JP2022076017A - Absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To absorb resilience in a compression part formed on an absorber to facilitate folding of the absorber to prevent buckling of the compression part.

SOLUTION: An absorbent article 10 comprises a belt-like easy folding part 20 disposed on an absorber 13 and composed of a compression part 21 and a plurality of resilience absorbing parts 22, that is, the easy folding part 20 extending in a prescribed direction on the absorber 13. The compression part 21 is formed by compressing the absorber 13 in sequence in the prescribed direction by an embossing roll, and all of the plurality of resilience absorbing parts 22 are each formed so as not to cover the whole region in a width direction of the easy folding part 20, and so as to protrude inward from an end edge in the width direction of the easy folding part 20 and be connected to a side wall and a bottom wall in the compression part 21 formed by continuing from one end edge to the end edge in an extending direction of the easy folding part 20. A length in the width direction of the easy folding part 20 is more than 1 mm and less than 20 mm.

SELECTED DRAWING: Figure 5

COPYRIGHT: (C)2022,JPO&INPIT

Description

The present invention relates to an absorbent article having a liquid permeable top sheet, a liquid permeable back sheet, and an absorber arranged between them.

Conventionally, absorbent articles such as disposable diapers (hereinafter, also simply referred to as “diapers”) that induce the discharged body fluid (hereinafter, also simply referred to as “body fluid”) to be absorbed by the absorber are widely known. The absorber is one in which an absorbent material such as pulp or a super absorbent polymer (hereinafter, also referred to as “SAP”) is deposited and wrapped with a core wrap. This absorber is thicker than the top and back sheets and may be difficult to bend to fit the wearer's skin well.

By the way, the discharged body fluid is required to be efficiently absorbed by the absorber. Therefore, for example, Patent Document 1 discloses an absorbent article that forms an elongated strip-shaped squeezed portion by squeezing an absorber and diffuses the body fluid in the squeezed portion to efficiently absorb the body fluid. Has been done. Further, in such an absorbent article, it is easy to bend in the width direction of the squeezed portion formed on the absorber.

Japanese Unexamined Patent Publication No. 2002-165834

Here, when the absorber is squeezed, the elements (mainly pulp) constituting the absorber are pressed and stretched, so that the portion of the absorber where the squeezed portion is formed and its surroundings are in the extending direction of the squeezed portion. Will stretch towards. Therefore, after squeezing, a restoring force is generated to repel this stretching force, and the restoring force causes the squeezed part to contract, resulting in buckling of the squeezed part and wrinkles in and around the squeezed part. May occur. However, in the absorbent article described in Patent Document 1, since it is not considered that a restoring force is generated in the compressed portion, wrinkles are generated in the compressed portion of the absorber and the top sheet joined to the periphery thereof. There was a risk that the texture of the top sheet would be poor and that the absorbent article would not feel comfortable to wear.

An object of the present invention is to provide an absorbent article for absorbing a restoring force in a squeezed portion formed in the absorber in order to facilitate bending of the absorber and suppressing buckling of the squeezed portion.

The absorbent article according to the present invention includes a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body arranged between the top sheet and the back sheet. It is a band-shaped easy-folding processed portion provided in the absorber and composed of a pressing portion and a plurality of restoring force absorbing portions, and is easily bent extending in a predetermined direction in the absorber. The squeezed portion is provided with a processed portion, and the squeezed portion is formed by sequentially squeezing the absorber in the predetermined direction in which the easily bent portion is extended by an embossing roll, and all of the plurality of restoring force absorbing portions are formed. The strip-shaped easy-folding portion extends inward from the widthwise end edge of the strip-shaped easy-folding portion so as not to cover the entire width direction of the strip-shaped easy-folding portion. It is formed so as to be connected to the side wall and the bottom wall of the squeezed portion continuously formed from one end edge to the other end edge in the existing direction, and is formed in the width direction of the strip-shaped easily bent portion. The length is larger than 1 mm and smaller than 20 mm.

According to the present invention, since the restoring force absorbing portion is provided in the extending direction of the easily bent portion, the restoring force in the easily bent portion is absorbed, so that buckling of the pressed portion can be suppressed. It will be possible. Further, since the pressed portion is continuously formed, it is possible to easily bend the absorber in the width direction of the strip-shaped easily bent portion.

