Underpants type absorbent article and underpants type absorbent article kit

Asymmetrically designed pants-type absorbent items with distinct tab configurations address the challenge of confusing wearing procedures by clearly differentiating between tape-type and pants-type applications, improving wearability.

JP2025011714APending Publication Date: 2025-01-24UNI CHARM CORP
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Patent Information

Application Number
JP2023113986
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-07-11
Publication Date
2025-01-24

AI Technical Summary

Technical Problem

Existing pants-type absorbent items, such as disposable diapers, have a symmetrical shape that makes it difficult for wearers to recognize and differentiate between the procedures for wearing them in a tape-type and pants-type configurations, leading to confusion during application.

Method used

The absorbent items are designed with asymmetric shapes and distinct tab configurations that visually differentiate between left and right sides, featuring unique lengths and positions of tabs and separation lines to facilitate easy recognition of the correct wearing procedure.

Benefits of technology

The asymmetric design allows wearers to easily distinguish and follow different wearing procedures for tape-type and pants-type configurations, enhancing wearability and reducing confusion.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide an underpants type absorbent article when the pants-type absorbent article is worn, allowing a wearer, etc. to recognize that it is preferable to wear it in different procedures on one side and the other side in a right-left direction of the article.SOLUTION: An underpants type absorbent article (1) comprises an annular waistline part (20), one side engaging member (30a) including one side engaging portion (32a), and the other side engaging member (30b) including the other side engaging portion (32b), where the waistline part (20) includes a pair of separation portions for separating a front waistline portion and a back waistline portion. The one side engaging member (30a) is fixed to the waistline portion (20) at one side fixing portion (35a), and the other side engaging member (30b) is fixed to the waistline portion at the other side fixing portion (35b). In the extended state, a length from one end (30be) of the other-side engaging member (30b) to one end (35bu) of the other-side fixing portion (35b) in the left-right direction is different from a length from the other end (30ae) of the one side engaging member (30a) to the other end (35au) of the one side fixing portion (35a) in the left-right direction.SELECTED DRAWING: Figure 10
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Description

[Technical field]

[0001] The present invention relates to a pant-type absorbent article and a kit for the pant-type absorbent article. [Background technology]

[0002] There is known a pants-type absorbent article that can be used as a tape-type (unfolded type) by cutting off a part of the waistband member of the pants-type absorbent article. For example, Patent Document 1 discloses a pants-type disposable diaper that can be opened like a double door by providing a pair of break guide lines on the ventral side of the exterior body and cutting the exterior body along the break guide lines. This pants-type disposable diaper is a dual-use disposable diaper that can also be used as a tape-type diaper by using a fastening tape that is pulled out after opening. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2010-131197 A Summary of the Invention [Problem to be solved by the invention]

[0004] When wearing a pants-type disposable diaper as in Patent Document 1 in a tape-type state in which the outer body is cut at a pair of breakage guide lines, first, one of the front body openable parts in the left-right direction is lightly grasped so that one leg of the wearer is inserted through the leg opening, and the fastening tape of the front body openable part is fastened to the front body non-openable part. Then, it is preferable to fasten the fastening tape of the front body openable part to the front body non-openable part so as to align it with the wearer's waist while pulling the other front body openable part in the left-right direction so that the other leg of the wearer is inserted through the leg opening. In other words, when wearing in a tape-type state, it is preferable to wear it in a different order on both sides in the left-right direction. However, the disposable diaper in Patent Document 1 has a left-right symmetrical shape when in the pants-type state, which means that when the diaper is in the tape-type state, it is difficult for the wearer to recognize that the procedure for putting on the diaper is different on one side and the other side in the left-right direction.

[0005] The present invention has been made in consideration of the above-mentioned problems, and its object is to provide a pants-type absorbent article that makes it easy for the wearer to recognize that it is preferable to wear the article in different procedures on one side and the other side in the left-right direction when wearing the article. [Means for solving the problem]

[0006] The main invention for achieving the above object is a pants-type absorbent article having an annular waist portion having a vertical direction, a horizontal direction, and a front-rear direction which intersect with each other, a one-side engaging member provided on one side in the horizontal direction and having a one-side engaging portion which releasably engages with the waist portion, and a other-side engaging member provided on the other side in the horizontal direction and having a other-side engaging portion which releasably engages with the waist portion, the waist portion having a pair of separation portions for separating the annular waist portion into a front waist portion and a rear waist portion, and the one-side engaging member is fixed to the waist portion by a one-side fixing portion. the other-side engaging member is fixed to the waist portion by the other-side fixing portion, in the one-side engaging member, the one-side engaging portion is located on the other side in the left-right direction of the one-side fixing portion, and in the other-side engaging member, the other-side engaging portion is located on one side in the left-right direction of the other-side fixing portion, and in an extended state, the length in the left-right direction from the other end of the one-side engaging member to the other end of the one-side fixing portion is different from the length from one end of the other-side engaging member to one end of the other-side fixing portion. Other features of the present invention will become apparent from the following detailed description of the present invention and the accompanying drawings. Effect of the Invention

[0007] According to the present invention, a pants-type absorbent article can be provided that makes it easy for the wearer to recognize that it is preferable to put on the article in different steps on one side and the other side in the left-right direction of the pants-type absorbent article. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic perspective view of a napkin 1. [Diagram 2] FIG. 2 is a schematic plan view of a napkin 1 in an unfolded and extended state, as viewed from the skin side in the thickness direction. [Diagram 3] FIG. 3 is a schematic cross-sectional view of the line AA in FIG. 2. [Figure 4] 4A and 4B are schematic cross-sectional views of the napkin 1 as viewed from the waist-opening 1a side. [Diagram 5] 2 is a developed plan view of the napkin 1 in a state in which the front waistline portion 20fA is separated from the rear waistline portion 20bA along a cutting line 26. FIG. [Figure 6] 6A to 6C are diagrams illustrating an example of a method for a wearer to wear the napkin 1. FIG. [Figure 7] 7A to 7D are diagrams illustrating an example of a method for a wearer to wear the napkin 1. FIG. [Figure 8] Fig. 8A is a schematic perspective view of the package 100. Fig. 8B is a diagram illustrating the napkin 1 in an initial state. [Figure 9] FIG. 2 is a plan view of the napkin 1 in an initial state, as seen from the front. [Figure 10] FIG. 10 is a diagram showing the napkin 1 shown in FIG. 9 in an expanded state. [Figure 11] FIG. 13 is a diagram showing a wearing method display 80. [Figure 12] FIG. 13 is a diagram showing a stretched state of the napkin 2 of the second embodiment. [Figure 13] FIG. 13 is a diagram showing a modified example of the present embodiment. [Figure 14] FIG. 13 is a diagram showing a modified example of the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] At least the following points will become apparent from the description of this specification and the accompanying drawings. (Aspect 1) a pair of separating portions for separating the annular waist portion into a front waist portion and a rear waist portion, the one-side engaging member being provided on one side in the left-right direction and having a one-side engaging portion that removably engages with the waist portion, and the other-side engaging member being provided on the other side in the left-right direction and having a other-side engaging portion that removably engages with the waist portion, the waist portion having a pair of separating portions for separating the annular waist portion into a front waist portion and a rear waist portion, the one-side engaging member being fixed to the waist portion by a one-side fixing portion, and the other-side engaging member being fixed to the waist portion by a one-side fixing portion. The joint member is fixed to the waist portion by the other-side fixing portion, and in the one-side engaging member, the one-side engaging portion is located on the other side in the left-right direction of the one-side fixing portion, and in the other-side engaging member, the other-side engaging portion is located on one side in the left-right direction of the other-side fixing portion, and in an extended state, the length in the left-right direction from the other end of the one-side engaging member to the other end of the one-side fixing portion is different from the length from one end of the other-side engaging member to one end of the other-side fixing portion.

[0010] According to aspect 1, since the pant-type absorbent article has an asymmetric shape with respect to the center in the left-right direction when stretched, it is easy for the wearer to recognize that it is preferable to wear the pant-type absorbent article in a different order on one side and the other side in the left-right direction when wearing it.

[0011] (Aspect 2) A pants-type absorbent article having an annular waist portion having a top-bottom direction, a left-right direction, and a front-rear direction which intersect with each other, a one-side engaging member provided on one side in the left-right direction and having a one-side engaging portion which removably engages with the waist portion, and a other-side engaging member provided on the other side in the left-right direction and having a other-side engaging portion which removably engages with the waist portion, the waist portion having a pair of separation portions for separating the annular waist portion into a front waist portion and a rear waist portion, the front waist portion having a front stretchable region which is stretchable in the left-right direction, and the one-side engaging member is fixed to the waist portion by a one-side fixing portion. the other-side engaging member is fixed to the waist portion by the other-side fixing portion, in the one-side engaging member, the one-side engaging portion is located on the other side in the left-right direction of the one-side fixing portion, and in the other-side engaging member, the other-side engaging portion is located on one side in the left-right direction of the other-side fixing portion, and in an extended state, the distance from the center in the left-right direction of the pant-type absorbent article to the one side end in the left-right direction of the front stretchable region is different from the distance from the center in the left-right direction of the pant-type absorbent article to the other side end in the left-right direction of the front stretchable region.

[0012] According to aspect 2, since the pant-type absorbent article has an asymmetric shape with respect to the center in the left-right direction when stretched, it is easy for the wearer to recognize that when wearing the pant-type absorbent article, it is preferable to wear it in a different order on one side and the other side in the left-right direction.

[0013] (Aspect 3) This is a pants-type absorbent article according to aspect 1 or 2, in which, in an extended state, the length in the left-right direction from the center of the one-side engagement portion to the other-side end of the one-side fixed portion is different from the length in the left-right direction from the center of the other-side engagement portion to the one-side end of the other-side fixed portion.

[0014] According to aspect 3, it becomes easier for the wearer to recognize that the pants-type absorbent article has an asymmetric shape with respect to the center in the left-right direction, and it becomes easier for the wearer to recognize that it is preferable to wear the pants-type absorbent article in different steps on one side and the other side in the left-right direction.

