Disposable diaper

Abstract

The disposable diaper (1) has a longitudinal direction, a width direction, and a thickness direction that intersect each other in an unfolded and stretched state, and comprises: a one-side waist part formed on one side of the longitudinal direction; the other side waist part is formed on the other side of the longitudinal direction; and a crotch. The disposable diaper is provided with an insect repellent (AM), and is characterized in that in a test for the number of insects attracted to the disposable diaper (1) within 20 minutes after the disposable diaper is taken out from a package, the number of insects is not less than the number of insects attracted to the disposable diaper (1) within 20 minutes after the disposable diaper is taken out from the package. The average number of insects fixed to the crotch portion is less than the average number of insects fixed to the one-side waist portion and the other-side waist portion.

Description

Technical Field

[0001] The present invention relates to a disposable diaper. Background Art

[0002] Conventionally, a disposable absorbent article for absorbing excrement such as feces and urine is known. Patent document 1 discloses a disposable absorbent article containing insect repellent microcapsules made by microencapsulating a substance exhibiting an insect repellent effect and known to effectively prevent pests from invading the absorbent article during circulation and storage.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application No. 2012-522618 Summary of the invention

[0006] Problem that the invention aims to solve

[0007] While wearing absorbent articles, the insect repellent effect of absorbent articles is also required. In particular, the target wearers of disposable diapers are infants and the elderly, and their legs (especially their thighs and calves) are more susceptible to insect bites than their faces. Therefore, the insect repellent effect of absorbent articles is also required during use, and as more substances showing insect repellent effect are provided in absorbent articles, the insect repellent effect will increase. However, there is a risk of increasing the manufacturing cost of absorbent articles.

[0008] The present invention has been achieved in view of conventional problems such as those described above, and an aspect of the present invention is to reduce the risk of excessive use of insect repellent in disposable diapers while effectively exhibiting an insect repellent effect on the leg area of ​​a wearer.

[0009] Solutions for solving problems

[0010] The main aspect of the present invention to achieve the above aspects is a disposable diaper, which has a longitudinal direction, a width direction and a thickness direction that intersect each other in an unfolded and stretched state, and the disposable diaper includes: a waist portion on one side, which is arranged on one side in the longitudinal direction; a waist portion on the other side, which is arranged on the other side in the longitudinal direction; and a crotch portion, the disposable diaper has an insect repellent, and when the disposable diaper is subjected to an attracted insect counting test within 20 minutes of taking the disposable diaper out of a package, the average number of attracted insects in the crotch portion is less than the average number of attracted insects in the waist portion on one side and the waist portion on the other side.

[0011] The main aspect of the present invention to achieve the above aspects is a disposable diaper having a longitudinal direction, a width direction and a thickness direction intersecting each other in an unfolded state and a stretched state, the disposable diaper comprising: a waist portion on one side arranged on one side in the longitudinal direction; a waist portion on the other side arranged on the other side in the longitudinal direction; and an absorbent core, the disposable diaper having an insect repellent, the disposable diaper having: a reference area which is a square having a length of 1 cm in both the longitudinal direction and the width direction, a comparison area which is a square having a length of 1 cm in both the longitudinal direction and the width direction, and The other side end area, the reference area overlaps with the absorbent core when observed in the thickness direction, the reference area is located between the center position of the disposable diaper and the other side end of the absorbent core in the longitudinal direction, the other side end area is the area from one side end to the other side end in the width direction of the other side waist portion, the other side end area is an area having a length of 1 cm on one side from the other side end of the disposable diaper, regardless of the position of the comparison area in the other side end area, the basis weight of the repellent in the reference area is higher than the basis weight of the repellent in the comparison area.

[0012] The main aspect of the present invention to achieve the above aspects is a disposable diaper, which has a longitudinal direction, a width direction and a thickness direction that intersect each other in an unfolded state and a stretched state, the disposable diaper including: a waist portion on one side, which is arranged on one side in the longitudinal direction; a waist portion on the other side, which is arranged on the other side in the longitudinal direction; and a crotch portion, the disposable diaper having an insect repellent, the crotch portion having: a non-skin side sheet portion, which is located closest to the non-skin side, and a skin side sheet portion, which is adjacent to the non-skin side sheet portion on the skin side, the non-skin side sheet portion and the skin side sheet portion being bonded by an adhesive, the crotch portion having a crotch region on one side and a crotch region on the other side, the crotch region on the one side being an area from one side end of the crotch portion to the center position of the disposable diaper in the longitudinal direction, the crotch region on the other side being an area from the other side end of the crotch portion to the center position of the disposable diaper in the longitudinal direction, the maximum value of the peeling strength between the non-skin side sheet portion and the skin side sheet portion in the entire crotch region on the other side being higher than the maximum value of the peeling strength between the non-skin side sheet portion and the skin side sheet portion in the entire crotch region on the one side.

[0013] Other features of the present invention than those described above will become apparent by reading the description of this specification with reference to the accompanying drawings.

[0014] Effects of the Invention

[0015] According to the present invention, there is provided a disposable diaper which can effectively exhibit an insect repellent effect on the leg area of ​​a wearer while reducing the risk of excessive use of an insect repellent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] [ Figure 1 ] Figure 1 1 is a schematic perspective view of a pull-on disposable diaper 1.

[0017] [ Figure 2 ] Figure 2 This is a diagram of the diaper 1 in the stored state as seen from the rear side.

[0018] [ Figure 3 ] Figure 3 1 is a schematic plan view of the diaper 1 in the unfolded and stretched state, viewed from the skin side.

[0019] [ Figure 4 ] Figure 4 yes Figure 3 Schematic cross-sectional view at the center line CC in.

[0020] [ Figure 5 ] Figure 5 It is an explanatory diagram illustrating the attracted insect counting test.

[0021] [ Figure 6 ] Figure 6 A shows the results of the attracted insect count test of Diaper 1 within 20 minutes after being taken out of the package. Figure 6 B shows the results of the attracted insect count test of Diaper 1 4 hours after being taken out of the package.

[0022] [ Figure 7 ] Figure 7 3 is an explanatory diagram illustrating the reference area aa and the comparison area ab.

[0023] [ Figure 8 ] Figure 8 It is an explanatory diagram illustrating each area of ​​the diaper 1.

[0024] [ Fig. 9 ] Fig. 9 It is an explanatory diagram illustrating each area of ​​the diaper 1. DETAILED DESCRIPTION

[0025] At least the following matters will be clear from the description of this specification and the accompanying drawings.

[0026] (Aspect 1)

[0027] A disposable diaper having a longitudinal direction, a width direction and a thickness direction intersecting each other in an unfolded and stretched state, the disposable diaper comprising: a waist portion on one side arranged on one side in the longitudinal direction; a waist portion on the other side arranged on the other side in the longitudinal direction; and a crotch portion, the disposable diaper having an insect repellent, and when the disposable diaper is subjected to an attracted insect counting test within 20 minutes of being taken out of a package, the average number of attracted insects in the crotch portion is less than the average number of attracted insects in the waist portion on one side and the waist portion on the other side.

[0028] According to the disposable diaper of aspect 1, it is possible to effectively exhibit the insect repellent effect on the leg area of ​​the wearer while reducing the risk of overuse of the insect repellent.

[0029] (Aspect 2)

[0030] A disposable diaper according to aspect 1, wherein when an attracted insect counting test of the disposable diaper is conducted 4 hours after the disposable diaper is taken out of the package, the average number of attracted insects in the crotch portion after 4 hours is less than the average number of attracted insects in the waist portion on one side and the waist portion on the other side after 4 hours.

[0031] According to the disposable diaper of aspect 2, it is possible to effectively exhibit the insect repellent effect on the leg area of ​​the wearer for a long period of time while reducing the risk of overuse of the insect repellent.

[0032] (Aspect 3)

[0033] A disposable diaper having a longitudinal direction, a width direction and a thickness direction intersecting each other in an unfolded and stretched state, the disposable diaper comprising: a waist portion on one side arranged on one side in the longitudinal direction; a waist portion on the other side arranged on the other side in the longitudinal direction; and an absorbent core, the disposable diaper having an insect repellent, the disposable diaper having: a reference area which is a square having a length of 1 cm in both the longitudinal direction and the width direction, a comparison area which is a square having a length of 1 cm in both the longitudinal direction and the width direction, and an end area on the other side, the reference area overlapping the absorbent core when viewed in the thickness direction, the reference area being located between a central position of the disposable diaper in the longitudinal direction and the other side end of the absorbent core, the end area on the other side being an area from one side end to the other side end in the width direction of the waist portion on the other side, the end area on the other side being an area having a length of 1 cm on the one side from the other side end of the disposable diaper, and the basis weight of the repellent in the reference area being higher than the basis weight of the repellent in the comparison area regardless of the position of the comparison area in the end area on the other side.

[0034] According to the disposable diaper of aspect 3, it is possible to effectively exhibit the insect repellent effect on the leg area of ​​the wearer while reducing the risk of overuse of the insect repellent.

[0035] (Aspect 4)

[0036] A disposable diaper according to aspect 3, wherein the center of the reference area is located between the central position of the disposable diaper and the position of the other side end of the absorbent core in the longitudinal direction, and is located in the center of the disposable diaper in the width direction, and regardless of the position of the comparison area in the other side end area, the basis weight of the repellent in the reference area is higher than the basis weight of the repellent in the comparison area.

[0037] According to the disposable diaper of aspect 4, it is possible to effectively exhibit the insect repellent effect on the leg area of ​​the wearer while reducing the risk of overuse of the insect repellent.

