Absorbent article

The absorbent article design with pad holding sheets and cuts secures the absorbent pad, addressing displacement issues and improving absorption efficiency and replacement frequency.

JP2025107935APending Publication Date: 2025-07-22OJI HLDG CORP
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Patent Information

Application Number
JP2024001502
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-01-09
Publication Date
2025-07-22

AI Technical Summary

Technical Problem

The use of disposable diapers in combination with absorbent pads often results in the displacement of the absorbent pad, leading to inadequate liquid absorption and increased replacement frequency.

Method used

An absorbent article design featuring an interior body covering the crotch region and exterior body with pad holding sheets that include cuts for inserting an absorbent pad, ensuring secure placement and minimizing displacement.

Benefits of technology

The design effectively suppresses absorbent pad displacement, enhancing liquid absorption efficiency and reducing the frequency of diaper replacements.

✦ Generated by Eureka AI based on patent content.

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Abstract

To suppress positional deviation of an absorbent pad when using both diapers and the absorbent pad.SOLUTION: An absorbent article includes: an interior body including an absorber arranged so as to cover a crotch area positioned in the crotch of a wearer in a worn state; an exterior body arranged so as to cover at least a front body area positioned around the waist on the abdominal side of the wearer, and a rear body area positioned around the waist on the back part side of the wearer in a worn state, to which at least the two ends in the longitudinal direction of the interior body are joined; and a pad holding sheet whose end part in the width direction is joined to the skin face side of the exterior body, extending in the width direction on skin face sides of the exterior body and the interior body, and including a slit through which an absorbent pad extending in the width direction and used together can be inserted.SELECTED DRAWING: Figure 1
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Description

Technical Field

[0001] The present invention relates to absorbent articles.

Background Art

[0002] Disposable diapers, which are absorbent articles, are known (Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] A disposable diaper and an absorbent pad are used in combination, and by allowing the absorbent pad to absorb the discharged liquid, the replacement timing of the disposable diaper is delayed. When a disposable diaper and an absorbent pad are used in combination, the position of the absorbent pad may shift from the fixed position. If the absorbent pad shifts from the fixed position, the absorbent pad cannot appropriately absorb the discharged liquid, resulting in a problem that the replacement frequency of the disposable diaper increases.

[0005] An object of the present invention is to provide an absorbent article that suppresses displacement of the absorbent pad.

Means for Solving the Problems

[0006] An absorbent article according to one aspect of the present invention includes an interior body containing an absorber, which is disposed so as to cover the crotch region located at the wearer's crotch in the worn state, and a front body region located at least around the wearer's abdominal torso and a back body region located around the wearer's back torso in the worn state. An exterior body disposed to cover the body, with at least both longitudinal ends of the interior body joined thereto, and a pad holding sheet extending in the width direction on the skin side of the exterior body and the interior body, having a cutout at the width direction end joined to the skin side of the exterior body and into which an absorbent pad to be used in combination and extending in the width direction can be inserted.

Advantages of the Invention

[0007] According to the present invention, displacement of the absorbent pad can be suppressed.

Brief Description of the Drawings

[0008]

Figure 1

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MODE FOR CARRYING OUT THE INVENTION

[0009] Hereinafter, the diaper according to the embodiment of the present invention will be described with reference to the drawings. Note that the configurations of the following embodiments are examples, and the present invention is not limited to the configurations of these embodiments.

[0010] <First Embodiment> FIG. 1 is a perspective view of a pant-type disposable diaper for adults according to an embodiment (hereinafter simply referred to as "diaper"). In the diaper, the longitudinal direction is defined as the direction connecting the front body portion disposed opposite the wearer's abdomen and the back body portion disposed opposite the back. Between these front body portions (one side in the longitudinal direction) and the back body portion (the other side in the longitudinal direction) (at the center in the longitudinal direction), there is a crotch portion disposed under the wearer's crotch (opposite the groin). Also, in the state where the diaper is worn by the wearer, the side facing the wearer's skin is defined as the skin side, and the side opposite the skin side is defined as the non-skin side. Further, the direction connecting the skin side and the non-skin side is defined as the thickness direction, and the direction orthogonal to both the longitudinal direction and the thickness direction is defined as the width direction. In addition, viewing from the thickness direction is defined as a plan view. The diaper 1 has a length along the longitudinal direction and a width along the width direction orthogonal to the longitudinal direction, and is worn under the wearer's crotch. Also, the terms related to the directions used in this application are meant to be the directions that coincide with the front, back, left, and right of the wearer in the state where the diaper 1 is worn by the wearer. For example, when referring to the left-right direction in this application, it means the direction that coincides with the left and right of the wearer in the state where the diaper 1 is worn by the wearer.

[0011] In the present embodiment, as an example of an absorbent article, a pant-type disposable diaper having a tubular structure with a body opening into which the wearer's abdominal circumference fits and a pair of left and right leg openings through which the wearer's left and right lower limbs are inserted is exemplified. However, the "absorbent article" referred to in this application is not limited to adult pant-type disposable diapers. The "absorbent article" referred to in this application includes pant-type disposable diapers for children.

[0012] The diaper 1 has a crotch region 1B which is a part corresponding to the crotch region (thigh area) covering the wearer's crotch in the worn state, a front body region 1F which is a part corresponding to the front body around the wearer's torso and covers the wearer's abdominal side, and a back body region 1R which is a part corresponding to the back body around the wearer's torso and covers the wearer's back side. Here, the front body region 1F is located on the front side of the crotch region 1B, and the back body region 1R is located on the back side of the crotch region 1B. Since the diaper 1 in the present embodiment is a pants-type disposable diaper, the left edge of the front body region 1F and the left edge of the back body region 1R are joined to each other, and the right edge of the front body region 1F and the right edge of the back body region 1R are joined to each other. Therefore, a torso opening 2T is formed by the upper edges of the front body region 1F and the back body region 1R in the diaper 1. Also, a left lower limb opening 2L is formed in the left part of the crotch region 1B where the above joining is not performed, and a right lower limb opening 2R is formed in the right part of the crotch region 1B. And when the diaper 1 is worn such that the wearer's left lower limb is inserted through the left lower limb opening 2L, the wearer's right lower limb is inserted through the right lower limb opening 2R, and the wearer's torso enters the torso opening 2T, the front body region 1 F is arranged on the abdominal side of the wearer, the back body region 1R is arranged on the back side of the wearer, and the left lower limb opening 2L and the right lower limb opening 2R are fixed to the wearer's body in a state of surrounding the wearer's thighs. Since the diaper 1 is fixed to the wearer's body in such a form, the wearer can move freely while wearing the diaper 1. Incidentally, the left lower limb opening 2L and the right lower limb opening 2R may be referred to as a pair of leg-around openings.

[0013] The diaper 1 has an absorber that can absorb and hold liquid, mainly disposed around the crotch region 1B. Further, in the diaper 1, in order to suppress the formation of a gap serving as a liquid outflow path between the diaper 1 and the wearer's skin, a three-dimensional gather 3BL is provided at the left lower limb opening 2L that surrounds the thigh of the wearer's left lower limb, a three-dimensional gather 3BR is provided at the right lower limb opening 2R that surrounds the thigh of the wearer's right lower limb, and a waist gather 3R is provided at the part that surrounds the wearer's abdominal circumference. Also, leg gathers 3LL and 3LR are provided at positions surrounding the base of the wearer's legs. The three-dimensional gathers 3BL and 3BR and the waist gather 3R adhere to the wearer's skin by the elastic force of the thread rubber. Also, the leg gathers 3LL and 3LR prevent a gap from being formed between the base of the wearer's legs and the diaper 1. Therefore, the discharged liquid discharged from the crotch of the wearer is absorbed by the absorber of the diaper 1 with almost no leakage from the diaper 1.

