Absorbent pads for disposable diapers or disposable diapers

JP7919899B2Active Publication Date: 2026-09-14UNI CHARM CORP
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Patent Information

Application Number
JP2022083311
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-05-20
Publication Date
2026-09-14
Estimated Expiration
2042-05-20

AI Technical Summary

Benefits of technology

【0007】 本発明によれば、使い捨ておむつ用の吸収パッド又は使い捨ておむつの吸収体の型崩れを軽減させつつ、着用時の肌当たりを向上させることができる。

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide an absorbent diaper for disposable diapers or disposable diaper capable of improving skin contact feel when being worn, while reducing deformation of an absorber.SOLUTION: An absorbent pad for disposable diapers or disposable diaper has longitudinal, lateral and thickness directions intersecting with each other and comprises a liquid absorbent core (11a). The absorbent pad for disposable diapers or disposable diaper is characterized in that in an unfolded and stretched state, the absorbent pad (11a) includes a pair of compressed parts (E) along the longitudinal direction at a crotch part when being worn, and the pair of compressed parts (E) respectively include curved parts (F) curved outward in the lateral direction.SELECTED DRAWING: Figure 6
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Description

Technical Field

[0001] The present invention relates to an absorbent pad for disposable diapers or a disposable diaper.

Background Art

[0002] Conventionally, as in the paper diaper described in Patent Document 1, it is known that linear embossing is formed on an absorbent body to suppress side leakage of excrement.

Prior Art Literature

Patent Literature

[0003]

Patent Document 1

Summary of the Invention

Problem to be Solved by the Invention

[0004] In an absorbent body provided with linear compressed grooves like the embossing of the paper diaper in Patent Document 1, when worn, deformation of the absorbent body easily generates corners (sharp portions), and these corners may come into contact with the wearer's skin and give the wearer an uncomfortable feeling. In addition, embossing is also formed to prevent deformation of the absorbent body, but the effect is weak with linear embossing. If an attempt is made to prevent deformation of the absorbent body by increasing the formation area of linear embossing, the absorbent body becomes hard, which may impair the skin feel for the wearer.

[0005] The present invention has been made in view of the above conventional problems, and an object of the present invention is to provide an absorbent pad for disposable diapers or a disposable diaper that reduces deformation of the absorbent body and improves skin feel when worn.

Means for Solving the Problem

[0006] The main invention for achieving the above object is: having a longitudinal direction, a transverse direction, and a thickness direction that intersect each other, An absorbent pad or disposable diaper having an absorbent core that absorbs liquids, The system includes a top sheet positioned closer to the skin than the absorbent material, The aforementioned top sheet is not a sheet having an uneven surface without embossing and a hollow portion on the skin-facing side and the absorbent-facing side, In the unfolded and extended state, The absorbent core is provided with a pair of compression sections in the crotch area when worn, along the longitudinal direction. Each of the pair of compression sections has a curved section that curves outward in the lateral direction, The pair of compression sections comprises a one-side compression section provided on one side of the lateral center of the absorbent core, and a other-side compression section provided on the other side of the lateral center of the absorbent core. From the length in the lateral direction from one end of the one-sided compression section to the other end in the lateral direction, The lateral length from the other end of the one-sided compression section to the other end of the other-sided compression section is longer. An absorbent pad for disposable diapers or a disposable diaper characterized by the above. Other features of the present invention will be made clearer by description in this specification and the accompanying drawings. [Effects of the Invention]

[0007] According to the present invention, it is possible to reduce deformation of absorbent pads for disposable diapers or absorbent material of disposable diapers while improving the feel against the skin when worn. [Brief explanation of the drawing]

[0008] [Figure 1] This is a schematic perspective view of diaper 1. [Figure 2] This is a plan view of diaper 1 in its unfolded and extended state, seen from the skin side. [Figure 3] This is a schematic cross-sectional view along line AA in Figure 2. [Figure 4] This is a plan view of the absorbent body 10. [Figure 5] Figure 5A is a schematic cross-sectional view taken along the arrow XX in Figure 4. Figure 5B is a schematic cross-sectional view taken along the arrow YY in Figure 4. Figure 5C is a schematic cross-sectional view taken along the arrow ZZ in Figure 4. [Figure 6] This is a plan view of the absorber 11. [Figure 7]It is a diagram showing the absorbent body 11 of a comparative example.

Mode for Carrying Out the Invention

[0009] At least the following matters will become apparent from the description of the present specification and the accompanying drawings. Aspect 1 has a longitudinal direction, a lateral direction, and a thickness direction that intersect each other, An absorbent pad for a disposable diaper or a disposable diaper comprising a liquid-absorbent absorbent core, wherein in the unfolded and stretched state, the absorbent core is provided with a pair of compressed portions along the longitudinal direction at the crotch portion when worn, and the pair of compressed portions each have a curved portion curving outward in the lateral direction. The invention is an absorbent pad for a disposable diaper or a disposable diaper characterized by the above.

[0010] According to Aspect 1, while maintaining the softness of the absorbent core in the portion surrounded by the curved portions of the pair of compressed portions, the rigidity of the absorbent core is increased by the pair of compressed portions, thereby making it easy to maintain the shape of the absorbent core at the portion that first absorbs excrement when worn. By providing the compressed portions with curved portions, the risk of excessively increasing the rigidity of the laterally outer side of the absorbent core can be reduced, and the skin feel to the wearer during wear can be improved.

[0011] Aspect 2 is the absorbent pad for a disposable diaper or the disposable diaper according to Aspect 1, wherein the pair of compressed portions are provided ventral to the longitudinal center of the disposable diaper or the absorbent pad for a disposable diaper.

[0012] According to Aspect 2, since the compressed portions are portions with high rigidity, the risk that the compressed portions contact the buttocks and cause discomfort to the wearer when the wearer is in a sitting or lying posture can be reduced.

[0013] Aspect 3 is the absorbent pad for a disposable diaper or the disposable diaper according to Aspect 2, wherein in the longitudinal direction, the pair of compressed portions are provided in at least a part of the urine outlet corresponding region when the absorbent core is worn.

[0014] According to aspect 3, since the absorbent core is provided in the urine discharge opening corresponding region that absorbs urine in the longitudinal direction of the absorbent core, it becomes easy to maintain the shape of the absorbent core after urine absorption.

[0015] Aspect 4 is the absorbent pad for a disposable diaper or the disposable diaper according to any one of aspects 1 to 3, wherein the pair of compressed portions comprises a one-side compressed portion provided on one side relative to the transverse center of the absorbent core, and an other-side compressed portion provided on the other side relative to the transverse center of the absorbent core, the one-side compressed portion comprises a first curved portion and a second curved portion, and the outermost end of the first curved portion in the transverse direction is provided on the ventral side relative to the outermost end of the second curved portion in the transverse direction.

[0016] According to aspect 4, while the curved portion of the compressed portion improves skin feel against the wearer during wear, the rigidity of the portion in the longitudinal direction between the outermost transverse ends of the first curved portion and the second curved portion, which are provided at different positions in the longitudinal direction of the compressed portion, can be increased, whereby the rigidity of the absorbent core can be increased, and it becomes easy to maintain the shape of the absorbent core.

[0017] Aspect 5 is the absorbent pad for a disposable diaper or the disposable diaper according to aspect 4, wherein the first curved portion and the second curved portion constitute at least a part of the one-side compressed portion, and the one-side compressed portion is continuous in the longitudinal direction.

[0018] According to aspect 5, since the one-side compressed portion, which includes the first curved portion and the second curved portion as parts thereof, is continuous in the longitudinal direction, in the longitudinal direction of the absorbent core, the risk of bending along the transverse direction and the risk of tearing of the absorbent core in the region overlapping with the one-side compressed portion can be reduced.

[0019] Embodiment 6 is an absorbent pad for disposable diapers or disposable diaper according to any one of Embodiments 1 to 5, wherein the pair of compression parts comprises a one-side compression part provided on one side of the lateral center of the absorbent core and a other-side compression part provided on the other side of the lateral center of the absorbent core, and the lateral length from the other end of the one-side compression part to the one-side end of the other-side compression part is longer than the lateral length from the one end of the one-side compression part to the other end of the other-side compression part.

[0020] According to embodiment 6, when the lateral length from the other end of one compression section to the one end of the other compression section is shorter than the lateral length of one compression section, the region between the one compression section and the other compression section can be used as a force buffering region for the absorbent core. This makes it possible to make the absorbent core more flexible and improve the feel against the skin when worn.

[0021] Embodiment 7 is an absorbent pad for disposable diapers or disposable diaper according to any one of Embodiments 1 to 6, wherein the pair of compression parts comprises a one-side compression part provided on one side of the lateral center of the absorbent core and a other-side compression part provided on the other side of the lateral center of the absorbent core, and the lateral length from the other end of the one-side compression part to the one end of the other-side compression part is longer than the lateral length from the one-side end of the one-side compression part to the one-side end of the other-side compression part at the narrowest part where the lateral length of the absorbent core is shortest.

[0022] According to embodiment 7, the lateral length between the other end of the one-sided compression section and the one end of the other-sided compression section is shorter than the lateral length from the one end of the one-sided compression section at the narrowest point to the one end of the one-sided compression section. This allows the one-sided compression section to be positioned on the lateral outer side (one side) of the absorbent core, thereby reducing the risk of the absorbent core's shape collapsing from the lateral outer side.

