CN112367954A

CN112367954A - Absorbent article

Info

Publication number: CN112367954A
Application number: CN201980043980.4A
Authority: CN
Inventors: 渡部芳久; 中岛广嗣
Original assignee: Unicharm Corp
Current assignee: Unicharm Corp
Priority date: 2018-06-29
Filing date: 2019-06-26
Publication date: 2021-02-12
Also published as: JP6956048B2; JP2020000758A; WO2020004457A1

Abstract

Provided is an absorbent article comprising an absorbent body which has a plurality of compressed sections arranged intermittently and which is less likely to form wrinkles in the transverse direction. An absorbent article (10) has a front region (S1), a rear region (S3), a crotch region (S2) between the front region and the rear region, a front-rear direction (L) that connects the front region and the rear region, a width direction (W) that intersects the front-rear direction, and an absorber (40). The absorber has a plurality of compressed lines (EL) having compressed portions (80) extending in at least one direction. At least one of the plurality of Extrusion Lines (EL) has an extrusion portion (80) and a non-extrusion portion (86) between the extrusion portions (80). At least in the crotch region, the non-squeezing portion (86) is provided at a position that overlaps, when viewed in the width direction (W), a squeezing portion (80) of a squeezing line (EL) that is different from the squeezing line (EL) to which the non-squeezing portion (86) belongs.

Description

Absorbent article

Technical Field

The present invention relates to an absorbent article including an absorbent body having a compressed portion.

Background

An absorbent article such as a disposable diaper has an absorbent body that absorbs liquid such as urine. In the absorbent article described in patent document 1, the absorbent body is formed with lattice-like compressed grooves. By forming the compressed groove in the absorber, the bending rigidity is improved, and the shape retention of the absorber can be maintained.

Patent document 1 also discloses an absorbent body in which non-compressed portions are formed between a plurality of linear compressed portions. That is, the pressing portion is formed in an intermittent linear shape. By providing the non-compressed portions (intermittent portions) between the compressed portions, the absorbent core such as a super absorbent polymer can move through the non-compressed portions (gaps between the compressed portions), and concentration of the super absorbent polymer can be suppressed.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open No. 2014-100262

Disclosure of Invention

In the intermittent pressing portions as shown in fig. 5 of patent document 1, the non-pressing portions between the pressing portions are aligned in the width direction. That is, the pressing portions are disposed adjacent to each other in the front-rear direction with the non-pressing portions extending in a straight line in the width direction interposed therebetween. Thus, transverse gathers are easily formed in the absorbent body at the non-compressed portions extending in line in the width direction. When the absorbent body is formed with transverse gathers, there is a possibility that urine leaks laterally because urine moves along the gathers, which is not only aesthetically displeasing.

Therefore, an absorbent article including an absorbent body having a plurality of compressed parts arranged intermittently and having a difficulty in forming wrinkles in the lateral direction is desired.

An absorbent article of one form has: a front side region; a posterior region; a crotch region between the front and back regions; a front-back direction connecting the front region and the back region; a width direction intersecting the front-rear direction; and an absorbent body having a plurality of compressed lines having compressed portions extending at least in one direction, at least one of the plurality of compressed lines having a non-compressed portion between the compressed portion and the compressed portion, the non-compressed portion being disposed at a position overlapping the compressed portion of the compressed line different from the compressed line to which the non-compressed portion belongs when viewed from the width direction, at least in the crotch region.

Drawings

Fig. 1 is a plan view of the absorbent article of the first embodiment as viewed from the skin surface side.

Fig. 2 is a plan view of the absorber of the first embodiment.

Fig. 3 is a schematic cross-sectional view of the absorbent article taken along line 3A-3A of fig. 1.

Fig. 4 is an enlarged view of the region 4R of fig. 2.

Fig. 5 is a schematic diagram showing a pattern of extrusion lines of the second embodiment.

Fig. 6 is a schematic diagram showing a pattern of extrusion lines of the third embodiment.

Fig. 7 is a schematic diagram showing a pattern of extrusion lines of the fourth embodiment.

Fig. 8 is a schematic diagram showing a pattern of extrusion lines of the fifth embodiment.

Fig. 9 is a schematic diagram showing a pattern of extrusion lines of the sixth embodiment.

Fig. 10 is a schematic view showing a pattern of extrusion lines of the seventh embodiment.

Detailed Description

(1) Brief description of the embodiments

At least the following matters will become apparent from the description of the present specification and the accompanying drawings.