[0014] The diaper 1 can be used in combination with an absorbent pad (not shown). The absorbent pad is a substantially rectangular absorbent article provided with an absorber and absorbs the discharged liquid. When the diaper 1 and the absorbent pad are used in combination, the absorbent pad is placed on the skin side of the diaper 1 so as to contact the discharge hole of the wearer. The discharged liquid is first absorbed by the absorbent pad, and only the discharged liquid that cannot be absorbed by the absorbent pad reaches the absorber of the diaper 1 and is further absorbed. For this reason, even when the amount of discharged liquid is large, it is possible to prevent the discharged liquid from leaking from the diaper 1. Also, when the amount of discharged liquid is small and can be completely absorbed by the absorbent pad, only the absorbent pad needs to be replaced even when discharged liquid is generated, so the assistance cost can be reduced. Also, the diaper 1 can be used for a long time.

[0015] FIG. 2 is an exploded perspective view of the diaper 1 according to the embodiment. The diaper 1 has a cover sheet 4 and inner cover sheets 5F and 5R. The cover sheet 4 is a sheet having a substantially hourglass shape (a gourd shape) that forms the non-skin side surface of the diaper 1. The inner cover sheets 5F and 5R are sheets that are bonded to the cover sheet 4 in the front body region 1F and the rear body region 1R, respectively, and reinforce the cover sheet 4 in the front body region 1F and the rear body region 1R. In the state where the wearer is wearing the diaper 1, the cover sheet 4 is laminated on the non-skin side of the wearer, and the inner cover sheets 5F and 5R are laminated on the skin side of the wearer to form the outer surface of the diaper 1. Between the cover sheet 4 and the inner cover sheets 5F and 5R, thread rubber for forming the waist gather 3R and the leg gathers 3LL and 3LR is provided. Note that, instead of the thread rubber, an elastic member such as a strip-shaped rubber can be appropriately selected. The cover sheet 4 and the inner cover sheets 5F and 5R are an example of the outer body in the present disclosure.

[0016] In the present embodiment, the inner cover sheets 5F and 5R are separate bodies, but it is also possible to adopt a configuration in which a single inner cover sheet 5 extends from the front body region 1F to the rear body region 1R. Further, it is also possible to separately arrange a pad cover sheet that divides the cover sheet 4 and is arranged to cover the front body region 1F and the rear body region 1R and covers the non-skin side of the absorber 8. The configuration in which the inner cover sheet 5 is a single sheet and the configuration in which the cover sheet 4 is separated into a front side and a rear side are also included in the technical scope of the present invention.

[0017] The cover sheet 4 and the inner cover sheets 5F and 5R can use, for example, a non-woven fabric made of a liquid-impermeable thermoplastic resin as the material in order to suppress leakage of excrement. Here, examples of the liquid-impermeable thermoplastic resin include polyethylene (PE) and polypropylene (PP). etc. can be exemplified.

[0018] The diaper 1 has a backsheet 6, an absorber 8, and a topsheet 9, which are laminated in order on the wearer side surface of the cover sheet 4 and the inner cover sheets 5F and 5R. The backsheet 6, the absorber 8, and the topsheet 9 are an example of the interior body in the present disclosure. The backsheet 6 has a length in the longitudinal direction that reaches from the front body of the wearer via the crotch to the back body, and is a substantially rectangular parallelepiped sheet having a predetermined lateral width in the width direction orthogonal to the longitudinal direction. Both the absorber 8 and the topsheet 9 are sheet-like members having a substantially rectangular appearance similar to that of the backsheet 6, and are laminated on the backsheet 6 in order with the longitudinal direction being the same as the longitudinal direction of the backsheet 6. The backsheet 6 is a sheet formed of a liquid-impermeable thermoplastic resin in order to suppress leakage of excrement. Further, the topsheet 9 is a sheet-like member disposed on the skin side of the wearer so as to cover the water-absorbing surface of the absorber 8. This topsheet 9 has liquid permeability in part or in whole. Therefore, in a state where the diaper 1 is worn, the liquid excreted from the wearer penetrates through the topsheet 9 that can come into contact with the wearer's skin and enters the absorber 8, where it is absorbed. Examples of the liquid-permeable sheet include woven fabric, non-woven fabric, and porous film. Further, the topsheet 9 may have hydrophilicity. The topsheet 9 is an example of the skin-side sheet in the present disclosure. Also, the backsheet 6 is an example of the non-skin-side sheet in the present disclosure. Hereinafter, the laminate formed by laminating the backsheet 6, the absorber 8, and the topsheet 9 may be referred to as an interior body as a concept corresponding to the exterior body.

[0019] The absorbent body 8 has an absorbent core 8C made of one or more mats, and a core wrap sheet 7 that wraps the absorbent core 8C. The absorbent core 8C has a structure in which granular absorbent resin (polymer water absorbent material) such as SAP (Super Absorbent Polymer), which is a hydrophilic polymer having a cross-linked structure capable of absorbing and retaining water, is held in gaps between short fibers of cellulosic fibers such as pulp fibers, rayon fibers, or cotton fibers, or short fibers obtained by hydrophilizing synthetic fibers such as polyethylene, polypropylene, or polyethylene terephthalate. When the absorbent core 8C absorbs liquid excreted from the wearer, the absorbent resin held in the gaps between the short fibers swells to hold the liquid in the short fibers. The absorbent core 8C can have an appropriate shape according to the purpose, and can have, for example, a rectangular shape, an elliptical shape, or various other shapes. In this embodiment, the absorbent core 8C is an hourglass shape with a narrowed center.

[0020] The absorbent core 8C may be provided with a flow guide hole extending in the longitudinal direction, penetrating the skin-facing side and the non-skin-facing side, in the widthwise center of the crotch region 1B. When the flow guide hole is provided, the extension range of the flow guide hole includes the position opposite the urethral opening when the diaper 1 is not used in combination with an absorbent pad. Therefore, when the diaper 1 is not used in combination with an absorbent pad, urine produced by the wearer falls into the flow guide hole and spreads in the longitudinal direction, making it easier to be efficiently absorbed over a wide range of the absorbent core 8C.

[0021] The core wrap sheet 7 is a thin liquid-permeable sheet. By wrapping the absorbent core 8C with the core wrap sheet 7, it becomes difficult for the SAP of the absorbent core 8C described above to mix into other structures. Also, the collapse of the absorbent core 8C is suppressed. The core wrap sheet 7 can be formed of pulp fibers, and as an example, tissue paper can be used. The core wrap sheet 7 may be a single sheet, but it may also be composed of two sheets, an upper sheet disposed on the skin side of the wearer and a lower sheet disposed on the non-skin side of the wearer and wrapping around the side surface and the skin side of the absorbent core 8C. When the core wrap sheet 7 is composed of two sheets, the widthwise end portions of the upper sheet may be structured to be wrapped by other sheets (for example, the side sheets 10L and 10R, the back sheet 6, and the top sheet 9 described later). Note that the absorber 8 is wrapped by the back sheet 6 and the top sheet 9, and the collapse can also be suppressed by these sheets. Therefore, the core wrap sheet 7 may not be provided. Since it can be achieved, the core wrap sheet 7 may not be provided.

