Absorbent article

Abstract

To provide an absorbent article that can suppress deformation of an absorbent core while inhibiting an outer part of the absorbent core from becoming excessively rigid.SOLUTION: An absorbent article (10) has: a front-back direction (L) and a width direction that are orthogonal to each other; a crotch region (S3) that includes the center in the front-back direction, a first torso region (S1) that is located on one side in the front-back direction of the crotch region, and a second torso region (S2) that is located on the other side in the front-back direction of the crotch region; an absorbent core (30) that is arranged at least in the crotch region and the second torso region; a non-skin-side sheet (32) that is arranged on the non-skin side of the absorbent core and extends over the entire area of a core arrangement region in which the absorbent core is arranged; and a fastening member that extends outward in the width direction in the first torso region and is fastened to a non-skin-side surface of the non-skin-side sheet in the second torso region. The non-skin-side sheet in the second torso region is provided with a marker part (80) for indicating a fastening position of the fastening member.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to an absorbent article having a fastening member and a marking portion that indicates the fastening position of the fastening member.

Background Art

[0002] Patent Document 1 discloses an absorbent article having a fastening member disposed in one body circumferential region and a marking portion that indicates the position where the fastening member is fastened in the other body circumferential region. The marking portion of Patent Document 1 is attached to a target sheet attached to the non-skin surface of the other body circumferential region. The target sheet of Patent Document 1 is rectangular with a dimension in the width direction larger than the dimension in the longitudinal direction and is provided only in the other body circumferential region. The target sheet of Patent Document 1 is a sheet that constitutes a fastening mechanism together with the fastening member. A plurality of marking portions are arranged at intervals in the width direction on the target sheet. The user can position the fastening member when fastening by aligning the fastening member with an arbitrary one of the plurality of marking portions on the target sheet.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

[0004] However, the absorbent article of Patent Document 1 had the following problems. The target sheet is a sheet that constitutes the fastening mechanism, and is provided only in a part of the other waist region in order to fasten the fastening member. Since the target sheet and the fastening member together constitute the fastening mechanism, the fastening position of the fastening member is limited within the target sheet. In addition, since the user tries to align the fastening member with an arbitrary mark on the target sheet, the fastening position of the fastening member may be limited within the target sheet, and some users may feel compelled to fasten the fastening position of the fastening member within the target sheet.

[0005] The fastening position of the fastening member varies depending on the wearer's physique and wearing style, and it has been the case that the fastening member cannot be fastened at an appropriate position and the absorbent article cannot be worn properly. In particular, in the case of absorbent articles for adults, there are large dimensional differences depending on the wearer's physique and physical condition (for example, abdominal distension), and the fastening position of the fastening member can differ greatly. Therefore, problems of not being able to wear the absorbent article properly tend to occur.

[0006] In addition, the presence of the target sheet makes it easy for the user to grasp the range in which the fastening member is to be fastened, but since the presence of the target sheet increases the number of parts in the absorbent article, it is possible to omit the target sheet from an environmental perspective. However, if the target sheet is omitted, it becomes more likely that the fastening position of the fastening member cannot be grasped, and the problem of not being able to properly wear the absorbent article will occur.

[0007] The present invention has been made in consideration of such problems, and provides an absorbent article that reduces the number of parts in the absorbent article, while showing the user the fastening position of the fastening member, making it easy for the user to properly wear the absorbent article. [Means for solving the problem]

[0008] An absorbent article according to one embodiment has a front-rear direction and a width direction perpendicular to each other, a crotch region including a center in the front-rear direction, a first waist region located on one side of the crotch region in the front-rear direction and a second waist region located on the other side of the crotch region in the front-rear direction, an absorbent core located at least in the crotch region and the second waist region, a non-skin side sheet located on the non-skin side of the absorbent core throughout the entire core arrangement region in which the absorbent core is located, and a fastening member extending outward in the width direction in the first waist region and fastened to the non-skin side surface of the non-skin side sheet in the second waist region. The non-skin side sheet in the second waist region is provided with a marker portion for indicating a fastening position of the fastening member. [Brief description of the drawings]

[0009] [Figure 1] 1 is a plan view of an absorbent article according to an embodiment, as viewed from the skin side. [Diagram 2] 1 is a plan view of an absorbent article according to an embodiment, as viewed from the non-skin side. [Diagram 3] FIG. 2 is a cross-sectional view taken along the line AA shown in FIG. [Figure 4] FIG. 2 is a cross-sectional view taken along line BB shown in FIG. [Diagram 5] FIG. 2 is a plan view of a non-skin side sheet provided with a mark portion. [Figure 6] FIG. 6 is a partial enlarged view of the mark portion shown in FIG. 5. [Figure 7] 13A and 13B are diagrams showing a mark portion according to a modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] (1) Overview of the embodiment At least the following points will become apparent from the description of this specification and the accompanying drawings. The invention according to the first aspect is an absorbent article having a front-rear direction and a width direction perpendicular to each other, a crotch region including a center in the front-rear direction, a first waist region located on one side of the crotch region in the front-rear direction, and a second waist region located on the other side of the crotch region in the front-rear direction, an absorbent core located at least in the crotch region and the second waist region, a non-skin side sheet located on the non-skin side of the absorbent core over the entire core arrangement region in which the absorbent core is located, and a fastening member extending outward in the width direction in the first waist region and fastening to the non-skin side surface of the non-skin side sheet in the second waist region. The non-skin side sheet in the second waist region is provided with a marking portion indicating the fastening position of the fastening member. According to this aspect, the non-skin side sheet has a function of covering the non-skin side of the absorbent core over the entire absorbent core and a function of indicating the marking portion indicating the fastening position of the fastening member. The number of parts can be reduced compared to an embodiment in which each function is configured by a separate sheet. In addition, the non-skin side sheet is disposed covering the entire area of ​​the absorbent core, and the range is wider than that of a conventional target sheet. Therefore, the user is less likely to feel compelled to limit the range of the fastening position of the fastening member. Therefore, the user can grasp the range in which the fastening member is fastened without feeling compelled to limit the range of the fastening position of the fastening member. Therefore, the number of parts of the absorbent article is reduced, and the non-skin side sheet shows the fastening position of the fastening member to the user, allowing the user to wear the absorbent article appropriately.

[0011] According to a preferred embodiment, the invention according to embodiment 2 may have the following features in the invention according to embodiment 1. The non-skin side sheet has a first non-skin side sheet arranged on the non-skin side surface of the absorbent article, and a second non-skin side sheet arranged between the first non-skin side sheet and the absorbent core. The marker portion is arranged on the second non-skin side sheet. The first non-skin side sheet constitutes the non-skin side surface of the absorbent article, and is a sheet to which the fastening member is fastened. By providing the marker portion on the second non-skin side sheet located closer to the skin than the first non-skin side sheet, the display of the marker portion can be maintained even if the surface of the first non-skin side sheet becomes frayed due to repeated fastening operations of the fastening member. Therefore, the fastening position of the fastening member is continuously indicated to the user, and the user can properly wear the absorbent article even when performing repeated operations.

[0012] According to a preferred embodiment, the invention according to embodiment 3 may have the following features in the invention according to embodiment 1. The non-skin side sheet has a first non-skin side sheet arranged on the non-skin side surface of the absorbent article, and a second non-skin side sheet arranged between the first non-skin side sheet and the absorbent core. The marker portion is arranged on the first non-skin side sheet. The first non-skin side sheet constitutes the non-skin side surface of the absorbent article, and is a sheet to which a fastening member is fastened. Since the first non-skin side sheet itself has the marker portion, the user can determine the position of the fastening member while directly applying the fastening member to the marker portion, which increases the visibility of the marker portion and improves operability during fastening operation.

