Disposable diaper and package of disposable diaper

Abstract

The utility model relates to a disposable diaper and a package of the disposable diaper, and provides the disposable diaper which is easy for a wearer to master the performance of the diaper during wearing operation. The disposable diaper (1) has an absorbent core and a performance identification part (70) showing the performance of the disposable diaper. The performance identification part (70) can be visually recognized from the skin-side surface of the disposable diaper. A disposable diaper package (100) is provided with a disposable diaper (1) and a storage body (110) that stores a plurality of disposable diapers. The outer surface of the storage body is provided with a storage identification part (120) which identifies the performance of the disposable diaper.

Description

Technical Field

[0001] The present utility model relates to a disposable diaper having a performance identification portion showing the performance of the disposable diaper. Background Art

[0002] A disposable diaper having a colored portion is disclosed in Patent Document 1. The colored portion is configured to be visually recognizable from the non-skin side surface.

[0003] Prior Art Documents

[0004] Patent Documents

[0005] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2017-64132 Summary of the Utility Model

[0006] Problems to be Solved by the Utility Model

[0007] In the wearing operation of a disposable diaper, the following situation exists: The person assisting in wearing is likely to focus on the skin side surface of the disposable diaper and it is difficult to notice the existence of the colored portion disposed on the non-skin side surface of the disposable diaper. Especially when the wearer of the disposable diaper is an infant or a person in need of care, since the person assisting in wearing does not wear the disposable diaper himself / herself, it is particularly easy to focus on the skin side surface of the disposable diaper that is in direct contact with the skin of the wearer during the wearing operation. In addition, when the wearer of the disposable diaper is an infant or a person in need of care, depending on the person assisting in wearing, it is difficult for the person assisting in wearing to grasp the actual wearing feeling and functions of the disposable diaper by himself / herself, and thus there is a need to grasp the performance of the disposable diaper during the wearing operation.

[0008] The present utility model has been completed in view of such problems, and provides a disposable diaper in which a person assisting in wearing can easily grasp the performance of the diaper during the wearing operation.

[0009] Solutions to Solve the Problems

[0010] A disposable diaper according to one aspect has an absorbent core and a performance identification portion showing the performance of the disposable diaper. The performance identification portion is visually recognizable from the skin side surface of the disposable diaper. The performance identification portion is provided in a region overlapping with the absorbent core.

[0011] A package of a disposable diaper according to one aspect has a disposable diaper and a storage body for storing a plurality of disposable diapers. A storage identification portion for identifying the performance of the disposable diaper is provided on an outer surface of the storage body. Brief Description of the Drawings

[0012] Figure 1 It is a schematic front view of a disposable diaper 1 according to the first embodiment.

[0013] Figure 2 is a top view of the disposable diaper 1 of the first embodiment in an unfolded and stretched state.

[0014] Figure 3 is along Figure 2 a cross-sectional view taken along line A-A shown.

[0015] Figure 4 is a top view of the disposable diaper 1X of the second embodiment in an unfolded state.

[0016] Figure 5 is a view schematically showing the package 100 of the disposable diaper.

[0017] Explanation of reference numerals

[0018] 1, 1X, disposable diaper; 21, absorbent core; 31, surface sheet (skin sheet, outer surface sheet); 32B, main body outer sheet (non-skin sheet, outer surface sheet); 35, air-permeable opening; 55, skin side sheet (skin sheet, outer surface sheet); 56, non-skin side sheet (non-skin sheet, outer surface sheet); 56f, folded-back portion (skin sheet, outer surface sheet); 70, 70X, performance marking portion; 75, outer marking portion; 100, package; 110, storage body; 120, storage marking portion; FL, crease; L, front-rear direction; T, thickness direction; T1, skin side; T2, non-skin side; W, width direction. Detailed embodiments

[0019] (1) Summary of the embodiment

[0020] According to the description of this specification and the drawings, at least the following matters are clarified.

[0021] The technical solution of Mode 1 is a disposable diaper. The disposable diaper has an absorbent core and a performance marking portion showing the performance of the disposable diaper. The performance marking portion can be visually recognized from the skin side surface of the disposable diaper. The performance marking portion is provided in a region overlapping with the absorbent core. According to this mode, it is easy for the wearer to recognize the performance marking portion when visually recognizing it from the skin side of the disposable diaper during the wearing operation. The performance marking portion shows the performance of the disposable diaper. Therefore, the wearer can recognize the performance marking portion during the wearing operation, and thus can grasp the performance of the diaper based on the performance marking portion.

[0022] According to a preferred embodiment, for the technical solution of Mode 2, the following features may be included in the technical solution of Mode 1. The disposable diaper is folded with the crease as a reference point before use. The performance identification portion cannot be visually recognized from the non-skin side surface of the disposable diaper in the folded state with the crease as a reference point. According to this mode, the caregiver cannot visually recognize the performance identification portion in the folded state which is a stage before the wearing operation, and can visually recognize the performance identification portion when visually recognizing the skin side surface of the diaper during the wearing operation. Since the visual recognition of the performance identification portion changes during the wearing operation, it is easier for the caregiver to identify the performance identification portion, and the caregiver can further grasp the performance of the diaper based on the performance identification portion.

