CN111096852B

CN111096852B - Absorbent article

Info

Publication number: CN111096852B
Application number: CN201911017217.2A
Authority: CN
Inventors: 深山拓也; 渡边纱纪子
Original assignee: Unicharm Corp
Current assignee: Unicharm Corp
Priority date: 2018-10-25
Filing date: 2019-10-24
Publication date: 2023-02-28
Anticipated expiration: 2039-10-24
Also published as: CN212089974U; WO2020085227A1; CN111096852A

Abstract

The invention provides an absorbent article, wherein an assistant can appropriately grasp the urine output through an indicating part and replace the absorbent article at an appropriate time. A disposable diaper (10) comprises: an absorbent core (31); and an indicator (70) which changes color by contact with moisture on the non-skin surface side of the absorbent core. The indicating section has a center indicating section (71) disposed at the center of the absorbent article in the width direction and a pair of side indicating sections (72) disposed at the outer sides of the center indicating section in the width direction. The central indicator portion and the side indicator portions are visually different after being discolored by contact with moisture.

Description

Absorbent article

Technical Field

The present invention relates to an absorbent article having an indicator.

Background

Conventionally, there has been provided an absorbent article having an indicator portion that changes color when brought into contact with moisture. For example, the absorbent article of patent document 1 has three indication portions extending in the front-rear direction. The three indicating portions include a center indicating portion and a pair of side indicating portions arranged outside the center indicating portion in the width direction.

Documents of the prior art

Patent literature

Patent document 1: japanese patent laid-open publication No. 2017-501768

Disclosure of Invention

The parent/parent assistant confirms the indicating portion from the outside of the absorbent article in a state where the absorbent article is worn by the wearer, and grasps the timing of replacement of the absorbent article. In this case, the assistor may not be able to confirm the entire indicator portion sufficiently by confirming the indicator portion of the absorbent article from the gap of the garment or by confirming the indicator portion by turning over a part of the garment while the wearer is wearing the absorbent article and the garment.

When the entire indicating portion cannot be confirmed, the assistant cannot distinguish the side indicating portion from the center indicating portion, and may erroneously recognize the side indicating portion and the center indicating portion, and thus the assistant cannot appropriately grasp the urine output. Since the urine output cannot be grasped properly, the absorbent article cannot be replaced at an appropriate timing, and leakage may occur.

Therefore, an absorbent article in which an assistant can appropriately grasp the urine discharge amount through the indicating portion and perform replacement of the absorbent article at an appropriate timing is desired.

One aspect relates to an absorbent article comprising: a front-back direction and a width direction orthogonal to each other; a front waistline region, a rear waistline region, and a crotch region disposed between the front waistline region and the rear waistline region; an absorbent core; and an indicator portion that is disposed on a non-skin surface side of the absorbent core so as to extend in the front-rear direction and that changes color by contact with moisture, wherein the indicator portion includes a center indicator portion disposed at a center of the absorbent article in the width direction and a pair of side indicator portions disposed on outer sides of the center indicator portion in the width direction, and the center indicator portion and the side indicator portions are visually different from each other after changing color by contact with moisture.

Drawings

Fig. 1 is a schematic plan view of an absorbent article according to the embodiment, as viewed from the skin surface side.

Fig. 2 is a schematic plan view of the absorbent article according to the embodiment as viewed from the non-skin surface side.

Fig. 3 is a schematic cross-sectional view taken along line 3A-3A of fig. 1.

Fig. 4 is a view schematically showing a wearing state in a cross section based on fig. 3.

Fig. 5 is a diagram showing the indicating section according to modifications 1 to 3.

Fig. 6 is a diagram showing the indication unit according to modifications 4 to 6.

Detailed Description

(1) Brief description of the embodiments

One aspect relates to an absorbent article comprising: a front-back direction and a width direction orthogonal to each other; a front waistline region, a rear waistline region, and a crotch region disposed between the front waistline region and the rear waistline region; an absorbent core; and an indicator portion that is disposed on a non-skin surface side of the absorbent core so as to extend in the front-rear direction and that changes color by contact with moisture, wherein the indicator portion includes a center indicator portion disposed at a center of the absorbent article in the width direction and a pair of side indicator portions disposed on outer sides of the center indicator portion in the width direction, and the center indicator portion and the side indicator portions are visually different from each other after changing color by contact with moisture. Since the center indicator and the side indicator after color change are visually different from each other, the assistant can distinguish the center indicator and the side indicator. Therefore, even when the entire indicating portion cannot be recognized, the assistant can appropriately grasp the reaction state of the indicating portion, such as a state in which only the center indicating portion has reacted, a state in which only the side indicating portion has reacted, or a state in which a part of the center indicating portion has reacted. Therefore, it is easy to grasp the urine output properly, and the absorbent article can be replaced at a proper timing.

