CN112118815A

CN112118815A - Absorbent article

Info

Publication number: CN112118815A
Application number: CN201980032004.9A
Authority: CN
Inventors: 渡边纱纪子; 深山拓也; 石川慎一; 坂口智
Original assignee: Unicharm Corp
Current assignee: Unicharm Corp
Priority date: 2018-05-18
Filing date: 2019-05-16
Publication date: 2020-12-22
Also published as: KR20210011426A; BR112020022983A2; WO2019221241A1

Abstract

The invention provides an absorbent article capable of improving visibility of an indicator. An absorbent article (10) includes an indicator (80), and the indicator (80) includes an indicator portion that changes color with urine. The indication pattern (80) includes a high unit area weight portion (81) and a low unit area weight portion (82). The high area weight portion (81) is provided at an edge of the indication pattern (80) in one direction.

Description

Absorbent article

Technical Field

The present invention relates to an absorbent article including an indicator portion that changes color with urine.

Background

An absorbent article such as a diaper includes an indicator portion that changes color with urine (patent document 1). The absorbent article described in patent document 1 has a character pattern provided on the outer cover and a plurality of indication patterns arranged discretely. In patent document 1, a character pattern and an indication pattern are formed of patterns having a correlation with each other. This makes it possible to provide an absorbent article having high design properties.

Documents of the prior art

Patent document

Patent document 1: japanese patent No. 4721598

Disclosure of Invention

The indicator provided on the absorbent article changes color in response to urine. Such an indicator changes color with urine. However, other decorative portions such as character patterns are present around the indication portion. Therefore, the indication portion is required to have improved visibility, and there is room for improvement.

Therefore, an absorbent article capable of improving visibility of the indicator is desired.

An absorbent article according to one aspect includes an indicator pattern including an indicator portion that changes color with urine, the indicator pattern including a high basis weight portion and a low basis weight portion, the high basis weight portion being provided at an edge of the indicator pattern in a 1 st direction.

An absorbent article according to another aspect includes a front waistline region, a rear waistline region, a crotch region between the front waistline region and the rear waistline region, an indicator pattern provided at least in the crotch region and including an indicator portion that changes color with urine, and a back surface pattern that is visually recognizable from a non-skin surface side and is different from the indicator pattern. The indication pattern provided at least in the crotch region includes a pattern formed by the indication portion and a separation member that surrounds the pattern and is visible from a non-skin surface side.

Drawings

Fig. 1 is a plan view of the absorbent article of embodiment 1.

Fig. 2 is a cross-sectional view of the absorbent article taken along line 2A-2A of fig. 1.

Fig. 3 is a plan view of the absorbent article of embodiment 2.

Detailed Description

(1) Summary of the invention

The indicator pattern changes color in response to urine. The high basis weight portion having a high basis weight of the indicator material constituting the indicator pattern changes to a different color depending on the concentration of urine. For example, when the concentration of urine is high, the high basis weight portion changes to the same color as the low basis weight portion. In addition, when the concentration amount of urine is small, the high basis weight portion changes to a color different from that of the low basis weight portion. This is because a part of the high basis weight portion does not react with urine when the concentration of urine is small.

Therefore, when the concentration of urine is high, the high and low basis weight portions change to substantially the same color, and the indication pattern changes to a substantially single-color pattern different from the original color. In addition, in the case where the concentration amount of urine is small, the high unit area weight portion and the low unit area weight portion change to colors different from each other, and thus the indication pattern changes to a pattern including colors different from each other. In other words, in the case where the concentration of urine is small, the indication pattern can be changed in a manner to have a shadow. Thus, the indication pattern of the area where the concentration of urine is small can be easily recognized as a pattern different from the indication pattern of the area where the concentration of urine is high at a glance. Here, the concentration of urine is generally highest at the site where urine first adheres, and becomes lower as urine spreads. That is, the higher the concentration of urine, the more easily the amount of urine changes, and the lower the concentration of urine, the less easily the amount of urine changes. Therefore, in the indicator pattern of the above-described aspect, it is easy to distinguish the region containing a large amount of urine, the region containing a small amount of urine, and the region containing no urine according to the difference in concentration of urine. Therefore, the visibility of the indicator can be improved.

In addition, even in a state where urine is not contained, since the high and low parts per unit area weight of the indicator are shaded, the design of the indicator can be improved.

According to a preferred embodiment, the high area-weight portion is provided only at the edge of the indication pattern in the 1 st direction.

Thus, the portion of the indication pattern where the shadow is generated is specified as the edge in one direction. Therefore, the user and the assistant can easily grasp where the shadow is generated in the indication pattern, and thus the user and the assistant can easily judge whether or not the area contains a small amount of urine by observing the color-changed pattern.

Further, since the high basis weight portion is present at the edge of the indication pattern, the high basis weight portion can be visually recognized as a pattern having a three-dimensional appearance by being perceived as a shadow. Therefore, the design of the indication pattern can be improved.

According to a preferred embodiment, the absorbent article has a front waistline region, a crotch region, and a back waistline region, the 1 st direction is a front-back direction connecting the front waistline region and the back waistline region, and the high basis weight portion is provided at a rear side edge of the indicator pattern.

For a user who is lying on his or her back, such as an infant, urine adhering to the crotch region tends to flow from the crotch region to the back side. Therefore, if it is not noticed that urine spreads to the back side, urine may sometimes leak from the back side. If the high basis weight portion is provided at the rear edge of the indicator pattern, the indicator pattern is likely to be discolored at the boundary along with the change in urine volume in the back direction from the crotch region. That is, in the back waistline region where urine is likely to spread, the high unit area weight portion for distinguishing the urine volume is provided at a position close to the back side, so that the user or the assistant can accurately confirm the judgment of the urine volume at a position close to the back side.

According to a preferred embodiment, the high basis weight portion of the indicator pattern provided in the front waistline region is provided on one of an edge on the crotch region side and an edge on the opposite side to the crotch region, and the high basis weight portion of the indicator pattern provided in the back waistline region is provided on the other of the edge on the crotch region side and the edge on the opposite side to the crotch region.

In a supine position, urine adhering to the crotch region tends to flow from the crotch region to the back side. Therefore, even when the amount of urine discharged is large, the urine is hard to spread to the ventral side. That is, in the front waistline region where urine is hard to spread, since the high unit area weight portion for distinguishing the urine volume is provided at a position close to the crotch side, the user or the assistant can confirm the urine volume more accurately on the crotch side where the urine volume needs to be judged more.