[0023] According to a preferred embodiment, for the technical solution of Mode 3, the following features may be included in the technical solution of Mode 1 or Mode 2. The disposable diaper has an outer identification portion which shows the performance of the disposable diaper and can be visually recognized from the non-skin side surface of the disposable diaper in the folded state. According to this mode, although the caregiver cannot visually recognize the performance identification portion from the outside of the diaper in the folded state, the caregiver can visually recognize the outer identification portion. Therefore, the caregiver can grasp the performance of the diaper based on the outer identification portion in the folded state.

[0024] According to a preferred embodiment, for the technical solution of Mode 4, the following features may be included in any one of the technical solutions of Mode 1 to Mode 3. The performance identification portion is provided on at least one of the skin surface sheet and the intermediate sheet. The skin surface sheet is disposed on the skin side surface of the disposable diaper, and the intermediate sheet is disposed at a position closer to the non-skin side than the skin side surface of the disposable diaper and closer to the skin side than the absorbent core. The performance identification portion provided on the skin surface sheet can be directly visually recognized by the caregiver. In addition, the performance identification portion provided on the intermediate sheet is not covered by the absorbent core, and it is easy for the caregiver to visually recognize the performance identification portion through the skin surface sheet or the like. By providing the performance identification portion on at least one of the skin surface sheet and the intermediate sheet, it is easy to ensure the visual recognition of the performance identification portion when visually recognizing from the skin side of the disposable diaper.

[0025] According to a preferred embodiment, for the technical solution of Mode 5, the following features may be included in any one of the technical solutions of Mode 1 to Mode 4. The performance identification portion shows the material of the constituent members constituting the disposable diaper. According to this mode, the caregiver can grasp the material of the constituent members through the performance identification portion.

[0026] According to a preferred mode, for the technical solution of Mode 6, the following features may be provided in the technical solution of Mode 5. The performance identification part is provided on a constituent member whose material is indicated by the performance identification part. According to this mode, by providing the performance identification part on the constituent member whose material is indicated by the performance identification part, the wear assistor can visually recognize the constituent member of this material by paying attention to the performance identification part, and can easily identify the material and the constituent member in an associated manner.

[0027] According to a preferred mode, for the technical solution of Mode 7, the following features may be provided in any one of the technical solutions of Modes 1 to 4. The disposable diaper has an outer surface sheet disposed on the skin side surface or the non-skin side surface of the disposable diaper. A plurality of air vents penetrating in the thickness direction are formed in the outer surface sheet. The performance identification part indicates the air permeability of the outer surface sheet. According to this mode, the wear assistor can grasp the air permeability of the outer surface sheet through the performance identification part.

[0028] According to a preferred mode, for the technical solution of Mode 8, the following features may be provided in the technical solution of Mode 7. The disposable diaper has a cover sheet covering the inner surface in the thickness direction of the outer surface sheet. The cover sheet has a colored part with a color different from that of the outer surface sheet. The colored part of the cover sheet covers the surface of the inner surface in the thickness direction of the air vent. According to this mode, the cover sheet can be used to make the air vents of the outer surface sheet conspicuous. That is, the outer surface sheet and the cover sheet can be used to constitute a performance identification part indicating the air permeability of the outer surface sheet.

[0029] According to a preferred mode, for the technical solution of Mode 9, the following features may be provided in any one of the technical solutions of Modes 1 to 4. The disposable diaper has a skin surface sheet disposed on the skin side surface of the disposable diaper. Ridges for diffusing body fluid in the plane direction are provided in the skin surface sheet. The performance identification part indicates the diffusion performance of the body fluid in the skin surface sheet. According to this mode, the wear assistor can grasp the diffusion performance of the skin surface sheet through the performance identification part.

[0030] According to a preferred mode, for the technical solution of Mode 10, the following features may be provided in any one of the technical solutions of Modes 1 to 4. The performance identification part indicates the absorption performance of the absorbent core. According to this mode, the absorption performance of the absorbent core can be indicated by the performance identification part. In addition, since the performance identification part overlaps with the absorbent core, it is easy to identify the absorption performance indicated by the performance identification part in association with the absorbent core.

[0031] According to a preferred mode, for the technical solution of Mode 11, the technical solutions of any one of Modes 1 to 10 may have the following features. The performance identification part is a printing part printed on a fiber sheet having fibers. According to this mode, the soft texture of the fibers can be displayed to the wear assistor together with the performance identification part by the printing part provided on the fiber sheet, so that the wear assistor can more easily obtain a sense of security regarding the performance of the diaper.

[0032] According to a preferred mode, for the technical solution of Mode 12, the technical solution of Mode 11 may have the following features. The printing part is provided on the non-skin side surface of the fiber sheet. According to this mode, the printing part printed on the fiber sheet is not easily attached to the skin. It is particularly preferable for a structure in which the printing part is provided on the skin-facing sheet.