[0013] 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 non-skin side sheet includes a first non-skin side sheet arranged on the non-skin side surface of the absorbent article, and a second non-skin side sheet arranged between the first non-skin side sheet and the absorbent core. After an operation of attaching a fastening member to the first non-skin side sheet and peeling off the fastening member is repeated five times, the fastening strength of the fastening member when the fastening member is attached to the first non-skin side sheet is 0.7 N or more. According to this embodiment, even when the fastening operation of the fastening member is repeated, the fastening strength of the fastening member can be maintained, and even if the position of the fastening member cannot be determined in one attempt, the fastening operation can be repeated to place the fastening member in an appropriate position and maintain that position. In addition, in a form in which an absorbent pad is attached to the inside of an absorbent article and the absorbent article is used, the inner absorbent pad may be replaced and the outer absorbent article may be used repeatedly. In this way, even when the absorbent article is used repeatedly, the fastening operation can be performed repeatedly and the position of the fastening member can be maintained.

[0014] According to a preferred embodiment, the invention according to embodiment 5 may have the following features in the invention according to any one of embodiments 1 to 4. The fastening member includes a first fastening member and a second fastening member located inside the first fastening member in the front-rear direction. In the front-rear direction, the length of the marker portion is longer than the distance between the first fastening member and the second fastening member. According to this embodiment, when a plurality of fastening members are fastened, the marker portion is disposed across the fastening members, so that the distance between the fastening members and their relative positions can be grasped, and both fastening members can be disposed appropriately to properly wear the absorbent article.

[0015] 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 length in the front-rear direction of the non-skin side sheet on which the marker portion is provided is at least 2.0 times the length of the marker portion in the front-rear direction. According to this embodiment, the length in the front-rear direction of the non-skin side sheet on which the marker portion is provided is at least 2.0 times the length of the marker portion, and the non-skin side sheet is disposed around the marker portion. The user feels that the area for fastening the fastening member is wide, and can fasten the fastening member in an appropriate position according to each mode of use without feeling that the range for fastening the fastening member is limited.

[0016] According to a preferred embodiment, the invention according to embodiment 7 may have the following features in the invention according to embodiment 6. The non-skin side sheet provided with the marker portion is disposed over the entire area of ​​the absorbent article in the front-rear direction. According to this embodiment, since the non-skin side sheet provided with the marker portion is disposed over the entire area of ​​the absorbent article in the front-rear direction, the area to which the fastening member can be fastened is not divided by the front-rear edge of the non-skin side sheet. Therefore, the user feels that the area to which the fastening member is fastened extends over the entire area in the front-rear direction, and the user can fasten the fastening member at an appropriate position according to each mode of use without feeling that the range to which the fastening member is fastened is limited.

[0017] According to a preferred embodiment, the invention according to embodiment 8 may have the following features in the invention according to any one of embodiments 1 to 7. The non-skin side sheet is provided with an information display section that displays information about the absorbent article. The information display section and the mark section are spaced apart when viewed in a plan view of the absorbent article. A user can grasp information about the absorbent article from the information display section while positioning the fastening member using the mark section. Because the information display section and the mark section are spaced apart, a user can recognize them as separate displays without confusing the two.

[0018] 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. When viewed from the non-skin side of the absorbent article, the color difference ΔE between the mark surrounding area arranged around the mark portion and the information surrounding area arranged around the information display portion is 3.0 or less. According to this embodiment, the color difference between the mark surrounding area around the mark portion and the information surrounding area around the information display portion is 3.0 or less, and the user can easily recognize these areas as one. Therefore, by integrating the surroundings including the information display portion and the surroundings including the mark portion while exerting the respective functions of the information display portion and the mark portion, the fastening member can be fastened at an appropriate position according to each mode of use without feeling that the range of fastening of the fastening member is limited.

[0019] 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 non-skin side sheet has an auxiliary design portion arranged along the front-to-rear direction in a region extending inward in the front-to-rear direction from the marker portion. The auxiliary design portion is separated from the marker portion in a plan view of the absorbent article. According to this embodiment, the auxiliary design portion can indicate the front-to-rear direction of the absorbent article. Furthermore, because the auxiliary design portion and the marker portion are separated in a plan view, the user can recognize them as separate indications without confusing them with each other.

[0020] According to a preferred embodiment, the invention according to embodiment 11 may have the following features in the invention according to embodiment 10. The mark portion has a first mark portion and a second mark portion arranged at an interval in the width direction. The second mark portion is located outside the first mark portion in the width direction. The auxiliary design portion has a first auxiliary design portion arranged in an area extending from the first mark portion to the inside in the front-rear direction, and a second auxiliary design portion arranged in an area extending from the second mark portion to the inside in the front-rear direction. According to this embodiment, the front-rear direction of the absorbent article can be indicated by the first auxiliary design portion and the second auxiliary design portion. In addition, since each auxiliary design portion extends from the mark portion to the inside in the front-rear direction, the user can grasp the widthwise positions of the multiple mark portions by the auxiliary design portion. Therefore, when determining the fastening position of the fastening member, it becomes easier for the user to determine the fastening position in the width direction.

[0021] According to a preferred embodiment, the invention according to embodiment 12 may have the following features in the invention according to embodiment 10 or embodiment 11. The length of the auxiliary design part in the front-to-rear direction is 50% or more of the entire area of ​​the absorbent article in the front-to-rear direction. According to this embodiment, the auxiliary design part can indicate the front-to-rear direction of the absorbent article over a wide range (more than half of the range) in the front-to-rear direction of the absorbent article, and the absorbent article can be worn while suppressing tilting of the absorbent article. In addition, the auxiliary design part can indicate the widthwise positions of multiple marker parts over a wide range in the front-to-rear direction of the absorbent article.

[0022] 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. Before use, the absorbent article is folded around a first fold extending in the width direction on the first waist region side from the center in the front-rear direction of the absorbent article and a second fold extending in the width direction on the second waist region side from the center in the front-rear direction of the absorbent article. The non-skin side sheet is provided with a plurality of information display sections showing information about the absorbent article. The non-skin side sheet in a region between the first fold and the outer edge in the front-rear direction of the first waist region is provided with the information display section, but not with the marker section. The non-skin side sheet in a region between the first fold and the second fold is provided with the information display section, but not with the marker section. The non-skin side sheet in a region between the second fold and the outer edge in the front-rear direction of the second waist region is provided with the marker section and the information display section. The dimensions of the information display part in the region between the second fold and the outer edge of the second waist region in the front-rear direction are larger than the dimensions of the information display part in other regions. According to this embodiment, since the information display part is provided in each of the three regions bounded by the first fold and the second fold, the user can visually recognize the information display part even in the folded state and in the process of unfolding, and can obtain information about the absorbent article through the information display part. Furthermore, since the mark part is provided only on the second waist region side, which is the main region for fastening the fastening member, among the three regions, the user can easily intuitively grasp that the mark part is different from other designs and indicates the position of the fastening member. Therefore, even in a form without a target sheet, the fastening member can be positioned intuitively using the mark part. Furthermore, since the dimensions of the information display part in the second waist region, which is the main region for fastening the fastening member, are large, the region for fastening the fastening member can be more easily grasped. Furthermore, due to the difference in size of the information display portion, it becomes easier to detect the front-to-rear position of the non-skin side sheet to which the information display portion is attached, and this makes it easier to perform positioning during production.