[0038] (Aspect 5)

[0039] A disposable diaper, which has a longitudinal direction, a width direction and a thickness direction that intersect each other in an unfolded and stretched state, the disposable diaper comprising: a waist portion on one side, which is arranged on one side in the longitudinal direction; a waist portion on the other side, which is arranged on the other side in the longitudinal direction; and a crotch portion, the disposable diaper having an insect repellent, the crotch portion having: a non-skin side sheet portion, which is located closest to the non-skin side, and a skin side sheet portion, which is adjacent to the non-skin side sheet portion on the skin side, the non-skin side sheet portion and the skin side sheet portion being bonded by an adhesive, the crotch portion having a crotch region on one side and a crotch region on the other side, the crotch region on one side being an area from one side end of the crotch portion to the central position of the disposable diaper in the longitudinal direction, the crotch region on the other side being an area from the other side end of the crotch portion to the central position of the disposable diaper in the longitudinal direction, the maximum value of the peeling strength between the non-skin side sheet portion and the skin side sheet portion in the entire crotch region on the other side being higher than the maximum value of the peeling strength between the non-skin side sheet portion and the skin side sheet portion in the entire crotch region on one side.

[0040] The higher the maximum value of the peel strength between the non-skin side sheet and the skin side sheet, the stronger the adhesion between the non-skin side sheet and the skin side sheet becomes. This makes it less likely that a space will be formed between the non-skin side sheet and the skin side sheet due to peeling. This can reduce the risk of the surface of the sheet forming unevenness due to the friction between the non-skin side sheet and the skin side sheet in the space between these sheets when worn. According to the disposable diaper of aspect 5, by making it less likely to form unevenness on the surface due to the peeling between the non-skin side sheet and the skin side sheet, the risk of insects such as mosquitoes landing on the other side crotch can be reduced, so that the insect repellent effect can be shown in the other side crotch area while allowing the amount of insect repellent used in the disposable diaper to be reduced.

[0041] (Aspect 6)

[0042] The disposable diaper according to aspect 5, wherein the maximum value of the basis weight of the repellent in the other side crotch region is higher than the maximum value of the basis weight of the repellent in the one side crotch region.

[0043] According to the disposable diaper of aspect 6, the formation of irregularities on the surface due to the peeling between the non-skin side sheet and the skin side sheet is reduced. This can reduce the risk of insects such as mosquitoes landing on the crotch portion on the waist side of one side, and combined with the effect of the insect repellent provided in the crotch area on one side, the insect repellent effect on one side of the diaper can be increased while reducing the risk of excessive use of the insect repellent.

[0044] (Aspect 7)

[0045] The disposable diaper according to aspect 5, wherein the maximum value of the basis weight of the repellent in the crotch region on the one side is higher than the maximum value of the basis weight of the repellent in the crotch region on the other side.

[0046] According to the disposable diaper of aspect 7, the formation of unevenness on the surface due to the peeling between the non-skin side sheet and the skin side sheet can be reduced. Therefore, the risk of insects such as mosquitoes landing on the crotch on the other side of the waist portion is reduced, and the repellent provided in the crotch area on one side reduces the risk of excessive use of the insect repellent. In addition, while allowing the insect repellent effect to be exerted on both the front and back sides of the wearer, the risk of being bitten by insects can be reduced.

[0047] (Aspect 8)

[0048] The disposable diaper according to any one of aspects 1 to 7, wherein the other waist portion is a rear waist portion.

[0049] According to the disposable diaper of aspect 8, since humans are less likely to pay attention to the back side of the human body than the ventral side, the repelling effect on the back side of the wearer can be improved, and the repelling effect on the back side of the wearer can be improved when sleeping face down.

[0050] (Aspect 9)

[0051] A disposable diaper according to any one of aspects 5 to 8, wherein the crotch portion has a central area and side areas, when the crotch portion is divided into three equal parts in the width direction, the central area is the central area in the width direction, the side areas are areas located on both sides of the central area, and in at least one area of ​​the one side crotch area and the other side crotch area, the maximum peel strength between the non-skin side sheet and the skin side sheet in the entire side area is higher than the maximum peel strength between the non-skin side sheet and the skin side sheet in the entire central area.

[0052] The disposable diaper according to aspect 9 reduces the risk of insects such as mosquitoes landing in the side areas by reducing the peeling between the non-skin side panels and the skin side panels in the side areas, making it easier to increase the repellent effect in the area near the leg openings of the disposable diaper.

[0053] (Aspect 10)

[0054] A disposable diaper according to any one of aspects 5 to 8, wherein the crotch portion has a central area and side areas, when the crotch portion is divided into three equal parts in the width direction, the central area is the central area in the width direction, the side areas are areas located on both sides of the central area, and in at least one area of ​​the one side crotch area and the other side crotch area, the maximum peel strength between the non-skin side sheet and the skin side sheet in the entire central area is higher than the maximum peel strength between the non-skin side sheet and the skin side sheet in the entire side area.

[0055] According to the disposable diaper of aspect 10, it reduces the risk of the non-skin side sheet and the skin side sheet being completely separated in the crotch, exposing the unevenness of the non-skin side sheet and the skin side sheet over the entire area of ​​the crotch. This reduces the risk of insects such as mosquitoes landing on the crotch, and makes it easier to increase the repellent effect of the crotch.

[0056] (Aspect 11)

[0057] A disposable diaper according to any one of aspects 1 to 10, wherein the disposable diaper has a crotch portion, the crotch portion has a central area and side areas, when the crotch portion is divided into three equal parts in the width direction, the central area is the central area in the width direction, and the side areas are areas located on both sides of the central area, the crotch portion has a one side crotch area and another side crotch area, the one side crotch area is the area from one side end of the crotch portion to the central position of the disposable diaper in the longitudinal direction, the other side crotch area is the area from the other side end of the crotch portion to the central position of the disposable diaper in the longitudinal direction, and in at least one area of ​​the one side crotch area and the other side crotch area, the maximum basis weight of the repellent in the side area is higher than the maximum basis weight of the repellent in the central area.

[0058] According to the disposable diaper of aspect 11, it is easier to increase the repellent effect in the area near the leg openings of the diaper in the worn state than when the basis weight of the repellent in the central area is made higher than that in the side areas.

[0059] (Aspect 12)

[0060] A disposable diaper according to any one of aspects 1 to 10, wherein the disposable diaper has a crotch portion, the crotch portion has a central area and side areas, when the crotch portion is divided into three equal parts in the width direction, the central area is the central area in the width direction, the side areas are both areas located on both sides of the central area, and the maximum basis weight of the repellent in the central area is higher than the maximum basis weight of the repellent in the side areas.

[0061] According to the disposable diaper of aspect 12, providing the repellent in the central region can show its effect to the leg openings on both sides in the width direction, so that the risk of overuse of the repellent can be reduced.

[0062] (Aspect 13)

[0063] A disposable diaper according to any one of aspects 5 to 7, wherein the other side crotch area has a first area and a second area, when the other side crotch area is divided into three equal parts in the longitudinal direction and the width direction, the first area is the central area in the longitudinal direction and the central area in the width direction, the second area is the area of ​​the other side crotch area excluding the first area, and the maximum value of the peeling strength between the non-skin side sheet and the skin side sheet in the entire first area is greater than or equal to the maximum value of the peeling strength between the non-skin side sheet and the skin side sheet in the entire second area.

[0064] The disposable diaper according to aspect 13 reduces the risk of the non-skin side sheet and the skin side sheet being completely separated in the other side crotch area, exposing the unevenness of the non-skin side sheet and the skin side sheet over the entire area of ​​the other side crotch area. This reduces the risk of insects such as mosquitoes landing on the crotch of one side of the disposable diaper, making it easier to increase the repellent effect of the crotch.

[0065] (Aspect 14)

[0066] A disposable diaper according to any one of aspects 1 to 13, wherein the disposable diaper has a crotch portion, the crotch portion has a crotch area on one side and a crotch area on the other side, the crotch area on one side is an area from one side end of the crotch portion to the center position of the disposable diaper in the longitudinal direction, the crotch area on the other side is an area from the other side end of the crotch portion to the center position of the disposable diaper in the longitudinal direction, the crotch area on the other side has a first area and a second area, when the crotch area on the other side is divided into three equal parts in the longitudinal direction and the width direction, the first area is the central area in the longitudinal direction and the central area in the width direction, the second area is an area of ​​the crotch area on the other side that does not include the first area, and the maximum basis weight of the repellent in the first area is equal to or greater than the maximum basis weight of the repellent in the second area.

[0067] According to the disposable diaper of aspect 14, providing the repellent in the first region can show its effect to the leg openings on both sides in the width direction, so that the risk of overuse of the repellent can be reduced.

[0068] (Aspect 15)

[0069] A disposable diaper according to any one of aspects 1 to 14, wherein the disposable diaper has a crotch portion, the crotch portion has an absorbent core, and a liquid-impermeable sheet which is arranged on a non-skin side relative to the absorbent core, and the repellent is arranged at least on the non-skin side relative to the liquid-impermeable sheet.

[0070] According to the disposable diaper of aspect 15, the risk of the repellent provided on the non-skin side relative to the liquid-impermeable sheet soaking into the absorbent core can be reduced.

[0071] (Aspect 16)

[0072] A disposable diaper according to any one of aspects 1 to 15, wherein the disposable diaper has a crotch portion, the crotch portion has the repellent, the crotch portion has a marking portion, the marking portion indicates an area where the repellent is set, and when viewed in the thickness direction, the disposable diaper has a portion where the portion where the repellent is set overlaps with the marking portion.

[0073] According to the disposable diaper of claim 16, it is possible for the wearer or the like to more easily recognize the portion where the repellent effect of the repellent is exerted.

[0074] ===Implementation Method===

[0075] The disposable diaper according to this embodiment is described by taking a disposable diaper for infants as an example. However, the disposable diaper according to this embodiment is not limited to the above, and may also be a disposable diaper for adults, or a disposable diaper with a belt for infants or adults.

[0076] ===Basic Structure of Pants-Type Disposable Diaper 1 ===

[0077] Figure 1 1 is a schematic perspective view of a pants-type disposable diaper 1 (hereinafter also referred to as "diaper 1"). Figure 2 This is a diagram of the diaper 1 in the stored state as seen from the rear side. Figure 3 1 is a schematic plan view of the diaper 1 in the unfolded and stretched state, viewed from the skin side. Figure 4 yes Figure 3 Schematic cross-sectional view at the center line CC in. Figure 3 The center line CC shown in FIG. 1 and FIG. 2 represent the center (central position) in the width direction of the diaper 1 , and the center line CL represent the center (central position) in the longitudinal direction of the diaper 1 .