It is a perspective view seen from the front side in the appearance of an example of the diaper which concerns on 1st Embodiment of this invention. It is an exploded perspective view of the diaper shown in FIG. It is a top sheet view of the stretched diaper which concerns on 1st Embodiment. FIG. 3 is a sectional view taken along the line IV-IV in FIG. It is a top sheet view of the absorber which concerns on 1st Embodiment of this invention. FIG. 5 is a sectional view taken along the line VI-VI in FIG. It is a top sheet view of the absorber which concerns on 2nd Embodiment of this invention. FIG. 7 is a sectional view taken along the line VIII-VIII in FIG. It is a top sheet view of the absorber which concerns on 3rd Embodiment of this invention. It is a figure which showed the example of the formation pattern of the easy bending part which concerns on other embodiment of this invention, (a) is a plan view which looked at the absorber from the top sheet side, (b) is (a). It is a cross-sectional view in the Xb-Xb direction in), and shows an example of an absorber bent in the state of wearing. It is a figure showing an example of the formation pattern of the easy bending part which concerns on other embodiment of this invention, (a) shows a V-shaped pattern, (b) shows an X-shaped pattern, respectively.

An embodiment of the absorbent article according to the present invention will be described in detail with reference to FIGS. 1 to 11. However, the present invention is not limited to the embodiment of the present embodiment. In addition, in the description of this specification and FIGS. 3 to 11, the A direction represents the longitudinal direction of the absorber, and the B direction is the direction orthogonal to the A direction and represents the width direction of the absorber.

First, a first embodiment in which the present invention is applied to a deployable disposable diaper will be described below.

<First Embodiment>
<Structure>
FIG. 1 shows a perspective view of an example of a diaper according to the first embodiment of the present invention as viewed from the front side. The diaper 10 according to the present embodiment is a deployable disposable diaper, and has a front body region 10F, a back body region 10R, and an inseam region 10C connecting the front body region 10F and the back body region 10R. Further, when worn, the front body region 10F and the back body region 10R form a waist-circumferential opening 10W that surrounds the wearer's waist portion. Similarly, a pair of left and right leg-circumferential openings 10L that surround the thigh portions of both legs of the wearer are formed by the lower end portions of the front body region 10F and the rear body region 10R and the inseam region 10C.

When worn, the front body area 10F is located on the ventral side of the wearer, and the back body area 10R is located on the back side of the wearer. When worn, the inseam region 10C covers the wearer's inseam, and the wearer's legs are passed through the pair of left and right leg-circumferential openings 10L. Therefore, the leg circumference opening 10L is located at any of the thighs from the bases of both legs of the wearer.

At the left and right end edges of the back body area 10R of the cover sheet 11 located on the outside of the diaper 10, when worn, they are overlapped with the left and right end edges of the front body area 10F and connected to form an opening 10L around the legs. A pair of left and right fastening tapes 10A to be obtained are adhered to each other. The fastening tape 10A is repeatedly peelably bonded to the front patch sheet 10B adhered to the cover sheet 11 of the front body region 10F.

FIG. 2 is a schematic exploded perspective view of the diaper 10 shown in FIG. 1, and FIG. 3 is a plan view of the stretched diaper 10 according to the first embodiment as viewed from the top sheet 14 side. Further, FIG. 4 is a sectional view taken in the IV-IV direction in FIG. The diaper 10 in FIG. 2 and the absorber 13 in FIG. 3 are shown in a partially broken state for convenience of explanation.

As shown in FIG. 2, the diaper 10 in the present embodiment is, in order from the outside, a cover sheet 11 formed of a thin non-woven fabric in order to obtain a good feel, and a back sheet (back sheet) having liquid impermeable properties. It has a laminated structure in which 12, an absorber 13, a top sheet (surface sheet) 14 having liquid permeability, and a pair of side sheets 15 are laminated.

In the present invention, the absorber 13 is provided with an elongated strip-shaped easily bent portion 20 that has been processed to facilitate bending of the absorber 13. The easily bent portion 20 is composed of a squeezed portion 21 and a plurality of non-squeezed portions (hereinafter, also referred to as “restoring force absorbing portions”) 22 in a predetermined direction in the absorber 13 (in the present embodiment, the longitudinal length of the absorber 13). It extends in the direction (that is, the A direction).