[0023] According to a preferred embodiment, the invention according to Aspect 14 may have the following features in the invention according to any one of Aspects 1 to 13. The fastening member has a first fastening member and a second fastening member located inward in the front-rear direction from the first fastening member. The marker portion has a first marker portion and a second marker portion arranged at an interval in the width direction. The second marker portion is located outward in the width direction from the first marker portion. The first marker portion and the second marker portion each have an outer marker portion located outward in the front-rear direction from a marker imaginary line along the width direction at the center of the marker portion in the front-rear direction, and an inner marker portion located inward in the front-rear direction from the marker imaginary line. The outer marker portion has an outer inclined portion extending outward in the front-rear direction while facing inward in the width direction. The inner marker portion has an inner inclined portion extending inward in the front-rear direction while facing inward in the width direction. According to this aspect, when the first fastening member is disposed on the outer mark portion, the first fastening member can be fastened so as to be inclined inward in the front-rear direction toward the inside of the width direction by arranging the first fastening member so as to be aligned with the outer inclined portion of the first mark portion, or the first fastening member can be fastened so as to be aligned with the outer inclined portion of the second mark portion, so that the first fastening member can be arranged at different positions in the width direction with a predetermined inclination. Furthermore, when the second fastening member is disposed on the inner mark portion, the second fastening member can be fastened so as to be inclined outward in the front-rear direction toward the inside of the width direction by arranging the second fastening member so as to be aligned with the inner inclined portion of the first mark portion, or the second fastening member can be arranged so as to be aligned with the inner inclined portion of the second mark portion, so that the second fastening member can be arranged at different positions in the width direction with a predetermined inclination. By arranging the fastening members in this manner, the first fastening member located on the outer side in the front-to-back direction can be arranged so as to face the inner side in the front-to-back direction, and the second fastening member located on the inner side in the front-to-back direction can be arranged so as to face the outer side in the front-to-back direction.

[0024] According to a preferred embodiment, the invention according to embodiment 15 may have the following features in the invention according to embodiment 14. The outer inclined portion and the inner inclined portion are continuous in the front-to-rear direction. According to this embodiment, the user can recognize the outer inclined portion and the inner inclined portion as an integrated marker portion, and the difference in the inclination direction between the outer inclined portion and the inner inclined portion allows the fastening members to be placed in appropriate directions and positions on each inclined portion.

[0025] According to a preferred embodiment, the invention according to embodiment 16 may have the following features in the invention according to embodiment 14 or embodiment 15. The marker portion has an order indicating portion between the outer inclined portion and the inner inclined portion, which indicates the order of the marker portions in the width direction. According to this embodiment, since the marker portion has an order indicating portion, the user can grasp the position of each of the multiple marker portions in the width direction. Furthermore, since there is an order indicating portion between the outer inclined portion and the inner inclined portion, the user can recognize that the outer inclined portion and the inner inclined portion are respectively used to fasten different fastening members, and each fastening member can be placed on each inclined portion.

[0026] According to a preferred embodiment, the invention according to Embodiment 17 may have the following features in the invention according to any one of Embodiments 1 to 13. The fastening member has a first fastening member and a second fastening member arranged at intervals in the front-rear direction. The mark portion has an outer mark portion located outside the virtual mark line extending in the width direction at the central portion of the mark portion in the front-rear direction, and an inner mark portion located inside the virtual mark line in the front-rear direction. The outer mark portion has an outer design portion extending inward in the front-rear direction and inward in the width direction. The inner mark portion has an inner design portion extending outward in the front-rear direction and inward in the width direction. According to this embodiment, when arranging the first fastening member on the outer mark portion, by arranging it along the extending direction of the first fastening member on the outer design portion, the first fastening member can be fastened so as to incline inward in the front-rear direction toward the inner side in the width direction. Since the outer design portion extends in the width direction, by shifting the position where the first fastening member is stopped on its line, the first fastening member can be arranged at different positions in the width direction with a predetermined inclination. Also, when arranging the second fastening member on the inner mark portion, by arranging it along the extending direction of the second fastening member on the inner design portion, the second fastening member can be fastened so as to incline outward in the front-rear direction toward the inner side in the width direction. Since the inner design portion also extends in the width direction, by shifting the position where the second fastening member is stopped on its line, the second fastening member can be arranged at different positions in the width direction with a predetermined inclination. By arranging the fastening members in this way, the first fastening member located outside in the front-rear direction can be arranged to face inward in the front-rear direction, and the second fastening member located inside in the front-rear direction can be arranged to face outward in the front-rear direction.

[0027] (2) Absorbent article according to the embodiment Hereinafter, a disposable diaper as an absorbent article according to an embodiment will be described with reference to the drawings. The disposable diaper may be a disposable diaper for adults or a disposable diaper for children. In the following description of the drawings, the same or similar parts are denoted with the same or similar reference numerals. However, it should be noted that the drawings are schematic and 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. In addition, in the cross-sectional views, the components are shown separated from each other for the convenience of explanation, but in the actual product, the components are in contact with each other.

[0028] FIG. 1 is a plan view of the absorbent article 10 according to the present embodiment as viewed from the skin side T1, and FIG. 2 is a plan view of the absorbent article 10 according to the embodiment as viewed from the non-skin side. FIG. 3 is a cross-sectional view taken along line AA in FIG. 1. FIG. 4 is a cross-sectional view taken along line BB in FIG. 1. The plan views shown in FIG. 1 and FIG. 2 show an extended state in which the absorbent article 10 is extended to a state in which no wrinkles are formed. The extended state in the present invention is a state in which the disposable diaper 10 is extended to a state in which no wrinkles are formed. In addition, the natural state in the present invention is a state in which the disposable diaper 10 is taken out of the package and left for 24 hours in an atmosphere of 20° C.±2° C. and a relative humidity of 60%±5% RH, in the case of the disposable diaper 10 contained in a package. The absorbent article 10 of the present embodiment is an unfolded type absorbent article for adults, but is not limited thereto. The absorbent article 10 may be an absorbent article for children.

[0029] The absorbent article 10 has a front-rear direction L and a width direction W that are perpendicular to each other. The front-rear direction L is defined by the direction extending from the front side to the back side of the body. In other words, the front-rear direction L is the direction extending from front to back in the unfolded absorbent article 10. The absorbent article 10 also has a thickness direction T that is perpendicular to both the front-rear direction L and the width direction W. The thickness direction T extends to a skin side T1 that faces the wearer and a non-skin side T2 that faces away from the wearer. In this specification, the "skin side" corresponds to the side that faces the wearer's skin during use. The "non-skin side" corresponds to the side that faces away from the wearer's skin during use.

[0030] The absorbent article 10 has a crotch region S3, a first waist region S1 located on one side of the crotch region S3 in the front-rear direction L, and a second waist region S2 located on the other side of the crotch region S3 in the front-rear direction L. The first waist region S1 and the second waist region S2 cover the waist region of the wearer. The crotch region S3 is located between the first waist region S1 and the second waist region S2, and is placed under the crotch of the wearer when in use. The crotch region S3 can be determined by the absorbent core 30. Specifically, in an absorbent core 30 having a waist portion 33, the region in which the waist portion 33 of the absorbent core 30 is formed is the region in the front-rear direction L of the crotch region S3. In an absorbent core 30 not having a waist portion 33, the central region of the three equal parts obtained by dividing the length of the absorbent core 30 in the front-rear direction L is the region in the front-rear direction L of the crotch region S3. In this embodiment, the front edge of the waistband 33 of the absorbent core 30 defines the boundary between the crotch region S3 and the first waistband region S1, and the rear edge of the waistband 33 of the absorbent core 30 defines the boundary between the crotch region S3 and the second waistband region S2.

[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 throughout the entire component. 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 throughout the entire component. In addition, the front end and rear end in the present invention 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 the front end and rear end, and the outer end edge includes the front end edge and rear end edge. In addition, the inner side is a side that includes the inner edge and extends along the front-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] The first waist region S1 is a region having a fastening member 90 described later. The second waist region S2 is a region not having the fastening member 90. One of the first waist region S1 and the second waist region S2 constitutes a front waist region facing the front side of the wearer's body when used, and the other constitutes a rear waist region facing the rear side of the wearer's body when used. In a form in which the fastening member 90 is arranged in the front waist region, the first waist region constitutes the front waist region, and in a form in which the fastening member 90 is arranged in the rear waist region, the first waist region constitutes the rear waist region. The fastening member 90 of this embodiment is arranged in the rear waist region, and the first waist region S1 constitutes the rear waist region. In a modified example, the fastening member 90 may be arranged in the front waist region, and the first waist region S1 constitutes the front waist region.

