CN217510722U

CN217510722U - Absorbent pad

Info

Publication number: CN217510722U
Application number: CN202220875883.0U
Authority: CN
Inventors: 川上祐介; 高居义; 姚旭光; 吴晨
Original assignee: Unicharm Corp
Current assignee: Unicharm Corp
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-09-30
Anticipated expiration: 2032-04-15
Also published as: WO2023199683A1

Abstract

Provided is an absorbent pad which can be easily worn on a pants-type disposable diaper and underwear and which can reduce the uncomfortable feeling during wearing. In an absorbent pad (1) having an absorbent core (10), a skin side sheet (2), and a non-skin side sheet (3), at least in the central portion in the longitudinal direction and the width direction of the absorbent pad (1), the skin side sheet (2) is located at the position closest to the skin side, the non-skin side sheet (3) is located at the position closest to the non-skin side, the maximum thickness from the skin side surface of the skin side sheet (2) to the non-skin side surface of the non-skin side sheet (3) is 4.0mm or less in a state where the absorbent pad (1) is expanded and extended, and the maximum load in a pad compression test in which the absorbent pad (1) is compressed by abutting the end portion on the crotch side of the absorbent pad (1) folded in half at the folding position along the width direction against a test stand is 1.0N or more.

Description

Absorbent pad

Technical Field

The utility model relates to an absorbent pad.

Background

An absorbent pad to be worn on the inner side of a disposable diaper is known. In the absorbent pad disclosed in patent document 1, a pair of low basis weight regions along the longitudinal direction are provided in the central region in the longitudinal direction of the absorbent body. Therefore, the absorbent pad is easily attached to the wearer's crotch region by deforming the low basis weight region into a W-shape in a cross section along the width direction, which serves as a folding base point during wearing. Further, regions having lower rigidity than the central region are provided in front and rear of the central region in the longitudinal direction of the absorbent pad. Therefore, in the absorbent pad, the low stiffness region serves as a folding base point, and the cross section in the longitudinal direction is also deformed in a W-letter shape, thereby facilitating the curvature along the body.

Documents of the prior art

Patent literature

Patent document 1: japanese patent No. 6147882

SUMMERY OF THE UTILITY MODEL

Problem to be solved by utility model

As disposable diapers, tape-type diapers and pants-type diapers are known. Pants-type diapers are highly conformable and easily movable by a wearer, and therefore, the subjects wearing the pants-type diapers include light persons who need caregivers and who have passed normal daily lives. However, in order to replace (particularly wear) the underpants type diaper at a takeout destination or the like, it is troublesome to take off the pants, shoes, and the like. Therefore, by using the absorbent pad as disclosed in patent document 1 while being superposed on the inside of the pants-type diaper, the pants-type diaper can be used for a long period of time only by changing the absorbent pad, and the number of times of changing the pants-type diaper can be reduced.

However, in a state where pants and pants-type diapers are removed to the vicinity of the knees of a wearer without removing the pants and pants-type diapers, an absorbent pad must be inserted through a narrow waist opening of the diaper in order to wear a new absorbent pad on the inner side of the diaper. It is generally considered that the absorbent pad is folded in half in the longitudinal direction, and the pad is inserted into the diaper along the longitudinal direction. The same applies to the case where the absorbent pad is directly worn on underwear (underpants, pants).

Therefore, if a low basis weight region and a low stiffness region are provided in the absorbent body and the stiffness in the insertion direction (the longitudinal direction of the absorbent pad) is reduced as in the absorbent pad of patent document 1, the absorbent pad is easily bent when the absorbent pad is inserted into a diaper or underwear. In this way, the absorbent pad may not be smoothly inserted into the pants-type diaper or the underwear.

On the other hand, if the thickness is increased in order to increase the rigidity of the absorbent pad, there is also a problem that a feeling of discomfort is likely to occur during wearing.

In view of the above-described problems, it is an object of the present invention to provide an absorbent pad that can be easily worn on a pants-type disposable diaper or underwear and that can reduce a feeling of discomfort during wearing.

Means for solving the problems

The main means for achieving the above object is an absorbent pad having a longitudinal direction, a width direction and a thickness direction in a developed state, and having an absorbent core, a skin side sheet and a non-skin side sheet, characterized in that, at least in the longitudinal direction and in the width direction of the absorbent pad, the skin-side sheet is positioned on a skin-most side of the absorbent pad, the non-skin-side sheet is positioned on a non-skin-most side of the absorbent pad, in a state where the absorbent pad is expanded and extended, a maximum thickness from a skin-side surface of the skin-side sheet to a non-skin-side surface of the non-skin-side sheet is 4.0mm or less, and a maximum load in a pad compression test in which an end portion on a crotch side of the absorbent pad folded in two at a folding position in the width direction is pressed against a test stand to compress the absorbent pad is 1.0N or more.

Other features of the present invention will be apparent from the description of the present specification and the accompanying drawings.

Effect of the utility model

According to the present invention, an absorbent pad that can be easily worn on a pants-type disposable diaper or underwear and that can reduce discomfort during wearing can be provided.

Drawings

Fig. 1 is a plan view of the absorbent pad 1 in an unfolded and stretched state as viewed from the skin surface side.

Fig. 2 is a plan view of the absorbent pad 1 in an expanded and stretched state, as viewed from the non-skin surface side.

Fig. 3 is a schematic sectional view of the absorbent pad 1 at the center line CL of fig. 1.

Fig. 4 is a diagram showing a state in which the pad 1 is inserted into the pants-type diaper 40.

Fig. 5A to 5D are explanatory diagrams of the pad compression test.

Fig. 6 is an explanatory diagram of the arrangement of the engaging member 20 and the compression portion 30.

Fig. 7 is an explanatory diagram of the arrangement of the engaging member 20 and the compression portion 30.

Fig. 8 is an explanatory diagram of the maximum thickness T1 of the mat 1.

Description of the reference numerals

1. An absorbent pad; 2. a skin side sheet; 3. a non-skin side sheet; 4. a side sheet (sheet); 5. a leg elastic member; 6. a leakage preventing wall portion; 7. a leakage preventing wall elastic member; 10. an absorbent core; 20. an engaging member; 30. a compression section; 31. a1 st compression section; 32. a2 nd compression part (long compression part); 40. pants-type diapers (outerwear members); 50. a testing machine; 51. 52, a grip portion; 53. a clamp; 531. a plate member (test stand).

Detailed Description

At least the following matters will be made clear from the description of the present specification and the drawings.