On the other hand, in the prone position, urine adhering to the crotch region tends to flow from the crotch region to the abdomen side. Therefore, even when the amount of urine discharged is large, the urine is hard to spread to the back side. That is, in the back waist region where urine is hard to spread, the high unit area weight portion capable of distinguishing the urine volume is provided at a position closer to the crotch side, so that the user or the assistant can confirm the urine volume more accurately at the crotch side where the urine volume needs to be judged more.

According to a preferred embodiment, the high basis weight portion is provided at an edge on the crotch region side in the indication pattern provided in the front waistline region, and the high basis weight portion is provided at an edge on the opposite side of the crotch region in the indication pattern provided in the back waistline region.

For a user who is lying on his or her back, such as an infant, urine adhering to the crotch region tends to flow from the crotch region to the back side. Therefore, even when the amount of urine discharged is large, the urine is hard to spread to the ventral side. That is, in the front waistline region where urine is hard to spread, since the high unit area weight portion for distinguishing the urine volume is provided at a position close to the crotch side, the user or the assistant can confirm the urine volume more accurately on the crotch side where the urine volume needs to be judged more.

According to a preferred embodiment, the indication pattern is provided in plurality, and the high basis weight portion of the indication pattern is provided at an edge of the same side of each indication pattern.

In this way, since the same portion is formed in the plurality of indication patterns, the user and the assistant can easily grasp at which position of the indication pattern the shadow is formed. Therefore, the user and the assistant can more easily judge whether or not it is an area containing a small amount of urine by observing the discolored pattern.

In addition, since the plurality of indication patterns are patterns having a uniform atmosphere, the design of the entire absorbent article is improved.

According to a preferred aspect, the indication pattern includes a region excluding the indication portion, the region excluding the indication portion is surrounded by a region including the indication portion, and the high unit area weight portion is provided at an edge in the 1 st direction of the region excluding the indication portion.

Since the high basis weight portion is present at the edge in the 1 st direction of the region not including the indicator, the high basis weight portion can be visually recognized as a pattern-like shadow, and thus can be recognized as a more three-dimensional pattern. Therefore, the design of the indication pattern can be further improved.

According to a preferable embodiment, the length of the high basis weight portion in the 1 st direction is constant.

Thus, the high-basis-weight portion can be visually recognized as a more shadow-like pattern, and a more three-dimensional pattern can be recognized. Therefore, the design of the indication pattern can be further improved.

According to a preferred embodiment, the plurality of indication patterns are arranged, and the types or orientations of the indication patterns adjacent to each other are different from each other.

Since the types or orientations of the indicating patterns adjacent to each other are different, it is easy for the user and the assistant to determine which part of the indicating pattern the urine reaches.

In addition, the assistant such as a parent can also obtain a chance of communication between mother and child by notifying the user such as an infant of information on the kind or orientation of the urine reached by the instruction pattern.

According to a preferred embodiment, the indication pattern functions as an adhesive for bonding sheets constituting the absorbent article.

Thus, the indicator pattern can have both a function as an indicator for detecting urine and a function as an adhesive for bonding the sheets to each other.

According to a preferred embodiment, the absorbent article includes a back sheet, an absorbent core that is located closer to the skin surface side than the back sheet and absorbs liquid, and a core wrap that wraps the absorbent core, and the indication pattern joins the back sheet and the core wrap.

The indication pattern is arranged at the position where the back surface sheet and the core cladding are jointed. Therefore, urine absorbed by the absorbent core is easily brought into contact with the indication pattern via the core wrap. Thus, the indicator pattern reacts readily once liquid is absorbed by the absorbent core.

According to a preferred aspect, the core cladding is joined at an overlapping portion where at least two layers overlap, and the indication pattern is joined to a portion of the core cladding different from the overlapping portion.

The core wrap is overlapped with the overlapped portion of the two layers, for example, by bonding with an adhesive, and therefore, if compared with the portion different from the overlapped portion, it is relatively difficult to transmit urine. In the present embodiment, the indication pattern is provided in a region which is different from the overlapping portion, i.e., a region through which urine easily passes. Thus, the indicator pattern reacts more readily once liquid is absorbed by the absorbent core.

According to a preferred embodiment, the absorbent article includes an absorbent core for absorbing liquid, a back sheet on a non-skin surface side of the absorbent core, and an exterior sheet on the non-skin surface side of the back sheet, wherein the indication pattern is formed on the back sheet, and the exterior sheet has a hole at least in a region overlapping the indication pattern in a thickness direction.

The user and the assistant visually recognize the indication pattern provided on the back sheet from the non-skin surface side through the outer sheet. Here, the exterior sheet has a hole at least in a region overlapping with the indication pattern in the thickness direction, so that the indication pattern is more easily visually recognized by a user or an assistant.

An absorbent article according to another aspect includes a front waistline region, a rear waistline region, a crotch region between the front waistline region and the rear waistline region, an indicator pattern provided at least in the crotch region and including an indicator which changes color with urine, and a back pattern which is visible from a non-skin surface side and is different from the indicator pattern, wherein the indicator pattern provided at least in the crotch region includes a pattern formed by the indicator and a separating member which surrounds the pattern and is visible from the non-skin surface side.

The pattern formed by the indicator portion reacting with urine is surrounded by the separating member. Therefore, the user and the assistant can easily recognize the pattern surrounded by the separating member as the indicating portion, and distinguish the pattern not surrounded by the separating member as the back pattern. Therefore, the user and the assistant can easily understand which pattern should be looked at in order to determine whether urine adheres to the absorbent article. This improves the visibility of the indicator.

According to a preferred embodiment, the separating member is formed of an indicator portion that changes color with urine.

The indication pattern is formed such that the separation member is also discolored by urine together with the pattern formed by the indication portion. Thus, the user and the assistant can more easily distinguish the color-changed indication pattern from the back surface pattern. Thus, the user and the assistant can more easily understand which pattern should be looked at in order to determine whether urine adheres to the absorbent article.

According to a preferred aspect, the shortest distance between the indication pattern and the back pattern is shorter than the maximum length of the indication pattern.

The distance between the indication pattern and the back pattern is small, so that the user or an assistant can easily compare the indication pattern with the back pattern for visual recognition. Thus, the difference between the indication pattern and the back pattern can be easily recognized at a glance.

According to a preferred embodiment, the indicator pattern extends from the crotch region to at least one of the front and back waistline regions.