[0033] According to a preferred mode, for the technical solution of Mode 13, the technical solutions of Mode 11 or Mode 12 may have the following features. The performance identification part is a colored area obtained by coloring a local area of the fiber sheet. According to this mode, the part having any performance in the disposable diaper can be shown by the colored area.

[0034] According to a preferred mode, for the technical solution of Mode 14, the technical solutions of any one of Modes 1 to 10 may have the following features. The performance identification part is composed of a colored sheet having colored fibers. By forming the performance identification part with the colored sheet, it is easy to be provided over the entire sheet in an area larger than the printing part, making it easy for the wear assistor to identify.

[0035] Mode 15 is the packaging of a disposable diaper. The packaging of the disposable diaper has a disposable diaper and a storage body for storing a plurality of the disposable diapers. A storage identification part for identifying the performance of the disposable diaper is provided on the outer surface of the storage body. According to this mode, the wear assistor can visually recognize the storage identification part when taking out the disposable diaper from the storage body before the wearing operation, so that the performance of the disposable diaper can be grasped. In addition, the performance identification part can be visually recognized during the wearing operation, so that the performance of the disposable diaper can be re-identified while performing the wearing operation.

[0036] According to a preferred mode, for the technical solution of Mode 16, the following features may be included in the technical solution of Mode 15. The storage identification portion has the same shape or a similar shape as the performance identification portion. According to this mode, since the storage identification portion and the performance identification portion have the same shape or a similar shape, the wear assistor can identify the storage identification portion and the performance identification portion in an associated manner. Therefore, when the wear assistor takes out the disposable diaper from the storage body before the wearing operation, etc., the storage identification portion can be visually recognized, so that the performance of the disposable diaper can be grasped. And during the wearing operation, the performance identification portion having the same or a similar shape as the storage identification portion that has been visually recognized can be visually recognized, so that the wearing operation can be performed while re-identifying the performance of the disposable diaper.

[0037] (2) Disposable Diaper of the Embodiment

[0038] The disposable diaper 1 of the embodiment will be described below with reference to the drawings. In addition, in the following descriptions of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic diagrams, and the ratios of the respective dimensions, etc. are different from the actual situation. Therefore, specific dimensions, etc. should be judged with reference to the following descriptions. Also, there may be parts with different relationships and ratios of the dimensions between the drawings.

[0039] The disposable diaper 1 is a disposable diaper capable of absorbing the excrement of the wearer. The disposable diaper 1 can be for infants or for the elderly. The disposable diaper can be a disposable diaper worn by a wear assistor (such as parents, nursery teachers, caregivers, etc.) on the wearer. The disposable diaper can be in a belt shape or a panty shape. The disposable diaper 1 of the present embodiment is a panty-shaped disposable diaper for infants. Figure 1 It is a schematic front view of the disposable diaper 1 of the embodiment. Figure 2 It is a schematic top view obtained by observing the unfolded and elongated state of the disposable diaper 1 of the embodiment from the skin side T1.

[0040] Figure 2The illustration of the unfolded and stretched state shows the stretched state in which the disposable diaper 1 is stretched to a state without wrinkles in a state where the side joint portion 60 described later is unfolded. The "stretched state" in the present application means a state in which the whole (the whole product) is stretched to a state without wrinkles. Specifically, it means a state in which the dimensions of the respective members constituting the disposable diaper 1 become the same as or close to the dimensions of the members alone. In addition, the "natural state" means the state when the disposable diaper 1 has been placed for a predetermined time. For example, the waist portion of the disposable diaper 1 in the state of the product taken out from the package is pulled outward in the left and right directions so that the waist portion is in a "stretched state". After maintaining this stretched state for 15 seconds, the pulling of the disposable diaper 1 is released and it is placed on a flat surface such as a table. Then, the state after 5 minutes in such a flat placement on the plane is set as the natural state.

[0041] The disposable diaper 1 has a front waist region S1, a rear waist region S2, and a crotch region S3. The front waist region S1 is the region facing the front waist (abdomen) of the wearer. The rear waist region S2 is the region facing the rear waist (back) of the wearer. The crotch region S3 is located in the crotch of the wearer and is the region disposed between the front waist region S1 and the rear waist region S2. The crotch region S3 may also be the region provided with the leg openings 66.

[0042] As Figure 1 shown, a side joint portion 60 may be provided that joins the end portions in the width direction W of the front waist region S1 (front outer body 51) and the end portions in the width direction W of the rear waist region S2 (rear outer body 52). The side joint portion 60 is defined by a portion that engages the outer side portion of the front waist region S1 and the outer side portion of the rear waist region S2 with each other. In a state where the side joint portion 60 is formed, a waist opening 62 is formed in the disposable diaper 1, which allows the trunk of the wearer to pass through and surrounds the waist of the wearer; and a pair of leg openings 66, which allow the legs of the wearer to be inserted respectively and surround the leg circumferences of the wearer. The waist opening 62 may be defined by the front end edge of the front waist region S1 and the rear end edge of the rear waist region S2. Figure 2 The state of unfolding the disposable diaper 1 by releasing the joint at the side joint portion 60 is shown.