[0078] The unfolded state of the diaper 1 refers to a state in which a pair of bonding portions 2 provided on both sides of the underpants-type diaper 1 are separated and the diaper 1 is opened and flat. The stretched state of the diaper 1 refers to a state in which the elastic members of the diaper 1 are stretched to such an extent that wrinkles in the diaper 1 are no longer visible. Specifically, the stretched state refers to a state in which the members constituting the diaper 1 have been stretched until the size of the members matches or is close to the size of the members themselves (i.e., the size in a state in which the elasticity of the elastic members is not exhibited).

[0079] The underpants-type diaper 1 includes an up-down direction, a width direction, and a front-back direction, and the diaper 1 is formed with a waist opening BH and a pair of leg openings LH (see Figure 2 ). In the front-back direction, the side that is the wearer's ventral side is the front side, and the side that is the wearer's back side is the rear side. Figure 4 As shown, the diaper 1 has a thickness direction, and the side in the thickness direction that comes into contact with the wearer is a skin side, and the opposite side is a non-skin side.

[0080] The diaper 1 has an absorbent body 10 and waist parts 20, 30, which are placed on the non-skin side of the absorbent body 10. The diaper 1 of this embodiment is a so-called three-piece diaper, and the waist part includes a front waist part 20 and a rear waist part 30, and in the portion of the absorbent body 10 located below the front waist part 20 and the rear waist part 30, the non-skin side is exposed to the outside.

[0081] like Figure 3 and Figure 4 As shown, the non-skin side of the longitudinal front end of the absorbent body 10 is bonded to the skin side of the front waist portion 20 by adhesive or the like, and the non-skin side of the longitudinal rear end of the absorbent body 10 is bonded to the skin side of the rear waist portion 30 by adhesive or the like. Figure 3 Starting from the diaper 1 in the unfolded state, the absorbent body 10 is folded in half at the folded portion so that the front waist portion 20 and the rear waist portion 30 face each other. Then, the two sides in the width direction of the front waist portion 20 and the two sides in the width direction of the rear waist portion 30 are combined by welding (for example, heat welding or ultrasonic welding) to form a pair of joints 2, so that the diaper 1 is in a panty-type state. The folded portion F is set in the longitudinal center of the diaper 1 in the unfolded state.

[0082] In the present embodiment, in the diaper 1, the area in the range where the joint 2 is located in the up-down direction is referred to as the "front waist portion 1F" and the "rear waist portion 1B", and the area below the front waist portion 1F and the rear waist portion 1B is referred to as the "crotch portion 1C". In addition, the "crotch portion" is an area located below the crotch of the wearer in the wearing state. Specifically, in the case of a panty-type disposable diaper such as the diaper 1, when the diaper is in a panty-type state, the area below the joint 2 at both ends in the width direction is the crotch portion 1C. In addition, in the case of a belt-type disposable diaper, when the disposable diaper is divided into two equal parts in the longitudinal direction in a state folded in half at the folding portion located in the longitudinal center, the lowermost area is the crotch portion.

[0083] The absorbent body 10 includes a liquid permeable top sheet 11, an absorbent core 12 for absorbing excrement, a liquid impermeable back sheet 13 and an outer sheet 14, each of which is bonded by an adhesive or the like. Examples of the absorbent core 12 include those absorbent cores formed by molding a mixture of liquid absorbent fibers (such as pulp fibers) and superabsorbent polymers into a specific shape. The absorbent core 12 may be covered with a core wrapping sheet made of nonwoven fabrics, liquid permeable tissue paper, etc. Other examples of the absorbent core 12 include an SAP sheet in which a SAP layer is attached to a hydrophilic sheet and an air-laid sheet in which liquid absorbent fibers are formed into a sheet by an air-laid method.

[0084] In addition, the absorbent body 10 has leg elastic members 15 (eg, elastic cords) on both sides in the width direction that stretch in the longitudinal direction (up and down direction). This allows the diaper 1 to fit around the legs of the wearer.

[0085] In addition, the absorbent body 10 has leakage-proof wall portions 16 that can stand up toward the skin side at both sides in the width direction. For example, the leakage-proof wall portions 16 are formed as follows: both sides in the width direction of the outer sheet 14 are folded inward in the width direction so as to be located on the skin side of the top sheet 11, and leakage-proof wall elastic members 161 (for example, elastic cords) that stretch in the longitudinal direction are provided in the folded portions.

[0086] like Figure 4 As shown, the front waist portion 20 (rear waist portion 30) has a skin side sheet 21 (31) and a non-skin side sheet 22 (32) made of a flexible non-woven fabric sheet, etc., and a plurality of waist elastic members 23 (33) (e.g., elastic cords) that are stretched in the width direction. In the waist portion 20 (30), a plurality of waist elastic members 23 (33) are arranged side by side at intervals in the up and down directions, and are fixed to the sheet in a state of being stretched in the width direction. Therefore, the front waist portion 20 and the rear waist portion 30 can be stretched in the width direction to fit around the waist of the wearer.

[0087] The front waist portion 20 may have a printed sheet 24 (e.g., a resin film made of polyethylene, polypropylene, etc.) between the skin side sheet 21 and the non-skin side sheet 22. Although not shown, the back waist portion 30 may also have a printed sheet between the skin side sheet 31 and the non-skin side sheet 32.

[0088] In addition, if Figure 3 As shown, the front waist portion 20 is rectangular in shape. Meanwhile, the rear waist portion 30 has an extension portion 34 extending downward from the rectangular joint portion 2. The extension portion 34 has a substantially trapezoidal shape whose length in the width direction decreases downward.

[0089] Although the basic structure of the diaper 1 has been described above, the structure of the diaper 1 is not limited to the above. For example, the diaper 1 may be a two-piece diaper. The front waist portion 20 and the rear waist portion 30 may be formed as a single continuous member, or a waist portion of the crotch connecting the front waist portion 20 and the rear waist portion 30 may be provided. In addition, the waist elastic members 23, 33 and the leg elastic members 15 may be elastic members (stretchable films or stretchable nonwoven fabrics) in the form of sheets instead of elastic cords.

[0090] <<Insect Repellent AM>>

[0091] Diaper 1 has an insect repellent AM. Insect repellent AM (hereinafter referred to as "repellent AM") refers to a repellent (insect repellent) for pests such as mosquitoes, gnats, non-biting midges, flies, etc., and includes a synthetic compound or a natural plant extract containing an ingredient with an insect repellent effect. For example, lemongrass, citronellal, 1,8-cineole, linalool acetate, N,N-diethyl-3-methylbenzamide (DEET), sesquiterpenes, ethyl butylacetylaminopropionate, picaridin, pyrethroids, cinnamon, rosemary, lavender, mint, eucalyptus, citronella, lemon eucalyptus, holy basil, etc. can be used. Repellent AM can be selected according to the target pests and the target wearer. In this embodiment, a separated fragrance extracted from citronella is used. Accordingly, the ingredient (citronella) with an insect repellent effect is given to diaper 1. Alternatively, for example, a repellent AM using a separated fragrance extracted from a repellent component such as lemongrass may be used.

[0092] In addition, it is preferred that the repellent AM is free of allergens. For example, it is preferred that the repellent AM contains substantially no 26 substances that must be indicated as allergens on the label according to the EU Cosmetics Directive (76 / 768 / EEC) (the ratio of such substances in the repellent AM is 1% or less). It is also preferred that the repellent AM does not hinder the adhesive properties of the hot melt adhesive used in the diaper 1.

[0093] Figure 2 The repellent AM in the embodiment is also a repellent configuration area AM which is a repellent AM coating area. The insect repellent AM of the present embodiment is a volatile substance and is applied in liquid form. The repellent configuration area AM may be coated only with a synthetic compound or a natural plant extract containing a component having an insect repellent effect. In addition, the repellent configuration area AM may be coated with a liquid such as a solvent that has been appropriately added to a component (substance) having an insect repellent effect, as appropriate.

[0094] Note that, in the present embodiment, the repellent AM in liquid form is applied to the diaper 1, but the present invention is not limited thereto. The insect repellent AM may be in a solid form, or may be in the form of microcapsules or the like containing the repellent therein.

[0095] like Figure 2 As shown in FIG. 1 and FIG. 2 , in the present embodiment, an insect repellent AM is provided on the rear side of the diaper 1, specifically, on the lower side (the folded portion F side) of the rear waist portion 30 and on the upper side of the folded portion F (center line CL), and in the substantially central portion in the width direction, the repellent is provided on the rear side of the diaper 1. This makes it easier to exhibit a repellent effect on the legs of the wearer, thereby reducing the risk of the wearer's legs being bitten by mosquitoes.

[0096] Preferably, in the diaper 1 in the unfolded and stretched state, the repellent AM is arranged at a position overlapping with the absorbent core 12 when viewed in the thickness direction. Specifically, the area of ​​the diaper 1 where the repellent AM is arranged is a rectangular area with a length of 30 mm in the longitudinal direction (up and down direction) and a length of 60 mm in the width direction. The size and shape of the area where the repellent AM is arranged can be changed as needed. For example, the area can be a rectangular area with a length of 40 mm in the longitudinal direction and a length of 80 mm in the width direction, or can be any other shape such as a circle, an ellipse or a polygon. Therefore, even if the repellent AM evaporates, the material constituting the absorbent core still absorbs the repellent AM, allowing the diaper 1 to keep the repellent AM for a long period of time. In particular, in the case where the absorbent core 12 includes liquid absorbent fibers (e.g., pulp fibers) and superabsorbent polymers (SAP), the material with a porous surface is likely to absorb the evaporated repellent AM.

[0097] <<Repellent effect of diaper 1>>

[0098] Conventionally, absorbent articles such as disposable diapers are known to have insect repellents. As more insect repellents are provided in the disposable diaper, the repellent effect can be increased. However, the more insect repellents are provided, the higher the manufacturing cost will be. In addition, it is known that when wearing the diaper 1, the wearer tends to be more susceptible to insect bites in their lower body such as the legs (especially their thighs and calves) than in the upper body such as the face (on the ventral side). When wearing the diaper 1, the wearer can easily see and reach the upper body, but it is difficult for the wearer to see and reach the lower body. Therefore, with respect to the diaper 1, a repellent effect for preventing insects around the legs is required.

