Absorbent articles

Abstract

To provide an absorbent article capable of suppressing leakage of body fluid in a flap, which allows a user to feel a sense of security for the leakage easily.SOLUTION: An absorbent article (1) includes: an absorbent core (31); a pair of flaps (40) that extend to the outside in a width direction relative to the absorbent core; a fiber sheet (50) having fiber disposed in the pair of flaps; a back sheet (20) disposed on a non-skin side of the absorbent core and the fiber sheet; and a top sheet (10) disposed on a skin side of the absorbent core and the fiber sheet. At least part of the fiber sheet overlaps with the absorbent core. The absorbent article includes a mark part (80) disposed in a region overlapping with the fiber sheet. At least part of the mark part is disposed in the flap.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to an absorbent article having a flap. [Background technology]

[0002] Patent Document 1 discloses an absorbent article in which a fiber sheet having fibers is arranged on a flap. The absorbent article of Patent Document 1 has a fiber sheet arranged across a pair of wings as flaps, and a main absorbent body arranged between the wings. Patent Document 2 has a first absorbent body arranged over the entire longitudinal direction of the napkin, and a second absorbent body (fiber sheet) arranged on the wings as flaps, protruding outward in the width direction from the first absorbent body in the crotch region arranged in the crotch region of the wearer. Since the fiber sheet is arranged on the flap, bodily fluids are drawn between the fibers to temporarily hold the bodily fluids, and leakage of the bodily fluids at the flap can be suppressed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2000-189458 A [Patent Document 2] JP 2008-161251 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, conventional absorbent articles have the following problems. Even if a fibrous sheet or the like that exhibits the function of suppressing leakage of bodily fluids is arranged on the flap, the user may not be aware of the presence of the fibrous sheet or the like, and therefore the effect of suppressing leakage may not be expected. Even if the user is aware of the presence of a fibrous sheet or the like that exhibits the function of suppressing leakage of bodily fluids, the user may not be able to grasp its extent, and therefore may not be able to feel sufficiently secure about leakage.

[0005] The present invention has been made in consideration of the above problems, and provides an absorbent article that suppresses leakage of bodily fluids at the flaps and allows the user to easily feel secure about leakage. [Means for solving the problem]

[0006] An absorbent article according to one embodiment includes an absorbent core, a pair of flaps extending outward in the width direction from the absorbent core, a fiber sheet having fibers arranged on the pair of flaps, a back sheet arranged on the non-skin side of the absorbent core and the fiber sheet, and a top sheet arranged on the skin side of the absorbent core and the fiber sheet. At least a portion of the fiber sheet overlaps the absorbent core. The absorbent article has a marking portion arranged in the area overlapping with the fiber sheet. At least a portion of the marking portion is arranged on the flap. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a plan view of an absorbent article according to a first embodiment, as viewed from the skin side. [Diagram 2] FIG. 2 is a plan view of the absorbent article according to the first embodiment as viewed from the non-skin side. [Diagram 3] FIG. 3 is a cross-sectional view taken along the line AA shown in FIG. [Figure 4] FIG. 4 is an enlarged view of part B shown in FIG. [Diagram 5] FIG. 5 is a plan view of an absorbent article according to a second embodiment, as viewed from the skin side. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] (1) Overview of the embodiment At least the following points will become apparent from the description of this specification and the accompanying drawings. The absorbent article according to the first aspect includes an absorbent core, a pair of flaps extending outward in the width direction from the absorbent core, a fiber sheet having fibers arranged on the pair of flaps, a back sheet arranged on the non-skin side of the absorbent core and the fiber sheet, and a top sheet arranged on the skin side of the absorbent core and the fiber sheet. At least a part of the fiber sheet overlaps the absorbent core. The absorbent article has a marking part arranged in the area overlapping with the fiber sheet. At least a part of the marking part is arranged on the flap. The fiber sheet has fibers, and can draw bodily fluids between the fibers and temporarily hold the bodily fluids, thereby suppressing leakage of bodily fluids at the flap. In addition, the fiber sheet is arranged overlapping the absorbent core, and by visually checking the fiber sheet, the user can recognize that the area that can be absorbed by the absorbent core is also arranged on the flap, and the effect of suppressing leakage at the flap can be expected. In addition, the marking part is arranged in the area overlapping with the fiber sheet, and the user can easily grasp the position and presence of the fiber sheet in the flap by visually checking the marking part. The user can understand the extent to which leakage can be suppressed by the fiber sheet in the flap, and can feel reassured about the risk of leakage.

[0009] According to a preferred embodiment, the invention according to embodiment 2 may have the following features in the invention according to embodiment 1. The marker portion has a similar portion along the outer edge of the fiber sheet. According to this embodiment, the user can easily grasp the outer edge of the area where the fiber sheet is arranged by visually checking the marker portion. In addition, because the marker portion has a portion along the outer edge of the fiber sheet, the range of the area where the fiber sheet is arranged can be made to appear larger, which can further increase the sense of security about leakage.

[0010] According to a preferred embodiment, the invention according to embodiment 3 may have the following features in the invention according to embodiment 1 or embodiment 2. The outer edge of the fiber sheet has a similar portion shaped to follow the outer edge of the flap. According to this embodiment, at least a portion of the outer edge of the fiber sheet follows the outer edge of the flap, so that the fiber sheet appears to extend outward in the width direction together with the flap. In addition, the marker portion is arranged along the outer edge of the fiber sheet, so that the outer edge of the fiber sheet is more noticeable. The user can broadly recognize the area where the fiber sheet is arranged, and can feel more secure about leakage.

[0011] According to a preferred embodiment, the invention according to embodiment 4 may have the following features in the invention according to any one of embodiments 1 to 3. The outer edge of the fiber sheet has a convex portion that bulges outward in the width direction. According to this embodiment, at least a part of the outer edge of the fiber sheet has a convex portion that bulges outward in the width direction, and the fiber sheet has a shape that spreads outward in the width direction. The user can more widely recognize the area where the fiber sheet is arranged, and can feel more secure about leakage.

[0012] According to a preferred embodiment, the invention according to embodiment 5 may have the following features in the invention according to embodiment 1 to embodiment 4. The back sheet extends outward in the width direction in the flap more than the fiber sheet. The color difference ΔE between the area where the fiber sheet and the absorbent core overlap and the area where the fiber sheet is arranged and the absorbent core is not arranged is 3.0 or less. The color difference ΔE between the area where the fiber sheet is arranged and the absorbent core is not arranged and the area where the back sheet is arranged and the fiber sheet is not arranged is greater than 3.0. Since the color difference between the area where only the fiber sheet is arranged and the area where the fiber sheet and the absorbent core overlap is 3.0 or less, the user can recognize the two areas as the same area, and can recognize the area where only the fiber sheet is arranged as an area where an absorption effect can be obtained, and can obtain a sense of security against leakage. In addition, the color difference between the area where the fiber sheet is arranged and the area where the back sheet is arranged without the fiber sheet is greater than 3.0. The user can distinguish between the two regions and more clearly see the extent to which the fiber sheet can prevent leakage of bodily fluids, thereby providing a greater sense of security regarding leakage.

[0013] According to a preferred embodiment, the invention according to embodiment 6 may have the following features in the invention according to any one of embodiments 1 to 5. The inner edge of the marker portion in the width direction is located outward in the width direction from the inner edge of the flap. According to this embodiment, the entire area of ​​the marker portion is located outward in the width direction from the inner edge of the flap, so that the marker portion makes the width direction range of the flap stand out, making it easier for the user to grasp the entire width direction range of the flap and to grasp that the flap is expanding in the width direction. This allows the user to feel more secure about leakage.

[0014] According to a preferred embodiment, the invention according to embodiment 7 may have the following features in the invention according to any one of embodiments 1 to 6. The outer edge of the marking portion is located inside the outer edge of the fiber sheet in the width direction and outside the outer edge of the absorbent core in the width direction. On a virtual line passing through the maximum width of the fiber sheet and extending in the width direction, the distance between the outer edge of the fiber sheet and the outer edge of the marking portion is shorter than the distance between the inner edge of the marking portion and the outer edge of the absorbent core. According to this embodiment, the marking portion is disposed between the absorbent core and the outer edge of the fiber sheet, biased toward the outer edge of the fiber sheet. Therefore, the marking portion can indicate that the fiber sheet exists up to a position away from the absorbent core on the outer side in the width direction. The user can widely recognize the area where the fiber sheet is disposed, and can feel more secure about leakage.

[0015] According to a preferred embodiment, the invention according to embodiment 8 may have the following features in the invention according to embodiment 1 to embodiment 7. The top sheet is arranged on the outside in the width direction of the absorbent core, and has a side sheet arranged on the flap. The marking portion is a compressed portion obtained by compressing the side sheet and the fibrous sheet. According to this embodiment, the marking portion is formed by a compressed portion obtained by compressing the side sheet and the fibrous sheet, so that the user can be assured that the compressed portion can suppress the diffusion of bodily fluids and improve the drawing ability. In addition, in conventional absorbent articles, the compressed portion is arranged in an area overlapping with the absorbent core. The side sheet is arranged on the outside in the width direction of the absorbent core, and the user can recognize that the water-absorbing element is also arranged on the flap by visually checking the marking portion (compressed portion) arranged on the flap, and can feel more secure about leakage.

