the leg, and the discomfort when abutting against the leg can be reduced. Also, according to the smooth abutting touch of the second side sheet 92, the wearer is more likely to feel the ease of slippage rather than the buffering property of the absorbent article 1, and it is easy to obtain the impression of a thin type that deforms along the surface rather than a thick absorbent article 1 with a buffering property. Therefore, according to the touch during wearing, the wearer can easily obtain the impression of whether it is a thin type, and the wearing feeling can be improved.

[0152] In the absorbent article 1 of the ninth embodiment, the side sheet 90 has a skin-side region. An impermeable film layer 95 is provided in the skin-side region (see Figure 10 (a) of the figure). In the ninth embodiment, the side sheet 90 only needs to have at least one of the first side sheet 91 and the second side sheet 92, and only needs to have a skin-side region in at least one of them. The impermeable film layer 95 is provided on the skin-side surface of the skin-side region. The side sheet constituting the skin-side region may be composed only of the film layer 95, or may be a laminated sheet of the film layer and other layers (such as a non-woven fabric layer 96). In addition, the impermeable film layer means that after taking out this part from the product, 1 ml of physiological saline is dropped from a height of 3 cm to the skin-side surface of this part, and the water droplet does not penetrate to the non-skin-side surface within 5 minutes after dropping. In addition, the dropping is performed by changing the position, and the measurement is performed at three positions. When the water droplet does not penetrate to the non-skin-side surface within 5 minutes at any of the three positions, it is an impermeable film layer. The film layer may not form visually recognizable holes. The film layer may also form fine holes that are not easily visually recognizable (such as holes of 20 μm or less). When it is impossible to judge whether visually recognizable holes are formed in the film layer, it may also be evaluated by the average coefficient of friction (MIU). When the average coefficient of friction (MIU) is 0.3 or less, it can be judged that the film layer does not form visually recognizable holes.

[0153] According to this structure, the wearer's leg or crotch rubs against the skin-side region during wearing. At this time, since the skin-side region is the impermeable film layer 95, the skin-side region smoothly adheres to the leg, and the discomfort during adhesion and rubbing can be reduced. In addition, according to the smooth adhesion touch of the skin-side region, the wearer is more likely to feel the ease of slipping rather than the cushioning of the absorbent article, and it is easier to obtain the impression of a thin type with a thickness that deforms along the surface rather than a thick absorbent article with cushioning. Therefore, according to the touch during wearing, the wearer is likely to obtain the impression of whether it is a thin type, and the wearing feeling can be improved.

[0154] The seventh to ninth embodiments may also have other structures. For example, in the absorbent article 1 of the seventh embodiment, it may also have the structures of the eighth and ninth embodiments, and the structures of other embodiments may be appropriately adopted. Next, the preferred structures that can be adopted in the seventh to ninth embodiments will be described. The following preferred structures can be adopted in any of the embodiments.

[0155] The second side piece 92 can be disposed on the surface of the skin side T1 of the wing 5. When the wing 5 is worn in a state of being folded back to the non-skin side T2 of the wearing article S during wearing, the second side piece 92 is disposed so as to cover the skin side of the wearing article S from the region folded back to the non-skin side T2 of the wearing article S. When the leg abuts against the outer portion of the wearing article S, the second side piece 92 disposed by being involved in the wearing article S is not easily displaced, and the leg slides on the second side piece 92. At this time, since the surface of the skin side T1 of the second side piece 92 smoothly abuts against the skin, it is possible to reduce the discomfort when abutting against the leg, and it is possible to give an impression of a thin absorbent article 1 and improve the wearing feeling.

[0156] The hydrophobicity of the surface of the skin side T1 of the second side piece 92 can be higher than the hydrophobicity of the outer surface of the first side piece 91. Hydrophobicity is the resistance to water pressure and indicates the difficulty of water (body fluid) passing through. In the form in which the second side piece 92 has the protruding region R92, even if the body fluid diffuses beyond the first side piece and reaches the second side piece, since the hydrophobicity of the second side piece 92 is relatively high, it is possible to suppress the body fluid from reaching the wearing article and suppress the deterioration of the wearing feeling caused by the attachment of the body fluid to the wearing article. In addition, in the form in which the second side piece 92 has the covering region R91, even if the body fluid reaches the second side piece located on the non-skin side of the first side piece, since the hydrophobicity of the second side piece 92 is relatively high, it is possible to suppress the body fluid from reaching the wearing article and suppress the deterioration of the wearing feeling caused by the attachment of the body fluid to the wearing article.

[0157] The evaluation of hydrophobicity can be carried out as follows. First, a sample to be measured is obtained from the absorbent article. When the target piece is joined to other members by an adhesive, welding, etc., the joint is taken out after removing the adhesive force by a method such as blowing cold air of a low-temperature jet within a range that does not affect the contact angle of the fiber. After obtaining the sample to be measured, the degree of hydrophobicity is evaluated by the JIS L1092A method (low water pressure method). The larger the measured value, the higher the water resistance can be evaluated.

[0158] The hydrophobicity of the surface of the skin side T1 of the second side piece 92 can be the same as or higher than the hydrophobicity of the surface of the non-skin side T2 of the absorbent article 1. The surface of the non-skin side T2 of the absorbent article 1 can be composed of a liquid-impermeable sheet, and in the present embodiment, it is composed of the third non-skin side piece 23. Since the hydrophobicity of the surface of the skin side T1 of the second side piece 92 is the same as or higher than the hydrophobicity of the surface of the non-skin side T2 of the absorbent article 1, the second side piece 92 does not easily allow the body fluid to pass through, can suppress the body fluid from reaching the wearing article, and can suppress the deterioration of the wearing feeling caused by the attachment of the body fluid to the wearing article.

[0159] The average deviation (SMD) of the surface roughness of the surface of the skin side T1 of the second side piece 92 can be lower than the average deviation (SMD) of the surface roughness of the outer surface of the first side piece 91. Since the average deviation (SMD) of the surface roughness of the first side piece 91 is relatively high, when the first side piece 91 is applied to the leg, it does not adhere with a smooth surface but is likely to adhere with points formed by unevenness, reducing the contact area and further suppressing discomfort. On the other hand, since the average deviation (SMD) of the surface roughness of the second side piece 92 is relatively low, when the wearer's leg slides on the surface of the skin side T1 of the second side piece 92, the second side piece 92 adheres smoothly to the skin. Therefore, it is possible to reduce the discomfort when adhering to the leg and to give an impression of a thin absorbent article, thereby improving the wearing feeling.

[0160] Here, the average deviation (SMD) of the surface roughness can be measured based on the characteristic values of KES manufactured by Kato Tech Co., Ltd. in Japan, which are generally known as characteristic values representing the touch feeling of the surface of the sheet (reference: Standardization and Analysis of Hand Evaluation (2nd Edition), written by Yoshio Kawabata, published on July 10, 1980). Specifically, using KES-FB4 manufactured by Kato Tech Co., Ltd. in Japan, a 100 mm × 100 mm sample is placed on a test bench of a smooth metal plane as a specimen for measuring the surface characteristics. When it is difficult to obtain a 100 mm × 100 mm specimen, the specimen is cut to an extractable size. The average deviation of the surface roughness is measured by applying a load of 10 gf to the front (or back) surface thereof and pressing a contact terminal with a width of 0.5 cm formed by coiling a piano wire with a diameter of 0.5 mm against the specimen. The specimen is horizontally moved at a constant speed of 0.1 cm / sec for 2 cm, and a uniaxial tension of 10 g / cm is applied to the specimen. The SMD (average deviation of the surface roughness) is obtained from the measurement results. The SMD is obtained for 5 specimens, and the average value is taken.

[0161] The amount of fiber fuzzing of the second side piece 92 can be less than the amount of fiber fuzzing of the first side piece 91. According to this structure, since the amount of fuzzing of the second side piece 92 is small, uncomfortable stimuli such as tingling caused by fiber fuzzing are less likely to be perceived by the wearer, and the second side piece 92 is likely to adhere smoothly to the leg. Therefore, it is possible to reduce the discomfort when adhering to the leg and to give an impression of a thin absorbent article, thereby improving the wearing feeling. The "amount of fiber fuzzing" means the number of fuzzed fibers fn per unit area of the target area. In addition, when comparing the amount of fiber fuzzing in each area, the amount of fiber fuzzing in each area can be compared by performing a friction fastness test, which is used as an evaluation method for fuzzing in this industry. The friction fastness test can be performed as follows.