[0099] The diaper 1 of the present embodiment has an insect repellent AM. In addition, when the diaper 1 within 20 minutes after being taken out of the package is subjected to an attracted insect count test, the result shows that the average number of attracted insects in the crotch portion 1C is less than the average number of attracted insects in the front waist portion 1F and the rear waist portion 1B. The "attracted insect count test" is a test for measuring the number of insects attracted to the diaper 1. By making the diaper 1 have an attracted insect count test result in which the average number of attracted insects in the crotch portion 1C is less than the average number of attracted insects in the front waist portion 1F and the rear waist portion 1B, compared with the case where the diaper 1 has a test result in which the average number of attracted insects in the crotch portion 1C is equal to or greater than the average number of attracted insects in the front waist portion 1F and the rear waist portion 1B, the repellent effect can be effectively exerted around the legs of the wearer, while reducing the risk of excessive use of the insect repellent AM. It should be noted that the package is a container in which the diaper 1 is accommodated in a container member, and in general, the diaper 1 is circulated and stored in its packaged state in which it is accommodated in the container member. The diaper 1 within 20 minutes after being taken out of the package means the diaper 1 within 20 minutes from the moment when the unopened package is opened and the diaper is taken out of the package.

[0100] In the attractant insect count test, measurement was performed in the following manner. Figure 5 is a schematic diagram illustrating an attractant insect counting test. Figure 5 : is a schematic diagram of the test method omitting insects. First, a sample is prepared in which a diaper is worn on a model D wearing stockings over stockings. Samples are prepared: sample 1, in which a diaper 1 with repellent AM is worn on model D within 20 minutes after being taken out of the package; sample 2, in which a diaper without repellent AM is worn on model D. Sample 2 has the same structure as sample 1, except that sample 2 does not have repellent AM. A disposable hand warmer is placed on the front (or rear) side of each sample. By placing the disposable hand warmer inside, the temperature of the sample becomes closer to body temperature, making the sample more attractive to insects. Model D is a balloon shaped like a body shape similar to that of an infant (around the waist and around the legs). The waist circumference of model D is 47 cm and the leg circumference is 25 cm. The material of the balloon of model D is polyethylene. The stockings worn on model D are made of nylon and polyurethane. The sample worn on the model D is in a state where the waist portions 20 and 30 are stretched 180% and the leg openings LH are stretched 250%. Figure 5As shown, the samples are placed in a 50cm×50cm×50cm cubic box B in sequence, and the samples are hung on the top of the box B with a rope LO or the like. Examples of box B include, for example, a nylon box that is breathable and highly visible and covered with cloth. 50 insects are contained in box B. The insects are adult female Aedes aegypti. The temperature in box B is 25°C and the humidity is 50%-70%. Then, according to the time after the sample is placed in box B, the number of insects lured to each of the waist parts 1F and 1B and the crotch part 1C in the sample is measured. Specifically, the number of insects lured to the measurement area of ​​the sample is measured 5 minutes, 10 minutes, 20 minutes, 30 minutes, 60 minutes and 120 minutes after being placed in box B. During the time passed, the number of insects lured to the waist parts 1F and 1B and the crotch part 1C is used to calculate the average value.

[0101] In the test for attracting insect count, a model made of a plurality of tubes may be used instead of a balloon shaped like a body of an infant. For example, two cylindrical tubes may be used for the test for attracting insect count, or three cylindrical tubes may be used for the test for attracting insect count. The test for attracting insect count using two cylindrical tubes may be performed as follows: a sample is made into a polyurethane tube and inserted from the waist opening BH of the diaper 1 into each leg opening LH and the tube is vertically standing on the ground, the sample in this state is placed in a box B similar to the above, and then the number of insects attracted to the measurement area of ​​the sample per elapsed time is measured, and the average value is calculated based on the number of insects attracted to each of the waist parts 1F and 1B and the crotch part 1C during the elapsed time. The attracted insect counting test using three cylindrical tubes can be carried out as follows: a sample is made into a polyurethane tube and inserted into each leg opening LH from the waist opening BH of the diaper 1 with the tube standing perpendicular to the ground, and a tube having a diameter larger than the tube inserted into the leg opening LH is inserted into the waist opening BH. The sample in this state is placed in a box B similar to the above-mentioned, and then the number of insects attracted to the measuring area of ​​the sample per elapsed time is measured, and the average value is calculated based on the number of insects attracted to each of the waist parts 1F and 1B and the crotch part 1C during the elapsed time.

[0102] Figure 6 A shows the results of the attracted insect count test of diaper 1 within 20 minutes after being taken out of the package. Figure 6 A and Figure 6 The result of the average number of attracted insects in each measurement area at each time point shown in B (described later) is the average value of the results obtained by 6 (n) measurements. Figure 6 A and Figure 6In B, the "total number of the waist portion" indicates the sum of the result of the front waist portion 1F and the result of the rear waist portion 1B, and the "total number of the crotch portion" indicates the sum of the result of the front crotch portion (front crotch area 1Ca) and the result of the rear crotch portion (rear crotch area 1Cb). Then, the average number of attracted insects is obtained by calculating the average of the average number of attracted insects per period of time. For example, for the waist portion (front waist portion and rear waist portion) of diaper 1, the sum of the average number of attracted insects per period of time (the total number of the average number of attracted insects in the waist portion at each time point = 7.5) / 6 = 1.25, and the result of the average number of attracted insects is 1.3 insects.

[0103] like Figure 6 As shown in A, the total average number of attracted insects in the waist parts 1F and 1B of the diaper 1 (sample 1) with the repellent AM is 1.3, and the total average number of attracted insects in the crotch part 1C is 0.3. Therefore, it is obvious that the average number of attracted insects in the crotch part 1C is smaller than the average number of attracted insects in the front waist part 1F and the rear waist part 1B. On the other hand, for the sample 2 of the diaper 1 without the repellent AM, the total average number of attracted insects in the waist parts 1F and 1B is 2.2, and the total average number of attracted insects in the crotch part 1C is 0.8. In this way, in the diaper 1 with the repellent AM, by making the average number of attracted insects in the crotch part 1C smaller than the average number of attracted insects in the front waist part 1F and the rear waist part 1B, the repellent effect can be exhibited around the legs of the wearer in the wearing state, while reducing the risk of the diaper 1 having an excessive amount of repellent AM.

[0104] In addition, regarding the diaper 1 containing the repellent AM, examples of means for making the average number of attracted insects in the crotch portion 1C smaller than the average number of attracted insects in the front waist portion 1F and the back waist portion 1B include: the composition, amount or configuration of the repellent AM in the diaper 1; or applying the repellent AM in the form of a liquid; or applying the repellent AM in the form of microcapsules containing the repellent AM; or other methods, such as increasing the peel strength between the components of the diaper 1 to create unevenness on the surface of the components, making it difficult for insects to land on the components. For example, in the case where the repellent AM is set on the entire diaper 1, the concentration of the repellent AM in the crotch portion 1C can be made higher than the concentration of the repellent AM in the front waist portion 1F and the back waist portion 1B. In the case where the repellent AM is set on the entire diaper 1, the basis weight of the repellent AM in the crotch portion 1C can be made higher than the basis weight of the repellent AM in the front waist portion 1F and the back waist portion 1B. In addition, even when the area with repellent AM in front waist 1F and back waist 1B is greater than the area with repellent AM in crotch 1C, the concentration of repellent AM in crotch 1C can be made higher than the concentration of repellent AM in front waist 1F and back waist 1B. Even when the area with repellent AM in front waist 1F and back waist 1B is greater than the area with repellent AM in crotch 1C, the basis weight of repellent AM in crotch 1C can be made higher than the basis weight of repellent AM in front waist 1F and back waist 1B. In addition, when the concentration or basis weight of repellent AM are uniformly set on whole diaper 1, the outer sheet 14 and back sheet 13 of crotch 1C can have higher peel strength. The relationship between peel strength and repellent effect will be described later.

[0105] Furthermore, when the above-mentioned attracted insect count test is performed on the diaper 1 after 4 hours from the package, it is preferred that the average number of attracted insects in the crotch portion 1C after 4 hours is smaller than the average number of attracted insects in the front waist portion 1F and the back waist portion 1B after 4 hours. The diaper 1 after 4 hours from the package means the diaper 1 after 4 hours from the moment when the unopened package is opened, the diaper 1 is taken out of the package and exposed to the outside.

[0106] Regarding the average number of attracted insects after 4 hours, the diaper 1 taken out of the package and left on a flat surface after 4 hours was subjected to an attracted insect count test similar to the above. Sample 3 is a sample in which the diaper 1 with the repellent AM after 4 hours from the package was worn on the model D, and the sample 4 has the same construction as the sample 3 except that the sample 4 does not have the repellent AM. As described above, each model D was previously wearing socks, and a disposable hand warmer was placed on the front (or rear) side of each sample.

[0107] Figure 6B shows the results of the attracted insect count test of the diaper 1 4 hours after it was taken out of the package. Figure 6 The "average number of attracted insects" in B refers to the "average number of attracted insects after 4 hours have passed." Figure 6 As shown in Figure B, the total average number of attracted insects in the waist parts 1F and 1B of the diaper 1 (sample 3) after 4 hours (the average number of attracted insects after 4 hours) is 0.5, and the total average number of attracted insects in the crotch part 1C after 4 hours (the average number of attracted insects after 4 hours) is 0.2. Therefore, it is obvious that the average number of attracted insects in the crotch part 1C after 4 hours is less than the average number of attracted insects in the front waist part 1F and the rear waist part 1B after 4 hours. On the other hand, for sample 4 of the diaper 1 without the repellent AM, the total average number of attracted insects in the waist parts 1F and 1B (the average number of attracted insects after 4 hours) is 2.2, and the total average number of attracted insects in the crotch part 1C (the average number of attracted insects after 4 hours) is 3.3. In this way, in the diaper 1 with repellent AM after 4 hours, by making the average number of attracted insects in the crotch portion 1C after 4 hours smaller than the average number of attracted insects in the front waist portion 1F and the back waist portion 1B after 4 hours, the repellent effect around the wearer's legs can be maintained for a long period of time while reducing the risk of the diaper 1 having excessive repellent AM.