[0016] According to a preferred embodiment, the invention according to embodiment 9 may have the following features in the invention according to any one of embodiments 1 to 8. The top sheet is disposed on the outside of the absorbent core in the width direction, and has a side sheet disposed on the flap. The outer edge of the marking portion is disposed inside the outer edge of the fiber sheet in the width direction, and outside the inner edge of the side sheet in the width direction. On a virtual line passing through the maximum width of the fiber sheet and extending in the width direction, the distance between the outer edge of the fiber sheet and the outer edge of the marking portion is shorter than the distance between the inner edge of the marking portion and the inner edge of the side sheet. According to this embodiment, the marking portion is disposed between the inner edge of the side sheet and the outer edge of the fiber sheet, biased toward the outer edge of the fiber sheet. Therefore, the marking portion can indicate that the fiber sheet exists from the inner edge of the side sheet to a position far outward in the width direction. The user can widely recognize the area where the fiber sheet is disposed, and can feel more secure about leakage.

[0017] According to a preferred embodiment, the invention according to embodiment 10 may have the following features in the invention according to any one of embodiments 1 to 9. The top sheet has a center sheet covering the center of the absorbent core in the width direction, and a side sheet arranged on the flap and outboard of the center sheet in the width direction. The outer edge of the marking portion is arranged inside the outer edge of the fiber sheet in the width direction and outboard of the outer edge of the center sheet in the width direction. On a virtual line passing through the maximum width of the fiber sheet and extending in the width direction, the distance between the outer edge of the fiber sheet and the outer edge of the marking portion is shorter than the distance between the inner edge of the marking portion and the outer edge of the center sheet. According to this embodiment, the marking portion is arranged between the outer edge of the center sheet and the outer edge of the fiber sheet, biased toward the outer edge of the fiber sheet. Therefore, the marking portion can indicate that the fiber sheet exists from the outer edge of the center sheet to a position far outward in the width direction. The user can widely recognize the area where the fiber sheet is arranged, and can feel more secure about leakage.

[0018] According to a preferred embodiment, the invention according to embodiment 11 may have the following features in the invention according to any one of embodiments 1 to 10. The top sheet has a center sheet covering the center in the width direction of the absorbent core, and a side sheet arranged on the flap and outboard of the center sheet in the width direction. The absorbent article has a sheet joint portion that joins the center sheet and the side sheet. The outer edge of the mark portion is arranged inside the outer edge of the fiber sheet in the width direction and outside the outer edge of the sheet joint portion in the width direction. On a virtual line that passes through the maximum width of the fiber sheet and extends in the width direction, the distance between the outer edge of the fiber sheet and the outer edge of the mark portion is shorter than the distance between the inner edge of the mark portion and the outer edge of the sheet joint portion. According to this embodiment, the mark portion is arranged between the outer edge of the sheet joint portion and the outer edge of the fiber sheet, biased toward the outer edge side of the fiber sheet. Therefore, the mark portion can indicate that the fiber sheet exists from the outer edge of the sheet joint portion to a position away from the outer side in the width direction. The user can more clearly see the area in which the fiber sheet is arranged, and can feel more secure about the risk of leakage.

[0019] According to a preferred embodiment, the invention according to embodiment 12 may have the following features in the invention according to any one of embodiments 1 to 11. The outer edge of the fiber sheet is located widthwise inward of the outer edge of the flap and widthwise outward of the outer edge of the mark portion. The distance between the outer edge of the fiber sheet and the outer edge of the flap is longer than the distance between the outer edge of the fiber sheet and the outer edge of the mark portion. According to this embodiment, since the distance from the outer edge of the fiber sheet to the outer edge of the flap is relatively long, not only can the fiber sheet exert an effect of suppressing leakage, but even if bodily fluids diffuse beyond the fiber sheet, the fiber sheet can also exert an effect of suppressing leakage, allowing the user to feel more secure about leakage.

[0020] According to a preferred embodiment, the invention according to embodiment 13 may have the following features in the invention according to any one of embodiments 1 to 12. The marker portion is composed of at least one of a compressed portion obtained by compressing the top sheet, a colored portion provided on the fiber sheet, and a colored portion provided on the top sheet. A marker portion made of a compressed portion can temporarily retain bodily fluids and suppress the diffusion of bodily fluids. In addition, a marker portion made of a colored portion can enhance the design of the marker portion and increase the freedom of positioning the marker portion.

[0021] According to a preferred embodiment, the invention according to embodiment 14 may have the following features in the invention according to any one of embodiments 1 to 13. The marker portion is composed of an assembly of a plurality of the compressed portions arranged at intervals. According to this embodiment, compared to a configuration of continuous compressed portions, the area between the compressed portions becomes the deformation base point, and the flap is more likely to flexibly deform. Also, compared to a configuration of continuous compressed portions, the diffusion rate of bodily fluids is reduced in the area between the compressed portions, and leakage can be suppressed.

[0022] According to a preferred embodiment, the invention according to embodiment 15 may have the following features in the invention according to any one of embodiments 1 to 14. A main body compressed portion is provided, which is constituted by an assembly of compressed portions which compress the absorbent core and the top sheet. The shape of the compressed portion of the marker portion is the same or similar to the shape of the compressed portion of the main body compressed portion. According to this embodiment, the marker portion and the main body compressed portion can be made to appear integrated. The user can recognize the area where the absorbent core is arranged and the area where the fiber sheet is arranged as being integrated, and a visual effect can be achieved in which the area where the fiber sheet is arranged exhibits the same absorption effect as the area where the absorbent core is arranged.

[0023] According to a preferred embodiment, the invention according to embodiment 16 may have the following features in the invention according to any one of embodiments 1 to 15. The flap is a wing folded back to the non-skin side of the wearing article. The outer edge of the absorbent core is disposed inside the inner edge of the wing in the width direction. When worn, the wing is folded back to the non-skin side of the wearing article from the inner edge of the wing as a base point and used. Therefore, the fold of the wing is likely to come into contact with the thigh of the wearer. Since the absorbent core is disposed inside the inner edge of the wing in the width direction, the fold of the wing is not too hard due to the presence of the absorbent core, and it is possible to suppress the fold of the wing from coming into contact with the thigh. In addition, in a configuration in which the absorbent core is disposed in the wing, the absorbent core folded back to the non-skin side of the wearing article holds bodily fluids, and the bodily fluids may adhere to the legs of the wearer. However, since the absorbent core is not disposed in the wing, it is possible to suppress the unintentional adhesion of bodily fluids at the part folded back to the non-skin side of the wearing article.

[0024] (2) Packaging for absorbent articles according to the first embodiment The absorbent article 1 according to the first embodiment will be described below with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and that the ratios of the dimensions are different from the actual ones. Therefore, the specific dimensions should be determined with reference to the following description. In addition, the drawings may include parts with different dimensional relationships and ratios. 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 may be an article that is attached to the inside of a worn article such as underwear and used. The absorbent article 1 of the embodiment is a daytime sanitary napkin. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and that the ratios of the dimensions may be different from the actual ones. Therefore, the specific dimensions should be determined with reference to the following description. In addition, the drawings may include parts with different dimensional relationships and ratios.

[0025] FIG. 1 is a plan view of the absorbent article 1 as viewed from the skin side T1. FIG. 2 is a plan view of the absorbent article 1 as viewed from the non-skin side T2. FIG. 3 is a cross-sectional view taken along the line AA shown in FIG. 1. Here, the "skin side" corresponds to the side facing the wearer's skin during use. The "non-skin side" corresponds to the side facing away from the wearer's skin during use. The absorbent article 1 has a front-rear direction L, a width direction W, and a thickness direction T, which are perpendicular to each other. In the front-rear direction L of the absorbent article 1, the side that contacts the lower abdomen of the user is referred to as the "front side", and the side that contacts the buttocks of the user is referred to as the "rear side". The absorbent article 1 has a crotch region S2, a front region S1, and a rear region S3. The crotch region S2 is a region that is disposed opposite the wearer's excretory opening, for example, the vaginal opening. When the absorbent article 1 is attached to a worn article, the crotch region S2 is disposed under the crotch of the worn article and between the wearer's legs. The front region S1 is located forward of the crotch region S2. The front edge of the front region S1 defines the front edge of the absorbent article 1. The rear region S3 is located rearward of the crotch region S2. The rear edge of the rear region S3 defines the rear edge of the absorbent article 1.