[0162] <Friction Fastness Test>

[0163] (1) Cut out a measurement target area from the non-woven fabric constituting the surface sheet in a predetermined size (e.g., 300 mm × 150 mm) to obtain a measurement sample.

[0164] (2) Fix the measurement sample on the measurement stage of a staining fastness tester (manufactured by Dainichi Kagaku Seiki Co., Ltd.).

[0165] (3) Mount a 200 g counterweight on the upper surface of the friction terminal of the staining fastness tester, and paste a cloth tape forming a friction surface on the lower surface.

[0166] (4) Rub the surface of the measurement sample fixed on the measurement stage with the friction surface of the above-mentioned friction terminal. At this time, the reciprocating number of the friction terminal is 3 times, and the moving range (reciprocating width) of the friction terminal is 120 mm.

[0167] (5) Observe the fuzzing state of the surface of the measurement sample after being rubbed by the friction terminal.

[0168] A liquid-impermeable film layer 95 can be provided on the surface of the skin side T1 of the second side piece 92. When the leg or crotch of the wearer abuts or rubs against the second side piece 92, the film layer 95 smoothly abuts against the leg or the like. Therefore, it is possible to reduce the discomfort when abutting against the leg, and it is possible to give an impression of a thin absorbent article and improve the wearing feeling.

[0169] The second side piece can be composed only of the film layer 95, or can be a laminated sheet of the film layer 95 and a liquid-permeable non-woven fabric layer 96. The non-woven fabric layer 96 is disposed at a position closer to the non-skin side T2 than the film layer 95. By the second side piece 92 having the film layer 95 and the non-woven fabric layer 96, it is possible to achieve both the effect of suppressing discomfort by the soft deformation of the non-woven fabric layer 96 and the effect of suppressing liquid leakage by the film layer 95. In addition, in the form having the wing 5, by having the non-woven fabric layer 96, it is easy to form a habitual bend of the wing 5, maintain the folded state, and it is not easy to recover. By maintaining the folded state of the wing 5, it is possible to maintain the crease of the wing 5 and reduce the discomfort caused to the leg.

[0170] The absorbent article 1 may have a backsheet disposed at a position on the non-skin side T2 relative to the absorber 40, forming the surface of the non-skin side T2 of the absorbent article 1. The backsheet may be constituted by the third non-skin side sheet 23 of the present embodiment. In a region on the outer side in the width direction W relative to the side fold (the outer edge 91E of the first side sheet 91), the backsheet and the second side sheet 92 may be laminated. Between the side fold and the outer edge of the absorber 40, the skin-side folded-back portion 912 and the non-skin-side folded-back portion 911 may be laminated. The light transmittance of the region where the backsheet and the second side sheet 92 are laminated may be higher than the light transmittance of the region where the skin-side folded-back portion 912 and the non-skin-side folded-back portion 911 are laminated. According to this structure, the light transmittance of the region where the backsheet and the second side sheet are laminated is relatively high and it is easy to transmit light. It is easy for the wearer to obtain the impression that the region where the backsheet and the second side sheet are laminated is thinner, is easily deformed softly and is gentle on the skin. On the other hand, the light transmittance of the region where the skin-side folded-back portion and the non-skin-side folded-back portion are laminated is relatively low and it is not easy to transmit light. It is easy for the wearer to obtain the impression that the region where the skin-side folded-back portion and the non-skin-side folded-back portion are laminated has a thickness and body fluids are not easily leaked, and it is easy to obtain a sense of security against leakage. According to the difference in appearance between the two regions, it is possible to give a sense of security regarding the absorption performance of body fluids while giving an impression of being easily deformed and having a thin thickness.

[0171] Herein, the "light transmittance" is measured in accordance with JIS K7105-7136. The light transmittance can be measured, for example, using a haze meter (model NDH700P2) manufactured by Nippon Denshoku Industries Co., Ltd. The measurement sensor is a circle with a diameter of 20 mm. When the region to be measured is larger than the measurement sensor, the measurement is carried out as it is. When the region to be measured is smaller than the sensor, for example, a hole with a diameter of 20 mm or less is opened in a sample with a transmittance of 0%, and this hole is fixed at an arbitrary position inside the sensor. Then, the region to be measured is set in the hole and the transmittance is measured. The transmittance of the region is converted by comparing it with the transmittance without a sample, with the transmittance without a sample being set as 100. The measurement is carried out at 5 places on the sample and the average value is taken.

[0172] The absorbent article 1 may have a topsheet that covers the skin side of the absorber 40 at the center in the width direction of the absorber and abuts against the wearer. The topsheet may be a liquid-permeable sheet or may be constituted by the skin-side sheet 11 of the present embodiment, and may also be constituted by the side sheet in the form as shown in (d) of Figure 10 and Figure 10 (e) of Figure 3As shown, the second region 212 of the first non-skin-side sheet 21 is joined to the skin-side surface of the skin-side sheet 11 by the skin-side joining portion 35. According to this structure, by covering the skin-side surface of the topsheet with the first side sheet 91 that covers the side of the absorber, even when body fluid flows along the surface of the topsheet, side leakage can be suppressed by the first side sheet 91.

[0173] Between the side fold line and the outer edge of the absorber, the skin-side folded-back portion 912, the non-skin-side folded-back portion 911, and the topsheet are laminated. The thickness obtained by combining the backsheet and the second side sheet 92 can be thinner than the thickness obtained by combining the non-skin-side folded-back portion, the skin-side folded-back portion, and the topsheet of the first side sheet 91. The measurement of this thickness is performed by cutting the absorbent article along a cross-section in the width direction in a state where the absorbent article is frozen with liquid nitrogen so that the thickness of the absorbent article does not change, and the thickness of the cut surface can be measured after air-drying for 24 hours. According to this method, since the thickness obtained by combining the backsheet and the second side sheet 92 is thin, the thinness is easily felt when the leg slides on the surface of the second side sheet 92. Especially when the second side sheet 92 forms a wing, when it is wound around the wearing article, the leg easily adheres to the second side sheet 92, and the thinness is more easily transmitted. On the other hand, since the thickness obtained by combining the skin-side folded-back portion, the non-skin-side folded-back portion, and the topsheet is thick, the buffering property provided by the thickness of the first side sheet 91 increases when the leg adheres to the first side sheet 91 from the side fold line side, and the discomfort when adhering to the side fold line can be reduced.

[0174] In the absorbent article of the third feature, the absorber 40 may not have the "absorbent sheet" of the present invention. More specifically, the absorber 40 may have a so-called SAP sheet other than the "absorbent sheet" of the present invention, or may have an absorbent core. However, preferably, in the absorbent article of the third feature, the absorber 40 may have an absorbent sheet 45. By the absorber having an absorbent sheet with a superabsorbent polymer, the absorber can be thinned while ensuring the absorption capacity. Therefore, the thickness of the absorbent article can be suppressed, and the wearing feeling can be further improved by the impression of thinness and the touch of the thin absorbent article.

[0175] The non-skin-side folded-back portion 911 of the first side piece 91 can be joined to the covering region R91 by means of a side joining portion. The side joining portion can be constituted by the non-skin-side joining portion 30 of the present embodiment. In the width direction W, the outer edge of the side joining portion can be located at a position closer to the inside than the outer edge 45E of the absorbent sheet 45. The outer edge of the side joining portion is located at a position closer to the inside in the width direction than the side fold line and the outer edge 45E of the absorbent sheet 45. Therefore, it does not overlap with the region where the first side piece 91 and the second side piece 92 are joined by the side joining portion, but overlaps with the region where the second side piece 92 is not fixed to the first side piece 91. Therefore, the outer edge of the absorbent sheet is easily deformed, and the discomfort when contacting the leg can be reduced.

[0176] The absorbent article of the third feature is configured to give the impression of being a thin absorbent article 1, and the maximum thickness of the absorbent body is preferably 3.0 mm or less, and preferably, it can be 1.5 mm or less. In addition, the maximum thickness of the absorbent article can be 3.0 mm or less, and preferably, it can be 2.5 mm or less. According to this structure, the thickness of the absorbent article can be suppressed, and the wearing feeling can be further improved by the impression of thinness and the touch of the thin absorbent article.