[0108] In addition, with respect to the diaper 1 containing the repellent AM after 4 hours, examples of means for making the average number of attracted insects in the crotch portion 1C after 4 hours smaller than the average number of attracted insects in the front waist portion 1F and the rear waist portion 1B after 4 hours include: the composition, amount or configuration of the repellent AM in the diaper 1; or applying the repellent AM in liquid form; or applying the repellent AM in the form of microcapsules containing the repellent AM, etc.

[0109] In addition, if Figure 7 As shown, the diaper 1 in the unfolded and stretched state has the following areas: a reference area aa, which is a square with a length of 1 cm in both the longitudinal and width directions; a comparison area ba, which is a square with a length of 1 cm in both the longitudinal and width directions; and a rear end area Hb. Figure 7 is a schematic diagram illustrating the reference area aa and the comparison area ab. Figure 7 is a schematic diagram viewed from the non-skin side, and for convenience, Figure 7 Members such as the elastic members 23 and 33 are omitted. Furthermore, in the longitudinal direction, the front side is also referred to as one side, and the rear side is also referred to as the other side.

[0110] The reference area aa overlaps the absorbent core 12 when viewed in the thickness direction, and is located between the central position CL of the diaper 1 and the rear end 12bc of the absorbent core in the longitudinal direction.

[0111] The rear end region Hb is a region from one side to the other side in the width direction of the rear waist portion 30, and the length on one side from the longitudinal rear end 30e of the diaper 1 is 1 cm. In addition, the region from one side to the other side in the width direction of the rear waist portion 30 is a region between the width direction inner ends of the bonding portion 2. In addition, the length of 1 cm on one side from the longitudinal rear end 30e of the diaper 1 is the longitudinal length of the rear end region Hb.

[0112] For the diaper 1, regardless of the position of the comparison area ba in the rear end area Hb, the basis weight of the repellent AM in the reference area aa is higher than the basis weight of the repellent AM in the comparison area ba. Figure 7 As shown, for example, even if the comparison area ba is placed at the position of area ba1 in the rear end area Hb, the basis weight of the repellent AM in the reference area aa is higher than the basis weight of area ba1. Even if the comparison area ba is placed at the position of area ba2, the basis weight of the repellent AM in the reference area aa is higher than the basis weight of area ba2. Even if the comparison area ba is placed at the position of area ba3, the basis weight of the repellent AM in the reference area aa is higher than the basis weight of area ba3. In addition, the length of areas ba1, ba2 and ba3 in the longitudinal direction (the longitudinal length Hb of the rear end area) is 1 cm, and the length of areas ba1, ba2 and ba3 in the width direction is 1 cm. In this way, regardless of the position of the comparison area ba in the rear end area Hb, the basis weight of the repellent AM in the reference area aa is higher than the basis weight of the repellent AM in the comparison area ba.

[0113] In the diaper 1 of the present invention, regardless of the position of the comparison area ba in the rear end area Hb, by making the basis weight of the repellent AM in the reference area aa higher than the basis weight of the repellent AM in the comparison area ba, the amount of repellent AM used in the diaper 1 can be reduced compared to the case where the basis weight of the repellent AM in the rear end area Hb is equal to or greater than the basis weight of the reference area aa. In other words, compared to the case where the insect repellent AM is uniformly arranged over the entire diaper 1, the risk of excessive use of the insect repellent can be reduced. In addition, since the basis weight of the repellent AM in the reference area aa of the wearer is higher than the basis weight of the repellent AM in the comparison area ba, it is easier to show a repellent effect around the legs (lower body) of the wearer, making it easier to prevent insect bites. In particular, when the wearer is an infant, it is assumed that the upper body will be covered with a shirt, etc., and the lower body will be covered only with the diaper 1. Even in this case, the insect repellent effect can be effectively shown to the leg area of ​​the wearer while reducing the risk of excessive use of the insect repellent AM.

[0114] In addition, as in the diaper 1, it is preferred that the insect repellent AM is provided on the rear side of the diaper 1, and the basis weight of the repellent AM in the reference area aa is higher than the basis weight of the repellent AM in the comparison area ba regardless of the position of the comparison area ba in the rear end area Hb. Generally speaking, people tend to pay less attention to the back side of their body than to the ventral side. For example, the repellent effect on the back side of the wearer can be improved, thereby improving the repellent effect on the rear side of the diaper 1 when sleeping face down.

[0115] The center ac of the reference area aa is located at the center cb12 between the central position CL of the diaper 1 and the rear end 12bc of the absorbent core 12 in the longitudinal direction, and is located at the central position CC of the diaper 1 in the width direction. Regardless of the position of the comparison area ba in the rear end area Hb, the basis weight of the repellent AM in the reference area aa can be higher than the basis weight of the repellent AM in the comparison area ba. Even in this case, regardless of the position of the comparison area ba in the rear end area Hb, the basis weight of the repellent AM in the reference area aa is higher than the basis weight of the repellent AM in the comparison area ba, so that the amount of repellent AM used in the diaper 1 can be reduced compared to the case where the basis weight of the repellent AM in the rear end area Hb is equal to or greater than the basis weight in the reference area aa, while allowing the insect repellent effect to be effectively exhibited around the legs of the wearer.

[0116] Basis weight (g / m 2 ) and the basis weight (g / m 2) can be compared using a gas chromatography apparatus (7890B manufactured by Agilent Technologies Inc. or an equivalent apparatus).

[0117] (1) First, cut out the reference area aa and comparison area ba (e.g., ba1, ba2, ba3) to be measured from the rear waist portion 30 and the absorbent body 10 of the diaper 1. The cut pieces of the reference area aa and the comparison area ba each become a sample, and the sample is a square of longitudinal direction × width direction = 10 mm × 10 mm. (2) Next, for example, immerse the sample in water and extract a mixture of repellent AM (ingredient having an insect repellent effect) and other ingredients (solvent, etc.) from the sample. (3) Use a gas chromatography device to analyze the components of the mixture extracted from each sample. Then, for each sample, obtain the peak of the repellent AM (ingredient having an insect repellent effect) and the peak of the other ingredients (solvent, etc.), and calculate the ratio of the peak of the repellent to the peak of the other ingredients (peak of repellent / peak of other ingredients). This ratio is considered to correspond to the amount of repellent AM located in the sample. (4) Finally, calculate the ratio of the repellent in each sample. This ratio is considered to correspond to the basis weights of the repellent AM in the reference area aa and the comparison area ba. Then, the basis weights of the repellents obtained by the calculation are compared.

[0118] In addition, for each cut-out sample, the basis weight of the repellent AM in the reference area aa and the comparison area ba can be calculated and compared as follows: separate the components of the sample (e.g., the skin side panel 31 and the non-skin side panel 32 of the rear waistline portion 30), measure the amount of repellent AM in each component in the separated state and add up the amounts.

[0119] Furthermore, as described above, regarding the diaper 1 with the repellent AM, the crotch portion 1C has an outer sheet (non-skin side sheet) 14 located closest to the non-skin side and a back sheet (skin side sheet) 13 adjacent to the outer sheet 14 on the skin side (see Figure 4 ). The exterior sheet 14 and the back sheet 13 are bonded together using an adhesive such as a hot melt adhesive.

[0120] In addition, if Figure 8 As shown, the crotch portion 1C of the diaper 1 has a front crotch region (one side crotch region) 1Ca and a rear crotch region (the other side crotch region) 1Cb. Figure 8 1 is a schematic diagram illustrating regions of the diaper 1 . Figure 8 is a schematic diagram viewed from the non-skin side, and for convenience, Figure 8Components such as the elastic members 23 and 33 are omitted. In addition, in the longitudinal direction, the front side is also referred to as one side, and the rear side is also referred to as the other side. The front crotch region 1Ca is a region from the longitudinal direction front end of the crotch portion 1C to the central position CL of the diaper 1. The rear crotch region 1Cb is a region from the longitudinal direction rear end of the crotch portion 1C to the central position CL of the diaper 1.

[0121] In addition, the maximum peel strength between the outer sheet 14 and the back sheet 13 in the entire front crotch area 1Ca is higher than the maximum peel strength between the outer sheet 14 and the back sheet 13 in the entire back crotch area 1Cb. In short, the back crotch area 1Cb has a portion where the outer sheet 14 and the back sheet 13 are more strongly bonded than the front crotch area 1Ca.

[0122] Compared with smooth surface, insects such as mosquitoes are usually likely to land on the concavoconvex surface. When the combination between outer sheet 14 and back sheet 13 is peeled off, the peeling creates space between outer sheet 14 and back sheet 13. If diaper 1 is made into wearing state when this space is retained, outer sheet 14 and back sheet 13 will rub each other in the space between outer sheet 14 and back sheet 13, making the fiber of outer sheet 14 (skin side) or back sheet 13 (non-skin side) likely to become worn. This causes forming concavoconvex on the bonding surface and the concavoconvex surface becomes exposed risk. In comparison, the peel strength maximum value between outer sheet 14 and back sheet 13 is higher, and the bonding between outer sheet 14 and back sheet 13 just becomes stronger. This makes it unlikely to form space between outer sheet 14 and back sheet 13 due to peeling off. In the wearing state, this can reduce the risk of the outer sheet 14 and the back sheet 13 rubbing against each other in the space between the outer sheet 14 and the back sheet 13, causing unevenness to be formed on the surfaces of the outer sheet 14 and the back sheet 13. By reducing the risk of the outer sheet 14 and the back sheet 13 peeling off, unevenness is less likely to be formed on the skin side of the outer sheet 14 or the non-skin side of the back sheet 13. This can reduce the risk of insects such as mosquitoes landing on the crotch portion 1C on the rear side, thereby making it possible to exhibit an insect repellent effect in the rear crotch region 1Cb and reduce the amount of insect repellent used in the diaper 1.