In the present embodiment, as shown in FIGS. 3 and 4, the squeezing portion 21 is provided by squeezing a laminate of the absorber 13 and the top sheet 14 (hereinafter, also referred to as “absorption portion”). An adhesive is applied to the surface where the top sheet 14 and the absorber 13 are in contact with each other, and the pressing is performed by, for example, embossing roll. As a result, the top sheet 14 and the absorber 13 are occluded and integrally joined in the entire squeezed portion 21 extending from the bottom surface (bottom wall) to the wall surface (side wall) of the squeezed portion 21. The thickness of the top sheet 14 and the absorber 13 at the bottom of the squeezed portion 21 (thickness of the absorbing portion) is preferably about 1/2 to 1/9 of the thickness when not squeezed. More preferably, it is about 1/4 to 1/9. With this configuration, since the top sheet 14 and the absorber 13 are integrally formed, the top sheet 14 and the absorber 13 are firmly bonded to each other, the top sheet 14 is not easily peeled off, and the top sheet 14 is in a state along the groove. , The groove is maintained. Further, since the absorbent core 17 is fixed by the pressing portion 21, the absorbent core 17 itself is less likely to lose its shape when the diaper 10 is worn, and the absorbent core 17 itself is easily bent when worn to improve the fit to the body. Is possible.

In the present embodiment, the non-squeezed portion 22 is an unsqueezed portion, and is represented by hatching of a plurality of diagonal lines in FIG. 3, FIGS. 5, 7, and 9 described later. The plurality of non-squeezed portions 22 have a function of absorbing the restoring force in the easily bent portion 20, and the details will be described later.

A pair of notched portions 11N forming an opening around the leg 10L are formed on both the left and right sides of the inseam region 10C of the cover sheet 11. A pair of rubber threads 16 for forming gathers around the legs are adhered between the cover sheet 11 and the pair of side sheets 15 in an stretched state.

The top sheet 14 is made of a non-woven fabric having liquid permeability or the like. The back sheet 12 is joined to the cover sheet 11, the absorber 13 is arranged between the back sheet 12 and the top sheet 14, and the top sheet 14 is joined to the back sheet 12 via the absorber 13. .. Further, of the back sheet 12, the region corresponding to the upper end portion of the back body region 10R extends along the width direction of the back sheet 12 and has elasticity to give the wearer an appropriate wearing feeling around the waist. Sheet 10D is joined.

The absorber 13 of the present embodiment, which is located under the top sheet 14, is an absorbent core 17 mainly composed of pulp and SAP coated with a covering member (core wrap) 18 such as a tissue or a non-woven fabric. The seam formed by wrapping the absorbent core 17 with the covering member 18 is formed, for example, on the upper surface of the absorbent body 13 so as to extend in the longitudinal direction, as shown in FIG. The absorber 13 of the present embodiment has an elongated shape so as to extend to the front body, inseam, and back body. Here, assuming that the front body portion to the back body portion are in the front-back (up-down) direction and the direction orthogonal to the front-back (up-down) direction is the left-right direction, the absorber 13 of the present embodiment is a rectangular body having different front-back (up-down) left-right lengths. (In FIGS. 2 and 3, the front-back (upper and lower) length is longer than the left-right length). The shape of the absorber 13 of the present embodiment is not limited to this, and for example, a substantially square shape having the same front-back (up-down) left-right length, and a shape in which the front-back (up-down) end corners are rounded off. , Includes various shapes such as elliptical ones extending back and forth (up and down), circular ones, etc. Further, a pair of arcuate notches may be formed in the inseam portion of the absorber 13 so as to correspond to the pair of leg-circumferential openings 10L. In the diaper 10 according to the present embodiment, the absorbent body 13 wrapped with the covering member 18 is used, but the absorbent article according to the present invention uses the absorbent core 17 not wrapped with the covering member 18. You may.