According to a preferred aspect, on an imaginary line of the crotch region in the width direction, a length of the center indicating part in the width direction and a length of the side indicating part in the width direction on the imaginary line may be different. When the assistant opens a part of the garment such as coveralls and confirms the indicating portion of the absorbent article, the assistant can easily recognize the crotch region of the absorbent article. In the crotch region, the length of the center indicator in the width direction is different from the length of the side indicator in the width direction, and therefore the assistant can grasp the center indicator and the side indicator distinctively. Therefore, the assistant can easily grasp the reaction state of the indicating portion and grasp the urine output properly.

According to a preferred aspect, the maximum length of the center indicating portion in the width direction may be longer than the maximum length of the side indicating portions in the width direction. The center indicator is disposed at the center of the absorbent article in the width direction, faces the excretory opening of the wearer, and is likely to react to the excretion. Since the maximum length of the center indicating portion is long, the center indicating portion is easily noticeable. The assistant can change the absorbent article at an appropriate timing by grasping the presence or absence of excretion with the palm of the center indicator.

According to a preferred aspect, one of the center indicator portion and the side indicator portion may be formed of an aggregate in which a plurality of constituent elements are arranged in the front-rear direction, and the other of the center indicator portion and the side indicator portion may be formed of a line extending in the front-rear direction. The assistant can grasp the center indication part and the side indication part separately. Therefore, the assistant can easily grasp the reaction state of the indicating portion and grasp the urine output properly.

According to a preferred aspect, the constituent elements may comprise a pattern. The assistant can distinguish the center indication part and the side indication part according to the existence of the pattern. Therefore, the assistant can easily grasp the reaction state of the indicating portion appropriately and grasp the urine output appropriately.

According to a preferred aspect, the center indication portion and the side indication portions may be formed of an aggregate in which a plurality of components are arranged in the front-rear direction, and the components of the center indication portion and the components of the side indication portions may be visually different. The assistant can easily and distinctively grasp the center indicating section and the side indicating section according to the difference in the components, and properly grasp the reaction state of the indicating section and the urine output.

According to a preferred aspect, the components of the central indication portion and the components of the lateral indication portions may be interactively unrelated. Since the components are not related to each other, the assistor recognizes the components of the center indicating portion and the components of the side indicating portions as different components, and is not easy to confuse. Therefore, the assistant can grasp the center indication part and the side indication part separately. Therefore, the assistant can easily grasp the reaction state of the indicating portion and grasp the urine output properly.

According to a preferred aspect, the maximum length of the constituent elements of the central indicating portion and the maximum length of the constituent elements of the side indicating portions may be different. The assistant recognizes the components of the center indication part and the components of the side indication parts as different components, and is not easy to be confused. Therefore, the assisting person can easily grasp the center indicating portion and the side indicating portions distinctively, grasp the reaction state of the indicating portions appropriately, and grasp the urine output appropriately.

According to a preferred aspect, a deformation guide portion that deforms the absorbent core in the thickness direction may be provided in a region between the central indication portion and the side indication portions in the width direction. In the worn state, the absorbent core is deformed in the thickness direction by the deformation guide portion such that the position of the center indication portion located on the inner side in the width direction than the deformation guide portion and the position of the side indication portion located on the outer side in the width direction than the deformation guide portion are shifted in the thickness direction. When the assistant recognizes the indication part from the outside of the absorbent article, the center indication part and the side indication part can be distinguished from each other according to the position in the thickness direction. Therefore, the assistant can easily grasp the reaction state of the indicating portion and grasp the urine output properly.

According to a preferred aspect, one of the center indicator and the side indicator may be linear, and the other of the center indicator and the side indicator may be curved. The assistant can grasp the center instruction part and the side instruction part distinctively. Therefore, the assistant can easily grasp the reaction state of the indicating portion and grasp the urine output properly.

According to a preferred aspect, the center indicator and the side indicator may be disposed at least in the crotch region and the front waist region, and a front end edge of the center indicator may be positioned on a front side of a front end edge of the side indicator. The center indicator is disposed at the center of the absorbent article in the width direction, and is disposed so as to face the excretory opening of the wearer, and is likely to react to excretion. The excretory opening is disposed so as to face the center in the width direction and the center in the front-back direction of the absorbent article, and the body fluid spreads from the facing portion in the front-back direction and the width direction in a circle center manner. Therefore, the body fluid is more likely to spread in the front-rear direction at the center of the absorbent article in the width direction than at the side portions in the width direction. Since the front end edge of the center indicator portion is located on the front side of the front end edge of the side indicator portion, it can be indicated that the body fluid has spread to the front side, and forward leakage can be suppressed.