According to this aspect, the non-squeezing portion of the squeezing line is provided at a position overlapping with the squeezing portion of the squeezing line different from the squeezing line to which the non-squeezing portion belongs when viewed from the width direction. Therefore, the non-pressing portions do not extend in line in the width direction. This makes it difficult to form lateral gathers in the absorbent body. Since the lateral wrinkles are difficult to form, it is possible to suppress leakage of moisture such as urine flowing along the lateral wrinkles.

According to a preferred aspect, the non-pressing portion of a first pressing line of the plurality of pressing lines is provided at a position overlapping with the pressing portion of a second pressing line adjacent to the first pressing line.

Thus, since the non-compressed portions of the compressed lines adjacent to each other are not arranged in the width direction, that is, are arranged offset in the front-rear direction, it is more difficult to form the lateral wrinkles.

According to a preferred aspect, in the extrusion line, an intersection line of the extruded portion and the non-extruded portion is inclined with respect to the width direction.

The boundary line between the compressed portion and the non-compressed portion is likely to be the base point of bending of the absorbent body due to the difference in rigidity. Therefore, when the boundary line between the pressed portion and the non-pressed portion is inclined with respect to the width direction, it is difficult to form a bending base point in the width direction. Therefore, it is more difficult to form transverse gathers in the absorbent body.

According to a preferred aspect, at least a part of the plurality of pressing lines is inclined with respect to the width direction.

According to this aspect, the absorber is less likely to bend with a line along the width direction as a base point, and the absorber is likely to bend along a line inclined with respect to the width direction. This allows the absorber to be easily bent so as to fit the line of the wearer's body.

According to a preferred aspect, the adjacent compressed lines among the plurality of compressed lines are curved or bent in a wave shape so as to divide the absorbent body into a plurality of lattice-shaped cells.

In this way, since the absorbent body is formed with the substantially lattice-shaped compressed portions, the rigidity of the absorbent body as a whole can be improved, and deformation of the absorbent body can be suppressed.

According to a preferred aspect, at least one of the adjacent extrusion lines has the non-extrusion portion at a position where the extrusion lines intersect with each other or are most adjacent to each other.

The position where the plurality of compressed lines intersect with each other or are most adjacent to each other is located at the apex of each cell of the absorbent body surrounded by the plurality of compressed lines. By the presence of the non-compressed portion at the apex, the tension of the absorbent body is relaxed, and a margin of relaxation of the absorbent body can be generated. This can prevent the absorber of each cell from becoming too hard.

According to a preferred aspect, the extrusion lines have the non-extrusion portions at locations other than the portions that intersect or are most adjacent to each other.

The non-compressed part is also present at the side of the compressed line, and the tension of the absorbent body is relaxed more. This can prevent the absorber of each cell from becoming too hard.

According to a preferred aspect, the length of the non-compressed portion along the compressed line is equal to or greater than the width of the compressed portion in the direction intersecting the compressed line.

This also makes it easy for the absorbent body to bend at the compressed line in the direction intersecting the compressed line. Therefore, the absorbent body is easily bent so as to fit the body, and the tactile sensation of the skin is improved.

According to a preferred aspect, the length of the non-compressed portion along the compressed line is smaller than the width of the compressed portion in a direction intersecting the compressed line.

This can maintain the lattice-shaped compressed parts and the shape retention of the absorbent body. In addition, a decrease in the diffusibility of urine along the compressed line can be suppressed, and urine can be easily absorbed by the entire absorbent body.

According to a preferred aspect, the distance in the front-rear direction between the non-compressed portions in the compressed line adjacent to each other is shorter than the longer one of the lengths of the non-compressed portions along the compressed line.

Since the distance in the front-rear direction between the non-compressed portions is short, the state of tension of the absorbent body in the width direction is relaxed between the non-compressed portions. This can suppress the absorbent body from becoming too hard, and improve the tactile sensation of the skin.

According to a preferred aspect, the distance in the front-rear direction between the non-squeezing portions in the squeezing lines adjacent to each other is longer than a longer one of the lengths of the non-squeezing portions along the squeezing lines.

According to this aspect, since the distance between the non-compressed portions in the front-rear direction is sufficiently separated, it becomes more difficult to form wrinkles in the transverse direction in the absorbent body.

According to a preferred aspect, at least one of the adjacent pressing lines has a first pressing portion provided at a portion intersecting with or most adjacent to each other and a second pressing portion provided at a portion other than the portion intersecting with or most adjacent to each other, and a depth of the first pressing portion is deeper than a depth of the second pressing portion.