An absorbent pad having a longitudinal direction, a width direction and a thickness direction in an unfolded state, and having an absorbent core, a skin side sheet and a non-skin side sheet, characterized in that, at least in the longitudinal direction and in the width direction of the absorbent pad, the skin-side sheet is positioned on a skin-most side of the absorbent pad, the non-skin-side sheet is positioned on a non-skin-most side of the absorbent pad, in a state where the absorbent pad is expanded and extended, a maximum thickness from a skin-side surface of the skin-side sheet to a non-skin-side surface of the non-skin-side sheet is 4.0mm or less, and a maximum load in a pad compression test in which an end portion on a crotch side of the absorbent pad folded in two at a folding position in the width direction is pressed against a test stand to compress the absorbent pad is 1.0N or more.

According to such an absorbent pad, since the rigidity in the longitudinal direction in the folded state is high, the absorbent pad is not easily bent when inserted into an outer cover such as a pants-type diaper or underwear, and can be smoothly inserted, and the absorbent pad can be easily worn on the outer cover. Further, although the rigidity in the longitudinal direction in the folded-in-half state is high, since the maximum thickness T1 of the absorbent pad is 4.0mm or less, the uncomfortable feeling during wearing can be reduced even if the outer cover is worn in a superposed manner.

An absorbent pad, wherein, in a state in which the absorbent pad is unfolded and extended, a maximum length of the absorbent pad in the longitudinal direction is 600mm or less, and a maximum width of the absorbent pad in the width direction is 210mm or less.

According to such an absorbent pad, the absorbent pad can be easily inserted from the narrow waist opening of the outer cover because the planar size is small. In addition, the absorbent pad has a small planar size, but has high rigidity in the longitudinal direction in the folded state, and therefore, when the absorbent pad is inserted into the outer sheath, the absorbent pad is not easily folded and can be smoothly inserted. Further, since the absorbent pad has a small planar size, the wearer can feel less uncomfortable even if wearing the outer cover in a superposed manner.

An absorbent pad, wherein the absorbent core is not narrowed inward in the width direction at a central portion in the longitudinal direction of the absorbent pad including the folded position.

According to such an absorbent pad, since the width of the absorbent core is increased at the fold back portion of the absorbent pad, the force applied to the absorbent core is dispersed over the entire width of the absorbent core when the absorbent pad is inserted into the outerwear. Therefore, the absorbent pad is less likely to be bent, and the absorbent pad can be smoothly inserted into the sheath.

An absorbent pad, wherein the absorbent core has a compression section that compresses the absorbent core in the thickness direction.

According to such an absorbent pad, since the rigidity of the absorbent pad is improved by the compression portion, the maximum load in the pad compression test can be set to 1.0N or more. Further, the maximum thickness of the absorbent pad can be set to 4.0mm or less while maintaining the absorption performance.

An absorbent pad, wherein the compression section has a pair of elongated compression sections extending longer in the longitudinal direction than in the width direction at both side sections of the absorbent core in the width direction.

According to such an absorbent pad, the rigidity in the longitudinal direction of the absorbent pad in the folded state can be improved, and the absorbent pad is less likely to be bent when the absorbent pad is inserted into the outer sheath, and can be smoothly inserted. Further, the long compressed portion serves as a bending start point, and both side portions in the width direction of the absorbent pad easily rise toward the skin side and easily follow the crotch portion of the wearer, so that the uncomfortable feeling during wearing can be reduced.

An absorbent pad, wherein an engaging member for engaging the absorbent pad with an exterior member is provided on a non-skin side surface of the absorbent pad, and the engaging member is located on the inner side in the width direction than the pair of elongated compressed portions.

According to such an absorbent pad, when the side portions in the width direction of the absorbent pad are raised toward the skin side from the long compressed portions as starting points, the partial peeling of the engagement member from the exterior member can be suppressed, and the positional displacement of the absorbent pad with respect to the exterior member can be suppressed. Further, since the length of the joining member in the width direction is short, a wide portion of the joining member can be covered with the wearer's hand when the absorbent pad is inserted into the outer cover.

An absorbent pad, wherein an engaging member for engaging the absorbent pad with an exterior member is provided on a non-skin side surface of the absorbent pad, and wherein all of the engaging member in the width direction is housed in a central portion of the absorbent pad divided into three parts in the width direction at its maximum width.

According to such an absorbent pad, the length of the joining member in the width direction is short, and therefore, when the absorbent pad is inserted into the outer cover, a wide portion of the joining member can be covered with the wearer's hand.

An absorbent pad characterized in that the absorbent pad has a pair of leg-surrounding elastic members provided along the longitudinal direction so as to make the absorbent pad follow the leg-surrounding of a wearer and/or a pair of leakage preventing wall elastic members provided along the longitudinal direction so as to make the leakage preventing wall portions stand up toward the skin side, at both side portions in the width direction.

According to such an absorbent pad, in a natural state of being folded in two, both side portions in the width direction of the absorbent core contract in the longitudinal direction, and the rigidity is improved. Therefore, when the absorbent pad is inserted into the outer cover, the absorbent pad is not easily bent, and the absorbent pad can be smoothly inserted.

An absorbent pad, wherein the absorbent pad has a sheet that forms side edges of the absorbent pad in the width direction and that is folded back inward in the width direction from a position on the non-skin side of the absorbent core toward a position on the skin side of the absorbent core so as to tuck the side edges of the absorbent core in the width direction.

According to such an absorbent pad, the absorbent core can be disposed over substantially the entire region of the absorbent pad in the width direction, and the rigidity can be improved over substantially the entire region of the absorbent pad in the width direction. Further, by folding back the sheet, the number of layers of the material of the side portions in the width direction of the absorbent pad is increased, and the rigidity of the side portions in the width direction of the absorbent pad is improved. Therefore, when the absorbent pad is inserted into the outer cover, the absorbent pad is not easily bent, and the absorbent pad can be smoothly inserted.

An absorbent pad, wherein a pair of the sheets are provided on both side portions of the absorbent pad in the width direction, the pair of sheets are disposed so as to be separated in the width direction on a non-skin side of the absorbent pad, the absorbent core has a pair of long compressed portions which are compressed portions obtained by compressing the absorbent core in the thickness direction, the pair of long compressed portions extend longer in the longitudinal direction than in the width direction on both side portions of the absorbent core in the width direction, and the long compressed portions are located on the inner side in the width direction than the sheets on the non-skin side of the absorbent pad.

According to such an absorbent pad, since the number of materials laminated in the long compressed portion is small, both side portions in the width direction of the absorbent pad easily rise toward the skin side with the long compressed portion as a bending start point. Therefore, the absorbent pad can easily follow the crotch of the wearer, and discomfort during wearing can be reduced.

An absorbent pad, wherein a joining member for joining the absorbent pad to a casing member is provided on a non-skin side surface of the absorbent pad, the absorbent core has a pair of long compressed portions which are compressed portions obtained by compressing the absorbent core in the thickness direction, the pair of long compressed portions extend in the longitudinal direction at both side portions of the absorbent core in the width direction and are longer than those in the width direction, and the long compressed portions are provided at positions closer to a crotch side than the outer end of the joining member in the longitudinal direction in a state where the absorbent pad is expanded and extended.