(2) Detailed description of the embodiments

Next, an absorbent article according to an embodiment will be described with reference to the drawings. In the present embodiment, the absorbent article is a belt-type absorbent article. Alternatively, the absorbent article may be a pants-type absorbent article. The absorbent article 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, it should be noted that the drawings are schematic, and the ratio of the respective dimensions and the like are different from those in reality. Therefore, specific dimensions and the like should be determined with reference to the following description. Further, the drawings may include portions having different dimensional relationships and ratios from each other.

Fig. 1 is a schematic plan view of an absorbent article according to an embodiment as viewed from the skin surface side, and fig. 2 is a schematic plan view of the absorbent article as viewed from the non-skin surface side. Fig. 3 is a schematic sectional view taken along the section 3A-3A of the absorbent article shown in fig. 1, and fig. 4 is a view schematically showing a wearing state in the section based on fig. 3. Fig. 1 to 3 show the absorbent article in an extended state. The line BL shown in fig. 4 shows the line of the wearer's body. In the cross-sectional views shown in fig. 3 and 4, the respective members are shown separately in the thickness direction T for convenience of explanation, and in an actual product, are connected in the thickness direction T. The extended state in the present invention means a state in which the absorbent article 10 is extended so as not to form wrinkles. The natural state in the present invention refers to a state in which the absorbent article 10 contained in the package is taken out of the package and left to stand for 24 hours in an atmosphere of 20 ℃. + -. 2 ℃ and relative humidity of 60%. + -. 5% RH.

The absorbent article 10 has a front-back direction L, a width direction W, and a thickness direction T. 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 T is a direction orthogonal to both the front-rear direction L and the width direction W. The non-skin surface or non-skin surface side T2 is a surface or side facing the opposite side of the skin of the wearer in the worn state of the absorbent article. On the other hand, the skin surface or the skin surface side T1 is a surface or a side facing the skin of the wearer in the worn state of the absorbent article.

The absorbent article 10 has a front waistline region S1, a crotch region S3, and a rear waistline region S2. The front waistline region S1 is a region that faces the front waistline of the wearer when the absorbent article is used. The rear waist region S2 is a region that faces the rear waist of the wearer when the absorbent article is used. The crotch region S3 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 rear waistline region S2. The crotch region S3 is a region provided with leg hole openings 65 arranged around the legs of the wearer. The leg hole openings 65 are portions recessed inward in the width direction from the outer edge of the absorbent article.

The absorbent article 10 includes an absorbent core 31 containing an absorbent material. The absorbent core 31 contains an absorbent material such as ground pulp or Super Absorbent Polymer (SAP), or a mixture thereof. The absorbent core 31 may be covered by a core cladding 32. The absorbent body 30 may be constituted by an absorbent core 31 and a core wrap 32. The core wrap 32 may be made of a thin paper and disposed on the skin surface side T1 of the absorbent core 31 and the non-skin surface side T2 of the absorbent core 31.

As shown in fig. 1 and 3, the topsheet 21 and the side sheet 22 may be provided on the skin surface side T1 of the absorbent body 30 including the absorbent core 31. The topsheet 21 may be disposed across the center of the absorbent member 30 in the width direction W. The side sheet 22 may be configured to cover an outer side portion of the surface sheet 21. The top sheet 21 and the side sheet 22 may be made of a liquid-permeable sheet such as nonwoven fabric or perforated plastic film. The inner side portions of the side sheets 22 may be folded back to overlap. Between the overlapped side sheets 22, a leakage-preventing stretchable portion 43 stretchable in the front-rear direction L may be provided. The leakage preventing stretchable part 43 may be formed of a rubber thread stretchable in the front-rear direction L. The side sheet 22 and the leakage preventing stretchable portion 43 constitute leakage preventing gathers which rise on the skin surface side T1 when worn.

The back sheet 23 and the outer sheet 24 may be provided on the non-skin surface side T2 of the absorbent body 30. The exterior sheet 24 may be provided on the non-skin surface side T2 of the back sheet 23. The length of the back sheet 23 in the width direction W is shorter than the length of the outer sheet 24 in the width direction W, and the length of the back sheet 23 in the front-rear direction L is shorter than the length of the outer sheet 24 in the front-rear direction L. The back sheet 23 may be composed of a liquid impermeable film. The exterior sheet 24 may be made of a liquid-permeable nonwoven fabric.

A fastening tape 90 is provided on the outer side of the rear waistline region S2. The hook and loop fastener 90 has a base 92 and a coupling portion 93. The base portion 92 is disposed between the exterior sheet 24 and the side sheet 22 in the thickness direction T, and extends outward from the exterior sheet 24 and the side sheet 22 in the width direction W. The coupling portion 93 is disposed on the base portion 92 and coupled to the target portion 95. The target portions 95 are disposed at intervals in the width direction in the front waistline region S1, and the coupling portions 93 of the hook and loop fastener 90 are respectively fixed thereto.