[0015] (Aspect 4) The front waist portion has a front stretchable region that is stretchable in the left-right direction, and the pair of separation portions has a one-side separation portion provided on one side in the left-right direction and an other-side separation portion provided on the other side in the left-right direction, and in a stretched state, the length in the left-right direction from the one-side end of the front stretchable region to the one-side separation portion and the length in the left-right direction from the other-side end of the front stretchable region to the other-side separation portion are different.This is a pants-type absorbent article described in any of aspects 1 to 3.

[0016] According to aspect 4, when separating the pant-type absorbent article into the front waist portion and the rear waist portion, it becomes easier for the wearer to recognize that the pant-type absorbent article has an asymmetric shape with respect to the center in the left-right direction, and it becomes easier for the wearer to recognize that it is preferable to wear the pant-type absorbent article in different procedures on one side and the other side in the left-right direction.

[0017] (Aspect 5) A pants-type absorbent article as described in any of aspects 1 to 4, which has an absorbent main body having an absorbent core, the pair of separation portions having a one-side separation portion provided on one side in the left-right direction and an other-side separation portion provided on the other side in the left-right direction, and in a stretched state, the length from the center of the absorbent main body in the left-right direction to the one-side separation portion and the length from the center of the absorbent main body in the left-right direction to the other-side separation portion are different.

[0018] According to aspect 5, when worn, a pair of separation parts are provided in asymmetric positions with respect to the left-right center of the absorbent main body which is placed in the left-right center of the wearer's body. This makes it easier for the wearer, etc. to recognize that when the pant-type absorbent article is separated into a front waist part and a rear waist part, the pant-type absorbent article has an asymmetric shape with respect to the left-right center, and makes it easier for the wearer, etc. to recognize that it is preferable to wear the pant-type absorbent article in different procedures on one side and the other side in the left-right direction.

[0019] (Aspect 6) The annular waist portion has a pair of joints at which both side ends of a front member and a rear member are joined, the front member constituting at least a part of the front waist portion, and the rear member constituting at least a part of the rear waist portion, and in a stretched state, the length from one end of the front member to one end of the one-side fixed portion and the length from the other end of the front member to the other end of the other-side fixed portion in the left-right direction are different.This is a pants-type absorbent article as described in any of aspects 1 to 5.

[0020] According to aspect 6, it becomes easier for the wearer to recognize that the pants-type absorbent article has an asymmetric shape with respect to the center in the left-right direction, and it becomes easier for the wearer to recognize that when wearing the pants-type absorbent article, it is preferable to wear it in a different order on one side and the other side in the left-right direction.

[0021] (Aspect 7) In the pants-type absorbent article according to any one of aspects 1 to 6, in a stretched state, the area of ​​the one-side engaging member and the area of ​​the other-side engaging member are different.

[0022] According to aspect 7, by visually identifying the different sizes of the one-side engaging member and the other-side engaging member, it becomes easier for the wearer to recognize that the pant-type absorbent article has an asymmetric shape with respect to the center in the left-right direction, and it becomes easier for the wearer to recognize that when wearing the pant-type absorbent article, it is preferable to wear it in different steps on one side and the other side in the left-right direction.

[0023] (Aspect 8) In the pants-type absorbent article according to any one of Aspects 1 to 7, the one-side engaging member and the other-side engaging member have different shapes.

[0024] According to aspect 8, by visually recognizing the different shapes of the one-side engaging member and the other-side engaging member, it becomes easier for the wearer to recognize that the pant-type absorbent article has an asymmetric shape with respect to the center in the left-right direction, and it becomes easier for the wearer to recognize that when wearing the pant-type absorbent article, it is preferable to wear it in different steps on one side and the other side in the left-right direction.

[0025] (Aspect 9) In the pants-type absorbent article according to any one of aspects 1 to 8, the one-side engagement portion has a side end along the vertical direction, and in a stretched state, the side end is inclined with respect to the vertical direction.

[0026] According to aspect 9, it becomes easier for the wearer to recognize that the pants-type absorbent article has an asymmetric shape with respect to the center in the left-right direction, and it becomes easier for the wearer to recognize that when wearing the pants-type absorbent article, it is preferable to wear it in a different order on one side of the left-right direction from the other side.

[0027] (Aspect 10) A pants-type absorbent article according to any one of aspects 1 to 9, wherein in a stretched state, a lower end of the one-side engaging portion and a lower end of the other-side engaging portion are provided at different positions in the up-down direction.

[0028] According to aspect 10, it becomes easier for the wearer to recognize that the pants-type absorbent article has an asymmetric shape with respect to the center in the left-right direction, and it becomes easier for the wearer to recognize that when wearing the pants-type absorbent article, it is preferable to wear it in a different order on one side and the other side in the left-right direction.

[0029] (Aspect 11) In the pants-type absorbent article according to any one of Aspects 1 to 10, a pattern is provided on the one engaging member.

[0030] According to the eleventh aspect, it becomes easier for the wearer to recognize the one-side engaging member, reducing the time and effort required to search for the one-side engaging member, and making it easier to encourage the wearer to wear the pants-type absorbent article correctly.

[0031] (Aspect 12) The front waist portion has a front stretchable region that is stretchable in the left-right direction, and in a stretched state, when viewed in the front-to-rear direction, the one-side engagement portion has a portion that overlaps with the front stretchable region, and the other-side engagement portion does not have a portion that overlaps with the front stretchable region. This is a pants-type absorbent article described in any of aspects 1 to 11.

[0032] According to aspect 12, it becomes easier for the wearer to recognize that the pants-type absorbent article has an asymmetric shape with respect to the center in the left-right direction, and it becomes easier for the wearer to recognize that when wearing the pants-type absorbent article, it is preferable to wear it in a different order on one side and the other side in the left-right direction.

[0033] (Aspect 13) The pair of separation portions has a one-side separation portion provided on one side in the left-right direction and an other-side separation portion provided on the other side in the left-right direction, and in an extended state, when viewed in the front-to-rear direction, the one-side engagement portion does not overlap with the one-side separation portion, and the other-side engagement portion has a portion that overlaps with the other-side separation portion, which is a pants-type absorbent article described in any of aspects 1 to 12.

[0034] According to aspect 13, it becomes easier for the wearer to recognize that the pants-type absorbent article has an asymmetric shape with respect to the center in the left-right direction, and it becomes easier for the wearer to recognize that when wearing the pants-type absorbent article, it is preferable to wear it in a different order on one side and the other side in the left-right direction.

[0035] (Aspect 14) A pant-type absorbent article kit comprising a pant-type absorbent article according to any one of aspects 1 to 13 and an indication explaining how to wear the pant-type absorbent article, wherein the pant-type absorbent article has a waist opening and a pair of leg openings, and the indication indicates a method of wearing the pant-type absorbent article, in which one leg of a wearer is inserted through the leg opening on one side in the left-right direction, and then the other-side engagement portion is engaged with the waist portion to connect the front waist portion and the rear waist portion separated by the separation portion, and then the other leg of the wearer is inserted through the leg opening on the other side in the left-right direction.

[0036] According to aspect 14, when wearing a pants-type absorbent article having an asymmetric shape with respect to the center in the left-right direction, it is easy to encourage the wearer to wear the article by first passing one of the wearer's legs through the leg opening on one side of the pants-type absorbent article in the left-right direction, and then passing the wearer's other leg through the leg opening on the other side in the left-right direction.

[0037] (Aspect 15) The pant-type absorbent article is a pant-type absorbent article kit as described in aspect 14, wherein the front waist portion has a front stretchable region that is stretchable in the left-right direction, and the distance from the center of the pant-type absorbent article in the left-right direction to the one-side end of the front stretchable region in the left-right direction is longer than the distance from the center of the pant-type absorbent article in the left-right direction to the other-side end of the front stretchable region in the left-right direction.

[0038] According to the fifteenth aspect, it is easy to encourage the wearer to wear the pants-type absorbent article in a different procedure for one side in the left-right direction and the other side. In addition, when wearing a pants-type absorbent article in which the front waist portion on one side in the left-right direction is easier to stretch than the front waist portion on the other side in the left-right direction, by providing an indication showing a wearing method starting from one side in the left-right direction, the wearer can first put one leg of the wearer through the leg opening on one side in the left-right direction with a small force on one side in the left-right direction of the front waist portion that is easier to stretch, and then, on the other side in the left-right direction, engage the other side engagement portion with the waist portion while pulling the front waist portion that is less stretchable, so that it is easy to engage the waist portion at an appropriate position.

[0039] ===First embodiment=== As an example of a pants-type absorbent article according to the first embodiment, a pants-type (shorts-type) napkin 1 (hereinafter, also referred to as napkin 1) will be described. Note that pants-type absorbent articles also include pants-type diapers and pants-type absorbent pads.

[0040] <<<Basic structure of Sanitary Napkin 1>>> Fig. 1 is a schematic perspective view of a napkin 1. Fig. 2 is a schematic plan view of the napkin 1 in an unfolded and extended state, as viewed from the skin side in the thickness direction. Fig. 3 is a schematic cross-sectional view taken along line AA in Fig. 2.

[0041] As shown in FIG. 1, the napkin 1 has a "vertical direction", a "left-right direction", and a "front-rear direction" that intersect (are perpendicular to) each other. Also, as shown in FIG. 3, the napkin 1 has a "thickness direction" in which each member is laminated. In the vertical direction, the side that is on the upper side of the wearer when the wearer wears the napkin 1 is referred to as the "waist side" or "upper side", and the side that is on the lower side of the wearer is referred to as the "crotch side" or "lower side". In the front-rear direction, the side that is on the stomach side of the wearer when worn is referred to as the "front side", and the side that is on the back side of the wearer is referred to as the "rear side". In the thickness direction, the side that comes into contact with the wearer's skin when the wearer wears the napkin 1 is referred to as the "skin side", and the opposite side is referred to as the "non-skin side". Furthermore, in the left-right direction, in this embodiment, the left side of the wearer when worn is referred to as the "one side" (the left side in FIG. 1, the right side in FIG. 2), and the right side of the wearer when worn is referred to as the "other side" (the right side in FIG. 1, the left side in FIG. 2). A center line CC shown in FIG. 2 etc. indicates the center of the napkin 1 in the left-right direction, and a center line CL indicates the center of the napkin 1 in the longitudinal direction in the unfolded state.