[0123] For example, on the back side (rear crotch area 1Cb), due to the peeling strength between the outer sheet 14 and the back sheet 13, a repellent effect is shown. And repellent AM is set on the front side (front waist 20, front crotch area 1Ca), so that the repellent effect of diaper 1 can be shown on the ventral and dorsal sides of the wearer, while reducing the risk of overusing repellent AM. Compared with the ventral side, since humans are unlikely to pay attention to the dorsal side of the human body, the repellent effect of the dorsal side of the wearer can be effectively prevented from insect bites. In addition, if the wearer is an infant who often sleeps in a prone position, the dorsal side of the wearer needs insect repellent. On the back side (rear crotch area 1Cb), due to the peeling strength between the outer sheet 14 and the back sheet 13, a repellent effect is played, and by setting repellent AM on the back side (rear waist 30, rear crotch area 1Cb) of diaper 1, it is easier to effectively repel from the dorsal side of the wearer.

[0124] Furthermore, in the present embodiment, the maximum value of the peeling strength between the outer sheet 14 and the back sheet 13 in the entire back crotch region 1Cb is higher than the maximum value of the peeling strength between the outer sheet 14 and the back sheet 13 in the entire front crotch region 1Ca. However, the maximum value of the peeling strength between the outer sheet 14 and the back sheet 13 in the entire front crotch region 1Ca may be higher than the maximum value of the peeling strength between the outer sheet 14 and the back sheet 13 in the entire back crotch region 1Cb.

[0125] In this case, the risk of peeling between the outer sheet 14 and the back sheet 13 in the front crotch area 1Ca can be reduced. This can reduce the formation of unevenness on the skin side of the outer sheet 14 or the non-skin side of the back sheet 13, so that the risk of insects such as mosquitoes landing on the crotch portion 1C located on the front side can be reduced. The amount of insect repellent used in the diaper 1 to exhibit an insect repellent effect in the front crotch area 1Ca can be reduced.

[0126] For example, on the front side (front crotch area 1Ca), due to the peeling strength between the outer sheet 14 and the back sheet 13, a repellent effect is shown. And repellent AM is set on the back side (rear waist 30, back crotch area 1Cb) so that the repellent effect of the diaper 1 can be shown on the ventral and dorsal sides of the wearer, while reducing the risk of overusing repellent AM. In addition, in the case of infants and young children who often sleep on their backs, the wearer's ventral side needs insect repellent. On the front side (front crotch area 1Ca), due to the peeling strength between the outer sheet 14 and the back sheet 13, a repellent effect is played, and by setting repellent AM on the front side (front waist 20, front crotch area 1Ca) of the diaper 1, it becomes easier to effectively repel from the wearer's ventral side.

[0127] "Peel strength" refers to the size of the force required for peeling off the combination, and is also the bonding strength. The method for measuring the peel strength of each joint can be a known method. For example, first, cut out the front crotch area 1Ca and the back crotch area 1Cb from the diaper 1. Next, remove the outer sheet 14 and the back sheet 13 that are combined together from the cut-out pieces of the front crotch area 1Ca and the back crotch area 1Cb, and prepare the sample. Then, for each sample taken out, the adhesive tape is applied to the two sides of the width direction end or the two sides of the longitudinal end (the surface of the outer sheet 14 and the surface of the back sheet 13), forming a pair of retaining portions. This pair of retaining portions is all clamped in the chuck of the tensile testing machine. Then, measure the force required for peeling off the outer sheet 14 and the back sheet 13 as follows: the load of the tensile testing machine is set to 0, then the retaining portion located at the outer sheet 14 side is pulled to one side (non-skin side) in the thickness direction, and the retaining portion located at the back sheet 13 side is pulled to the other side (skin side) in the thickness direction, thereby peeling off the outer sheet 14 and the back sheet 13 in the sample. The maximum load is read under the following conditions: the chuck distance is 10 mm and the tensile speed is 100 mm / min. The measurement is carried out multiple times (N=10), and the average value of the maximum load is calculated. The calculated maximum load is converted into a load per unit width (N / 25 mm) and used as the magnitude of the peel force (peel strength) for comparison. It is recommended that the measurement be carried out in a constant environment where the sample temperature is stable (for example, a temperature of 20°C (±2°C), a humidity of 60% (±5%)). In addition, the sample to be measured using the tensile tester can be the entire front crotch area 1Ca and the entire back crotch area 1Cb. Alternatively, the entire front crotch area 1Ca and the entire back crotch area 1Cb can be cut into sample pieces of 25 mm×25 mm, and the magnitude of the peel force of all the obtained sample pieces can be measured.

[0128] In the case where the maximum value of the peeling strength between the outer sheet 14 and the back sheet 13 in the entire front crotch area 1Ca is higher than the maximum value of the peeling strength between the outer sheet 14 and the back sheet 13 in the entire back crotch area 1Cb, it is preferred that the basis weight maximum value of the repellent AM in the back crotch area 1Cb is higher than the basis weight maximum value of the repellent AM in the front crotch area 1Ca. This can reduce the formation of the concave-convex on the surface of the rear side (rear crotch area 1Cb) of the diaper 1 caused by the peeling between the outer sheet 14 and the back sheet 13. Therefore, the risk of mosquitoes landing on the crotch 1C located at the rear side of the diaper 1 is reduced, and the effect combination of the repellent AM arranged in the back crotch area 1Cb of the diaper 1 can increase the repellent effect of the rear side (rear crotch area 1Cb) of the diaper 1, while reducing the risk of excessive use of insect repellents. In particular, in the case of sleeping face down, by increasing the repellent effect of the back of the wearer in the diaper 1, the repellent effect can be effectively shown while reducing the amount of repellent AM used.

[0129] In addition, in the case where the maximum value of the peeling strength between the outer sheet 14 and the back sheet 13 in the entire front crotch area 1Ca is higher than the maximum value of the peeling strength between the outer sheet 14 and the back sheet 13 in the entire back crotch area 1Cb, it is preferred that the maximum value of the basis weight of the repellent AM in the front crotch area 1Ca is higher than the maximum value of the basis weight of the repellent AM in the back crotch area 1Cb. This makes it unlikely that the surface of the front side (front crotch area 1Ca) of the diaper 1 will be formed with concavoconvex due to the peeling between the outer sheet 14 and the back sheet 13. Therefore, the risk of mosquitoes landing on the crotch 1C located at the front side of the diaper 1 is reduced, and the effect combination of the repellent AM provided in the front crotch area 1Ca of the diaper 1 increases the repellent effect of the front side (front crotch area 1Ca) of the diaper 1, while reducing the risk of excessive use of insect repellents. In particular, in the case of sleeping on your back, by increasing the repellent effect of the abdomen of the wearer in the diaper 1, the repellent effect can be effectively exhibited while reducing the amount of repellent AM used.

[0130] On the other hand, in the case where the peeling strength maximum between the outer sheet 14 and the back sheet 13 in the entire front crotch area 1Ca is higher than the peeling strength maximum between the outer sheet 14 and the back sheet 13 in the entire back crotch area 1Cb, it is acceptable that the basis weight maximum of the repellent AM in the front crotch area 1Ca is higher than the basis weight maximum of the repellent AM in the back crotch area 1Cb. This can reduce the formation of the concave-convex on the surface of the rear side (back crotch area 1Cb) of the diaper 1 due to the peeling between the outer sheet 14 and the back sheet 13. Therefore, the risk of mosquitoes landing on the crotch 1C located at the rear side of the diaper is reduced, and the repellent AM set in the front crotch area 1Ca reduces the risk of excessive use of insect repellent AM. At the same time, both the ventral and dorsal sides of the wearer show an insect repellent effect, and this makes it possible to reduce the risk of being bitten by insects.

[0131] In addition, in the case where the peeling strength maximum value between the outer sheet 14 and the back sheet 13 in the entire front crotch area 1Ca is higher than the peeling strength maximum value between the outer sheet 14 and the back sheet 13 in the entire back crotch area 1Cb, it is acceptable that the basis weight maximum value of the repellent AM in the back crotch area 1Cb is higher than the basis weight maximum value of the repellent AM in the front crotch area 1Ca. This can reduce the formation of the concave-convex on the surface of the front side (front crotch area 1Ca) of the diaper 1 due to the peeling between the outer sheet 14 and the back sheet 13. Therefore, the risk of mosquitoes landing on the crotch 1C located at the front side of the diaper 1 is reduced, and the repellent AM set in the back crotch area 1Cb reduces the risk of excessive use of insect repellent AM. At the same time, both the ventral and dorsal sides of the wearer show an insect repellent effect, and this makes it possible to reduce the risk of being bitten by insects.

[0132] The maximum value of the basis weight of the repellent AM in each region can be measured in a manner similar to the above-mentioned basis weight measurement. For example, similar to the above-mentioned method of measuring basis weight, the following method can be used: for the front crotch region 1Ca and the back crotch region 1Cb, a square sample of longitudinal direction × width direction = 10 mm × 10 mm is cut out for all regions, and the maximum value of the basis weight in each region is obtained from the basis weight results of all samples.

[0133] like Figure 8 As shown, the crotch portion 1C has a central region Cc and side regions Ce. The central region Cc is the central region in the width direction when the crotch portion 1C is divided into three equal parts in the width direction. The side regions Ce are regions located on both sides of the central region. The central region Cc in the front crotch region 1Ca is the front central region Cac, and the side regions Ce in the front crotch region 1Ca are the front side regions Cae. The central region Cc in the back crotch region 1Cb is the back central region Cbc, and the side regions Ce in the back crotch region 1Cb are the back side regions Cbe.

[0134] Preferably, the maximum value of the peeling strength between the outer sheet 14 and the back sheet 13 in the entire rear side region Cbe is higher than the maximum value of the peeling strength between the outer sheet 14 and the back sheet 13 in the entire rear central region Cbc. By reducing the risk of the outer sheet 14 and the back sheet 13 in the rear side region Cbe being peeled off, the risk of insects such as mosquitoes landing on the rear side region Cbe can be reduced, making it easier to increase the insect repellent effect in the area near the leg opening LH of the diaper 1.