[0023] Embodiment 8 is an absorbent pad for disposable diapers or disposable diaper according to any one of Embodiments 1 to 7, wherein the pair of compression parts comprises a one-side compression part provided on one side of the lateral center of the absorbent core and a other-side compression part provided on the other side of the lateral center of the absorbent core, and the length in the vertical direction from the ventral end to the dorsal end of the one-side compression part is longer than the length in the horizontal direction from the one end to the other end of the one-side compression part.

[0024] According to embodiment 8, the one-sided compression section can be configured to be longer in the vertical direction than when the vertical length from the ventral end to the dorsal end of the one-sided compression section is shorter than the horizontal length from one end to the other end of the one-sided compression section. This makes it easier to maintain the shape over a wide area in the vertical direction of the absorbent core.

[0025] Embodiment 9 is a disposable diaper having a pair of waist portions, wherein, when viewed in the thickness direction, the area of ​​the region where the waist portions and the absorbent core overlap, in which the waist portions and the pair of compression portions do not overlap, is greater than the area of ​​the region where the waist portions and the pair of compression portions overlap, as described in any of Embodiments 1 to 8.

[0026] According to embodiment 9, the pair of compression parts can reduce the risk of the waist area causing discomfort to the wearer's skin.

[0027] Embodiment 10 is a disposable diaper having a pair of waist portions, wherein the waist portions are equipped with a waist elastic member that is expandable in the lateral direction, and the pair of compression portions, when viewed in the thickness direction, have portions that do not overlap with the waist elastic member, and is an absorbent pad for a disposable diaper or a disposable diaper according to any one of Embodiments 1 to 9.

[0028] According to embodiment 10, the risk of the highly rigid compression section being pressed against the wearer's skin by the contraction force of the elastic member around the waist can be reduced, thereby reducing the likelihood of a decrease in skin feel.

[0029] Embodiment 11 is an absorbent pad for disposable diapers or disposable diaper according to any one of Embodiments 1 to 10, wherein the pair of compression parts comprises a one-side compression part provided on one side of the lateral center of the absorbent core and a other-side compression part provided on the other side of the lateral center of the absorbent core, and the one-side compression part comprises an inner compression part and an outer compression part located laterally outward from the inner compression part.

[0030] According to embodiment 11, the lateral rigidity of the absorbent core can be increased, making it easier to maintain the shape of the absorbent core.

[0031] Embodiment 12 is an absorbent pad for disposable diapers or disposable diaper according to Embodiment 11, wherein the maximum value of the lateral distance between the inner compression portion and the outer compression portion is shorter than the lateral length from one end of the inner compression portion to the other end.

[0032] According to embodiment 12, the rigidity of the region between the inner and outer compressed sections in the lateral direction can be increased compared to when the maximum lateral distance between the inner compressed section and the outer compressed section is longer than the lateral length from one end to the other end of the inner compressed section. This allows for increased rigidity on one side of the absorbent core, making it easier to maintain the shape of one side of the absorbent core.

[0033] Embodiment 13 is an absorbent pad for disposable diapers or a disposable diaper according to any one of Embodiments 1 to 12, wherein the length of the absorbent core in the thickness direction in the compression portion is 15% or more and 40% or less of the length of the central part of the absorbent core in the thickness direction in the transverse direction.

[0034] According to embodiment 13, when the length of the absorbent core in the thickness direction in a pair of compression sections is shorter than 15% of the length of the central part of the absorbent core in the lateral direction, the risk of the compression section becoming excessively hard and causing discomfort to the wearer's skin is reduced. At the same time, when the length of the absorbent core in the thickness direction in a pair of compression sections is longer than 40% of the length of the central part of the absorbent core in the lateral direction, the rigidity of the absorbent core is improved, and deformation of the absorbent core is reduced.

[0035] Embodiment 14 is an absorbent pad or disposable diaper according to any of Embodiments 1 to 13, having an absorbent body equipped with the absorbent core, the absorbent body having a pair of leak-proof wall portions at both ends in the lateral direction, each of which has a leak-proof wall elastic member along the longitudinal direction, the leak-proof wall portion each having a skin-side leak-proof wall portion provided closest to the skin and a non-skin-side leak-proof wall portion provided further away from the skin, the inner end of each leak-proof wall portion in the lateral direction having a first fixing portion to which at least a portion of the skin-side leak-proof wall portion and the non-skin-side leak-proof wall portion facing each other are joined and fixed, and the pair of compression portions overlapping with the first fixing portion in the longitudinal direction.

[0036] According to embodiment 14, the portion where the first fixing portion is provided is a portion that can easily bring the leak-proof wall portion into contact with the wearer's skin. Even when force is applied to the absorbent core when the leak-proof wall portion comes into contact with the wearer's skin during wear, the rigidity of the compression portion makes it easier to maintain the shape of the absorbent core.

[0037] Embodiment 15 is an absorbent pad or disposable diaper for disposable diapers according to any one of Embodiments 1 to 14, having an absorbent body comprising the absorbent core and the skin-side sheet, wherein the absorbent body has a pair of leak-proof wall portions at both ends in the transverse direction, each having a leak-proof wall elastic member along the longitudinal direction, and a second fixing portion to which at least a portion of the non-skin side of the opposing leak-proof wall portions and the skin side of the skin-side sheet are joined and fixed, and in the longitudinal direction, the pair of compression portions have portions that overlap with the second fixing portion.

[0038] According to embodiment 15, the portion provided with the second fixing portion is a portion that can easily bring the leak-proof wall portion into contact with the wearer's skin. Even when the leak-proof wall portion comes into contact with the wearer's skin during wear and force is applied to the absorbent core, the rigidity of the compression portion makes it easier to maintain the shape of the absorbent core.

[0039] Embodiment 16 is an absorbent pad or disposable diaper for disposable diapers according to any one of Embodiments 1 to 14, having an absorbent body equipped with the absorbent core, wherein the absorbent body has leak-proof wall portions at both ends in the lateral direction, each portion having a leak-proof wall elastic member oriented in the longitudinal direction, and a pair of compression portions are provided inward from the leak-proof wall portions in the lateral direction.

[0040] According to embodiment 16, the compression portion provided in the absorbent core reduces deformation of the absorbent core, making it easier to absorb excrement, while by not providing a compression portion in the portion that protrudes towards the skin as a leak-proof wall, it is possible to reduce discomfort to the wearer's skin due to the rigidity of the compression portion when wearing the garment.

[0041] ===Execution=== The present invention will be described using an adult pant-type disposable diaper 1 (hereinafter also referred to as "diaper 1") as an example of an absorbent pad for disposable diapers or a disposable diaper. However, the absorbent pad for disposable diapers or disposable diapers according to the present invention also includes absorbent pads and panty-type sanitary napkins used together with disposable diapers. Furthermore, the wearer of the absorbent pad for disposable diapers or disposable diapers is not limited to adults, but may also be an infant or an animal. Note that the absorbent pad for disposable diapers or disposable diapers according to the present invention does not include sanitary napkins.

[0042] <Composition of Diaper 1> Figure 1 is a schematic perspective view of diaper 1. Figure 2 is a plan view of diaper 1 in its unfolded and stretched state, seen from the skin side. Figure 3 is a schematic cross-sectional view along line AA in Figure 2. "Unfolded state" refers to the state in which the side joints 20, which are the joints between the side (side end) 30sw of the ventral waistband 30 and the side (side end) 40sw of the dorsal waistband 40 on both sides of the pant-type diaper 1, are separated and opened, and the entire diaper 1 is unfolded in a planar manner. "Stretched state" refers to the state in which the elastic members of diaper 1 are stretched to the extent that wrinkles in diaper 1 are no longer visible. Specifically, this refers to the state in which the dimensions of each component constituting diaper 1 (for example, the ventral waistband 30 described later) are stretched until they match or are close to the dimensions of the individual component. In Figure 2, the CC line represents the horizontal centerline (also called the "horizontal center CC"), and the CL line represents the vertical centerline (also called the "vertical center CL").

[0043] The diaper 1 in its pant-type state has intersecting vertical, horizontal, and front-to-back directions, and has a waist opening BH and a pair of leg openings LH, LH. The upper side in the vertical direction corresponds to the waist opening BH side, and the lower side corresponds to the crotch side. The front side in the front-to-back direction corresponds to the wearer's abdominal side, and the back side corresponds to the wearer's back side. The horizontal direction is along the stretching direction of the abdominal waist elastic members 35, 45 of the abdominal waist portion 30 and the back waist portion 40. The vertical direction of the diaper 1 in its unfolded and extended state corresponds to the longitudinal direction of the absorbent body 10 and is along the vertical direction of the diaper 1 in its pant-type state. Also, as shown in Figure 3, the direction in which the materials constituting the diaper 1 are layered is defined as the thickness direction. In the thickness direction, the side that comes into contact with the wearer's skin is defined as the skin side, and the opposite side is defined as the non-skin side.

[0044] Diaper 1 is a so-called three-piece type pant diaper having a liquid-absorbing absorbent main body 10, an abdominal waist section 30 that covers the wearer's abdominal side, and a back waist section 40 that covers the wearer's back.

[0045] As shown in Figure 2, in the unfolded and extended state, the ventral waist portion 30 and the dorsal waist portion 40 are arranged parallel to each other with a vertical gap between them, and the absorbent body 10 is stretched between them. The longitudinal ends 10ea and 10eb of the absorbent body 10 are joined and fixed to the skin side of the nearest waist portions 30 and 40, respectively, and the external shape is approximately H-shaped in plan view. From this state, the absorbent body 10 is folded in half with the longitudinal center position (center line) CL as the folding position. In other words, the lower end in the vertical direction of the diaper 1 in the pant-type state corresponds to the center CL of the diaper 1 in the unfolded and extended state. In this folded state, the ventral waist portion 30 and the dorsal waist portion 40, which face each other, are joined and connected to each other at the lateral sides 30sw and 40sw, respectively, forming a pair of side joining portions 20, 20. In other words, the ventral waist portion 30 and the dorsal waist portion 40 are formed in an annular shape by a pair of side joints 20, 20. This results in a pant-type diaper 1 with a waist opening BH and a pair of leg openings LH, LH as shown in Figure 1. The side joints 20 are formed by known joining means such as welding or adhesive.