By increasing the depth of the first squeezing portions provided at the portions that intersect or are most adjacent to each other, the visibility of the squeezing portions can be improved. Further, by making the depth of the second pressing portions provided at portions other than the portions that intersect or are most adjacent to each other shallow, it is possible to suppress a decrease in the tactile sensation of the skin.

According to a preferred aspect, at least one of the adjacent extrusion lines has a plurality of first non-extrusion portions provided at mutually intersecting or most adjacent portions and a second extrusion portion provided between the first non-extrusion portions, and the length of the first non-extrusion portions along the extrusion line is shorter than the length of the second extrusion portion along the extrusion line.

Thus, the second extrusion portion is formed at the side where the plurality of extrusion lines intersect with each other or the most adjacent portions are connected to each other. Since the second squeezing portion forming such a side has a long length, liquid such as urine is easily diffused, and urine is easily absorbed by the entire absorbent body.

(2) First embodiment

Hereinafter, embodiments will be described with reference to the drawings. In the following drawings, the same or similar reference numerals are given to the same or similar parts. However, it should be noted that the drawings are schematic drawings, and the ratio of the dimensions and the like may be different from those in reality.

Fig. 1 is a plan view of an absorbent article viewed from the skin surface side according to an embodiment. Fig. 2 is a plan view of the absorbent article seen from the non-skin surface side according to the embodiment. Fig. 3 is a plan view of an absorber according to an embodiment. Fig. 4 is a schematic cross-sectional view of the absorbent article taken along line 4A-4A of fig. 1.

The absorbent article 10 may be an article such as a disposable diaper or a sanitary napkin. Hereinafter, the absorbent article 10 will be described in detail by way of example.

The absorbent article 10 has a front region S1, a crotch region S2, and a rear region S3. The front side region S1 is a portion that contacts the front waistline portion (abdomen portion) of the wearer. The rear region S3 is a portion that contacts the rear waist portion (back portion) of the wearer. The crotch region S2 is located between the front and back regions S1 and S3.

In the present embodiment, the direction from the front side region S1 toward the rear side region S3 is referred to as the front-rear direction L. A direction perpendicular to the front-rear direction L is referred to as a width direction W.

The absorbent article 10 may have a topsheet 50, an absorbent 40, and backsheet 60, 62. The surface sheet 50 may be composed of one or more sheets. The front sheet 50 may be a liquid-permeable sheet such as a nonwoven fabric.

The back sheets 60, 62 may be formed from one or more sheets. In the present embodiment, the back sheet may have a leakage-preventing sheet 62 positioned on the non-skin surface side of the absorber 40 and a non-skin surface sheet 60 positioned on the non-skin surface side of the leakage-preventing sheet 62. The leakage-preventing sheet 62 may be formed of, for example, a liquid-impermeable film. The non-skin surface sheet 60 may be made of, for example, nonwoven fabric.

The absorbent article 10 may have side sheets 70 extending outward in the width direction W from both outer edges of the absorber 40 in the width direction W. The side sheet 70 may be provided at a position overlapping the absorber 40 on the skin surface side of the absorber 40.

In the present embodiment, the absorbent article 10 includes a pair of fastening tapes 90. The fastening tape 90 is provided in the rear region S3. The fastening tape 90 fixes the front region S1 and the rear region S0. The fastening tape 90 holds the absorbent article 10 to the wearer' S body by fixing the front region S1 and the back region S3 to each other.

Instead of the above embodiment, the absorbent article 10 may not include the pair of fastening tapes 90. In this case, the absorbent article may have a pants-type shape, for example. The absorbent article may be of a type that is used by being attached to underwear.

The absorber 40 is disposed between the surface sheet 50 and the leakage-preventing sheet 62. The absorber 40 may have an absorbent core 40a and a core pack 40b that wraps the absorbent core 40 a.

The absorbent core 40a is provided at least in the crotch region S2, and preferably extends from the crotch region S2 toward at least either one of the front region S1 and the back region S3. The absorbent core 40a may be formed using a comminuted pulp or a superabsorbent polymer.

The core pack 40b is made of a liquid-permeable sheet. The core pack 40b may be composed of, for example, cotton yarn or nonwoven fabric. The core pack 40b on the skin surface side of the absorbent core 40a and the core pack 40b on the non-skin surface side of the absorbent core 40a may be formed of different sheets or the same sheet.

The core pack 40b on the skin surface side of the absorbent core 40a may be bonded to the absorbent core 40a with the adhesive 30 a. The core pack 40b on the non-skin surface side of the absorbent core 40a may be bonded to the absorbent core 40a with the adhesive 30 b.