[0022] The back sheet 6, the absorber 8, and the top sheet 9 all extend from the front crotch region 1F to the back crotch region 1R. Therefore, when the back sheet 6, the absorber 8, and the top sheet 9 are laminated to cover the crotch (groin) of the wearer, both longitudinal end portions of the back sheet 6, the absorber 8, and the top sheet 9 are in a state of being located on the ventral side and the dorsal side of the wearer. That is, the crotch of the wearer is in a state of being covered by the absorber 8 from the ventral side to the dorsal side of the wearer. Therefore, no matter whether the wearer discharges liquid out of the body in a posture with the belly facing downward or a posture with the back facing downward, the discharged liquid will contact the absorber 8 through the top sheet 9.

[0023] In addition, the diaper 1 has elongated strip-shaped side sheets 10L and 10R for forming the three-dimensional gathers 3BL and 3BR described above. The side sheets 10L and 10R are provided at the long-side portions of the top sheet 9. Thread rubbers 10L1 and 10R1 are adhered to the side sheets 10L and 10R along the longitudinal direction. Thus, when the edge 4F4, which is the left edge of the front body region 1F of the cover sheet 4, and the edge 4R4, which is the left edge of the rear body region 1R, are joined to each other, and the edge 4F5, which is the right edge of the front body region 1F of the cover sheet 4, and the edge 4R5, which is the right edge of the rear body region 1R, are joined to each other, to form the completed diaper 1 as shown in FIG. 1, the side sheets 10L and 10R are drawn in the longitudinal direction by the contraction force of the thread rubbers 10L1 and 10R1 and rise from the top sheet 9 along the folding lines 10L2 and 10R2. As a result, three-dimensional gathers 3BL and 3BR that prevent the outflow of liquid from the left lower limb opening 2L and the right lower limb opening 2R are formed. The joining method of the edges 4F4 and 4R4, and the edges 4F5 and 4R5 is not particularly limited, and can be performed, for example, by heat sealing, high-frequency sealing, ultrasonic sealing, or the like.

[0024] Furthermore, the diaper 1 includes an end sheet 11F laminated on the wearer-side surface in the front body region 1F of the cover sheet 4, sandwiching the back sheet 6, the absorber 8, the top sheet 9, and the side sheets 10L and 10R, and an end sheet 11R laminated on the wearer-side surface in the rear body region 1R of the cover sheet 4. The end sheets 11F and 11R are strip-shaped sheets that are overlaid on the cover sheet 4 and the inner cover sheets 5F and 5R on one end side in the longitudinal direction of the top sheet 9. The end sheets 11F and 11R are non-water-permeable nonwoven fabrics, and mainly reinforce the cover sheet 4 and the inner cover sheets 5F and 5R at the waist contact portion of the diaper 1. Also, adhesives are applied to the end sheets 11F and 11R respectively, and they are adhered to the inner cover sheets 5F and 5R by the adhesives. The end sheets 11F and 11R are disposed on the skin side of the laminate formed by the back sheet 6, the absorber 8, the top sheet 9, and the side sheets 10L and 10R, preventing the edge of the laminate from directly touching the skin and giving the wearer a sense of discomfort. Also, it prevents the contents of the absorber 8 from dissipating from the longitudinal ends of the absorber 8.

[0025] In addition, the diaper 1 includes pad holding sheets 12F and 12R. The pad holding sheet 12F is a sheet disposed under the crotch of the end sheet 11F, and the pad holding sheet 12R is a sheet disposed under the crotch of the end sheet 11R. The pad holding sheets 12F and 12R may be nonwoven sheets made of a thermoplastic resin. In the example of this figure, the end sheets 11F and 11R and the pad holding sheets 12F and 12R do not overlap in the thickness direction, but a configuration where the pad holding sheets 12F and 12R are disposed on the non-skin side of the end sheets 11F and 11R is also conceivable.

[0026] The pad holding sheets 12F and 12R have at least one cut extending in the width direction, and the ends of an absorbent pad P (not shown) can be inserted inside the cut. It may have the cut only in the pad holding sheet 12R that becomes the back side during wearing, or both the pad holding sheet 12R and the pad holding sheet 12F that becomes the front side during wearing. It may be provided on the side. By inserting the end of the absorbent pad P into the pad holding sheets 12F and 12R, the position of the absorbent pad can be held with respect to the diaper 1. In the example of this figure, the pad holding sheets are arranged on both sides of the front body region 1F and the back body region 1R. For example, a configuration in which only the pad holding sheet 12R is arranged in the back body region 1R and the pad holding sheet 12F in the front body region 1F is omitted is also conceivable. When assuming an elderly person as the wearer of the diaper 1, it is easy for the wearer to adjust the position of the absorbent pad on the ventral side, but it is difficult to reach the back side with the hand. Therefore, it can be said that the significance of providing the pad holding sheet 12R on the back side to prevent the displacement of the absorbent pad is greater. The widthwise end portions of the pad holding sheets 12F and 12R are joined to the outer body directly or indirectly.

[0027] FIG. 3 is a diagram schematically showing a deployed and extended state of the diaper 1 according to the embodiment. FIG. 3(A) schematically shows the internal structure when the deployed and extended diaper 1 is viewed from the left side. FIG. 3(B) schematically shows a plan view of the deployed and extended diaper 1. In FIG. 3(B), the side sheets 10L and 10R and the end sheets 11F and 11R are not shown. In this figure, an inner cover sheet 5F is provided so as to cover the front body region 1F of the diaper 1, and an inner cover sheet 5R is provided so as to cover the back body region 1R of the diaper 1. And in the crotch region 1B, the inner cover sheets 5F and 5R do not exist. As shown, the crotch region 1B is narrower in width than the front body region 1F and the back body region 1R.

[0028] The cover sheet 4 has one end folded at the fold lines 4FF and 4RF shown in Fig. 2. In the front body region 1F, a plurality of thread rubbers (thread-like rubbers) 4F1 and 4F2 extend in the width direction in a stretched state and are adhesively bonded at intervals in the longitudinal direction between the front body region 1F of the cover sheet 4 and the inner cover sheet 5F. Also, in the rear body region 1R, thread rubbers (thread-like rubbers) 4R1 and 4R2 extend in the width direction in a stretched state and are adhesively bonded at intervals in the longitudinal direction between the rear body region 1R of the cover sheet 4 and the inner cover sheet 5R. The thread rubbers 4F1 and 4F2 are provided in the order of thread rubber 4F1 and thread rubber 4F2 from the fold line 4FF side along the fold line 4FF that will form the upper edge of the front body region 1F when folded. The thread rubbers 4R1 and 4R2 are also provided in the order of thread rubber 4R1 and thread rubber 4R2 from the fold line 4RF side along the fold line 4RF that will form the upper edge of the rear body region 1R when folded, similar to the thread rubbers 4F1 and 4F2. The thread rubbers 4F1, 4F2, 4R1, and 4R2 are an example of a plurality of first elastic members in the present disclosure.