[0046] (Ventral girth area 30) The ventral waist portion 30 is located on the non-skin side of the absorbent body 10. As shown in Figure 3, the ventral waist portion 30 has a skin-side sheet 31 located on the skin side in the thickness direction, a non-skin-side sheet 32 ​​laminated adjacent to the non-skin side of the skin-side sheet 31, and a ventral waist elastic member 35 provided between the skin-side sheet 31 and the non-skin-side sheet 32. The ventral waist portion 30 basically has a two-layer structure of a skin-side sheet 31 and a non-skin-side sheet 32, but it may have a configuration of three or more layers in part, for example, a skin-side sheet 36 (described later).

[0047] The skin-side sheet 31 is a rectangular sheet member in plan view and is made of, for example, SMS nonwoven fabric. The non-skin-side sheet 32 ​​is a sheet member made of a nonwoven fabric that is rectangular in plan view and is made of, for example, SMS nonwoven fabric. The skin-side sheet 31 and the non-skin-side sheet 32 ​​can each be of any size and shape. Furthermore, the upper or lower end of the non-skin-side sheet 32 ​​may have a folded portion that is folded back from the non-skin side to the skin side and from the front side to the rear side in the vertical direction.

[0048] The ventral waist elastic member 35 is a stretchable member that is provided along the transverse direction and is expandable in the transverse direction. In this embodiment, multiple elastic threads are used. Multiple ventral waist elastic members 35 are arranged in a vertical direction between the skin-side sheet 31 and the non-skin-side sheet 32, and are attached using an adhesive such as hot melt adhesive while stretched in the transverse direction. Due to the elasticity of the ventral waist elastic member 35, the ventral waist portion 30 fits the wearer's ventral waist. In this embodiment, the diaper 1 uses elastic threads as the ventral waist elastic member 35 in the ventral waist portion 30, but stretchable members such as stretchable sheets may also be used to stretch the ventral waist portion 30 in the transverse direction.

[0049] Furthermore, the ventral waist portion 30 has a skin-facing sheet 36. As shown in Figure 3, the skin-facing sheet 36 is a sheet member positioned to cover the upper end of the absorbent body 10 from the skin side, and functions as a cover sheet. This prevents the upper end of the absorbent body 10 from digging into the wearer's skin when the diaper 1 is worn. The skin-facing sheet 36 is made of, for example, SMS nonwoven fabric. Note that the skin-facing sheet 36 is not necessarily required.

[0050] (Dorsal girth area 40) The dorsal waist portion 40 has substantially the same configuration as the ventral waist portion 30. That is, the dorsal waist portion 40 is located on the non-skin side of the absorbent body 10 and has a skin-side sheet 41 located on the skin side in the thickness direction, a non-skin-side sheet 42 laminated adjacent to the non-skin side of the skin-side sheet 41, and a dorsal waist elastic member 45 provided between the skin-side sheet 41 and the non-skin-side sheet 42, oriented in the transverse direction. It may also have a skin-side sheet 46, etc., similar to the ventral waist portion 30 (see Figures 2 and 3), and may have a folded portion (not shown).

[0051] Similar to the ventral torso portion 30, the skin-side sheet 41 is a sheet material, formed from, for example, SMS nonwoven fabric. The non-skin-side sheet 42 is a sheet material, formed from, for example, SMS nonwoven fabric.

[0052] The back waist elastic member 45 is a stretchable member that is provided along the lateral direction and is expandable in the lateral direction, and in this embodiment, a thread elastic is used. Multiple back waist elastic members 45 are arranged in a vertical direction (up and down) between the skin-side sheet 41 and the non-skin-side sheet 42, and are attached using an adhesive such as a hot melt adhesive while stretched in the lateral direction. Due to the elasticity exhibited by the back waist elastic member 45, the back waist portion 40 fits the back waist of the wearer. In this embodiment, the diaper 1 uses a thread elastic as the back waist elastic member 45 in the back waist portion 40, but a stretchable member such as a stretchable sheet may also be used to stretch the back waist portion 40 in the lateral direction.

[0053] The external shape of the dorsal waist portion 40 differs from that of the ventral waist portion 30. As shown in Figure 2, it has a buttock region 40b that is roughly trapezoidal in the vertical direction (upper direction) below the side joint portion 20 (side portion 40sw). The width of the buttock region 40b increases from the lower side to the upper side in the vertical direction. The presence of the buttock region 40b allows the dorsal waist portion 40 to cover the wearer's buttocks when the diaper 1 is worn. In other words, the buttock region 40b functions as a buttock cover.

[0054] Furthermore, a curved elastic member 47, such as a thread elastic, is provided in the buttock region 40b as shown in Figure 2. The curved elastic member 47 is attached between the skin-side sheet 41 and the non-skin-side sheet 42 in an extended state along the outer edge of the buttock region 40b, and comprises an end elastic portion 47a and an inclined elastic portion 47b. Due to the elasticity exhibited by the curved elastic member 47, when the diaper 1 is worn, the buttock region 40b of the back waist portion 40 fits more easily to the wearer's buttocks and is less likely to roll up from the buttocks. The diaper 1 has three curved elastic members 47, each with a continuous end elastic portion 47a and an inclined elastic portion 47b. Specifically, three curved elastic members 47 are provided, with the inclined elastic portion 47b, end elastic portion 47a, and inclined elastic portion 47b in that order from one side in the lateral direction.

[0055] The end elastic portion 47a is an elastic member provided at the ventral end (lower end in the vertical direction) of the dorsal torso circumference portion 40 in the longitudinal direction, and ventrally (lower) than the side joint portion 20 (side joint portion on the dorsal torso circumference portion 40 side). The end elastic portion 47a is aligned in the transverse direction and is stretchable in the transverse direction. The inclined elastic portion 47b is an elastic member provided at both sides of the dorsal torso circumference portion 40 in the transverse direction, and ventrally (lower) than the side joint portion 20. The inclined elastic portion 47b is inclined from the inside to the outside in the transverse direction, and from the ventral side to the dorsal side, and is expandable and contractible in the inclined direction from the inside to the outside in the transverse direction, and from the ventral side to the dorsal side. The curved elastic member 47, like the dorsal torso elastic member 45, is arranged in multiples in the vertical direction (longitudinal direction) between the skin-side sheet 41 and the non-skin-side sheet 42, and is attached using an adhesive such as a hot melt adhesive while stretched in the desired direction.

[0056] (Absorbent body 10) The absorbent body 10 is placed against the wearer's groin area when worn and absorbs excretions such as urine. Figure 4 is a plan view of the absorbent body 10. Note that in Figures 2 and 4, for convenience, the non-skin side elastic member 16 (described later) is shown with a thick line, but this does not represent the thickness or elasticity of the non-skin side elastic member 16. Figure 5A is a schematic cross-sectional view taken along the arrow XX in Figure 4. Figure 5B is a schematic cross-sectional view taken along the arrow YY in Figure 4. Figure 5C is a schematic cross-sectional view taken along the arrow ZZ in Figure 4. Figure 5A shows a cross-section at XX, and members located ventrally from XX are omitted. Figure 5B shows a cross-section at YY, and members located ventrally from YY are omitted. Figure 5C shows a cross-section at ZZ, and members located ventrally from ZZ are omitted.

[0057] The absorbent body 10 includes an absorbent core 11 for absorbing excrement, a top sheet 12 positioned closer to the skin than the absorbent core 11, a back sheet 14 positioned closer to the non-skin side than the absorbent core 11, an outer sheet 15, and a non-skin side elastic member (elastic member) 16. However, the absorbent body 10 may also include other sheet members. For example, a second sheet (not shown) may be provided between the top sheet 12 and the absorbent core 11.

[0058] The absorbent body 11 has an absorbent core 11a and a core wrap sheet 11b. Figure 6 is a plan view of the absorbent body 11. The absorbent core 11a is a member that absorbs and retains excrement, and is formed from liquid absorbent fibers such as pulp fibers mixed with a superabsorbent polymer (SAP). In this embodiment, the absorbent core 11a has a roughly hourglass shape in plan view. The absorbent core 11a has a constricted portion in the center in the longitudinal direction, where the length in the transverse direction is shortened, and has a narrowest portion 11N where the transverse length of the absorbent core 11a is shortest, ventrally CL. On the ventral and dorsal sides of the central CL in the longitudinal direction, there is a ventral widest portion 11MA and a dorsal widest portion 11MB, respectively, where the transverse length of the absorbent core 11a is widest. The lengths of the ventral widest portion 11MA and the dorsal widest portion 11MB are approximately the same. Note that the shape of the absorbent core 11a is not limited to this shape and can be any shape. Furthermore, although a single absorbent core 11a is used in this embodiment, the absorbent core 11a may be stacked in two layers in the thickness direction.

[0059] The absorbent core 11a is covered on its outer surface with a sheet material such as a liquid-permeable core wrap sheet 11b made of tissue paper or nonwoven fabric. However, it is not necessary to include the core wrap sheet 11b.