The absorbent article 10 may have an indicator 68 for determining the presence or absence of adhering urine. The indicator 68 may be provided on the non-skin-facing side of the absorber 40. For example, the indicator 68 is provided on the skin surface side of the leakproof sheet 62. In the present embodiment, the indicator 68 extends in the front-rear direction L at least in the crotch region S2. The indicator 68 may be constituted by a member that changes color due to attachment of urine, for example. The indicator 68 changes color due to the attachment of urine, thereby allowing the user to know whether or not the urine is attached.

At least a part of the indicator 68 is preferably provided in close contact with a non-skin surface side pressing portion 80 described later. More preferably, the indicator 68 is bonded to the core pack 40b at the non-skin surface side pressing portion 80 by an adhesive. Since at least a part of the indicator 68 is closely attached to the pressing portion 80 on the non-skin surface side described later, the indicator 68 easily reacts with urine absorbed by the absorber 40. This makes it possible for the user to easily determine the absorption of urine into the absorbent body.

The absorber 40 has a plurality of compressed lines EL having compressed portions 80 extending in at least one direction. At least one of the plurality of pressing lines EL has a pressing portion 80 and a non-pressing portion 86 between the pressing portions 80. That is, the extrusion line EL is composed of the extrusion portions 80 and the non-extrusion portions 86 alternately arranged.

The crush portion 80 may be formed in the absorbent core 40a and the core package 40 b. The pressing portion 80 may include a skin-surface-side pressing portion formed on the skin surface side of the absorber 40 and a non-skin-surface-side pressing portion formed on the non-skin surface side of the absorber 40. The skin-side compressed portion is a portion recessed in the thickness direction from the skin surface side of the absorber 40 toward the non-skin surface side. The non-skin-side compressed portion is a portion that is recessed in the thickness direction from the non-skin side of the absorber 40 toward the skin side. Here, the non-skin-side compressed portion is provided at a position overlapping the skin-side compressed portion in the thickness direction T of the absorber 40.

The compressed lines EL may be formed in a lattice shape in the absorber 40. That is, the absorber 40 may be divided into a plurality of cells 46 by a plurality of crush lines EL. In the present embodiment, the plurality of extrusion lines EL extend in the front-rear direction L and are formed in a wave shape that is curved or bent in the width direction. The phases of the waveforms of the extrusion lines EL adjacent to each other are shifted from each other by 180 °. Thus, each cell 46 is formed into a substantially rhombic shape by the pressing lines EL adjacent to each other. The compressed line EL may be provided at least in the crotch region S2, and is preferably formed over the entire region of the absorber.

At least in the crotch region S2, the non-squeezing portion 86 is provided at a position that overlaps, when viewed in the width direction W, the squeezing portion 80 of the squeezing line EL that is different from the squeezing line EL to which the non-squeezing portion 86 belongs. In other words, the pressing portion 80 is present at any position in the front-rear direction L at least in the crotch region S2. Therefore, the non-pressing portions 86 do not extend in line in the width direction W. This makes it difficult to form wrinkles in the width direction W in the absorber 40. Since the wrinkles in the width direction W are difficult to form, it is possible to suppress the leakage of moisture such as urine along the wrinkles in the width direction W.

In the entire region of the absorber 40 in the front-rear direction L, from the viewpoint that wrinkles in the width direction W are difficult to form, the non-compressed portion 86 is preferably provided at a position overlapping, as viewed in the width direction W, the compressed portion 80 of the compressed line EL different from the compressed line EL to which the non-compressed portion 86 belongs, in the entire region of the absorber 40.

The non-pressing portion 86 of a first pressing line of the plurality of pressing lines EL is disposed at a position overlapping the pressing portion 80 of a second pressing line adjacent to the first pressing line. Specifically, the non-squeezing portion 86 of a certain squeezing line EL is provided at a position overlapping with the squeezing portion 80 of the squeezing line EL adjacent thereto. More preferably, the non-squeezing portions 86 of the squeezing lines EL are not arranged in line with each other in the width direction W. Thus, since the non-squeezing portions 86 of the squeezing lines EL adjacent to each other are not arranged in the width direction W, that is, are not arranged offset in the front-rear direction L, wrinkles in the width direction W are more difficult to form.