In the present embodiment, as shown in FIGS. 3 and 4, the pressing portion 21 is continuously formed on the surface of the absorber 13, and the U-shape and the inverted U-shape are connected to each other. It is arranged so as to be a thing (substantially a rectangular wave shape). As shown in FIGS. 3 and 4, by continuously forming the squeezed portion 21, the elongated strip-shaped easily bent portion 20 has a function like a bending line, and the easily bent portion 20 has a function like a bending line. It becomes easy to bend in the width direction of the diaper, and it becomes possible to improve the fit of the diaper. In addition, since creases are likely to be formed at the same position, it is possible to improve the wearability when the diaper 10 is worn again. Further, by continuously forming the pressing portion 21, air can pass through to the ventral side or the dorsal side, and air permeability can be ensured. Further, the discharged body fluid can be rapidly diffused and the absorber 13 can be efficiently absorbed by the absorber 13 as a whole.

A pair of hydrophobic side sheets 15 forming three-dimensional gathers are provided on the left and right side edges of the top sheet 14 in the width direction in the present embodiment. The pair of side seats 15 are members that stand up along the left and right side edges of the absorber 13 when worn to prevent lateral leakage of the discharged body fluid. A notch portion 15N is formed on the outer edge portion of the pair of side seats 15 in the same shape as the pair of notch portions 11N of the cover sheet 11. A thread rubber 19 as a three-dimensional gather elastic material is arranged in a stretched state on each of the pair of side sheets 15 so that the inner edge portion thereof is folded back toward the absorber 13 and gripped. When the thread rubber 19 contracts, the pair of side seats 15 stand up in the direction of contact with the wearer's skin. The three-dimensional gather can adopt a known configuration used for conventional disposable diapers. For example, it can be formed by sandwiching and fixing a three-dimensional gather elastic material in a stretched state between layers of a water-repellent sheet.

<Easy bending part>
FIG. 5 is a plan view of the absorber 13 according to the first embodiment of the present invention as viewed from the top sheet 14 side, and FIG. 6 is a sectional view in the VI-VI direction in FIG. In FIGS. 5 and 6, for convenience of explanation, the description of the seams of the cover sheet 11, the side sheet 15, and the covering member 18 is omitted.

As described above, the strip-shaped easily bent portion 20 is composed of a squeezed portion 21 and a plurality of non-squeezed portions 22. As shown in FIG. 5, the plurality of non-squeezed portions 22 have a square shape, and cover the entire width direction of the easily bent portion 20 (in the present embodiment, the width direction of the absorber 13, that is, the B direction). Each is formed so as not to extend to. Here, the easily bent portion 20 is referred to as referring to a region including the squeezed portion 21 and the plurality of non-squeezed portions 22 so as to be in contact with the outermost end of the squeezed portion 21. This configuration makes it easier for the absorber 13 to bend in the width direction of the easily bent portion 20 as compared with the configuration in which the non-squeezed portion 22 is formed so as to cover the entire width direction of the easily bent portion 20. Is possible.

Further, when a virtual straight line is arbitrarily drawn on the strip-shaped easy-folding portion 20 so as to extend in the extending predetermined direction of the easy-folding portion 20, at least one of the plurality of non-squeezed portions 22 A plurality of non-squeezed portions 22 are arranged so as to overlap each other with the virtual straight line. In the present embodiment, the predetermined direction is the longitudinal direction of the absorber 13, that is, the A direction, and the virtual straight line is represented by X in FIG. The virtual straight line X is a line parallel to the central axis of the absorber 13 extending in the front-rear direction of the absorber 13. By forming the easily bent portion 20 in the longitudinal direction of the absorber 13, it is possible to absorb the restoring force of the compressed portion in the longitudinal direction of the absorber 13.

Conventionally, the discharged body fluid is required to be efficiently absorbed by the absorber 13, for example, in Patent Document 1, an elongated band-shaped squeezed portion is formed by squeezing the absorber, and the body fluid is formed in the squeezed portion. Disclosed are absorbent articles that aim for efficient body fluid absorption by diffusing. Further, in such an absorbent article, it is easy to bend in the width direction of the squeezed portion formed on the absorber.

However, in the absorbent article described in Patent Document 1, the restoring force caused by the squeezing of the absorber buckles the squeezed portion and causes wrinkles on the squeezed portion of the absorber and the top sheet joined to the periphery thereof. Since the possibility was not taken into consideration, there was a risk that the texture of the top sheet would be poor and that the absorbent article would not be comfortable to wear. This phenomenon occurs when the top sheet is attached to the absorber and the restoring force of the top sheet occurs when the laminate of the absorber and the top sheet is squeezed, or when the top sheet is attached to the absorber after the absorber is squeezed. It becomes more remarkable due to the restoring force of the top sheet generated in.