According to such an absorbent pad, the joining member is provided in the region of the absorbent pad that is more easily bent at the outer side in the longitudinal direction than the long compressed portion. Therefore, the easily bendable region of the absorbent pad is firmly joined to the exterior member by the joining member, and the occurrence of undesired bending during wearing of the absorbent pad can be suppressed, so that the uncomfortable feeling during wearing can be reduced.

An absorbent pad, characterized in that the absorbent pad has a liquid-impermeable leakage-preventing layer at a position closer to the non-skin side than the absorbent core, and the dynamic friction coefficient of the non-skin side surface of the non-skin side sheet is higher than the dynamic friction coefficient of the skin side surface of the leakage-preventing layer.

According to such an absorbent pad, the non-skin-side surface of the absorbent pad is less likely to slide on the inner side surface of the outer cover, and the positional displacement of the absorbent pad with respect to the outer cover during wearing can be suppressed, thereby reducing the uncomfortable feeling.

Embodiments of the present invention are described in detail below with reference to the accompanying drawings

Hereinafter, an absorbent pad of the present invention is exemplified as an absorbent pad to be used in combination with a pants-type disposable diaper for adults. However, the present invention is not limited to this, and the absorbent pad of the present invention may be used alone by being directly placed inside underwear (underpants, shorts) of a wearer. Further, the disposable diaper may be used by being disposed inside a tape-type disposable diaper or a disposable diaper for children.

< basic structure of absorbent pad 1 >)

Fig. 1 is a plan view of the absorbent pad 1 in an unfolded and stretched state as viewed from the skin surface side. Fig. 2 is a plan view of the absorbent pad 1 in an unfolded and stretched state as viewed from the non-skin surface side. Fig. 3 is a schematic sectional view of the absorbent pad 1 at the center line CL of fig. 1.

The absorbent pad 1 (hereinafter also simply referred to as "pad") has a rectangular planar shape in its developed state, and has a longitudinal direction, a width direction, and a thickness direction that are orthogonal to each other. The longitudinal direction is along the front-back direction from the abdomen side to the back side of the wearer when the pad 1 is worn. In the thickness direction, the side in contact with the skin of the wearer is referred to as the skin surface side or the skin side, and the opposite side is referred to as the non-skin surface side or the non-skin side. Since the pad 1 of the present embodiment has a structure symmetrical in the longitudinal direction, any one side in the longitudinal direction of the pad 1 can correspond to the ventral side of the wearer. Unlike a belt-type or pants-type diaper, the pad 1 is worn without one end portion and the other end portion in the longitudinal direction being connected to each other along the waistline of the wearer.

In the present specification, the expanded state of the mat 1 refers to a state in which the entire mat 1 is expanded in a planar manner. The extended state of the pad 1 is a state in which the pad 1 is extended to such an extent that wrinkles generated in the pad 1 are not substantially visually recognized, and is a state in which the pad 1 is extended to such a length that the dimension of each member (for example, a side sheet 4 described later) constituting the pad 1 is matched with or close to the dimension of the member alone.

As shown in fig. 3, the pad 1 includes an absorbent core 10, a liquid-permeable skin side sheet 2 (e.g., nonwoven fabric or the like) provided on the skin side of the absorbent core 10, a non-skin side sheet 3 provided on the non-skin side of the absorbent core 10, and a pair of side sheets 4 provided on both side portions in the width direction of the pad 1. The non-skin side sheet 3 of the present embodiment is a sheet having a two-layer structure in which a nonwoven fabric is laminated to a liquid-impermeable resin film such as polyethylene or polypropylene from the non-skin side by lamination. The pair of side sheets 4 are folded back inward in the width direction from the non-skin-side surface of the non-skin side sheet 3 toward the skin-side surface of the skin side sheet 2 so as to wrap the absorbent core 10.

As the absorbent core 10, a structure in which liquid absorbent fibers such as pulp fibers containing SAP (super absorbent polymer) are formed into a predetermined shape can be exemplified. The absorbent core 10 illustrated in fig. 3 has a skin-side surface covered with the upper core wrap 11A and a non-skin-side surface covered with the lower core wrap 11B. Both side portions in the width direction of the lower core wrap 11B are folded back inward in the width direction on the skin-side surface of the upper core wrap 11A so as to wrap the absorbent core 10. However, without being limited thereto, the absorbent core 10 may not be covered with the core wrap. Examples of the absorbent core 10 include an SAP sheet in which an SAP layer is attached to a hydrophilic sheet, an air-laid sheet in which liquid absorbent fibers are formed into a sheet by an air-laid method, and the like.

The pad 1 has a pair of leg-surrounding elastic members 5 provided along the longitudinal direction on both sides in the width direction. As shown in fig. 3, the leg hole elastic members 5 are fixed in an extended state along the longitudinal direction between the lower core wrap 11B and the non-skin side sheet 3. This makes it easy for both side portions of the pad 1 in the width direction to be closely attached along the leg circumferences of the wearer, and leakage from the leg circumferences can be suppressed. The position of the leg elastic members 5 is not limited to the position shown in fig. 3, and may be, for example, between the non-skin side sheet 3 and the side sheet 4 positioned on the non-skin side of the non-skin side sheet 3.

The pad 1 has a pair of leakage preventing wall portions 6 that can rise toward the skin on both sides in the width direction. The leakage preventing wall portion 6 is formed by the side sheet 4 and the leakage preventing wall elastic member 7. The leakage preventing wall elastic member 7 is fixed to the inner end in the width direction of the side sheet 4 in an extended state along the longitudinal direction of the pad 1. As shown in fig. 1, the side sheet 4 is fixed to the skin side sheet 2 from one end to the other end in the longitudinal direction thereof by an adhesive region a1, and both ends in the longitudinal direction of the side sheet 4 are fixed to the skin side sheet 2 by adhesive regions a2 at positions inward in the width direction of the adhesive region a 1. Therefore, the portions of the side sheets 4 on the inner side of the adhesive regions a1 and a2 stand up toward the skin side as the leakage preventing wall portions 6 by contraction of the leakage preventing wall elastic members 7. The leakage preventing wall 6 can suppress the side leakage of excrement.