[0026] The absorbent article 1 has at least an absorbent core 31, a top sheet 10, and a back sheet 20. The absorbent article 1 has a vertically elongated shape. The top sheet 10 is a sheet that is disposed on the skin side T1 of the absorbent core 31 and a fiber sheet 50 described later, and contacts the wearer. The top sheet 10 may have a center sheet 11 that covers the center of the absorbent core 31 in the width direction W, and a hydrophobic side sheet 12 that is disposed outside the center sheet 11 in the width direction W and at least disposed on a flap 40 described later. The side sheet 12 may have a portion that is disposed outside the center sheet 11 in the width direction W, and may overlap the outer portion of the center sheet 11. The side sheet 12 has a portion that is disposed outside the absorbent core 31 in the width direction W, and in this embodiment, is separated from the absorbent core 31 in the width direction W. The center sheet 11 is made of any sheet-like material having a structure that allows liquid to pass through, such as a nonwoven fabric, a woven fabric, a perforated plastic sheet, a mesh sheet, etc. The side sheet 12 may be hydrophobic, and the resin component and fineness of the constituent fibers may be the same as those of the center sheet 11, and may not contain a hydrophilic oil agent. The center sheet 11 and the side sheet 12 may be joined by a sheet joint 16. The sheet joint 16 may be formed by a compressed part obtained by compressing the center sheet 11 and the side sheet 12, and may be configured to be visible from the skin side T1 of the absorbent article 1. The sheet joint 16 may be formed by an assembly of dot-shaped compressed parts, and more specifically, may be formed by an assembly of dot-shaped compressed parts arranged in a diamond shape, and the diamond shapes are arranged in the front-rear direction L. The sheet joint 16 may extend in the front-rear direction L. In a modified example, the top sheet 10 may not have a side sheet 12, and the center sheet 11 may cover the entire skin side of the absorbent article.

[0027] The back sheet 20 is disposed on the non-skin side T2 of the absorbent core 31 and the fiber sheet 50, and is a sheet that contacts the worn article. The back sheet 20 is a liquid-impermeable sheet. The back sheet 20 may be a polyethylene sheet, a laminated nonwoven fabric mainly made of polypropylene or the like, a breathable resin film, or a sheet in which a breathable resin film is bonded to a nonwoven fabric such as spunbond or spunlace.

[0028] The absorbent core 31 constitutes the absorbent body 30. The absorbent core 31 may be made of an absorbent material that absorbs liquid. The absorbent material constituting the absorbent core 31 can be formed, for example, of hydrophilic fibers, pulp, and superabsorbent polymer (SAP). The absorbent body 30 may have a core wrap sheet 32 ​​that covers the absorbent core 31. The core wrap sheet 32 ​​can be made of, for example, nonwoven fabric or tissue. As a variant, the absorbent core 31 may not be covered by the core wrap sheet 32. The core wrap sheet 32 ​​may constitute the "fiber sheet" of the present invention. More specifically, the core wrap sheet 32 ​​may have a first core wrap sheet 321 arranged on the skin side T1 of the absorbent core 31 and a second core wrap sheet 322 arranged on the non-skin side T2 of the absorbent core 31, and at least one of the first core wrap sheet 321 and the second core wrap sheet 322 may constitute the fiber sheet 50. In this embodiment, the first core wrap sheet 321 constitutes the fiber sheet 50. The fiber sheet 50 will be described later. The absorbent article 1 may be provided with a main body compression section 36 that at least compresses the absorbent core 31 and the top sheet 10. The main body compression section 36 may be configured by a collection of compression sections, more specifically, by a collection of point-like compression sections. The length in the width direction W of the first core wrap sheet 321 and the length in the width direction W of the second core wrap sheet 322 may be different. Since the length in the width direction of one of the first core wrap sheet 321 and the second core wrap sheet 322 is short and the one core wrap sheet does not straddle the wing fold FL, the rigidity of the wing fold FL is reduced, making it easier to fold the wings. In addition, the diffusion of bodily fluids in the width direction (toward the wing) can be suppressed. Furthermore, the absorbent body 30 may have only one of the first core wrap sheet 321 and the second core wrap sheet 322, and not the other. One of the first core wrap sheet 321 and the second core wrap sheet 322 may constitute the fiber sheet of the present application.

[0029] The absorbent article 1 has a pair of flaps 40. The flaps 40 extend outward in the width direction W beyond the absorbent core 31. The flaps 40 may have at least one of a wing 41 arranged in the crotch region S2 and arranged on the non-skin side T2 of the worn article when worn, and a hip flap 42 (see FIG. 5) arranged in the rear region S3. The absorbent article 1 according to the first embodiment has a pair of wings 41 as the flaps 40, but does not have a hip flap 42. The wings 41 are folded back from the wing fold FL toward the non-skin side T2 of the worn article when worn. At least the top sheet 10 and the back sheet 20 may be arranged on the wings 41. The wing fold FL is defined by the inner edge (root of the wing) 41I of the wings 41, and is a line connecting the front part and the rear part of the two parts recessed inward in the width direction W. The wing 41 may be folded toward the top sheet 10 with the wing crease FL as a base point before use, and folded back toward the non-skin side T2 of the wearing article when used. The outer edge 31E of the absorbent core 31 may be located inside the wing crease FL in the width direction W. That is, the absorbent core 31 may be disposed without straddling the wing crease FL. In addition, in a configuration in which the wing 41 and the hip flap 42 are adjacent to each other in the front-rear direction L, the rear inner edge (recess) 41I of the wing constitutes the front inner edge 42I of the hip flap 42. In a configuration in which the wing 41 and the hip flap 42 are not adjacent to each other in the front-rear direction L, the inner edge (base) 42I of the hip flap 42 is the base of the bulge of the hip flap 42 and is the base of the bulge. In addition, the front inner edge (base) 42I of the hip flap 42 is the base of the bulge of the hip flap 42 and is the base of the bulge. In addition, the inner edge 42I that constitutes the rear end edge of the hip flap 42 may be the point where an extension line that passes through the outer edge of the absorbent core and extends to the rear intersects with the outer edge of the absorbent article, or it may be the rearmost point among the points where the outer edge of the absorbent article is recessed inward, as shown in Figure 5.

[0030] The wing 41 may include a reinforcing sheet 15 disposed between the top sheet 10 and the back sheet 20. The reinforcing sheet 15 may be disposed between the absorbent body 30 and the back sheet 20, and may be disposed on the non-skin side T2 of the fiber sheet 50. The reinforcing sheet 15 may extend continuously from the front end edge to the rear end edge of the wing 41. The outer edge 15E of the reinforcing sheet 15 may be located inside the outer edge 41E of the wing 41 in the width direction W, and may be located inside the outer edge of the fiber sheet 50 in the width direction W. The inner edge 15I of the reinforcing sheet 15 may be located outside the wing fold FL in the width direction W, may be located outside the outer edge 31E of the absorbent core 31 in the width direction W, and may be located outside the inner edge 12I of the side sheet 12 in the width direction W. The wing 41 may include an area where the reinforcing sheet 15 is disposed and an area where the reinforcing sheet 15 is not disposed. In the present embodiment, the area where the reinforcing sheet 15 is arranged is sandwiched between areas where the reinforcing sheet 15 is not arranged in the width direction W. In a modified example, the reinforcing sheet 15 may be arranged at the wing fold FL. According to this modified example, the stiffness of the wing fold FL is increased by the reinforcing sheet 15, and the wing 41 can be easily folded stably. From the viewpoint of folding the wing 41, it is preferable that one of the first core wrap sheet 321 and the second core wrap sheet 322 overlaps with the reinforcing sheet 15, and the other of the first core wrap sheet 321 and the second core wrap sheet 322 does not overlap with the reinforcing sheet 15 (is arranged only on the inside in the width direction from the reinforcing sheet 15). Compared with a configuration in which both the first core wrap sheet 321 and the second core wrap sheet 322 overlap with the reinforcing sheet 15, the discomfort caused by the increased stiffness can be reduced. In addition, since the stacking state of the sheets in the wing 41 changes, a stiffness difference occurs at the boundary between the sheets, making it easier to fold the wing 41.

[0031] In the present invention, the outer portion is a portion that occupies a certain range in the width direction W including the outer edge in the width direction W, and the outer edge is the outer edge in the width direction W. The outer edge of a component that occupies a certain range in the front-rear direction is an edge that connects points located on the outside in the width direction of the component over the entire component. For example, the outer edge of the mark portion is an edge that connects points located on the outside in the width direction of the mark portion 80 over the entire mark portion. The inner portion in the present invention is a portion that occupies a certain range in the width direction W including the inner edge in the width direction W, and the inner edge is the inner edge in the width direction W. The inner edge of a component that occupies a certain range in the front-rear direction is an edge that connects points located on the inside in the width direction of the component over the entire component. In the present invention, the front end and rear end are portions that occupy a certain range in the front-rear direction L including edges in the front-rear direction L, and the front end edge and rear end edge are edges in the front-rear direction L. The outer end includes a front end and a rear end, and the outer edge includes a front edge and a rear edge. The inner side is a side that includes the inner edge and extends along the front-to-rear direction L. The outer side is a side that includes the outer edge and extends along the front-to-rear direction L. In this specification, the term "along the front-to-rear direction L" means a direction having an angle of less than 45° with respect to the front-to-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.