[0060] The absorbent core 11a has a pair of deformation-guiding sections S. The pair of deformation-guiding sections S guide the deformation of the absorbent core 11a. In this embodiment, the deformation-guiding sections S are grooves that have been thinned by making cuts that do not penetrate in the thickness direction, and are provided on the dorsal side of the center CL. Also, as shown in Figure 4, the pair of deformation-guiding sections S have a shape symmetrical with respect to the lateral center line CC, and are linear grooves that are inclined from the ventral side to the dorsal side in the longitudinal direction, and from the inside to the outside in the lateral direction. By having the deformation-guiding sections S, the absorbent core 11a becomes easier to deform starting from the deformation-guiding sections S. However, the deformation-guiding sections S may be of any shape and size depending on the deformation of the absorbent core 11a. Also, the deformation-guiding sections S are not limited to grooves, but may also be configurations that can guide deformation, such as through sections that penetrate in the thickness direction or compressed sections that are compressed in the thickness direction. Note that it is not always necessary to have deformation-guiding sections S.

[0061] The top sheet 12 is a liquid-permeable sheet, and for example, a hydrophilic air-through nonwoven fabric or a spunbond nonwoven fabric can be used. In this embodiment, as shown in Figures 5A to 5C, both lateral sides are folded back to the non-skin side so as to wrap around the absorbent 11.

[0062] The non-skin side of the absorbent body 11 has a back sheet 14 and a hydrophobic outer sheet 15 positioned on the non-skin side. For the back sheet 14, for example, a resin film is used, and for the outer sheet 15, for example, a flexible nonwoven fabric is used. The outer sheet 15 is positioned on the non-skin side of the back sheet 14 and forms a leak-proof wall portion 50 on the skin side of the top sheet 12.

[0063] As shown in Figures 2, 4, and 5B, a pair of non-skin elastic members 16 are provided on both ends of the absorbent body 10, oriented longitudinally, between the back sheet 14 and the outer sheet 15, and in the crotch area when worn. The crotch area corresponds to the area between the ventral waist portion 30 and the dorsal waist portion 40 in the longitudinal direction of the diaper 1 in its unfolded and extended state, and in this crotch area, both ends of the diaper 1 are the both ends of the absorbent body 10. Specifically, as shown in Figure 2, etc., the pair of non-skin elastic members 16 are longitudinally stretchable elastic members with a shorter longitudinal length than the leak-proof wall elastic members 51 and 52 described later, and are provided between the widest ventral portion 11MA and the widest dorsal portion 11MB of the absorbent core 11a, and straddling the central CL. In this embodiment, three longitudinally oriented elastic threads are fixed between the back sheet 14 and the outer sheet 15 with adhesive or the like when extended. The contraction of the non-skin-side elastic member 16 makes it easier to curve the shape of the absorbent core 11a, so that when worn, both vertical ends of the absorbent body 10, including the absorbent core 11a, stand up toward the skin, and the vertical central part is more easily concave.

[0064] A pair of leak-proof walls 50 are provided on both sides of the absorbent body 10 in the lateral direction, along the longitudinal direction of the absorbent body 10. In this embodiment, the leak-proof walls 50 are formed by an outer sheet 15 and include leak-proof elastic members 51 and 52. Specifically, in the lateral direction, a portion of the outer sheet 15 extends outward beyond both ends of the absorbent body 11, and is folded in multiple places toward the skin side as shown in Figures 5A to 5C, with the leak-proof elastic members 51 and 52 fixed to the outer sheet 15, forming a pair of leak-proof walls 50 with a substantially S-shaped cross-section.

[0065] Each pair of leak-proof wall sections 50 has a skin-side leak-proof wall section 50a located closest to the skin, and a non-skin-side leak-proof wall section 50b located further away from the skin-side leak-proof wall section 50a. In the skin-side leak-proof wall section 50a, four leak-proof elastic members 51 are fixed horizontally in a longitudinal direction between two folded outer sheets 15. The four leak-proof elastic members 51 are positioned towards the outer, lateral end of the leak-proof wall section 50. In the non-skin-side leak-proof wall section 50b, two leak-proof elastic members 52 are fixed horizontally in a longitudinal direction between two folded outer sheets 15. The two leak-proof elastic members 52 are positioned towards the inner, lateral end of the leak-proof wall section 50. When diaper 1 is worn, the leak-proof wall portion 50 stands up on the wearer's skin side and fits to the wearer's crotch area, based on the elasticity of the leak-proof wall elastic members 51 and 52.

[0066] As shown in Figure 4, end fixing parts 53 are provided at both ends of the absorbent body 10, at the ventral and dorsal ends in the longitudinal direction of the diaper 1, to fix the leak-proof wall portion 50 in a non-upright position. Each end fixing part 53 has a fixing part that fixes at least a portion of the opposing skin-side leak-proof wall portion 50a and non-skin-side leak-proof wall portion 50b with adhesive, and a fixing part that fixes at least a portion of the opposing non-skin-side leak-proof wall portion 50b and the top sheet 12 with adhesive. In the longitudinal direction of the absorbent body 10, the portion of the outer sheet 15 between the end fixing parts 53 becomes the upright portion of the leak-proof wall portion 50. For example, when the wearer is in a lying position, even if the excrement blocked by the leak-proof wall portion 50 flows forward or backward, the end fixing parts 53 at both ends in the longitudinal direction can block the excrement, suppressing front leakage and back leakage.

[0067] Furthermore, the absorbent body 10 has intermittent fixing portions 54 that fix the leak-proof wall portion 50 to the top sheet 12 at positions spaced longitudinally apart from the ventral end fixing portion 53 and the dorsal end fixing portion 53. As shown in Figure 5A, the intermittent fixing portions 54 fix the opposing non-skin side leak-proof wall portions 50b and the top sheet 12 with adhesive or the like. By providing the intermittent fixing portions 54 of the leak-proof wall portion 50 and shortening the length of the portion that can stand upright in the lateral direction, the sagging of the absorbent core 11a when worn can be suppressed.

[0068] Furthermore, as shown in Figures 4 and 5B, the inner end of the leak-proof wall portion 50 in the lateral direction has a pinch fixing portion 55 that joins and fixes at least a portion of the skin-side leak-proof wall portion 50a and the non-skin-side leak-proof wall portion 50b that face each other. Specifically, the pinch fixing portion 55 joins a portion of the space between the skin-side leak-proof wall portion 50a and the non-skin-side leak-proof wall portion 50b with an adhesive or the like. In this embodiment, the pinch fixing portion 55 is provided along the longitudinal direction (vertical direction) of the absorbent body 10 (Figure 4). By providing the pinch fixing portion 55, it becomes easier to maintain the folded shape of the leak-proof wall portion 50 by the outer sheet 15. When worn, the non-skin-side leak-proof wall portion 50b is raised towards the skin by the leak-proof wall elastic member 52, and the skin-side leak-proof wall elastic member 51 positioned on the skin-side leak-proof wall portion 50a makes it easier for the skin-side leak-proof wall portion 50a to make surface contact with the wearer's skin. In addition, since the pinch fixing portion 55 is a relatively rigid part, it is easier to maintain the surface shape of the skin-side leak-proof wall portion 50a, making it easier to adhere firmly to the wearer's skin.

[0069] The end fixing portion 53, intermittent fixing portion 54, and pinch fixing portion 55 described above were formed by applying adhesive, but are not limited to this. For example, they may be formed using a pressing method such as embossing. Also, the end fixing portion 53, intermittent fixing portion 54, and pinch fixing portion 55 are not limited to a rectangular shape in plan view, but may be any shape, and one or more fixing portions may be arranged in the horizontal or vertical direction. The non-skin side elastic member 16 and the leak-proof wall elastic members 51 and 52 described above were each made of elastic thread, but are not limited to this. For example, an elastic member such as an expandable sheet may be used. Also, the non-skin side elastic member 16 and the leak-proof wall elastic members 51 and 52 each consist of multiple elastic members (elastic thread), but each may consist of one or any number of two or more.

[0070] <Regarding the pair of compression sections E> As shown in Figure 2, the absorbent body 10 has a pair of compression sections E (Ea, Eb) on both sides ventrally from the center CL. The compression sections E are compression sections formed by applying pressure in the thickness direction from the skin side while the absorbent core 11a is covered with the core wrap sheet 11b. The pair of compression sections E have one side compression section Ea on one side in the lateral direction and the other side compression section Eb on the other side. The one side compression section Ea and the other side compression section Eb have a symmetrical shape with respect to the lateral center line CC. In this embodiment, the one side compression section Ea has two one side compression sections Ea1 and Ea2 with a continuous wave shape along the longitudinal direction, and the other side compression section Eb has two one side compression sections Eb1 and Eb2 with a continuous wave shape along the longitudinal direction.

[0071] One side compression section Ea1 is also called the inner compression section Ea1, and one side compression section Ea2 is also called the outer compression section Ea2. The other side compression section Eb1 is also called the inner compression section Eb1, and the other side compression section Eb2 is also called the outer compression section Eb2. The outer compression section Ea2 is located on the outside (one side) of the inner compression section Ea1 in the lateral direction, and the outer compression section Eb2 is located on the outside (the other side) of the inner compression section Eb1 in the lateral direction.

[0072] This pair of compression sections E are provided in the crotch area when the absorbent core 11a is worn, in the unfolded and extended state of the diaper 1, and each has a curved section F that curves outward in the lateral direction. In this embodiment, as shown in Figure 6, one compression section Ea1 of the diaper 1 has a curved section Fa1 that curves outward in the lateral direction, and the other compression section Eb1 has a curved section Fb1 that curves outward in the lateral direction. This maintains the softness of the absorbent core 11a in the area surrounded by the curved sections Fa1 and Fb1 of the pair of compression sections E, making it easier to maintain the shape of the absorbent core 11a, while reducing the risk of the lateral outer rigidity of the absorbent core 11a becoming excessively high, thereby improving the feel against the wearer's skin when worn.