[0177] (6) The fourth feature of the absorbent article

[0178] Next, the fourth feature of the absorbent article will be described in detail. The absorbent article 1 of the fourth feature is configured to suppress the deformation of the outer edge 41E of the absorbent core 41, and the wearing feeling of the absorbent article 1 can be further improved. The absorbent article 1 of the fourth feature can be roughly classified into the tenth form to the thirteenth form. As a common structure of the tenth form and the thirteenth form, the absorbent article 1 has a longitudinal direction L, a width direction W, and a thickness direction T, a crotch region S3, a front side region S1, and a rear side region S2, an absorbent body 40, and a main body fixing portion 61. The absorbent body 40 of the fourth feature has an absorbent core 41. The absorbent core 41 is disposed across the center of the width direction W of the absorbent article 1 and is disposed opposite to the vaginal opening or the urinary opening in the crotch region S3, and can quickly absorb body fluids by the cellulose-based fibers contained in the absorbent core. In the absorbent article of the fourth feature, the absorbent body 40 may not have the "absorbent sheet" of the present invention. More specifically, the absorbent body 40 may have a so-called SAP sheet other than the "absorbent sheet" of the present invention, or may have only the absorbent core. In addition, in the absorbent article of the fourth feature, the absorbent body 40 may also have the "absorbent sheet" of the present invention.

[0179] In the absorbent article 1 of the tenth embodiment, at least a portion of the main body fixing portion 61 is arranged at a position outside the outer edge 41E of the absorbent core 41 in the width direction W in the crotch region S3. According to this structure, when the absorbent article 1 is worn on a wearing article S such as underwear, it is fixed to the wearing article S up to the region outside the outer edge 41E of the absorbent core 41 in the width direction W, and the outer portion of the absorbent article 1 can be prevented from standing up. Therefore, the deformation of the outer edge 41E of the absorbent core 41 and the situation where the outer edge 41E of the absorbent core 41 is pressed against each other can be prevented, and the discomfort when wearing can be prevented.

[0180] For the outer edge 41E of the absorbent core 41, the position in the width direction W in the crotch region S3 can be changed. The absorbent core 41 can be provided with a crotch narrowest position 41CN having the shortest length in the width direction W of the absorbent core 41 in the crotch region S3 and a crotch widest position 41CM having the longest length in the width direction W of the absorbent core 41 in the crotch region S3. Two of the four main body fixing portions 61 (the first main body fixing portion 611 and the second main body fixing portion 612) can be located at a position that is closer to the outside of the width direction W than the outer edge 41E of the absorbent core 41 within the entire area of ​​the crotch region S3. Two main body fixing portions 61 are arranged at a position that is closer to the outside of the width direction W than the widest position 41CM of the crotch, and four main body fixing portions 61 are arranged at a position that is closer to the outside of the width direction W than the narrowest position 41CN of the crotch. That is, the inner edge 61I of the main body fixing part 61 may be located outside in the width direction W relative to the outer edge 41E of the absorption core 41 at the narrowest position 41CN of the crotch.

[0181] In the absorbent article 1 of the 10th form, the maximum width of the absorbent core 41 in the crotch central area S33 is shorter than the maximum width of the absorbent core 41 in the crotch front area S31 and shorter than the maximum width of the absorbent core 41 in the crotch rear area S32. According to this structure, if the absorbent article 1 is clamped by the legs when wearing, the absorbent article 1 is pressed by the inner side of the thigh, and the crotch central area S33 is easily pressed to a position closer to the inside of the crotch front area S31 and the crotch rear area S32 in the width direction W. Since the maximum width of the absorbent core 41 is shorter in the crotch central area S33 and longer in the crotch front area S31 and the crotch rear area S32, the shape of the outer edge 41E of the absorbent core 41 is easy to follow the shape of the legs, which can reduce the discomfort when wearing. In this embodiment, the widest position 41CM of the crotch is configured in the crotch front area S31 and the crotch rear area S32, and is not configured in the crotch central area S33.

[0182] In the absorbent article 1 of the eleventh form, the main body fixing portions 61 extend in the front-back direction L and are arranged at intervals in the width direction W. The main body fixing portion 61 has at least a first main body fixing portion 611 and a second main body fixing portion 612. The second main body fixing portion 612 is located at a position outside in the width direction W subsequent to the first main body fixing portion 611. In the crotch region S3, at least a part of a first interval G611, which is the interval between the first main body fixing portion 611 and the second main body fixing portion 612, is arranged at a position outside in the width direction W with respect to the outer edge 41E of the absorbent core 41. The first interval G611 only needs to be arranged in a part of the crotch region S3, but preferably, it can be arranged in the entire region of the crotch region S3.

[0183] According to this structure, at least a part of the first main body fixing portion 611 and at least a part of the first interval G611 are arranged in the crotch region S3 at a position outside in the width direction W with respect to the outer edge 41E of the absorbent core 41. When the absorbent article 1 is worn on the wearing article S, it is fixed to the wearing article S up to the region outside in the width direction W with respect to the outer edge 41E of the absorbent core 41, and the situation where the outer portion of the absorbent article 1 stands up can be suppressed. Therefore, the deformation of the outer edge 41E of the absorbent core 41 and the situation where the outer edge 41E of the absorbent core 41 abuts can be suppressed, and the discomfort during wearing can be suppressed. If the absorbent article 1 is clamped by the legs during wearing, the absorbent article is pressed by the inner side of the thigh. At this time, the first interval G611 is arranged at a position outside in the width direction W with respect to the outer edge 41E of the absorbent core 41, and the first interval G611 functions as a buffer region. Therefore, the abutment of the inner side of the thigh against the outer edge 41E of the absorbent core 41 can be made gentle, and the discomfort during wearing can be reduced.

[0184] In addition, in the present embodiment, the first interval G611 and the second interval G612 are located at positions outside in the width direction W with respect to the outer edge 41E of the absorbent core throughout the entire region of the crotch region, and a part of the third interval G613 is located at a position outside in the width direction W with respect to the outer edge 41E of the absorbent core 41 in the crotch region S3. Since the plurality of intervals are arranged at intervals in the width direction W, a buffer region can be set in stages, and it is easier to obtain the effect of making the abutment of the inner side of the thigh against the outer edge 41E of the absorbent core 41 gentle.

[0185] In the absorbent article 1 of the twelfth embodiment, in the crotch region S3 and the front region S1, at least a part of the main body fixing portion 61 is disposed at a position outside the outer edge 41E of the absorbent core 41 in the width direction W. The pressing force and deformation in the crotch region S3 are transmitted from the crotch region S3 to the front region S1. At this time, since the main body fixing portion 61 is disposed at a position outside the outer edge 41E of the absorbent core 41 in the width direction W in the crotch region S3 and the front region S1, when the absorbent article 1 is worn on the wearing article S, it is fixed to the wearing article up to the region outside the outer edge 41E of the absorbent core 41 in the width direction W, and the situation where the outer portion of the absorbent article 1 stands up can be suppressed. Therefore, the deformation of the outer edge 41E of the absorbent core 41 and the situation where the outer edge 41E of the absorbent core 41 abuts can be suppressed, and the discomfort during wearing can be suppressed.

[0186] In the absorbent article 1 of the twelfth embodiment, at least a part of the front edge of the main body fixing portion 61 is disposed at a position outside the outer edge 41E of the absorbent core 41 in the width direction W in the front region S1. Since the front edge of the main body fixing portion 61 is disposed at a position outside the outer edge 41E of the absorbent core 41 in the width direction, the outer portion of the absorbent article 1 in the front region S1 is not likely to stand up, and the discomfort caused by the standing up of the outer portion of the absorbent article 1 in the front region S1 can also be reduced when a force is applied to the front region S1, such as when the leg moves.

[0187] In the present embodiment, the first main body fixing portion 611 and the second main body fixing portion 612 are located at positions outside the outer edge 41E of the absorbent core 41 in the width direction W within the entire regions of the front region S1 and the crotch region S3. The third main body fixing portion 613 and the fourth main body fixing portion 614 straddle the outer edge 41E of the absorbent core 41 in the front region S1 and the crotch region S3. In addition, the front edges of the first main body fixing portion 611 and the second main body fixing portion 612 are disposed at positions outside the outer edge 41E of the absorbent core 41 in the width direction W, and the front edges of the third main body fixing portion 613 and the fourth main body fixing portion 614 are disposed at positions inside the outer edge 41E of the absorbent core 41 in the width direction.