[0032] As shown in FIG. 2 and other figures, the absorbent article 1 has an adhesive portion for fastening the absorbent article 1 to a wearing article such as underwear. The adhesive portion is provided on the non-skin side T2 of the back sheet 20, and is a region provided with fastening means for fastening the absorbent article 1 to a wearing article such as underwear. The adhesive portion has a main body adhesive portion 61 for fastening at least a region overlapping with the absorbent core 31 to the wearing article. The main body adhesive portion 61 is provided in a region overlapping with the absorbent core 31 in the thickness direction T of the absorbent article 1. The main body adhesive portion 61 of this embodiment extends in the front-rear direction L and is provided in a plurality of portions at intervals in the width direction W. In a modified example, the main body adhesive portion 61 may extend in the width direction W and be provided in a plurality of portions at intervals in the front-rear direction L. The adhesive portion may have wing adhesive portions 62 for fastening the wings 41 to the wearing article. The wing adhesive portion 62 is attached to the non-skin side of the wing 41, and is attached to the non-skin side of the worn article when the wing 41 is folded back to the non-skin side T2 of the worn article during wearing. Therefore, the wing adhesive portion 62 is disposed outside the wing fold FL in the width direction W when the wing 41 is in the unfolded state (as shown in Figs. 1 and 2). The adhesive portion may be covered with a packaging sheet or release sheet (not shown) before use.

[0033] The absorbent article of the present embodiment is configured to suppress leakage of bodily fluids at the flaps 40 and to make it easy for the user to feel secure about leakage. Next, a detailed description will be given of a configuration for suppressing leakage of bodily fluids at the flaps 40 and to make it easy for the user to feel secure about leakage. The absorbent article 1 has a fiber sheet 50 arranged on a pair of flaps 40. The fiber sheet 50 is a sheet having fibers, and examples of the fiber sheet 50 include nonwoven fabric and tissue. The fiber sheet 50 may have hydrophilic fibers, may have fibers other than hydrophilic fibers, or may be a sheet with a hydrophilic oil agent attached to the fiber surface. At least a part of the fiber sheet 50 overlaps the absorbent core 31. The fiber sheet 50 may be arranged on at least a part of the flap 40. According to this embodiment, the fiber sheet 50 has fibers, and can draw and temporarily hold bodily fluids between the fibers, thereby suppressing leakage of bodily fluids at the wings 41 as the flap 40. In addition, when the fibrous sheet 50 has a hydrophilic oil applied to its surface, the oil can hold the liquid between the fibers, preventing a small amount of body fluid from leaking out. In addition, the fibrous sheet 50 is arranged overlapping the absorbent core 31, and the user can recognize by visually checking the fibrous sheet 50 that the area that can be absorbed by the absorbent core 31 is also arranged in the flap 40, and the effect of suppressing leakage from the flap 40 can be expected. The fibrous sheet 50 may cover the entire absorbent core 31 in the width direction W and extend outward in the width direction W beyond the absorbent core 31. Alternatively, the fibrous sheets 50 may be arranged at intervals in the width direction W, and each fibrous sheet 50 may be arranged to cover the outer portion of each flap 40 and the absorbent core 31. At least a part of the fibrous sheet 50 may be arranged between the top sheet 10 and the absorbent core 31, or between the back sheet 20 and the absorbent core 31. The fibrous sheet 50 of this embodiment is constituted by a first core wrap sheet 321. However, in an alternative embodiment, the fibrous sheet 50 may be constituted by a second core wrap sheet 322, or may not be constituted by a core wrap sheet 32 ​​but by a second sheet arranged between the top sheet 10 and the absorbent body 30.In this embodiment, in an area more inward in the width direction W than the inner edge 12I of the side sheet 12, the fiber sheet 50 is disposed closer to the non-skin side T2 than the center sheet 11. In an area where the side sheet 12 covers the skin side T1 of the center sheet 11, the fiber sheet 50 is disposed closer to the non-skin side T2 than the side sheet 12 and the center sheet 11. In an area more inward in the width direction W than the outer edge 11E of the center sheet 11, the fiber sheet 50 is disposed closer to the non-skin side T2 than the side sheet 12.

[0034] The absorbent article 1 has a mark portion 80 arranged in an area overlapping with the fiber sheet 50. The mark portion 80 may have a design that is visible from the skin side T1 of the absorbent article 1. In the present embodiment, the visible mark portion 80 is a mark portion that can be recognized by the naked eye. Specifically, for example, the mark portion 80 may be visible when viewed by a subject with good eyesight (1.0 or higher) in both eyes at a distance of about 30 to 50 cm in a room (approximately 500 to 750 lx (lux)) brightly illuminated with daylight white (approximate color temperature 4600 to 5400 K (Kelvin)). At least a part of the mark portion 80 is arranged on the flap 40. The mark portion 80 is arranged in an area overlapping with the fiber sheet 50, and the user can easily grasp the position and presence of the fiber sheet 50 on the flap 40 by visually recognizing the mark portion 80. The user can grasp the extent to which leakage can be prevented by the fiber sheet 50 in the flap 40, and can feel reassured about the risk of leakage.

[0035] As shown in FIG. 5, in a configuration having both hip flaps 42 and wings 41, the marker portion 80 may be disposed on both the wings 41 and the hip flaps 42, or on only one of them. The marker portion 80 may be disposed over the entirety of the wing 41 in the front-to-rear direction L, or may be disposed in a partial region of the wing 41 in the front-to-rear direction L, or may be disposed over the entirety of the hip flap 42 in the front-to-rear direction L, or may be disposed in a partial region of the hip flap 42 in the front-to-rear direction L. Preferably, the marker portion 80 may be disposed across the center 40CL of the flap 40 in the front-to-rear direction L (hereinafter referred to as the flap front-to-rear center). The flap front-to-rear center 40CL is the center 41CL of the wing 41 in the front-to-rear direction L of the wing 41, and is the center 42CL of the hip flap 42 in the front-to-rear direction L of the hip flap 42. Alternatively, the marking portion 80 may be disposed on a straight line extending in the width direction W from the outermost edge 40MW that bulges outward most in the width direction W in the flap 40. In the wing 41, the outermost edge 40MW is the outer edge 41MW located most outward in the width direction in the wing 41, and in the hip flap 42, the outermost edge 42MW located most outward in the width direction in the hip flap 42. A user may perform a fitting operation by visually checking or grasping the wing front-rear center 41CL or the outermost edge 40MW. By providing the marking portion 80 in this portion, the user can more easily recognize the marking portion 80. Hereinafter, a common configuration between the marking portion 80 of the wing 41 and the marking portion of the hip flap 42 will be described as the marking portion 80 of the flap 40.

[0036] As shown in FIG. 4, the outer edge 80E of the mark portion 80 and the inner edge 80I of the mark portion 80 may extend in the front-rear direction L. The outer edge 80E of the mark portion 80 may be spaced apart from the outer edge 40E (41E and 42E) of the flap 40, located inside the outer edge 40E of the flap 40, and located outside the inner edge 40I (41I and 42I) of the flap 40 in the width direction W. The inner edge 80I of the mark portion 80 may be spaced apart from the inner edge 40I of the flap 40, and located outside the inner edge 40I of the flap 40 in the width direction W. According to this configuration, since the entire area of ​​the mark portion 80 is located outside the inner edge 40I of the flap 40 in the width direction W, it is easy to grasp the entire area of ​​the flap 40 in the width direction W by the mark portion 80, and it is easy to grasp that the flap spreads in the width direction W. Therefore, the user can feel more secure about leakage. The marker portion 80 may be spaced apart from the outer edge 31E of the absorbent core 31 and disposed in a region not overlapping with the absorbent core 31. The marker portion 80 may be spaced apart from the inner edge 12I of the side sheet 12 in the width direction W and disposed outboard of the inner edge 12I of the side sheet 12 in the width direction W. The marker portion 80 may be spaced apart from the center sheet 11 in the width direction W and disposed outboard of the outer edge 11E of the center sheet 11 in the width direction W. The marker portion 80 may be spaced apart from the sheet joint portion 16 in the width direction W and disposed outboard of the sheet joint portion 16 in the width direction W.

[0037] The outermost edge 80MW located on the outermost side of the marker portion 80 in the width direction may be located inside the flap width center 40CW (41CW and 42CW) which is the center of the flap 40 in the width direction W. The flap width center 40CW is the center in the width direction W between the inner edge 40I of the flap 40 and the outermost edge 40MW (41MW and 42MW) of the flap 40. In a modified example, the outermost edge 80MW may be located outside the flap width center 40CW in the width direction W. According to the modified example, the user can easily recognize the outer edge 40E (41M and 42M) of the flap 40 by the outermost edge 80MW of the marker portion 80, and can easily recognize that the flap 40 has a shape that spreads outward in the width direction W. The innermost edge 80IM located on the innermost side of the marker portion 80 in the width direction may be located inside the flap width center 40CW in the width direction W. In a modified example, the marker portion 80 may straddle the flap width center 40CW, or the innermost edge 80IM may be located outside the flap width center 40CW (41CW and 42CW) in the width direction W, and the entire marker portion 80 may be located outside the flap width center 40CW (41CW and 42CW) in the width direction W. The length W80 of the marker portion 80 in the width direction W may be 20% or more of the length in the width direction W of the region in the flap 40 in which the fiber sheet 50 is arranged, and may be 50% or less of the length in the width direction W of the region in the flap 40 in which the fiber sheet 50 is arranged. The inner edge 80I of the marker portion 80 may be located inside the inner edge 62I of the wing adhesive portion 62 in the width direction W, and the marker portion 80 may straddle the inner edge 62I of the wing adhesive portion 62. The outer edge 80E of the marker portion 80 may be located more inward in the width direction W than the outer edge 62E of the wing adhesive portion 62.