[0073] Figure 7 shows an absorbent material 11 of a comparative example. For example, as shown in Figure 7A, if the absorbent core 11a is provided with linear compression sections E along the vertical direction, the area of ​​the absorbent core 11a where the compression sections E are provided is small. Therefore, when worn, there is a risk that the absorbent core 11a may lose its shape due to the absorption of excretions such as urine or the wearer's movements. If the number of these linear compression sections E is increased to prevent the absorbent core 11a from losing its shape, the absorbent core 11a may become excessively hard, potentially reducing its comfort against the wearer's skin.

[0074] Furthermore, Figure 7B shows an absorbent core 11a (absorbent body 11) in which multiple linear compression sections E, which are inclined with respect to the vertical direction, are arranged vertically, and Figure 7C shows an absorbent core 11a (absorbent body 11) in which linear compression sections E, which are inclined with respect to the vertical direction, are arranged continuously vertically, resulting in an absorbent core 11a with zigzag-shaped compression sections E. As shown in Figures 7B and 7C, when the linear compression sections E are inclined with respect to the vertical direction, the area on which the compression sections E are provided relative to the absorbent core 11a becomes wider, making it easier to prevent the absorbent core 11a from losing its shape. However, in the case of the compression section E shown in Figure 7B, when worn, if force is applied from the outside to the inside of the absorbent core 11a by the wearer's legs, the outer side of the highly rigid compression section E in the horizontal direction, and the end on the central CL side, becomes a corner, which may cause the diaper 1 (absorbent core 11a) to come into localized contact with the wearer's legs, potentially reducing skin contact with the wearer or causing discomfort. Even in the compression section E shown in Figure 7C, when worn, the lateral outer apex of the highly rigid compression section E becomes a corner, which may cause the diaper 1 (absorbent core 11a) to come into localized contact with the wearer's leg, potentially reducing skin contact and causing discomfort.

[0075] In contrast, as shown in Figure 6, the diaper 1 is equipped with a pair of compression sections E, where one compression section Ea1 has a curved section Fa1 that curves outward in the lateral direction, and the other compression section Eb1 has a curved section Fb1 that curves outward in the lateral direction. This reduces the risk of the absorbent core 11a losing its shape compared to a straight compression section E as shown in Figure 7A, and makes it easier to maintain the shape of the absorbent core 11a. Furthermore, while the compression section E is a highly rigid part of the absorbent core 11a, the portion enclosed by the curved section Fa1 and the curved section Fb1 that curve outward in the lateral direction makes it easier to maintain the softness of the absorbent core 11a. Furthermore, because the curved portions Fa1 and Fb1 are curved outward in the lateral direction, the risk of the absorbent core 11a becoming excessively hard due to the formation of a corner on the lateral side by the highly rigid compression portion E during wear is reduced. Therefore, even when the wearer's legs come into contact with the diaper 1 from the lateral side, the feel of the diaper 1 against the wearer's skin can be improved.

[0076] Furthermore, each pair of compression sections E has a one-side compression section Ea (Ea1, Ea2) provided on one side of the lateral central CC of the absorbent core 11a, and a other-side compression section Eb (Eb1, Eb2) provided on the other side of the central CC. The one-side compression section Ea1 has curved sections Fa in the order of a first curved section Fa1, a second curved section Fa2, and a third curved section Fa3, extending from the ventral side to the dorsal side in the longitudinal direction, and the other-side compression section Eb1 has curved sections Fb in the order of a first curved section Fb1, a second curved section Fb2, and a third curved section Fb3, extending from the ventral side to the dorsal side in the longitudinal direction.

[0077] As shown in Figure 6, in the one-sided compression section Ea1, the outermost lateral end of the first curved section Fa1 is positioned ventrally to the outermost lateral end of the second curved section Fa2. In other words, the first curved section Fa1 and the second curved section Fa2 are positioned at different locations in the longitudinal direction. By having a compression section E comprising the first curved section Fa1 and the second curved section Fa2 in the absorbent core 11a, the feel against the wearer's skin when the diaper 1 comes into contact with it from the outside in the lateral direction is improved, while the rigidity of the portion between the outer lateral end of the first curved section Fa1 and the outer lateral end of the second curved section Fa2, which are positioned at different locations in the longitudinal direction, can be increased. This increases the rigidity of the absorbent core 11a, reduces deformation of the absorbent core 11a when worn, and makes it easier to maintain the shape of the absorbent core 11a.

[0078] Furthermore, as shown in Figure 6, it is preferable that the first curved portion Fa1 and the second curved portion Fa2 constitute at least a part of the one-sided compression portion Ea1, and that the one-sided compression portion Ea1 is continuous in the longitudinal direction. Specifically, the one-sided compression portion Ea1 is arranged in the order of the first curved portion Fa1, the portion that curves inward in the transverse direction, the second curved portion Fa2, the portion that curves inward in the transverse direction, and the third curved portion Fa3, from the ventral side to the dorsal side in the longitudinal direction, and these are provided continuously. For example, if the one-sided compression portion Ea1 is configured by discontinuously arranging multiple compression portions in the longitudinal direction, the portions where the compression portions are interrupted have low rigidity, and there is a risk that the absorbent core 11a may bend along the transverse direction or tear at the portions where the compression portions are interrupted. In contrast, the one-sided compression section Ea1, which includes the first curved section Fa1 and the second curved section Fa2 as part of it, is continuous in the longitudinal direction. This reduces the risk of the absorbent core 11a bending along the lateral direction in the region of the absorbent core 11a that overlaps with the one-sided compression section Ea1 in the longitudinal direction. Furthermore, it reduces the risk of the absorbent core 11a tearing in the region of the absorbent core 11a that overlaps with the one-sided compression section Ea1 in the longitudinal direction.

[0079] In the diaper 1 of this embodiment, the compression section Ea on one side and the compression section Eb1 on the other side have similar configurations, and the compression section Ea (Ea1, Ea2) on one side and the compression section Eb (Eb1, Eb2) on the other side are symmetrical with respect to the lateral center CC.

[0080] In the diaper 1 of this embodiment, the one-sided compression section Ea1 comprises a plurality of curved sections Fa1, Fa2, Fa3 that curve outward in the lateral direction, and a section that curves inward in the lateral direction between each of the curved sections Fa1, Fa2, Fa3. The curved sections Fa1, Fa2, Fa3 and the section that curves inward in the lateral direction are continuous, forming a single one-sided compression section Ea1. In this case, the curved sections Fa1, Fa2, Fa3 refer to the portion on one side in the lateral direction from the line connecting the inflection points of the one-sided compression section Ea1, and the section that curves inward in the lateral direction is the portion on the other side in the lateral direction from the line connecting the inflection points of the one-sided compression section Ea1.

[0081] Furthermore, as described above, the pair of compression sections E are provided with a one-sided compression section Ea on one side of the lateral center CC of the absorbent core 11a, and the one-sided compression section Ea has an inner compression section Ea1 and an outer compression section Ea2 located laterally outward from the inner compression section Ea1. Similarly, the absorbent core 11a is provided with a other-sided compression section Eb on the other side of the lateral center C-C, and the other-sided compression section Eb has an inner compression section Eb1 and an outer compression section Eb2 located laterally outward from the inner compression section Eb1. By providing multiple compression sections in the lateral direction, such as the inner compression section Ea1 and the outer compression section Ea2, the rigidity of the absorbent core 11a in the lateral direction can be increased, thereby reducing the risk of the absorbent core 11a losing its shape and making it easier to maintain the shape of the absorbent core 11a.

[0082] Further, it is preferable that the maximum value Wes of the lateral distance between the inner compressed portion Ea1 and the outer compressed portion Ea2 is shorter than the lateral length Wew from one end to the other end in the lateral direction of the inner compressed portion Ea1 (Wes < Eew). According to this configuration, compared to a case where the maximum value Wes of the lateral distance between the inner compressed portion Ea1 and the outer compressed portion Ea2 is longer than the lateral length Wew from one end to the other end in the lateral direction of the inner compressed portion Ea1, the rigidity of the region between the inner compressed portion Ea1 and the outer compressed portion Ea2 in the lateral direction can be increased. Therefore, the rigidity on one side in the lateral direction of the absorbent core 11a can be increased, making it easier to maintain the shape of the absorbent core 11a on one side in the lateral direction.

[0083] Regarding the pair of compressed portions E provided with the curved portions Fa1 and Fb1, it is preferable that the pair of compressed portions E are provided on the ventral side of the vertical center line CL of the diaper 1. The compressed portion E is a portion having high rigidity in the absorbent core 11a. Therefore, by providing the compressed portion E on the ventral side of the center line CL, it is possible to reduce discomfort felt by the wearer caused by the compressed portion E coming into contact with the wearer's buttocks when the wearer is in a sitting posture or a lying posture.