[0135] It should be noted that, similar to the back crotch region 1Cb, the maximum value of the peel strength between the outer sheet 14 and the back sheet 13 in the entire front side region Cae can be higher than the maximum value of the peel strength between the outer sheet 14 and the back sheet 13 in the entire front center region Cac. This can reduce the risk of insects such as mosquitoes landing on the front side region Cae, making it easier to increase the insect repellent effect in the area near the leg opening LH of the diaper 1. In addition, both the front crotch region 1Ca and the back crotch region 1Cb can have such a peel strength.

[0136] On the other hand, the maximum peel strength between the outer sheet 14 and the back sheet 13 in the entire rear central area Cbc can be higher than the maximum peel strength between the outer sheet 14 and the back sheet 13 in the entire rear side area Cbe. This reduces the risk of the outer sheet 14 and the back sheet 13 being completely separated in the rear crotch area 1Cb, and the risk of the unevenness being exposed due to the separation between the outer sheet 14 and the back sheet 13 throughout the entire rear crotch area 1Cb. This can reduce the risk of mosquitoes and other insects landing on the rear crotch area 1Cb, making it easier to increase the insect repellent effect of the rear crotch area 1Cb.

[0137] Furthermore, similar to the back crotch region 1Cb, the maximum value of the peeling strength between the outer sheet 14 and the back sheet 13 in the entire front central region Cac may be higher than the maximum value of the peeling strength between the outer sheet 14 and the back sheet 13 in the entire front side region Cae. In addition, both the front crotch region 1Ca and the back crotch region 1Cb may have such a peeling strength.

[0138] It is also preferred that, in the rear crotch region 1Cb, the maximum value of the basis weight of the repellent AM in the rear side region Cbe is higher than the maximum value of the basis weight of the repellent AM in the rear central region Cbc. This makes it easier to increase the insect repellent effect in the area near the leg opening 1 on the rear side of the diaper 1 in the wearing state, compared with the case where the maximum value of the basis weight of the repellent AM in the rear central region Cbc is made higher than the maximum value of the basis weight of the repellent AM in the rear side region Cbe.

[0139] Furthermore, not only in the back crotch region 1Cb but also in the front crotch region 1Ca, the maximum basis weight of the repellent AM in the front side region Cae may be higher than the maximum basis weight of the repellent AM in the front center region Cac. In addition, both the front crotch region 1Ca and the back crotch region 1Cb may have this configuration.

[0140] On the other hand, in the rear crotch region 1Cb, the maximum basis weight of the repellent AM in the rear central region Cbc can be higher than the maximum basis weight of the repellent AM in the rear side region Cbe. Since the repellent AM in the rear central region Cbc provided in a larger amount than in the rear side region Cbe can exert an effect on the leg openings LH on both sides in the width direction, the risk of excessive use of the repellent AM in the diaper 1 can be reduced.

[0141] Furthermore, not only in the back crotch region 1Cb but also in the front crotch region 1Ca, the maximum basis weight of the repellent AM in the front central region Cac may be higher than the maximum basis weight of the repellent AM in the front side region Cae. In addition, both the front crotch region 1Ca and the back crotch region 1Cb may have this configuration.

[0142] Fig. 9 1 is a schematic diagram illustrating regions of the diaper 1 . Fig. 9 This is a schematic diagram viewed from the non-skin side, and for convenience, Fig. 9 Components such as elastic components 23 and 33 are omitted. Fig. 9As shown, the back crotch region 1Cb has a first region Cb1 and a second region Cb2. When the back crotch region 1Cb is divided into three equal parts in the longitudinal direction and the width direction, the first region Cb1 is the central region in the longitudinal direction and the central region in the width direction. The second region Cb2 is a region of the back crotch region 1Cb that does not include the first region Cb1. In other words, the first region Cb1 is the central region of the back crotch region 1Cb, and the second region Cb2 is a region of the back crotch region 1Cb that surrounds the first region Cb1.

[0143] Preferably, the maximum value of the peeling strength between the outer sheet 14 and the back sheet 13 in the entire first region Cb1 can be greater than or equal to the maximum value of the peeling strength between the outer sheet 14 and the back sheet 13 in the entire second region Cb2. Compared with the case where the maximum value of the peeling strength between the outer sheet 14 and the back sheet 13 in the entire first region Cb1 is less than the maximum value of the peeling strength between the outer sheet 14 and the back sheet 13 in the entire second region Cb2, this reduces the risk of the outer sheet 14 and the back sheet 13 being completely separated in the back crotch region 1Cb, and the risk of the unevenness being exposed due to the separation between the outer sheet 14 and the back sheet 13 throughout the entire back crotch region 1Cb. Therefore, it is easier to increase the insect repellent effect in the back crotch region 1Cb by making it less likely for insects such as mosquitoes to land on the back crotch region 1Cb. In addition, the front crotch region 1Ca can have the same structure as the back crotch region 1Cb, and both the front crotch region 1Ca and the back crotch region 1Cb can have such a structure.

[0144] It is also preferred that the maximum basis weight of the repellent AM in the first region Cb1 is equal to or greater than the maximum basis weight of the repellent AM in the second region Cb2. This allows the repellent AM provided in the first region Cb located in the central portion (in the middle) of the rear crotch region 1Cb to exhibit an effect on the leg openings LH on both sides in the width direction. This makes it possible to reduce the risk of overuse of the repellent in the diaper 1.

[0145] As described above, the crotch portion 1C has the back sheet 13, which is a liquid-impermeable sheet provided on the non-skin side relative to the absorbent core 12. And, preferably, a repellent AM is provided at least on the non-skin side relative to the back sheet 13. This can reduce the risk of the repellent AM provided on the non-skin side relative to the back sheet 13 (liquid-impermeable sheet) soaking into the absorbent core 12, so that the risk of the repellent AM mixing with excrement such as urine that has been absorbed when worn can be reduced.

[0146] It is still more preferable to provide the repellent AM on the back sheet 13 which is a liquid-impermeable sheet. This reduces the risk of the repellent AM soaking into the material and makes it easier to keep the repellent AM on the back sheet 13, making it easier to continue the repellent effect of the repellent AM.

[0147] If the diaper 1 includes an SMS (spunbond / meltblown / spunbond) nonwoven fabric sheet, the repellent AM can be applied to the surface of the SMS nonwoven fabric sheet. The repellent AM placed on the surface of the SMS nonwoven fabric sheet does not pass through the meltblown layer of the SMS nonwoven fabric, so it is easier to maintain its position on the surface of the SMS nonwoven fabric sheet, making it easier to maintain the repellent effect of the repellent AM.

[0148] In the case where the diaper 1 has an airtight film (sheet member), it is preferred that the diaper 1 in the unfolded and stretched state has a portion where the repellent AM overlaps with the airtight film in the thickness direction. Since the repellent AM overlaps with the airtight film in the thickness direction, it is easier to restrict the evaporation direction of the volatile components of the repellent AM, making it easier for the repellent AM to exhibit its effect.

[0149] On the other hand, in the case where the diaper 1 has a breathable film (sheet member), it is acceptable that the diaper 1 in the unfolded and stretched state has a portion where the repellent AM overlaps with the breathable film in the thickness direction. Since the repellent AM overlaps with the breathable film in the thickness direction, it is easier to diffuse the volatile components of the repellent AM over a wide area of ​​the diaper 1.

[0150] The repellent AM of the diaper 1 can be set in the front waist portion 20 or the back waist portion 30. The front waist portion 20 or the back waist portion 30 has an elastic member 23 or 33 along the width direction. When the front waist portion 20 or the back waist portion 30 has a non-stretching area where the elastic member 23 or 33 does not stretch, it is preferred that the repellent AM overlaps the non-stretching area when viewed in the thickness direction (front-back direction). The risk that the repellent effect of the repellent AM is hindered by wrinkles caused by the contraction of the elastic members 23 and 33 can be reduced, so that the repellent effect of the repellent AM to the outside can be effectively exhibited.

[0151] Furthermore, it is preferred that the crotch portion 1C where the repellent AM is provided in the diaper 1 has a marking portion M indicating the area where the repellent AM is provided. It is more preferred that the portion where the repellent AM is provided and the marking portion M overlap each other when the diaper 1 is viewed from the thickness direction. This makes it easier for the wearer or the like to correctly recognize the portion where the repellent effect of the repellent AM can be exhibited.

[0152] The marking portion M of the diaper 1 of this embodiment is formed by printing with a color (e.g., green or yellow) different from the surrounding color (e.g., white). Specifically, the marking portion M printed on the back sheet 13 located at the crotch portion 1C can be seen from the outside of the diaper 1 through the outer sheet 14.

[0153] like Figure 2As shown, the marking portion M has the words "AntiMos" or graphic elements indicating that the diaper 1 has an insect repellent (mosquito) effect. When the diaper 1 is viewed from the thickness direction, these letters and graphic elements overlap with the area where the repellent AM is located. The wearer or the like can easily recognize the area where the repellent AM is located.

[0154] However, the marking portion AM is not limited to Figure 2 The marking portion is the marking portion illustrated in the figure, and may be, for example, a graphic element or a solid color area. In addition, the material on which the marking portion AM is printed is not limited to the back sheet 13, but printing may be performed on other materials (non-woven fabric sheets, etc.) constituting the diaper 1. In addition, the marking portion AM may be formed by a compressed portion (convex and concave) where the diaper 1 is compressed. Alternatively, the marking portion AM may be formed by coloring the waist elastic members 23 and 33 or by coloring the repellent AM itself to form a color different from that of the surrounding area.

[0155] For the diaper 1, it is preferred that the color of the crotch portion 1C is more opaque than the color of the waist portions 1F and 1B. Since insects such as mosquitoes tend to prefer the color of human skin, by making the color of the crotch portion 1C more opaque than the color of the waist portions 1F and 1B, it becomes easier to increase the repellent effect of the crotch portion 1C (around the legs of the wearer) than when the color of the crotch portion 1C is transparent than the color of the waist portions 1F and 1B. This makes it possible to reduce the amount of repellent AM used in the diaper 1.