Urine spreads concentrically from the point of attachment (crotch region), and therefore, discoloration of the indicator pattern occurs from the crotch region toward the front waistline region or the rear waistline region. In this technical scheme, the instruction pattern reaches at least one region in front waistline region and back waistline region from the crotch region. Therefore, a boundary indicating the color change of the pattern is easily generated in the crotch region and the front or rear waistline region, and the recognition of the color change pattern as a user or an assistant of the indicator can be facilitated. This makes it easy for the user or the assistant to determine the extent to which the urine adhering to the absorbent article reaches the front waistline region and/or the back waistline region.

According to a preferred embodiment, the length of the indication pattern in the width direction of the absorbent article is 10mm or more and 20mm or less.

A user such as an infant often wears underwear such as jumpsuits in which the crotch region can be opened. In this case, for example, an assistant such as a parent determines whether or not urine adheres by opening the crotch region of the undergarment to visually recognize the indicator pattern provided in the crotch region of the absorbent article.

Here, in an undergarment such as a pair of pants, a gap of about 30mm can be formed in the width direction in the lower crotch region. In this case, since the length of the indication pattern in the width direction is 20mm or less, the area around the indication pattern can be sufficiently visually recognized, and thus the user and the assistant can easily recognize the indication pattern from the difference from the surrounding area.

In addition, the length of the indication pattern in the width direction is 10mm or more, so that the indication pattern is prevented from becoming too small, and the user and the assistant can easily recognize the indication pattern.

According to a preferred embodiment, the plurality of indication patterns are arranged at intervals in the 1 st direction, and the distance between the indication patterns in the 1 st direction is shorter than the length of the indication patterns in the 1 st direction.

Since the plurality of indication patterns are arranged in the 1 st direction at relatively short intervals, the user and the assistant can easily recognize the indication patterns. In addition, it is easy to determine which part of the indication pattern the urine has reached.

According to a preferred embodiment, the plurality of indication patterns are arranged at a pitch of 10mm or more and less than 30mm in the 1 st direction.

In underwear such as jumpsuits, a gap of about 30mm is formed in the front-back direction (1 st direction) in the lower crotch region. In the present invention, since a plurality of indication patterns are arranged at a pitch of 10mm or more and less than 30mm, the whole of at least one indication pattern can be confirmed from a gap of about 30 mm.

According to a preferred embodiment, the length of the indication pattern in the 1 st direction is 15mm or more.

In underwear such as jumpsuits, a gap of about 30mm is formed in the front-back direction (1 st direction) in the lower crotch region. In the present invention, since the indication pattern is 15mm or more, the size of the indication pattern can be secured with respect to a gap of about 30 mm. Thus, the user or the assistant can easily recognize the indication pattern from the gap of about 30 mm.

According to a preferred embodiment, the rear patterns are provided in plurality, and the distance between the rear patterns is longer than the maximum length of the rear patterns.

Since the plurality of back surface patterns are disposed at relatively large intervals, it is easy for the user and the assistant to recognize the difference between the indication pattern and the back surface pattern.

According to a preferred embodiment, the indication patterns are arranged in the 1 st direction, and the adjacent indication patterns are different in kind or orientation from each other.

According to a preferred embodiment, the indication pattern extends from the crotch region to both of the front waistline region and the back waistline region, a plurality of indication patterns are arranged in a front-back direction, and an orientation of the indication pattern in the front waistline region is opposite to an orientation of the indication pattern in the back waistline region.

Since the orientation of the indication pattern is reversed in the front waistline region and the back waistline region, the design of the absorbent article can be improved, and the front and back distinction can be made more clear.

According to a preferred embodiment, the separating member is formed in two layers. By forming the separating member in two layers, the indication pattern is made conspicuous, and therefore the indication pattern is more easily visually recognized by the user and the assistant, so that the user and the assistant more easily recognize the difference between the indication pattern and the back surface pattern.

According to a preferred embodiment, the indication pattern and the back pattern are formed of patterns having a correlation.

By forming the indicating pattern and the back pattern from patterns having a correlation with each other, the design of the absorbent article can be improved. This can increase the desire to purchase the user and/or the user.

According to a preferred embodiment, the color of the indicator pattern that changes color with urine is formed of a color that is the opposite of the color of the back surface pattern.

Thus, the user and the assistant can more easily recognize the difference between the indication pattern and the back pattern.

According to a preferred embodiment, the separating member has a shape that outlines an outline of a pattern formed by the indicating portion.

This makes the indicator pattern a more characteristic shape, and therefore, it is more noticeable to the user and the assistant. Therefore, the user and the assistant recognize the difference between the indication pattern and the back pattern more easily.

(2) Embodiment 1

Next, an absorbent article according to embodiment 1 will be described with reference to the drawings. In the present embodiment, the absorbent article is a disposable diaper of a tape type. Alternatively, the absorbent article may be a pant-type disposable diaper. The disposable diaper may be a diaper for infants or adult.

In the description of the drawings below, the same or similar parts are denoted by the same or similar reference numerals. However, the drawings are schematic, and it should be noted that the ratio of each dimension and the like are different from the actual ratio and the like. Therefore, specific dimensions and the like should be determined with reference to the following description. In addition, the drawings may include portions having different dimensional relationships and ratios from each other.

Fig. 1 is a plan view of the absorbent article of embodiment 1. More specifically, fig. 1 shows a state of the absorbent article in which wrinkles are substantially eliminated by stretching as viewed from the non-skin surface side. Fig. 2 is a cross-sectional view of the absorbent article taken along line 2A-2A of fig. 1. Here, the non-skin surface or non-skin surface side refers to a surface or a side facing a side opposite to the skin of the wearer in a worn state of the absorbent article. On the other hand, the skin surface or the skin surface side refers to the surface or the side facing the skin of the wearer in the worn state of the absorbent article.

The absorbent article 10 has a front-back direction L, a width direction W, and a thickness direction. The front-back direction L is a direction connecting the abdomen side and the back side of the absorbent article 10 in a worn state. The width direction W is a direction orthogonal to the front-rear direction L in a plan view of the absorbent article 10. The thickness direction is a direction orthogonal to both the front-rear direction L and the width direction W.

The absorbent article 10 has a front waistline region S1, a crotch region S2, and a back waistline region S3. The front waistline region S1 is a region of the front waistline that faces the wearer when the absorbent article is used. The back waist region S3 is a region that faces the back waist of the wearer when the absorbent article is used. The crotch region S2 is a region located in the crotch of the wearer when the absorbent article is used, and is located between the front waistline region S1 and the back waistline region S3.