[0084] Furthermore, it is more preferable that this pair of compression sections E are provided in the longitudinal direction on at least a portion of the area corresponding to the urinary opening when the absorbent core 11a is worn. The area corresponding to the urinary opening of the absorbent core 11a is the area of ​​the absorbent core 11a that, when worn, faces the position of the urinary opening of the wearer. For example, in the case of diaper 1 for adult males, the urinary opening is located approximately 130 mm ventrally from the central CL in the longitudinal direction, and in the case of diaper 1 for adult females, the urinary opening is located approximately 50 mm ventrally from the central CL in the longitudinal direction. Generally, the area corresponding to the urinary opening and the urinary opening position in disposable diapers and absorbent pads differ depending on whether the wearer is an adult or an infant, and also whether the wearer is male or female. Therefore, the area corresponding to the urinary opening may be set to include the urinary opening positions of both men and women, and in the case of diapers exclusively for men or exclusively for women, it may be set to include the urinary opening position of only one of them. While the absorbent core 11a is prone to losing its shape when worn due to urine absorption, the provision of a compression section E in at least a portion of the vertical urinary opening area of ​​the absorbent core 11a reduces the risk of the absorbent core 11a losing its shape even when urine is absorbed, making it easier to maintain its shape.

[0085] Regarding the one-side compressed portion Ea and the other-side compressed portion Eb, it is preferable that the lateral length Wf from the other-side end of the one-side compressed portion Ea to the one-side end of the other-side compressed portion Eb is longer than the lateral length We from the one-side end to the other-side end of the one-side compressed portion Ea (We<Wf). In the lateral direction, the region from the other-side end of the one-side compressed portion Ea to the one-side end of the other-side compressed portion Eb has lower rigidity than the compressed portion E, and therefore becomes a region that cushions a force applied to the absorbent core 11a when the force is received. Accordingly, by making the lateral length Wf from the other-side end of the one-side compressed portion Ea to the one-side end of the other-side compressed portion Eb longer than the lateral length We from the one-side end to the other-side end of the one-side compressed portion Ea, compared to the case where the lateral length Wf from the other-side end of the one-side compressed portion Ea to the one-side end of the other-side compressed portion Eb is shorter than the lateral length We from the one-side end to the other-side end of the one-side compressed portion Ea, the region can serve as a buffer region against the force applied to the absorbent core 11a. Therefore, while facilitating flexible deformation of the absorbent core 11a, it becomes easy to provide a wide soft region in the absorbent core 11a, so that the feel against the skin during wear can be improved.

[0086] Furthermore, in an absorbent core 11a including one-side compressed portion Ea and the other-side compressed portion Eb, it is preferable that the lateral length Wf from the other-side end of the one-side compressed portion Ea to the one-side end of the other-side compressed portion Eb is longer than the lateral length Wne from the one-side side end of the narrowest portion 11N, where the lateral length of the absorbent core 11a is the shortest, to the one-side end of the one-side compressed portion Ea (Wne<Wf). As the pair of compressed portions E are provided more outward in the lateral direction of the absorbent core 11a, the risk of shape collapse of the absorbent core 11a starting from the lateral outer side can be reduced. Therefore, by making the lateral length Wf from the other-side end of the one-side compressed portion Ea to the one-side end of the other-side compressed portion Eb longer than the lateral length Wne from the one-side side end of the absorbent core 11a at the narrowest portion 11N to the one-side end of the one-side compressed portion Ea, the one-side compressed portion Ea can be provided on the lateral outer side (one side) of the absorbent core 11a compared to the case where the length Wf is shorter than the length Wne, so the risk of shape collapse of the absorbent core 11a starting from the lateral outer side (one side) can be reduced.

[0087] In the one-side compressed portion Ea and the other-side compressed portion Eb of the absorbent core 11a, it is preferable that the longitudinal length Le from the ventral end to the dorsal end of the one-side compressed portion Ea is longer than the lateral length Wf from the other-side end of the one-side compressed portion Ea to the one-side end of the other-side compressed portion Eb (Wf<Le). The longer the longitudinal length of the one-side compressed portion Ea is, the easier it becomes to reduce shape deformation over a wide longitudinal range of the absorbent core 11a. Therefore, by making the longitudinal length Le from the ventral end to the dorsal end of the one-side compressed portion Ea longer than the lateral length Wf from the other-side end of the one-side compressed portion Ea to the one-side end of the other-side compressed portion Eb, the one-side compressed portion Ea in the absorbent core 11a can be configured to be longer in the longitudinal direction compared to the case where the length Le is shorter than the length Wf. Accordingly, over a wide longitudinal range of the absorbent core 11a, the risk of shape deformation of the absorbent core 11a can be reduced, making it easier to maintain the shape of the absorbent core 11a.

[0088] Furthermore, as shown in Figure 2, in a diaper 1 having a pair of waist sections 30 and 40, when viewing the diaper 1 in its stretched and unfolded state in the thickness direction, it is preferable that the area of ​​the region R where the ventral waist section 30 and the absorbent core 11a overlap, and the area of ​​the portion where the ventral waist section 30 and the pair of compression sections E do not overlap, is larger than the area of ​​the portion where the ventral waist section 30 and the pair of compression sections E overlap. In Figure 2, the region R where the ventral waist section 30 and the absorbent core 11a overlap is shown by a diagonally downward-sloping shaded area in the thickness direction. This area can be compared by well-known methods such as visual inspection. Since the compression section E is a highly rigid part, the smaller the area where the ventral waist section 30 and the compression section E overlap in the thickness direction, the less discomfort is caused to the wearer when wearing it, and the better the feel against the skin. Therefore, when viewed in the thickness direction, by making the area of ​​the region R in which the ventral waist portion 30 and the absorbent core 11a overlap, and the area of ​​the portion where the ventral waist portion 30 and the pair of compression portions E do not overlap, larger than the area of ​​the portion where the ventral waist portion 30 and the pair of compression portions E do overlap, the risk of discomfort caused to the wearer's skin by the pair of compression portions E when worn can be reduced compared to when the area of ​​the portion where the ventral waist portion 30 and the pair of compression portions E do not overlap is smaller than the area of ​​the portion where the ventral waist portion 30 and the pair of compression portions E do overlap.

[0089] Regarding diaper 1, it is preferable that the length (thickness) of the absorbent core 11a in the thickness direction at the compression area E is 15% or more and 40% or less of the length (thickness) of the central part of the absorbent core 11a in the lateral direction. This reduces the risk of discomfort to the wearer's skin due to the compression area E becoming excessively hard compared to when the length (thickness) of the absorbent core 11a in the thickness direction at the compression area E is shorter than 15% of the length (thickness) of the central part of the absorbent core 11a in the lateral direction. Furthermore, this improves the rigidity of the absorbent core 11a and makes it easier to reduce deformation of the absorbent core 11a compared to when the length (thickness) of the absorbent core 11a in the thickness direction at the compression area E is longer than 40% of the length (thickness) of the central part of the absorbent core 11a in the lateral direction.

[0090] Furthermore, as described above, the diaper 1 has an absorbent body 10 equipped with an absorbent core 11a, and the absorbent body 10 has a pair of leak-proof wall sections 50 at both ends in the lateral direction, each equipped with leak-proof elastic wall members 51 and 52 oriented in the vertical direction. These leak-proof wall sections 50 rise up toward the skin side due to the contraction of the leak-proof elastic wall members 51 and 52, forming a wall that reduces the risk of excrement leaking out to the outside of the absorbent body 10 in the lateral direction.

[0091] When the diaper 1 has a leak-proof wall portion 50, it is preferable that a pair of compression portions E be provided in the lateral direction, inside the leak-proof wall portion 50, as shown in Figure 4. The pair of compression portions E reduce the risk of deformation of the absorbent core 11a and make it easier to maintain the shape of the absorbent core 11a, thereby making it easier to absorb excrement. In particular, when the pair of compression portions E are provided ventrally from the vertical CL, the absorbent core 11a can more easily receive a large amount of liquid from urine in a surface area, making it easier to absorb excrement. Furthermore, since the leak-proof wall portion 50 is a portion that rises toward the skin side, if a highly rigid compression portion E is not provided in a position that overlaps with the leak-proof wall portion 50 when viewed in the thickness direction, the compression portion E will come closer to the wearer's skin as the leak-proof wall portion 50 rises, reducing the risk of reducing skin contact with the wearer or causing discomfort to the wearer.

[0092] In the case where the absorbent body 10 has a pair of leak-proof wall sections 50 at both ends in the lateral direction, each of the pair of leak-proof wall sections 50 has a skin-side leak-proof wall section 50a located closest to the skin, and a non-skin-side leak-proof wall section 50b located further away from the skin than the skin-side leak-proof wall section 50a, as shown in Figures 5A to 5C. It is preferable that the inner end of the leak-proof wall section 50 in the lateral direction has a pinch fixing section (first fixing section) 55 to which at least a portion of the skin-side leak-proof wall section 50a and the non-skin-side leak-proof wall section 50b facing each other are fixed. In this embodiment, as shown in Figures 4 and 5B, the pinch fixing section 55 is provided with one rectangular adhesive area each on the ventral and dorsal sides of the central CL in the longitudinal direction, joining and fixing the skin-side leak-proof wall section 50a and the non-skin-side leak-proof wall section 50b. By providing the gripping and fixing part 55, it becomes easier to maintain the folded shape of the outer sheet 15 of the leak-proof wall part 50, and it becomes easier to maintain the two-layer structure of the skin-side leak-proof wall part 50a and the non-skin-side leak-proof wall part 50b in the leak-proof wall part 50.

[0093] Thus, when there is a pinch fixing portion 55 that joins and fixes the skin-side leak-proof wall portion 50a and the non-skin-side leak-proof wall portion 50b, it is preferable that the pair of compression portions E have a portion that overlaps with the pinch fixing portion 55 in the vertical direction. The portion where the pinch fixing portion 55 is provided is a portion that easily adheres firmly to the wearer's skin when worn, and is a portion where force is applied to the absorbent core 11a through the leak-proof wall portion 50, causing deformation that crushes the absorbent core 11a. By having the pair of compression portions E overlapping with the pinch fixing portion 55 in the vertical direction, the rigidity of the compression portions E reduces deformation of the absorbent core 11a and makes it easier to maintain the shape of the absorbent core 11a.