[0188] In the absorbent article 1 of the 13th embodiment, in the crotch region S3 and the rear side region S2, at least a part of the main body fixing portion 61 is disposed at a position outside the outer edge 41E of the absorbent core 41 in the width direction W. The pressing force and deformation in the crotch region S3 are transmitted from the crotch region S3 to the rear side region S2. At this time, since the main body fixing portion 61 is disposed at a position outside the outer edge 41E of the absorbent core 41 in the width direction W in the crotch region S3 and the rear side region S2, when the absorbent article 1 is worn on the wearing article S, it is fixed to the wearing article S up to the region outside the outer edge 41E of the absorbent core 41 in the width direction W, and the situation where the outer portion of the absorbent article 1 stands up can be suppressed. Therefore, the deformation of the outer edge of the absorbent core and the situation where the outer edge of the absorbent core abuts can be suppressed, and the discomfort during wearing can be suppressed.

[0189] In the absorbent article 1 of the 13th embodiment, at least a part of the rear end edge of the main body fixing portion 61 is disposed at a position outside the outer edge 41E of the absorbent core 41 in the width direction W in the rear side region S2. Since the rear end edge of the main body fixing portion is disposed at a position outside the outer edge of the absorbent core in the width direction, the outer portion of the absorbent article 1 in the rear side region S2 is not easily erected, and the discomfort caused by the erection of the outer portion of the absorbent article in the rear side region can also be reduced when a force is applied to the rear side region during hip movement or the like.

[0190] In the present embodiment, the first main body fixing portion 611 and the second main body fixing portion 612 are located at positions outside the outer edge 41E of the absorbent core 41 in the width direction W within the entire region of the rear side region S2 and the entire region of the crotch region S3. The third main body fixing portion 613 and the fourth main body fixing portion 614 straddle the outer edge 41E of the absorbent core 41 in the rear side region S2 and the crotch region S3. In addition, the rear end edges of all the main body fixing portions 61 are disposed at positions outside the outer edge of the absorbent core in the width direction.

[0191] The structural features of the above-described 10th to 13th embodiments have been described, but other structures may also be provided in each embodiment. For example, in the absorbent article 1 of the 10th embodiment, the structure of the 11th embodiment may also be provided, and the structures of other embodiments may be appropriately adopted. Next, the preferable structures that can be adopted in the 10th to 13th embodiments will be described. The following preferable structures can be adopted in any of the embodiments.

[0192] The main body fixing part 61 located on the outer side in the width direction W with respect to the outer edge 41E of the absorbent core 41 can be continuous across the front side area S1, the crotch area S3, and the rear side area S2. The state where the outer part of the absorbent article 1 stands up is suppressed within the entire range in the front-rear direction L of the absorbent article 1, and discomfort during wearing can be suppressed. In the present embodiment, the first main body fixing part 611 and the second main body fixing part 612 are continuous across the front side area S1, the crotch area S3, and the rear side area S2, and are located on the outer side in the width direction W with respect to the outer edge 41E of the absorbent core 41 within the entire range in the front-rear direction L of the absorbent article 1. The interval between the main body fixing parts located on the outer side in the width direction with respect to the outer edge of the absorbent core (for example, the first interval G611) can also be continuous across the front side area S1, the crotch area S3, and the rear side area S2. A buffer area is provided within the entire range in the front-rear direction of the absorbent article, and the contact with the legs is suppressed, so that discomfort during wearing can be suppressed.

[0193] A wing fixing part 62 can be arranged on the extension line extending outward in the width direction W from the narrowest crotch position 41CN of the absorbent core 41. The area fixed by the wing fixing part 62 corresponds to the crotch area of the wearing article S and is an area that is easily clamped by the legs. Since the narrowest crotch position 41CN of the absorbent core 41 is arranged in this area, the outer edge 41E of the absorbent core 41 can easily follow the shape of the inner side of the thigh, and discomfort during wearing can be reduced. In addition, even when the narrowest crotch position 41CN of the absorbent core 41 is pressed, since the wing fixing part 62 arranged on the extension line in its width direction is wound around the wearing article S, deformation of the absorbent core 41 at the narrowest crotch position 41CN can be suppressed, the shape of the absorbent core 41 can be maintained, and discomfort caused by the deformation of the absorbent core 41 can be suppressed.

[0194] The wing fixing part 62 of the present embodiment extends in the front-rear direction L and is arranged at intervals in the width direction W. The wing fixing part 62 of the present embodiment is arranged on the extension line extending in the width direction from the narrowest crotch position 41CN and is not arranged on the extension line extending in the width direction from the widest crotch position 41CM.

[0195] The narrowest position 41CN of the crotch can be disposed at a position rearward of the center in the front-rear direction L of the crotch region S3. When wearing the absorbent article with the center in the front-rear direction L of the crotch region S3 aligned with the center in the front-rear direction L of the crotch region of the wearing article, the vaginal opening is disposed opposite to a region forward of the center in the front-rear direction L of the crotch region S3. The narrowest position 41CN of the crotch is located at a position rearward of the center in the front-rear direction L of the crotch region S3, and the width of the absorbent core 41 in the region disposed opposite to the vaginal opening (the region forward of the center in the front-rear direction of the crotch region) is wider than the width of the narrowest position 41CN of the crotch, and can hold the body fluid discharged from the vaginal opening. By providing the narrowest position of the absorbent core in the crotch, while making the outer edge of the absorbent core follow the shape of the thigh, it is possible to suppress the leakage of body fluid in the crotch region, and the wearing feeling can be further improved. In addition, the narrowest position 41CN of the crotch can be disposed at a position rearward of the center in the front-rear direction L of the wing fixing portion 62.

[0196] The main body fixing portions 61 can be disposed on both sides in the width direction W across the center in the width direction W of the absorbent article 1. In the width direction W, the outer edge 41E of the absorbent core 41 at the narrowest position 41CN of the crotch can be disposed inward of the inner edge 61I of the main body fixing portion 61. When the absorbent article is clamped by the legs during wearing, the absorbent article is pressed by the inner sides of the thighs. At this time, the narrowest position 41CN of the crotch is located inward of the main body fixing portion 61 in the width direction W, and is not fixed to the wearing article S by the main body fixing portion 61, and functions as a buffer region. Therefore, the contact of the inner sides of the thighs with the outer edge 41E of the absorbent core 41 at the narrowest position 41CN of the crotch can be made gentle, and the discomfort during wearing can be reduced. In addition, by making the contact of the absorbent core 41 at the narrowest position 41CN of the crotch gentle, the deformation of the absorbent core 41 at the narrowest position 41CN can be suppressed, the shape of the absorbent core 41 can be maintained, and the discomfort caused by the deformation of the absorbent core can be suppressed.

[0197] In addition, within the crotch region S3, the main body fixing portions 61 can overlap the absorbent core 41 in the region extending forward from the narrowest position 41CN of the crotch and the region extending rearward from the narrowest position 41CN of the crotch, respectively. Therefore, even if the outer edge 41E of the absorbent core 41 at the narrowest position 41CN of the crotch is not fixed to the wearing article by the main body fixing portion 61, the absorbent core can be fixed at the front side and the rear side relative to the narrowest position 41CN of the crotch, and the deformation of the absorbent core at the narrowest position 41CN of the crotch can be suppressed.

[0198] Regarding the outer edge 41E of the absorbent core 41, the position in the width direction W in the front region S1 can vary. The absorbent core 41 can be provided with a front narrowest position 41FN having the shortest length in the width direction of the absorbent core in a region where the absorbent core narrows inward in the width direction in the front region S1, and a front widest position 41FM having the longest length in the width direction W of the absorbent core 41 in the front region S1. In addition, the front narrowest position 41FN can be located at a position outside the width direction compared to the crotch narrowest position 41CN. The front widest position 41FM can be located at a position outside the width direction compared to the crotch widest position 41CM. The front widest position 41FM can be the position of the maximum width of the absorbent core. The front widest position 41FM can be disposed at a position anterior to the front edge of the main body fixing portion 61. According to this structure, the force transmitted through the main body fixing portion 61 can be cut off at the front widest position 41FM, and it is easy to ensure the length in the width direction of the front end portion of the absorbent article. Given the influence of the pubis, the front end portion of the absorbent article is not easily pushed inward in the width direction by the legs. Therefore, by ensuring the length in the width direction of the front end portion of the absorbent body, the absorption capacity of the absorbent body can be ensured. In addition, since the front widest position 41FM is not fixed to the wearing article S, it is not easy to transmit force from the wearing article, and it is easy to ensure the length in the width direction of the front widest position 41FM, and the absorption capacity of the absorbent body can be ensured.