[0029] Therefore, the thread rubbers 4F1 and 4F2 will be provided on the cover sheet 4 in such a way that the longitudinal direction, which is the expansion and contraction direction, is in the left-right direction of the diaper 1. Also, the thread rubbers 4R1 and 4R2 will be provided on the cover sheet 4 in such a way that the longitudinal direction, which is the expansion and contraction direction, is in the left-right direction of the diaper 1. Thus, when the edge 4F4 and the edge 4R4 are joined to each other and the edge 4F5 and the edge 4R5 are joined to each other, the thread rubbers 4F1, 4F2 and the thread rubbers 4R1, 4R2 form a substantially annular elastic member that circulates along the body opening 2T and functions as the waist gather 3R that contracts the body opening 2T in the body circumference direction. That is, the thread rubbers 4F1, 4F2 and the thread rubbers 4R1, 4R2 exert a contracting force to make the diaper 1 fit closely to the wearer and prevent a gap from being formed between the diaper 1 and the wearer's abdominal circumference. The thread rubbers 4F2 and 4R2 overlap the absorber 8 in a part on the crotch region 1B side.

[0030] The thread rubbers 4F1 and 4R1 are provided so as to extend in the width direction in parallel with a certain interval in the longitudinal direction along the portions that become the upper edges of the front body region 1F and the rear body region 1R shown in FIG. 1. The thread rubbers 4F2 and 4R2 are provided so as to extend in the width direction in parallel with a predetermined interval in the longitudinal direction. The interval between the thread rubbers 4F1 and 4R1 is narrower than the interval between the thread rubbers 4F2 and 4R2. Therefore, in the state where the diaper 1 is worn, the thread rubbers 4F1 and 4R1 tightly compress the wearer's abdominal circumference relatively strongly above the thread rubbers 4F2 and 4R2. The thread rubbers 4F1 and 4R1 have the function of preventing the wearing position from shifting by closely attaching the diaper 1 to the wearer and preventing the discharge liquid from leaking from the abdomen and back.

[0031] The interval between the thread rubbers 4F2 and 4R2 is wider than that between the thread rubbers 4F1 and 4F2, and relieves the sense of pressure on the wearer caused by the contraction force of the thread rubbers 4F1 and 4R1. Also, when using an inner pad, it suppresses the displacement of the inner pad.

[0032] A plurality of thread rubbers 4F3 are adhesively bonded in an extended state between the cover sheet 4 and the inner cover sheet 5F, and a plurality of thread rubbers 4R3 are adhesively bonded in an extended state between the cover sheet 4 and the inner cover sheet 5R. The thread rubbers 4F3 and 4R3 are elastic members provided in a region closer to the crotch region 1B side than the thread rubbers 4F2 and 4R2 among the thread rubbers provided between the cover sheet 4 and the inner cover sheets 5F and 5R. However, unlike other thread rubbers that are adhesively bonded without interruption from the left end to the right end of the cover sheet 4 and the inner cover sheets 5F and 5R, the thread rubbers 4F3 and 4R3 are curved in the direction of the crotch region 1B and are arranged in the constricted portion of the hourglass-shaped absorption core 8C, overlapping a part of the core wrap sheet 7. With this configuration, the arrangement region of the thread rubber 4F3 functions as the leg gathers 3LL and 3LR which are leg circumference contraction parts, and abuts a pair of leg circumference openings including the left lower limb opening 2L and the right lower limb opening 2R against the skin surface of the wearer and follows the movement of the wearer's lower limbs. The thread rubbers 4F3 and 4R3 are an example of a plurality of second elastic members in the present disclosure.

[0033] The cover sheet 4 is folded along the folding lines 4FF and 4RF and extends to the regions where the thread rubbers 4F1 and 4R1 are arranged, and reinforces the regions where the thread rubbers 4F1 and 4R1 are arranged at the folded portions. The end sheets 11F and 11R are provided in the regions where the thread rubbers 4F2 and 4R2 are arranged where the cover sheet 4 folded along the folding lines 4FF and 4RF does not extend, and reinforce the regions where the thread rubbers 4F2 and 4R2 are arranged. Although a part of the crotch region 1B side of the thread rubbers 4F2 and 4R2 and the end sheets 11F and 11R overlaps with the absorber 8, it does not overlap with the extending region of the absorbent core 8C.

[0034] In the present application, the state where the sheets overlap is not limited to the form where the sheets to be overlapped overlap in a state where they are in full contact with each other, but is a concept including the form where a part of the sheets overlap. For example, one end side part of the end sheet 11F in the longitudinal direction of the back sheet 6 is overlapped with a part of the cover sheet 4 in a state of touching it. Since the diaper 1 is formed by stacking the cover sheet 4, the end sheets 11F and 11R, the inner cover sheets 5F and 5R, and the side sheets 10L and 10R in addition to the back sheet 6 and the top sheet 9 with the absorber 8 sandwiched therebetween, it can be said that it has a laminate in which these plurality of sheets are stacked.

[0035] FIG. 4 is a cross-sectional view showing a state in which an absorbent pad is held by a pad holding sheet of a diaper according to the first embodiment. The left side of the drawing is the side of the body opening 2T, and the right side of the drawing is the side of the crotch region 1B. A wearer or caregiver of the diaper 1 can insert the longitudinal end portions of the absorbent pad P into the cuts provided in the pad holding sheets 12F and 12R. FIG. 4(A) is a view in which the absorbent pad P is inserted from the non-skin side so as to pass through the cuts provided in the pad holding sheets 12F and 12R. FIG. 4(B) is a view in which the absorbent pad P is inserted from the skin side so as to pass through the cuts provided in the pad holding sheets 12F and 12R. Whichever insertion method is used, the absorbent pad P is less likely to be displaced, and the replacement frequency of the diaper 1 can be reduced.

[0036] FIG. 5 is a diagram showing a state in which the absorbent pad is more firmly held by the pad holding sheet. Just by placing the absorbent pad P on the non-skin surface side of the pad holding sheets 12F and 12R or inserting it into the cut, the position can be held against the force in the left-right direction. On the other hand, when a force is applied in the front-back direction, the absorbent pad P may come out of the pad holding sheets 12F and 12R, and positional deviation may not be suppressed. To address such a problem, for example, in the form shown in FIG. 5, the absorbent pad P can be fixed.

[0037] FIG. 5(A) shows that the absorbent pad P is passed through the skin surface side of the pad holding sheets 12F and 12R, then folded back to the non-skin surface side and passed through the non-skin surface side of the pad holding sheets 12F and 12R, and the cut is passed through toward the skin surface side so that the absorbent pads P overlap each other. FIG. 5(B) shows that the absorbent pad P is passed through the non-skin surface side of the pad holding sheets 12F and 12R, then folded back to the skin surface side and passed through the skin surface side of the pad holding sheets 12F and 12R, and the cut is passed through toward the non-skin surface side so that the absorbent pads P overlap each other. By bending the absorbent pad P multiple times using the pad holding sheets 12F and 12R and the cuts provided in the pad holding sheets 12F and 12R, positional deviation can be suppressed not only in the left-right direction but also against the force applied in the front-back direction.