[0033] The absorbent article 10 may have a main body portion 20. The main body portion 20 is disposed across the crotch region S3, the first waist region S1, and the second waist region S2. The main body portion 20 is formed by laminating an absorbent core 30, a skin-side sheet 35 located on the skin side T1 of the absorbent core 30, and non-skin-side sheets 31, 32 located on the non-skin side T2 of the absorbent core 30. The main body portion 20 may be disposed over the entire area in the front-rear direction L of the absorbent article 10. The absorbent core 30 may be disposed at least in the crotch region S3 and the second waist region S2. The absorbent core 30 may be disposed in the first waist region S1 as well as in the crotch region S3 and the second waist region S2. The absorbent core 30 may be a laminate of an absorbent material including, for example, pulverized pulp or a superabsorbent polymer (SAP), or a mixture thereof. The absorbent core 30 may be covered by a core wrap 30a. The core wrap 30a is disposed so as to cover the skin side T1 and the non-skin side T2 of the absorbent core 30, and may be, for example, a tissue or a nonwoven fabric sheet.

[0034] The skin-side sheet 35 is disposed on the skin side T1 of the absorbent core 30 over the entire core arrangement region where the absorbent core 30 is arranged. The core arrangement region is a region where the absorbent core 30 is arranged in a plane. The skin-side sheet 35 may have a top sheet 35a and a side sheet 35b. The top sheet 35a is liquid permeable and may be disposed so as to cover at least the center in the width direction W of the absorbent core 30. The side sheet 35b is made of a hydrophobic nonwoven fabric and may be disposed so as to cover both side portions of the top sheet 35a in the width direction W outside the center in the width direction W of the absorbent core 30. The skin-side sheet 35 may be configured of only one top sheet without including the top sheet 35a and the side sheet 35b.

[0035] The non-skin side sheet is arranged on the non-skin side T2 of the absorbent core 30 over the entire core arrangement region in which the absorbent core 30 is arranged. The non-skin side sheet 32 ​​may have a first non-skin side sheet 31 arranged on the surface of the non-skin side T2 of the absorbent article 10, and a second non-skin side sheet 32 ​​arranged between the first non-skin side sheet 31 and the absorbent core 30. One of the first non-skin side sheet 31 and the second non-skin side sheet 32 ​​is a liquid-impermeable sheet, and in this embodiment, the second non-skin side sheet 32 ​​is liquid-impermeable. In this embodiment, the first non-skin side sheet 31 is made of a nonwoven fabric, and the second non-skin side sheet 32 ​​is made of a film. The outer edge of the second non-skin side sheet 32 ​​may be located inside the outer edge of the first non-skin side sheet 31 in the width direction W. The non-skin side sheet may also include other sheets than the first non-skin side sheet 31 and the second non-skin side sheet 32.

[0036] The main body 20 is constructed by laminating an absorbent core 30, a skin side sheet 35, and non-skin side sheets 31, 32, and the outer edge of the main body 20 in the front-rear direction L coincides with the outer edge of the absorbent article 10, and the outer edge of the main body 20 coincides with the outer edge of the skin side sheet 35 and the outer edge of the first non-skin side sheet 31. The main body 20 is provided with a leg opening 65. The leg opening 65 is a portion recessed inward in the width direction W from the outer edge of the skin side sheet 35 and the outer edge of the non-skin side sheet 31. A pair of leg stretchable parts 67 are provided on the inside of the leg opening 65 in the width direction W. The leg stretchable parts 67 are arranged on both sides of the article width center 10CW. The leg stretchable parts 67 extend in the front-rear direction outside the absorbent core 30 in the width direction W.

[0037] The fastening member 90 extends outward in the width direction W in the first waist region S1, and is fastened to the non-skin side surface of the non-skin side sheet in the second waist region S2. In an embodiment having a first non-skin side sheet 31 and a second non-skin side sheet 32 ​​as in this embodiment, the fastening member 90 is fastened to the first non-skin side sheet 31. The fastening member 90 may be joined to the main body portion 20, or may be joined to the flap portion 25 as in this embodiment. The flap portion 25 is configured as a separate body from the main body portion 20, and is a sheet that extends outward in the width direction W beyond the skin side sheet 35 and the non-skin side sheets 31, 32. The flap portion 25 may have a flap sheet 26 joined to the skin side sheet 35 and the non-skin side sheets 31, 32 and extending outward in the width direction W from the skin side sheet 35 and the non-skin side sheets 31, 32, and a stretchable portion 27 stretching in the width direction W. The fastening member 90 may be joined to the flap sheet 26 in an area outside the stretchable portion 27 in the width direction W. The flap portion 25 is disposed in the first waist region S1, and is not disposed in the second waist region S2. The fastening member 90 may be joined to an outer portion of the flap portion 25. That is, the fastening member 90 may be joined to the main body portion 20 via the flap portion 25, and extend outward in the width direction beyond the main body portion 20.

[0038] The fastening member 90 has a mechanical hook such as a hook member that fastens to the non-skin side sheet. The mechanical hook constitutes a fastening mechanism. The fastening member 90 may be arranged on both sides of the width direction W of the main body 20. The fastening member 90 may be arranged one on each side, or may be arranged multiple on each side. The fastening member 90 of this embodiment has a first fastening member 91 and a second fastening member 92 arranged at an interval in the front-rear direction L, and the first fastening member 91 and the second fastening member 92 are arranged on both sides of the article width center 10CW. The second fastening member 92 is located inside the first fastening member 91 in the front-rear direction L. The first fastening member 91 has an extension direction 90CL in which the fastening member 90 extends. The extension direction 90CL is a direction perpendicular to the width of the fastening member 90, and in this embodiment, it is along the width direction W.

[0039] Before use, the absorbent article 10 may be folded around a crease extending in the width direction W. As shown in Fig. 2, the crease may include a first crease FL1 disposed on the first waist region S1 side of the center of the front-rear direction L of the absorbent article 10, and a second crease FL2 disposed on the second waist region S2 side of the center of the front-rear direction L of the absorbent article 10. The first crease FL1 and the second crease FL2 may be creases that fold the absorbent article 10 so that the skin side T1 surfaces of the absorbent article 10 face each other. Furthermore, the absorbent article 10 may be folded around a crease that extends along the front-rear direction before being folded around the first crease FL1 and the second crease FL2.

[0040] The absorbent article 10 of the present embodiment is configured to reduce the number of parts of the absorbent article 10, while showing the fastening position of the fastening member 90 to the user, making it easier for the user to properly wear the absorbent article 10. Next, a configuration for reducing the number of parts of the absorbent article 10, while showing the fastening position of the fastening member 90 to the user, making it easier for the user to properly wear the absorbent article 10 will be described.

[0041] The non-skin side sheet in the second waist region S2 is provided with a marking portion 80 indicating the fastening position of the fastening member 90. The marking portion 80 is configured to be visible from the surface of the non-skin side T2 of the absorbent article 10. The marking portion 80 may be configured by printing on the non-skin side sheet. The non-skin side sheet is arranged on the non-skin side T2 of the absorbent core 30 over the entire core arrangement area in which the absorbent core 30 is arranged, and has the marking portion 80. That is, the non-skin side sheet has a function of covering the non-skin side T2 of the absorbent core 30 over the entire area of ​​the absorbent core 30, and a function of indicating the marking portion 80 indicating the fastening position of the fastening member 90. The number of parts can be reduced compared to a form in which each function is configured by a separate sheet. In addition, the non-skin side sheet is arranged to cover the non-skin side T2 of the absorbent core 30 over the entire area of ​​the absorbent core 30, and the range is wider than that of a conventional target sheet. Therefore, the user is unlikely to feel compelled to limit the range of the fastening position of the fastening member 90. Therefore, the user can grasp the range to fasten the fastening member without feeling compelled to limit the range of the fastening position of the fastening member 90. Therefore, the number of parts of the absorbent article is reduced, and the fastening position of the fastening member 90 is shown to the user by the non-skin side sheet, allowing the absorbent article 10 to be worn appropriately.