[0156] For the diaper 1, it is preferred that the thermal conductivity of the crotch portion 1C is lower than that of the waist portions 1F and 1B. Since insects such as mosquitoes tend to approach objects whose temperature is close to that of the human body, by making the thermal conductivity of the crotch portion 1C lower than that of the waist portions 1F and 1B, it becomes easier to increase the repellent effect of the crotch portion 1C (around the legs of the wearer) than in the case where the thermal conductivity of the crotch portion 1C is higher than that of the waist portions 1F and 1B. This makes it possible to reduce the amount of the repellent AM used in the diaper 1.

[0157] Furthermore, in the diaper 1, it is preferred that the air permeability of the crotch portion 1C is lower than that of the waist portions 1F and 1B. Since insects such as mosquitoes tend to prefer carbon dioxide and approach the target, by making the air permeability of the crotch portion 1C lower than that of the waist portions 1F and 1B, by making the air permeability of the crotch portion 1C equal to or greater than that of the waist portions 1F and 1B, the number of insects such as mosquitoes approaching the crotch portion 1C (leg opening LH) can be reduced. This makes it possible to reduce the amount of the repellent AM used in the diaper 1.

[0158] Although the embodiments of the present disclosure have been described above, the above embodiments of the present disclosure are only for facilitating the understanding of the present disclosure and are not to be interpreted as limiting the present disclosure in any way. The present disclosure may be modified or deformed in various ways without departing from its gist and encompasses its equivalents.

[0159] [reference numerals list]

[0160] 1 diaper (underwear type disposable diaper, disposable diaper), 1F front waist part (one side waist part),

[0161] 1B rear waist (other side waist), 1C crotch,

[0162] 1Ca front crotch area (one side crotch area),

[0163] 1Cb rear crotch area (other side crotch area), 2 joint part,

[0164] 10 absorbent body,

[0165] 11 top sheet, 12 absorbent core,

[0166] 13 back sheet (skin side sheet), 14 outer sheet (non-skin side sheet), 15 leg elastic member,

[0167] 16 leak-proof wall portion, 161 leak-proof wall elastic member, 20 front waist portion,

[0168] 21 skin side sheet, 22 non-skin side sheet, 23 waist elastic member, 30 rear waist part,

[0169] 31 skin side sheet, 32 non-skin side sheet, 33 waist elastic member, LH leg opening, BH waist opening, aa reference area, ba comparison area, ba1, ba2, ba3 area,

[0170] Cc central area, Ce lateral area,

[0171] Cbc posterior central region, Cbe posterior lateral region, M marked area

Claims

1. A disposable diaper having a longitudinal direction, a width direction and a thickness direction intersecting each other in an unfolded state and a stretched state, The disposable diaper comprises: a waist portion on one side, which is arranged on one side in the longitudinal direction; The other waist portion is arranged at the other side in the longitudinal direction; and Crotch, The disposable diaper has an insect repellent, When the disposable diaper is subjected to an attracted insect count test within 20 minutes of taking the disposable diaper out of the package, The average number of insects attracted to the crotch less than The average number of attracted insects in the waist portion on one side and the waist portion on the other side.

2. The disposable diaper according to claim 1, wherein: When the disposable diaper is subjected to an attracted insect count test 4 hours after the disposable diaper is taken out of the package, Average number of attracted insects in the crotch after 4 hours less than The average number of attracted insects in the waist part on one side and the waist part on the other side after 4 hours.

3. A disposable diaper having a longitudinal direction, a width direction and a thickness direction intersecting each other in an unfolded state and in a stretched state, The disposable diaper comprises: a waist portion on one side, which is arranged on one side in the longitudinal direction; The other waist portion is arranged at the other side in the longitudinal direction; and Absorbent core, The disposable diaper has an insect repellent, The disposable diaper has A reference area is a square having a length of 1 cm in both the longitudinal direction and the width direction, a comparison area which is a square having a length of 1 cm in both the longitudinal direction and the width direction, and The other end area, The reference region overlaps with the absorbent core when viewed in the thickness direction, The reference region is located between the center of the disposable diaper and the other side end of the absorbent core in the longitudinal direction. The other side end region is a region from one side end to the other side end in the width direction of the other side waist portion, The other side end region is a region having a length of 1 cm on the one side from the other side end of the disposable diaper, Regardless of the position of the comparison area in the other end area, The basis weight of the repellent in the reference area is higher than the basis weight of the repellent in the comparison area.

4. The disposable diaper according to claim 3, wherein: The center of the reference area The absorbent core is located between the center of the disposable diaper and the other side end of the absorbent core in the longitudinal direction, and located at the center of the disposable diaper in the width direction, and Regardless of the position of the comparison area in the other end area, The basis weight of the repellent in the reference area is higher than the basis weight of the repellent in the comparison area.

5. A disposable diaper having a longitudinal direction, a width direction and a thickness direction intersecting each other in an unfolded state and in a stretched state, The disposable diaper comprises: a waist portion on one side, which is arranged on one side in the longitudinal direction; The other waist portion is arranged at the other side in the longitudinal direction; and Crotch, The disposable diaper has an insect repellent, The crotch portion has a non-skin side sheet portion, which is located closest to the non-skin side, and a skin side sheet portion, which is adjacent to the non-skin side sheet portion on the skin side, The non-skin side sheet and the skin side sheet are bonded together by an adhesive. The crotch portion has a crotch region on one side and a crotch region on the other side, The one side crotch region is a region extending from one side end of the crotch portion to the center of the disposable diaper in the longitudinal direction. The other side crotch region is a region extending from the other side end of the crotch portion to the center position of the disposable diaper in the longitudinal direction. The maximum value of the peel strength between the non-skin side sheet and the skin side sheet in the entire other crotch region Higher than The peel strength between the non-skin side sheet portion and the skin side sheet portion is maximum in the entire one crotch region.

6. The disposable diaper according to claim 5, wherein: The maximum value of the basis weight of the repellent in the other crotch region Higher than The basis weight of the repellent in the crotch region on one side is a maximum value.

7. The disposable diaper according to claim 5, wherein: The maximum basis weight of the repellent in the crotch area on one side Higher than The basis weight of the repellent in the other crotch region is a maximum value.

8. The disposable diaper according to any one of claims 1 to 7, wherein The other waist portion is a rear waist portion.

9. The disposable diaper according to any one of claims 5 to 7, wherein: The crotch portion has a central area and a side area, When the crotch portion is divided into three equal parts in the width direction, the central area is the central area in the width direction. The side regions are regions located on both sides of the central region, and In at least one of the one side crotch region and the other side crotch region, The maximum value of the peel strength between the non-skin side sheet portion and the skin side sheet portion in the entire side region Higher than The peel strength between the non-skin side sheet portion and the skin side sheet portion is maximum in the entire central region.

10. The disposable diaper according to any one of claims 5 to 7, wherein: The crotch portion has a central area and a side area, When the crotch portion is divided into three equal parts in the width direction, the central area is the central area in the width direction. The side regions are regions located on both sides of the central region, and In at least one of the one side crotch region and the other side crotch region, The maximum value of the peel strength between the non-skin side sheet and the skin side sheet in the entire central area Higher than The peel strength between the non-skin side sheet portion and the skin side sheet portion is maximum in the entire side region.

11. The disposable diaper according to any one of claims 1 to 6, wherein: The disposable diaper has a crotch portion, The crotch portion has a central area and a side area, When the crotch portion is divided into three equal parts in the width direction, the central area is the central area in the width direction. The side regions are regions located on both sides of the central region, The crotch portion has a crotch region on one side and a crotch region on the other side, The one side crotch region is a region extending from one side end of the crotch portion to the center of the disposable diaper in the longitudinal direction. The other side crotch region is a region from the other side end of the crotch portion to the center position of the disposable diaper in the longitudinal direction, and In at least one of the one side crotch region and the other side crotch region, The maximum basis weight of the repellent in the side regions Higher than The basis weight of the repellent in the central region is a maximum.

12. The disposable diaper according to any one of claims 1 to 6, wherein: The disposable diaper has a crotch portion, The crotch portion has a central area and a side area, When the crotch portion is divided into three equal parts in the width direction, the central area is the central area in the width direction. The side regions are regions located on both sides of the central region, and The maximum basis weight of the repellent in the central region Higher than The basis weight of the repellent in the side regions is a maximum.

13. The disposable diaper according to claim 5 or 6, wherein: The other side crotch region has a first region and a second region, When the other crotch region is divided into three equal parts in the longitudinal direction and the width direction, the first region is a central region in the longitudinal direction and a central region in the width direction, The second region is a region of the other side crotch region excluding the first region, and The maximum value of the peel strength between the non-skin side sheet portion and the skin side sheet portion in the entire first region Greater than or equal to The peel strength between the non-skin side sheet portion and the skin side sheet portion is maximum in the entire second region.

14. The disposable diaper according to any one of claims 1 to 6, wherein: The disposable diaper has a crotch portion, The crotch portion has a crotch region on one side and a crotch region on the other side, The one side crotch region is a region extending from one side end of the crotch portion to the center of the disposable diaper in the longitudinal direction. The other side crotch region is a region extending from the other side end of the crotch portion to the center position of the disposable diaper in the longitudinal direction. The other side crotch region has a first region and a second region, When the other crotch region is divided into three equal parts in the longitudinal direction and the width direction, the first region is a central region in the longitudinal direction and a central region in the width direction, The second region is a region of the other side crotch region excluding the first region, and The maximum basis weight of the repellent in the first region Equal to or greater than The basis weight of the repellent in the second zone is a maximum value.

15. The disposable diaper according to any one of claims 1 to 6, wherein The disposable diaper has a crotch portion, The crotch portion has an absorbent core, and A liquid-impermeable sheet is provided on a non-skin side relative to the absorbent core, and the repellent is provided at least on the non-skin side relative to the liquid-impermeable sheet.

16. The disposable diaper according to any one of claims 1 to 6, wherein The disposable diaper has a crotch portion, The crotch portion has the repellent, The crotch portion has a marking portion indicating an area where the repellent is provided, and The disposable diaper has a portion where the portion where the repellent is provided overlaps with the marking portion when viewed in the thickness direction.

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