[0094] Furthermore, in cases where the absorbent body 10 has a pair of leak-proof wall sections 50 at both ends in the lateral direction, each section has a pair of leak-proof wall elastic members 51 and 52 oriented in the vertical direction, it is preferable that, as shown in Figures 5A to 5C, each section of leak-proof wall section 50 has an intermittent fixing section (second fixing section) 54 at its inner end in the lateral direction, which fixes at least a portion of the non-skin side of the leak-proof wall section 50 to the skin side of the top sheet 12. As shown in Figures 4 and 5A, the intermittent fixing section 54 in this embodiment is provided in the central part in the vertical direction, and uses a rectangular adhesive to join and fix the non-skin side of the non-skin side leak-proof wall section 50b to the skin side of the top sheet 12. By providing the intermittent fixing section 54, it becomes easier to fix the leak-proof wall section 50 to the top sheet 12 while maintaining the shape of the leak-proof wall section 50, thus making it easier to bring the leak-proof wall section 50 into surface contact with the wearer's skin. In this embodiment, the leak-proof wall portion 50 has a two-layer structure comprising a skin-side leak-proof wall portion 50a and a non-skin-side leak-proof wall portion 50b, but it is not limited to this. The leak-proof wall portion 50 may also have a single-layer structure consisting only of a skin-side leak-proof wall portion 50a (non-skin-side leak-proof wall portion 50b).

[0095] When the diaper 1 is equipped with an intermittent fixing section 54 that joins the leak-proof wall section 50 and the top sheet 12, it is preferable that in the vertical direction, a pair of compression sections E have a portion that overlaps with the intermittent fixing section 54. The portion where the intermittent fixing section 54 is provided is a portion that tends to adhere firmly to the wearer's skin when worn, and force is applied to the absorbent core 11a through the leak-proof wall section 50, making it easy for deformation that crushes the absorbent core 11a to occur. Therefore, by having a portion that overlaps with the intermittent fixing section 54 in the vertical direction, the rigidity of the compression sections E reduces deformation of the absorbent core 11a and makes it easier to maintain the shape of the absorbent core 11a.

[0096] In this embodiment, the diaper 1 has an abdominal waist portion 30 equipped with an abdominal waist elastic member 35 that is expandable and contractible in the lateral direction, and in the thickness direction, there is a portion where the pair of compression portions E do not overlap with the waist elastic member 35. As a result, in the thickness direction, the portion where the pair of compression portions E and the waist elastic member 35 do not overlap reduces the risk of the highly rigid pair of compression portions E being pressed against the wearer's skin by the contraction force of the abdominal waist elastic member 35, thereby improving the feel against the wearer's skin.

[0097] On the other hand, the diaper 1 has a portion of the ventral waist area 30 where, when viewed in the thickness direction, the pair of compression sections E do not overlap with the waist elastic member 35, and also a portion where the pair of compression sections overlap with the waist elastic member 35. In such a case, when viewed in the thickness direction, it is preferable that the elastic modulus of the waist elastic member 35 that overlaps with the pair of compression sections E is lower than the elastic modulus of the waist elastic member 35 that does not overlap with the pair of compression sections E. In the diaper 1, the elastic modulus of the ventral waist elastic member 35 at the lower end is lower than the elastic modulus of the ventral waist elastic member 35 at the upper end of the ventral waist area 30. Therefore, even when the pair of compression sections E overlap with the waist elastic member 35 when viewed in the thickness direction, the contractile force of the waist elastic member 35 makes it easier to bring the absorbent core 11a into contact with the wearer's skin, while reducing the risk of adverse effects on the wearer's skin at the overlapping portion between the compression sections E and the waist elastic member 35.

[0098] Furthermore, in order to improve the feel against the wearer's skin, it is more preferable that, when the abdominal waist portion 30 is viewed in the thickness direction, the area of ​​the portion where the pair of compression portions E and the waist elastic member 35 do not overlap is larger than the area of ​​the portion where the pair of compression portions E and the waist elastic member 35 overlap.

[0099] ===Other Examples=== The embodiments of the present invention have been described above, but these embodiments are intended to facilitate understanding of the present invention and are not intended to limit its interpretation. Furthermore, the present invention can be modified or improved without departing from its spirit, and it goes without saying that the present invention includes equivalents thereof.

[0100] In the above-described embodiment, a so-called three-piece type pant-style diaper having an absorbent body 10, an abdominal waist portion 30, and a dorsal waist portion 40 was exemplified, but the invention is not limited thereto. For example, it may be a so-called two-piece type pant-style diaper having an outer body in which the abdominal waist portion and the dorsal waist portion are formed as a continuous, integral part, and an absorbent body, or it may be a tape-type disposable diaper.

[0101] Furthermore, although the above-described embodiment described a disposable diaper 1, the configuration of the diaper 1 can also be applied to an absorbent pad for disposable diapers used together with the disposable diaper. For example, in the case of an absorbent pad for disposable diapers, the absorbent body 10 in the diaper 1 described above may be used as the absorbent pad, and the configuration of the present invention may be applied.

[0102] In the above-described embodiment, the pair of compression sections E have a portion that overlaps with the ventral waist elastic member 35 of the ventral waist section 30 when viewed in the thickness direction, but the embodiment is not limited to this. In cases such as diaper 1, where the ventral waist section 30 is equipped with a ventral waist elastic member 35 that can expand and contract in the lateral direction, the pair of compression sections E may not have a portion that overlaps with the waist elastic member 35 when viewed in the thickness direction. By doing so, the risk of the highly rigid pair of compression sections E being pressed against the wearer's skin by the contraction force of the ventral waist elastic member 35 and reducing the feel against the wearer's skin can be reduced.

[0103] In the above-described embodiment, the one-sided compression section Ea1 and the other-sided compression section Eb1 each comprise a plurality of curved sections Fa1, Fa2, Fa3 and curved sections Fb1, Fb2, Fb3, but the embodiment is not limited to this. For example, the one-sided compression section Ea1 and the other-sided compression section Eb1 may each consist of only one curved section Fa, Fb, as the compression section E.

[0104] Furthermore, in the above-described embodiment, the one-sided compression section Ea1 is arranged in the order of a first curved section Fa1, a section that curves inward in the transverse direction, a second curved section Fa2, a section that curves inward in the transverse direction, and a third curved section Fa3, from the ventral side in the longitudinal direction to the dorsal side, forming a continuous wave-like structure, but it is not limited to this. For example, the one-sided compression section Ea1 may not have a section that curves inward in the transverse direction and may consist only of a curved section Fa, or it may have a curved section Fa and a straight compression section along the longitudinal direction. Moreover, the one-sided compression section Ea1 does not necessarily have to be continuous and may have discontinuous sections.

[0105] In the above-described embodiment, the one-sided compression section Ea and the other-sided compression section Eb are symmetrical with respect to the lateral center CC, but the embodiment is not limited to this. For example, the one-sided compression section Ea and the other-sided compression section Eb may have different shapes and sizes. For example, the curved section Fa1 of the one-sided compression section Ea1 and the curved section Fb1 of the other-sided compression section Eb1 may be located at different positions in the vertical direction.

[0106] In the above-described embodiment, the one-sided compression section Ea is provided with two parts: an inner compression section Ea1 and an outer compression section Ea2, but it is not limited to this. The one-sided compression section Ea may consist only of the inner compression section Ea1, or it may have one or more compression sections on the lateral outer side in addition to the inner compression section Ea1 and the outer compression section Ea2. [Explanation of symbols]

[0107] 1. Diapers (pants-type absorbent items, disposable diapers), 10 Absorbent body, 11 absorbent material, 11a Absorbent core, 11b Core wrap sheet, 12 Top sheet (skin-facing sheet), 14 back seats, 15 Exterior seats, 16 Non-skin side elastic member (elastic member), 20 Side joint (joint), 30 ventral girth area, 30sw lateral area, 31. Skin-facing sheet, 32 non-skin side sheet, 35. Ventral circumferential elastic member, 36 skin-facing sheets, 40 Dorsal torso area, 40b Buttock area, 40sw Side area, 41. Skin-facing sheet, 42 Non-skin side sheet, 45. Elastic member around the back of the torso, 46 Skin-facing sheets, 47 Curved elastic member, 47a End elastic part, 47b Inclined elastic part, 50 Leakage prevention wall part, 50a Skin side leakage prevention wall part, 50b Non-skin side leakage prevention wall part, 51 Leak-proof wall elastic member, 52 Leak-proof wall elastic member, 53 End fixing part, 54 Intermittent fixing part (second fixing part), 55. Pinch fixing part (first fixing part), BH (Body opening), LH (Legging opening), E Compression section, Ea One-sided compression section, Eb Other-sided compression section, F curved section, Fa1 curved section, first curved section, Fa2 curved section, second curved section, Fa3 curved section, third curved section, S Deformation induction section

Claims

1. It has intersecting longitudinal, transverse, and thickness directions, An absorbent pad or disposable diaper having an absorbent core that absorbs liquids, The system includes a top sheet positioned closer to the skin than the absorbent material, The aforementioned top sheet is not a sheet having an uneven surface without embossing and a hollow portion on the skin-facing side and the absorbent-facing side, In the unfolded and extended state, The absorbent core is provided with a pair of compression sections in the crotch area when worn, along the longitudinal direction. Each of the pair of compression sections has a curved section that curves outward in the lateral direction, The pair of compression sections comprises a one-side compression section provided on one side of the lateral center of the absorbent core, and a other-side compression section provided on the other side of the lateral center of the absorbent core. From the length in the lateral direction from one end of the one-sided compression section to the other end in the lateral direction, An absorbent pad for disposable diapers or a disposable diaper, characterized in that the lateral length from the other end of the one-sided compression portion to the one-sided end of the other-sided compression portion is longer.