The absorbent article 10 may have a topsheet 50, a backsheet 62, and an absorbent 40. The top sheet 50 is positioned closer to the skin surface side than the absorber 40. The top sheet 50 covers the skin surface side of the absorber 40. The top sheet 50 may be made of a liquid-permeable sheet.

The absorbent article 10 may have side sheets 52 on both sides with respect to the center in the width direction W of the absorbent article 10. The side sheet 52 may be positioned closer to the skin surface side than the surface sheet 50. In the present embodiment, the side sheet 52 is provided over a range from the outer vicinity of the absorbent article 10 in the width direction W to the outer vicinity of the absorber 40 in the width direction W. More specifically, a part of the side sheet 52 may overlap with an outer side portion in the width direction W of the absorber 40 in the thickness direction.

An elastic member 30 that can expand and contract in the front-rear direction may be provided near the inner side in the width direction W of the side sheet 52. More specifically, the elastic member 30 is joined to the side sheet 52 in an extended state. Thereby, the side sheet 52 contracts in the front-rear direction L in a natural state. By contraction of the side sheet 52 in the front-rear direction L, a cuff (gather) is formed in which the inner portion of the side sheet 52 in the width direction rises toward the skin side.

The back sheet 62 is positioned on the non-skin surface side of the absorber 40. The back sheet 62 may be formed of a liquid-impermeable sheet. The back sheet 62 suppresses liquid leakage from the absorbent body 40 to the non-skin side.

The absorbent article 10 may have an exterior sheet 60 on the non-skin side of the back sheet 62. In order to improve air permeability, the exterior sheet 60 may be constituted by a sheet material having holes (openings) 61. The hole 61 may be formed in plural in the exterior sheet 60.

The absorber 40 may have an absorbent core 40a and a core wrap 40 b. The absorbent core 40a is made of a material capable of absorbing liquid such as urine, for example. The absorbent core 40a may be composed of, for example, pulp, a Super Absorbent Polymer (SAP), or a combination thereof.

The core cladding 40b may clad the absorbent core 40 a. The core wrap 40b may be formed of a sheet material such as tissue paper.

In the present embodiment, the core-clad layer 40b is folded such that a pair of end portions positioned at both ends of the core-clad layer 40b overlap each other on the skin surface side of the absorbent core 40a in the expanded state (see region O in fig. 2). The core clad 40b may be joined at an overlapping portion O overlapping at least two layers.

The absorbent article 10 includes: an indicator pattern 80 including an indicator portion that changes color with urine; and a back surface pattern 70 which is visually recognizable from the non-skin surface side and is different from the indication pattern 80. The indicator provided on the absorbent article changes color in response to urine. The boundary between the portion of the indicator portion that changes color with urine and the portion that does not change color tends to become blurred. That is, the color of the indicator portion changes continuously over a relatively wide area from a portion containing a large amount of urine to a portion containing no urine. Therefore, it is sometimes difficult for a user such as an infant or a parent or an assistant such as a parent to distinguish an area containing a large amount of urine, an area containing a small amount of urine, and an area containing no urine by the color of the indicator. Therefore, the absorbent article according to embodiment 1 is configured to include an indicator portion that makes it easy to distinguish between a region containing a large amount of urine, a region containing a small amount of urine, and a region containing no urine.

The back surface pattern 70 may be provided in plurality. The back surface pattern 70 may be provided on any sheet constituting the absorbent article 10 if it can be visually recognized from the non-skin surface side. For example, the back pattern 70 may be provided on the back sheet 62. The back pattern 70 may be colored, for example. Note that the back surface pattern 70 is not constituted by an indicator portion that reacts with urine, as will be described later.

The indicator pattern 80 is provided at least in the crotch region S2. The indicator portion constituting the indicator pattern 80 is discolored by urine, and can indicate wetting of the absorbent article 10. The indicator graphic 80 may be provided on the back sheet 62. Preferably, the indication pattern 80 may be provided on the surface of the back sheet 62 facing the absorbent body 40 side.

The indicator pattern 80 includes a high basis weight portion 81 and a low basis weight portion 82. The high basis weight portion 81 is a portion of the material constituting the indicating portion having a higher basis weight than the low basis weight portion 82. The high area-unit weight portion 81 is provided at an edge of the indication pattern 80 in one direction, for example, the front-rear direction L. Preferably, the high area-unit weight portion 81 is provided only at the edge of the indication pattern 80 in the 1 st direction.

The indicator pattern 80 changes color by reacting with urine. The high basis weight portion 81, which has a high basis weight and is made of the indicator material constituting the indicator pattern 80, changes to a different color depending on the concentration of urine. For example, when the concentration of urine is high, the high basis weight portion 81 changes to the same color as the low basis weight portion 82. When the concentration of urine is low, the high basis weight portion 81 changes to a color different from that of the low basis weight portion 82. This is because a part of the high basis weight portion 81 does not react with urine when the concentration of urine is low.

When the concentration of urine is high, the high and low

basis weight portions

81 and 82 change to substantially the same color, and therefore the indicator pattern 80 changes to a substantially single-color pattern that is different from the original color. In addition, in the case where the concentration of urine is low, the high unit area weight portion 81 and the low unit area weight portion 82 change to colors different from each other, and therefore the indication pattern 80 changes to a pattern including colors different from each other. In other words, in the case where the concentration of urine is low, the indication pattern 80 can be changed in a manner to have a shadow. Thus, the indication pattern 80 of the area where the concentration of urine is low can be easily recognized as a pattern different from the indication pattern 80 of the area where the concentration of urine is high at a glance. Here, the concentration of urine is generally highest at the site where urine first adheres, and becomes lower as urine spreads. That is, the higher the concentration of urine, the more easily the amount of urine changes, and the lower the concentration of urine, the less easily the amount of urine changes. Therefore, the user or the assistant can easily distinguish the area containing much urine, the area containing little urine, and the area containing no urine.

In addition, even in a state where urine is not contained, since the high and low

basis weight portions

81 and 82 of the indicator pattern 80 are shaded, the design of the indicator pattern 80 can be improved.

In the case where the high basis weight portion 81 is provided only at the edge of the indication pattern 80, the portion where the indication pattern 80 is shaded is specified as the edge in one direction. Therefore, the user and the assistant can easily grasp at which position of the indication pattern 80 the shadow is generated, and thus the user and the assistant can easily judge whether or not the area contains a small amount of urine, that is, a low concentration of urine, by observing the color-changed pattern. Further, since the high basis weight portion 81 is present at the edge of the indication pattern 80, the high basis weight portion 81 can be recognized as a three-dimensional figure by visually recognizing it as a shadow. The design of the indicator pattern 80 can be improved.