[0199] The front narrowest position 41FN can be separated from the boundary between the front region S1 and the crotch region S3 in the front-rear direction L. The force and deformation pressed in the crotch region S3 are transmitted from the crotch region S3 to the front region S1. At this time, the front narrowest position 41FN is separated from the boundary between the front region S1 and the crotch region S3, and it is not easy to transmit the force and deformation from the crotch region S3 side. Therefore, the deformation of the absorbent core 41 at the front narrowest position 41FN can be suppressed, the shape of the absorbent core can be maintained, and the discomfort caused by the deformation of the absorbent core can be suppressed. The distance between the front narrowest position 41FN and the boundary between the front region S1 and the crotch region S3 can be 5 mm or more, and preferably, it can be 10 mm or more.

[0200] The maximum width of the absorbent core 41 in the front outer region S11 can be longer than the maximum width of the absorbent core 41 in the front inner region S12. According to this structure, the force and deformation from the crotch region side are cut off in the front inner region S12 to suppress the deformation of the absorbent core, and the width of the absorbent core 41 in the front outer region S11 is ensured, and front leakage can be suppressed. In the present embodiment, the front narrowest position 41FN is disposed in the front inner region S12, and the front widest position 41FM is disposed in the front outer region S11.

[0201] The absorbent core 41 may also be disposed in the crotch region S3 and the front region S1 respectively, but preferably, it may be disposed across the crotch region S3 and the front region S1. In the region extending outwardly in both lateral directions of the front-back direction L from the boundary between the front region S1 and the crotch region S3, the outer edge 41E of the absorbent core 41 may be curved. The pressing force and deformation in the crotch region S3 are transmitted from the crotch region S3 to the front region S1. At this time, the absorbent core 41 is disposed across the crotch region S3 and the front region S1, and the deformation of the absorbent article is suppressed by the absorbent core 41, and the shape of the absorbent article is easily maintained. In addition, since the outer edge 41E of the absorbent core 41 is curved across the boundary between the crotch region S3 and the front region S1, the deformation and force are not directly transmitted, but are transmitted in an evasive manner. Therefore, the deformation of the absorbent article 1 is suppressed, the shape of the absorbent article is easily maintained, and the discomfort caused by the deformation of the absorbent article can be suppressed.

[0202] The absorbent core may also be disposed in the crotch region S3 and the rear region S2 respectively, but preferably, it may be disposed in the crotch region S3 and the rear region S2. A low unit area weight portion L41 is provided in the absorbent core 41 in the rear region S2, and the low unit area weight portion L41 is disposed across the two outer edges in the width direction of the absorbent core 41, and the unit area weight of the cellulosic fibers of the absorbent core 41 is lower than that of the surrounding area. According to this embodiment, the low unit area weight portion L41 extending in the width direction across the two outer edges in the width direction W of the absorbent core 41 can cut off the force and deformation on the crotch region S3 side, and the shape of the rear end portion of the absorbent core 41 is easily maintained. In addition, the low unit area weight portion L41 may be a region where fewer cellulosic fibers are disposed than the surrounding area, or a region where no cellulosic fibers are disposed (unit area weight is 0 g / m 3 ) region.

[0203] The absorbent core 41 of the present embodiment has a first absorbent core 411 disposed across the front region S1, the crotch region S3, and the rear region S2, and a second absorbent core 412 disposed in the rear region S2 and separated from the first absorbent core 411 in the front-back direction L. A low unit area weight portion L41 is provided between the first absorbent core 411 and the second absorbent core 412. The first absorbent core 411 is separated from the front edge of the absorbent body 40 and is located at a position behind the front edge of the absorbent body 40. The second absorbent core 412 is separated from the rear edge of the absorbent body 40 and is located at a position in front of the rear edge of the absorbent body 40. The outer edge of the first absorbent core 411 and the outer edge of the second absorbent core 412 are both separated from the outer edge of the absorbent body and are located at positions inside the absorbent body in the width direction.

[0204] The maximum width of the absorbent core 41 in the posterior outer region S21 may be shorter than the maximum width of the absorbent core 41 in the posterior inner region S22. According to this structure, by shortening the maximum width of the absorbent core 41 in the posterior outer region S21, the absorbent core 41 can easily conform to the groove between the left and right buttocks, and posterior leakage can be suppressed. On the other hand, since the maximum width of the absorbent core 41 in the posterior inner region S22 is longer, the width of the absorbent core 41 for the perineum is ensured, and leakage near the perineum can be suppressed.

[0205] In the present embodiment, a part of the first absorbent core 411, the low unit area weight portion L41, and a part of the second absorbent core 412 are arranged in the posterior inner region S22, and a part of the second absorbent core 412 is arranged in the posterior outer region S21. The rearmost widest position 41RM, which has the longest length in the width direction W of the absorbent core 41 in the posterior outer region S21, is provided in the posterior outer region S21. Posterior leakage can be suppressed by the absorbent core at the rearmost widest position 41RM. The rearmost widest position 41RM is provided on the second absorbent core 412. The position 412N, which has the shortest length in the width direction W of the absorbent core in the region where the absorbent core in the second absorbent core 412 narrows inward in the width direction, is provided in the posterior outer region S21. At the position 412N, which has the shortest length in the width direction W of the second absorbent core 412, the absorbent core can easily conform to the groove between the left and right buttocks, and posterior leakage can be further suppressed. The rearmost widest position 41RM may be arranged at a position posterior to the rear end edge of the main body fixing portion 61. According to this structure, the force transmitted through the main body fixing portion 61 can be intercepted by the rearmost widest position 41RM, and it is easy to ensure the length in the width direction of the rear end portion of the absorbent article. In addition, since the rearmost widest position 41RM is not fixed to the wearing article S, it is easy to transmit force from the wearing article, and it is easy to ensure the length in the width direction of the rearmost widest position 41RM.

[0206] The outer edge 41E of the absorbent core 41 may be located at a position outside the outer edge of the post-treatment member 68 in the width direction. Since the absorbent core 41 is arranged at a position outside the outer edge of the post-treatment member 68 in the width direction, even when the legs are closed or in a posture where the distance between the two legs is short, the post-treatment member 68 is not likely to contact the wearer, and discomfort caused by the post-treatment member can be suppressed. Preferably, the outer edge 41E of the absorbent core 41 may be arranged at a position outside the outer edge of the post-treatment member 68 in the width direction throughout the entire region in the front-rear direction of the outer edge of the post-treatment member 68.

[0207] The main body pressing part 81 can be provided on the skin-side sheet 11, the absorbent core 41, and the core non-skin-side sheet disposed at a position on the non-skin side of the absorbent core 41. Here, the core non-skin-side sheet only needs to be a sheet located at a position on the non-skin side T2 of the absorbent core 41, and it can be either the non-skin-side sheet 20 or the sheet 48 of the first absorbent sheet 451. In a form where multiple core non-skin-side sheets are arranged, the main body pressing part 81 only needs to be provided on at least any one of the non-skin-side sheets. According to this structure, since the absorbent core 41 is sandwiched between the skin-side sheet 11 and the core non-skin-side sheet, and the skin-side sheet, the core non-skin-side sheet, and the absorbent core are joined by the main body pressing part 81, the deformation of the absorbent core can be suppressed. By maintaining the shape of the absorbent core, the discomfort caused by the deformation of the absorbent core can be suppressed.

[0208] The main body pressing part 81 can have an outer pressing part 811 disposed at a position outside the outer edge 41E of the absorbent core 41 in the width direction W. According to this structure, when a force is applied from the outside to the inside in the width direction W, the force is applied to the outer pressing part 811, and it deforms with the outer pressing part 811 as a base point or the force is dispersed in the plane direction by means of the outer pressing part 811, so that the force applied to the outer edge 41E of the absorbent core 41 can be reduced. It is easy to maintain the shape of the absorbent core 41, and the discomfort caused by the deformation of the absorbent core 41 can be reduced. The outer pressing part 811 can be provided in the crotch region S3, the front region S1, and the rear region S2. According to this structure, the deformation of the absorbent core 41 is suppressed by overcoming the force received from the outside in the width direction W throughout the entire region in the front-rear direction L of the absorbent core 41, and it is easy to maintain the shape of the absorbent core 41.