[0043] In addition, the outer portion in the present application refers to a portion that occupies a certain range in the width direction W including the outer edge in the width direction W, and the outer edge refers to the outer edge in the width direction W. The inner portion in the present application refers to a portion that occupies a certain range in the width direction W including the inner edge in the width direction W, and the inner edge refers to the inner edge in the width direction W. Additionally, the front end portion and the rear end portion in the present application are portions that occupy a certain range in the front-rear direction L including the edges in the front-rear direction L, and the front edge and the rear edge refer to the edges in the front-rear direction L. The outer end portion includes the front end portion and the rear end portion, and the outer edge includes the front edge and the rear edge.

[0044] The disposable diaper 1 may have an outer cover 50 and an absorbent main body 15. The outer cover 50 may have a portion disposed at a position closer to the non-skin side T2 than the absorbent main body 15, and at least cover the waist of the wearer. A part of the outer cover 50 may be disposed at a position closer to the skin side T1 than the absorbent main body 15. The outer cover 50 may have a front outer cover 51 disposed in the front waist region S1 and a rear outer cover 52 disposed in the rear waist region S2. The front outer cover 51 and the rear outer cover 52 may be disposed separately in the front-rear direction L. In a modified example, the front outer cover 51 and the rear outer cover 52 may also be integrated. The front outer cover 51 and the rear outer cover 52 may have: a skin side sheet 55 disposed on the skin side T1 in the thickness direction T; a non-skin side sheet 56 laminated adjacent to the non-skin side of the skin side sheet 55; and an elastic waist member 58 such as a rubber band disposed between the skin side sheet 55 and the non-skin side sheet 56 (see Figure 3 ).

[0045] The skin side sheet 55 and the non-skin side sheet 56 are sheet members having a rectangular shape in plan view, and may be formed of a non-woven fabric such as SMS non-woven fabric, for example. The outer end portion of the non-skin side sheet 56 in the front-rear direction L may have a folded-back portion 56f that folds back from the non-skin side T2 toward the skin side T1 and from the outside toward the inside in the front-rear direction L. The region of the skin side sheet 55 not covered by the folded-back portion 56f and the folded-back portion 56f are disposed on the skin side surface of the disposable diaper, constituting the "skin surface sheet" of the present application. However, the folded-back portion 56f may not necessarily be provided. In a mode without the folded-back portion 56f, the entire region of the skin side sheet 55 may constitute the "skin surface sheet" of the present application.

[0046] The waist elastic member 58 is an elastic member that is disposed along the width direction W and can expand and contract in the width direction. In this embodiment, a white rubber band is used. A plurality of waist elastic members 58 are arranged in the front-rear direction L between the skin side sheet 55 and the non-skin side sheet 56 and are installed in a state of being stretched along the width direction W. Due to the elasticity exhibited by the waist elastic member 58, the front waist region S1 and the rear waist region S2 are attached to the wearer's waist. In addition, although the disposable diaper 1 of this embodiment is provided with the waist elastic member 58, it is not limited to a rubber band, and an elastic member such as an elastic sheet may be disposed to enable the front waist region S1 and the rear waist region S2 to expand and contract in the left-right direction.

[0047] The absorbent main body 15 can be disposed throughout the front waist region S1, the rear waist region S2, and the crotch region S3. It is possible that the absorbent main body 15 is separately formed with respect to the front outer package 51 and the rear outer package 52 and is joined to the front outer package 51 and the rear outer package 52 in the front waist region S1 and the rear waist region S2, respectively. It is possible that the absorbent main body 15 includes at least an absorbent core 21, a surface sheet 31 disposed at a position closer to the skin side T1 than the absorbent core 21, and a back sheet 32 disposed at a position closer to the non-skin side T2 than the absorbent core 21.

[0048] The absorbent core 21 may contain, for example, pulverized pulp or superabsorbent polymer (SAP), or a mixture thereof. The absorbent core 21 may be covered with a core wrap sheet. The surface sheet 31 may be a liquid-permeable sheet. The surface sheet 31 is disposed on the skin side surface of the disposable diaper and constitutes the "skin surface sheet" of the present application. The back sheet 32 may have a liquid-impermeable leak-proof sheet 32A and a main body outer sheet 32B disposed at a position closer to the non-skin side than the leak-proof sheet 32A. It is possible that the leak-proof sheet 32A is made of a film and the main body outer sheet 32B is made of a non-woven fabric.

[0049] It is possible to provide a ridge portion on the skin surface sheet (for example, the surface sheet) that allows body fluid to diffuse in a planar direction. The ridge portion may be a ridge portion formed by a convex portion protruding toward the skin side T1 and a concave portion recessed from the convex portion. The convex portion and the concave portion may extend in the front-rear direction L and be arranged in the width direction W, and may be configured to allow body fluid to diffuse in the front-rear direction L. By providing the ridge portion on the skin surface sheet, the diffusibility of body fluid in the planar direction can be improved.