The indication pattern 80 may be arranged in plural at intervals in one direction. In the present embodiment, the indication patterns 80 are arranged along the front-rear direction L. It is preferable that the distance L5 between the indicating patterns 80 adjacent to each other is shorter than the length L4 of the indicating patterns 80 in the direction in which the indicating patterns 80 are aligned with each other. Since the indication patterns 80 are arranged in one direction at relatively short intervals, it is easy to determine which region of the absorbent article 10 urine has reached. Preferably, the indicator pattern 80 reaches at least one of the front waistline region S1 and the back waistline region S3 from the crotch region S2. More preferably, the indicator pattern 80 extends from the crotch region S2 to both the front waistline region S1 and the back waistline region S3.

The high basis weight parts 81 of the indicator pattern 80 provided in the front waistline region S1 are provided in either one of the crotch region side edge and the crotch region side edge, and the high basis weight parts 81 of the indicator pattern 80 provided in the back waistline region S3 are provided in the other of the crotch region side edge and the crotch region side edge. In the example shown in fig. 1, the high basis weight portions 81 of the indicator pattern 80 provided in the front waistline region S1 are provided at the edge on the crotch region side, and the high basis weight portions 81 of the indicator pattern 80 provided in the back waistline region S3 are provided at the edge on the opposite side from the crotch region.

In the supine position, urine adhering to the crotch region S2 easily flows from the crotch region S2 to the back side. Therefore, even when the amount of urine discharged is large, the urine is hard to spread to the ventral side. That is, in the front waistline region S1 where urine is less likely to spread, the high basis weight portion 81 capable of distinguishing the urine amount is provided at a position closer to the crotch side, and therefore the user or the assistant can confirm the urine amount more accurately on the crotch side where the urine amount needs to be determined more.

On the other hand, in the prone position, urine adhering to the crotch region S2 easily flows from the crotch region S2 to the abdomen side. Therefore, even when the amount of urine discharged is large, the urine is hard to spread to the back side. That is, in the back waistline region S3 where urine is hard to spread, the high unit area weight portion 81 capable of distinguishing the urine amount is provided at a position closer to the crotch side, so that the user or the assistant can confirm the urine amount more accurately at the crotch side where the urine amount needs to be judged more.

For users who are prone to supine positions such as infants, it is more preferable that the high basis weight portion 81 of the indicator pattern 80 provided in the front waistline region S1 be provided at the edge on the crotch region side, and the high basis weight portion 81 of the indicator pattern 80 provided in the rear waistline region S3 be provided at the edge on the opposite side of the crotch region, as in the example shown in fig. 1.

Preferably, in the plurality of indication patterns 80, the high area weight portions 81 of the indication patterns 80 are provided at the edges of the same side of each indication pattern 80. The plurality of indication patterns 80 become patterns having a uniform atmosphere because it appears that the shadows of the plurality of indication patterns 80 are generated on the same side. Therefore, the design of the absorbent article as a whole is improved.

In addition, since the high basis weight parts 81 are located on the same side of the indication pattern 80, the high basis weight parts 81 are arranged like a scale, for example, in the front-rear direction L as shown in fig. 1. Therefore, the user and the assistant can more easily grasp to which position of the absorbent article 10 the liquid such as urine spreads.

Preferably, the high area weight portion 81 is provided at the edge of the rear side of the indication pattern 80. For a user who is lying on his or her back, such as an infant, urine adhering to the crotch region S2 easily flows from the crotch region S2 to the back side. Therefore, if it is not noticed that urine spreads to the back side, urine may sometimes leak from the back side. If the high basis weight portion 81 is provided at the rear edge of the indicator 80, the boundary of the indicator 80 is likely to be discolored with the change in the urine volume in the back direction from the crotch region S2. That is, in the back waistline region S3 where urine is likely to spread, the high unit area weight portion 81 that can distinguish the amount of urine is provided at a position on the back side, so that the user or the assistant can accurately confirm the determination of the amount of urine at a position closer to the back side.

Preferably, the length of the high basis weight portion 81 in one direction, for example, the length in the front-rear direction L, is constant. This makes it possible to visually recognize the high-basis-weight portion 81 as a more shadow-like pattern and to recognize the pattern as a more three-dimensional pattern. Therefore, the design of the indication pattern 80 can be further improved.

Preferably, a plurality of indication patterns 80 are arranged in the 1 st direction, for example, the front-rear direction L, and the kinds or orientations of the indication patterns 80 adjacent to each other are different from each other. In the example shown in fig. 1, the kind of indicating patterns 80 adjacent to each other is a pattern imitating a flower and a bee. It is also possible instead that the indication patterns 80 adjacent to each other are the same pattern and only their orientation is different. In this way, if the kind or orientation of the indicator patterns 80 adjacent to each other is different, it is easy for the user and the assistant to determine which part of the indicator pattern 80 the urine reaches. Further, the assistant such as a parent can also obtain a chance of communication between mother and child by notifying the user such as an infant or a baby of the information of the indication pattern 80 indicating which kind or direction urine has reached.

The indication pattern 80 may include a region 85 not including an indication portion, the region 85 not including an indication portion being surrounded by the high unit area weight portion 81 and the low unit area weight portion 82 as regions including an indication portion. In this case, it is preferable that the high area-specific weight portion 81 is provided at an edge of the region 85 excluding the indicating portion in one direction, for example, the front-rear direction L. In this case, since the high unit area weight portion 81 is present at the edge in one direction, for example, the front-rear direction L, of the region 85 including no indicating portion, the high unit area weight portion 81 can be visually recognized as a shadow like the indicating pattern 80, and can be recognized as a more three-dimensional pattern. Therefore, the design of the indication pattern 80 can be further improved.

Preferably, the indication pattern 80 and the back pattern 70 are formed of patterns having a correlation. For example, in the example shown in fig. 1, the indicator pattern 80 is comprised of a flower and bee pattern, and the back pattern 70 is comprised of a flower and honey pattern. This makes it possible to obtain a design that has an integrated feeling as a whole.

In this way, by forming the indicator pattern 80 and the back surface pattern 70 from patterns having a relationship with each other, the design of the absorbent article 10 can be improved. This can increase the desire to purchase the user and/or the user.

Preferably, the indication pattern 80 functions as an adhesive for bonding sheets constituting the absorbent article 10. Thus, the indicator pattern 80 can have both a function as an indicator for detecting urine and a function as an adhesive for bonding sheets to each other.

