WO2017056611A1

WO2017056611A1 - Absorbent article

Info

Publication number: WO2017056611A1
Application number: PCT/JP2016/069460
Authority: WO
Inventors: 工藤　淳; 健太谷口; 紗恵子秋山
Original assignee: ユニ・チャーム株式会社
Priority date: 2015-09-29
Filing date: 2016-06-30
Publication date: 2017-04-06
Also published as: JP2017063976A; JP6111304B1

Abstract

Provided is an absorbent article (1) comprising: an absorbent body (10) that comprises liquid-absorbent fibers; and a liquid-permeable sheet (20) covering the absorbent body (10) from the skin side in the thickness direction. The absorbent body comprises, in the central part thereof in the width direction, one linear guide section (15) that follows the lengthwise direction and that serves to guide folding of the absorbent body (10) on the skin side. The absorbent body (10) comprises a plurality of dot-shaped compressed sections (ED10) on both sides of the linear guide section (15) in the width direction. The linear guide section (15) is provided with a recessed part on at least one of the skin side and the non-skin side, and the concentration of the liquid-absorbent fibers is greater in the central part of said linear guide section (15) than in the edges in the width direction. The individual dot-shaped compressed sections (ED10) are provided with a recessed part on at least one of the skin side and the non-skin side, and the concentration of the liquid-absorbent fibers is greater in the central part of said dot-shaped compressed sections (ED10) than in the edges in the width direction. A central position (c15) in the thickness direction of the central part of the linear guide section (15) is positioned further to the skin side than a central position (bED10) in the thickness direction of the central part of the dot-shaped compressed sections (ED10).

Description

Absorbent articles

The present invention relates to an absorbent article.

Sanitary napkins are known as absorbent articles that absorb excreted fluid such as menstrual blood. This sanitary napkin has a longitudinal direction, a width direction, and a thickness direction perpendicular to each other, and a liquid absorbent fiber is a main material between a liquid-permeable top sheet and a liquid-impermeable back sheet. It has an absorber (absorbent core).

As an example of such a sanitary napkin, Patent Document 1 describes that a large number of convex portions and a plurality of pressure-bonding portions are provided in the excretory portion-facing region on the surface of the absorbent article to improve the excretion fluid absorbability. Has been.

JP 2005-31547 A

However, in the absorbent article described in Patent Document 1, it is not possible to fit the excretion opening such as the vaginal opening of the user's body, the excretion fluid spreads on the surface of the absorbent article, There was a risk of causing discomfort and rough skin to the user.

The present invention has been made in view of the above problems, and an absorbent article having a shape corresponding to the user's body while maintaining good liquid absorbency when the absorbent article is worn. It is to provide.

The main invention for achieving the above object is:
An absorbent article having a longitudinal direction, a width direction, and a thickness direction orthogonal to each other, and having a liquid absorbent fiber, and a liquid permeable sheet covering the absorbent body from the skin side in the thickness direction. And the said absorber has one linear guidance part along the longitudinal direction for guiding it to bend to the skin side of the thickness direction in the central part of the width direction, The absorber has a plurality of point-like pressing parts on both sides in the width direction of the linear guiding part, and the linear guiding part includes a recess on at least one of the skin side and the non-skin side, and the liquid In the width direction, the density of the absorbent fibers is higher in the central portion than in the end portions, and the squeezed squeezed portion includes a recess on at least one of the skin side and the non-skin side, In the width direction, the density is higher in the center portion than in the end portion, and the linear guide portion The central position in the thickness direction of the central portion is an absorbent article characterized by being located on the skin side in the thickness direction from the central position in the thickness direction of the central portion of the point-like compressed portion. .
Other features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

According to the present invention, by bending to the skin side by the linear guiding portion, it can be brought into contact with the user's vaginal opening, and the density of the liquid absorbent fibers of the linear guiding portion and the point-like compressed portion is respectively The central part is higher than the end part, and the central position in the thickness direction of the central part of the linear guide part is provided on the skin side in the thickness direction from the central position in the thickness direction of the central part of the dotted compression part. Therefore, the excretory fluid absorbed by the linear guiding part is moved from the skin side to the non-skin side and absorbed on the non-skin side, thereby improving the fit of the absorbent article and improving the fit of the user. The risk of pleasantness and rough skin can be reduced.