Further, a joining member 20 for joining the pad 1 to the inner side surface of the underwear (outer cover) or the pants-type diaper 40 is provided on the non-skin side surface of the pad 1. As shown in fig. 2, joining members 20 are provided at both ends of the pad 1 in the longitudinal direction, respectively. The joining member 20 is a rectangular member, and the long side thereof is provided along the width direction of the pad 1. The engagement member 20 is preferably a member that can be peeled off from the inner side surface of the outer jacket member without damaging the outer jacket member and can be engaged again. The engaging member 20 of the present embodiment is a tape having a hook member (e.g., a male member of a hook and loop fastener). Further, as the joining member 20, a tape coated with an adhesive or the like can be exemplified. In addition, the shape, number, and arrangement of the engaging members 20 are not limited to those shown in fig. 2. For example, the joining member 20 may be provided only at one end in the longitudinal direction of the mat 1, or the joining member 20 may not be provided in the mat 1.

The basic structure of the pad 1 has been described above, but the structure of the pad 1 is an example and is not limited thereto. For example, the planar shape of the pad 1 may be asymmetrical in the longitudinal direction, and the leg hole elastic members 5 and the leakage preventing wall portions 6 may not be provided.

Wearability of the pad 1

Fig. 4 is a diagram showing a state in which the pad 1 is inserted into the pants-type diaper 40. Fig. 5A to 5D are explanatory diagrams of the pad compression test. Fig. 6 and 7 are explanatory views of the arrangement of the engaging member 20 and the compression portion 30. Fig. 6 and 7 are views showing the non-skin side surface of the mat 1. In fig. 1 to 3, the compression unit 30 is omitted for simplification of the drawings. Fig. 8 is an explanatory diagram of the maximum thickness T1 of the mat 1.

As shown in fig. 4, the pad 1 is disposed on the inner side of a pants-type disposable diaper 40 (hereinafter also referred to as "pants-type diaper"), and can be used in combination with the pants-type diaper 40. The pant diaper 40 has high fit and is easily moved by the wearer. Therefore, the wearing subjects of the pants-type diapers 40 include light caregivers and people who have passed normal daily lives. However, when the pants-type diapers 40 are replaced at a destination, it is troublesome to take off the pants, shoes, and the like, particularly when the pants-type diapers 40 are worn. Therefore, the pad 1 is used while being overlapped on the inner side of the pants-type diaper 40, and the pants-type diaper 40 can be used for a long period of time by replacing only the pad 1. Therefore, the number of times the pants-type diaper 40 must be replaced by removing pants and the like can be reduced, and the wearer can easily go out.

The following method is generally assumed when the pad 1 is worn without removing pants or pants-type diapers 40. First, as shown in fig. 4, in a state where the wearer sits on a toilet or stands, the wearer himself or a caregiver drops the pants-type diaper 40 to the vicinity of the knees of the wearer. Then, the pad 1 is folded in two in the longitudinal direction so that the skin-side surface of the pad 1 becomes the inner side, and the pad is inserted from the waistline opening BH of the pants-type diaper 40 in the longitudinal direction. Then, after the crotch portion of the pad 1 comes into contact with the crotch portion of the pants-type diaper 40, the wearer or caregiver opens the pad 1 folded in two to the front and rear of the wearer, so that the non-skin side surface of the pad 1 is along the inner side surface of the pants-type diaper 40. When the pad 1 has the joining member 20, the joining member 20 is joined to the inner side surface of the pants-type diaper 40. This puts the pad 1 on the inside of the pants-type diaper 40.

In the above case, the pad 1 must be inserted from the narrow waistline opening BH of the pants-type diaper 40. When the pad 1 is worn directly on underwear (underpants, shorts), the pad 1 is inserted from the narrow waist opening of the underwear in the same manner. Therefore, the lower end portion (folded portion folded in two) of the pad 1 easily comes into contact with the inner side surfaces of the pants-type diaper 40 and underwear.

Therefore, in the pad 1 of the present embodiment, the rigidity in the longitudinal direction (insertion direction) of the pad 1 folded in two at the folded position FP along the width direction is set high. Specifically, the maximum load in the "pad compression test" in which the crotch side end portion of the pad 1 folded in two at the folded position FP in the width direction is abutted against the test stand to compress the pad 1 is 1.0N or more. The pad compression test (fig. 5A to 5D) is a test simulating a process of inserting the pad 1 into the pants-type diaper 40 or underwear (hereinafter, also referred to as "outer wear").

Assuming that the maximum load required to compress the mat 1 in the mat compression test is set to be less than 1.0N, the rigidity in the longitudinal direction of the mat 1 in the folded-in-half state is set to be low. When the pad 1 comes into contact with the inner side surface of the pants-type diaper 40 or underwear, the pad 1 may be bent and the pad 1 may not be smoothly inserted. In addition, the pad 1 is worn in a state where an undesired bending of the pad 1 is generated, with the result that there is a risk that: a gap is generated to cause leakage or wearing comfort is lowered.

In contrast, in the pad 1 of the present embodiment, the maximum load (in other words, "rebound force at the time of compression") required to compress the pad 1 in the pad compression test is 1.0N or more, and the rigidity in the longitudinal direction of the pad 1 in the double-folded state is high. Therefore, in the pad 1 of the present embodiment, when inserted from the narrow waistline opening of the outer cover, the pad 1 is less likely to bend even if coming into contact with the outer cover, and the pad 1 can be smoothly inserted, as compared with the case where the maximum load of the pad 1 in the pad compression test is less than 1.0N. Further, since the pad 1 is not easily bent, it is possible to prevent the pad 1 from being worn in a state where the pad 1 is undesirably bent. That is, the pad 1 can be appropriately worn, so that discomfort during wearing can be reduced or leakage of excrement can be prevented.

The pad 1 is normally circulated in a state in which the skin side surface is folded compactly inward. As shown in fig. 1 and the like, in the pad 1 of the present embodiment, a center line CL bisecting the pad 1 in the longitudinal direction is set as a folding position FP at the time of packaging. That is, the mats 1 are each or a plurality of them are packed in a package in a state of being folded in half at the center line CL. In this case, the folded position FP at the time of packaging is set as a "folded position along the width direction" at which the mat 1 is folded in two for performing the mat compression test. That is, the pad compression test was performed in a state where the pad 1 was taken out from the package.

However, the present invention is not limited to the above, and for example, the pad 1 may be wrapped in a package in a state where the pad 1 is folded in three in the longitudinal direction, and in a state where both side portions in the width direction of the pad 1 are folded inward in the width direction and then the pad 1 is folded in two in the longitudinal direction. In this case, in the pad compression test, the pad 1 taken out of the package is entirely spread out in a flat state, the fold is stretched, and then the pad 1 is folded in two at the center line CL bisecting in the longitudinal direction. That is, the pad compression test is performed with the center line CL bisecting the pad 1 in the longitudinal direction set to the "folded position in the width direction" instead of the folded position at the time of packaging.

Next, the method of the "pad compression test" will be explained.