[0042] The napkin 1 of this embodiment comprises an absorbent main body 10 that absorbs excretory liquid such as menstrual blood, an annular waist portion 20 arranged overlapping the absorbent main body 10 in the front-rear direction (arranged on the non-skin side of the absorbent main body 10 in this embodiment), and a pair of tabs 30 provided on both sides in the left-right direction of the waist portion 20. The waist portion 20 comprises a front member 20f and a rear member 20b. The front member 20f constitutes at least a part of a front waist portion 20fA described below, and the rear member 20b constitutes at least a part of a rear waist portion 20bA described below.

[0043] The unfolded state of the napkin 1 shown in FIG. 2 is a state in which a pair of side joints 40 provided on both sides of the napkin 1 in the left-right direction are separated, and the napkin 1 is opened and unfolded in a plane. In other words, the napkin 1 is folded in two in the front-rear direction at a center position CL (folded in two F) in the up-down direction from the unfolded state shown in FIG. 2, and both sides in the left-right direction of the front member 20f and the rear member 20b are joined at a pair of side joints (joints) 40 to form a pants-type napkin. The joining method for the side joints 40 includes well-known joining methods such as thermal welding and ultrasonic welding. The side joints 40 include a one-side joint 40a located on one side in the left-right direction and an other-side joint 40b located on the other side in the left-right direction. In the pants-type napkin 1 (FIG. 1), the waist part 20 (the front member 20f and the rear member 20b) are connected in a ring shape, and one waist opening 1a and a pair of leg openings 1b are formed.

[0044] The stretched state of the napkin 1 refers to a state in which the elastic members of the napkin 1 are stretched to the extent that wrinkles in the napkin 1 are no longer visible. Specifically, it refers to a state in which each member constituting the napkin 1 is stretched until the dimensions of that member alone are equal to or close to the dimensions of that member (i.e., the dimensions when the elastic properties of the elastic members are not expressed).

[0045] (Absorbent body 10) As shown in Fig. 2, the absorbent main body 10 is a member having a rectangular shape in a plan view, the longitudinal direction of which is aligned with the up-down direction of the napkin 1. As shown in Fig. 3, the absorbent main body 10 has an absorbent core 11, a top sheet 12 arranged closer to the skin than the absorbent core 11, and a back sheet 13 arranged closer to the skin than the absorbent core 11. However, the absorbent main body 10 may have sheet members other than these. For example, a second sheet (not shown) may be provided between the top sheet 12 and the absorbent core 11 in the thickness direction.

[0046] The absorbent core 11 is a member that absorbs and retains liquids such as menstrual blood, and is formed of liquid-absorbent fibers such as pulp fibers mixed with superabsorbent polymer (SAP). The outer peripheral surface of the absorbent core 11 may be covered with a liquid-permeable sheet member (core wrap sheet) such as tissue paper or nonwoven fabric.

[0047] The top sheet 12 is a liquid-permeable sheet member that can come into contact with the wearer's skin when worn, and is formed, for example, from a hydrophilic air-through nonwoven fabric or a spunbond nonwoven fabric.

[0048] The back sheet 13 is formed in a two-layer structure including a liquid-impermeable sheet 13a for preventing liquid such as menstrual blood absorbed in the absorbent core 11 from leaking out to the outside, and a hydrophobic sheet 13b arranged on the non-skin side of the liquid-impermeable sheet 13a. For example, a resin film is used as the liquid-impermeable sheet 13a, and for example, a flexible nonwoven fabric is used as the hydrophobic sheet 13b. However, the hydrophobic sheet 13b is not necessarily provided, and the back sheet 13 may be composed of only the liquid-impermeable sheet 13a.

[0049] The absorbent main body 10 also has leakage prevention walls 14 that can stand up on the skin side on both left and right sides. For example, both left and right sides of the hydrophobic sheet 13b are folded inward in the left and right direction so as to be positioned on the skin side of the top sheet 12, and a leakage prevention wall elastic member 141 (e.g., rubber thread) that stretches in the longitudinal direction is provided at the folded-back portions, thereby forming the leakage prevention walls 14. The leakage prevention walls 14 can suppress lateral leakage of excreted liquid. However, the leakage prevention walls 14 do not necessarily have to be provided in the absorbent main body 10.

[0050] As shown in Fig. 2, the absorbent body 10 has a plurality of absorbent body elastic members 15 that stretch along its longitudinal direction. The absorbent body elastic members 15 are made of, for example, rubber thread, and are arranged in a longitudinally stretched state on the non-skin side of the liquid impermeable sheet 13a located on the non-skin side of the absorbent core 11 (between the liquid impermeable sheet 13a and the hydrophobic sheet 13b in Fig. 3). In the napkin 1 of this embodiment, five absorbent body elastic members 15 are provided at predetermined intervals in the width direction. The absorbent body elastic members 15 make it easier for the absorbent body 10 to come into close contact with the crotch part (vaginal opening) of the wearer, thereby suppressing leakage of excreted liquid.

[0051] (Waist circumference 20) The waistband portion 20 is an exterior body composed of a plurality of sheet members, and includes at least a non-skin side sheet 21 and skin side sheets 22, 23 (see FIG. 3). In the following description, when the napkin 1 (FIG. 2) in an unfolded state is divided into two at a vertical center position CL, a portion located in front of the center position CL and overlapping with the side joint portion 40 in the vertical direction is referred to as a "front member 20f," and a portion below the front member 20f (on the crotch side) is referred to as a "front extension portion 20fe." Similarly, a portion located behind the center position CL and overlapping with the side joint portion 40 in the vertical direction is referred to as a "rear member 20b," and a portion below the rear extension portion 20be is referred to as a "rear extension portion 20be."

[0052] The non-skin side sheet 21 is a non-elastic sheet member arranged on the closest side to the skin of the napkin 1, and is made of, for example, a spunbond nonwoven fabric, an SMS nonwoven fabric, etc. As shown in Fig. 2, the non-skin side sheet 21 of this embodiment has a shape that is narrowed inward in the left-right direction at the central part in the up-down direction.

[0053] The skin side sheets 22, 23 are non-elastic sheet members laminated on the skin side of the non-skin side sheet 21, respectively, on the front and rear sides of the waistband portion 20. Like the non-skin side sheet 21, the skin side sheets 22, 23 are formed from, for example, a spunbond nonwoven fabric or an SMS nonwoven fabric.

[0054] A plurality of front waistline elastic members 24f, such as rubber threads, which stretch in the left-right direction, are arranged at intervals in the up-down direction between the non-skin side sheet 21 and the skin side sheet 22. The front waistline elastic members 24f impart stretchability to the front member 20f. A plurality of rear waistline elastic members 24b, such as rubber threads, which stretch in the left-right direction, are arranged at intervals in the up-down direction between the non-skin side sheet 21 and the skin side sheet 23. The rear waistline elastic members 24b impart stretchability to the rear member 20b.

[0055] The waist elastic members 24f, 24b can be attached using an adhesive such as a hot melt adhesive. For example, the waist elastic members 24f, 24b can be attached by applying a hot melt adhesive to each of the waist elastic members 24f, 24b, stretching them at a predetermined stretch ratio, and sandwiching them between the non-skin side sheet 21 and the skin side sheets 22, 23. In this way, the non-skin side sheet 21 and the skin side sheets 22, 23 are bonded by the adhesive via the waist elastic members 24f, 24b.

[0056] The front member 20f has a front stretchable region 20EA in which waist elastic members 24f are provided, and the front member 20f stretches in the left-right direction in the front stretchable region EA. The front member 20f also has front non-stretchable regions 20NA on both left-right outer sides of the front stretchable region 20EA (on the sides where the tabs 30 are provided).

[0057] The front elasticated region 20EA of the napkin 1 is provided continuously from the end EAa on the most one side to the end EAb on the most other side in the left-right direction of the front elasticated region 20EA. The front elasticated region 20EA refers to the region from the end EAa on one side of the waistline elastic member 24f located on the most one side in the left-right direction among the multiple waistline elastic members 24f to the end EAb on the other side of the waistline elastic member 24f located on the most other side in the left-right direction. Note that in the front elasticated region 20EA, the waistline elastic members 24f do not necessarily need to be continuous from one side to the other side in the left-right direction. The waistline elastic members 24f may be provided intermittently in the left-right direction.

[0058] The rear member 20b has a rear stretchable region 20EB in which the rear elastic members 24b are provided, and the rear member 20b stretches in the left-right direction in the rear stretchable region EB. The rear stretchable region 20EB is a continuous region from the other end of the one-side joint portion 40a in the left-right direction to the one end of the other-side joint portion 40b. As with the front member 20f, the rear elastic members 24b may be provided intermittently in the left-right direction.

[0059] In addition, it is preferable to provide the rear extension 20be with a leg elastic member 25 (e.g., rubber thread) that stretches along the leg openings 1b. The leg elastic member 25 causes the rear extension 20be to contract in the left-right and up-down directions. This makes it easier for the leg openings 1b, 1b to fit the legs of the wearer.

[0060] Note that sheet members constituting the waistband portion 20 may include sheet members other than the non-skin side sheet 21 and the skin side sheets 22, 23. For example, the waistband portion 20 may have a three-layer structure in which a nonwoven fabric sheet is disposed on the skin side of the skin side sheets 22, 23. The non-skin side sheet 21 may be separated between the front side and the rear side. In that case, the non-skin side of the back sheet 13 may be exposed between the front side non-skin side sheet 21 and the rear side non-skin side sheet 21, or a separate non-skin side sheet connecting the front side non-skin side sheet 21 and the rear side non-skin side sheet 21 may be provided in the crotch portion.

[0061] Furthermore, the front member 20f of the napkin 1 has a tear line (separation portion) 26 (e.g., a perforation) having a length in the up-down direction at the left-right end. The tear line 26 has a one-side tear line 26a provided on one side in the left-right direction and an other-side tear line 26b provided on the other side in the left-right direction. The tear line 26 allows the wearer to easily tear the front member 20f.