[0050] The disposable diaper has an outer surface sheet disposed on the skin side surface or the non-skin side surface of the disposable diaper. The outer surface sheet is a concept including a "skin surface sheet" and a "non-skin surface sheet". The skin surface sheet is a sheet disposed on the skin side T1 surface of the disposable diaper 1 and can be exemplified by the surface sheet 31 and the skin side sheet 55. The non-skin surface sheet is a sheet disposed on the non-skin side T2 surface of the disposable diaper and can be exemplified by the non-skin side sheet 56 and the main body outer sheet 32B.

[0051] The disposable diaper 1 can be folded with the crease FL as a reference point before use. The crease FL can be a crease located at the center in the front-back direction L of the disposable diaper 1 and extending in the width direction W. It can be that the disposable diaper 1 is folded with the crease FL as a reference point so that the surface of the skin side T1 of the front waist region S1 and the surface of the skin side T1 of the back waist region S2 overlap. For the disposable diaper 1, it can be either that it is joined by the side joint portion 60 in the state of being folded with the crease FL as a reference point and is joined by the side joint portion 60 both before use and during wearing (it can be an underwear-type disposable diaper), or it can be configured such that it is not joined by the side joint portion 60 in the state of being folded with the crease FL as a reference point and is unfolded with the crease FL as a reference point during wearing (it can be a belt-type disposable diaper).

[0052] The disposable diaper 1 has a performance identification portion 70 that shows the performance of the disposable diaper. Here, the performance of the disposable diaper 1 includes: the material of the constituent members (such as the surface sheet) that make up the disposable diaper (such as having cotton), the characteristics of the constituent members (such as a gentle touch for skin care and good liquid introduction), the use of the disposable diaper (such as for infants), the characteristics of the disposable diaper (such as good air permeability and good liquid diffusibility), and the functional agents attached to the disposable diaper and their performance (such as olive oil, modifiers). The performance identification portion 70 is an identification that shows the above-mentioned performance of the disposable diaper 1 through text, design, color, and their combinations. The performance identification portion 70 can be either an identification that conveys the performance of the disposable diaper 1 through text or the like, or an identification that prompts the performance through a design associated with the performance. The performance identification portion 70 of the present embodiment is a design of cotton attached to the non-skin side T2 surface of the surface sheet 31 and is an identification that prompts the cotton fibers contained in the surface sheet 31.

[0053] The performance identification portion 70 can be visually recognized from the skin side T1 surface of the disposable diaper 1. Therefore, the person assisting with wearing can easily recognize the performance identification portion 70 when visually recognizing it from the skin side T1 of the disposable diaper 1 during the wearing operation, and can grasp the performance of the diaper 1 based on the performance identification portion 70.

[0054] It can be that the performance identification portion 70 cannot be visually recognized from the non-skin side T2 surface of the disposable diaper 1 in the folded state of being folded with the crease FL as a reference point. According to this method, the performance identification portion 70 cannot be visually recognized in the folded state, which is the stage before the wearing operation, and can be visually recognized when visually recognizing the skin side T1 surface of the diaper for the purpose of the wearing operation. Since the visual recognition of the performance identification portion 70 changes during the wearing operation, the person assisting with wearing can more easily recognize the performance identification portion 70 and can further grasp the performance of the diaper based on the performance identification portion 70.

[0055] In addition, the "state visually recognizable from the skin side of the disposable diaper" in the present application may be such that the visible light transmittance in a state where a member located at a position T1 closer to the skin side than the object for evaluating visual recognition (e.g., the performance identification portion) is overlapped is 60% or more. In addition, the state visually recognizable from the skin side of the disposable diaper 1 represents the following state: in a room brightly illuminated with daylight color (color temperature reference value 4600 to 5400 K (Kelvin)) (reference value: 500 lx to 750 lx (lux)), a tester with good eyesight (1.0 or more) in both eyes can visually recognize the object when observing the object from the skin side T1 of the disposable diaper 1 at a distance of about 30 cm to 50 cm. In addition, the "state visually recognizable from the skin side of the disposable diaper" may be a state visually recognizable from the skin side of the disposable diaper in the extended state or a state visually recognizable from the skin side of the disposable diaper in the natural state.

[0056] In addition, the "state not visually recognizable from the non-skin side T2 of the disposable diaper 1" in the present application may be such that the visible light transmittance in a state where a member located at a position T2 closer to the non-skin side than the object for evaluating visual recognition (e.g., the performance identification portion) is overlapped is 20% or less. In addition, the state not visually recognizable from the non-skin side of the disposable diaper 1 represents the following state: in a room brightly illuminated with daylight color (color temperature reference value 4600 to 5400 K (Kelvin)) (reference value: 500 lx to 750 lx (lux)), a tester with good eyesight (1.0 or more) in both eyes cannot visually recognize the object from the non-skin side T2 of the disposable diaper 1 at a distance of about 30 cm to 50 cm. In addition, the "state not visually recognizable from the non-skin side of the disposable diaper" may be a state not visually recognizable from the non-skin side of the disposable diaper in the extended state or a state not visually recognizable from the non-skin side of the disposable diaper in the natural state.