[0038] The outer edge of the marker portion 80 in the front-rear direction L may be disposed inside the outer edge of the flap 40 in the front-rear direction L. Specifically, the front edge 80F of the marker portion 80 disposed on the wing 41 may be disposed rearward of the front edge of the wing 41, and the rear edge 80R of the marker portion 80 disposed on the wing 41 may be disposed forward of the rear edge of the wing 41. Similarly, the front edge of the marker portion 80 disposed on the hip flap 42 may be disposed rearward of the front edge of the hip flap 42, and the rear edge of the marker portion 80 disposed on the hip flap 42 may be disposed forward of the rear edge of the hip flap 42. The length of the marker portion 80 in the front-rear direction L of the wing 41 may be shorter than the length of the wing 41 in the front-rear direction L, and may be 50% or more of the length of the wing 41 in the front-rear direction L, and may be 80% or less of the length of the wing 41 in the front-rear direction L. The length in the front-to-back direction L of the marker portion 80 on the hip flap 42 may be shorter than the length in the front-to-back direction L of the hip flap 42, may be 50% or more of the length in the front-to-back direction L of the hip flap 42, and may be 80% or less of the length in the front-to-back direction L of the hip flap 42.

[0039] The mark portion 80 may be spaced apart from the outer edge 50E of the fiber sheet 50 and may be disposed inside the outer edge 50E of the fiber sheet 50. The mark portion 80 may have a portion that overlaps with the fiber sheet 50, and may have a portion that does not overlap with the fiber sheet 50. Thus, the mark portion 80 may straddle the outer edge 50E of the fiber sheet 50, or may be disposed outside the outer edge 50E of the fiber sheet 50 in the width direction W. In this embodiment, the mark portion 80 is disposed only in the region where the fiber sheet 50 is disposed. The length of the mark portion 80 in the front-rear direction L may be 50% or more of the length of the fiber sheet 50 in the front-rear direction L in the wing 41. It is preferable that the mark portion 80 is close to the outer edge 50E of the fiber sheet 50 so that the outer edge 50E of the fiber sheet 50 is made conspicuous by the mark portion 80. Specifically, the distance between the mark portion 80 and the outer edge of the fiber sheet 50 may be 1 mm or more and 15 mm or less, and preferably 2 mm or more and 10 mm or less. If the distance between the mark portion 80 and the outer edge 50E of the fiber sheet 50 is less than 1 mm, the mark portion 80 may overlap the outer edge 50E of the fiber sheet 50 due to manufacturing errors or the like. However, if the distance between the mark portion 80 and the outer edge 50E of the fiber sheet 50 is 1 mm or more, the mark portion 80 and the outer edge 50E of the fiber sheet 50 are arranged at a distance from each other, and each can be made conspicuous. If the distance between the mark portion 80 and the outer edge 50E of the fiber sheet 50 is longer than 15 mm, the range in which leakage can be suppressed is perceived to be narrower than the range in which the fiber sheet 50 is arranged. However, since the distance between the marker portion 80 and the outer edge 50E of the fiber sheet 50 is 15 mm or less, the user can easily recognize the outer edge of the fiber sheet 50 and can easily recognize the range of the fiber sheet 50 as the range in which leakage can be suppressed.

[0040] At least a portion of the wing adhesive portion 62 may overlap the fiber sheet 50 or may overlap the marker portion 80. By overlapping the wing adhesive portion 62 and the fiber sheet 50, the rigidity of the region where the wing 41 is attached (the region where the wing adhesive portion 62 is arranged) is increased when the wing is folded back and attached to the wearing article, and the wing 41 can be folded stably. In addition, by overlapping the flap adhesive portion and the marker portion 80, the region where the wing 41 is attached (the region where the wing adhesive portion 62 is arranged) can be grasped using the marker portion 80 as a reference, and the operation of attaching the wing can be performed smoothly and easily.

[0041] The mark portion 80 may be composed of at least one of a compressed portion obtained by squeezing the top sheet 10 and the fibrous sheet 50, a colored portion provided on the fibrous sheet 50, and a colored portion provided on the top sheet 10. The mark portion 80 composed of a compressed portion only needs to squeeze at least the top sheet 10, and may squeeze the top sheet 10 and the fibrous sheet 50. The mark portion 80 composed of a compressed portion can temporarily retain bodily fluids and suppress the diffusion of bodily fluids. Furthermore, the mark portion 80 composed of a colored portion can improve the design of the mark portion 80 and increase the freedom of arrangement of the mark portion 80.

[0042] The marking portion 80 may be a compressed portion 86 formed by compressing the side sheet 12 and the fiber sheet 50. By forming the marking portion 80 with the compressed portion 86 formed by compressing the side sheet 12 and the fiber sheet 50, the user can be assured that the compressed portion 86 can suppress the diffusion of bodily fluids and improve the ability to draw in bodily fluids. In addition, in conventional absorbent articles, the compressed portion is disposed in an area overlapping the absorbent core 31. The side sheet 12 is disposed outside the absorbent core 31 in the width direction W, and by visually checking the marking portion (compressed portion) disposed on the flap 40, the user can recognize that the flap 40 also has a water-absorbing element disposed thereon, and can feel that the area for absorbing bodily fluids is wide, thereby providing a greater sense of security against leakage.

[0043] The mark portion 80 may be formed by an assembly of a plurality of compressed portions 86 arranged at intervals. According to this embodiment, compared to a configuration of continuous compressed portions, the region G86 between the compressed portions 86 becomes a deformation base point, and the flap 40 becomes more flexible and deformable. Also, compared to a configuration of continuous compressed portions, the diffusion speed of bodily fluids in the region between the compressed portions can be reduced, and leakage can be suppressed. In a form in which the mark portion 80 is formed by an assembly of compressed portions 86, a configuration having high compression portions and low compression portions alternately in the front-rear direction L is preferable. The rigidity of the mark portion 80 is increased by the compressed portions 86, but since the low compression portions are included, bending base points are formed, and the wings 41 become more likely to bend. The interval G86 between the compressed portions 86 is preferably shorter than the dimension of each compressed portion 86 (the diameter if the compressed portions are dot-shaped). Also, the shape of the mark portion formed by the assembly of compressed portions may be the shape of a virtual line connecting the centers of each compressed portion. The shape of each compressed portion may be a dot as in the present embodiment, a polygon (triangle, square, etc.), or a star, heart, etc. In a modified example, the mark portion 80 may be a continuous straight or curved line.

[0044] The shape of the compressed portion 86 of the mark portion 80 may be the same or similar to the compressed portion of the main body compressed portion 36. The compressed portion 86 constituting the mark portion 80 and the compressed portion constituting the main body compressed portion 36 have the same or similar shape, and in this embodiment, are dot-like. According to this embodiment, the mark portion 80 and the main body compressed portion 36 can be made to look integrated. The user can recognize the area where the absorbent core 31 is arranged and the area where the fiber sheet 50 is arranged as being integrated. A visual effect can be achieved in which the area where the fiber sheet 50 is arranged exhibits the same absorption effect as the area where the absorbent core 31 is arranged.

[0045] As shown in FIG. 1, the mark portion 80 may have a similar portion 88 that is shaped along the outer edge of the fiber sheet 50. As long as at least a part of the mark portion 80 has the similar portion 88 that is shaped along the outer edge 50E of the fiber sheet 50, the mark portion 80 may have a portion that is not shaped along the outer edge 50E of the fiber sheet 50 (a portion that is not a similar portion). The similar portion 88 includes a portion that is shaped the same as the outer edge 50E of the fiber sheet 50 (both dimensions and shape are the same), and a portion that is similar to the outer edge 50E of the fiber sheet 50. A similar shape is a shape that is the same in shape but has a different scale. For example, the shape may have the same ratio of sides and angles. In this embodiment, the entire mark portion 80 is shaped along the outer edge 50E of the fiber sheet 50, and the entire mark portion 80 constitutes the similar portion 88. By visually checking the mark portion 80, the user can easily grasp the outer edge of the area where the fiber sheet 50 is arranged. Furthermore, since the mark portion 80 is disposed along the outer edge 50E of the fiber sheet 50, the range of the area in which the fiber sheet 50 is disposed can be emphasized, further increasing the sense of security against leakage. Preferably, an area in which the distance between the outer edge 50E of the fiber sheet 50 and the mark portion 80 is constant (an area in which the difference in distance is 10% or less) may be provided. Since the mark portion 80 is disposed along the outer edge 50E of the fiber sheet 50, the mark portion 80 can make the outer edge 50E of the fiber sheet 50 more noticeable.