[0062] In this embodiment, the cut line 26 is provided over the entire area of ​​the front member 20f in the vertical direction, but the cut line 26 may be provided only on a part of the front member 20f in the vertical direction. The cut line 26 is not limited to a straight line along the vertical direction as shown in the stretched napkin 1 (FIG. 2), but may be a straight line or a curved line inclined with respect to the vertical direction. The cut line 26 is preferably one that makes it easy to tear the front member 20f in the vertical direction, and may be a notch or the like provided at the end of the front member 20f on the waist side or the end of the crotch side. The cut line 26 is not limited to a perforation or a notch, and may be only an indication indicating the cutting position.

[0063] Furthermore, the front member 20f of the napkin 1 of this embodiment is provided with a substantially rectangular compressed area E having a length in the up-down direction at the left-right end. The compressed area E is a portion of the front member 20f compressed in the thickness direction, and is a portion having higher rigidity than a portion that is not compressed. When such a compressed area E is provided, it is preferable that the cut line 26 has a portion overlapping the compressed area E when viewed in the thickness direction (front-rear direction). In order to improve the feel on the skin when worn, it is preferable that the waist part 20 (front member 20f) is made of a soft material, but the softer the waist part 20 is, the less the force applied to cut off the waist part 20 is applied to the cut line 26. Therefore, when viewed in the thickness direction, the cut line 26 overlaps with the compressed area E having high rigidity, so that the force applied by the wearer to cut off the front member 20f at the cut line 26 is more likely to be concentrated on the cut line 26, making it easier to cut off the front member 20f along the cut line 26.

[0064] (Tab 30) The napkin 1 has a pair of tabs 30 (engagement members) that releasably engage with the non-skin side of the front member 20f on both left and right sides of the waist portion 20. The pair of tabs 30 has a one-side tab 30a located on one side in the left and right direction, and an other-side tab 30b located on the other side in the left and right direction.

[0065] The tab 30 has a base sheet 31 and an engagement portion 32. The base sheet 31 is a sheet member made of nonwoven fabric or the like. The outer ends in the left and right direction of each base sheet 31 are fixed to the waistline portion 20 by the fixing portion 35. The fixing portion 35 has a one-side fixing portion 35a and an other-side fixing portion 35b. The one-side tab 30a is fixed to the waistline portion 20 (front member 20f) by the one-side fixing portion 35a, and the other-side tab 30b is fixed to the waistline portion 20 (front member 20f) by the other-side fixing portion 35b. The fixing portion 35 (one-side fixing portion 35a, other-side fixing portion 35b) is also a side joint portion 40 (one-side joint portion 40a, other-side joint portion 40b). That is, in the napkin 1, the front member 20f, the rear member 20b, and the tab 30 are integrally joined by the side joint portion 40. However, the fixing portion 35 may be provided at a location different from the side joining portion 40 to join the tab 30 to the waist portion 20 .

[0066] The engaging portion 32 is a member provided on the skin side of the base sheet 31, facing the non-skin side of the front member 20f, and removably engaging with the non-skin side of the front member 20f. An example of the engaging portion 32 is a male member of a hook-and-loop fastener having a protrusion (hook member) that hooks onto the fibers that make up the non-skin side sheet 21. Note that a member (e.g. a female member of a hook-and-loop fastener) that easily engages with the engaging portion 32 may be provided on the non-skin side of the non-skin side sheet 21. The engaging portion 32 is fixed to the base sheet 31 by a joining means such as an adhesive such as a hot melt adhesive or a welding portion.

[0067] The engagement portions 32 are provided at the ends of the base sheet 31 opposite to the sides fixed by the fixing portions 35 (one-side fixing portion 35a, other-side fixing portion 35b) in the left-right direction. The engagement portions 32 include one-side engagement portion 32a provided on the one-side tab 30a and the other-side engagement portion 32b provided on the other-side tab 30b. Specifically, in the one-side tab 30, the one-side engagement portion 32a is located on the other side in the left-right direction of the one-side fixing portion 35a, and the other-side engagement portion 32b is located on one side in the left-right direction of the other-side fixing portion 35b.

[0068] In the initial state (described later) after the napkin 1 is taken out of the package 100 (see FIG. 8), the tabs 30a and 30b are preferably visible from the non-skin-facing side (outside) of the napkin 1. Furthermore, it is preferable that at least one of the tabs 30 is provided with a pattern D. The tab 30 of the napkin 1 of this embodiment is provided with a floral pattern D. This makes it easier for the wearer and those who are helping the wearer wear the napkin 1 (hereinafter also referred to as the "wearer, etc.") to recognize the presence of the tab 30, and makes it easier for the wearer to recognize that the napkin 1 can be used as both a pants-type and a tape-type. Therefore, the wearer of the napkin 1 can put on and take off the napkin 1 in the pants-type or the tape-type depending on the situation at the time, improving the ease of putting on and taking off the napkin 1. In addition, by making it easier for the wearer, etc. to recognize the tab 30, the effort of searching for the tab 30 is reduced, and it becomes easier to encourage the wearer to wear the napkin 1 in the correct way. In the napkin 1, the pattern D is provided on both the one side tab 30a and the other side tab 30b, but it may be provided on only one of the tabs 30.

[0069] It is also preferable that the tab 30 has an uneven portion in the thickness direction. For example, the uneven portion is provided by providing the tab 30 with a compressed portion by squeezing in the thickness direction. By providing the uneven portion on the tab 30, it becomes easy to grasp the tab 30 when the wearer or the like pinches it, and it becomes easy to perform the operation of engaging the tab 30 with the waist portion 20 as described later.

[0070] The pattern D provided on the tab 30 may be formed by compression. That is, the pattern D may be formed near the compressed portion and have an uneven portion in the thickness direction.

[0071] <<<About the fit of Sanitary Napkin 1>>> Fig. 4A and Fig. 4B are schematic cross-sectional views of the napkin 1 as viewed from the waist opening 1a side. Fig. 4A is a view of the napkin 1 used in a pants-type configuration, and Fig. 4B is a view of the napkin 1 used in a tape-type configuration. Fig. 5 is a developed plan view of the napkin 1 in a state in which the front member 20f has been separated from the rear member 20b along the cut line 26.

[0072] In the initial state when the napkin 1 is taken out of the package, the napkin 1 is in a pants-type configuration (FIG. 4A) in which the front member 20f and the back member 20b are connected in a circular shape, so that the wearer can put on and take off the napkin 1 while it is still in the pants-type configuration.

[0073] Furthermore, the front member 20f of the napkin 1 has tear lines (separation parts) 26 at both ends in the left-right direction, the tear lines 26 having a length in the up-down direction. Therefore, the front member 20f can be torn in the up-down direction along the tear lines 26, and a part of the front member 20f can be separated from the rear member 20b. After separation, the napkin 1 becomes a tape type with a pair of tabs 30 extending outward in the left-right direction from the rear member 20b, as shown in FIG. 5. Therefore, the wearer can put on and take off the napkin 1 in the tape type.

[0074] When the waistline portion 20 is cut along the cut line 26, the waistline portion 20 is separated into a front waistline portion 20fA, a rear waistline portion 20bA, and a non-separable portion 20fB. In the following description, the portion of the front member 20f that is separated from the rear member 20b on at least one side in the left-right direction is also referred to as the "front waistline portion 20fA." On the other hand, the portion of the front waistline portion 20f that is not separated from the rear member 20b and remains on the side joint portion 40 side is also referred to as the "non-separable portion 20fB." In addition, the rear member 20b and the non-separable portion 20fB after the front waistline portion 20fA is separated by the separation at the separation portion 26 are also referred to as the "rear waistline portion 20bA." In addition, the leg openings 1b of the napkin 1 in its initial state when it is taken out of the package 100 (see FIG. 8) and the leg openings formed by separating the front waist portion 20fA and the rear waist portion 20bA along the cut line 26 and then engaging the tab 30 with the front waist portion 20fA will be described with the same reference symbol 1b.

[0075] 6A to 6C and 7A to 7D are diagrams for explaining an example of a method for a wearer to put on the napkin 1. Fig. 8 is a front view of a pants-type napkin 1. The wearer puts on and takes off the napkin 1 by himself or with the assistance of another person while sitting on a toilet bowl (not shown) as shown in Fig. 6C etc., or while standing (in a half-squatting position).

[0076] An example of how to put on the napkin 1 in the tape form by yourself will be described below. First, as shown in FIG. 6A, the wearer opens one side tab 30a in the left-right direction of the pants-type napkin 1 to the outside (one side) in the left-right direction to expose the one side cut line 26a. Next, as shown in FIG. 6B, the wearer tears one end of the front member 20f in the left-right direction in the vertical direction along the one side cut line 26a, and separates the front waist portion 20fA, which is a part of the front member 20f, from the non-separable portion 20fB and the rear member 20b (rear waist portion 20bA). Next, as shown in FIG. 6C, the wearer pulls the separated portion of the waist portion 20 to the front side of the thigh and wraps the waist portion 20 around one (one) thigh. Then, as shown in FIG. 7A, the one side tab 30a (engagement portion 32) is engaged with the non-skin side of the abdominal waist portion 20fA (front member 20f) on one thigh. By engaging the one-side tab 30a with the waistline portion 20 (the front waistline portion 20fA), one (left) leg of the wearer is passed through the leg-opening 1b on one side in the left-right direction of the napkin 1. Fig. 7B shows the inside of the thigh around which the napkin 1 is wrapped as in Fig. 7A.

[0077] In the state shown in Fig. 7A and Fig. 7B, the one-side joint portion 40a is positioned on one of the wearer's thighs, and the absorbent body 10 (the absorbent core 11) hangs down between the thighs. Therefore, the wearer rotates the napkin 1 along the circumferential direction of the thigh. Then, as shown in Fig. 7C, the one-side joint portion 40a is positioned at one side (left side) of the wearer, and the absorbent body 10 is pulled up between the thighs.

[0078] Next, the wearer opens the other-side tab 30b outward in the left-right direction, and separates the front member 20f from the non-separable portion 20fB and the rear member 20b on the opposite side as well. At the same time, the wearer aligns the absorbent body 10 between the thighs (the center in the left-right direction of the wearer) while correcting the inclination of the absorbent body 10, which is inclined toward the thigh on one side (left side) where the napkin 1 is wrapped, so that it is aligned along the direction in which the thigh extends. Then, as shown in Fig. 7D, the wearer pulls the separated portion of the waist portion 20 to the front side of the thigh, and further wraps the waist portion 20 around the thigh on the other side (right side), and pulls the other-side tab 30b toward one side in the left-right direction to engage the other-side tab 30b with the non-skin side of the front waist portion 20fA (front member 20f) on the right thigh.