[0057] The performance identification portion 70 may be provided in at least one of the skin surface sheet and the intermediate sheet. The skin surface sheet is disposed on the surface of the disposable diaper 1 on the skin side T1, and the intermediate sheet is disposed at a position closer to the skin side T1 than the surface of the disposable diaper 1 on the skin side T1 and closer to the skin side T1 than the absorbent core 21 on the non-skin side T2. The performance identification portion 70 provided on the skin surface sheet can be directly visually recognized by the caregiver. In addition, the performance identification portion provided on the intermediate sheet is not covered by the absorbent core, and it is easy for the caregiver to visually recognize the performance identification portion through the skin surface sheet or the like. By providing the performance identification portion 70 in at least one of the skin surface sheet and the intermediate sheet, it is easy to ensure the visual recognition of the performance identification portion 70 when visually recognized from the skin side T1 of the disposable diaper 1. In addition, the intermediate sheet may be disposed between the skin surface sheet and the absorbent core, for example, a core wrap sheet covering the skin side of the absorbent core and a second sheet covering the non-skin surface of the surface sheet can be exemplified.

[0058] The disposable diaper 1 may have an outer identification portion 75 that shows the performance of the disposable diaper 1 and can be visually recognized from the non-skin side T2 surface of the disposable diaper 1 in the folded state. According to this structure, although the caregiver cannot visually recognize the performance identification portion 70 from the outside of the diaper in the folded state, the outer identification portion 75 can be visually recognized. Therefore, in the folded state, the caregiver can grasp the performance of the diaper based on the outer identification portion. The outer identification portion may be such that it can be visually recognized from the non-skin side surface of the disposable diaper in the folded state and cannot be visually recognized from the skin side of the disposable diaper. Since the caregiver cannot visually recognize the outer identification portion 75 but can only visually recognize the performance identification portion 70 when visually recognizing from the skin side T1 of the disposable diaper, it is not easy to confuse the performance identification portion 70 and the outer identification portion 75, and it is easier to identify the performance identification portion 70.

[0059] The outer identification portion 75 may be configured to be visually recognizable from the non-skin side T2 of the disposable diaper 1. For example, it may be a printed portion printed on the back sheet 32, or may be composed of a colored sheet obtained by coloring the back sheet 32 itself. It may also be a printed portion printed on the sheets (skin side sheet 55 and non-skin side sheet 56) constituting the outer package 50, or may be composed of a colored sheet obtained by coloring the sheets constituting the outer package 50 itself. It may also be composed of a colored portion obtained by coloring a stretchable member such as the waist elastic member 58.

[0060] The outer identification portion 75, like the performance identification portion 70, is an identification showing the performance of the disposable diaper and can adopt the structure of the performance identification portion 70. In the mode having both the outer identification portion 75 and the performance identification portion 70, the outer identification portion 75 may have the same shape as the performance identification portion 70 or a similar shape. By the outer identification portion 75 and the performance identification portion 70 having the same shape or a similar shape, the caregiver can recognize the outer identification portion 75 and the performance identification portion 70 in an associated manner.

[0061] The performance identification part 70 can show the materials of the constituent members that make up the disposable diaper 1. According to this structure, the wearer can grasp the materials of the constituent members through the performance identification part 70. Similarly, the outer identification part 75 can also show the materials of the constituent members that make up the disposable diaper 1. Both the performance identification part 70 and the outer identification part 75 in the present embodiment show cotton, which indicates that the fiber of the surface sheet 31 is cotton. Preferably, the performance identification part 70 can be provided on the constituent member whose material is shown by the performance identification part 70. According to this structure, by providing the performance identification part 70 on the constituent member (such as the surface sheet) whose material is shown by the performance identification part 70, the wearer can visually recognize the constituent member of this material by paying attention to the performance identification part 70, and it is easy to associatively identify the material and the constituent member. The performance identification part 70 in the present embodiment is provided on the surface sheet 31 and shows the material of the surface sheet 31.

[0062] For a disposable diaper having a ridge and groove part on the skin-facing sheet, the performance identification part 70 can show the diffusion performance of body fluid in the skin-facing sheet. According to this structure, the wearer can grasp the diffusion performance of the skin-facing sheet through the performance identification part 70. Preferably, the performance identification part 70 can be provided on the constituent member having the diffusion performance of body fluid. According to this structure, by providing the performance identification part 70 on the constituent member whose diffusion performance is shown by the performance identification part 70, the wearer can visually recognize the constituent member by paying attention to the performance identification part 70, and it is easy to associatively identify the diffusion performance of body fluid and the constituent member.

[0063] The performance identification part 70 can be provided in the area that overlaps with the absorbent core 21 when viewed from above, and the performance identification part 70 can show the absorption performance of the absorbent core 21. According to this structure, the wearer can grasp the absorption performance of the absorbent core 21 through the performance identification part 70. In addition, since the performance identification part 70 overlaps with the absorbent core 21, it is easy for the wearer to associatively identify the absorption performance shown by the performance identification part 70 with the absorbent core 21. Examples of the performance identification part showing the absorption performance of the absorbent core 21 can include identification parts showing the shape and position of the compression part of the absorbent core 21, and identification parts showing the shape and position of the area where the absorption capacity in the absorbent core 21 is different from the surrounding area (such as the high unit area weight part, the low unit area weight part, the slit, etc.).