The disposable diaper 10 may have a deformation guide 40 that deforms the absorbent core 31 in the thickness direction. The deformation guide 40 is configured by at least one of a slit formed in the absorbent core 31, a low grammage portion of the absorbent material having a low grammage, an embossed portion formed by compressing the absorbent core or the like in the thickness direction, and an elastic member disposed to overlap the absorbent core in the thickness direction. As shown in fig. 3 and 4, the deformation guide 40 of the present embodiment includes a slit 41 formed in the absorbent core and an elastic member 42 disposed on the non-skin surface side T2 of the absorbent core 31.

The slits 41 extend in the front-rear direction L and are arranged at intervals in the width direction W. The slits 41 may be arranged not at the center of the absorbent core 31 in the width direction W but at both sides of the absorbent core 31 with respect to the center in the width direction W. The elastic member 42 may be provided between the back sheet 23 and the exterior sheet 24. The elastic members 42 extend in the front-rear direction L and are arranged at intervals in the width direction W. The elastic members 42 may be disposed not at the center of the absorbent core 31 in the width direction W, but two elastic members may be disposed on both sides of the absorbent core 31 with respect to the center in the width direction W. The elastic member 42 is formed of a rubber thread arranged along the front-rear direction L. In another embodiment, the elastic member 42 may be formed of a band-shaped stretchable sheet material that stretches in the front-rear direction, may be formed of one rubber thread, or may be formed of three or more rubber threads.

The slit 41 and the elastic member 42 may partially overlap in the thickness direction. In the present invention, the overlapped state means a state in which one member is overlapped with another member in a plan view, and is a state in which the other member is disposed on the skin surface side or the non-skin surface side of the one member. In the overlapped state, not only a state where one member and the other member are connected to each other but also a structure where the other member is sandwiched between the one member and the other member is included.

In a state where the absorbent article 10 configured as described above is worn, as shown in fig. 4, the absorbent core 31 is deformed with the slit 41 as a base point due to contraction of the elastic member 42, and the slit 41 and the elastic member 42 are pulled toward the body. The region between the pair of elastic members 42 is pulled toward the body side with respect to the region further outside in the width direction than the pair of elastic members 42. Therefore, the center in the width direction W of the absorbent core 31 is deformed to be convex from the side portion of the absorbent core 31 as a base point, and the fit to the crotch portion of the body can be ensured.

The absorbent article 10 has an indicator 70 that changes color when contacted by moisture. The indicator 70 is disposed so that the absorbent core 31 changes color when absorbing body fluid, and the state of absorption of body fluid can be grasped from the non-skin surface side T2 of the absorbent article 10. The indicating portion 70 is disposed to extend in the front-rear direction L. The indicator 70 may extend at least in the front-rear direction L, may extend in both the front-rear direction and the width direction, and may be curved or linear.

The indicator 70 is provided at least in the crotch region S3, may be provided in the front waistline region S1, or may be provided in the rear waistline region S2. The indicator 70 may be disposed on the non-skin surface side of the absorbent core 31, and may be provided on the back sheet 23 or the outer sheet 24. Preferably, the indicating portion 70 may be provided to the back sheet 23.

The indicator 70 may have a center indicator 71 disposed at the center of the absorbent article 10 in the width direction W and a pair of side indicators 72 disposed on the outer sides of the center indicator 71 in the width direction W. The center indicator 71 and the side indicator 72 may be disposed at intervals in the width direction W. The center indicator 71 may be arranged so as to extend over the center of the absorbent article 10 in the width direction W, and a part of the center indicator 71 may be arranged so as to be distant from the center of the absorbent article 10 in the width direction W.

The center indicator 71 and the side indicator 72 are arranged so as to be visually different from each other after being discolored by contact with moisture. Since the center indicator 71 and the side indicator 72 after color change are visually different from each other, the assistant can distinguish the center indicator 71 and the side indicator 72. Therefore, even when the entire indicating portion cannot be recognized, the assistant can appropriately grasp the reaction state of the indicating portion 70, such as a state in which only the center indicating portion 71 has reacted, a state in which only the side indicating portion 72 has reacted, or a state in which a part of the center indicating portion 71 has reacted. Therefore, it is easy to grasp the urine output properly, and the absorbent article can be replaced at a proper timing. The center indicator 71 and the side indicator 72 may be arranged so as to be visually different before being changed in color. The indicator 70 shown in fig. 2, 5 and 6 shows a state after color change.

Here, "visually different" means that at least one of the size (length in the front-back direction and length in the width direction), the shape, the outer shape (linear shape or curved shape), the color, and the density is different, and the configuration may be visually recognized as being different not by the sense of touch. After the color change, the center indicator portion 71 and the side indicator portion 72 may be visually different from each other, and before the color change, the center indicator portion 71 and the side indicator portion 72 may be visually identical to each other. The term "visually distinct" in the present invention means that the objects can be distinguished when observed by a test subject in a room brightly illuminated with daytime white (color temperature: 4600K to 5400K (kelvin)) (illuminance: 500lx to 750 lx) and having good vision (1.0 or more) in both eyes at a distance of about 30cm to 50 cm.