FIG. 1 is a front view of the sanitary napkin 1 as viewed from the skin side in the thickness direction. FIG. 2 is a plan view of the napkin 1 viewed from the non-skin side in the thickness direction. FIG. 3 is a schematic cross section taken along line AA in FIG. FIG. 4 is a plan view of the absorbent body 10 as seen from the non-skin side in the thickness direction. FIG. 5A is a diagram for explaining the arrangement of the absorber squeezed portion ED10. Drawing 5B is a figure explaining arrangement of main part point crushing part ED20. FIG. 6 is a diagram illustrating a usage mode of the napkin 1. FIG. 7A is a schematic cross-sectional view in which an absorber point squeezed portion ED10 is formed in a portion of the absorber 10 indicated by arrows BB in FIG. FIG. 7B is a schematic cross-sectional view in which the linear guiding portion 15 is formed in the absorber 10 at the portion indicated by the arrow BB in FIG. FIG. 7C is a schematic cross-sectional view in which the top sheet 20 and the back sheet 30 are laminated on the absorber 10 at the portion indicated by arrows BB in FIG. FIG. 7D is a schematic cross-sectional view in which a main body point-like compressed portion ED20 is formed on the napkin 1 shown by the arrow BB in FIG. FIG. 8 is a schematic cross-sectional view of the absorber point pressing unit ED10 and the linear guiding unit 15 in FIG. 7D. FIG. 9 is a diagram for explaining the shape of the portion of the linear guide wire 15 indicated by the arrow CC in FIG. FIG. 10 is a schematic diagram of the absorber squeezed portion ED10 viewed from the skin side in the thickness direction of the absorber 10. FIG.

At least the following matters will become apparent from the description of the present specification and the accompanying drawings.
An absorbent article having a longitudinal direction, a width direction, and a thickness direction orthogonal to each other, and having a liquid absorbent fiber, and a liquid permeable sheet covering the absorbent body from the skin side in the thickness direction. And the said absorber has one linear guidance part along the longitudinal direction for guiding it to bend to the skin side of the thickness direction in the central part of the width direction, The absorber has a plurality of point-like pressing parts on both sides in the width direction of the linear guiding part, and the linear guiding part includes a recess on at least one of the skin side and the non-skin side, and the liquid In the width direction, the density of the absorbent fibers is higher in the central portion than in the end portions, and the squeezed squeezed portion includes a recess on at least one of the skin side and the non-skin side, In the width direction, the density is higher in the center portion than in the end portion, and the linear guide portion The center position in the thickness direction of the center portion is an absorbent article characterized in that it is located on the skin side in the thickness direction from the center position in the thickness direction of the center portion of the point-like compressed portion. .

According to such an absorbent article, it can be brought into contact with the excretion opening such as the vagina mouth of the user by being bent to the skin side by the linear guide portion, and the liquid of the linear guide portion and the point-like compressed portion. The density of the absorbent fibers is higher at the center part than at the end part, and the center position in the thickness direction of the center part of the linear guide part is higher than the center position in the thickness direction of the center part of the point-like compressed part, By providing on the skin side in the thickness direction, the excretory fluid absorbed by the linear guiding part is moved from the skin side to the non-skin side and absorbed on the non-skin side, thereby improving the fit of the absorbent article. While improving, a user's discomfort and rough skin can be reduced.

In such an absorbent article, it is desirable that the density of the liquid absorbent fiber is higher in the central portion of the pointed compressed portion than in the central portion of the linear guiding portion.

According to such an absorbent article, by increasing the density of the liquid-absorbing fibers in the central portion of the pointed compressed portion from the central portion of the linear guiding portion, the excretory fluid first absorbed by the linear guiding portion. Can be diffused into a denser point-like compressed portion.

In such an absorbent article, there is a liquid-impermeable sheet that covers the absorbent body from the non-skin side in the thickness direction, and a wing portion that protrudes outward from the liquid-impermeable sheet in the width direction. And, on the non-skin side of the wing portion in the thickness direction, a wing adhesive portion for fixing the wing portion to underwear is provided, and the length of the linear guide portion in the longitudinal direction is It is desirable that the length of the wing bonding portion is longer than the length in the longitudinal direction.

According to such an absorbent article, by making the length in the longitudinal direction of the linear guiding portion longer than the length in the longitudinal direction of the wing bonding portion, it is easy to maintain the bent shape of the linear guiding portion on the skin side. In addition, it is possible to promote the diffusion of excretory fluid in the longitudinal direction.

In such an absorbent article, the absorbent article is provided with a plurality of folding parts along the width direction for folding the liquid-permeable sheet inside, and the longitudinal direction of the linear guide part. One end in the direction is provided on the outer side in the longitudinal direction from the folding portion of the plurality of folding portions, and the other end in the longitudinal direction of the linear guide portion is out of the plurality of folding portions. It is desirable that the other folding part is provided outside in the longitudinal direction.