[0046] As shown in Fig. 4, the outer edge 50E of the fiber sheet 50 may be spaced apart from the outer edge 40E of the flap 40 and positioned more inward in the width direction W than the outer edge 40E of the flap 40. The outermost edge 50MW of the fiber sheet 50 positioned most outward in the width direction W may be positioned more inward in the width direction W than the flap width center 40CW. As shown in Fig. 1, the outer edge 50E of the fiber sheet 50 may have a similar portion 58 having a shape that follows the outer edge 40E of the flap 40. It is sufficient that at least a part of the outer edge 50E of the fiber sheet 50 has the similar portion 58 that follows the outer edge of the flap 40, and the outer edge 50E of the fiber sheet 50 may have a portion that does not follow the outer edge of the flap 40 (a portion that is not a similar portion). In this embodiment, a part of the outer edge 50E of the fiber sheet 50 (behind the imaginary line EL) is along the outer edge 40E of the flap 40, and the similar part 58 is formed by a part of the outer edge 50E of the fiber sheet 50 in the flap 40. The similar part 58 includes a part having the same shape as the outer edge 40E of the flap 40 and a part having a similar shape to the outer edge 40E of the flap 40. According to this embodiment, the fiber sheet 50 can be made to look as if it spreads outward in the width direction W together with the flap 40. The user can widely recognize the area where the fiber sheet 50 is arranged, and can feel more secure about leakage. Preferably, an area where the distance between the outer edge of the fiber sheet 50 and the outer edge of the flap 40 is constant (an area where the difference in distance is 10% or less) may be provided.

[0047] As shown in FIG. 4, the outer edge 50E of the fiber sheet 50 may have a convex portion (hereinafter referred to as a sheet convex portion) 55 that bulges outward in the width direction W. The sheet convex portion 55 is a portion that bulges in a curved or linear manner, and in this embodiment, it bulges in a curved manner. The fiber sheet 50 has the sheet convex portion 55, and has a shape in which the fiber sheet 50 spreads outward in the width direction W. The user can more widely recognize the area in which the fiber sheet 50 is arranged, and can feel more secure about leakage. The sheet convex portion 55 may be asymmetric with respect to the wing front-rear center 41CL. Since the sheet convex portion 55 is asymmetric with respect to the wing front-rear center 41CL, the sheet convex portion 55 is more noticeable than a shape that is symmetric with respect to the wing front-rear center 41CL, and the user can more easily get the impression that the entire absorbent article is spacious. In addition, the configuration in which the seat protrusion 55 is asymmetric with respect to the wing front-rear center 41CL may be such that one seat protrusion 55 is asymmetric with respect to the wing front-rear center 41CL, or the seat protrusions 55 may be arranged on both the front and rear sides of the wing front-rear center 41CL, and the number and shapes of the seat protrusions 55 may be different.

[0048] At least one sheet protrusion 55 may be provided, and multiple sheet protrusions 55 may be provided as in the present embodiment. Specifically, the sheet protrusion 55 may have a first sheet protrusion 551 and a second sheet protrusion 552 behind the first sheet protrusion 551. By having multiple sheet protrusions 55 on the outer edge 50E of the fiber sheet 50, the boundaries between the sheet protrusions 55 become deformation base points, and the flap 40 becomes easy to deform flexibly. The apex 551P of the first sheet protrusion 551 and the apex 552P of the second sheet protrusion 552 may be located at different positions in the width direction W. Since multiple sheet protrusions 55 are provided and located at different positions in the width direction W, the user can easily recognize the presence of the sheet protrusion 55 and easily get the impression that the fiber sheet 50 spreads in the width direction W. Therefore, it is easier to give the user the impression that the range in which the absorbent performance is exhibited is wide. The apex 551P of the first sheet convex portion 551 may be located outside the apex 552P of the second sheet convex portion 552 in the width direction W. The apex 551P of the first sheet convex portion 551 may be located forward of the wing front-rear center 41CL, and the apex 552P of the second sheet convex portion 552 may be located rearward of the wing front-rear center 41CL. The distance in the front-rear direction L between the apex 551P of the first sheet convex portion 551 and the wing front-rear center 41CL may be different from the distance between the apex 552P of the second sheet convex portion 552 and the wing front-rear center 41CL. With this configuration, the user can easily recognize the presence of each sheet convex portion 55 and easily get the impression that the fiber sheet 50 spreads in the width direction W.

[0049] A space G86 between the compressed portions 86 constituting the mark portion 80 may be arranged around the boundary between the multiple sheet convex portions. More specifically, the space G86 between the compressed portions 86 constituting the mark portion 80 may be arranged within a range of 10 mm from the boundary 55B between the sheet convex portions 55 (the boundary between the first sheet convex portion 551 and the second sheet convex portion 552). The boundary 55B between the sheet convex portions 55 is likely to become a deformation base point because of changes in rigidity. Since the space G86 between the compressed portions 86 (area where no compressed portions are provided) is arranged around this boundary 55B, the deformation of the space G86 between the compressed portions 86 absorbs force, suppresses deformation of the sheet convex portions 55, maintains the shape of the sheet convex portions 55, and suppresses leakage of bodily fluids over a wide range.

[0050] The mark portion 80 has a convex portion (hereinafter, referred to as a mark convex portion) 85 that bulges outward in the width direction W, and the mark convex portion 85 may be arranged along the sheet convex portion 55. The mark convex portion 85 is a portion that bulges in a curved or linear manner, and in this embodiment, it bulges in a curved manner. The mark convex portion 85 along the sheet convex portion 55 can make the sheet convex portion 55 that bulges outward in the width direction W more noticeable. The user can more widely recognize the area where the fiber sheet 50 is arranged, and can feel more secure about leakage. The mark convex portion 85 may be asymmetric with respect to the wing front-rear center 41CL. Since the mark convex portion 85 is asymmetric with respect to the wing front-rear center 41CL, the mark convex portion 85 is more noticeable, and the user can more easily get the impression that the entire absorbent article is spacious.

[0051] At least one mark protrusion 85 may be provided, and multiple mark protrusions 85 may be provided as in the present embodiment. Specifically, the mark protrusion 85 may have a first mark protrusion 851 and a second mark protrusion 852 behind the first mark protrusion 851. By providing multiple mark protrusions 85, the mark portion 80 becomes more noticeable. The apex 851P of the first mark protrusion 851 and the apex 852P of the second mark protrusion 852 may be located at different positions in the width direction W. Since multiple mark protrusions 85 are provided and located at different positions in the width direction W, the user can easily recognize the presence of the mark protrusion 85 and easily get a sense that the fiber sheet 50 spreads in the width direction W. The apex 851P of the first mark protrusion 851 may be located outside the apex 852P of the second mark protrusion 852 in the width direction W. The apex 851P of the first mark protrusion 851 may be located forward of the wing front-rear center 41CL, and the apex 852P of the second mark protrusion 852 may be located rearward of the wing front-rear center 41CL. In addition, the distance in the front-rear direction L between the apex 851P of the first mark protrusion 851 and the wing front-rear center 41CL may be different from the distance between the apex 852P of the second mark protrusion 852 and the wing front-rear center 41CL. With this configuration, the user can easily recognize the presence of each mark protrusion 85, and easily get an impression that the fiber sheet 50 spreads in the width direction W.

[0052] The outer edge 40E of the flap 40 may have a convex portion (hereinafter referred to as a flap convex portion) that bulges outward in the width direction W. At least a part of the outer edge of the flap 40 has a flap convex portion 45, and the flap 40 has a shape that spreads outward in the width direction W. The flap convex portion 45 is a portion that bulges in a curved or linear manner, and in this embodiment, it bulges in a curved manner. The flap convex portion 45 may be asymmetric with respect to the wing front-rear center 41CL. Since the flap convex portion 45 is asymmetric with respect to the wing front-rear center 41CL, the flap convex portion 45 is more noticeable than a shape that is symmetric with respect to the wing front-rear center 41CL, and the user is more likely to feel that the entire absorbent article 1 is spacious.

[0053] At least one flap protrusion 45 may be provided, and multiple flap protrusions 45 may be provided at intervals in the front-rear direction L as in the present embodiment. Specifically, the flap protrusion 45 may have a first flap protrusion 451 and a second flap protrusion 452 behind the first flap protrusion 451. By having multiple flap protrusions 45 on the outer edge 40E of the flap 40, the boundaries between the flap protrusions 45 become deformation base points, and the flap 40 becomes easy to deform flexibly. The apex 451P of the first flap protrusion 451 and the apex 452P of the second flap protrusion 452 may be located at different positions in the width direction W. Since multiple flap protrusions 45 are provided and the positions of the wing apexes in the width direction W are different, the user can easily recognize the presence of each flap protrusion 45 and easily get the impression that the wings 41 are expanding in the width direction W. The apex 451P of the first flap protrusion 451 may be located outside the apex 452P of the second flap protrusion 452 in the width direction W. The apex 451P of the first flap protrusion 451 may be located forward of the wing front-rear center 41CL, and the apex 452P of the second flap protrusion 452 may be located rearward of the wing front-rear center 41CL. The apex 451P of the first flap protrusion 451 and the apex 452P of the second flap protrusion 452 may be different in distance from the wing front-rear center 41CL. Since a plurality of flap protrusions 45 are provided and the positions in the front-rear direction L with respect to the wing front-rear center 41CL are different, the user can easily recognize the presence of each flap protrusion 45. The absorbent core 31 may not be arranged in the hip flap 42. In a configuration in which the absorbent core 31 is disposed in the hip flap 42, there is a risk that the hip flap 42 will absorb bodily fluids when lying on one's side, resulting in wetness. In addition, when used for long periods of time, such as at night, the absorbent core may become twisted, causing an uncomfortable feeling in the hip flap 42. By not disposing the absorbent core 31 in the hip flap 42, such leakage and discomfort can be suppressed.