First, as shown in fig. 5A, the pad 1 is folded in half in the longitudinal direction at the above-described "folded position in the width direction" so that the skin-side surfaces of the pad 1 face each other. The length "a (mm)" in the longitudinal direction of the absorbent core 10 in a folded state is measured using a ruler or the like.

Next, as the tester 50, a model 3343 compression tester manufactured by Instron Japan ltd., or a tester equivalent thereto was prepared. As shown in fig. 5B, the jig 53 is placed on the lower grip portion 52 of the upper and lower pair of

grip portions

51, 52. The jig 53 has a T-shaped cross section when viewed from the side, and includes a plate member 531, and the plate member 531 includes a horizontal surface facing the upper grip portion 51. As shown in fig. 5D, the horizontal plane of the plate member 531 has an area of a degree of contact with the entirety of the folded pad 1. The plate member 531 is 5mm thick and made of a material that is not easily bent, such as metal. In addition, the interval in the up-down direction from the upper grip portion 51 to the horizontal surface of the plate member 531 is set to "a-45 mm".

Next, as shown in fig. 5C, the pad 1 is placed on the upper grip 51 so that the longitudinal direction of the pad 1 is along the vertical direction of the testing machine 50. At this time, a position shifted from the upper end of the absorbent core 10 toward the crotch side by 50mm and a position of the lower end of the grip portion 51 are aligned, and the respective widthwise central positions of the absorbent core 10 and the grip portion 51 are aligned. The upper grip portion 51 utilizes the following sized grip portions: the width W1 is 50mm, and the length WA in the vertical direction is 25 mm. The grip portion 51 having a grip width W1 of the grip portion 51 in a range of 20% to 45% of the maximum width W2 of the absorbent core 10. Thus, the crotch-side end of the pad 1 is separated upward by 5mm from the plate member 531 (test bed) of the jig 53. This state is set as an initial state.

From the above initial state, the interval between the upper grip portion 51 and the lower grip portion 52 was narrowed to "a/2 mm" at a constant speed of 300mm/min, and the interval in the vertical direction from the upper grip portion 51 to the horizontal surface of the plate member 531 was set to "a/2-45 mm". Thereby, the crotch-side end portion (folded portion folded in two) of the cushion 1 abuts against the plate member 531 (test bed), and the cushion 1 is compressed in the longitudinal direction thereof as shown in fig. 5D. The speed of the pad 1 against the plate member 531 is also set to a speed of 300 mm/min. In addition, the maximum value measured from the initial state to the compressed state shown in fig. 5D was set as the maximum load in the pad compression test.

By setting the maximum load of the mat 1 in the mat compression test to 1.0N or more in this way, the mat 1 can be easily inserted into the outer sleeve. However, if only the thickness of the pad 1 is simply increased in order to increase the rigidity of the pad 1 in the longitudinal direction, the pad tends to be stiff during wearing, and gives a wearer a feeling of discomfort.

Therefore, in the pad 1 of the present embodiment, as shown in fig. 3 and 8, the maximum thickness T1 from the skin-side surface of the skin-side sheet 2 to the non-skin-side surface of the non-skin side sheet 3 is set to 4.0mm or less in a state where the pad 1 is unfolded and stretched.

Thus, the pad 1 is less likely to be stiff during wearing, and discomfort during wearing can be reduced, as compared with the case where the maximum thickness T1 of the pad 1 is larger than 4.0 mm. In particular, in the case where the pad 1 is used in a state where the pants-type diaper 40 is stacked on the pad 1, the wearer can easily feel the thickness of the two absorbent cores, but discomfort during wearing can be reduced by setting the maximum thickness T1 of the pad 1 to 4.0mm or less.

As described above, in the pad 1 of the present embodiment, since the rigidity in the longitudinal direction in the folded-in state is high, it is easy to wear the outer cover, and since the maximum thickness T1 is 4.0mm or less, it is possible to reduce the uncomfortable feeling during wearing.

Further, the maximum thickness T1 is set to a thickness excluding the side sheet 4. That is, the skin-side sheet 2 is a sheet mainly forming the skin-side surface of the pad 1, and is a sheet having a central portion in the width direction and in the longitudinal direction of the pad 1 at least at a position closest to the skin side of the pad 1. The non-skin side sheet 3 is a sheet mainly forming the non-skin side surface of the pad 1, and is a sheet having a central portion in the width direction and in the longitudinal direction of the pad 1 at least at a position closest to the non-skin side of the pad 1.

The maximum thickness T1 of pad 1 is measured as follows. First, as shown in FIG. 6 and the likeThe mat 1 is brought into an unfolded and elongated state. Then, one or more (preferably a plurality of) measurement portions that do not overlap with the side sheet 4, the folded position at the time of packaging, and the later-described compressed portion 30 are determined. Specifically, a position separated by about 20mm from the folded position at the time of packaging is preferably determined as the measurement portion. In addition, in the case where the thicknesses (weights per unit area) are different due to the difference in the planar position of the absorbent core 10, the measurement site is determined in the region where the thickness is high. Then, the thickness from the skin-side surface of the skin-side sheet 2 of the pad 1 to the non-skin-side surface of the non-skin side sheet 3 was measured using a device for measuring the thickness (for example, PEACOCK DIAL THICKNESS GAUGE diameter 50mm model T06795, or a device equivalent thereto), and the result was set as the maximum thickness T1. The load at the time of thickness measurement was set to 10. + -. 5gf/cm ² (981. + -. 491 Pa). When the thicknesses of a plurality of portions are measured, the average value thereof is set as the maximum thickness T1.

Further, if simply increasing the planar size of the pad 1 in order to increase the rigidity of the pad 1 in the longitudinal direction in the folded-in-half state, a feeling of discomfort is likely to occur during wearing. Therefore, in a state where the mat 1 is expanded and stretched, the maximum length L (see fig. 1) of the mat 1 in the longitudinal direction is preferably 600mm or less, and the maximum width W of the mat 1 in the width direction is preferably 210mm or less.

Thus, the pad 1 has a smaller planar size and is less likely to be stiff during wearing, and discomfort can be reduced, as compared with the case where the maximum length L of the pad 1 is larger than 600mm and the maximum width W is larger than 210 mm. In addition, when the pants-type diaper 40 has a leakage-proof wall portion, the pad 1 can be easily stored inside the leakage-proof wall portion, and leakage from the pants-type diaper 40 can be suppressed.

In addition, even if the planar size of the pad 1 is small, the pad 1 of the present embodiment is easily inserted into the outer member because the maximum load in the pad compression test is set to 1.0N or more. Further, by making the planar size of the pad 1 small, the pad 1 can be more easily inserted from the narrow waistline opening of the outer cover.

However, the maximum length L of the mat 1 may be larger than 600mm, and the maximum width W of the mat 1 may be larger than 210 mm.