According to such an absorbent article, one end in the longitudinal direction of the linear guide portion is provided on the outer side in the longitudinal direction from a fold portion of the plurality of fold portions, and the other end in the longitudinal direction of the linear guide portion. However, by providing the outer side in the longitudinal direction from the other folds of the plurality of folds, it is possible to reduce the risk of excretion being blocked by the folds.

In such an absorbent article, in the longitudinal direction, the point-like squeezed portion of the point-like squeezed portion is provided at the same position as the one end of the linear guiding portion in the longitudinal direction or outside the one end. In addition, it is desirable that the other point-like squeezed portion of the point-like squeezed portion is provided at the same position as the other end in the longitudinal direction of the linear guide portion or outside the other end.

According to such an absorbent article, in the longitudinal direction, a point-like squeezed portion is provided among the point-like squeezed portions at the same position as the one end in the longitudinal direction of the linear guiding portion, or outside the one end. By providing the other point-like compressed part of the point-like compressed part at the same position as the other end in the longitudinal direction of the part or outside the other end, the excreted fluid absorbed by the linear guiding part is caused by the point-like compressed part. Since it can diffuse, excretory fluid can be absorbed in a wider range of the absorber.

In such an absorbent article, the distance from the skin side surface of the absorbent article to the linear guide portion at the center in the width direction of the linear guide portion is the linear guide from the non-skin side surface of the absorbent article. It is desirable to be smaller than the distance to the part.

According to such an absorbent article, in the center in the width direction of the linear guide part, the distance from the skin side surface of the absorbent article to the linear guide part is determined from the non-skin side surface of the absorbent article to the linear guide part. By making the distance smaller than the distance, the excretory fluid can be absorbed closer to the user's vaginal opening.

In such an absorbent article, the central portion and the point-like squeezed portion in the linear guide portion between the linear guide portion and the point-like compressed portion adjacent to the linear guide portion and the width direction. It is desirable that a region having a density of the liquid absorbent fibers lower than the density of the liquid absorbent fibers in the central portion is provided.

According to such an absorbent article, between the linear induction part and the point-like compressed part adjacent to the linear induction part in the width direction, the central part in the linear induction part and the central part in the point-like compressed part By providing a region having a density of liquid absorbent fibers lower than the density of the liquid absorbent fibers, the region having a low density of liquid absorbent fibers can store the excretory fluid, so that it is absorbed by the linear guide portion. The excreted fluid that has been collected can be stored, and the stored excretory fluid can be used as a flow path that is absorbed by the point-like compressed portion.

In such an absorbent article, in the width direction, an interval between edges of the point-like compressed parts adjacent to each other in the width direction is preferably shorter than a length of the point-like compressed part.

According to such an absorbent article, by making the space | interval with the edge of adjacent point-like pressing parts shorter than the length of a point-like pressing part in the width direction, with the edge of adjacent point-like pressing parts. Compared with the case where the interval is equal to or less than the length of the point-like compressed portion, the excretion fluid mobility between adjacent point-like compressed portions is improved.

In such an absorbent article, it is desirable that the length in the longitudinal direction of the point-like compressed portion is longer than the length in the width direction.

According to such an absorbent article, by making the length in the longitudinal direction of the point-like compressed part longer than the length in the width direction, the liquid can be diffused more in the longitudinal direction, and the width direction of the absorbent article It is possible to prevent the liquid from leaking from the outside.

In such an absorbent article, the absorbent body includes an absorbent core and a sheet member provided on the skin side of the absorbent core, and the plurality of point-like compressed parts include the absorbent body and the liquid. In the width direction, the plurality of main body point-like compressed parts joining the permeable sheet, and the plurality of absorbent body point-like compressed parts joining the absorbent core and the sheet member, It is desirable that the distance between the centers of the absorbent point squeezed parts adjacent in the width direction is narrower than the distance between the centers of the main body point squeezed parts adjacent in the width direction.

According to such an absorbent article, the absorption per unit area of the absorber is reduced by narrowing the interval between the centers of the adjacent absorber squeezed compression portions than the interval between the centers of the adjacent main body punctate pressing portions. While the number of body point-like compressed parts can be increased and the rigidity of the absorbent body can be further improved, the number of the body point-like compressed parts is relatively small so that the absorbent article has a clean appearance. Can be given.

In such an absorbent article, a plurality of the absorber point compression parts are the absorber point compression parts in which the most concave portion from the skin side is separated from the liquid permeable sheet by a predetermined distance in the thickness direction. It is desirable to have a part.