[0079] By doing so, as shown in FIG. 4B, the abdominal waistline portion 20fA of the front member 20f separated at the cut lines 26a, 26b is again connected in a ring shape to the rear waistline portion 20bA (rear member 20b) by the pair of tabs 30a, 30b. In addition, by engaging the other side tab 30b with the waistline portion 20 (front waistline portion 20fA), the front waistline portion 20fA and the rear waistline portion bA (rear member 20b) separated by the other side cut line 26b are connected, and the other (left) leg of the wearer is passed through the leg opening 1b on the other side in the left-right direction. Then, both thighs of the wearer are passed through the pair of leg openings 1b of the napkin 1. Finally, the wearer pulls up the napkin 1 and adjusts the position of the napkin 1 relative to the wearer's body, completing the wearing of the napkin 1.

[0080] Thus, the napkin 1 of this embodiment has the tabs 30a, 30b that removably engage with the front waistband portion 20fA. Therefore, when the wearer uses the napkin 1 in a tape-type form, the wearer can attach the tab 30 to the front member 20f while visually checking the tabs 30a, 30b on the front side of his / her body. This provides good wearability when the wearer puts on the napkin 1 by himself / herself. Also, when removing the napkin 1, the wearer can remove the tabs 30a, 30b from the front member 20f while visually checking the tabs 30a, 30b on the front side of his / her body.

[0081] In the napkin 1 of this embodiment, the tabs 30a, 30b are provided on the non-skin side (outside) of the waistline portion 20, and the engagement portions 32a, 32b provided on the skin side of the tabs 30a, 30b engage with the non-skin side of the front waistline portion 20fA. However, this is not limited to the above, and the tabs 30a, 30b may be provided on the skin side (inside) of the waistline portion 20, and after the waistline portion 20 is separated, the engagement portions 32a, 32b provided on the non-skin side of the tabs 30a, 30b may engage with the skin side of the front waistline portion 20fA.

[0082] Furthermore, when the napkin 1 is worn in the pants-type form, it is possible to remove the napkin 1 while it is still in the pants-type form, but it is also possible to remove the napkin 1 by tearing the front member 20f at the tear lines 26a, 26b. Conversely, when the napkin 1 is worn in the tape-type form, it is also possible to remove the napkin 1 without removing the tabs 30a, 30b.

[0083] Napkins 1 are generally distributed in the form of a package 100 in which they are contained in a container 101. FIG. 8A is a schematic perspective view of the package 100. FIG. 8B is a view for explaining the napkin 1 in an initial state. FIG. 9 is a plan view of the napkin 1 in the initial state, as viewed from the front. As shown in FIG. 8A, the package 100 contains one or more napkins 1 contained in a container 101A. Specifically, the napkin 1 in the initial state refers to the state when the napkin 1 is removed from the container 101 of the package 100, as shown in FIGS. 8B and 9. The napkin 1 in the initial state is in a state in which the tab 30 is engaged with the waist portion 20 and before the waist portion 20 is torn at the cut line 26.

[0084] <<<Recognition of Napkin 1>>> Conventionally, there is known a pant-type absorbent article that can be used as a tape-type (unfolded type) by cutting off a part of the waistband member of the pant-type absorbent article (see Figs. 1 to 5). Such absorbent articles that can be worn as both pant-type and tape-type absorbent articles have different wearing methods.

[0085] For example, in the case of the napkin 1 in the pants-type state (FIG. 1), the napkin 1 can be worn by pulling it up from the waist-opening 1a side until the waist-opening 1a reaches the wearer's waist, with both legs passing through a pair of leg-openings 1b. In other words, the napkin 1 in the pants-type state can be worn almost symmetrically on the left and right sides of the wearer's body with the same movement.

[0086] On the other hand, when wearing the napkin 1 in a tape-type state (Figure 5), as described above, first, one end of the front member 20f in the left-right direction is torn along the cutting line 26a on one side of the napkin 1 in the pants-type state (Figures 6A and 6B), the front waist portion 20fA of the torn off portion is wrapped around one thigh (Figure 6C), one side tab 30a is engaged with the front waist portion 20fA, and one leg of the wearer is passed through one of the left-right leg openings 1b of the napkin 1 (Figures 7A to 7C). Next, the other end of the front member 20f in the left-right direction is torn off, and the front waist portion 20fA of the torn off portion is wrapped around the other thigh, and the other-side tab 30b is engaged with the front waist portion 20fA, so that the wearer's other leg is passed through the leg opening 1b on the other left-right side of the napkin 1 (FIG. 7D).

[0087] As described above, the method and procedure for putting on the napkin 1 differs between the pants-type state and the tape-type state. In particular, when putting on the napkin in the tape-type state, different procedures are taken for the left and right sides, so it is necessary for the wearer to be aware of how to put it on.

[0088] However, since a typical pants-type absorbent article has a bilaterally symmetrical shape in a plan view, in an absorbent article that can be worn in both a pants-type state and a tape-type state, such as the napkin 1, when it is in the tape-type state, it may be difficult for the wearer to recognize that the left and right sides are to be worn in different procedures. In particular, since the napkin 1 is in a pants-type state in the initial state when it is taken out of the package 100, there was a problem that it is difficult for the wearer to recognize that the procedure for wearing the napkin 1 in the tape-type state is different between the left and right sides.

[0089] In contrast, in the napkin 1 of this embodiment, when stretched into a pants-type state, the napkin 1 has an asymmetric shape with respect to the center CC in the left-right direction, which makes it easy for the wearer to recognize that when wearing the napkin 1, it is preferable to wear it in different steps on one side in the left-right direction than on the other side.

[0090] The napkin 1 of this embodiment has a top-bottom direction, a left-right direction, and a front-rear direction that intersect with one another, and has a ring-shaped waistline portion 20, a one-side tab 30a, and an other-side tab 30b. The one-side tab 30a is provided on one side in the left-right direction of the napkin 1, and has a one-side engagement portion 32a that removably engages with the waistline portion 20. The other-side tab 30b is provided on the other side in the left-right direction of the napkin 1, and has an other-side engagement portion 32b that removably engages with the waistline portion 20. The one-side tab 30a is fixed to the waistline portion 20 by a one-side fixing portion 35a, and the other-side tab 30b is fixed to the waistline portion 20 by the other-side fixing portion 35b. In the one-side tab 30a, the one-side engagement portion 32a is located on the other side (inner) in the left-right direction than the one-side fixing portion 35a, and in the other-side tab 30b, the other-side engagement portion 32b is located on one side (inner) in the left-right direction than the other-side fixing portion 35b. In addition, the waistline portion 20 has a pair of cut lines 26a, 26b for separating the annular waistline portion 20 into a front waistline portion 20fA and a rear waistline portion 20bA (rear member 20b).

[0091] In such a napkin 1, in an extended state as shown in Fig. 10, a length L1a from the other end 30ae of the one-side tab 30a to the other end 35au of the one-side fixed part 35a in the left-right direction is different from a length L1b from one end 30be of the other-side tab 30b to one end 35bu of the other-side fixed part 35b (L1a ≠ L1b). Fig. 10 is a diagram showing the extended state of the napkin 1 shown in Fig. 9.

[0092] As shown in FIG. 10, in the napkin 1 of this embodiment, in an extended state, the length L1a in the left-right direction from the other end 30ae of the one-side tab 30a to the other end 35au of the one-side fixed part 35a is longer than the length L1b from the one end 30be of the other-side tab 30b to the one end 35bu of the other-side fixed part 35b (L1a>L1b).

[0093] The napkin 1 has different lengths L1a and L1b in the stretched state, which allows the wearer to easily recognize that the napkin 1 has an asymmetric shape with respect to the center in the left-right direction. Therefore, the wearer can easily recognize and be aware that it is preferable to wear the napkin 1 in a different procedure on one side and the other side when wearing it. In particular, in the case of an absorbent article that can be worn in a pants-type state like the napkin 1, pants-type absorbent articles generally have a symmetric shape, so the wearer can easily get confused when trying to wear it in a tape-type state. In contrast, the napkin 1 has an asymmetric shape with respect to the center CC in the left-right direction in the initial pants-type state, which allows the wearer to easily recognize that the napkin 1 is not a typical pants-type absorbent article, but can also be worn in a tape-type state, and that it is preferable to wear it in a different procedure on one side and the other side in the left-right direction.

[0094] The length and other aspects of the napkin 1 are measured and compared in an extended state (FIG. 10) in which the elastic members of the napkin 1 (FIGS. 8B and 9) in its initial state after removal from the package are extended. The extended state in which the napkin 1 in its initial state shown in FIG. 10 is extended is specifically a state in which no deformation other than extension has been applied since removal from the package 100, specifically a state in which the napkin 1 is removed from the package 100, the tab 30 is not released from engagement with the waistline portion 20, and the waistline portion 20 is not torn, and all of the elastic members of the napkin 1 are extended.

[0095] In addition, in the extended state, it is preferable that the length L3a from the center 32ac of the one-side engaging portion 32a in the left-right direction to the other end 35au of the one-side fixing portion 35a in the left-right direction is different from the length L3b from the center 32bc of the other-side engaging portion 32b in the left-right direction to the one end 35bu of the other-side fixing portion 35b (L3a≠L3b). In the napkin 1 of this embodiment, in the extended state, the length L3a from the center 32ac of the one-side engaging portion 32a in the left-right direction to the other end 35au of the one-side fixing portion 35a in the left-right direction is longer than the length L3b from the center 32bc of the other-side engaging portion 32b in the left-right direction to the one end 35bu of the other-side fixing portion 35b (L3a>L3b).

[0096] This makes it easier for the wearer to recognize that the napkin 1 is asymmetrical with respect to the center CC in the left-right direction than when the lengths L3a and L3b are the same, and also makes it easier for the wearer to recognize that it is preferable to wear the napkin 1 in different steps on one side and the other side in the left-right direction.