In the pad 1 of the present embodiment, the compression section 30 is provided in the absorbent core 10 so that the maximum load in the pad compression test becomes 1.0N or more and the maximum thickness T1 becomes 4.0mm or less. As shown in fig. 8, the compression section 30 is a section obtained by compressing the absorbent core 10 in the thickness direction. In the compressed part 30, the thickness of the absorbent core 10 is smaller than that of the surroundings, and the fiber density constituting the absorbent core 10 is higher. These points can be confirmed visually or by observing a cross section obtained by cutting the absorbent core 10 in the thickness direction with an electron microscope or the like.

The absorbent core 10 is locally depressed in the compression section 30, and thus the thickness of the portion other than the compression section 30 is also reduced as compared with the case where the absorbent core 10 does not have the compression section 30. In addition, since the thickness of the absorbent core 10 becomes small, the maximum thickness T1 of the pad 1 also becomes small. Therefore, the maximum thickness T1 of the pad 1 can be set to 4.0mm or less while maintaining the absorption performance without reducing the weight per unit area of the fibers constituting the absorbent core 10.

In addition, the fiber density constituting the absorbent core 10 is locally increased in the compression section 30, whereby the rigidity of the entire absorbent core 10 is improved. This also improves the rigidity of the entire pad 1, and the maximum load in the pad compression test can be set to 1.0N or more.

In the compression section 30, at least a part in the thickness direction of the absorbent core 10 may be compressed. Fig. 8 illustrates the compression section 30 in which only the absorbent core 10 is compressed from the skin side, but the present invention is not limited thereto. For example, the absorbent core 10 may be compressed from the non-skin side, or the absorbent core 10 may be compressed together with the skin side sheet 2 and the non-skin side sheet 3.

Specifically, the pad 1 includes a1 st compressed part 31 provided over the entire planar region of the absorbent core 10, and a pair of 2 nd compressed parts 32 (long compressed parts) provided on both sides in the width direction of the absorbent core 10. The 1 st compressed part 31 is a compressed part in which a plurality of linear compressed parts that meander in the width direction and extend long in the longitudinal direction are arranged in the width direction. The 2 nd compression part 32 is a linear compression part extending longer in the longitudinal direction than in the width direction.

By providing a pair of the 2 nd compression parts 32 extending long in the longitudinal direction of the pad 1 on both sides in the width direction of the absorbent core 10, the 2 nd compression parts 32 having high rigidity function as support rods. Therefore, the rigidity in the longitudinal direction of the pad 1 in the folded-in-half state can be improved. Therefore, when the pad 1 is inserted into the outer sheath member, the pad 1 is not easily bent, and the pad 1 can be smoothly inserted.

In addition, when the pad 1 is worn, the pair of 2 nd compressed parts 32 become bending starting points, and both side portions in the width direction of the pad 1 easily rise toward the skin side. That is, the cross-sectional shape of the sheet taken along the width direction is bowl-shaped, and thus easily follows the crotch of the wearer. This can reduce the uncomfortable feeling during wearing and can suppress the side leakage of the excretory fluid.

As shown in fig. 3, a pair of side sheets 4 (sheet materials) forming the leakage preventing wall portions 6 are provided on both sides in the width direction of the pad 1. The pair of side sheets 4 are disposed on the non-skin side surface of the pad 1 so as to be separated in the width direction. In this case, as shown in fig. 7, the 2 nd compressed part 32 is preferably located on the non-skin-side surface of the pad 1 on the inner side in the width direction than the side sheet 4.

Thus, the number of materials laminated on the 2 nd compressed part 32 is reduced, and the thickness of the 2 nd compressed part is reduced, so that both side parts in the width direction of the pad 1 easily rise toward the skin side with the 2 nd compressed part 32 as a bending start point. In addition, in comparison with the case where the side sheet 4 on the non-skin-side surface is fixed by the 2 nd compressed part 32, it is less likely that tension is applied to the side sheet 4 when both side portions in the width direction of the pad 1 stand up. This also makes it easy for both side portions of the mat 1 in the width direction to rise. Therefore, the pad 1 is easily fitted along the crotch of the wearer, and can reduce the uncomfortable feeling during wearing and suppress the side leakage of excretory fluid.

The compression portions 30 illustrated in fig. 6 are examples, and the shape, number, and arrangement of the compression portions 30 are not limited to these. The 1 st compression part 31 and the 2 nd compression part 32 may be compression parts in which a plurality of dot-shaped compression parts are linearly arranged, or groove-shaped compression parts in which the absorbent core 10 is continuously depressed. Further, a plurality of dot-shaped compression parts may be arranged discretely. In the 1 st and 2 nd compressing parts 31 and 32, the depth of the recess may be different or the same. The absorbent core 10 may have one of the 1 st compressed part 31 and the 2 nd compressed part 32.

Further, the plane of the absorbent core 10 may be compressed to the same extent as the whole plane of the absorbent core 10 (so-called flat pressing) without locally compressing the plane of the absorbent core 10. In this case, as compared with the case where the flat pressing is not performed, the maximum thickness T1 of the pad 1 can be reduced while maintaining the same absorption performance, and the rigidity in the longitudinal direction of the pad 1 in the folded-in-half state can be improved.

As shown in fig. 6, the planar shape of the absorbent core 10 is a rectangular shape. In this way, it is preferable that the absorbent core 10 is not narrowed inward in the width direction at the central portion in the longitudinal direction of the pad 1 including the folded position FP where the pad 1 is folded in two in the longitudinal direction. In this case, the width of the absorbent core 10 is wider at the lower end portion of the pad 1 (folded position FP folded in two) when the pad 1 is inserted into the outer sheath than in the case where the absorbent core 10 is narrowed inward in the width direction. Therefore, the force applied to the absorbent core 10 when the pad 1 is in contact with the outer sheath is not locally applied to the narrow width of the absorbent core 10 but is dispersed over the wide width of the absorbent core 10. Therefore, when the pad 1 is inserted into the outer sheath member, the pad 1 is not easily bent, and the pad 1 can be smoothly inserted. In addition, even when the width of the pad 1 is made small in order to easily wear the pad 1 on the outer cover, the width of the absorbent core 10 can be made as wide as possible, and the absorption performance can be secured, so that leakage is less likely to occur.

The planar shape of the absorbent core 10 is not limited to a rectangular shape, and may be, for example, a rounded corner portion or a substantially rectangular shape in which the end portion in the longitudinal direction of the absorbent core 10 is convexly curved. Further, notched portions formed by partially cutting out side portions in the width direction of the absorbent core 10 may be provided in front and rear of the central portion in the longitudinal direction of the pad 1.