In a manner that the colors of the center indicator portion 71 and the side indicator portions 72 are different, the color of the center indicator portion 71 may be formed of a color that is the opposite color of the side indicator portions 72. With this configuration, the assistant can more easily recognize the difference between the center indication part 71 and the side indication part 72. Here, the opposite color of a certain color means a complementary color of a certain color (a color on the opposite side of the hue ring) and a color adjacent to the complementary color or adjacent to one color through the other color in the hue ring based on the munsell color system in which the hue is divided into 20 parts.

On an imaginary line VL along the width direction of the crotch region S3, the length W71 in the width direction of the center indicating portion 71 may be different from the length W in the width direction of the side indicating portions 72 on the imaginary line VL. When the assistant opens a part of the garment such as coveralls and confirms the indicating portion of the absorbent article 10, the crotch region S3 of the absorbent article is easily recognized. In the crotch region S3, the length W71 in the width direction of the center indicator portion 71 is different from the length W72 in the width direction of the side indicator portion 72, and therefore the assistant can grasp the center indicator portion 71 and the side indicator portion 72 separately. Therefore, the assistant can easily grasp the reaction state of the indicating portion 70 and the urine output properly.

In addition, the length W71 of the center indicator 71 in the width direction may be different from the length W72 of the side indicator 72 in the width direction on any one of the virtual lines VL in the crotch region S3, and the length W71 of the center indicator 71 in the width direction may be the same as the length W72 of the side indicator 72 in the width direction on any one virtual line VL.

Many users such as infants wear clothes such as jumpsuits that can open the crotch region. At this time, the assistant recognizes the indicator 70 provided in the crotch region of the absorbent article by opening the crotch region of the garment, and determines whether or not urine is deposited. Here, in the garment such as jumpsuits, a gap of about 30mm in the front-back direction and about 30mm in the width direction can be formed in the crotch region S3. Therefore, it is preferable to arrange that the center indicator 71 and the side indicator 72 are visible within a range of 30mm including the center in the width direction of the absorbent article and a range of 30mm including the center in the front-rear direction of the absorbent article.

The maximum length WM71 of the center indicating portion 71 in the width direction W may be different from the maximum length WM72 of the side indicating portions 72 in the width direction W. The assistant can distinguish the center indicating part 71 and the side indicating part 72. Therefore, the assistant can easily grasp the reaction state of the indicating portion and grasp the urine output properly.

Preferably, the maximum length WM71 of the center indicating portion 71 in the width direction W may be longer than the maximum length WM72 of the side indicating portion 72 in the width direction W. The center indicator 71 is disposed at the center of the absorbent article in the width direction, and is disposed so as to face the excretory opening of the wearer, and is likely to react to excretion. Since the maximum length WM71 of the center indicating portion 71 is long, the center indicating portion 71 is easily noticeable. The assistant can change the absorbent article at an appropriate timing by grasping the center indicator 71 with or without excretion.

Further, the length L71 in the front-rear direction of the center indicating portion 71 may be longer than the length L72 in the front-rear direction of the side indicating portion 72. With this structure, the center indicator 71 is easily noticeable. The assistant can change the absorbent article at an appropriate timing by grasping the center indicator 71 with or without excretion.

The center indicator 71 and the side indicator 72 may be each formed of an aggregate of a plurality of constituent elements arranged in the front-rear direction. Specifically, the center instruction section 71 includes a plurality of center components 71C as components. The side surface indicating section 72 includes a plurality of side surface components 72C as components. The center component 71C and the side component 72C may be arranged at an interval in the front-rear direction or the width direction. The components may be arranged at intervals to constitute the indication portion, and may be composed of patterns, numerals, and characters.

The center component 71C and the side component 72C may be visually different. The assistant can grasp the center indicating portion 71 and the side indicating portion 72 differently depending on the components. Therefore, the assistant can easily grasp the reaction state of the indicating portion appropriately and grasp the urine output appropriately. The center component 71C of the present embodiment is a combination of a flower pattern and a leaf pattern, and the side component 72C is a star-shaped pattern. When the center component 71C and/or the side component 72C have a plurality of patterns, any one of the plurality of patterns may be different.

Center component 71C and side component 72C may be interactively unrelated. Since the components are not related to each other, the assist person recognizes the center component and the side components as different components, and the components are not easily confused. Therefore, the center indicator 71 and the side indicator 72 can be distinguished from each other. Therefore, the assistant can easily grasp the reaction state of the indicating portion and grasp the urine output properly.