[0209] The main body pressing part 81 can have an inner pressing part 812 disposed at a position outside the outer edge 41E of the absorbent core 41 in the width direction W. The inner pressing part 812 is disposed overlapping the absorbent core 41. The deformation of the absorbent core 41 is suppressed by the inner pressing part 812, it is easy to maintain the shape of the absorbent core 41, and the discomfort caused by the deformation of the absorbent core can be reduced. In addition, the outer pressing part 811 and the inner pressing part 812 can be connected. That is, the main body pressing part 81 can be disposed across the outer edge 41E of the absorbent core 41. It is easy to maintain the shape of the absorbent core 41 by the main body pressing part 81, and the discomfort caused by the deformation of the absorbent core can be reduced.

[0210] (7) The fifth feature of the absorbent article

[0211] Next, the fifth feature of the absorbent article will be described in detail. The absorbent article 1 of the fifth feature is configured to suppress the deterioration of the wearing feeling when absorbing body fluids and ensure a space for the swelling of the superabsorbent polymer 44, so that the absorption capacity can be effectively utilized. The absorber 40 of the absorbent article 1 of the fifth feature has at least a first absorbent sheet 451 and a second absorbent sheet 452. The first absorbent sheet 451 has a first compression portion 471 formed by compressing a plurality of sheets 48 inward in a direction facing each other from the outer surface in the thickness direction T of the first absorbent sheet 451. Here, the outer surface in the thickness direction T of the first absorbent sheet 451 is both the non-skin side surface and the skin side surface of the first absorbent sheet. In other words, the first compression portion 471 is formed by compressing a plurality of sheets 48 in a direction facing each other between the non-skin side surface and the skin side surface of the first absorbent sheet 451. The second absorbent sheet 452 has a second compression portion 472 formed by compressing a plurality of sheets 48 inward in a direction facing each other from the outer surface in the thickness direction of the second absorbent sheet. Here, the outer surface in the thickness direction T of the second absorbent sheet 452 is both the non-skin side surface and the skin side surface of the second absorbent sheet. In other words, the second compression portion 472 is formed by compressing a plurality of sheets 48 in a direction facing each other between the non-skin side surface and the skin side surface of the second absorbent sheet 452.

[0212] The first compression portion 471 and the second compression portion 472 are portions where the sheets are pressed against each other in the facing direction, and the distance between the sheets 48 is shorter than that in the region where no compression portion is formed. The first compression portion 471 and the second compression portion 472 are concepts including the sheet pressing portion 46. The sheet pressing portion 46 is where the absorbent sheet is pressed in the thickness direction. More specifically, the sheets 48 abut against each other, and the fibers constituting the sheets 48 are fused and joined to each other. In contrast, the first compression portion 471 and the second compression portion 472 include not only the structure where the sheets 48 abut against each other but also the structure where the sheets 48 do not abut against each other. In addition, as long as the thickness of the sheets 48 is thinned by the compression of the sheets, the first compression portion 471 and the second compression portion 472 may not have the fibers constituting the sheets 48 fused. As Figure 9 shown, the first compression portion 471 of the present embodiment is constituted by a first sheet pressing portion 461, and the second compression portion 472 is constituted by a second sheet pressing portion 462.

[0213] Figure 7 is a plan view of the absorbent sheet 45. Figure 7 (a) is a plan view of the first absorbent sheet 451, Figure 7(b) is a plan view of the second absorbent sheet 452. The first absorbent sheet 451 and the second absorbent sheet 452 may both be disposed across the center 40CW in the width direction of the absorbent body 40. A plurality of first compression portions 471 and second compression portions 472 are disposed at intervals in the front-rear direction L and the width direction W in the plan view of the absorbent sheet 45. A plurality of first compression portions 471 and second compression portions 472 are respectively disposed on both sides of the center 40CW in the width direction of the absorbent body 40. The first compression portions 471 and the second compression portions 472 only need to be disposed at intervals, and their shapes may be dot-like or other patterns (such as star patterns, heart patterns). The first compression portions 471 and the second compression portions 472 may be arranged in a staggered manner as in this embodiment, may be arranged at intervals along the front-rear direction L, or may be arranged at intervals along the width direction W.

[0214] As Figure 9 shown, in the crotch region S3, there is a non-overlapping region NR where the first compression portion 471 and the second compression portion 472 do not overlap in the thickness direction T. The non-overlapping region NR includes a first non-overlapping region where the region where the first compression portion 471 is provided in the first absorbent sheet 451 overlaps with the region where the second compression portion 472 is not provided in the second absorbent sheet 452, a second non-overlapping region where the region where the first compression portion 471 is not provided in the first absorbent sheet 451 overlaps with the region where the second compression portion 472 is provided in the second absorbent sheet 452, and a third non-overlapping region where the region where the first compression portion 471 is not provided in the first absorbent sheet 451 overlaps with the region where the second compression portion 472 is not provided in the second absorbent sheet 452. That is, the non-overlapping region NR is a region other than the portion where the first compression portion 471 and the second compression portion 472 overlap. In the absorbent article of the fifth feature, as long as at least any one of the first non-overlapping region to the third non-overlapping region is provided in the crotch region S3, a region other than the non-overlapping region NR (the region where the first compression portion 471 and the second compression portion 472 overlap) may be provided locally. Preferably, the area of the non-overlapping region NR in the crotch region S3 may be smaller than the area of the region other than the non-overlapping region NR in the crotch region S3.

[0215] In the region where the first compression part 471 and the second compression part 472 overlap, there may be a local increase in stiffness, and unintentional deformation or discomfort may occur with this part as the base point. However, by providing the non-overlapping region NR, the situation of local increase in stiffness is suppressed, unintentional deformation with the part having a higher stiffness as the base point is suppressed, and discomfort caused by the part having a higher stiffness can be suppressed. In addition, a plurality of the first compression parts 471 and the second compression parts 472 are arranged at intervals in the front-rear direction L and the width direction W in the plan view of the absorbent sheet 45. Even when the first compression part 471 and the second compression part 472 overlap, the overlapping regions are arranged at intervals, and the region where the superabsorbent polymer is arranged is not divided and arranged as in the conventional form having a sealing part. Therefore, the situation where the region where the superabsorbent polymer 44 swells is difficult to bend is not likely to occur, the deterioration of the followability is suppressed, and the wearing feeling can be improved. And since a plurality of deformation base points formed by the first compression part 471 and the second compression part 472 are arranged at intervals in the plan view, it is easy to deform softly using this deformation base point, the followability to the body is improved, and the deterioration of the wearing feeling can be suppressed when absorbing body fluids.

[0216] In addition, in the non-overlapping region NR, since at least one of the first compression part 471 and the second compression part 472 is not arranged in the thickness direction T, it is easy to ensure the swelling space in the thickness direction T, and the absorption capacity can be effectively utilized. And since the first compression part 471 and the second compression part 472 are arranged at intervals in the front-rear direction L and the width direction W, the parts where the sheets approach each other by using the first compression part 471 and the second compression part 472 do not linearly extend from one end to the other end of the absorbent sheet 45. Therefore, the superabsorbent polymer 44 is easy to expand within the overall range in the plan view of the absorbent sheet 45, and the absorption capacity can be effectively utilized.

[0217] The first compression part 471 and the second compression part 472 may be constituted by the sheet pressing part 46. According to this structure, since the sheets 48 are joined to each other by the pressing part, compared with the structure in which the sheets are joined to each other by heat sealing, HMA, etc., the joining of the sheets 48 by using the sheet pressing part 46 is easy to open when the superabsorbent polymer 44 swells, the swelling space of the superabsorbent polymer 44 is ensured, and the absorption capacity can be effectively utilized.