[0097] The front waistline portion 20fA (front member 20f) preferably has a front stretchable region 20EA that is stretchable in the left-right direction. In addition, in the stretched state of the napkin 1, it is preferable that the length L6a from the end EAa on the left-right side of the front stretchable region 20EA to the one-side cut line 26a is different from the length L6b from the end EAb on the other side of the front stretchable region 20EA to the one-side cut line 26b end 26bu (L6a ≠ L6b). In the napkin 1 of this embodiment, in the stretched state, the length L6a from the end EAa on the left-right side of the front stretchable region 20EA to the one-side cut line 26a is shorter than the length L6b from the end EAb on the other side of the front stretchable region 20EA to the one-side cut line 26bu (L6a <L6b)。

[0098] This makes it easier for the wearer or the like to recognize that the napkin 1 has an asymmetric shape with respect to the center C-C in the left-right direction than when the length L6a and the length L6b are the same length. And it becomes easier for the wearer or the like to recognize that it is preferable to wear the napkin 1 in different procedures on one side and the other side in the left-right direction.

[0099] Also, as described above, for the napkin 1 having the absorbent body 10 provided with the absorbent core 11, in the extended state, it is preferable that the length L7a from the center in the left-right direction of the absorbent body 10 to the one-side cut line 26a in the left-right direction and the length L7b from the center in the left-right direction of the absorbent body 10 to the other-side cut line 26b in the left-right direction are different (L7a≠L7b). In the napkin 1 of the present embodiment, in the extended state, the length L7a from the center (C-C) in the left-right direction of the absorbent body 10 to the one-side cut line 26a in the left-right direction is shorter than the length L7b from the center (C-C) in the left-right direction of the absorbent body 10 to the other-side cut line 26b (L7a<L7b). In the napkin 1 of the present embodiment, as shown in FIG. 10 and the like, the center of the absorbent body 10 is at the same position as the center C-C in the left-right direction of the entire napkin 1.

[0100] This makes it easier for the wearer or the like to recognize that the napkin 1 has an asymmetric shape with respect to the center C-C in the left-right direction than when the length L7a and the length L7b are the same length. And it becomes easier for the wearer or the like to recognize that it is preferable to wear the napkin 1 in different procedures on one side and the other side in the left-right direction.

[0101] As described above, in the case of the napkin 1 in which the annular waistband portion 20 has the side joint portions 40, 40 at which both end portions of the front member 20f and the rear member 20b are joined, it is preferable that in the stretched state, the length L5a in the left-right direction from the end fae on one side of the front member 20f to the end 35as on one side of the one-side fixing portion 35a is different from the length L5b from the end fbe on the other side of the front member 20f to the end 35bs on the other side of the other-side fixing portion 35b (L5a ≠ L5b). In the napkin 1 of this embodiment, in the stretched state, the length L5a in the left-right direction from the end fae on one side of the front member 20f to the end 35as on one side of the one-side fixing portion 35a is longer than the length L5b from the end fbe on the other side of the front member 20f to the end 35bs on the other side of the other-side fixing portion 35b (L5a > L5b).

[0102] This makes it easier for the wearer to recognize that the napkin 1 is asymmetrical with respect to the center CC in the left-right direction than when the length L5a and the length L5b are the same, and makes it easier for the wearer to recognize that it is preferable to wear the napkin 1 in a different order on one side and the other side in the left-right direction.

[0103] In addition, it is preferable that the area of ​​the one-side tab 30a and the area of ​​the other-side tab 30b are different in the extended state for the tab 30. In the napkin 1 of this embodiment, the area of ​​the one-side tab 30a is larger than the area of ​​the other-side tab 30b.

[0104] By visually checking the different sizes of the one-side tab 30a and the other-side tab 30b, the wearer can more easily recognize that the napkin 1 is asymmetrical with respect to the center in the left-right direction than if the one-side tab 30a and the other-side tab 30b had the same area. Therefore, the wearer can more easily recognize that it is preferable to wear the napkin 1 in a different order on one side and the other side in the left-right direction.

[0105] As described above, when the front waist portion 20fA of the napkin 1 has the front stretchable region 20EA that is stretchable in the left-right direction, it is preferable that, in the extended state, when the napkin 1 is viewed in the front-to-back direction (thickness direction), the one-side engagement portion 32a has a portion that overlaps with the front stretchable region 20EA, and the other-side engagement portion 32b does not have a portion that overlaps with the front stretchable region 20EA, as shown in Fig. 10. This makes it easier for the wearer to recognize that the napkin 1 is asymmetrical with respect to the center in the left-to-right direction than when both engagement portions 32 overlap or do not overlap the front stretchable region EA when viewed in the front-to-back direction, and makes it easier for the wearer to recognize that it is preferable to wear the napkin 1 in a different order on one side and the other side in the left-to-right direction.

[0106] In addition, when the napkin 1 is stretched, it is preferable that the one-side engagement portion 32a does not overlap the one-side cut line 26a and the other-side engagement portion 32b overlaps the other-side cut line 26b when viewed in the front-rear direction. This makes it easier for the wearer to recognize that the napkin 1 is asymmetrical with respect to the center in the left-right direction than when both engagement portions 32 overlap or do not overlap the cut line 26 when viewed in the thickness direction, and makes it easier for the wearer to recognize that it is preferable to wear the napkin 1 in a different order on one side and the other side in the left-right direction.

[0107] Furthermore, it is preferable that the "napkin kit" includes the above-mentioned napkin 1 and an indication 80 on how to wear the napkin 1. FIG. 11 is a diagram showing the indication 80 on how to wear the napkin 1. In this embodiment, the "napkin kit" is a package 100. In the package 100, the indication 80 on how to wear is provided on a rear surface 101B of the container 101, which is a portion that can be seen from the outside of the package 100. In the package 100, the rear surface 101B of the container 101 is a surface provided at a position opposite to the front surface 101A, which is a surface on which the product name indicating the napkin 1 is written in the largest size.

[0108] The wearing method display 80 is a display explaining how to wear the napkin 1. The wearing method display 80 displays a wearing method in which the napkin 1 is worn by inserting one leg of the wearer through the leg opening 1b on one side in the left-right direction, and then engaging the other side engaging portion 32b with the waist portion 20 to connect the front waist portion 20fA and the rear waist portion 20bA separated by the cut line 26b, and then inserting the other leg of the wearer through the leg opening 1b on the other side in the left-right direction.

[0109] Specifically, a pattern showing how to wear the mask when one side in the left-right direction is the right side of the wearer's body and the other side in the left-right direction is the left side of the wearer's body, and the following explanatory text are displayed in accordance with the wearing instructions. "Open the left tab of the napkin outward from the left to expose the left cutting line." "Tear the front member along the cutting line on the left side to separate it into the front waistband and the rear waistband." "Pull the separated section over the front of your thigh and engage the left tab with the ventral waistband at the top of your thigh." "Similar to the left side, open the right side tab outward, tear the front member along the right side cut line to separate it into the front waistband and the rear waistband, pull the right separated part to the front of the thigh, and engage the right side tab with the abdominal waistband."

[0110] As described above, the napkin 1 has an asymmetric shape with respect to the center CC in the left-right direction, and the procedure for wearing it is different between one side in the left-right direction and the other side in the left-right direction. Therefore, since the package 100 is a kit including the napkin 1 and the wearing method indication 80, it is easy to encourage the wearer to wear the napkin 1 in such a manner that first, one leg (left leg) of the wearer is inserted through the leg opening 1a on one side in the left-right direction of the napkin 1, and then the other leg (right leg) of the wearer is inserted through the leg opening 1b on the other side in the left-right direction of the napkin 1.

[0111] In the package 100, the wearing method indicator 80 is provided on the back surface 101B of the container 101, where it is visible from the outside, but this is not limited to this. The wearing method indicator 80 may be provided on the inner surface of the container 101. In addition, the package 100 may be such that the wearing method indicator 80 is provided on a sheet member such as paper that is separate from the container 101 and is contained in the container 101 together with the napkin 1.

[0112] ===Second embodiment=== As an example of a pants-type absorbent article according to the second embodiment, a pants-type (shorts-type) napkin 2 (hereinafter, also referred to as napkin 2) will be described. As in the first embodiment, pants-type absorbent articles also include pants-type diapers and pants-type absorbent pads.

[0113] In the pants-type napkin 2, similar to the napkin 1 of the first embodiment, the waist portion 20 (front member 20f and rear member 20b) is connected in a ring shape, and one waist opening 2a and a pair of leg openings 2b are formed. Fig. 12 is a diagram showing the napkin 2 of the second embodiment in an extended state. Hereinafter, for the napkin 2 of the second embodiment, parts common to the configuration of the first embodiment are given the same reference numerals, and detailed description of the basic configuration of the napkin 2 will be omitted.

[0114] <<<Recognition of Napkin 2>>> The napkin 2 of this embodiment has a top-bottom direction, a left-right direction, and a front-rear direction that intersect with one another, and has a ring-shaped waistline portion 20, a one-side tab 30a, and an other-side tab 30b. The one-side tab 30a is provided on one side in the left-right direction of the napkin 2, and has a one-side engagement portion 32a that removably engages with the waistline portion 20. The other-side tab 30b is provided on the other side in the left-right direction of the napkin 2, and has an other-side engagement portion 32b that removably engages with the waistline portion 20. The one-side tab 30a is fixed to the waistline portion 20 by the one-side fixing portion 35a, and the other-side tab 30b is fixed to the waistline portion 20 by the other-side fixing portion 35b. In the one-side tab 30a, the one-side engagement portion 32a is located on the other side (inner) of the one-side fixing portion 35a in the left-right direction, and in the other-side tab 30b, the other-side engagement portion 32b is located on one side (inner) of the other-side fixing portion 35b in the left-right direction. The waistline portion 20 has a pair of cut lines 26a, 26b for separating the annular waistline portion 20 into a front waistline portion 20fA and a rear waistline portion 20bA (rear member 20b). The front waistline portion 20fA (front member 20f) has a front stretchable region 20EA that is stretchable in the left-right direction.