Here, "interaction is not related" means that the interaction is not related in the case where one constituent element is described as being related to or having performed an action, activity, and another constituent element is not an action, and an object of the activity is not related to the action, activity. In other cases, when a pattern is classified into a plant, an animal, a person, food, and an abstract pattern (heart, diamond, and star), the different components of the classification are not related to each other. For example, as in the present embodiment, the flower pattern and the leaf pattern as the central component belong to the classification of plants, and the side components are classified as abstract patterns, which are mutually unrelated. Furthermore, within the abstract classification of patterns, patterns without relevance are interactively unrelated to each other, e.g., patterns of stars are not relevant to patterns of hearts, interactively unrelated.

The center component 71C and the side component 72C may be different in the type and orientation of the adjacent components in the front-rear direction L. In the example shown in fig. 2, the center components 71C adjacent to each other are a flower pattern and a leaf pattern, and are different in type. Alternatively, the types of the components adjacent to each other may be the same, and only the orientations thereof may be different. In this way, when the types or orientations of the components adjacent to each other are different, the assistant can easily determine which part of the components the urine reaches. Further, the assistant can also be a trigger for communication between mother and child by transmitting information on which kind or direction of constituent element urine has reached to a user such as an infant.

The maximum length of the center component 71C may be different from the maximum length of the side component 72C. The maximum length of the component may be the maximum length of the component in the front-rear direction or the maximum length of the component in the width direction. The assist person recognizes the center component 71C and the side component 72C as different components, and is not easy to confuse. Therefore, the assistant can grasp the center indicating portion 71 and the side indicating portion 72 separately, and easily grasp the reaction state of the indicating portions appropriately, and grasp the urine output appropriately.

The maximum length of the center component 71C in the present embodiment is the maximum length WM71C in the width direction of the center component 71C, and is the maximum length WM71 in the width direction of the center instruction portion 71. The maximum length of the side surface component 72C is a maximum length WM72C in the width direction of the side surface component 72C, and is a maximum length WM72 in the width direction of the side surface indicating portion 72. The maximum length of the center component 71C may be longer than the maximum length of the side component 72C.

A plurality of components of the indicating portion may be arranged at intervals in one direction. In the present embodiment, the components are arranged in the front-rear direction L. Preferably, the distance between the components adjacent to each other is shorter than the length of the components in the direction in which the components are aligned. Thus, since the plurality of components are arranged in one direction at relatively short intervals, the assistant can easily recognize the instruction portion of the entire assembly as a component. Further, since the components are arranged in one direction at relatively short intervals, it is easy to determine which region of the absorbent article 10 urine has reached.

The plurality of components are preferably arranged in a plurality in one direction, for example, in the front-rear direction L at a pitch of 10mm or more and less than 30 mm. The pitch is a distance between centers of the components in the adjacent directions. In the garment such as jumpsuits, when the buttons at the positions facing the crotch region S3 are unfastened, a gap of about 30mm is formed in the front-rear direction L in the crotch region S3. If a plurality of components are arranged at a pitch of 10mm or more and less than 30mm, at least one entire component can be confirmed from a gap of about 30mm (gap of coveralls). This makes it possible to easily grasp whether or not urine adheres to the crotch region S3 of the absorbent article from the gap between the coveralls.

Preferably, the length of the component in the width direction is 4mm or more and 20mm or less. Many users such as infants wear clothes such as jumpsuits that can open the crotch region. At this time, the assistant such as the mother recognizes the components provided in the crotch region of the absorbent article by opening the crotch region of the garment, and determines whether or not urine is deposited. Here, in the garment such as coveralls, a gap of about 30mm in the width direction can be formed in the crotch region. In this case, since the length of the component in the width direction W is 20mm or less, the area around the instruction portion can be sufficiently recognized, and thus the assistor can easily recognize the component by the difference from the surrounding area. Further, by setting the length of the component in the width direction W to 4mm or more, the component is prevented from becoming too small, and the component is easily recognized by an assistant.

Preferably, the length of the component is 15mm or more in the direction in which the components are arranged, for example, the front-rear direction L. In a garment such as jumpsuits, a gap of about 30mm can be formed in the crotch region as described above. Therefore, if the length of the component is 15mm or more, the size of the component can be secured with respect to the gap of about 30 mm. Thus, the assistant can easily recognize the components from the gap of about 30 mm.

In order to facilitate the recognition of the instruction portion 70 by the assistant, one or preferably two components are preferably visible from a gap of about 30 mm. Further, in order to prevent the components from becoming too small, it is more preferable that the number of components visible through a gap of about 30mm is less than three. When such conditions are considered, the length of the components in one direction may be in the range of 9 to 29mm, and the distance between the components may be in the range of 1 to 21mm.

The deformation guide 40 may be arranged in a region between the center indicating portion 71 and the side indicating portion 72 in the width direction W. As long as at least a part of the deformation guide 40 is disposed in the region between the center indication part 71 and the side indication part 72, the deformation guide 40 may partially overlap the center indication part 71, or the deformation guide 40 may partially overlap the side indication part 72.