In the present embodiment, the mutually adjacent compressed lines of the plurality of compressed lines EL are preferably bent or curved in a wave shape so as to divide the absorber 40 into a plurality of lattice-shaped cells. Specifically, in the embodiment shown in fig. 4, the first portion 81 and the second portion 82 of a certain extrusion line that bulge in the width direction face the third portion 83 and the fourth portion 84 of the adjacent extrusion line EL that bulge in the width direction, and the absorber 40 is divided into the substantially rhombic cells 46 by the first portion 81, the second portion 82, the third portion 83, and the fourth portion 84. As shown in fig. 2 and 4, the cells 46 need not be divided into the cells 46 that are adjacent to each other and completely separated from each other by the pressing portions 80. That is, the cells 46 adjacent to each other may be locally connected. For example, in the present embodiment, the cells 46 adjacent in the front-rear direction L are connected via the minute regions where the extrusion lines EL adjacent to each other are closest to each other.

By forming the substantially lattice-shaped compressed portions 80 in the absorber 40, the rigidity of the absorber 40 as a whole can be increased, and deformation of the absorber 40 can be suppressed.

At least a part of the plurality of extrusion lines EL is preferably inclined with respect to the width direction W. Specifically, the first portion 81, the second portion 82, the third portion 83, and the fourth portion 84 constituting the squeeze line EL are inclined with respect to the width direction W. This makes it difficult for the absorber 40 to bend from a line extending in the width direction W as a base point, and makes it easy for the absorber 40 to bend along a line inclined with respect to the width direction W. Therefore, the absorber 40 is easily bent in a manner to fit the line of the wearer's body.

The extrusion line EL may have a first non-extrusion portion 86a located at a portion intersecting with or most adjacent to each other and a second non-extrusion portion 86b located at a portion other than the portion intersecting with or most adjacent to each other.

The first non-squeezing portions 86a are preferably provided at least one of the squeezing lines EL adjacent to each other, at a position where the squeezing lines EL adjacent to each other cross each other or are most adjacent to each other. The portions where the extrusion lines EL intersect or are most adjacent to each other are located at the apexes of the cells 46 of the absorber 40 surrounded by the extrusion lines EL. By the first non-compressed portion 86a being present at the apex, the state of tension of the absorber 40 is relaxed, and a margin of relaxation of the absorber 40 can be generated. Here, the allowance is a portion where the absorber 40 is not bonded to the core pack and easily moves with respect to the absorber 40. That is, the absorbent core 40a is easily moved slightly by relaxing the force with which the core pack 40b is pressed against the absorbent core 40 a. This can prevent the absorber 40 of each cell 46 from becoming too hard.

When the second non-squeezing portions 86b are provided at locations other than the locations where the squeezing lines EL intersect or are most adjacent to each other, the second non-squeezing portions 86b are also present at the sides of the squeezing lines EL, that is, at the sides constituting the cells 46. This further eases the force with which the core pack 40b is pressed against the absorbent core 40a, and the taut state of the absorber 40 is further eased. Therefore, the absorber 40 of each cell 46 can be further suppressed from becoming too hard.

The length L1 of the non-squeezing portion 86 along the squeezing line EL is preferably smaller than the width W1 of the squeezing portion 80 in the direction intersecting the squeezing line EL. More preferably, the length L1 of the second non-pressing portion 86b at least along the pressing line EL is smaller than the width W1 of the pressing portion 80 in the direction intersecting the pressing line EL. This can maintain the lattice-shaped compressed parts 80 and the shape retention of the absorber 40. Further, the decrease in the urine diffusibility along the squeeze line EL can be suppressed, and the entire absorbent body can easily absorb urine.

It is preferable that the distance L2 in the front-rear direction L between the non-squeezing portions 86 in the squeezing lines EL adjacent to each other be longer than the longer one of the lengths L1 of the respective non-squeezing portions 86 along the squeezing lines EL. Thus, since the distances in the front-rear direction L between the non-compressed portions 86 are sufficiently separated, it becomes more difficult to form wrinkles in the width direction W in the absorber 40.

At least one of the mutually adjacent extrusion lines EL may have extrusion portions (third and fourth portions) 83, 84 provided between the first non-extrusion portions 86 a. In this case, the length of the first non-squeezing portion 86a along the squeezing line EL is preferably shorter than the length of the third and

fourth portions

83 and 84 along the squeezing line. Thus, the squeezing portions (the third portion 83 and the fourth portion 84) extending relatively long are formed at the side where the portions where the squeezing lines EL intersect with each other or are most adjacent to each other are connected to each other. Since the length of the squeezing portion forming such a side is long, liquid such as urine is easily diffused, and urine is easily absorbed by the entire absorbent body.