[0218] The first non-overlapping region, the second non-overlapping region, and the third non-overlapping region can all be provided in the non-overlapping region NR. In the first non-overlapping region, the superabsorbent polymer 44 of the second absorbent sheet 452 is liable to swell, and is liable to expand toward the skin side T1 when absorbing body fluid. In the second non-overlapping region, the superabsorbent polymer 44 of the first absorbent sheet 451 is liable to swell, and is liable to expand toward the non-skin side T2 when absorbing body fluid. In the first non-overlapping region and the second non-overlapping region, the first absorbent sheet 451 and the second absorbent sheet 452 are liable to expand in opposite directions in the thickness direction T, and no interference occurs between the regions, making it easy to ensure the swelling regions. The third non-overlapping region is liable to expand both toward the skin side T1 and toward the non-skin side T2 when absorbing body fluid, making it even easier to ensure the absorption capacity. By providing the first non-overlapping region, the second non-overlapping region, and the third non-overlapping region, the superabsorbent polymer 44 is even more liable to swell, and the absorption capacity can be further effectively utilized.

[0219] The shortest distance between the first compression portions 471 and the shortest distance between the second compression portions 472 in the plan view of the absorbent sheet 45 can be longer than the average value of the diameters of the superabsorbent polymer 44 in a state where it has been immersed in physiological saline for 60 minutes, drained for 15 minutes, and then dehydrated using a centrifuge separator. The regions between the first compression portions 471 and the regions between the second compression portions 472 are regions not pressed by the compression portions, where the inter-fiber voids are relatively large and the superabsorbent polymer 44 is liable to swell. Since the length of this liable-to-swell region in the plan view is longer than the average diameter of the superabsorbent polymer 44 after swelling, the superabsorbent polymer 44 is liable to swell, and it is even easier to effectively utilize the absorption capacity.

[0220] Here, the shortest distance between the first compression parts 471 and the shortest distance between the second compression parts 472 are the average values obtained by randomly measuring the intervals between them in the plan view of the compression parts at 10 positions. In addition, the state after being immersed in physiological saline for 60 minutes, drained for 15 minutes, and then dehydrated using a centrifugal separator is a state that simulates the water retention state of the body fluid (urine) of the superabsorbent polymer 44, which is the "when water is retained" in the present invention. The average value of the diameter of the superabsorbent polymer in the state after being immersed in physiological saline for 60 minutes, drained for 15 minutes, and then dehydrated using a centrifugal separator can be measured by the following method. First, under the conditions of temperature: 20°C, relative humidity: 60%, pressure (standard atmospheric pressure): 1 atm (101.325 kPa) (for example, in a laboratory maintained at these conditions), take out the superabsorbent polymer to be measured from the absorbent article (for example, 0.1 g). Store the superabsorbent polymer in a predetermined container and shake it upside down more than 10 times to evenly mix the particles of the superabsorbent polymer. Accurately measure 1.00 g of the mixed superabsorbent polymer using a spatula or the like and put it into another prepared nylon mesh bag. The nylon mesh bag can be, for example, a bag formed by overlapping two 200 mm × 200 mm square nylon meshes and heat-sealing at positions 5 mm from the ends of the nylon mesh for three sides of the square to form a bag shape with only one side of the square open. As the nylon mesh, for example, a 250-mesh nylon mesh (N-No. 250HD) manufactured by NBC Industries can be used. After putting the superabsorbent polymer into the nylon mesh bag, heat-seal the opening of the nylon mesh bag so that the superabsorbent polymer is sealed without overflowing from the nylon mesh bag. Then, add 1000 ml of physiological saline to a beaker and immerse the nylon bag (superabsorbent polymer) so that one side of the nylon bag containing the superabsorbent polymer contacts the bottom of the beaker. Then, in order to prevent the superabsorbent polymer from closely adhering to the nylon mesh as much as possible, fix one side of the upper part of the nylon bag to the edge of the beaker using a clothes peg or the like. Leave it in this state for 60 minutes. The physiological saline used is obtained as follows: Place a 3-liter beaker on an electronic balance and zero it, then add ion-exchanged water to 27.0 g of sodium chloride (reagent grade 1) to make it 3000.0 g, and stir with a stirring rod until the dissolution of sodium chloride can be visually observed. After leaving it for 60 minutes, lift the nylon bag containing the superabsorbent polymer out of the beaker and leave it for 15 minutes in a state where the center upper part of the nylon bag is clamped with a clothes peg (for example, at a position 5 mm from the upper end of the nylon bag and 50 mm from both side ends) and suspended in the air for draining. Next, use a centrifugal separator (HI30) manufactured by Kokusan Co., Ltd., Japan to dehydrate the drained nylon bag (superabsorbent polymer). For example, dehydrate it at a rotational speed of 850 rpm (150 G) for 90 seconds. Then, also use a microscope to measure the diameter of the superabsorbent polymer.The average value is the average of measuring 30 diameters. Five high-absorbency polymers that are sampled from the same product are taken, and the average value measured five times is taken as the final value.

[0221] Preferably, the shortest distance between the first compression portions 471 and the shortest distance between the second compression portions 472 in the plan view of the absorbent sheet 45 can be longer than the average value of the diameters of the high-absorbency polymer 44 in a state where it is immersed in physiological saline for 60 minutes and drained for 15 minutes (a state where dehydration is not performed using a centrifugal separator).

[0222] The maximum size of the first compression portion 471 and the maximum size of the second compression portion 472 in the plan view of the absorbent sheet can be longer than the average value of the diameters of the high-absorbency polymer in a state where it is immersed in physiological saline for 60 minutes, drained for 15 minutes, and then dehydrated using a centrifugal separator. The maximum size of the first compression portion 471 and the maximum size of the second compression portion 472 are the maximum sizes in the plan view of each compression portion. Measurements are made at five locations of the sample, and the average value is taken. According to this method, the maximum size of the first compression portion 471 and the maximum size of the second compression portion 472 are smaller than the average diameter when the high-absorbency polymer 44 retains water, suppressing the influence caused by the first compression portion 471 and the second compression portion 472 when the high-absorbency polymer 44 retains water, and the high-absorbency polymer 44 is likely to expand within the overall range in the plan view of the absorbent sheet 45.

[0223] A sheet joint portion may be formed in the absorbent article 1. The sheet joint portion is formed by compressing and joining the first absorbent sheet 451 and the second absorbent sheet 452 in the thickness direction T, and is arranged with an interval in the front-rear direction L and the width direction W in the plan view of the absorbent sheet 45. Either only the first absorbent sheet 451 and the second absorbent sheet 452 may be compressed and joined, or other constituent members (such as the skin-side sheet 11) other than the first absorbent sheet 451 and the second absorbent sheet 452 may also be compressed to indirectly join the first absorbent sheet 451 and the second absorbent sheet 452. The sheet joint portion of the present embodiment is constituted by a pressing constituent portion 82.

[0224] In the plan view of the absorbent sheet 45, the maximum dimension of the sheet joint portion (the pressing formation portion 82) may be larger than the maximum dimensions of the first compression portion 471 and the second compression portion 472. According to this structure, since the maximum dimension of the sheet joint portion is relatively large, it is easy to maintain the joint state of the first absorbent sheet 451 and the second absorbent sheet 452, suppress the dislocation of the absorbent sheets 45 from each other, and ensure the non-overlapping region NR. In addition, since the maximum dimensions of the first compression portion 471 and the second compression portion 472 are small, the influence caused by the first compression portion 471 and the second compression portion 472 during water retention of the superabsorbent polymer 44 is suppressed, and the superabsorbent polymer 44 is easy to expand within the overall range in the plan view of the absorbent sheet 45.

[0225] In the width direction W, the outer edge 41E of the absorbent core 41 may be located at a position closer to the inside than the outer edge 45E of the absorbent sheet 45. According to this structure, since the absorbent core 41 does not overlap with the outer portion of the absorbent sheet 45, the outer portion of the absorbent sheet 45 is easy to expand when absorbing body fluids, and the absorption capacity can be effectively utilized. Preferably, the outer edge 41E of the absorbent core 41 may be located at a position closer to the inside in the width direction W than the outer edge 451E of the first absorbent sheet 451 and at a position closer to the inside in the width direction W than the outer edge 452E of the second absorbent sheet 452. The outer portions of the first absorbent sheet 451 and the second absorbent sheet 452 are both easy to expand in the thickness direction, and the absorption capacity can be further effectively utilized.