As described above (see fig. 1 to 3), the pad 1 has a pair of leg hole elastic members 5 on both sides in the width direction, and the pair of leg hole elastic members 5 are provided along the longitudinal direction so that the pad 1 is along the leg hole of the wearer. The pad 1 has a pair of leakage preventing wall elastic members 7 on both sides in the width direction, and the pair of leakage preventing wall elastic members 7 are provided along the longitudinal direction so that the leakage preventing wall portions 6 stand up toward the skin side. In the pad 1 in a natural state folded in two, both side portions in the width direction of the absorbent core 10 are contracted in the longitudinal direction by the leg-surrounding elastic members 5 and the leakage preventing wall elastic members 7.

It is therefore preferable that the pad 1 has the leg-surrounding elastic members 5 and/or the leakage preventing wall elastic members 7. As a result, the density of both side portions in the width direction of the absorbent core 10 is increased, and the rigidity is improved, as compared with the case where the leg-surrounding elastic members 5 and the leakage-preventing wall elastic members 7 are not provided. Therefore, when the pad 1 is inserted into the outer sheath member, the pad 1 is not easily bent, and the pad 1 can be smoothly inserted. The leg hole elastic members 5 and the leakage preventing wall elastic members 7 may be linear elastic members as shown in the figure or sheet-like elastic members.

As shown in fig. 6, the engaging member 20 that engages the mat 1 with the outer sleeve is preferably located on the inner side in the width direction than the pair of 2 nd compressed parts 32. In detail, the joining member 20 is preferably located further inward in the width direction than the inner end in the width direction of the 2 nd compressed part 32.

If the engaging member 20 overlaps the 2 nd compressed portion 32 or extends to the outer side in the width direction than the 2 nd compressed portion 32, a part of the engaging member 20 is peeled off from the exterior member when the side portion in the width direction of the pad 1 rises toward the skin side from the 2 nd compressed portion 32 as a starting point. Due to the peeled portion, other portions of the engagement member 20 may also become easily peeled off from the outer jacket member. Therefore, by providing the engaging member 20 at a position further inward in the width direction than the 2 nd compressed portion 32, the state in which the entire region of the engaging member 20 is engaged with the outer sleeve is easily maintained, and the positional displacement of the pad 1 with respect to the outer sleeve can be suppressed. Conversely, the rising of the side portion of the pad 1 in the width direction from the 2 nd compressed portion 32 can be prevented from being hindered by the joining member 20.

In the above case, the length W3 in the width direction of the joining member 20 is shorter than in the case where the joining member 20 overlaps the 2 nd compressed part 32 or extends outward in the width direction than the 2 nd compressed part 32. Thus, as shown in fig. 4, upon insertion of the pad 1 into the casing member, a wider portion of one of the pair of engagement members 20 is covered by the hand of the wearer of the pad 1. Therefore, it is possible to suppress the engagement of the engagement member 20 to an undesired position of the outer sleeve member during the insertion of the pad 1, and to smoothly insert the pad 1.

When the pad 1 is expanded and extended, and is divided into three parts in the width direction at its maximum width, as shown in fig. 7, a center part 1C in the width direction is defined between the pair of side parts 1S. Preferably, the entire width direction of the joining member 20 is accommodated in the central portion 1C without extending to the side portions 1S. In this case, the length W3 in the width direction of the joint member 20 is also short. Thus, upon insertion of the pad 1 into the casing member, a wider portion of one of the pair of engagement members 20 is covered by the wearer's hand. Therefore, it is possible to suppress the engagement of the engagement member 20 to an undesired position of the outer race member, so that the pad 1 can be smoothly inserted.

However, the joining member 20 is not limited to the above, and may overlap the 2 nd compressed part 32, extend outward in the width direction from the 2 nd compressed part 32, or extend to the side part 1S in the width direction of the pad 1. In this case, the length W3 in the width direction of the engagement member 20 is long, and a wide range in the width direction of the mat 1 can be engaged with the outer sleeve. Thus, the positional deviation of the mat 1 relative to the outer race member can be suppressed.

As shown in fig. 6 and 7, the 2 nd compressed part 32 is preferably provided on the crotch side of the outer end 20a of the joining member 20 in the longitudinal direction in the expanded and extended state of the pad 1. This is because, when the mat 1 has the 2 nd compressed part 32, the region of the mat 1 on the outer side in the longitudinal direction than the 2 nd compressed part 32 is easily bent starting from the outer end 32a in the longitudinal direction of the 2 nd compressed part 32. Therefore, it is preferable to provide the joining member 20 in a region of the pad 1 which is more easily bent at the outer side in the longitudinal direction than the 2 nd compressed portion 32. Thereby, the easily bendable region of the pad 1 is firmly engaged with the outer race member by the engaging member 20. Therefore, it is possible to suppress the occurrence of undesired bending during wearing of the pad 1, thereby reducing a feeling of discomfort during wearing and suppressing leakage of excrement.

In addition, as shown in fig. 3, the pad 1 has side sheets 4 (sheets) forming side edges in the width direction of the pad 1. The side sheet 4 is folded back inward in the width direction from a position on the non-skin side of the absorbent core 10 toward a position on the skin side of the absorbent core 10 so as to tuck in the side edge of the absorbent core 10 in the width direction. In the pad 1 of fig. 3, the side sheet 4 wraps the side edge in the width direction of the absorbent core 10 in the pad through the lower core wrap 11B.

In this case, it is no longer necessary to seal the absorbent core 10 by sealing the skin side sheet 2 and the non-skin side sheet 3 so as to surround the outer periphery of the plane of the absorbent core 10. Therefore, the absorbent core 10 can be disposed in the vicinity of the side edge in the width direction of the side sheet 4, and the absorbent core 10 can be disposed over substantially the entire region in the width direction of the pad 1. Therefore, the rigidity can be increased over substantially the entire region of the pad 1 in the width direction, and the pad 1 is less likely to bend when the pad 1 is inserted into the outer sheath, and the pad 1 can be smoothly inserted. In addition, even when the width of the pad 1 is made small in order to facilitate the wearing of the pad 1 on the outer cover, the width of the absorbent core 10 can be made as large as possible, so that the absorption performance can be secured and leakage is less likely to occur.

In addition, the side sheet 4 is folded in two in the width direction sandwiching the absorbent core 10 in the thickness direction. Therefore, for example, the number of layers of the material of the side portions in the width direction of the pad 1 and the amount of the adhesive of the joining material are larger than in the case where the side sheet 4 is provided only on the skin side of the absorbent core 10. Therefore, the rigidity of the side portions of the pad 1 in the width direction is increased, and the pad 1 is less likely to bend when the pad 1 is inserted into the outer sheath, and the pad 1 can be smoothly inserted.