[0115] 12, in an extended state, the distance L2a from the center CC of the napkin 1 to the left-right most end EAa of the front stretched region 20EA is different from the distance L2b from the center CC of the napkin 1 to the left-right most end EAb of the front stretched region 20EA (L2a ≠ L2b). In the napkin 2 of this embodiment, the distance L2a from the center CC to the left-right most end EAa of the front stretched region 20EA is longer than the distance L2b from the center CC to the left-right most end EAb of the front stretched region 20EA (L2a > L2b).

[0116] When the napkin 2 is in an extended state, the distance L2a and the distance L2b are different, so that the wearer can easily recognize that the napkin 2 has an asymmetric shape with respect to the center in the left-right direction, compared to when the distance L2a and the distance L2b are the same length. Therefore, the wearer can easily recognize and be aware that it is preferable to wear the napkin 2 in a different procedure on one side and the other side when wearing it. In particular, in the case of an absorbent article that can be worn in a pants-type state, such as the napkin 2, pants-type absorbent articles generally have a symmetric shape, so that the wearer can easily get confused when trying to wear it in a tape-type state. In contrast, in the napkin 2, the napkin 2 in the pants-type state has an asymmetric shape with respect to the center CC in the left-right direction, so that the wearer can easily recognize that the napkin 2 is not a typical pants-type absorbent article, but can also be worn in a tape-type state, and that it is preferable to wear it in a different procedure on one side and the other side in the left-right direction.

[0117] Some of the configurations of the napkin 1 described above can also be applied to the napkin 2. The following configuration allows the wearer to easily recognize that the napkin 2 has an asymmetric shape with respect to the center CC in the left-right direction, and that it is preferable to wear the napkin 1 in a different manner on one side and the other side in the left-right direction.

[0118] For example, when the napkin 2 is in an extended state, the length L3a from the left-right center 32ac of the one-side engagement portion 32a to the other-side end 35au of the one-side fixing portion 35a in the left-right direction may be different from the length L3b from the left-right center 32bc of the other-side engagement portion 32b to the one-side end 35bu of the other-side fixing portion 35b (L3a ≠ L3b).

[0119] In addition, when the napkin 2 is stretched, the length L6a from the left-right-most end EAa of the front stretchable region 20EA to the one-side cutting line 26a and the length L6b from the other-side end EAb of the front stretchable region 20EA to the one-side end 26bu of the other-side cutting line 26b may be different (L6a ≠ L6b).

[0120] In the stretched state, the length L7a from the center of the absorbent main body 10 in the left-right direction to the one-side cutting line 26a may be different from the length L7b from the center of the absorbent main body 10 in the left-right direction to the other-side cutting line 26b (L7a ≠ L7b).

[0121] In the extended state, the length L5a in the left-right direction from one end fae of the front member 20f to one end 35as of the one-side fixed portion 35a may be different from the length L5b from the other end fbe of the front member 20f to the other end 35bs of the other-side fixed portion 35b (L5a ≠ L5b).

[0122] In an extended state, the area of ​​one side tab 30a and the area of ​​the other side tab 30b may be different.

[0123] In the extended state, when the napkin 2 is viewed in the front-to-back direction (thickness direction), as shown in FIG. 12, one side engagement portion 32a has a portion that overlaps with the front stretchable region 20EA, and the other side engagement portion 32b does not necessarily have a portion that overlaps with the front stretchable region 20EA.

[0124] In the napkin 2, when viewed in the front-to-rear direction, the one-side engagement portion 32a has a portion overlapping the one-side cut line 26a, and the other-side engagement portion 32b has a portion overlapping the other-side cut line 26b, but is not limited to this. In the extended state, when viewed in the front-to-rear direction of the napkin 2, the one-side engagement portion 32a may not overlap the one-side cut line 26a, and the other-side engagement portion 32b may have a portion overlapping the other-side cut line 26b.

[0125] Similarly to the napkin 1 of the first embodiment, it is preferable for the napkin kit to be a "napkin kit" that includes the napkin 2 and an indication of how to wear the napkin 2. In this embodiment, the "napkin kit" is also a package (not shown), and the indication of how to wear 80 is provided on the outer surface of the container of the package. The indication of how to wear 80 of the napkin 2 is the same as the indication of how to wear 80 of the package 100 of the first embodiment shown in FIG.

[0126] The napkin 2 has an asymmetric shape with respect to the center CC in the left-right direction, and the procedure for wearing it is different between one side in the left-right direction and the other side in the left-right direction. Therefore, since the package is a kit including the napkin 2 and the wearing method indication 80, it is easy to encourage the wearer to wear the napkin 2 in such a manner that first, one leg (left leg) of the wearer is inserted through the leg opening 2a on one side in the left-right direction of the napkin 2, and then the other leg (right leg) of the wearer is inserted through the leg opening 2b on the other side in the left-right direction of the napkin 2.

[0127] 12, in the napkin 2 of this package, the distance L2a from the center CC in the left-right direction to the end EAa on the one side in the left-right direction of the front stretchable region 20EA is longer than the distance L2b from the center CC in the left-right direction to the end EAb on the other side in the left-right direction of the front stretchable region EAb (L2a>L2b). That is, in the napkin 2, the stretchable region of one side (the wearer's left side) of the front waistline portion 20fA extends to the outside in the left-right direction compared to the other side (the wearer's right side) of the front waistline portion 20fA, and when both ends in the left-right direction of the front waistline portion 20fA are pulled outward, one side of the front waistline portion 20fA is more likely to stretch than the other side of the front waistline portion 20fA.

[0128] It is preferable that a package including such a napkin 2 is provided with a wearing method indication 80. The wearing method indication 80 provided on the package including this napkin 2 preferably indicates a wearing method in which the wearer first places one of his / her legs through the leg opening 2b on one side in the left-right direction, and then engages the other-side tab 30b with the waistline portion 20 (the front waistline portion 20f) to connect the front waistline portion 20fA and the rear waistline portion 20bA separated by the cut line 26b, and places the wearer's other leg through the leg opening 2b on the other side in the left-right direction.

[0129] When wearing the napkin 2 in the tape-type state, the napkin 2 is asymmetrical with respect to the center CC in the left-right direction and the wearing method display 80 is provided, which encourages the wearer to wear the napkin 2 in different steps on one side and the other side in the left-right direction. In addition, when performing an operation of grasping and engaging both ends of the front waistline portion 20fA with the tabs 30, the wearer first grasps one end of the front waistline portion 20fA with the one-side tab 30a, and engages them so as to surround one of the wearer's legs, thereby passing one of the wearer's legs through the leg opening 2b on one side in the left-right direction. At this time, the napkin 2 is more easily stretched on one side of the front waistline portion 20fA than on the other side of the front waistline portion 20fA, so that the engagement on one side in the left-right direction can be performed with a small force. Next, the wearer grasps the other end of the front waistline portion 20fA and the other tab 30b, and engages them to surround the other leg of the wearer, thereby passing the other leg through the leg opening 2b on the other side in the left-right direction. At this time, since one side of the napkin 2 in the left-right direction is engaged, the other side in the left-right direction is engaged by pulling the other end of the front waistline portion 20fA and the other tab 30b. In addition, since the other side of the front waistline portion 20fA in the left-right direction is less likely to stretch than the one side, it is easier to engage the other tab 30b at an appropriate position of the front waistline portion 20fA than when the other end of the front waistline portion 20fA is excessively stretched.

[0130] ===Other embodiments=== The above-mentioned embodiment is intended to facilitate understanding of the present invention, and is not intended to limit the present invention. The present invention can be modified or improved without departing from the spirit of the present invention, and it goes without saying that the present invention includes equivalents thereof.

[0131] For example, napkin 3 and napkin 4 as shown in Fig. 13 and Fig. 14 may be used. Fig. 13 and Fig. 14 are respectively diagrams showing modified examples of this embodiment. Napkin 3 in Fig. 13 and napkin 4 in Fig. 14 are respectively shown in an extended state from the initial state. Napkin 3 and napkin 4 in Fig. 13 and Fig. 14 are respectively shown as modified examples of napkin 1 of the first embodiment, but may also be modified examples of napkin 2 of the second embodiment.

[0132] In the first embodiment, the one-side tab 30a and the other-side tab 30b are rectangular as shown in FIG. 10 and the like, but are not limited thereto. As with the napkin 1, in the stretched state, the length L1a from the other end 30ae of the one-side tab 30a to the other end 35au of the one-side fixed portion 35a in the left-right direction and the length L1b from the one end 30be of the other-side tab 30b to the one end 35bu of the other-side fixed portion 35b may be different (L1a ≠ L1b), and the one-side tab 30a and the other-side tab 30b may have different shapes. For example, in the napkin 3 shown in FIG. 13, the one-side tab 30a is semicircular and the other-side tab 30b is rectangular. By visually checking the different shapes of the one-side tab 30a and the other-side tab 30b, the wearer or the like can easily recognize that the napkin 1 is asymmetrical with respect to the center in the left-right direction. This allows the wearer to easily recognize that it is preferable to put on the napkin 1 in different steps on one side and the other side in the left-right direction.

[0133] As in the napkin 4 of Fig. 14, in the stretched state, the length L1a from the other end 30ae of the one-side tab 30a to the other end 35au of the one-side fixing part 35a in the left-right direction is different from the length L1b from the one end 30be of the other-side tab 30b to the one end 35bu of the other-side fixing part 35b (L1a ≠ L1b), and the one-side engaging part 32a (the other-side engaging part 32b) has a side end sa (side end sb) along the up-down direction, and in the stretched state, the side end sa (side end sb) is preferably inclined with respect to the up-down direction. By inclining the side end sa of the one-side engaging part 32a with respect to the up-down direction, it is easier for the wearer to recognize that the napkin 1 has an asymmetric shape with respect to the center in the left-right direction than when the side end sa of the one-side engaging part 32a is parallel to the up-down direction. This allows the wearer to easily recognize that it is preferable to put on the napkin 1 in different steps on one side and the other side in the left-right direction.