At least one of the mutually adjacent pressing lines EL has a first pressing portion 80a provided at a mutually intersecting or most adjacent portion and a second pressing portion 80b provided at a portion other than the mutually intersecting or most adjacent portion. That is, the first squeezing portion 80a is located at the vertex of the squeezing line EL that surrounds the cell 46. In the present embodiment, the first pressing portion 80a is adjacent to the first non-pressing portion 86 a. The second squeezing portion 80b is located on the side of the squeezing line EL that surrounds the cell 46.

In this case, the depth of the first pressing portion 80a is preferably deeper than the depth of the second pressing portion 80 b. More specifically, the depth of the first squeezing portion 80a at the position of the apex of the squeezing line EL surrounding the cell 46 is deeper than the depth of the second squeezing portion 80b located at the side of the squeezing line EL surrounding the cell 46. By increasing the depth of the first squeezing portions 80a provided at the portions that intersect or are most adjacent to each other, the visibility of the squeezing portions 80 can be improved. Further, by making the depth of the second squeezing portions 80b provided at portions other than the portions that intersect or are most adjacent to each other shallow, it is possible to suppress a decrease in the tactile sensation of the skin.

In each squeezing line EL, a boundary line 87 between the squeezing portion 80 and the non-squeezing portion 86 is preferably inclined with respect to the width direction W. The boundary line 87 between the compressed portion 80 and the non-compressed portion 86 is likely to be the base point of the bending of the absorber 40 due to the difference in rigidity. Therefore, when the boundary line 87 between the pressed portion 80 and the non-pressed portion 86 is inclined with respect to the width direction W, it is difficult to form a bending base point in the width direction W. Therefore, wrinkles in the width direction W are less likely to be formed in the absorber 40.

(3) Second embodiment

Next, an absorbent article of a second embodiment will be described. Hereinafter, the same structure as that of the first embodiment may be omitted from description. In the second embodiment, the pattern of the extrusion line EL formed in the absorber 40 is different from that of the first embodiment.

Fig. 5 is a schematic diagram showing the pattern of the extrusion line EL in the second embodiment. In the second embodiment, the pattern of the extrusion line EL is substantially the same as that of the first embodiment. However, the length of the squeezing portion 80 and the length of the non-squeezing portion 86 constituting the squeezing line EL are different from those of the first embodiment.

In the second embodiment, the length L1 of the non-squeezing portion 86 along each squeezing line EL is equal to or greater than the width W1 of the squeezing portion in the direction intersecting the squeezing line EL. This makes the absorber 40 easily bend at the squeeze line EL in the direction intersecting the squeeze line EL. Therefore, the absorber 40 is easily bent so as to fit the body, and the skin feel is improved.

Further, the distance L2 in the front-rear direction L between the non-squeezing portions 86 in the squeezing lines EL adjacent to each other is shorter than the longer one of the lengths L1 of the respective non-squeezing portions 86 along the squeezing lines EL. Since the distance L2 in the front-rear direction L between the non-compressed portions 86 is short, the tension of the absorbent body 40 in the width direction W is relaxed between the non-compressed portions 86. That is, in each cell 46, the force with which the core pack 40b is pressed against the absorbent core 40a is alleviated. This can prevent the absorber 40 from becoming too hard, and improve the tactile sensation of the skin.

(4) Third embodiment

Next, an absorbent article of a third embodiment will be described. Hereinafter, the same structure as that of the first embodiment may be omitted from description. In the third embodiment, the pattern of the extrusion line EL formed in the absorber 40 is different from that of the first embodiment.

Fig. 6 is a schematic diagram showing a pattern of the extrusion line EL according to the third embodiment. In the present embodiment, the plurality of extrusion lines EL extend in the front-rear direction L and are formed in a wave shape that is bent in the width direction. That is, the extrusion line EL extends in the front-rear direction L while meandering in the width direction at a position closest to an imaginary line extending in the front-rear direction L. The phases of the waveforms of the extrusion lines EL adjacent to each other are shifted from each other by 180 °. Thus, each cell 46 is formed into a substantially square shape by the pressing lines EL adjacent to each other.

Each pressing line EL includes pressing portions 80 and non-pressing portions 86 alternately arranged. A certain extrusion line EL and an adjacent extrusion line EL intersect each other at the closest point, and the point of intersection is the extrusion portion 80. The non-pressed portion 86 is provided adjacent to the pressed portion 80 corresponding to the intersection of the cells 46. In this case, too, the non-compressed portion 86 is provided at a position overlapping the compressed portion 80 of the compressed line EL different from the compressed line EL to which the non-compressed portion 86 belongs when viewed from the width direction W at least in the crotch region S2.