[0054] The back sheet 20 may extend outward in the width direction W beyond the fiber sheet 50 in the flap 40. The entire non-skin side T2 of the fiber sheet 50 may be covered by the back sheet 20. The color difference ΔE between the area where the fiber sheet 50 and the absorbent core 31 overlap and the area where the fiber sheet 50 is arranged and the absorbent core 31 is not arranged may be 3.0 or less. Since the color difference between the area where only the fiber sheet 50 is arranged and the area where the fiber sheet 50 and the absorbent core 31 overlap is 3.0 or less, the user can recognize the two areas as the same area, and recognize the area where only the fiber sheet 50 is arranged as an area where an absorption effect can be obtained, and can obtain a sense of security against leakage. In addition, the color difference ΔE between the area where the fiber sheet 50 is arranged and the absorbent core 31 is not arranged and the area where the back sheet 20 is arranged and the fiber sheet 50 is not arranged is greater than 3.0. In the region where the fiber sheet 50 is arranged and the absorbent core 31 is not arranged, the back sheet 20 and the fiber sheet 50 are arranged. The color difference between the region where the fiber sheet 50 and the back sheet 20 are arranged and the region where the fiber sheet 50 is not arranged and the back sheet 20 is arranged is greater than 3.0. The user can distinguish and recognize the two regions, and can more easily recognize the range in which the fiber sheet 50 can suppress leakage of bodily fluids. In this embodiment, the absorbent core 31 and the back sheet 20 are white, and the color difference between them is 3.0 or less. On the other hand, the core wrap sheet 321 constituting the fiber sheet 50 is pink, and the color difference between the absorbent core 31 and the fiber sheet 50 is greater than 3.0. The color difference ΔE can be obtained by measuring the color of two points (two regions) to be measured using a commercially available colorimeter, and comparing the values ​​quantified based on the CIE1976 (L*a*b*) color space defined in JIS Z 8729. Specifically, when the difference in L* value between two measurement points is ΔL*, the difference in a* is Δa*, and the difference in b* value is Δb*, the color difference ΔE = [(ΔL*) 2 +(Δa*) 2 +(Δb*) 2 ] 1 / 2 It is calculated by:

[0055] As shown in FIG. 3, on a virtual line EL passing through the maximum width (the outermost edge 80MW) of the fiber sheet and extending in the width direction W, the distance L1 between the outer edge 50E of the fiber sheet 50 and the outer edge 80E of the marking portion 80 may be shorter than the distance L2 between the inner edge 80I of the marking portion 80 and the outer edge 31E of the absorbent core 31. The marking portion 80 is disposed between the outer edge 31E of the absorbent core 31 and the outer edge 50E of the fiber sheet 50, biased toward the outer edge 50E of the fiber sheet 50. Thus, the marking portion 80 can indicate that the fiber sheet 50 exists up to a position away from the absorbent core 31 on the outside in the width direction W. The user can widely recognize the area where the fiber sheet 50 is disposed, and can feel more secure about leakage. Preferably, the distance between the outer edge 50E of the fiber sheet 50 and the inner edge 80I of the marker portion 80 on the imaginary line EL may also be shorter than the distance L2 between the inner edge 80I of the marker portion 80 and the outer edge 31E of the absorbent core 31.

[0056] On the virtual line EL, the distance L1 between the outer edge 50E of the fiber sheet 50 and the outer edge 80E of the marking portion 80 may be shorter than the distance L3 between the inner edge 80I of the marking portion 80 and the inner edge 12I of the side sheet 12. The marking portion 80 is disposed between the inner edge 12I of the side sheet 12 and the outer edge 50E of the fiber sheet 50, biased toward the outer edge 50E of the fiber sheet 50. Therefore, the marking portion 80 can indicate that the fiber sheet 50 exists from the inner edge 12I of the side sheet 12 to a position away from the outer side in the width direction W. The user can widely recognize the area where the fiber sheet 50 is disposed, and can feel more secure about leakage. Preferably, on the virtual line EL, the distance between the outer edge 50E of the fiber sheet 50 and the inner edge 80I of the marking portion 80 may also be shorter than the distance L3 between the inner edge 80I of the marking portion 80 and the inner edge 12I of the side sheet 12.

[0057] The mark portion 80 may be disposed outside the outer edge of the center sheet 11 in the width direction W. The mark portion 80 and the center sheet 11 may be spaced apart in the width direction W. On the imaginary line EL, the distance L1 between the outer edge 50E of the fiber sheet 50 and the outer edge 80E of the mark portion 80 may be shorter than the distance L4 between the inner edge 80I of the mark portion 80 and the outer edge 11E of the center sheet 11. The mark portion 80 is disposed between the outer edge 11E of the center sheet 11 and the outer edge 50E of the fiber sheet 50, biased toward the outer edge 50E of the fiber sheet 50. Therefore, the mark portion 80 can indicate that the fiber sheet 50 exists from the outer edge 11E of the center sheet 11 to a position away from the outer side in the width direction W. The user can widely recognize the area where the fiber sheet 50 is disposed, and can feel more secure about leakage. Preferably, the distance between the outer edge 50E of the fiber sheet 50 and the inner edge 80I of the marker portion 80 on the imaginary line EL may also be shorter than the distance L4 between the inner edge 80I of the marker portion 80 and the outer edge 11E of the center sheet 11.

[0058] On the virtual line EL, the distance L1 between the outer edge 50E of the fiber sheet 50 and the outer edge 80E of the marking portion 80 may be shorter than the distance L5 between the inner edge 80I of the marking portion 80 and the outer edge 16E of the sheet joint portion 16. The marking portion 80 is disposed between the outer edge 16E of the sheet joint portion 16 and the outer edge 50E of the fiber sheet 50, biased toward the outer edge 50E of the fiber sheet 50. Thus, the marking portion 80 can indicate that the fiber sheet 50 exists from the outer edge 16E of the sheet joint portion 16 to a position away from the outer side in the width direction W. The user can widely recognize the area where the fiber sheet 50 is disposed, and can feel more secure about leakage. Preferably, the distance between the outer edge 50E of the fiber sheet 50 and the inner edge 80I of the marked portion 80 on the imaginary line EL may also be shorter than the distance L5 between the inner edge 80I of the marked portion 80 and the outer edge 16E of the sheet joint portion 16.

[0059] The distance L6 between the outer edge 50E of the fiber sheet 50 and the outer edge 40E of the flap 40 may be longer than the distance L1 between the outer edge 50E of the fiber sheet 50 and the outer edge 80E of the mark portion 80. Since the distance from the outer edge 50E of the fiber sheet 50 to the outer edge 40E of the flap 40 is relatively long, the fiber sheet 50 not only exhibits the effect of suppressing leakage, but also exhibits the effect of suppressing leakage even if bodily fluids diffuse beyond the fiber sheet 50, so that the user can feel more secure about leakage. Note that L6>L1 may be satisfied at any position of the absorbent article, and may be satisfied on the virtual line EL, or preferably may be satisfied over the entire area of ​​the flap 40 in the front-rear direction.

[0060] The outer edge 31E of the absorbent core 31 may be located inside the inner edge 40I of the wing 41 in the width direction W. That is, the absorbent core 31 and the inner edge 41I of the wing 41 may be spaced apart in the width direction W. When worn, the wing 41 is folded back to the non-skin side T2 of the worn article from the wing fold FL located at the inner edge 41I of the wing. Therefore, the wing fold FL is likely to come into contact with the thighs of the wearer. Since the absorbent core 31 is located inside the inner edge 41I of the wing 41 in the width direction W, the wing fold FL does not become too hard due to the presence of the absorbent core 31, and the contact with the thighs can be suppressed. In addition, in a configuration in which the absorbent core 31 is located in the wing 41, the absorbent core 31 folded back to the non-skin side of the worn article may retain body fluids, which may adhere to the legs of the wearer. However, since the absorbent core 31 is not disposed in the wings 41, it is possible to prevent bodily fluids from unintentionally adhering to the non-skin side T2 of the worn article at the folded-back portion.

[0061] Next, an absorbent article 1X according to a second embodiment will be described with reference to FIG. 5. The absorbent article 1X according to the second embodiment has wings 41 and hip flaps 42 as flaps 40. In the following description, the same components as those in the above-mentioned embodiment will be denoted by the same reference numerals and will not be described. The fiber sheet 50 of the absorbent article 1X is disposed on the wings 41 and the hip flaps 42. The fiber sheet 50 of the wings 41 and the fiber sheet 50 of the hip flaps 42 may be made of the same material and integrated. The marking portion 80 may have a first marking portion 81 disposed on the wings 41 and a second marking portion 82 disposed on the hip flaps 42. The hip flaps 42 are not folded back to the non-skin side T2 of the worn article when worn, but are disposed in contact with the body such as the buttocks. Since the fiber sheet 50 is disposed on the hip flap 42, bodily fluids are drawn between the fibers of the fiber sheet 50 and temporarily held therein, thereby preventing leakage of bodily fluids at the hip flap 42. Furthermore, a second marker portion 82 is disposed in the area overlapping the fiber sheet 50, and the user can easily grasp the position and presence of the fiber sheet 50 on the hip flap 42 by visually checking the second marker portion 82. The user can grasp the extent to which leakage can be prevented by the fiber sheet 50 on the hip flap 42, and can feel reassured about leakage.