In the worn state, the absorbent core 31 is deformed in the thickness direction by the deformation guide portions 40 so that the position of the center indicating portion 71 located on the inner side in the width direction W than the deformation guide portions 40 and the position of the side indicating portion 72 located on the outer side in the width direction W than the deformation guide portions 40 are shifted in the thickness direction T. When the assistant recognizes the indication part 70 from the outside of the absorbent article 10, the center indication part 71 and the side indication part 72 can be distinguished from each other according to the position in the thickness direction T. Therefore, the assistant can easily grasp the reaction state of the indicating portion and grasp the urine output properly.

The center indicator 71 and the side indicator 72 may be disposed in at least the crotch region S3 and the front waistline region S1. The front end edge 71F of the center indicator portion 71 may be located further forward than the front end edge 72F of the side indicator portion 72. The center indicator 71 is disposed at the center of the absorbent article in the width direction, and is disposed so as to face the excretory opening of the wearer, and is likely to react to excretion. The excretory opening is disposed so as to face the center in the width direction and the center in the front-rear direction of the absorbent article, and the bodily fluid spreads from the facing portion in the front-rear direction and the width direction in a circle center shape. Therefore, the body fluid is more likely to spread in the front-rear direction at the center of the absorbent article in the width direction than at the side portions in the width direction. Since the front end edge of the center indicator portion 71 is located on the front side of the front end edge of the side indicator portion 72, it can be indicated that the body fluid has spread to the front side, and forward leakage can be suppressed.

The rear end edge 71R of the center indicating portion 71 may be located further to the rear side than the rear end edge 72R of the side indicating portion 72. Even when the assistor confirms the indicator 70 from the back side of the wearer, such as when the wearer is facing back, or when only a part of the buttocks can be recognized, the indicator can be easily recognized. Further, since the rear end edge 71R of the center indicating portion 71 is located on the rear side of the rear end edge 72R of the side indicating portion 72, it can be indicated that the body fluid has spread to the rear side, and rearward leakage can be suppressed.

Next, an absorbent article according to a modification will be described with reference to fig. 5 and 6. Fig. 5 and 6 are plan views of the absorbent article viewed from the non-skin surface side, and show the indicator according to the modified example. In the following description of the modified examples, the same reference numerals are used for the same components as those of the above-described embodiment, and the description thereof is omitted. The indicating portions according to modifications 1 to 6 are arranged such that the center indicating portion 71 and the side indicating portions 72 are visually different from each other, as in the above-described embodiment, and are easily distinguished from each other.

Fig. 5 (a) shows an indicator 701 according to modification 1. Both the center indicating portion 71 and the side indicating portion 72 are formed of linear lines extending in the front-rear direction. The length L71 in the front-rear direction of the center indicator 71 according to modification 1 is the same as the length L72 in the front-rear direction of the side indicator 72 according to modification 1. The length W71 of the center indicating portion 71 in the width direction is longer than the length W72 of the side indicating portion 72 in the width direction.

Fig. 5 (b) shows an indication portion 702 according to modification 2. The pitch P71 in the front-rear direction of the center component 71C according to modification 2 is different from the pitch P72 in the front-rear direction of the side component 72C according to modification 2. By making the pitch P71 of modification 2 shorter than the pitch P72, the center components 71C can be arranged closely, and the center indicator portion 71 can be made noticeable.

Fig. 5 (c) shows an indicator 703 according to modification 3. One of the center indicating section 71 and the side indicating section 72 may be formed of an aggregate of a plurality of constituent elements arranged in the front-rear direction, and the other of the center indicating section 71 and the side indicating section 72 may be formed of a line extending in the front-rear direction. Specifically, the center indicating section 71 is formed of an aggregate of center constituent elements 71C arranged in the front-rear direction L, and the side indicating section 72 is formed of a linear line extending in the front-rear direction L. According to the indicating portion of modification 3, the assistant can distinguish the center indicating portion 71 and the side indicating portion 72. The center component 71C of modification 3 includes a star-shaped pattern. The assistant can distinguish the center indication part 71 and the side indication part 72 according to the presence or absence of the pattern. Therefore, the assistant can easily grasp the reaction state of the indicating portion 70 and the urine output properly.

In another modification, the side indicating portion 72 may be formed of an assembly of a plurality of constituent elements arranged in the front-rear direction, and the center indicating portion 71 may be formed of a linear or curved line extending in the front-rear direction.