[0038] FIG. 6 is a view showing a state in which the pad holding sheet and the end sheets are superimposed. In the example of FIG. 3, the pad holding sheets 12F and 12R are disposed on the lower thigh side of the end sheets 11F and 11R, and the two sheets are not superimposed. However, the end sheets 11F and 11R can be extended to the lower thigh side to superimpose the two sheets. In the example of FIG. 6, the end sheets 11F and 11R extend to the skin side of the absorbent core 8C. The end sheets 11F and 11R are intermittently adhered to the inner cover sheets 5F and 5R, but are not adhered to the top sheet 9. That is, the end sheets 11F and 11R are not adhered to the interior body. The end sheets 11F and 11R are superimposed on the pad holding sheets 12F and 12R in the superimposed range with the absorber 8. For this reason, the pad holding sheets 12F and 12R are covered with the end sheets 11F and 11R.

[0039] The absorbent pad P inserted in this state reaches inside the bag-shaped space formed between the end sheets 11F and 11R and the absorber 8 through the cuts provided in the pad holding sheets 12F and 12R. In the form shown in FIG. 6, the longitudinal ends of the absorbent pad P are covered by the end sheets 11F and 11R. Since the body opening 2T side of the end sheets 11F and 11R is adhered to the exterior body and the outer sides in the width direction of the end sheets 11F and 11R are also adhered to the exterior body, a pocket-shaped space is formed between the end sheets 11F and 11R and the absorber 8.

[0040] In the form of FIG. 6, the longitudinal ends of the absorbent pad P are covered by the pocket-shaped space formed between the end sheets 11F and 11R and the absorber 8, and the displacement is further suppressed by the pad holding sheets 12F and 12R. The discharged liquid may reach the longitudinal ends of the absorbent pad P in some cases. Here, since the longitudinal ends of the absorbent pad P enter the inside of the pocket-shaped space, the discharged liquid is held inside the pocket-shaped space and does not flow out further to the outside in the longitudinal direction. In the form of FIG. 6, back leakage and abdominal leakage of the discharged liquid can be suppressed.

[0041] FIG. 7 is a diagram showing the form of the notch. In each drawing in FIG. 7, the upper direction is the side of the body opening 2T, and the lower direction is the side of the crotch region 1B. In FIG. 7(A), the notch is linear and extends in the width direction. Such a notch is easy to process. The notch may be pre-cut, or perforations may be made in the notched portion, and the user may break and separate the perforations to form the notch. By making perforations in the notched portion, it is possible to form a notch of a sufficient length according to the size of the absorbent pad P.

[0042] In FIG. 7(B), the notch has a convex shape with the central side in the width direction facing the end side in the longitudinal direction. More specifically, the inner side in the width direction has a semi-elliptical shape bent toward the side of the body opening 2T. Thus, when the notch is arranged such that the central portion in the width direction is convex toward the side of the body opening 2T, the opening formed by the notch spreads outward in the longitudinal direction with respect to the line connecting both ends in the width direction of the notch. When using a notch in such a form, the opening can be widened, and the insertion of the absorbent pad P becomes easy. Also, in a state where the absorbent pad P is attached, the absorbent pad P spreads in the width direction, and the width direction end of the absorbent pad P is longer than the line connecting the width direction ends of the notch. For this reason, in the worn state, the absorbent pad P is less likely to come out of the notch.

[0043] In FIG. 7(C), the notch has a trapezoidal shape with the upper base side arranged on the side of the body opening 2T. Similar to FIG. 7(B), in FIG. 7(C) as well, the notch has a convex shape with the central side in the width direction facing the end side in the longitudinal direction. Even in the form of FIG. 7(C), it is possible to obtain the same effect as FIG. 7(B).

[0044] FIG. 8 is a diagram showing an example of the end portion of the cut. The pad holding sheets 12F and 12R are provided with reinforcing portions at at least one location on both ends in the width direction of the cut. By providing the reinforcing portions, it is possible to suppress the breakage of the end portions in the width direction of the cut and the expansion of the cut. As an example, the reinforcing portion can be formed by applying heat to a part of the pad holding sheets 12F and 12R to cure it. Alternatively, it may be formed by joining the pad holding sheets 12F and 12R to the exterior body with an adhesive such as a hot melt adhesive. Or, a combination of a reinforcing portion formed by heat curing and a reinforcing portion formed by joining may be used.

[0045] Each figure shown in FIG. 8 is a diagram showing an example of a form that can be taken as the reinforcing portion. FIG. 8(A) is an example in which the reinforcing portion is arranged in a linear shape orthogonal to the extension line of the cut. By arranging the linear reinforcing portion orthogonal to the extension line of the cut, it is possible to suppress the expansion of the cut outward in the width direction.

[0046] FIG. 8(B) is an example in which the reinforcing portion is arranged in a U-shape in which the bent portion contacts the extension line of the cut. The cut does not necessarily expand on the extension line of the cut and may tend to expand in an oblique direction. For example, this tendency becomes stronger when the shape of the cut is arranged as shown in FIGS. 7(B) and 7(C). By arranging the reinforcing portion in a U-shape in which the bent portion contacts the extension line of the cut, it is possible to effectively suppress the expansion even when the cut tries to expand deviating from the extension line of the cut.

[0047] FIG. 8(C) is an example in which the reinforcing portion is arranged in a square bracket shape. Although the cut does not necessarily expand on the extension line of the cut, the probability of expanding on the extension line of the cut is the highest. When the reinforcing portion is arranged as shown in FIG. 8(C), a high expansion suppressing effect can be obtained when the cut tries to expand on the extension line of the cut, and an expansion suppressing effect can also be obtained when the cut tries to expand obliquely with respect to the cut.

[0048] FIG. 8(D) shows an example in which the reinforcing portions are arranged concentrically with the widthwise end portions of the cuts as the centers. By arranging the reinforcing portions as shown in FIG. 8(D), an expansion suppressing effect can be obtained regardless of the direction in which the cuts expand from the widthwise end portions of the cuts, so it can be said to be suitable.

[0049] The cuts provided in the pad holding sheets 12F and 12R may be a single one as illustrated heretofore, or a plurality of cuts may be arranged spaced apart in the longitudinal direction. When a plurality of cuts are arranged, the widthwise lengths of the respective cuts may be the same, or may be different from adjacent cuts. For example, a cut long in the width direction may be provided on the lower crotch side which is the inner side in the longitudinal direction, and a cut short in the width direction may be provided on the body opening side which is the outer side in the longitudinal direction. If a plurality of cuts are arranged and absorbent pads are inserted into the plurality of cuts, the absorbent pads will be less likely to fall out. Further, by widening the width of the cut on the crotch portion side which is the inner side in the longitudinal direction and narrowing the width of the cut on the body opening side which is the outer side in the longitudinal direction, the absorbent pad can easily cope with the movement of the wearer and is less likely to fall out.

[0050] <Second Embodiment> FIG. 9 is an exploded perspective view of the diaper according to the second embodiment. In the following embodiments, in each figure, components having substantially the same functions as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. In the second embodiment, the diaper 1 does not have the pad holding sheets 12F and 12R. In the second embodiment, the end sheets 11F and 11R are wider in the longitudinal direction as compared with the first embodiment, and cover a wider range on the skin side of the front body region 1F and the back body region 1R of the diaper 1.