2. An absorbent pad for a disposable diaper or a disposable diaper as described in claim 1, An absorbent pad for a disposable diaper or a disposable diaper, characterized in that a pair of the compression portions are provided on the ventral side of the longitudinal center of the disposable diaper or the absorbent pad for the disposable diaper.

3. An absorbent pad for a disposable diaper or a disposable diaper as described in claim 2, An absorbent pad for a disposable diaper or a disposable diaper, characterized in that, in the longitudinal direction, a pair of compression portions are provided in at least a portion of the area corresponding to the urinary opening when the absorbent core is worn.

4. An absorbent pad for disposable diapers or a disposable diaper according to any one of claims 1 to 3, The pair of compression sections comprises a one-side compression section provided on one side of the lateral center of the absorbent core, and a other-side compression section provided on the other side of the lateral center of the absorbent core. The aforementioned one-sided compression section comprises a first curved section and a second curved section. An absorbent pad for disposable diapers or a disposable diaper, characterized in that the outermost lateral end of the first curved portion is located ventrally closer than the outermost lateral end of the second curved portion.

5. An absorbent pad for a disposable diaper or a disposable diaper as described in claim 4, The first curved portion and the second curved portion constitute at least a part of the one-sided compression portion, The absorbent pad for disposable diapers or disposable diaper is characterized in that the one-sided compression portion is continuous in the longitudinal direction.

6. Having longitudinal, transverse, and thickness directions that intersect with each other, An absorbent pad or disposable diaper having an absorbent core that absorbs liquids, The system includes a top sheet positioned closer to the skin than the absorbent material, The aforementioned top sheet is not a sheet having an uneven surface without embossing and a hollow portion on the skin-facing side and the absorbent-facing side, In the unfolded and extended state, The absorbent core is provided with a pair of compression sections in the crotch area when worn, along the longitudinal direction. Each of the pair of compression sections has a curved section that curves outward in the lateral direction, The pair of compression sections comprises a one-side compression section provided on one side of the lateral center of the absorbent core, and a other-side compression section provided on the other side of the lateral center of the absorbent core. From the lateral length of the absorbent core at its narrowest point, which has the shortest lateral length, to the lateral end of the one-sided compression portion, An absorbent pad for disposable diapers or a disposable diaper, characterized in that the lateral length from the other end of the one-sided compression portion to the one-sided end of the other-sided compression portion is longer.

7. Having longitudinal, transverse, and thickness directions that intersect with each other, An absorbent pad or disposable diaper having an absorbent core that absorbs liquids, The system includes a top sheet positioned closer to the skin than the absorbent material, The aforementioned top sheet is not a sheet having an uneven surface without embossing and a hollow portion on the skin-facing side and the absorbent-facing side, In the unfolded and extended state, The absorbent core is provided with a pair of compression sections in the crotch area when worn, along the longitudinal direction. Each of the pair of compression sections has a curved section that curves outward in the lateral direction, The pair of compression sections comprises a one-side compression section provided on one side of the lateral center of the absorbent core, and a other-side compression section provided on the other side of the lateral center of the absorbent core. An absorbent pad for disposable diapers or a disposable diaper, characterized in that the length in the vertical direction from the ventral end to the dorsal end of the one-sided compression portion is longer than the length in the horizontal direction from one end to the other end of the one-sided compression portion.

8. An absorbent pad for disposable diapers or a disposable diaper according to any one of claims 1 to 3, A disposable diaper having a pair of waist sections, Viewed in the thickness direction, An absorbent pad for disposable diapers or a disposable diaper, characterized in that, in the region where the waist portion and the absorbent core overlap, the area of ​​the portion where the waist portion and the pair of compression portions do not overlap is larger than the area of ​​the portion where the waist portion and the pair of compression portions overlap.

9. Having longitudinal, transverse, and thickness directions that intersect with each other, An absorbent pad or disposable diaper having an absorbent core that absorbs liquids, The system includes a top sheet positioned closer to the skin than the absorbent material, The aforementioned top sheet is not a sheet having an uneven surface without embossing and a hollow portion on the skin-facing side and the absorbent-facing side, In the unfolded and extended state, The absorbent core is provided with a pair of compression sections in the crotch area when worn, along the longitudinal direction. Each of the pair of compression sections has a curved section that curves outward in the lateral direction, A disposable diaper having a pair of waist sections, In at least one of the pair of torso portions, Multiple elastic members that can expand and contract in the lateral direction are provided around the torso, Viewed in the thickness direction, the pair of compression portions have a portion that does not overlap with the elastic member around the body and a portion that overlaps with the elastic member around the body. An absorbent pad for disposable diapers or a disposable diaper, characterized in that the elastic modulus of the waist elastic member that overlaps with the pair of compression portions when viewed in the thickness direction is lower than the elastic modulus of the waist elastic member that does not overlap with the pair of compression portions when viewed in the thickness direction.

10. An absorbent pad for disposable diapers or a disposable diaper according to any one of claims 1 to 3, The pair of compression sections comprises a one-side compression section provided on one side of the lateral center of the absorbent core, and a other-side compression section provided on the other side of the lateral center of the absorbent core. The absorbent pad for disposable diapers or disposable diaper is characterized in that the one-sided compression section comprises an inner compression section and an outer compression section located laterally to the inner compression section.

11. Having longitudinal, transverse, and thickness directions that intersect with each other, An absorbent pad or disposable diaper having an absorbent core that absorbs liquids, The system includes a top sheet positioned closer to the skin than the absorbent material, The aforementioned top sheet is not a sheet having an uneven surface without embossing and a hollow portion on the skin-facing side and the absorbent-facing side, In the unfolded and extended state, The absorbent core is provided with a pair of compression sections in the crotch area when worn, along the longitudinal direction. Each of the pair of compression sections has a curved section that curves outward in the lateral direction, The pair of compression sections comprises a one-side compression section provided on one side of the lateral center of the absorbent core, and a other-side compression section provided on the other side of the lateral center of the absorbent core. The aforementioned one-sided compression section comprises an inner compression section and an outer compression section located laterally outward from the inner compression section. An absorbent pad for disposable diapers or a disposable diaper, characterized in that the maximum value of the lateral distance between the inner compression portion and the outer compression portion is shorter than the lateral length from one lateral end of the inner compression portion to the other lateral end.

12. An absorbent pad for disposable diapers or a disposable diaper according to any one of claims 1 to 3, An absorbent pad for disposable diapers or a disposable diaper, characterized in that the length of the absorbent core in the thickness direction in the compressed portion is 15% or more and 40% or less of the length of the central part of the absorbent core in the thickness direction in the transverse direction.

13. It has intersecting longitudinal, transverse, and thickness directions, An absorbent pad or disposable diaper for disposable diapers, comprising an absorbent core capable of absorbing liquid, In the unfolded and extended state, The absorbent core is provided with a pair of compression sections in the crotch area when worn, along the longitudinal direction. Each of the pair of compression sections has a curved section that curves outward in the lateral direction, Having an absorbent body equipped with the aforementioned absorbent core, The absorbent body has a pair of leak-proof wall sections at both ends in the lateral direction, each equipped with a leak-proof wall elastic member aligned with the vertical direction. The aforementioned leak-proof wall portion comprises a skin-side leak-proof wall portion located closest to the skin, and a non-skin-side leak-proof wall portion located further away from the skin-side leak-proof wall portion. The inner end of the aforementioned leak-proof wall portion in the lateral direction has a first fixing portion to which at least a part of the skin-side leak-proof wall portion and the non-skin-side leak-proof wall portion facing each other are joined and fixed. An absorbent pad for disposable diapers or a disposable diaper, characterized in that, in the longitudinal direction, the pair of compression portions have a portion that overlaps with the first fixing portion.

14. It has intersecting longitudinal, transverse, and thickness directions, An absorbent pad or disposable diaper for disposable diapers, comprising an absorbent core capable of absorbing liquid, In the unfolded and extended state, The absorbent core is provided with a pair of compression sections in the crotch area when worn, along the longitudinal direction. Each of the pair of compression sections has a curved section that curves outward in the lateral direction, The absorbent body comprises the absorbent core and the skin-side sheet, The absorbent body has a pair of leak-proof wall sections at both ends in the lateral direction, each equipped with a leak-proof wall elastic member aligned with the vertical direction. It has a second fixing portion to which at least a portion of the non-skin side of the leak-proof wall portion and the skin side of the skin-side sheet, which are opposite each other, are joined and fixed. An absorbent pad for disposable diapers or a disposable diaper, characterized in that, in the longitudinal direction, the pair of compression portions have a portion that overlaps with the second fixing portion.

15. An absorbent pad for disposable diapers or a disposable diaper according to any one of claims 1 to 3, Having an absorbent body equipped with the aforementioned absorbent core, The absorbent body has leak-proof wall portions at both ends in the lateral direction, each portion having a leak-proof wall elastic member aligned with the vertical direction. An absorbent pad for disposable diapers or a disposable diaper, characterized in that a pair of compression portions are provided inward from the leak-proof wall portion in the lateral direction.

Citation Information

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