Fig. 6 (a) shows an indicator 704 according to modification 4. The length L71C in the front-rear direction of the center component 71C in modification 4 is different from the length L72C in the front-rear direction of the side component 72C, and the distance G71 in the front-rear direction of the center component 71C is different from the distance G72 in the front-rear direction of the side component 72C. Specifically, the length L71C in the front-rear direction of the center component 71C is longer than the length L72C in the front-rear direction of the side component 72C, and the distance G71 in the front-rear direction of the center component 71C is shorter than the distance G72 in the front-rear direction of the side component 72C.

Fig. 6 (b) shows an instruction unit 705 according to modification 5. One of the center indicator portion 71 and the side indicator portion 72 is linear, and the other of the center indicator portion 71 and the side indicator portion 72 is curved. Specifically, the center indicating portion 71 is linear along the front-rear direction, and the side indicating portions 72 are curved inward in the width direction. In another modification, the side indicating portions 72 may be linear along the front-rear direction, and the center indicating portion 71 may be curved.

Fig. 6 (c) shows an indication unit 706 according to modification 6. The length of the center indicating portion 71 in the width direction in modification 6 changes, and the length of the side indicating portions 72 in the width direction changes. The length W71 in the width direction of the center indicator 71 on an arbitrary first imaginary line VL1 constituting the imaginary lines is longer than the length W72 in the width direction of the side indicator 72, and the length W71 in the width direction of the center indicator 71 on an arbitrary second imaginary line VL2 is shorter than the length W72 in the width direction of the side indicator 72.

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 description of the claims. Accordingly, the description is to be regarded as illustrative in nature and not as restrictive.

In addition, the entire contents of japanese utility model registration application No. 2018-004159, filed on 25/10/2018, and japanese patent application No. 2018-216478, filed on 19/11/2018, are incorporated by reference in the present specification.

Industrial applicability

According to the present invention, it is possible to provide an absorbent article in which an assistant can appropriately grasp the urine output by the indicating portion and perform replacement of the absorbent article at an appropriate timing.

Description of the reference numerals

10. Absorbent article

31. Absorbent core

41. Narrow slit (deformation guide part)

42. Elastic component (deformation guide part)

70. Indicating part

71. Center indicator

71C center component (component of center indicator)

72. Side indicator

72C side surface component (component of side surface indicating part)

90. Adhesive fastening tape

S1 front waistline region

S2 rear waistline region

S3 crotch region

Virtual line VL

Claims

1. An absorbent article comprising:

a front-back direction and a width direction orthogonal to each other;

a front waistline region, a rear waistline region, and a crotch region disposed between the front waistline region and the rear waistline region;

an absorbent core; and

an indicator portion which is disposed on a non-skin surface side of the absorbent core so as to extend in the front-rear direction and which changes color when contacted with moisture,

wherein the indicating portion has a center indicating portion disposed at a center of the absorbent article in the width direction and a pair of side indicating portions disposed outside the center indicating portion in the width direction,

the central indicator portion and the side indicator portions are visually different after being discolored by contact with moisture,

the center indication part and the side indication parts are formed by an aggregate of a plurality of components arranged along the front-back direction,

the components of the center indicating portion are visually different from the components of the side indicating portions,

the components of the central indicating part and the components of the side indicating parts are not related to each other,

the components that are not related to each other are components that classify a pattern into a plant, an animal, a person, food, an abstract pattern and the classification is different,

a deformation guide portion that deforms the absorbent core in a thickness direction is provided in a region between the center indication portion and the side indication portions in the width direction,

an absorbent material is disposed at the deformation guide,

at least a part of the deformation guide overlaps the center indication part and the side indication part.

2. An absorbent article comprising:

a front-back direction and a width direction orthogonal to each other;

an absorbent core; and

the center indicating section and the side indicating sections are formed of an aggregate in which a plurality of constituent elements are arranged in the front-rear direction,

the center indication part and the side indication parts are arranged within a range of 30mm including the center in the width direction of the absorbent article and a range of 30mm including the center in the front-rear direction of the absorbent article,

the center indication part and the side indication parts are configured to be capable of respectively recognizing one or two components from the range of 30mm,

the length of the components in one direction is in the range of 9 to 29mm, and the distance between the components is 1 to 21mm.

3. The absorbent article according to claim 1 or 2, wherein, on an imaginary line of the crotch region along the width direction, a length in the width direction of the center indicator is different from a length in the width direction of the side indicator on the imaginary line.

4. The absorbent article according to claim 1 or 2, wherein the maximum length in the width direction of the center indicator is longer than the maximum length in the width direction of the side indicators.

5. The absorbent article according to claim 1 or 2, wherein the constituent element comprises a pattern.

6. The absorbent article according to claim 1 or 2, wherein the maximum length of the constituent elements of the center indicating portion is different from the maximum length of the constituent elements of the side indicating portions.

7. The absorbent article according to claim 1 or 2, wherein the center indicator and the side indicators are arranged at least in the crotch region and the front waist region,

the front end edge of the center indicating portion is located on the front side of the front end edge of the side indicating portion.