[0051] FIG. 10 is a diagram schematically showing a state in which the diaper according to the second embodiment is unfolded and extended. The end sheets 11F and 11R are wide in the longitudinal direction as described with reference to FIG. 9, overlap the longitudinal ends of the absorber 8, and reach the outside in the longitudinal direction of the extending region of the absorbent core 8C. The end sheets 11F and 11R are joined to the exterior body by a plurality of linear adhesive portions spaced apart from each other in the longitudinal direction within the overlapping range with the exterior body on the side of the body opening 2T.

[0052] At the overlapping portion with the absorber 8 in the central portion in the width direction on the crotch side of the end sheets 11F and 11R, cuts extending in the width direction are arranged in the end sheets 11F and 11R. Similar to the cuts arranged in the pad holding sheets 12F and 12R in the first embodiment, the longitudinal ends of the absorbent pad can be inserted into the cuts. Note that there may be one cut, or a plurality of cuts may be arranged in parallel at predetermined intervals in the longitudinal direction. When a plurality of cuts are arranged, the extending widths of the respective cuts may be different. Note that the cuts may be arranged only in the end sheet 11R on the back side during wearing, or may be arranged not only in the end sheet 11R but also in the end sheet 11F on the front side during wearing.

[0053] The end sheets 11F and 11R overlap the outer side in the longitudinal direction of the absorber 8 near the cut on the crotch region 1B side of their extending regions. Near the cut on the crotch region 1B side of the extending region, the end sheets 11F and 11R are not joined to the interior body, and a non-adhesive portion is disposed between them and the top sheet 9 constituting the interior body. On the other hand, on the extension line of the cut, a joining portion 11S for joining the end sheets 11F and 11R to the exterior body is disposed. At the joining portion 11S, the end sheets 11F and 11R and the exterior body are firmly joined by an adhesive such as a hot melt adhesive or by heat welding. If the entire extending range on the crotch region 1B side of the end sheets 11F and 11R is non-adhesive to the interior body and the exterior body, the absorbent pad P inserted into the cut disposed in the extending range is likely to move in the width direction, and there is a problem that the width direction position of the absorbent pad P becomes unstable despite being inserted into the cut. To solve this problem, it is preferable to dispose a joining portion 11S that restricts the movement of the end sheets 11F and 11R with respect to the interior body and the exterior body on the outer sides in the left-right direction of the cut.

[0054] On the other hand, on the trunk opening 2T side of the cut in the extending region of the end sheets 11F and 11R, the end sheets 11F and 11R are joined to the interior body and the exterior body by a plurality of linear adhesive portions, suppressing the contents of the interior body from spilling out from the longitudinal end of the interior body. In the diaper 1 according to the second embodiment, the adhesive force of the linear adhesive portion disposed on the lowermost crotch side among the plurality of linear adhesive portions is stronger than that of the other linear adhesive portions. As a method of increasing the adhesive force, it is conceivable to thicken the linear adhesive portion, increase the amount of the hot melt adhesive, or use an adhesive having a stronger adhesive force. The end sheets 11F and 11R cover the longitudinal ends of the absorber 8 from the skin surface side, and have a function of suppressing the leakage of the SAP particles and pulp fibers, which are the contents of the absorbent core 8C, from the longitudinal ends of the absorber 8. However, in the second embodiment On the lower thigh region 1B side of the end sheets 11F and 11R, a large non-adhesive region is arranged, and the non-adhesive region may lift up from other regions. When the adhesive force of the linear adhesive portion is insufficient, if a force is applied to the lifted non-adhesive region, the linear adhesive portion may peel off, and the content of the absorbent core 8C may leak. This can be particularly problematic when the absorbent pad P is inserted into the cut provided in the non-adhesive region. Therefore, by strengthening the adhesive force of the linear adhesive portion arranged on the lowermost side of the plurality of linear adhesive portions, the end sheets 11F and 11R are prevented from peeling off from the end of the absorbent body 8, so that this problem does not occur.

[0055] FIG. 11 is a cross-sectional view showing a state in which an absorbent pad is held by the end sheet of the diaper according to the second embodiment. FIG. 11(A) is a view showing an example in which the absorbent pad P is inserted from the non-skin surface side toward the skin surface side into the end sheets 11F and 11R having one cut. By widening the extension width of the end sheets 11F and 11R and providing a cut, it is possible to suppress the displacement of the absorbent pad P without separately arranging the pad holding sheets 12F and 12R.

[0056] Also, by inserting the absorbent pad P into the cut provided in the end sheets 11F and 11R as shown in FIG. 11(A), the movement of the discharged liquid can also be suppressed. When a cut is provided in the end sheets 11F and 11R and the absorbent pad P is inserted from the non-skin surface side to the skin surface side of the cut, the lower thigh side of the cut of the end sheets 11F and 11R covers the skin surface side of the absorbent pad P. When the discharged liquid moves on the absorbent pad P and reaches the longitudinal end of the absorbent pad P, the lower thigh side of the cut of the end sheets 11F and 11R becomes a protrusion that suppresses the movement of the discharged liquid, and exhibits the effect of suppressing the leakage of the discharged liquid from the abdomen and back.

[0057] FIG. 11(B) is a diagram showing an example in which a plurality of cuts are arranged at intervals in the longitudinal direction in the end sheets 11F and 11R, and the absorbent pads P are arranged in the plurality of cuts. As already described, a plurality of cuts can be arranged in the end sheets 11F and 11R at intervals in the longitudinal direction. By providing a plurality of cuts in the end sheets 11F and 11R, it becomes possible to use the diaper 1 in combination with absorbent pads P of a plurality of sizes. Also, as shown in FIG. 11(B), it is also possible to pass a single absorbent pad through a plurality of cuts. By passing the absorbent pad through a plurality of cuts as shown in this figure, the absorbent pad P and the diaper 1 are more strongly engaged, and not only the displacement in the width direction of the absorbent pad P but also the displacement in the longitudinal direction can be more effectively suppressed.

[0058] FIG. 12 is a diagram showing the form of the cuts. FIG. 12(A) is a diagram in which a plurality of cuts are made in the end sheets 11F and 11R. The cuts are arranged in parallel in the width direction at a predetermined interval in the longitudinal direction. In the example of this figure, the lengths of the cuts are different from those of adjacent cuts. Specifically, the lengths of the cuts are longer on the side of the body opening 2T and shorter on the side of the crotch region 1B. On the extension lines of the widthwise ends of the cuts, highly rigid reinforcing portions are arranged to suppress the expansion of the cuts. Specific examples of the forms that the reinforcing portions can take are as shown in FIG. 8. In general, since the absorbent pad P with a narrow width also has a narrow vertical width and the absorbent pad P with a wide width also has a wide vertical width, it is preferable to narrow the width of the cuts arranged more on the side of the crotch region 1B and widen the width of the cuts arranged more on the side of the body opening 2T. The specific form of the cuts may be the same as the cuts provided in the pad holding sheets 12F and 12R shown in FIGS. 7 and 8.

[0059] By making a plurality of cuts in the end sheets 11F and 11R, the diaper 1 can be used in combination with absorbent pads P of a plurality of sizes. Also, as shown in FIG. 11(B), it is also possible to insert a single absorbent pad into a plurality of cuts, and by inserting it in this way, the displacement of the absorbent pad in the width direction and also in the longitudinal direction can be effectively suppressed.