According to the present embodiment, by providing the non-squeezed portion 22 in the extending direction of the easily bent portion 20, the restoring force applied to the easily bent portion 20 is absorbed and dispersed in the plurality of non-squeezed portions 22. It is possible to suppress the buckling of the squeezed portion 21 and to make it difficult for wrinkles to occur in the top sheet 14 joined to the squeezed portion 21 and its periphery. Therefore, it is possible to improve the texture of the top sheet 14 and improve the wearing feeling of the diaper 10. Further, since the squeezed portion 21 is continuously formed, the absorber 13 can be easily bent in the width direction of the strip-shaped easily bent portion 20, and the fit of the diaper 10 can be improved. Will be.

Further, according to the configuration of the present embodiment, wrinkles are suppressed from being formed in the squeezed portion 21, so that the covering member 18 (or the top sheet 14) is less likely to be peeled off from the squeezed portion 21 as a starting point, and when the diaper 10 is reattached. However, the absorbent core 17 is less likely to lose its shape.

Further, since the absorbent core 17 does not lose its shape, it becomes difficult for the SAP to move in the absorbent core 17 when the diaper 10 is attached, and as a result, the position of the SAP in the absorbent core 17 is stabilized and the absorption performance of the SAP is stabilized. It will be.

The length of the easily bent portion 20 in the width direction is preferably larger than about 1 mm and smaller than about 20 mm from the viewpoint of liquid diffusivity and air permeability. Further, from the viewpoint of ease of bending, those larger than about 3 mm and smaller than about 5 mm are more preferable. If it is about 5 mm or more, the pressed portion of the easy-folding portion 20 is too wide to bend in the width direction of the easy-folding portion 20. When it is about 3 mm or less, when the absorber 13 is bent, the facing side wall portions of the squeezed portion 21 hit each other and it becomes difficult to break.

The length of the easily bent portion 20 in the longitudinal direction is preferably larger than about 170 mm and is provided over the entire longitudinal direction of the absorber 13 from the viewpoint of ease of bending. If it is about 170 mm or less, a portion other than the squeezed portion 21 may prevent the absorber 13 from bending.

The easily bent portion 20 is arranged in a region including the central region of the absorber 13 from the viewpoint of achieving both ease of bending and diffusivity (leakage of body fluid), and the length in the longitudinal direction is larger than about 170 mm and about 240 mm. Smaller ones are preferred. With this configuration, the easily bent portion 20 extending in the longitudinal direction of the absorber 13 is easily bent in the width direction, and the widthwise end portion of the absorber 13 is easily bent toward the skin surface side, resulting in lateral leakage of body fluid. It is possible to suppress back leakage while suppressing it. Here, the central region of the absorber 13 refers to a region that first comes into contact with a liquid such as urination and a region in the vicinity thereof. The central region of the absorbent body 13 can be changed depending on the physique, gender, etc. of the wearer of the absorbent article.

<Second Embodiment>
In the second embodiment of the present invention, the arrangement configuration of the squeezing portion 21 constituting the easily bent portion 20 and the plurality of non-squeezing portions 22 is different from that of the first embodiment, while squeezing is performed in the same manner as in the first embodiment. The restoring force in the easily bent portion 20 generated by this is absorbed, and the buckling of the squeezed portion 21 is suppressed.

FIG. 7 is a plan view of the absorber 13 according to the second embodiment of the present invention as viewed from the top sheet 14 side, and FIG. 8 is a sectional view taken along the line VIII-VIII in FIG. Among the elements constituting the absorbent article according to the present embodiment, those having the same function are designated by the same reference numerals as those in the first embodiment, and the description thereof will be omitted.

In the present embodiment, as shown in FIG. 7, the pressing portion 21 is continuously formed on the surface of the absorber 13, and the pressing portion 21 extends in the first direction intersecting the A direction and extends in the first direction. They are arranged in a zigzag shape so as to intersect in the A direction and extend in a second direction different from the first direction. The non-squeezed portion 22 has a triangular shape corresponding to the shape of the squeezed portion 21.