[0042] In a configuration having multiple non-skin side sheets, the marker portion 80 may be arranged on one of the multiple non-skin side sheets. The marker portion 80 may be arranged on the second non-skin side sheet 32. The first non-skin side sheet 31 constitutes the surface of the non-skin side T2 of the absorbent article, and is a sheet to which the fastening member 90 is fastened. By providing the marker portion 80 on the second non-skin side sheet 32 ​​located closer to the skin side T1 than the first non-skin side sheet 31, the display of the marker portion 80 can be maintained even if the surface of the first non-skin side sheet 31 becomes frayed due to repeated fastening operations of the fastening member 90. Therefore, the fastening position of the fastening member 90 is continuously indicated to the user, and the user can properly wear the absorbent article 10 even when performing repeated operations.

[0043] In a modified example, the marker portion 80 may be disposed on the first non-skin side sheet 31. The first non-skin side sheet 31 constitutes the non-skin side surface of the absorbent article 10, and is a sheet to which the fastening member 90 is fastened. Since the marker portion 80 is provided on the first non-skin side sheet 31 itself, the user can determine the position of the fastening member 90 while directly applying the fastening member 90 to the marker portion 80, thereby improving the visibility of the marker portion 80 and improving the operability during fastening operation.

[0044] The first non-skin side sheet 31 is preferably configured so that the fastening member 90 can be fastened even when the fastening operation of the fastening member 90 is repeated. Specifically, the fastening strength of the fastening member 90 when fastened to the first non-skin side sheet 31 after the operation of fastening the fastening member 90 to the first non-skin side sheet 31 and peeling the fastening member 90 is repeated five times may be 0.7 N or more. According to this configuration, the fastening strength of the fastening member 90 can be maintained even when the fastening operation of the fastening member 90 is repeated, and even if the position of the fastening member 90 cannot be determined in one attempt, the fastening operation can be repeated to place the fastening member 90 in an appropriate position and maintain that position. In a form in which an absorbent article is used by attaching an absorbent pad to the inside of the absorbent article, there is a case where the inner absorbent pad is replaced and the outer absorbent article is used repeatedly. Even when the absorbent article is used repeatedly in this way, the fastening operation can be repeated to maintain the position of the fastening member.

[0045] The fastening strength can be measured by the following method. First, a sample to be measured is prepared. A material (in this embodiment, the first non-skin side sheet) to which the fastening member is to be attached is cut out. The cut-out material is attached to a smooth stainless steel plate. The cut-out width is 45 mm in the front-rear direction × 90 mm in the width direction. After the fastening member (50 mm in the width direction) is attached to the material attached to the stainless steel plate, a 700 g weight is used to make one round trip (300 mm / min) with an electric tape pressing roll (SA-1003-A, Tester Sangyo Co., Ltd.), and then a 500 g load is applied in the shear direction for 3 seconds. This completes the preparation of the sample, and then the fastening strength is measured.

[0046] Next, a 135 degree plate is fixed to the underside of a tensile tester (Instron 5965 type). The plate is fixed so that the surface on which the measurement target is placed is inclined and the angle between the plate's placement surface and the horizontal direction is 135 degrees. Next, a sample with a fastening member attached to a target material is placed on the placement surface. At this time, the target material is abutted against the placement surface of the plate and fixed. The lower part of the fastening member is gripped and pulled upward with Instron (300 mm / min), and the maximum load until the fastening member is peeled off from the material is measured. After the fastening member is pulled up five times with Instron, the fastening member is pulled up again with Instron, and the maximum load at this time is defined as "the fastening strength when the fastening member is fastened to the non-skin side sheet after the operation of fastening the fastening member to the non-skin side sheet and peeling off the fastening member is repeated five times".

[0047] The fastening strength of the second fastening operation of fastening the fastening member to the non-skin side sheet and peeling the fastening member (the fastening strength when the fastening operation is performed again after the first fastening operation) may be higher than the fastening strength of the first fastening operation of fastening the fastening member to the non-skin side sheet and peeling the fastening member. With this configuration, even when the fastening operation is performed repeatedly, the fastening member 90 can be placed at an appropriate position and the position can be maintained.

[0048] As shown in FIG. 2, the length L80 of the mark portion in the front-rear direction L may be longer than the interval G90 between the first fastening member 91 and the second fastening member 92. The length of the mark portion 80 in the front-rear direction L is the maximum length of the mark portion 80. When the mark portion 80 is one design as in the present embodiment, the length of the mark portion 80 in the front-rear direction L is the maximum length of the design. When the mark portion 80 is an assembly of multiple designs, the length of the mark portion 80 in the front-rear direction L is the maximum length of the assembly, and is the length in the front-rear direction L between the front edge of the design located at the frontmost side and the rear edge of the design located at the rearmost side. In a form in which the interval between the first fastening member 91 and the second fastening member 92 varies, the interval may be the shortest interval. According to this configuration, when multiple fastening members 90 are fastened, the marker portion 80 is positioned across the fastening members 90, making it possible to grasp the spacing between the fastening members 90 and their relative positions, and to properly position both fastening members and properly wear the absorbent article 10.

[0049] The length in the front-rear direction L of the non-skin side sheet on which the marker portion 80 is provided may be 2.0 times or more the length in the front-rear direction L of the marker portion 80. The length in the front-rear direction L of the non-skin side sheet on which the marker portion 80 is provided is the length in the front-rear direction L of the sheet on which the marker portion 80 is provided among the non-skin side sheets. According to this configuration, the length in the front-rear direction L of the non-skin side sheet on which the marker portion 80 is provided is 2.0 times or more the length of the marker portion 80, and the non-skin side sheet is disposed around the marker portion 80. The user feels that the area to which the fastening member 90 is fastened is spread over a wide range in the front-rear direction, and can fasten the fastening member at an appropriate position according to each mode of use without feeling that the fastening range of the fastening member 90 is limited.

[0050] Preferably, the non-skin side sheet provided with the mark portion 80 may be disposed over the entire length in the front-rear direction L of the absorbent article 10. Since the non-skin side sheet provided with the mark portion 80 is disposed over the entire length in the front-rear direction L of the absorbent article 10, the region where the fastening member 90 can be fastened is not delimited by the front and rear edges in the front-rear direction L of the non-skin side sheet. Thus, the user has the impression that the region where the fastening member 90 is fastened extends over the entire length in the front-rear direction L, and can fasten the fastening member at an appropriate position according to each usage mode without feeling that the fastening range of the fastening member 90 is restricted. The mark portion 80 of the present embodiment is attached to the second non-skin side sheet 32, and the length in the front-rear direction of the non-skin side sheet provided with the mark portion 80 is the length in the front-rear direction L of the second non-skin side sheet 32. The second non-skin side sheet 32 is disposed over the entire length in the front-rear direction L of the absorbent article 10.

[0051] As shown in FIG. 6, an information display portion 70 indicating information of the absorbent article may be provided on the non-skin side sheet. The information display portion 70 is a portion that indicates information regarding the absorbent article, such as the size of the absorbent article 10, the usage method (such as the wearing method), characteristics (gentle on the skin, etc.), source information (manufacturer name, product name), and information indicating the position in the entire absorbent article, by characters or designs. The information display portion 70 of the present embodiment includes a first information display portion 71 composed of the character "L" indicating the size of the absorbent article 10 and a design surrounding the character, a second information display portion 72 composed of the character "sarasara ventilation" indicating the characteristics of the absorbent article 10, a third information display portion 73 composed of the character "ABC" indicating the source information and a design surrounding the character, and a fourth information display portion 74 indicating the position of the center in the width direction W of the absorbent article 10. The first information display portion 71 to the third information display portion 73 are spaced apart in the front-rear direction L. According to this configuration, it is easier for the user to recognize each information display portion. Further, the fourth information display portion 74 surrounds the first information display portion 71 to the third information display portion 73. According to this configuration, when the user recognizes one information display portion, it is easier to recognize the other information display portions together.