[0060] FIG. 12B is a diagram showing an example in which a restriction portion is arranged in the slit. The slit is a perforation, and a restricting portion is disposed on the widthwise outer side of the slit. The restricting portion may be formed by thermally curing a part of the end sheets 11F, 11R, similar to the reinforcing portion shown in FIG. 8. In the example shown in the figure, the restricting portion is disposed so as to straddle the slit at a right angle. When the perforation is torn and separated to form the slit, the destruction of the perforation stops at the restricting portion, and no further destruction occurs unless force is intentionally applied. In this configuration, the restricting portion prevents the slit from being easily formed, making it easy to accommodate absorbent pads P of various widths. By adopting this configuration, a single slit can accommodate absorbent pads P of multiple width sizes.

[0061] The restricting portion may be created by lengthening the interval between the holes of the perforation at the portion corresponding to the restricting portion, or by overlapping the perforation with the heat-cured portion that becomes the restricting portion, so that the perforation is less likely to tear at that portion. The restricting portion may be created by applying hot melt adhesive to the non-skin-facing side of the restricting portion and bonding the end sheets 11F, 11R to the sheets arranged on the non-skin-facing side of the end sheets 11F, 11R. When the restricting portion is provided, the end sheets 11F, 11R are bonded to other sheets at the restricting portion and cannot be released, so that the wearer or caregiver needs to release the bond between the restricting portion and the other sheets in order to insert the absorbent pad P beyond the restricting portion. In this way, various configurations can be adopted for the restricting portion, and by providing the restricting portion to enable the width to be gradually increased, the diaper 1 can be used in combination with absorbent pads having various widths.

[0062] FIG. 13 is a diagram showing a method of wearing an absorbent pad. When wearing the absorbent pad P, it is preferable to wear it as shown in FIG. 13. The diaper 1 according to the present embodiment is an adult pant-type diaper, and the assumed main users are the elderly. Generally, the elderly are often able to turn their hands to the ventral side for operation, but are not good at turning their hands to the dorsal side for operation. Therefore, before pulling up the diaper 1, the absorbent pad P is deeply inserted into the cut provided in the dorsal end sheet 11R in advance so that the absorbent pad P protrudes to the dorsal side. Then, after pulling up the diaper 1, put a hand into the crotch region 1B, grasp the end of the absorbent pad P on the front body region side, pull it toward the ventral side, and pull it up to an appropriate position. When the position of the absorbent pad P is displaced on the abdominal side, even an elderly person can often correct it by himself / herself. On the other hand, on the dorsal side where correction is difficult, the absorbent pad P is inserted into the cut provided in the end sheet 11R, and its position is less likely to be displaced. In this way, by providing a cut at least in the dorsal end sheet 11R, when an elderly person tries to use the absorbent pad P and the diaper 1 together alone, the relative position of the absorbent pad P can be easily maintained.

[0063] Note that, as shown in FIG. 13, the cut may be provided in both the end sheets 11F and 11R. When a cut is provided in the ventral end sheet 11F in addition to the dorsal end sheet 11R, the position of the absorbent pad P is more stable by inserting the absorbent pad P into the ventral cut, which is preferable.

[0064] For example, when there are no cuts in the end sheets 11F and 11R, even if the absorbent pad P is placed at an appropriate position before pulling up, it may shift during the pulling-up process. Particularly when the absorbent pad P shifts on the back side, it is difficult for the elderly to correct it. A configuration in which a gel-like anti-slip sheet or hook-and-loop tape is attached to the non-skin side of the absorbent pad P to make it difficult to slip with the absorber is also conceivable. However, in such a configuration, there are problems that the number of members required for the absorbent pad P increases and the position adjustment after wearing itself becomes difficult. In the diaper 1 according to the present embodiment, cuts are provided in the end sheets 11F and 11R, the absorbent pad P is inserted into the cut in the end sheet 11R on the back side, and the position is adjusted on the ventral side after pulling up, so that these problems can be solved.

[0065] <Third Embodiment> FIG. 14 is an exploded perspective view of a diaper according to the third embodiment. Also in the third embodiment, the diaper 1 does not have the pad holding sheets 12F and 12R, and the end sheets 11F and 11R are wider in the longitudinal direction as in the second embodiment. On the other hand, in the third embodiment, the pad holding sheets 12F and 12R are narrower in the width direction.

[0066] FIG. 15 is a diagram schematically showing a developed and extended state of a diaper according to the third embodiment. In the third embodiment, the end sheets 11F and 11R are narrower than in other embodiments and do not reach the widthwise ends of the outer body. In a pant-type diaper, both widthwise ends of the outer body on the front body region 1F side and the back body region 1R side are joined to both widthwise ends of the back body region 1 side and the front body region 1F side to form side flaps, which are joining portions, at the edges, so as to cover the wearer's torso. The end sheets 11F and 11R according to the third embodiment do not reach both widthwise ends, and are not joined to other sheets constituting the outer body when the side flaps are formed. Further, the end sheets 11F and 11R are non-adhesive or weakly adhesive peelable portions with respect to the outer body on the side of the body opening 2T, which is the outer side in the longitudinal direction, and when held from the side of the body opening 2T, the side of the body opening 2T is easily peeled off.

[0067] On one hand, on the crutch region 1B side of the end sheets 11F and 11R, more specifically, on the portion overlapping with the absorber 8, for example, an adhesive such as a hot melt adhesive is applied, and a plurality of adhesive lines extending in the width direction are arranged. The crutch region 1B side of the end sheets 11F and 11R is joined to other sheets including the interior body by the adhesive lines and is not easily peeled off. Among the adhesive lines, the adhesive line facing the end of the absorber 8 is a so-called strong adhesion portion that is joined to other sheets with very high strength. In this figure, the strong adhesion portion is represented by expressing the joint portion wide, but for example, the strong adhesion portion may be realized by methods such as heat fusion of the portion or using an adhesive with high strength.

[0068] Cuts extending in the width direction are arranged in the non-adhesive portion or weak adhesive portion of the end sheets 11F and 11R. The cuts may be single or multiple. In the form shown in FIG. 15, two cuts are arranged in parallel in the longitudinal direction at a predetermined interval and in the extending direction. The lengths of the cuts may be the same or different. For example, in the form shown in FIG. 15, the cut on the torso opening 2T side is narrow and the cut on the crutch region 1B side is wide. Thus, the fixing method of the end sheets 11F and 11R and the configuration of the cuts according to the third embodiment are different from the configuration of the end sheets 11F and 11R according to the second embodiment and are generally reversed.

[0069] Also in the third embodiment, as shown in FIG. 8, a reinforcing portion straddling the lower extension line of the cut can be provided. Further, as shown in FIG. 12, the cut can be made into a perforation, and in addition to the reinforcing portion, a restricting portion for suppressing the separation of the perforation can be provided so that a cut having a size corresponding to the lateral width of the absorbent pad P can be opened.