Preferably, the indicator pattern 80 joins the back sheet 62 and the core cladding 40 b. In this case, urine absorbed by the absorbent core 40a easily reaches the indication pattern 80 via the core wrap 40 b. Therefore, once the liquid is absorbed by the absorbent core 40a, the indicator pattern 80 is easily reacted.

More preferably, the indicating pattern 80 is joined to a portion of the core clad 40b other than the overlapping portion O. Since the overlapping portion O where the core cladding 40b is overlapped into two layers is bonded with, for example, an adhesive, it is relatively difficult to transmit urine if compared with a portion different from the overlapping portion O. By providing the indicator pattern 80 in a portion different from the overlapping portion O, that is, an area easily permeable to urine, the liquid absorbed by the absorbent core 40a is easily brought into contact with the indicator pattern 80. Therefore, the indicator pattern 80 is more likely to react.

Preferably, the hole 61 formed in the exterior sheet 60 is provided at least in a region overlapping the indication pattern 80 in the thickness direction. The user and the assistant visually recognize the indication design 80 provided on the back sheet 62 through the exterior sheet 60 from the non-skin surface side. In the case where the exterior sheet 60 has the hole 61 at least in the area overlapping with the indication pattern 80 in the thickness direction, the user and the assistant can more easily visually recognize the indication pattern 80.

Next, the absorbent article 10X of embodiment 2 will be described. In the following description, the same reference numerals are used for the same structures as those of embodiment 1 and the description thereof is omitted. The absorbent article 10X according to embodiment 2 is different from the absorbent article 10X according to embodiment 1 in the configuration of the indicator. Fig. 3 is a plan view of an absorbent article 10X according to an embodiment. More specifically, fig. 3 shows a state of the absorbent article in which wrinkles are substantially eliminated by stretching as viewed from the non-skin surface side.

The absorbent article 10X of embodiment 2 has an indication pattern 80X. Conventional absorbent articles include character patterns that do not react with urine and indicator patterns that react with urine. In this case, it may be difficult for a user such as an infant or a parent or an assistant to distinguish the difference between the character pattern and the instruction pattern. Therefore, it is sometimes difficult for users and assistants to know which pattern should be looked at in order to determine whether urine adheres to the absorbent article. Therefore, the absorbent article according to embodiment 2 is configured to easily recognize the difference between the pattern that does not react with urine and the indication pattern that reacts with urine.

The indication pattern 80X is provided at least in the crotch region S2. The indicator constituting the indicator pattern 80X is discolored by urine, for example, and can indicate wetting of the absorbent article 10X. The instructional pattern 80X may be provided on the back sheet 62. Preferably, the indication pattern 80X may be provided on the surface of the back sheet 62 facing the absorber 40.

The indicator pattern 80X provided at least in the crotch region S2 includes a pattern 84 formed by the indicator portion and a separating member 88 surrounding the pattern 84 and visible from the non-skin surface side. Preferably, the separating member 88 is formed of an indicator portion that changes color due to urine.

The pattern 84 formed by the indicator portion reacting with urine is surrounded by the separating member 88. Therefore, the user and the assistant easily recognize the pattern 84 surrounded by the separating member 88 as the indicating portion, and distinguish the pattern not surrounded by the separating member 88 as the back surface pattern 70. Therefore, the user and the assistant can easily understand which pattern should be looked at in order to determine whether urine adheres to the absorbent article.

Further, in the case where the separating member 88 is also formed of the indicating portion, since the separating member 88 is also discolored by urine together with the pattern 84 formed of the indicating portion, the user and the assistant can easily recognize the indicating pattern 80X as the characteristic pattern. Therefore, the user and the assistant can more easily distinguish the color-changed indication pattern 80X from the back surface pattern 70. Thus, the user and the assistant can more easily understand which pattern should be viewed in order to determine whether or not urine adheres to the absorbent article 10X.

The separating member 88 may have a shape that delineates the outer shape of the pattern 84 formed by the indicating portion. In the example shown in fig. 1, the separating member 88 has a quadrangular shape surrounding the pattern 84 formed by the indicating portion. For example, the separating member 88 may be formed so as to surround the pattern 84 formed by the indicating portion at a position separated from the pattern 84 by a distance of 6mm or less.

If separating member 88 has a shape that delineates the outer shape of pattern 84 formed by the indicating portion, indicating pattern 80X becomes a more characteristic shape, and is more noticeable to the user and the assistant. Therefore, the user and the assistant recognize the difference of the indication pattern 80X and the back surface pattern 70 more easily.

In fig. 3, a separating member 88 surrounds the periphery of the pattern 84 formed by the indicating portion. Alternatively, the separating member 88 may be formed in two layers. If the separating member 88 is formed in two layers, the indication pattern 80X is more conspicuous, and thus the indication pattern is more easily visually recognized by the user and the assistant. Thereby, the user and the assistant can more easily recognize the difference between the indication pattern 80X and the back surface pattern 70.

The indication pattern 80X may be arranged in plural at intervals in one direction. In the present embodiment, the indication patterns 80X are arranged along the front-rear direction L. It is preferable that the distance L5 between the indicating patterns 80X adjacent to each other is shorter than the length L4 of the indicating patterns 80X in the direction in which the indicating patterns 80X are arranged with each other. Thus, the plurality of indication patterns 80X are arranged in one direction at relatively short intervals, and therefore the user and the assistant can easily distinguish the indication patterns 80X from the back surface pattern 70. Further, since the indication patterns 80X are arranged in one direction at relatively short intervals, it is easy to determine which region of the absorbent article 10X urine has reached.

Preferably, the indication patterns 80X are arranged in plural at a pitch of 10mm or more and less than 30mm in one direction, for example, the front-rear direction L. In the underwear such as the jumpsuits, if the buttons at the position facing the crotch region S2 are unfastened, a gap of about 30mm is generated in the front-rear direction L in the crotch region S2. If a plurality of indicator patterns 80X are arranged at a pitch of 10mm or more and less than 30mm, the entirety of at least one indicator pattern 80X can be confirmed from a gap of about 30mm (a gap of one-piece pants). This allows the user and the assistant to easily grasp whether or not urine adheres to the crotch region S2 of the absorbent article from the gap between the pants.

Preferably, the indication pattern 80X reaches at least one of the front waistline region S1 and the back waistline region S3 from the crotch region S2. More preferably, the indicator pattern 80X reaches both the front waistline region S1 and the back waistline region S3 from the crotch region S2.