According to the present embodiment, as in the first embodiment, the restoring force in the easily bent portion 20 is absorbed, so that the buckling of the squeezed portion 21 is suppressed, and the buckling is suppressed to the squeezed portion 21 and its surroundings. It is possible to make the top sheet 14 less likely to wrinkle. Further, since the squeezed portion 21 is continuously formed as in the first embodiment, it is possible to easily bend the absorber 13 in the width direction of the strip-shaped easily bent portion 20.

Further, with this configuration, as in the first embodiment, the absorbent core 17 is less likely to lose its shape, and the absorption performance of SAP is stabilized.

<Third Embodiment>
FIG. 9 is a plan view of the absorber according to the third embodiment of the present invention as viewed from the top sheet side. Among the elements constituting the absorbent article according to the present embodiment, those having the same function are designated by the same reference numerals as those in the first embodiment, and the description thereof will be omitted.

In the third embodiment of the present invention, as shown in FIG. 9, on the surface of the absorber 13, a pressing portion 21 in which X-shaped objects are vertically connected is continuously formed in the longitudinal direction of the absorber 13. There is. Also in the present embodiment, as in the first embodiment, the plurality of non-squeezed portions 22 are arranged so that at least one of the plurality of non-squeezed portions 22 overlaps with the virtual straight line X. The plurality of non-squeezed portions 22 are composed of right-angled isosceles triangles and squares so as to correspond to the shape of the squeezed portions 21.

According to the present embodiment, as in the first embodiment, the restoring force in the easily bent portion 20 is absorbed, so that the buckling of the squeezed portion 21 is suppressed, and the buckling is suppressed to the squeezed portion 21 and its surroundings. It is possible to make the top sheet 14 less likely to wrinkle. Further, since the squeezed portion 21 is continuously formed as in the first embodiment, it is possible to easily bend the absorber 13 in the width direction of the strip-shaped easily bent portion 20.

Further, with this configuration, as in the first embodiment, the absorbent core 17 is less likely to lose its shape, and the absorption performance of SAP is stabilized.

<Others>
The present invention is not limited to the above-described embodiments and modifications described everywhere, and can be appropriately modified or modified without departing from the technical idea of the present invention.

For example, the structure of the diaper according to each of the above embodiments or variations thereof is not limited to the developed type as described above, and may be a diaper including a structure of an absorbent article specified in the claims. Any configuration may be used. For example, the present invention can be applied to pants-type disposable diapers, urine pads, and the like.

In addition, each of the above embodiments or variations thereof is applicable not only to diapers for infants but also to various absorbent articles such as diapers for adults and urine pads.

Further, in each of the above embodiments or a modification thereof, the squeezing portion 21 is provided by squeezing the laminate of the absorber 13 and the top sheet 14, but in the present invention, the top sheet is squeezed after the absorber 13 is squeezed. 14 may be attached to the absorber 13.

In each of the above embodiments or modifications thereof, the easily bent portion 20 is formed on the top sheet 14 side of the absorber 13, but the present invention is not limited to this, and the back sheet 12 side of the absorber 13 and the top of the absorber 13 are formed. The easily bent portion 20 may be formed on the sheet 14 side and the back sheet 12 side.

Further, in each of the above embodiments or a modification thereof, the easily bent portion 20 extends in the longitudinal direction of the absorber 13, but extends in various directions within the range in which the effect of the present invention is exhibited. A mode that exists, for example, a mode that extends in a direction intersecting the longitudinal direction of the absorber 13 (for example, a width direction of the absorber 13), or a mode in which a plurality of strips are provided is also permitted.

10A and 10B are views showing an example of a formation pattern of the easily bent portion 20 according to another embodiment of the present invention, and FIG. 10A is a plan view of the absorber as viewed from the top sheet side. 10 (b) is a cross-sectional view in the Xb-Xb direction in (a), and shows an example of an absorber bent in a worn state.

In the present embodiment, the easily bent portion 20 is arranged on the top sheet 14 side of the absorber 13 in parallel with two rows in the longitudinal direction of the absorber 13. With this configuration, in addition to obtaining the same effect as each of the above-described embodiments, as shown in FIG. 10 (b), it becomes possible to easily bend like W in a cross-sectional view, and it fits the wearer's body. Moreover, the body fluid can be diffused in the continuous pressing portion 21. In order to achieve this effect more reliably, even if the easily bent portion 20 is formed on the back sheet 12 side of the absorber 13 in the longitudinal direction of the absorber 13 so as to pass through the center of the width of the absorber 13. good.