[0226] In the width direction, the outer edge 451E of the first absorbent sheet 451 and the outer edge 452E of the second absorbent sheet 452 may be offset. According to this structure, since the outer edge 451E of the first absorbent sheet 451 and the outer edge 452E of the second absorbent sheet 452 are offset, two absorbent sheets 45 are not arranged in the outer portion of the absorbent sheet 45, but one absorbent sheet is arranged. The thickness of the outer portion of the absorbent sheet is suppressed by arranging one absorbent sheet, and the stiffness can be reduced. The outer portion of the absorbent sheet is easy to bend, which helps to reduce discomfort, and this portion is easy to expand when absorbing body fluids, and the absorption capacity can be effectively utilized.

[0227] The absorbent core 41 may be arranged across the center 40CW in the width direction of the absorbent article 1. The first absorbent sheet 451 may be arranged at a position closer to the non-skin side T2 than the absorbent core 41. According to this structure, the absorbent core 41 is arranged across the center in the width direction W of the absorbent article 1 at a position closer to the skin side T1 than the first absorbent sheet 451, and it is easy to absorb the body fluids discharged from the excretory opening. The first absorbent sheet 451 is arranged at a position closer to the non-skin side T2 than the absorbent core 41, and the body fluids guided to the absorbent core 41 are further inhaled toward the non-skin side T2. Even in the case of repeated discharge of body fluids, it is easy to use the absorbent core 41 to retain the body fluids.

[0228] The second absorbent sheet 452 may be disposed at a position closer to the skin side T1 than the absorbent core 41. According to this structure, when the second absorbent sheet 452 disposed at a position closer to the skin side T1 than the absorbent core 41 absorbs body fluid, the superabsorbent polymer 44 swells, thereby suppressing rewetting caused by the movement of the temporarily inhaled body fluid toward the skin side T1. In addition, when the body fluid spreading in the planar direction is absorbed on the surface side of the absorbent article 1, the transfer and leakage of the body fluid can be suppressed.

[0229] The absorbent sheet 45 may contain a superabsorbent polymer 44 and cellulosic fibers. By the presence of the cellulosic fibers, the situation where the superabsorbent polymer 44 inadvertently flows is suppressed, and the superabsorbent polymer 44 can be disposed within the entire range in the plan view of the absorbent sheet 45. The unit area weight of the cellulosic fibers of the absorbent sheet 45 may be less than the unit area weight of the superabsorbent polymer 44 of the absorbent sheet 45. Since the unit area weight of the cellulosic fibers is relatively low and the unit area weight of the superabsorbent polymer 44 is relatively high, the thickness of the entire absorbent sheet 45 can be suppressed while ensuring the absorption capacity. By suppressing the thickness of the entire absorbent sheet 45, the followability of the absorbent sheet 45 to the body is improved, and the discomfort during wearing can be suppressed.

[0230] The liquid spreading property in the planar direction of the sheet 48 constituting the first absorbent sheet 451 may be higher than the liquid spreading property in the planar direction of the sheet 48 constituting the second absorbent sheet 452. According to this structure, the liquid spreading property in the planar direction of the second absorbent sheet 452 located on the skin side T1 is relatively low, and the body fluid is not excessively diffused in the planar direction in the second absorbent sheet 452, and the blockage caused by the swelling of the superabsorbent polymer 44 in the second absorbent sheet 452 can be suppressed. On the other hand, the liquid spreading property in the planar direction of the first absorbent sheet 451 located on the non-skin side T2 is relatively high, the body fluid is inhaled toward the non-skin side T2, and the inhaled body fluid is diffused over a wider range, improving the liquid spreading property in the thickness direction T and the planar direction, and the absorption capacity can be effectively utilized.

[0231] In addition, the liquid spreading property can be compared according to the CRIEM water absorbency. The longitudinal direction of the test piece (the direction having a length of 200 mm or more) when measuring the CRIEM water absorbency is extracted along the front-rear direction L of the sheet to be measured, the CRIEM water absorbency is measured, and the one with the longer length is judged to have a higher liquid spreading property. The CRIEM water absorbency can be measured by the method according to JIS P8141:2004.

[0232] As described above, the present invention has been described in detail using the above-described embodiments. However, it will be apparent 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 in modified and changed forms without departing from the gist and scope of the present invention defined by the claims. Therefore, the description in this specification is for illustrative purposes only and does not have any restrictive meaning for the present invention. The above-described first feature to fifth feature can be appropriately combined. For example, the absorbent article may also have the first feature and the second feature to fifth feature at the same time.

Claims

1. An absorbent article comprising: Mutually orthogonal front-to-back direction, width direction and thickness direction; A crotch region disposed at the crotch of a wearer, a front region located at a front side of the crotch region, and a rear region located at a rear side of the crotch region; as well as The absorbent body is arranged at least in the crotch region, wherein The absorbent body has an absorbent sheet covering the skin side and the non-skin side of the superabsorbent polymer with a sheet in the thickness direction. The absorbent sheet includes a first absorbent sheet and a second absorbent sheet disposed closer to the skin than the first absorbent sheet. The first absorbent sheet has a first compressed portion, wherein the sheets covering the skin side and the non-skin side of the superabsorbent polymer are compressed in mutually facing directions from the outer surface in the thickness direction of the first absorbent sheet toward the inner side. The second absorbent sheet has a second compressed portion, wherein the sheets covering the skin side and the non-skin side of the superabsorbent polymer are compressed from the outer surface of the second absorbent sheet in the thickness direction toward the inner side in the direction facing each other. The first compressed portion and the second compressed portion are arranged in plurality at intervals in the front-rear direction and the width direction when the absorbent sheet is viewed in plan. A non-overlapping region in which the first compressed portion and the second compressed portion do not overlap in the thickness direction is provided at least in the crotch region.

2. The absorbent article according to claim 1, wherein In the non-overlapping area there are: a first non-overlapping region where a region of the first absorbent sheet where the first compressed portion is provided overlaps a region of the second absorbent sheet where the second compressed portion is not provided; a second non-overlapping region in which a region of the first absorbent sheet where the first compressed portion is not provided overlaps a region of the second absorbent sheet where the second compressed portion is provided; as well as A third non-overlapping region is formed in which a region of the first absorbent sheet where the first compressed portion is not provided overlaps a region of the second absorbent sheet where the second compressed portion is not provided.

3. The absorbent article according to claim 1 or 2, wherein: The shortest distances between the first compressed parts and the shortest distances between the second compressed parts in the plan view of the absorbent sheet are longer than an average value of the diameter of the superabsorbent polymer after being immersed in saline for 60 minutes, drained for 15 minutes, and then dehydrated by a centrifuge.

4. The absorbent article according to claim 1 or 2, wherein: The maximum dimensions of the first compressed portion and the second compressed portion in a plan view of the absorbent sheet are longer than an average value of the diameter of the superabsorbent polymer after being immersed in saline for 60 minutes, drained for 15 minutes, and then dehydrated by a centrifuge.

5. The absorbent article according to claim 1 or 2, wherein: The absorbent article is formed with a sheet joint portion, the sheet joint portion compressing and joining the first absorbent sheet and the second absorbent sheet in the thickness direction, and arranged at intervals in the front-back direction and the width direction when the absorbent sheets are viewed from above, When the absorbent sheet is viewed in plan, the maximum dimension of the sheet joining portion is larger than the maximum dimension of the first compressed portion and the maximum dimension of the second compressed portion.

6. The absorbent article according to claim 1 or 2, wherein: The absorbent body comprises an absorbent core having at least cellulosic fibers laminated thereon, In the width direction, the outer edge of the absorbent core is located inside of the outer edge of the absorbent sheet.

7. The absorbent article according to claim 6, wherein: The absorbent core is arranged across the center of the absorbent article in the width direction. The first absorbent sheet is disposed on the non-skin side relative to the absorbent core.

8. The absorbent article according to claim 6, wherein: The second absorbent sheet is disposed on the skin side relative to the absorbent core.

9. The absorbent article according to claim 1 or 2, wherein: In the width direction, the outer edge of the first absorbent sheet and the outer edge of the second absorbent sheet are offset from each other.

10. The absorbent article according to claim 1 or 2, wherein: The cellulosic fibers and the superabsorbent polymer are disposed between the sheets of the absorbent sheet. The weight per unit area of ​​the cellulosic fibers of the absorbent sheet is smaller than the weight per unit area of ​​the superabsorbent polymer of the absorbent sheet.

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