Since urine spreads concentrically from the point of attachment (crotch region), the color change of the indication pattern 80X occurs from the crotch region S2 toward the front waistline region S1 or the rear waistline region S3. If the indicator pattern 80X reaches at least one of the front waistline region S1 and the back waistline region S3 from the crotch region S2, a color-changed demarcation of the indicator pattern 80X is easily generated in the front waistline region S1 or the back waistline region S3. This can help the user or the assistant who recognizes the color-changed pattern as the indication pattern. Therefore, the user or the assistant can easily determine the extent to which the urine adhering to the absorbent article 10X has reached the front waistline region S1 and/or the back waistline region S3.

Preferably, the length of the indication pattern 80X in the width direction W of the absorbent article 10X is 10mm or more and 20mm or less. A user such as an infant often wears underwear such as jumpsuits in which the crotch region can be opened. In this case, for example, an assistant such as a parent determines whether or not urine adheres by opening the crotch region of the undergarment to visually recognize the indicator pattern provided in the crotch region of the absorbent article. Here, in an undergarment such as a pair of pants, a gap of about 30mm can be formed in the width direction in the lower crotch region. In this case, since the length of the indication pattern 80X in the width direction W is 20mm or less, the area around the indication pattern 80X can be sufficiently visually recognized, and therefore, the user and the assistant can easily recognize the indication pattern 80X from the difference between the indication pattern 80X and the surrounding area.

Further, the length of the indication pattern 80X in the width direction W is 10mm or more, thereby preventing the indication pattern 80X from becoming too small, and allowing the user and the assistant to easily recognize the indication pattern 80X.

Preferably, the length of the indication pattern 80X is 15mm or more in the direction in which the indication patterns 80X are arranged, for example, the front-rear direction L. In an undergarment such as a jumpsuit, a gap of about 30mm can be created in the lower crotch region as previously described. Therefore, if the length of the indication pattern 80X is 15mm or more, the size of the indication pattern 80X can be secured with respect to a gap of about 30 mm. This makes it easy for the user or the assistant to recognize the indication pattern 80X from a gap of about 30 mm.

In order to make the indication pattern easily recognizable to the user or the assistant, it is preferable that one indication pattern, preferably two indication patterns, can be visually recognized from a gap of about 30 mm. Further, in order to avoid the indication pattern 80X becoming too small, it is more preferable that the number of indication patterns that can be seen from a gap of about 30mm is less than three. If such conditions are considered, the length of one direction of the indication patterns 80X may be in the range of 9mm to 29mm, and the distance of the indication patterns 80X from each other may be in the range of 1mm to 21 mm.

Preferably, the shortest distance L1 between the indication pattern 89 and the back pattern 70 is shorter than the longest length L2 of the indication pattern 80X. More preferably, the shortest distance L1 between the indication pattern 89 and the back face pattern 70 is shorter than the length L3 of the indication pattern 80X in a direction orthogonal to the direction in which the indication patterns 80X are arranged, for example, the width direction W. This makes it easy for the user or the assistant to visually recognize the indication pattern 80X by comparing it with the back surface pattern 70. Therefore, the difference between the indication pattern 80X and the back surface pattern 70 is easily recognized at a glance.

Preferably, the rear surface patterns 70 are provided in plural, and the distance between the rear surface patterns 70 is longer than the maximum length of the rear surface patterns 70. If a plurality of back patterns 70 are provided at relatively large intervals, the difference of the indication pattern 80X from the back patterns 70 is easily recognized by the user and the assistant. Particularly, if the distance L5 between the indication patterns 80X is shorter than the length L4 of the indication pattern 80X, the difference of the indication pattern 80X from the rear face pattern 70 becomes significant.

Preferably, a plurality of indication patterns 80X are arranged in the 1 st direction, for example, the front-rear direction L, and the kinds or orientations of the indication patterns 80X adjacent to each other are different from each other. In the example shown in fig. 1, the kind of the indicating patterns 80X adjacent to each other is a pattern imitating a flower and a bee. Alternatively, the indication patterns 80X adjacent to each other are the same pattern, and only the orientation thereof is different. In this way, if the types or orientations of the indicating patterns 80X adjacent to each other are different, the user and the assistant can easily determine which part of the indicating pattern 80X the urine reaches. Further, the assistant such as a parent can also obtain a chance of communication between mother and child by notifying the user such as an infant or a baby of the information of the indication pattern 80X indicating the kind or direction in which urine has reached.

Preferably, the orientation of the indicator pattern 80X in the front waist region S1 may be opposite to the orientation of the indicator pattern 80X in the back waist region S3. In the case where the orientation of the indication pattern 80X is reversed in the front waistline region S1 and the back waistline region S3, the design of the absorbent article 10X can be improved, and the front and back distinction can be made clearer.

Preferably, the indication pattern 80X and the back pattern 70 are formed of patterns having correlation. For example, in the example shown in fig. 1, the indication pattern 80X is constituted by a pattern of flowers and bees, and the back surface pattern 70 is constituted by a pattern of flowers. This makes it possible to obtain a design that has an integrated feeling as a whole.

By thus forming the indication pattern 80X and the back surface pattern 70 from patterns having a correlation with each other, the design of the absorbent article 10X can be improved. This can increase the desire to purchase the user and/or the user.

Preferably, the color of the indicator pattern 80X changed in color by urine is formed of a color that is the opposite of the color of the back surface pattern 70. Here, the opposite color of a certain color means a complementary color of a certain color (a color on the opposite side in the hue ring) and one and two adjacent colors of the complementary color in the hue ring based on the munsell color scale system that equally divides the hue 20.

If the color of the indicator pattern 80X after the color change is formed of a color that is the opposite of the color of the back pattern 70, the user and the assistant recognize the difference of the indicator pattern 80X from the back pattern 70 more easily.

In the modification, it is preferable that the separating member 88 is formed of the indicator portion which changes color with urine as described above. However, the separating member 88 may not necessarily be formed of an indicating portion. For example, the separating member 88 may be formed of an ink layer (colored) or may be formed of a region (ground color) sandwiched by the ink layers (colored).

While the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that the present invention is not limited to the embodiments described in the present specification. The present invention can be implemented as modifications and variations without departing from the spirit and scope of the present invention defined by the claims. Therefore, the description of the present specification is for illustrative purposes, and the present invention is not intended to be limited thereto.

Further, the contents of Japanese patent application No. 2018-096418 and Japanese patent application No. 2018-096409 filed on 5/18 in 2018 are incorporated herein by reference in their entirety.