[0052] The information display portion 70 and the mark portion 80 may be spaced apart in a plan view of the absorbent article 10. According to this embodiment, the user can grasp the information of the absorbent article 10 by the information display portion 70 while positioning the fastening member 90 by the mark portion 80. Since the information display portion and the mark portion are spaced apart, the user can recognize them as separate indications without confusing them. The shortest distance between the information display portion 70 and the mark portion 80 may be 10 mm or more, and preferably 20 mm or more. According to this configuration, the user can more easily distinguish and recognize the information display portion 70 and the mark portion 80. In addition, the information display portion 70 and the mark portion 80 may be attached to the same non-skin side sheet or may be attached to different non-skin side sheets. The information display portion 70 and the mark portion 80 in this embodiment are both attached to the second non-skin side sheet 32.

[0053] When viewed from the non-skin side T2 of the absorbent article 10, the color difference ΔE between the mark surrounding region 85 arranged around the mark portion 80 and the information surrounding region 75 arranged around the information display portion 70 may be 3.0 or less. The mark surrounding region 85 is an area arranged around the mark portion 80, and may be, for example, an area within a range of 10 mm from the outer edge of the mark portion 80. The information surrounding region 75 is an area arranged around the information display portion 70, and may be, for example, an area within a range of 10 mm from the outer edge of the information display portion 70. According to this embodiment, the mark surrounding region 85 around the mark portion 80 and the information surrounding region 75 around the information display portion 70 have a color difference of 3.0 or less, making it easy for a user to recognize these regions as one. Therefore, by integrating the peripheries of the information display portion 70 and the marker portion 80 while still allowing the respective functions of the information display portion 70 and the marker portion 80 to be exerted, the fastening member 90 can be fastened in an appropriate position according to each mode of use without feeling as if the range in which the fastening member 90 can be fastened is restricted.

[0054] Here, the color difference ΔE is measured as follows: (1) Prepare an X-Rite eXact Standard (measurement diameter: 1.5 mm) manufactured by X-Rite. (2) The CIE L*a*b* coordinates of the part of the sample to be measured are measured at 10 or more points at different positions, and the average value ([L1*, a1*, b1*]) is calculated. (3) The L*a*b* coordinates of the parts of the samples to be compared are measured at 10 or more points in different positions, and the average value ([L2*, a2*, b2*]) is calculated. (4) The color difference ΔE is calculated using the following formula:

number

[0055] The mark portion 80 may be arranged at intervals in the width direction W. More specifically, the mark portion 80 may have a first mark portion 81 and a second mark portion 82 located outside the first mark portion 81 in the width direction W. According to this configuration, when determining the fastening position of the fastening member 90, each mark portion indicates the position in the width direction W in stages, making it easier for the user to determine the fastening position in the width direction W. The mark portion 80 may have a larger number of mark portions, and the mark portion 80 of this embodiment has a first mark portion 81, a second mark portion 82 located outside the first mark portion 81 in the width direction W, and a third mark portion 83 located outside the second mark portion 82 in the width direction W. The first mark portion 81 to the third mark portion 83 are disposed on both sides in the width direction W of the fourth information display portion 74, which straddles the article width center 10CW and extends in the front-rear direction. The first mark portion 81, the second mark portion 82, and the third mark portion 83 are spaced apart in the width direction W, but may partially overlap in a modified example.

[0056] Each of the mark portions has an outer mark portion 801 located outside the imaginary mark line EL80 in the front-rear direction, and an inner mark portion 802 located inside the imaginary mark line EL80 in the front-rear direction L. The imaginary mark line EL80 may be a virtual line that is a boundary for changing the design of the mark portion 80. The imaginary mark line EL80 may be located at the center of the mark portion 80 in the front-rear direction L, or may be shifted within a predetermined range (for example, within 10 mm) from the center of the mark portion 80 in the front-rear direction L. The outer mark portion 801 may have an outer inclined portion 87 that extends outward in the front-rear direction L while facing inward in the width direction W, and the inner mark portion 802 may have an inner inclined portion 88 that extends inward in the front-rear direction while facing inward in the width direction W.

[0057] When arranging the first fastening member 91 on the outer mark portion 801, the first fastening member 91 is arranged so that the extending direction 90CL of the first fastening member 91 is perpendicular to the outer inclined portion 87 that extends outward in the front-rear direction L while facing inward in the width direction W, so that the first fastening member 91 can be fastened so as to be inclined inward in the front-rear direction L toward the inside of the width direction W. By arranging the first fastening member 91 so as to match the outer inclined portion 87 of the first mark portion 81 or the outer inclined portion 87 of the second mark portion 82, the first fastening member 91 can be arranged at different positions in the width direction W with a predetermined inclination. In addition, when the second fastening member 92 is disposed on the inner mark portion 802, the second fastening member 92 can be fastened so as to be inclined outward in the front-rear direction L toward the inside of the width direction W by disposing the second fastening member 92 so as to be aligned with the inner inclined portion 88 of the first mark portion 81 or to be aligned with the inner inclined portion 88 of the second mark portion 82, so that the second fastening member 92 can be disposed at different positions in the width direction W with a predetermined inclination. By disposing the fastening members in this manner, the first fastening member 91 located on the outside in the front-rear direction can be disposed so as to be aligned inward in the front-rear direction, and the second fastening member 92 located on the inside in the front-rear direction L can be disposed so as to be aligned outward in the front-rear direction L.

[0058] In this embodiment, the first mark portion 81, the second mark portion 82, and the third mark portion 83 all have an outer inclined portion 87 and an inner inclined portion 88. The outer inclined portion 87 and the inner inclined portion 88 of each mark portion are arranged at a certain interval in the width direction W, and have the same length in the front-rear direction L. In addition, the outer inclined portion 87 and the inner inclined portion 88 of each mark portion may be line-symmetrical with respect to the imaginary mark line EL80. The outer inclined portion 87 and the inner inclined portion 88 may be continuous linear (for example, see the outer inclined portion 87 and the inner inclined portion 88 shown in FIG. 6) or wavy (for example, see the outer design portion and the inner design portion according to the modified example shown in FIG. 7(B)) extending in a predetermined direction, or may be a collection of designs arranged at intervals (for example, see the outer design portion and the inner design portion according to the modified example shown in FIG. 7(C)).

[0059] The outer inclined portion 87 and the inner inclined portion 88 may be connected in the front-rear direction L. According to this embodiment, the user can recognize the outer inclined portion 87 and the inner inclined portion 88 as an integrated mark portion 80, and the fastening members 90 can be arranged in appropriate directions and positions on each inclined portion due to the difference in the inclination directions of the outer inclined portion 87 and the inner inclined portion 88. It is sufficient that at least a part of the outer inclined portion 87 and at least a part of the inner inclined portion 88 are connected. In this embodiment, the outer inclined portion 87 and the inner inclined portion 88 of the first mark portion 81 are connected in the front-rear direction L. On the other hand, the outer inclined portion 87 and the inner inclined portion 88 of the second mark portion 82 and the third mark portion 83 are not connected in the front-rear direction L but are separated from each other.

[0060] Each mark portion may have an order indicating portion 84 indicating the order in the width direction W of the mark portions 80 arranged side by side in the width direction W. The order indicating portion 84 distinguishes the first mark portion 81, the second mark portion 82, and the third mark portion 83, and indicates their order. By the mark portion 80 having the order indicating portion 84, the user can grasp the position in the width direction W of each of the multiple mark portions 80. The order indicating portion 84 may be arranged between the outer inclined portion 87 and the inner inclined portion 88. The user can recognize that the outer inclined portion 87 and the inner inclined portion 88 are each used to fasten different fastening members 90, and can arrange each fastening member 90 on each inclined portion.

[0061] The order display portions 84 in this embodiment are composed of numbers. The first mark portion 81 has an order display portion 84 consisting of the number "1", the second mark portion 82 has an order display portion 84 consisting of the number "2", and the third mark portion 83 has an order display portion 84 consisting of the number "3". The order display portions 84 of each mark portion may be arranged on the same imaginary line extending in the width direction. Also, the order display portions 84 of each mark portion may be arranged on an imaginary mark line EL80 along the width direction W at the center of the mark portion 80 in the front-rear direction L.