[0070] FIG. 16 is a cross-sectional view showing a state in which an absorbent pad is held by an end sheet of a diaper according to a third embodiment. In the third embodiment, the end sheets 11F and 11R on the torso opening 2T side, which are non-adhesive or low-adhesive portions, are peeled off from the outer body, folded back to the thigh region 1B side, and stand up on the skin side. In the present embodiment, since the widthwise ends of the end sheets 11F and 11R do not cover the side flaps and are not fixed, the standing up is not inhibited. A wearer or a caregiver can insert the longitudinal end of the absorbent pad P into the cut provided on the torso opening 2T side of the end sheets 11F and 11R standing up on the skin side, thereby suppressing displacement. As shown in FIG. 15, when a plurality of cuts are provided, the cut on the thigh region 1B side is long and the cut on the torso opening 2T side is short. However, in the usage state shown in FIG. 16, since the end sheets 11F and 11R are used in a folded state, in the usage state, the cut on the thigh region 1B side and the cut that becomes the torso opening 2T side becomes short, corresponding to the absorbent pad P of a small size that is short in both the longitudinal direction and the width direction, and the cut on the torso opening 2T side becomes long, enabling correspondence to the absorbent pad P that is long in both the longitudinal direction and the width direction.

[0071] In the example of FIG. 16, a plurality of cuts are arranged in the end sheets 11F and 11R. In the example of FIG. 16, a wearer or a caregiver can insert the absorbent pad P from the thigh region 1B side of the cut on the folded longitudinal end side, and hold the absorbent pad P in a form in which the end is inserted into the cut on the folded longitudinal inner side as well. By holding the absorbent pad P using the two cuts provided in the end sheets 11F and 11R, it is possible to suppress displacement of the absorbent pad P not only in the width direction but also in the longitudinal direction.

[0072] At this time, the adhesive line provided at the position where the end sheets 11F and 11R face the end of the absorbent body 8 is a strong adhesion and does not peel off. By not peeling off the end sheets 11F and 11R at the end of the absorbent body 8, the effect of not dissipating the contents of the absorbent core 8C from the longitudinal end of the absorbent body 8, which is the original function of the end sheets 11F and 11R, is maintained.

[0073] As described above, the present embodiment and the modified examples have been explained, but the content of the present invention is not limited to the above embodiment. For example, the content of the present invention is also applicable when a tape-type diaper is used in combination with an absorbent pad.

[0074] The features included in each of the embodiments and their modified examples disclosed above can be combined with each other.

Explanation of Signs

[0075] 1 ·· Diaper 1F ·· Abdomen front region 1B ·· Crotch region 1R ·· Back body region 2R ·· Right lower limb opening 2L ·· Left lower limb opening 3BL, 3BR ·· Three-dimensional gathers 3R ·· Waist gather 3LL, 3LR ·· Leg gathers 4 ·· Cover sheet 4F1, 4F2, 4F3, 4R1, 4R2, 4R3 ·· Thread rubber 4F4, 4R4, 4F5, 4R5 ·· Edge 4FF, 4RF ·· Fold line 5F, 5R ·· Inner cover sheet 6 ·· Back sheet 7 ·· Core wrap sheet 8 ·· Absorbent body 9 ·· Top sheet 10L, 10R ·· Side sheet 10L1, 10R1 ·· Thread rubber 11F, 11R ·· End sheet 12F, 12R ·· Pad holding sheet P ·· Absorbent pad

Claims

1. An interior body including an absorber, disposed so as to cover the crotch region positioned at the wearer's crotch in the worn state; An exterior body disposed so as to cover at least the front body region positioned around the wearer's abdomen and the back body region positioned around the wearer's back in the worn state, with at least both longitudinal ends of the interior body joined thereto; A pad holding sheet extending in the width direction on the skin side of the exterior body and the interior body, having a cutout at the width direction end thereof joined to the skin side of the exterior body and into which an absorbent pad used in combination and extending in the width direction can be inserted; An absorbent article comprising the above.

2. An end sheet further provided, extending from the interior body to the exterior body, joined to at least the exterior body, and having a non-adhesive portion non-adhesive to a skin side sheet covering the skin side of the interior body; The pad holding sheet is disposed on the non-skin side of the non-adhesive portion of the end sheet. The absorbent article according to claim 1.

3. An interior body including an absorber, disposed so as to cover the crotch region positioned at the wearer's crotch in the worn state; An exterior body disposed so as to cover at least the front body region positioned around the wearer's abdomen and the back body region positioned around the wearer's back in the worn state, with at least both longitudinal ends of the interior body joined thereto; An end sheet extending from the interior body to the exterior body, joined to at least the exterior body, having a non-adhesive portion non-adhesive to a skin side sheet covering the skin side of the interior body, extending in the width direction at the non-adhesive portion, and having a cutout into which an absorbent pad used in combination and not reaching the width direction end can be inserted; An absorbent article comprising the above.

4. The absorbent article according to claim 3, having a joining portion joining the exterior body and the end sheet on the outer side in the width direction of the width direction end of the cutout in a part of the non-adhesive portion.

5. The end sheet extends in the width direction and is joined to the exterior body and the interior body by a plurality of linear adhesive portions spaced apart from each other in the longitudinal direction, and the linear adhesive portion disposed on the innermost side in the longitudinal direction has a stronger adhesive force than the other linear adhesive portions. The absorbent article according to claim 3 or 4.

6. An interior body including an absorber, disposed so as to cover the crotch region positioned at the wearer's crotch in the worn state; ​ ​ ​ In the worn state, it is arranged to cover at least the front body region located around the wearer's torso on the abdominal side and the back body region located around the wearer's torso on the back side, and an outer wrapper body in which at least both longitudinal ends of the inner wrapper body are joined, a strong adhesive part that covers the outer side in the longitudinal direction of the inner wrapper body and the skin side of the outer wrapper body, extends in the width direction in a range facing the longitudinal ends of the absorber, and is firmly joined to the inner wrapper body and the outer wrapper body; a peelable part that is non-adhesive or weakly adhesive to the outer wrapper body in a range not overlapping with the absorber; and an end sheet that extends in the width direction in the peelable part and has a cut into which a combined absorbent pad can be inserted and that does not reach the end in the width direction, and an absorbent article comprising the same.

7. The outer wrapper body has both widthwise ends of the front body region and the back body region joined, and is joined to both longitudinal ends of the inner wrapper body, forming a body opening and a pair of leg openings, The absorbent article according to any one of claims 1, 3, and 6.

8. The cut is arranged on the back side during wearing, The absorbent article according to any one of claims 1, 3, and 6.

9. The cut is arranged on each of the ventral side and the dorsal side during wearing, The absorbent article according to any one of claims 1, 3, and 6.

10. The cut is convex with the central side in the width direction facing the longitudinal end side, The absorbent article according to any one of claims 1, 3, and 6.

11. At least one reinforcing part is provided on an extension line of the widthwise end of the cut, The absorbent article according to any one of claims 1, 3, and 6.

12. A plurality of the cuts are arranged at intervals from each other in the longitudinal direction, The absorbent article according to any one of claims 1, 3, and 6.

13. The length in the width direction of the cut is different from that of an adjacent cut, The absorbent article according to claim 12.

14. The cut is a perforation, The absorbent article according to any one of claims 1, 3, and 6.

15. A regulating part for suppressing separation of the perforation is provided on the widthwise end side of the extending region of the cut, The absorbent article according to claim 14.

Citation Information

Patent Citations

  • Absorbent article

    JP2016214405A