According to this aspect, an absorbent article including an indicator portion that makes it easy to distinguish between a region containing a large amount of urine, a region containing a small amount of urine, and a region containing no urine can be provided.

Description of the reference numerals

10. An absorbent article; 40. an absorbent body; 50. a surface sheet; 60. an outer sheet; 62. a back sheet; 70. a back side pattern; 80. 80X, indicating pattern; 81. a high unit area weight portion; 82. a low unit area weight portion; 84. a pattern formed by the indicating portion; 88. a separating member; s1, front waistline region; s2, a crotch region; s3, back waistline region.

Claims

1. An absorbent article in which, in the case of a disposable absorbent article,

the absorbent article includes an indicator pattern including an indicator portion that changes color with urine,

the indicating pattern includes a high unit area weight portion and a low unit area weight portion,

the high area-unit-weight portion is provided at an edge of the indication pattern in the 1 st direction.

2. The absorbent article of claim 1,

the high area-unit-weight portion is provided only at the edge in the 1 st direction of the indication pattern.

3. The absorbent article according to claim 1 or 2, wherein,

the absorbent article has a front waistline region, a crotch region, and a rear waistline region,

the 1 st direction is a front-back direction connecting the front waistline region and the back waistline region,

the high area-unit-weight portion is provided at an edge of a rear side of the indication pattern.

4. The absorbent article according to claim 3,

the high basis weight portion of the indication pattern provided in the front waistline region is provided in either one of an edge on the crotch region side and an edge on the opposite side to the crotch region,

the high basis weight portion of the indicator pattern provided in the back waistline region is provided in the other of the edge on the crotch region side and the edge on the opposite side to the crotch region.

5. The absorbent article according to claim 3 or 4, wherein,

in the indicating pattern provided in the front waistline region, the high basis weight portion is provided at an edge on the crotch region side,

in the indicator pattern provided in the back waistline region, the high basis weight portion is provided at an edge on a side opposite to the crotch region.

6. The absorbent article according to any one of claims 1 to 5, wherein,

the indication pattern is provided in a plurality of numbers,

the high basis weight portions of the indicating patterns are provided at the edges of the same side of each indicating pattern.

7. The absorbent article according to any one of claims 1 to 6, wherein,

the indication pattern includes a region excluding the indication portion, the region excluding the indication portion being surrounded by a region including the indication portion,

the high area-unit-weight portion is provided at an edge in the 1 st direction of a region excluding the indicating portion.

8. The absorbent article according to any one of claims 1 to 7, wherein,

the length of the high basis weight portion in the 1 st direction is constant.

9. The absorbent article according to any one of claims 1 to 8, wherein,

the indication pattern is arranged in a plurality of numbers,

the kind or orientation of the indication patterns adjacent to each other are different from each other.

10. The absorbent article according to any one of claims 1 to 9, wherein,

the indication pattern has a function of an adhesive that bonds sheets constituting the absorbent article.

11. The absorbent article of claim 10,

the absorbent article includes:

a back sheet;

an absorbent core for absorbing liquid, the absorbent core being located on the skin surface side of the back sheet; and

a core cladding that surrounds the absorbent core,

the indicator pattern joins the back sheet and the core wrap.

12. The absorbent article of claim 11,

the core clad is joined at an overlapping portion where at least two layers are overlapped,

the index pattern is joined to a portion of the core cladding different from the overlapping portion.

13. The absorbent article according to any one of claims 1 to 12, wherein,

the absorbent article includes:

an absorbent core that absorbs liquid;

a back sheet on a non-skin surface side of the absorbent core; and

an outer sheet located on the non-skin surface side of the back sheet,

the indication pattern is formed on the back surface sheet,

the exterior sheet has a hole at least in a region overlapping the indication pattern in the thickness direction.

14. An absorbent article in which, in the case of a disposable absorbent article,

the absorbent article includes:

a front waistline region;

a back waistline region;

a crotch region between the front waistline region and the back waistline region;

an indicator pattern provided at least in the crotch region and including an indicator portion that changes color with urine; and

a back surface pattern which is visually recognizable from a non-skin surface side and is different from the indication pattern,

the indication pattern provided at least in the crotch region includes a pattern formed by the indication portion and a separation member that surrounds the pattern and is visible from a non-skin surface side.

15. The absorbent article of claim 14,

the separating member is formed of an indicator portion that changes color due to urine.

16. The absorbent article according to claim 14 or 15, wherein,

the shortest distance between the indication pattern and the back pattern is shorter than the maximum length of the indication pattern.

17. The absorbent article according to any one of claims 14 to 16, wherein,

the indicator pattern passes from the crotch region to at least one of the front and back waist regions.

18. The absorbent article according to any one of claims 14 to 17, wherein,

the length of the indication pattern in the width direction of the absorbent article is 10mm or more and 20mm or less.

19. The absorbent article according to any one of claims 14 to 18, wherein,

the indication pattern is arranged in a plurality at intervals in the 1 st direction,

the distance of the indication patterns in the 1 st direction from each other is shorter than the length of the indication patterns in the 1 st direction.

20. The absorbent article according to any one of claims 14 to 19, wherein,

the indication pattern is arranged in a plurality in the 1 st direction at a pitch of 10mm or more and less than 30 mm.

21. The absorbent article according to any one of claims 14 to 20, wherein,

the length of the indication pattern in the 1 st direction is 15mm or more.

22. The absorbent article according to any one of claims 14 to 21, wherein,

the back pattern is provided in a plurality of numbers,

the distance between the back patterns is longer than the maximum length of the back patterns.

23. The absorbent article according to any one of claims 14 to 22, wherein,

the indication pattern is arranged in a plurality in the 1 st direction,

24. The absorbent article according to any one of claims 14 to 23, wherein,

the indicator pattern reaching from the crotch region to both the front waistline region and the back waistline region,

the indication pattern is arranged in a plurality in the front-back direction,

the orientation of the indicator pattern in the front waist region is opposite to the orientation of the indicator pattern in the back waist region.

25. The absorbent article according to any one of claims 14 to 24, wherein,

the separating member is formed in two layers.

26. The absorbent article according to any one of claims 14 to 25, wherein,

the indication pattern and the back pattern are formed of patterns having a correlation.

27. The absorbent article according to any one of claims 14 to 26, wherein,

the color of the indicator pattern that is changed in color by urine is formed of a color that is the opposite of the color of the back surface pattern.

28. The absorbent article according to any one of claims 14 to 27, wherein,

the separating member has a shape that delineates an outer shape of a pattern formed by the indicating portion.