11A and 11B are views showing an example of a forming pattern of the easily bent portion 20 according to another embodiment of the present invention, in which FIG. 11A represents a V-shaped pattern and FIG. 11B represents an X-shaped pattern. .. In the present embodiment, the easily bent portion 20 is arranged in a V-shape or an X-shape so as to include the central region of the absorber 13. The squeezed portion 21 and the non-squeezed portion 22 constituting the easily bent portion 20 according to the present embodiment may be any of the above-described embodiments or modifications thereof.

According to this embodiment, it is possible to obtain the same effect as that of the first embodiment. Further, since the easy-folding portion 20 is easily bent in a V-shape or an X-shape in the central region of the absorber 13, the diaper 10 is easily folded so as to form a gap with the skin of the wearer's inseam. It is possible to suppress crotch rubbing. Further, when the diaper is reattached to the wearer, the diaper 10 is easily bent in a V-shape or an X-shape, so that the wearer does not need to adjust the shape of the diaper 10 and the workability can be improved. ..

Further, the shape of the non-squeezed portion 22 is not limited to a square or a triangle as in each of the above-described embodiments or variations thereof, and may include a polygon and a curve.

Further, each of the above embodiments and modifications thereof can be combined.

10 Diaper 10A Fastening Tape 10B Front patch sheet 10F Front body area 10R Back body area 10C Inseam area 10W Waist circumference opening 10L Leg circumference opening 11 Cover sheet 11N, 15N Notch 12 Back sheet 13 Absorber 14 Top sheet 15 Side Sheets 16, 19, 23 Thread rubber (elastic member)
17 Absorbent core 18 Covering member (core wrap)
20 Easy bending part 21 Pressing part 22 Non-squeezing part

Claims (8)

An absorbent article comprising a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber disposed between the top sheet and the back sheet.
It is a band-shaped easy-folding portion provided on the absorber and composed of a pressing portion and a plurality of restoring force absorbing portions, and includes an easily bending-processed portion extending in a predetermined direction in the absorber. ,
The squeezed portion is formed by sequentially squeezing the absorber in the predetermined direction in which the easily bent portion extends by embossing roll.
All of the plurality of restoring force absorbing portions project inward from the widthwise end edge of the strip-shaped easily bent portion so as not to cover the entire width direction of the easily bent portion. The strip-shaped easily bent portion is formed so as to be connected to the side wall and the bottom wall of the squeezed portions that are continuously formed from one end edge in the extending direction to the other end edge.
An absorbent article characterized in that the length of the strip-shaped easily bent portion in the width direction is larger than 1 mm and smaller than 20 mm. The absorbent article according to claim 1, wherein the predetermined direction is the longitudinal direction of the absorber. The absorbent article according to claim 1 or 2, wherein the plurality of restoring force absorbing portions are arranged so as to be asymmetrical on the left and right in the width direction of the easily bent portion. Each of the plurality of restoring force absorbing portions has substantially the same size and shape, and is characterized in that the number of the easily bent portion is arranged so as to be substantially the same or the same on both the left and right sides in the width direction. The absorbent article according to any one of claims 1 to 3. The left and right restoring force absorbing portions in the width direction of the easily bent portion are arranged at substantially equal intervals, and the pressing portion is provided between the restoring force absorbing portions in the longitudinal direction of the absorber. The absorbent article according to any one of claims 1 to 4, wherein the area is provided. The plurality of restoring force absorbing portions according to any one of claims 1 to 5, wherein the left and right shapes of the easily bent portion in the width direction are arranged so as to be staggered. Absorbent article. When a virtual straight line is arbitrarily drawn on the strip-shaped easy-bending portion so as to extend in the predetermined direction, the virtual straight line is used as a bending line and is bent and used in the easy-bending portion. The absorbent article according to any one of claims 1 to 6, which is characteristic. The absorbent article according to claim 7, wherein the easily bent portion is configured to be used by being mountain-folded on the skin surface side.

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