[0062] The second mark portion 82 may have the same configuration as the mark portion 80 of the wing 41 described above. The second mark portion 82 may have a configuration in which the wing in the mark portion 80 of the wing described above is replaced with a hip flap. Specifically, for example, the mark portion 80 of the wing described above is disposed on the inside in the width direction W of the outer edge of the fiber sheet of the wing 41, but the second mark portion 82 may be disposed on the inside in the width direction W of the outer edge of the fiber sheet of the hip flap 42. The second mark portion 82 may be disposed across the center of the hip flap 42 in the front-rear direction L. Alternatively, the mark portion 80 may be disposed on a straight line extending in the width direction W from the portion of the hip flap 42 that bulges most outward in the width direction W. By providing the mark portion 80 in this portion, the user can more easily recognize the mark portion 80. In the second embodiment, the fiber sheet 50 is disposed on the hip flap 42 and the wing 41, but in a modified example, it may be disposed only on the hip flap 42, not on the wing 41. Furthermore, in the second embodiment, the marker portion 80 is disposed on the hip flap 42 and the wing 41, but in a modified example, it may be disposed only on the hip flap 42, not on the wing 41.

[0063] The non-skin surface of the absorbent article 1X may have a flap adhesive portion (not shown) for fastening the hip flap 42 to the worn article. At least a part of the flap adhesive portion may overlap the fiber sheet 50 and may overlap the second mark portion 82. By overlapping the flap adhesive portion and the fiber sheet 50, the area where the fiber sheet 50 is arranged is fastened to the worn article, making it easier for the user to grasp the presence and range of the fiber sheet 50. Similarly, by overlapping the flap adhesive portion and the second mark portion 82, the area where the second mark portion 82 is arranged is fastened to the worn article, making it easier for the user to grasp the presence and range of the second mark portion 82.

[0064] Although the present invention has been described in detail using the above-mentioned embodiment, it is clear to those skilled in the art that the present invention is not limited to the embodiment described in this specification. The present invention can be implemented in modified and altered forms without departing from the spirit and scope of the present invention defined by the description of the claims. Therefore, the description in this specification is intended to be illustrative and does not have any limiting meaning on the present invention. [Explanation of symbols]

[0065] 1, 1X: absorbent articles 10: Top sheet 11: Center seat 12: Side seat 16: Sheet joint 20: Back seat 30: Absorbent 31: Absorption core 32: Core wrap sheet 36: Main body compression section 40: Flap 41: Wing 50: Fiber sheet 58:Similar part 80: Marking section 86: Compression section 88:Similar part EL: Virtual line L: Anteroposterior direction T1: Skin side T2: Non-skin side W: Width direction

Claims

1. An absorbent core; A pair of flaps extending outward in a width direction from the absorbent core; A fiber sheet having fibers disposed on the pair of flaps; a back sheet disposed on the non-skin side of the absorbent core and the fiber sheet; An absorbent article having the absorbent core and a top sheet disposed on the skin side of the fibrous sheet, At least a portion of the fibrous sheet overlaps the absorbent core; A mark portion is disposed in an area overlapping the fiber sheet, At least a portion of the mark portion is disposed on the flap, The fiber sheet is disposed on the skin side of the absorbent core, An absorbent article, wherein in the width direction, an outer edge of the mark portion is spaced apart from the outer edge of the fibrous sheet and is positioned more inward than the outer edge of the fibrous sheet.

2. An absorbent core; A pair of flaps extending outward in a width direction from the absorbent core; A fiber sheet having fibers disposed on the pair of flaps; a back sheet disposed on the non-skin side of the absorbent core and the fiber sheet; An absorbent article having the absorbent core and a top sheet disposed on the skin side of the fibrous sheet, At least a portion of the fibrous sheet overlaps the absorbent core; A mark portion is disposed in an area overlapping the fiber sheet, At least a portion of the mark portion is disposed on the flap, The absorbent article, wherein the mark portion is a compressed portion formed by compressing at least the top sheet.

3. An absorbent article as described in claim 2, wherein the fiber sheet is positioned on the skin side of the absorbent core.

4. An absorbent article described in any one of claims 1 to 3, wherein the fiber sheet covers the entire absorbent core and extends outward in the width direction beyond the absorbent core.

5. The absorbent article according to claim 1 , wherein the mark portion has a similar shape to an outer edge of the fiber sheet.

6. The absorbent article according to claim 3 , wherein the outer edge of the fibrous sheet has a similar portion having a shape that conforms to the outer edge of the flap.

7. The absorbent article according to claim 4 , wherein an outer edge of the fibrous sheet has a convex portion that bulges outward in the width direction.

8. The back sheet extends outward in the width direction beyond the fiber sheet at the flap, a color difference ΔE between an area where the fiber sheet and the absorbent core overlap and an area where the fiber sheet is disposed and where the absorbent core is not disposed is 3.0 or less; 4. The absorbent article according to claim 1, wherein a color difference ΔE between an area where the fibrous sheet is arranged and the absorbent core is not arranged and an area where the back sheet is arranged and the fibrous sheet is not arranged is greater than 3.

0.

9. The absorbent article according to claim 1 , wherein an inner edge of the mark portion is located outboard of an inner edge of the flap in the width direction.

10. an outer edge of the mark portion is located inside the outer edge of the fiber sheet in the width direction and outside the outer edge of the absorbent core in the width direction; 4. The absorbent article according to claim 1, wherein on a virtual line passing through the maximum width of the fiber sheet and extending in the width direction, the distance between the outer edge of the fiber sheet and the outer edge of the marker portion is shorter than the distance between the inner edge of the marker portion and the outer edge of the absorbent core.

11. The top sheet is disposed on the outer side of the absorbent core in the width direction and has a side sheet disposed on the flap, The absorbent article according to claim 1 , wherein the mark portion is a compressed portion formed by compressing the side sheet and the fiber sheet.

12. The top sheet is disposed on the outer side of the absorbent core in the width direction and has a side sheet disposed on the flap, an outer edge of the mark portion is disposed inward in the width direction from an outer edge of the fiber sheet and outward in the width direction from an inner edge of the side sheet, 4. The absorbent article according to claim 1, wherein on a virtual line passing through the maximum width of the fiber sheet and extending in the width direction, the distance between the outer edge of the fiber sheet and the outer edge of the marker portion is shorter than the distance between the inner edge of the marker portion and the inner edge of the side sheet.

13. The top sheet has a center sheet covering the center of the absorbent core in the width direction, and a side sheet disposed on the flap and disposed on the outer side of the absorbent core in the width direction, an outer edge of the mark portion is disposed inward in the width direction from an outer edge of the fiber sheet and outward in the width direction from an outer edge of the center sheet, An absorbent article as described in any one of claims 1 to 3, wherein on a virtual line passing through the maximum width of the fiber sheet and extending in the width direction, the distance between the outer edge of the fiber sheet and the outer edge of the marker portion is shorter than the distance between the inner edge of the marker portion and the outer edge of the center sheet.

14. The top sheet has a center sheet covering the center of the absorbent core in the width direction, and a side sheet disposed on the flap and disposed on the outer side of the absorbent core in the width direction, A sheet joint portion is provided for joining the center sheet and the side sheet, an outer edge of the mark portion is disposed on the inner side of an outer edge of the fiber sheet in the width direction and on the outer side of an outer edge of the sheet joint portion in the width direction; 4. The absorbent article according to claim 1, wherein on a virtual line passing through the maximum width of the fiber sheet and extending in the width direction, the distance between the outer edge of the fiber sheet and the outer edge of the marker portion is shorter than the distance between the inner edge of the marker portion and the outer edge of the sheet joint portion.

15. an outer edge of the fiber sheet is located inside the outer edge of the flap in the width direction and outside the outer edge of the mark portion in the width direction; The absorbent article according to claim 1 , wherein the distance between the outer edge of the fibrous sheet and the outer edge of the flap is longer than the distance between the outer edge of the fibrous sheet and the outer edge of the mark portion.

16. 4. The absorbent article according to claim 1, wherein the marker portion is composed of at least one of a compressed portion formed by compressing the top sheet, a colored portion provided on the fibrous sheet, and a colored portion provided on the top sheet.

17. The absorbent article according to claim 16, wherein the mark portion is constituted by a collection of a plurality of the compressed portions arranged at intervals.

18. A main body compression section is provided, which is constituted by an assembly of compression sections that compress the absorbent core and the top sheet, The absorbent article according to claim 17 , wherein the shape of the compressed portion of the mark portion is the same as or similar to the shape of the compressed portion of the main body compression portion.

19. The flap is a wing that is folded back to the non-skin side of the wearing article, The absorbent article according to claim 1 , wherein an outer edge of the absorbent core is disposed more inward in the width direction than an inner edge of the wing.

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