[0062] The non-skin side sheet has an auxiliary design portion arranged along the front-to-rear direction L in a region extending inward in the front-to-rear direction L from the marker portion 80. With this configuration, the auxiliary design portion can indicate the front-to-rear direction L of the absorbent article 10. The auxiliary design portion is separated from the marker portion in a plan view of the absorbent article. With this configuration, the user can recognize them as separate indications without confusing the two.

[0063] The auxiliary design portion may have a first auxiliary design portion 77 arranged along the front-rear direction L in a region extending inward in the front-rear direction L from the first mark portion 81, and a second auxiliary design portion 78 arranged along the front-rear direction L in a region extending inward in the front-rear direction L from the second mark portion 82. With this configuration, the front-rear direction L of the absorbent article 10 can be indicated by the first auxiliary design portion 77 and the second auxiliary design portion 78. In addition, since each auxiliary design portion extends inward in the front-rear direction L from the mark portion 80, the positions of the width direction W of the multiple mark portions 80 can be grasped by the auxiliary design portion. Therefore, when determining the fastening position of the fastening member 90, it becomes easier for the user to determine the fastening position in the width direction.

[0064] The auxiliary design of this embodiment includes a first auxiliary design portion 77 arranged along the front-rear direction L in a region extending inward in the front-rear direction L from the first mark portion 81, a second auxiliary design portion 78 arranged along the front-rear direction L in a region extending inward in the front-rear direction L from the second mark portion 82, and a third auxiliary design portion 79 arranged along the front-rear direction in a region extending inward in the front-rear direction from the third mark portion 83. That is, the auxiliary design portions are arranged at intervals in the width direction in correspondence with the respective mark portions arranged at intervals in the width direction. However, it is sufficient that the auxiliary design portions are arranged in a region extending inward in the front-rear direction L from at least one of the mark portions, and they do not have to be arranged corresponding to each mark portion.

[0065] The auxiliary design portion may be a continuous line extending in the front-to-rear direction L (see, for example, the outer inclined portion 87 and the inner inclined portion 88 shown in Figure 6) or a wavy shape (see, for example, the outer design portion and the inner design portion of the modified example shown in Figure 7(B)), or it may be a collection of designs spaced apart (see, for example, the outer design portion and the inner design portion of the modified example shown in Figure 7(C)). The auxiliary design portion and the marker portion 80 may be attached to the same non-skin side sheet, or to different non-skin side sheets. In this embodiment, the auxiliary design portion and the marker portion 80 are both attached to the second non-skin side sheet 32.

[0066] The length in the front-rear direction L of the first auxiliary design portion 77 and the length in the front-rear direction L of the second auxiliary design portion 78 may be longer than the length in the front-rear direction L of each marker portion. Preferably, the length in the front-rear direction L of the first auxiliary design portion 77 and the length in the front-rear direction L of the second auxiliary design portion 78 may be 50% or more of the entire area in the front-rear direction L of the absorbent article 10. According to this embodiment, the front-rear direction L of the absorbent article 10 can be indicated by the auxiliary design portion in a wide range (more than half) of the front-rear direction L of the absorbent article 10, and the absorbent article 10 can be worn while suppressing tilting of the absorbent article 10. In addition, the positions in the width direction W of the multiple marker portions 80 can be indicated by the auxiliary design portion in a wide range (more than half) of the front-rear direction of the absorbent article 10.

[0067] Furthermore, each auxiliary design portion may be disposed across the second waist region S2 and the crotch region S3. Since the auxiliary design portion extends into the crotch region S3, even in situations where the second waist region S2 cannot be directly seen, the user can grasp the widthwise position of the absorbent article 10 and the widthwise position of the corresponding marker portion 80 through the auxiliary design portion in the crotch region S3. Furthermore, each auxiliary design portion may be disposed across the second waist region S2, the crotch region S3, and the first waist region S1. When operating the fastening member 90 in the first waist region S1, the user can recognize the presence of each auxiliary design portion, and it becomes easier to use the auxiliary design portion to perform positioning when performing the fastening operation.

[0068] A plurality of information display sections 70 may be provided. The non-skin side sheet in the region between the first fold FL1 and the outer edge in the front-rear direction L of the first waist region S1 may be provided with the information display section 70 without the marker section 80. The non-skin side sheet in the region between the first fold FL1 and the second fold FL2 may be provided with the information display section 70 without the marker section 80. The non-skin side sheet in the region between the second fold FL2 and the outer edge in the front-rear direction L of the second waist region S2 may be provided with the marker section 80 and the information display section 70. According to this embodiment, the information display section 70 is provided in each of the three regions bounded by the first fold FL1 and the second fold, so that the user can visually recognize the information display section 70 even in the folded state and in the process of unfolding, and can obtain information about the absorbent article 10 through the information display section 70. Furthermore, since the marker portion 80 is provided only on the second waist region S2 side, which is the main region for fastening the fastening member 90, among the three regions, the user can easily intuitively grasp that the marker portion 80 is different from other designs and serves to indicate the position of the fastening member 90. Therefore, even in a form that does not have a target sheet, the user can intuitively position the fastening member using the marker portion.

[0069] The dimensions of the information display section 70 in the region between the second fold FL2 and the outer edge in the front-rear direction L of the second waist region S2 may be larger than the dimensions of the information display section 70 in other regions. The dimensions of the information display section 70 can be compared by the maximum dimensions of the information display section 70, and the maximum dimensions in the width direction W may be compared, or the maximum dimensions in the front-rear direction L may be compared. In a form in which a plurality of information display sections 70 are arranged in each region, the dimensions of the same type of information display section (for example, in this embodiment, the first information display section 71 indicating the size) are compared. In a form in which a plurality of information display sections are integrated, even if the dimensions of the integrated design are the same but the dimensions of some of the information display sections are different, the dimensions of the information display sections 70 are considered to be different. In such a case, the integrated designs are not compared, but the dimensions of some of the information display sections (information display sections with different dimensions) are compared. According to this embodiment, the dimensions of the information display part 70 in the second waist region S2, which is the main region for fastening the fastening member 90, are large, making it easier to grasp the region for fastening the fastening member 90. In addition, the difference in the dimensions of the information display part 70 makes it easier to detect the front-rear position of the non-skin side sheet to which the information display part 70 is attached, and therefore easier to position during manufacturing.

[0070] (3) Marking portion according to modified example Next, the marker portion according to the modified example will be described based on FIG. 7. In the following description of the modified example, the same reference numerals will be used to designate the same components as those in the above-described embodiment, and the description will be omitted. FIG. 7(A) is a diagram showing the marker portion 80X according to the modified example 1. The outer design portion 891 and the inner design portion 892 of the marker portion 80X are linear. FIG. 7(B) is a diagram showing the marker portion 80Y according to the modified example 2. The outer design portion 891 and the inner design portion 892 of the marker portion 80Y are wavy. The outer design portion 891 and the inner design portion 892 of the marker portion 80Z are a collection of multiple designs arranged intermittently.