In the pad 1 illustrated in fig. 3, the side portion in the width direction of the non-skin side sheet 3 is also folded back toward the non-skin side at the folded position of the side sheet 4. Therefore, the non-skin side sheet 3 is disposed over the entire width of the pad 1, and therefore the non-skin side sheet 3 can receive the excretory fluid absorbed by the absorbent core 10. Further, by folding back the non-skin side sheet 3, the number of layers of the material of the side portion in the width direction of the pad 1 is increased, and the rigidity of the side portion in the width direction of the pad 1 is also improved. Therefore, the pad 1 is not easily bent when the pad 1 is inserted into the outer sheath member.

Further, the pad 1 has a liquid impermeable leakproof layer on the non-skin side of the absorbent core 10, thereby preventing leakage of excreta liquid absorbed by the absorbent core 10. As shown in fig. 3, the non-skin side sheet 3 of the present embodiment is a sheet having a two-layer structure in which a nonwoven fabric 3B is laminated to a resin film 3A from the non-skin side by lamination processing, and the resin film 3A corresponds to a leakage-proof layer. In this case, it is preferable that the dynamic friction coefficient of the non-skin side surface of the non-skin side sheet 3 (nonwoven fabric 3B) is higher than the dynamic friction coefficient of the skin side surface of the leakage-preventive layer (resin film 3A).

That is, the non-skin side surface of the non-skin side sheet 3 mainly forms the non-skin side surface of the pad 1, and thus the dynamic friction coefficient of the non-skin side surface of the pad 1 increases. Therefore, the pad 1 is less likely to slide on the inner surface of the outer sheath, and the positional deviation of the pad 1 with respect to the outer sheath during wearing can be suppressed. Therefore, the uncomfortable feeling during wearing can be reduced.

The non-skin side sheet 3 of the pad 1 of the present embodiment has a double-layer structure and a leakage-proof layer, but is not limited thereto. For example, the non-skin side sheet 3 (exterior sheet) such as a nonwoven fabric may have a structure having another sheet (leakage-proof layer) that is impermeable to liquid on the skin side.

The method of measuring the coefficient of dynamic friction can be performed by a known method, and examples thereof include the following methods. The sample of the non-skin side having the non-skin side sheet 3 and the sample of the skin side having the leakage-preventive layer 3A are cut into a predetermined size from the mat 1Small (e.g., about 10cm in length and 20cm in width). Next, the friction force was measured for each sample using the friction force detection function of an automated surface tester (KESFB 4-AUTO-A, manufactured by JIEGO TECHNOLOGY CO., LTD.). For the measurement conditions, the contact area of the friction member was set to 5mm × 5mm (0.25 cm) ² ) The load W was set to 50gf (about 0.5N) in the vertical direction including the weight of the friction member. Then, a tension of 400g was applied to a sample width of 20cm, the sample was placed in an automated surface testing machine, the friction material was brought into contact with the sample under a load W, the moving speed of the friction material was set to 1mm/sec, the friction force F was measured, and the average value of the coefficient of dynamic friction was calculated and compared.

The embodiments of the present invention have been described above, but the above embodiments are for easy understanding of the present invention, and the present invention is not limited to the above embodiments. Needless to say, the present invention can be modified and improved without departing from the gist thereof, and the present invention includes equivalents thereof.

Claims

1. An absorbent pad having a longitudinal direction, a width direction and a thickness direction in a developed state, and having an absorbent core, a skin side sheet and a non-skin side sheet,

at least in the longitudinal direction and the width direction central portion of the absorbent pad,

the skin side panel is located on a skin-most side of the absorbent pad,

the non-skin side panel is positioned on a non-skin side of the absorbent pad,

a maximum thickness from a skin-side surface of the skin-side sheet to a non-skin-side surface of the non-skin-side sheet is 4.0mm or less in a state where the absorbent pad is unfolded and stretched,

the maximum load in a pad compression test in which the crotch-side end portion of the absorbent pad folded in two at the folded position in the width direction is pressed against a test stand to compress the absorbent pad is 1.0N or more.

2. The absorbent pad of claim 1,

in a state where the absorbent pad is unfolded and elongated,

the maximum length of the absorbent pad in the longitudinal direction is 600mm or less,

the maximum width of the absorbent pad in the width direction is 210mm or less.

3. Absorbent pad according to claim 1 or 2,

the absorbent core is not narrowed inward in the width direction at a central portion in the longitudinal direction of the absorbent pad including the folded position.

4. The absorbent pad of claim 1 or 2,

the absorbent core has a compressed portion formed by compressing the absorbent core in the thickness direction.

5. The absorbent pad of claim 4,

the compression section has a pair of long compression sections extending longer in the longitudinal direction than in the width direction at both side portions of the absorbent core in the width direction.

6. The absorbent pad of claim 5,

an engaging member for engaging the absorbent pad with the casing member is provided on a non-skin side of the absorbent pad,

the joining member is located inward in the width direction of the pair of elongated compressed portions.

7. Absorbent pad according to claim 1 or 2,

all of the joining members in the width direction are housed in a central portion when the absorbent pad is divided into three portions in the width direction at its maximum width.

8. The absorbent pad of claim 1 or 2,

the absorbent pad has a pair of leg-surrounding elastic members and/or a pair of leakage preventing wall elastic members on both side portions in the width direction,

the pair of leg-surrounding elastic members are arranged along the longitudinal direction so that the absorbent pad follows the leg-surrounding of the wearer,

the pair of leakage preventing wall elastic members are provided along the longitudinal direction so that the leakage preventing wall portions stand up toward the skin side.

9. Absorbent pad according to claim 1 or 2,

the absorbent pad has a sheet of material,

the sheet forms side edges in the width direction of the absorbent pad, and is folded back inward in the width direction toward a skin side of the absorbent core from a position on the non-skin side of the absorbent core so as to tuck the side edges in the width direction of the absorbent core.

10. The absorbent pad of claim 9,

a pair of the sheets is provided on both side portions in the width direction of the absorbent pad,

the pair of sheets are disposed on the non-skin side surface of the absorbent pad so as to be separated in the width direction,

the absorbent core has a pair of long compressed sections formed by compressing the absorbent core in the thickness direction, the pair of long compressed sections extending longer in the longitudinal direction than in the width direction at both side sections of the absorbent core in the width direction,

the long compressed portion is located on the non-skin side of the absorbent pad inward of the sheet in the width direction.

11. The absorbent pad of claim 1 or 2,

the long compressed portion is provided on the crotch side of the outer end of the joining member in the longitudinal direction in a state where the absorbent pad is expanded and extended.

12. Absorbent pad according to claim 1 or 2,

the absorbent pad has a liquid-impermeable leakproof layer at a position closer to the non-skin side than the absorbent core,

the dynamic friction coefficient of the non-skin side surface of the non-skin side sheet is higher than that of the skin side surface of the leakage-proof layer.