[0064] The performance identification unit 70 may be a printed unit printed on a fiber sheet having fibers. There has been a structure in the past where a design using printing is attached to the bottom film of a diaper, and the design can be visually recognized from the non-skin side of the diaper. Compared with this film printing, by attaching a printed unit to the fiber sheet, the soft texture of the fiber can be shown to the caregiver together with the performance identification unit, so that the caregiver can more easily obtain a sense of security about the performance of the diaper. In addition, the contact between the fiber sheet and the skin is soft and can form a skin-facing sheet. Therefore, by providing a printed unit on the fiber sheet that forms the skin-facing sheet, it is easier for the caregiver to recognize the performance identification unit when visually recognizing it from the skin side. In addition, the fiber is not particularly limited, and cotton fiber and thermoplastic resin fiber can be exemplified. The fiber sheet can be exemplified by a non-woven fabric or a fabric. Preferably, the printed unit may be provided on the non-skin side surface of the fiber sheet. The printed unit printed on the fiber sheet is not easily attached to the skin. This is particularly preferable for a structure in which a printed unit is provided on the skin-facing sheet.

[0065] The performance identification unit 70 formed by the printed unit may be a colored area obtained by coloring a partial area of the fiber sheet. According to this structure, the part having any performance in the disposable diaper 1 (for example, the area for absorbing soft feces) can be shown by the colored area.

[0066] The performance identification unit 70 may be a structure other than the printed unit. Specifically, the performance identification unit 70 may be composed of a colored sheet having colored fibers. The colored sheet only needs to have at least a part of the fibers constituting the sheet colored in a predetermined color. According to the performance identification unit 70 composed of the colored sheet, by forming the performance identification unit with the colored sheet, it is easy to be provided on the entire sheet in an area larger than that of the printed unit, making it easy for the caregiver to recognize.

[0067] Next, based on Figure 4 The disposable diaper 1X of the second embodiment will be described. In addition, in the following description, the same reference numerals are used for the same structures as those in the above-described embodiment, and the description thereof is omitted. Figure 4 is a top view of the unfolded state of the disposable diaper 1X of the second embodiment. A plurality of air vents 35 penetrating in the thickness direction are formed on the outer surface sheet of the disposable diaper 1X. The air vents 35 of the present embodiment are formed in the surface sheet 31 which is the outer surface sheet. The performance identification unit 70X can show the air permeability of the outer surface sheet.

[0068] Preferably, the performance identification portion 70X may be a structure that makes the ventilation opening 35 prominent. More specifically, it may be that a cover sheet (the core wrap sheet 33 in the second embodiment) covering the non-skin-facing surface of the outer surface sheet having the ventilation opening (the surface sheet 31 in the present embodiment) has a colored portion different in color from the outer surface sheet, and the colored portion covers the surface of the inner surface in the thickness direction of the ventilation opening. According to this structure, the ventilation opening 35 of the outer surface sheet can be made prominent by the cover sheet. That is, the outer surface sheet and the cover sheet can be used to form a performance identification portion showing the ventilation performance of the outer surface sheet.

[0069] In the second embodiment, the entire area of the core wrap sheet 33 covering the non-skin-facing surface of the surface sheet 31 having the ventilation opening 35 is colored. In the area where the core wrap sheet 33 overlaps with the ventilation opening 35, the color of the core wrap sheet 33 is visually recognized as being darker, and in the area where the core wrap sheet 33 does not overlap with the ventilation opening 35, the color of the core wrap sheet 33 is visually recognized as being lighter, thereby making the ventilation opening 35 prominent.

[0070] In addition, the colored portion of the cover sheet may be formed by printing or may be coloring of the fibers of the sheet material. Further, the colored portion may be provided on the entire cover sheet or on a partial area (for example, the area overlapping with the ventilation opening). Alternatively, the ventilation opening may be provided in the non-skin-side sheet 56 which is a non-skin-facing sheet, and the colors of the non-skin-side sheet 56 and the skin-side sheet 55 may be made different to make the ventilation opening of the non-skin-side sheet 56 prominent.

[0071] Next, Figure 5 The packaging (hereinafter referred to as the packaging) 100 of the disposable diaper will be described. The packaging 100 has a disposable diaper 1 and a storage body 110 that stores a plurality of disposable diapers 1. For the storage body 110, a sheet material such as a film may be formed into a bag shape, or it may be a box shape made of paper or the like. A storage identification portion 120 for identifying the performance of the disposable diaper is provided on the outer surface of the storage body 110. When taking out the disposable diaper 1 from the storage body 110 before the wearing operation, the wear assistance person can visually recognize the storage identification portion 120, and thus can grasp the performance of the disposable diaper 1. In addition, the performance identification portion 70 of the disposable diaper can be visually recognized during the wearing operation, so that the performance of the disposable diaper 1 can be re-identified while performing the wearing operation.