(5) Fourth embodiment

Next, an absorbent article of a fourth embodiment will be described. Hereinafter, the same structure as that of the first embodiment may be omitted from description. In the fourth embodiment, the pattern of the extrusion line EL formed in the absorber 40 is different from that of the first embodiment.

Fig. 7 is a schematic diagram showing a pattern of the extrusion line EL according to the fourth embodiment. In the present embodiment, the extrusion lines EL extend in the front-rear direction L and are arranged in the width direction W. In the present embodiment, each of the extrusion lines EL is formed in a wave shape curved in the width direction. However, the phases of the waveforms of the extrusion lines EL adjacent to each other are not deviated. As shown in fig. 7, the extrusion lines EL may not be formed in a lattice shape. However, at least in the crotch region S2, the non-compressed portion 86 is provided at a position that overlaps, when viewed in the width direction W, the compressed portion 80 of the compressed line EL that is different from the compressed line EL to which the non-compressed portion 86 belongs.

(6) Fifth embodiment

Next, an absorbent article of a fifth embodiment will be described. Hereinafter, the same structure as that of the first embodiment may be omitted from description. In the fifth embodiment, the pattern of the extrusion line EL formed in the absorber 40 is different from that of the first embodiment.

Fig. 8 is a schematic diagram showing the pattern of the extrusion line EL in the fifth embodiment. In the present embodiment, the pair of extrusion lines EL extend in the front-rear direction L on both sides with the center of the absorber 40 in the width direction W interposed therebetween. In such a pattern of the compressed lines EL, the absorber 40 is sandwiched between the legs of the user, and thus the absorber 40 positioned between the pair of compressed lines EL is easily deformed into a convex shape toward the skin surface side. Thus, the absorber 40 is easily fitted to the crotch of the user. Such a pattern of the compressed line EL is suitable for use as the absorber 40 for sanitary napkins.

In addition to the pattern of the extrusion lines EL shown in fig. 8, the extrusion lines EL may be formed in a pattern such as a symbol or a pattern. Note that, in this case as well, the non-squeezing portion 86 is provided at a position overlapping the squeezing portion 80 of the squeezing line EL different from the squeezing line EL to which the non-squeezing portion 86 belongs when viewed from the width direction W.

(7) Sixth embodiment

Next, an absorbent article according to a sixth embodiment will be described. Hereinafter, the same structure as that of the first embodiment may be omitted from description. In the sixth embodiment, the pattern of the extrusion line EL formed in the absorber 40 is different from that of the first embodiment.

Fig. 9 is a schematic diagram showing a pattern of the extrusion line EL according to the sixth embodiment. In the present embodiment, the plurality of extrusion lines EL extend in the front-rear direction L and are formed in a wave shape curved in the width direction. That is, the squeeze line EL extends in the front-rear direction L while being bent in a wavy shape in the width direction at a position closest to an imaginary line extending in the front-rear direction L. The phases of the waveforms of the mutually adjacent extrusion lines EL are shifted from each other by 180 °, and the points at which the mutually adjacent extrusion lines EL are closest to each other are connected to each other by the extrusion portion along the width direction W. In this case, too, the non-compressed portion 86 is provided at a position overlapping the compressed portion 80 of the compressed line EL different from the compressed line EL to which the non-compressed portion 86 belongs when viewed from the width direction W at least in the crotch region S2.

(8) Seventh embodiment

Next, an absorbent article of a seventh embodiment will be described. Hereinafter, the same structure as that of the first embodiment may be omitted from description.

Fig. 10 is a schematic diagram showing a pattern of the extrusion line EL according to the seventh embodiment. In this embodiment, the pattern of the extrusion line EL is substantially the same as that of the first embodiment. However, the position of the non-squeezing portion 86 in the squeezing line EL is different from that in the first embodiment.

In the seventh embodiment, too, the non-squeezing portions 86 are provided at positions overlapping the squeezing portions 80 of the squeezing lines EL different from the squeezing line EL to which the non-squeezing portions 86 belong when viewed from the width direction W at least in the crotch region S2. Here, as in the seventh embodiment, at least a part of the non-pressing portion 86 may be provided at a position overlapping with the pressing portion 80 when viewed from the width direction W. In this case, it is also difficult to form the bending base point in the width direction W, and therefore, formation of wrinkles in the width direction W can be suppressed. However, from the viewpoint that wrinkles in the width direction are less likely to be formed, it is preferable that the entire non-pressing portion 86 is provided at a position overlapping the pressing portion 80 when viewed from the width direction W, as in the first embodiment.