[0071] The outer marker portion 801 of marker portion 80X, the outer marker portion 801 of marker portion 80Y, and the outer marker portion 801 of marker portion 80Z have an outer design portion 891 that extends inward in the front-to-back direction L while toward the inside in the width direction, and the inner marker portion 802 of marker portion 80X, the inner marker portion 802 of marker portion 80Y, and the inner marker portion 802 of marker portion 80Z have an inner design portion 892 that extends outward in the front-to-back direction while toward the inside in the width direction. According to the embodiment having the marker portions 80X, 80Y, and 80Z configured in this manner, when arranging the first fastening member 91 on the outer marker portion 801, the extension direction 90CL of the first fastening member 91 is arranged along the outer design portion 891 that extends inward in the width direction W while facing inward in the front-to-back direction L, so that the first fastening member 91 can be fastened so as to be inclined inward in the front-to-back direction toward the inside of the width direction. Since the outer design portion 891 extends in the width direction W, by shifting the position where the first fastening member 91 is stopped on that line, the first fastening member 91 can be arranged at a predetermined inclination at different positions in the width direction W. In addition, when arranging the second fastening member 92 on the inner marker portion 802, the extension direction 90CL of the second fastening member 92 is arranged along the inner design portion 892 that extends in the width direction while facing outward in the front-rear direction L, so that the second fastening member 92 can be fastened so as to be inclined outward in the front-rear direction L toward the inside of the width direction. Since the inner design portion 892 also extends in the width direction, the second fastening member 92 can be arranged at a different position in the width direction W with a predetermined inclination by shifting the position where the second fastening member 92 is stopped on that line. By arranging the fastening members in this manner, the first fastening member 91 located on the outside in the front-rear direction can be arranged so as to face the inside in the front-rear direction, and the second fastening member 92 located on the inside in the front-rear direction can be arranged so as to face the outside in the front-rear direction.

[0072] 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]

[0073] 10: Absorbent articles 30: Absorption core 31: First non-skin-side sheet (non-skin-side sheet) 32: Second non-skin side sheet (non-skin side sheet) 35: Skin side sheet 70: Information display section 75: Information surrounding area 77: 1st Assistant Design Department 78: 2nd Assistant Design Department 80, 80X, 80Y, 80Z: Markings 81: First marker section 82: Second marker section 84:Order display section 85: Area around landmark 87:Outside slope 88: Inner slope 801:Outside landmark section 802: Inside marking 891: Exterior Design Department 892: Interior Design Department 90: Fastening member 90CL:Extension direction 91: First fastening member 92: Second fastening member EL80: Virtual line marker FL1: First fold FL2: Second fold L: Anteroposterior direction S1: First waist area S2: Second waist area S3: Inseam area T: Thickness direction T1: Skin side T2: Non-skin side W: Width direction

Claims

1. A front-rear direction and a width direction perpendicular to each other; a crotch region including a center in the front-to-rear direction, a first waist region located on one side of the crotch region in the front-to-rear direction, and a second waist region located on the other side of the crotch region in the front-to-rear direction; an absorbent core disposed at least in the crotch region and the second waist region; a non-skin-side sheet disposed on the non-skin side of the absorbent core over the entire core-arrangement region in which the absorbent core is arranged; a fastening member extending outward in the width direction in the first waist region and fastened to a non-skin side surface of the non-skin side sheet in the second waist region, The non-skin side sheet in the second waist region is provided with a marker portion for indicating a fastening position of the fastening member, in an absorbent article.

2. the non-skin side sheet has a first non-skin side sheet disposed on a non-skin side surface of the absorbent article, and a second non-skin side sheet disposed between the first non-skin side sheet and the absorbent core, The absorbent article according to claim 1 , wherein the mark portion is disposed on the second non-skin side sheet.

3. the non-skin side sheet has a first non-skin side sheet disposed on a non-skin side surface of the absorbent article, and a second non-skin side sheet disposed between the first non-skin side sheet and the absorbent core, The absorbent article according to claim 1 , wherein the mark portion is disposed on the first non-skin side sheet.

4. the non-skin side sheet has a first non-skin side sheet disposed on a non-skin side surface of the absorbent article, and a second non-skin side sheet disposed between the first non-skin side sheet and the absorbent core, 4. The absorbent article according to claim 1, wherein after the operation of attaching the fastening member to the first non-skin side sheet and peeling off the fastening member is repeated five times, the fastening strength of the fastening member when attached to the first non-skin side sheet is 0.7 N or more.

5. The fastening member includes a first fastening member and a second fastening member located inside the first fastening member in the front-rear direction, The absorbent article according to claim 1 , wherein a length of the mark portion in the front-rear direction is longer than a distance between the first fastening member and the second fastening member.

6. The absorbent article according to claim 1 , wherein the length in the front-to-rear direction of the non-skin side sheet on which the marker portion is provided is at least 2.0 times the length in the front-to-rear direction of the marker portion.

7. The absorbent article according to claim 6 , wherein the non-skin side sheet provided with the marking portion is disposed over the entire area of ​​the absorbent article in the front-rear direction.

8. the non-skin side sheet is provided with an information display section that displays information about the absorbent article, The absorbent article according to claim 1 , wherein the information display portion and the mark portion are spaced apart from each other in a plan view of the absorbent article.

9. The absorbent article of claim 8, wherein when viewed from the non-skin side of the absorbent article, the color difference ΔE between the mark surrounding area arranged around the mark portion and the information surrounding area arranged around the information display portion is 3.0 or less.

10. the non-skin side sheet has an auxiliary design portion disposed along the front-rear direction in a region extending inward in the front-rear direction from the mark portion, The absorbent article according to claim 1 , wherein the auxiliary design portion is spaced apart from the mark portion in a plan view of the absorbent article.

11. The mark portion includes a first mark portion and a second mark portion arranged at an interval in the width direction, The second mark portion is located outboard of the first mark portion in the width direction, The absorbent article of claim 10, wherein the auxiliary design portion has a first auxiliary design portion arranged in a region extending inward in the front-to-back direction from the first marker portion, and a second auxiliary design portion arranged in a region extending inward in the front-to-back direction from the second marker portion.

12. The absorbent article according to claim 10, wherein the length of the auxiliary design portion in the front-to-back direction is 50% or more of the entire area of ​​the absorbent article in the front-to-back direction.

13. Before use, the absorbent article is folded about a first fold extending in the width direction on a first waist region side from a center in the front-rear direction of the absorbent article, and a second fold extending in the width direction on a second waist region side from a center in the front-rear direction of the absorbent article, the non-skin side sheet is provided with a plurality of information display sections that display information about the absorbent article, the non-skin side sheet in a region between the first fold and an outer edge in the front-rear direction of the first waist region is provided with the information display portion, but not with the marker portion; the non-skin side sheet in the region between the first fold and the second fold is provided with the information display portion, but not with the mark portion; the mark portion and the information display portion are provided on the non-skin side sheet in a region between the second fold and an outer edge of the second waist region in the front-rear direction, 4. The absorbent article according to claim 1, wherein a dimension of the information display portion in the region between the second fold and the outer edge of the second waist region in the front-to-rear direction is larger than a dimension of the information display portion in other regions.

14. The fastening member includes a first fastening member and a second fastening member located inside the first fastening member in the front-rear direction, The mark portion includes a first mark portion and a second mark portion arranged at an interval in the width direction, The second mark portion is located outboard of the first mark portion in the width direction, The first mark portion and the second mark portion each have an outer mark portion located outside the front-rear direction of a mark imaginary line along the width direction at a center portion of the mark portion in the front-rear direction, and an inner mark portion located inside the front-rear direction of the mark imaginary line, The outer marker portion has an outer inclined portion extending inward in the width direction and outward in the front-rear direction, The absorbent article according to claim 1 , wherein the inner marker portion has an inner inclined portion extending inward in the front-rear direction while facing inward in the width direction.

15. The absorbent article according to claim 14 , wherein the outer inclined portion and the inner inclined portion are continuous in the front-to-rear direction.

16. The absorbent article according to claim 14 , wherein the marker portion has an order indicating portion between the outer inclined portion and the inner inclined portion that indicates an order of the marker portions in the width direction.

17. The fastening member includes a first fastening member and a second fastening member arranged at an interval in the front-rear direction, The marker portion has an outer marker portion located outside the front-rear direction from a marker imaginary line extending in the width direction at a center portion of the marker portion in the front-rear direction, and an inner marker portion located inside the marker imaginary line in the front-rear direction, The outer marker portion has an outer design portion extending inward in the front-rear direction and inward in the width direction, The absorbent article according to claim 1 , wherein the inner marker portion has an inner design portion that extends outward in the front-rear direction and inward in the width direction.

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