[0072] There are particularly the following situations: In disposable diapers for infants and young children, disposable diapers of different specifications (sizes, etc.) are changed as the child grows. In addition, disposable diapers of different specifications are sometimes selected according to the purpose of use such as sleeping or going out. When using disposable diapers of different specifications, there is sometimes a particular sense of unease about the performance of the disposable diapers. However, according to this disposable diaper, when using disposable diapers of different specifications, first, it is possible to select a disposable diaper while grasping the performance through the storage identification part 120, and when wearing the selected disposable diaper 1, the performance identification part 70 of the disposable diaper can be visually recognized, so that a sense of security about the performance of the disposable diaper can be obtained.

[0073] The storage identification part 120 can be the same shape as or a similar shape to the performance identification part 70. Since the storage identification part 120 and the performance identification part 70 are of the same shape or a similar shape, the person assisting with wearing can recognize the storage identification part 120 and the performance identification part 70 in association. Therefore, when the person assisting with wearing takes out the disposable diaper 1 from the storage body 110 before the wearing operation, etc., the storage identification part 120 can be visually recognized to grasp the performance of the disposable diaper, and during the wearing operation, the performance identification part 70 of the same or a similar shape as the storage identification part 120 that has already been visually recognized can be visually recognized, so that the wearing operation can be carried out while re-identifying the performance of the disposable diaper. In addition, in the package for storing a disposable diaper having an outer identification part 75, the storage identification part 120 can be the same shape as or a similar shape to the outer identification part 75.

[0074] The present application has been described in detail using the above-described embodiments. However, it is obvious to those skilled in the art that the present application is not limited to the embodiments described in this specification. The present application can be implemented as a modification and change plan without departing from the gist and scope of the present application determined by the claims. Therefore, the description in this specification is for the purpose of illustration and does not have any restrictive meaning for the present application.

Claims

1. A disposable diaper having an absorbent core, characterized in that: The disposable diaper has a performance indicator portion indicating the performance of the disposable diaper. The performance indicator portion can be visually recognized from the skin side of the disposable diaper. The performance identification portion is arranged in a region overlapping with the absorbent core.

2. The disposable diaper according to claim 1, characterized in that The disposable diaper is folded with the crease as a base point before use. The performance indicator portion cannot be visually recognized from the non-skin side surface of the disposable diaper in a folded state in which the fold is folded with the fold line as a base point.

3. The disposable diaper according to claim 2, characterized in that The disposable diaper has an outer side marking portion which indicates the performance of the disposable diaper and can be visually recognized from a non-skin side surface of the disposable diaper in the folded state.

4. The disposable diaper according to claim 1 or 2, characterized in that: The performance identification portion is arranged on at least one of the skin surface piece and the middle piece. The skin surface piece is arranged on the skin side of the disposable diaper, and the middle piece is arranged on the non-skin side of the disposable diaper than the skin side surface and closer to the skin side than the absorbent core.

5. The disposable diaper according to claim 1 or 2, characterized in that: The performance indicator portion indicates the material of a component constituting the disposable diaper.

6. The disposable diaper according to claim 5, characterized in that The performance indicator portion is provided on a component whose material is indicated by the performance indicator portion.

7. The disposable diaper according to claim 1 or 2, characterized in that: The disposable diaper comprises an outer surface sheet disposed on a skin-side surface or a non-skin-side surface of the disposable diaper. The outer surface sheet is provided with a plurality of ventilation holes penetrating in the thickness direction. The performance indicator portion indicates the air permeability of the outer surface sheet.

8. The disposable diaper according to claim 7, characterized in that The disposable diaper has a cover sheet covering the inner surface in the thickness direction of the outer sheet. The cover sheet has a colored portion having a color different from that of the outer surface sheet. The colored portion of the cover sheet covers an inner surface of the ventilation opening in the thickness direction.

9. The disposable diaper according to claim 1 or 2, characterized in that: The disposable diaper has a skin sheet disposed on a skin-side surface of the disposable diaper. The skin sheet is provided with grooves for diffusing body fluids in a planar direction. The performance indicator portion indicates the diffusion performance of body fluids in the skin sheet.

10. The disposable diaper according to claim 1 or 2, characterized in that: The performance identification portion indicates the absorption performance of the absorbent core.

11. The disposable diaper according to claim 1 or 2, characterized in that: The performance identification portion is a printed portion printed on a fiber sheet having fibers.

12. The disposable diaper according to claim 11, characterized in that The printing section is provided on the non-skin-side surface of the fiber sheet.

13. The disposable diaper according to claim 11, characterized in that The performance identification portion is a colored area obtained by coloring a local area of ​​the fiber sheet.

14. The disposable diaper according to claim 1 or 2, characterized in that: The performance identification portion is composed of a colored sheet having colored fibers.

15. A disposable diaper package comprising the disposable diaper according to any one of claims 1 to 11 and a storage body for storing a plurality of the disposable diapers, characterized in that: A storage marking portion for marking the performance of the disposable diaper is provided on an outer surface of the storage body.

16. The disposable diaper package according to claim 15, characterized in that: The storage identification portion has the same shape as or a similar shape to the performance identification portion.

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