[0134] Also, as in the napkin 4 of Fig. 14, in the extended state, the length L1a from the end 30ae on the other side of the one-side tab 30a to the end 35au on the other side of the one-side fixing part 35a in the left-right direction is different from the length L1b from the end 30be on the other side of the other-side tab 30b to the end 35bu on the other side of the other-side fixing part 35b (L1a ≠ L1b), and in the extended state, the lower end au of the one-side engaging part 32a and the lower end bu of the other-side engaging part 32b in the up-down direction may be provided at different positions. This makes it easier for the wearer to recognize that the napkin 1 is asymmetrical with respect to the center in the left-right direction than when the lower end au of the one-side engaging part 32a and the lower end bu of the other-side engaging part 32b are provided at the same position in the up-down direction. Therefore, it makes it easier for the wearer to recognize that it is preferable to wear the napkin 1 in a different order on one side and the other side in the left-right direction when wearing it.

[0135] The waistline portion 20 in the above-described embodiment is annular by joining the front member 20f and the rear member 20b at a pair of side joints 40, but is not limited to this. For example, the waistline portion 20 may be annular in which the front member 20f and the rear member 20b are joined at one joint, or the waistline portion 20 may be annular in which the front member 20f and the rear member 20b are continuous without a joint.

[0136] Furthermore, the front member 20f and the rear member 20b are not limited to being joined at a side joint 40 formed by welding or the like, but may be, for example, bonded with an adhesive having weak adhesive strength, or engaged with the waist member 20 by a hook material that engages with it, or by the hook material and a female member of a hook-and-loop fastener, and further, the hook material may be used as an engaging portion of a tab (engaging member).

[0137] In the above embodiment, the method of wearing the napkin 1 in the tape-type state is described as first tearing only one end of the front member 20f in the left-right direction, placing one of the wearer's legs through the leg opening 1b on one side of the left-right direction of the napkin 1, and then tearing the other end of the front member 20f in the left-right direction, placing the other of the wearer's legs through the leg opening 1b on the other side of the left-right direction of the napkin 1, but the method is not limited to this. For example, both ends of the front member 20f in the left-right direction of the napkin 1 in the pants-type state may be torn in advance to completely place the napkin in the tape-type state, placing one of the wearer's legs through the leg opening 1b on one side of the left-right direction of the napkin 1, and then placing the other of the wearer's legs through the leg opening 1b on the other side of the left-right direction of the napkin 1.

[0138] In the above-described embodiment, elasticity is imparted to the waistline portion 20 by the waistline elastic members 24f, 24b such as rubber threads, but this is not limited thereto. For example, instead of rubber threads, an elastic sheet member may be disposed on the waistline member 20 to impart elasticity in the left-right direction to the waistline member 20. Examples of the elastic sheet member include elastic nonwoven fabric and elastic film. [Explanation of symbols]

[0139] 1, 2, 3, 4 Napkins (pants-type absorbent articles), 1a waist opening (waist opening), 1b leg opening (leg opening), 2a waist opening (waist opening), 2b leg opening (leg opening), 10 absorbent body, 11 absorbent core, 12 top sheet, 13 back sheet, 13a liquid impermeable sheet, 13b hydrophobic sheet, 14 leak-proof wall portion, 141 leak-proof wall elastic member (side elastic member), 15 absorbent elastic member, 20 waist circumference, 20f front member, 20b rear member, 20fA front waist portion, 20bA rear waist portion, 20EA anterior stretchable area, 20NA non-stretchable area, 21 non-skin side sheet, 22 skin side sheet, 23 skin side sheet, 24f front waist elastic member, 24b rear waist elastic member, 25 Leg elastic member, 26 Cutting line (separation part), 26a one side cut line, 26b other side cut line, 30 Tab (engagement member), 30a one-side tab (one-side engagement member, engagement member), 30b other side tab (other side engagement member, engagement member), 31 Base sheet, 32 engagement portion, 32a one side engaging part, 32b other side engaging part, 35 fixed part, 35a One side fixed part, 35b Other side fixed part, 40 Side joint (joint), 80 How to wear it, 100 packages (kits of pants-type absorbent articles), 101 storage material, 101A front, 101B back, D design, E. Compression area

Claims

1. The vertical direction, the horizontal direction, and the front-rear direction intersect with each other, An annular waist portion; a one-side engaging member provided on one side in the left-right direction and including a one-side engaging portion that removably engages with the waistband portion; a second-side engaging member provided on the other side in the left-right direction and including a second-side engaging portion that removably engages with the waistband portion; having The waist portion is a pants-type absorbent article having a pair of separation portions for separating the annular waist portion into a front waist portion and a rear waist portion, the one-side engaging member is fixed to the waist portion by a one-side fixing portion, the other-side engaging member is fixed to the waist portion by the other-side fixing portion, In the one-side engagement member, the one-side engagement portion is located on the other side in the left-right direction relative to the one-side fixing portion, In the other-side engaging member, the other-side engaging portion is located on one side of the other-side fixing portion in the left-right direction, In the extended state, the length from the other end of the one-side engaging member to the other end of the one-side fixing portion in the left-right direction is different from the length from the one end of the other-side engaging member to the one end of the other-side fixing portion. A pants-type absorbent article characterized by:

2. The vertical direction, the horizontal direction, and the front-rear direction intersect with each other, An annular waist portion; a one-side engaging member provided on one side in the left-right direction and including a one-side engaging portion that removably engages with the waistband portion; a second-side engaging member provided on the other side in the left-right direction and including a second-side engaging portion that removably engages with the waistband portion; having The waist portion is a pants-type absorbent article having a pair of separation portions for separating the annular waist portion into a front waist portion and a rear waist portion, The front waist portion is a pants-type absorbent article having a front stretchable region that is stretchable in the left-right direction, the one-side engaging member is fixed to the waist portion by a one-side fixing portion, the other-side engaging member is fixed to the waist portion by the other-side fixing portion, In the one-side engagement member, the one-side engagement portion is located on the other side in the left-right direction relative to the one-side fixing portion, In the other-side engaging member, the other-side engaging portion is located on one side of the other-side fixing portion in the left-right direction, In a stretched state, a distance from a center in the left-right direction of the pant-type absorbent article to an end on one side in the left-right direction of the front elastic region is different from a distance from a center in the left-right direction of the pant-type absorbent article to an end on the other side in the left-right direction of the front elastic region. A pants-type absorbent article characterized by:

3. The pants-type absorbent article according to claim 1 or 2, A pants-type absorbent article characterized in that, in an extended state, the length in the left-right direction from the center of the one-side engagement portion to the other-side end of the one-side fixed portion is different from the length in the left-right direction from the center of the other-side engagement portion to the one-side end of the other-side fixed portion.

4. The pants-type absorbent article according to claim 1 or 2, The front waist portion has a front stretchable region that is stretchable in the left-right direction, the pair of separators includes a one-side separator provided on one side in the left-right direction and an other-side separator provided on the other side in the left-right direction, A pants-type absorbent article characterized in that, in an extended state, the length in the left-right direction from the end of the front stretchable region on one side to the one-side separation portion is different from the length in the left-right direction from the end of the front stretchable region on the other side to the other-side separation portion.

5. The pants-type absorbent article according to claim 1 or 2, an absorbent body having an absorbent core; the pair of separators includes a one-side separator provided on one side in the left-right direction and an other-side separator provided on the other side in the left-right direction, A pants-type absorbent article characterized in that, in an extended state, the length from the center of the absorbent body in the left-right direction to the one-side separation portion is different from the length from the center of the absorbent body in the left-right direction to the other-side separation portion.

6. The pants-type absorbent article according to claim 1 or 2, the annular waist portion has a pair of joints at both side ends of a front member and a rear member, The front member constitutes at least a part of the front waistband portion, The rear member constitutes at least a part of the rear waistband portion, A pants-type absorbent article characterized in that, in an extended state, the length in the left-right direction from one end of the front member to one end of the one-side fixed part is different from the length from the other end of the front member to the other end of the other-side fixed part.

7. The pants-type absorbent article according to claim 1 or 2, A pants-type absorbent article, characterized in that, in a stretched state, an area of ​​the one engaging member and an area of ​​the other engaging member are different.

8. The pants-type absorbent article according to claim 1 or 2, A pants-type absorbent article, characterized in that the one-side engaging member and the other-side engaging member have different shapes.

9. The pants-type absorbent article according to claim 1 or 2, The one-side engagement portion has a side end along the up-down direction, A pants-type absorbent article, wherein in a stretched state, the side ends are inclined with respect to the up-down direction.

10. The pants-type absorbent article according to claim 1 or 2, A pants-type absorbent article, characterized in that in a stretched state, a lower end of the one-side engaging portion and a lower end of the other-side engaging portion are provided at different positions in the up-down direction.

11. The pants-type absorbent article according to claim 1 or 2, A pants-type absorbent article, wherein the one engaging member is provided with a pattern.

12. The pants-type absorbent article according to claim 1 or 2, The front waist portion has a front stretchable region that is stretchable in the left-right direction, In the extended state, when viewed in the front-rear direction, The one-side engagement portion has a portion overlapping with the front stretchable region, A pants-type absorbent article, wherein the other-side engagement portion does not have a portion overlapping with the front-side elastic region.

13. The pants-type absorbent article according to claim 1 or 2, the pair of separators includes a one-side separator provided on one side in the left-right direction and an other-side separator provided on the other side in the left-right direction, In the extended state, when viewed in the front-rear direction, the one-side engagement portion does not overlap with the one-side separation portion, A pants-type absorbent article, wherein the other-side engagement portion has a portion that overlaps with the other-side separation portion.

14. The pants-type absorbent article according to claim 1 or 2, A pant-type absorbent article kit comprising: The pants-type absorbent article has a waist opening and a pair of leg openings, The kit for pants-type absorbent articles is characterized in that the indication shows a method of wearing the article, in which one of the wearer's legs is inserted through the leg opening on one side in the left-right direction, and then the other side engagement portion is engaged with the waist portion to connect the front waist portion and the rear waist portion separated by the separation portion, thereby inserting the wearer's other leg through the leg opening on the other side in the left-right direction.

15. A kit of pant-type absorbent articles according to claim 14, comprising: The pants-type absorbent article comprises: The front waist portion has a front stretchable region that is stretchable in the left-right direction, A pant-type absorbent article kit, characterized in that the distance from the center of the pant-type absorbent article in the left-right direction to the left-right-most end of the front stretchable region is longer than the distance from the center of the pant-type absorbent article in the left-right direction to the other left-right-most end of the front stretchable region.

Citation Information

Patent Citations

  • Disposable diaper

    JP2010131197A