(9) Other ways

As described above, although the contents of the present invention are disclosed by the embodiments, the description and drawings as a part of the disclosure should not be construed as limiting the present invention. Various alternative embodiments, examples, and techniques for use will be apparent to those skilled in the art in light of this disclosure. Therefore, the technical scope of the present invention is determined only by the specific matters of the invention of the claims that are appropriate from the above description.

For example, the features described in the above embodiments can be combined and/or replaced as much as possible.

The entire contents of japanese patent application No. 2018-125610 filed on 29.6.2018 are incorporated herein by reference.

Industrial applicability

According to the above aspect, it is possible to provide an absorbent article including an absorbent body that has a plurality of compressed parts arranged intermittently and that is less likely to form wrinkles in the lateral direction.

Description of the reference numerals

10 absorbent article

40 absorbent body

40a absorbent core

40b core package

50 surface sheet

60 leakproof sheet

62 non-skin surface sheet

80 extrusion part

80a skin surface side pressing part

80b non-skin surface side pressing part

Claims

1. An absorbent article in which, in the case of a disposable absorbent article,

the absorbent article has:

a front side region;

a posterior region;

a crotch region between the front and back regions;

a front-back direction connecting the front region and the back region;

a width direction intersecting the front-rear direction; and

an absorbent body having a plurality of absorbent layers,

the absorbent body has a plurality of compressed lines having compressed parts extending at least in one direction,

at least one of the plurality of pressing lines has the pressing portion and a non-pressing portion between the pressing portions,

at least in the crotch region, the non-pressing portion is disposed at a position overlapping the pressing portion of the pressing line different from the pressing line to which the non-pressing portion belongs when viewed from the width direction.

2. The absorbent article of claim 1,

the non-pressing portion of a first pressing line of the plurality of pressing lines is disposed at a position overlapping with the pressing portion of a second pressing line adjacent to the first pressing line.

3. The absorbent article according to claim 1 or 2, wherein,

in the pressing line, a boundary line between the pressing portion and the non-pressing portion is inclined with respect to the width direction.

4. The absorbent article according to any one of claims 1 to 3, wherein,

at least a part of the plurality of pressing lines is inclined with respect to the width direction.

5. The absorbent article according to any one of claims 1 to 4, wherein,

the adjacent compressed lines among the plurality of compressed lines are bent or curved in a wave shape so as to divide the absorber into a plurality of lattice-shaped cells.

6. The absorbent article according to any one of claims 1 to 5, wherein,

at least one of the mutually adjacent extrusion lines has the non-extrusion portion at a position where the mutually adjacent extrusion lines intersect or are most adjacent to each other.

7. The absorbent article of claim 6,

the extrusion lines have the non-extrusion portions at portions other than mutually intersecting or most adjacent portions.

8. The absorbent article according to any one of claims 1 to 7, wherein,

the length of the non-compressed portion along the compressed line is equal to or greater than the width of the compressed portion in the direction intersecting the compressed line.

9. The absorbent article according to any one of claims 1 to 7, wherein,

the length of the non-compressed portion along the compressed line is smaller than the width of the compressed portion in a direction intersecting the compressed line.

10. The absorbent article according to any one of claims 1 to 9, wherein,

the distance in the front-rear direction between the non-squeezing portions in the squeezing lines adjacent to each other is shorter than the longer one of the lengths of the non-squeezing portions along the squeezing lines.

11. The absorbent article according to any one of claims 1 to 9, wherein,

the distance in the front-rear direction between the non-squeezing portions in the squeezing lines adjacent to each other is longer than one of the lengths of the non-squeezing portions along the squeezing lines.

12. The absorbent article according to any one of claims 1 to 11, wherein,

at least one of the mutually adjacent pressing lines has a first pressing portion provided at a mutually intersecting or most adjacent portion and a second pressing portion provided at a portion other than the mutually intersecting or most adjacent portion,

the first pressing portion has a depth deeper than a depth of the second pressing portion.

13. The absorbent article according to any one of claims 1 to 11, wherein,

at least one of the mutually adjacent extrusion lines has a plurality of first non-extrusion portions provided at mutually intersecting or most adjacent portions and a second extrusion portion provided between the first non-extrusion portions,

the length of the first non-extruded portion along the extrusion line is shorter than the length of the second extruded portion along the extrusion line.