According to such an absorbent article, the plurality of absorber recesses have the absorber pressing portion in which the most recessed portion is separated from the liquid-permeable sheet by a predetermined distance in the thickness direction, so that liquid can be obtained. A portion where the absorbed absorber and the liquid permeable sheet are not in contact with each other is provided, and stickiness due to liquid on the surface of the liquid permeable sheet can be reduced.

In such an absorbent article, the linear guide portion has a first region and a second region adjacent to each other in the longitudinal direction, and the first region has a higher density of the liquid absorbent fiber than the second region. It is desirable.

According to such an absorbent article, the linear guide portion has the first region and the second region in which the density of the liquid absorbent fiber is different in the longitudinal direction, thereby further promoting the diffusion of excretory fluid in the longitudinal direction. be able to.

In such an absorbent article, it is desirable that in the width direction, the interval between the centers of the point-like compressed portions adjacent to each other in the width direction is uniform.

According to such an absorbent article, it is easy to make the rigidity of the absorbent constant by making the distance between the centers of the point-like compressed parts adjacent in the width direction uniform, and make the diffusion of excretory fluid constant. be able to.

In such an absorbent article, it is desirable that the center interval between the point-like compressed portions adjacent in the longitudinal direction is shorter than the center interval between the point-like pressed portions adjacent in the width direction.

According to such an absorbent article, the width | variety in an absorber is made by making the space | interval of the centers of the dotted | punctate pressing parts adjacent to a longitudinal direction shorter than the center gap | interval of the dotted | punctate pressing parts adjacent to the width direction. It becomes easier for the liquid to flow in the longitudinal direction than in the direction, and the liquid can be held in a wider range of the absorber.

=== First Embodiment ===
<Basic configuration of sanitary napkin 1>
A sanitary napkin 1 (hereinafter referred to as “napkin 1”) will be described as an example of the absorbent article according to the present embodiment. In the following description, a sanitary napkin will be described as an example of the absorbent article, but the absorbent article of the present embodiment also includes a so-called cage sheet (for example, a panty liner) and the like. It is not limited to napkins.

FIG. 1 is a front view of the sanitary napkin 1 as seen from the skin side in the thickness direction. FIG. 2 is a plan view of the napkin 1 viewed from the non-skin side in the thickness direction. FIG. 3 is a schematic cross section taken along line AA in FIG. In the following description, the “longitudinal direction” along the product longitudinal direction of the napkin 1, the “width direction” orthogonal to the longitudinal direction along the product lateral direction of the napkin 1, the longitudinal direction and the width direction, respectively. It is defined as the “thickness direction” orthogonal to each other. The longitudinal direction has a “front side” that is the stomach side of the user when the napkin 1 is used, and a “rear side” that is the back side of the user. The thickness direction is the “skin side” (also referred to as “upper side”), which is the side that contacts the wearer's skin when the napkin 1 is worn (also referred to as “upper side”), and the opposite side (lower side in FIG. 3). And “non-skin side” (also referred to as “lower side”). In the figure, the XX line is the center line in the width direction, and the YY line is the center line in the thickness direction.

The napkin 1 is a sheet-like member having a vertically long shape in plan view, and a liquid-permeable top sheet 20, a liquid-absorbing absorber 10, and a liquid-impermeable back sheet 30 from the skin side in the thickness direction. They are laminated in order toward the non-skin side (see FIG. 3). Each of the

members

20, 10, and 30 is joined to a member adjacent in the thickness direction with an adhesive HMA such as a hot melt adhesive.

The planar shape of the top sheet 20 and the back sheet 30 is the same shape, and the planar size is larger than the planar size of the absorbent body 10. And as shown in FIG.1 and FIG.2, the absorber 10 hold | maintains between both

sheets

20 and 30 by joining the outer-

periphery edge parts

20e and 30e of both

sheets

20 and 30 by adhesion | attachment or welding. Is done. In addition, the wing part, which is a fixing part provided when the napkin 1 is placed and fixed on an undergarment (not shown), has a substantially central portion in the longitudinal direction of the top sheet 20 and the back sheet 30 extending outward in the width direction. 20w and 30w are formed.

The absorbent body 10 has an absorbent core 11, a skin side sheet 12, and a non-skin side sheet 13. The absorptive core 11 is a member that absorbs and holds liquid (excretion fluid) such as menstrual blood. The absorbent core 11 has cellulosic absorbent fibers, which are liquid absorbent fibers, and thermoplastic resin fibers, and these fibers are mixed with each other in a plan view as shown by a broken line in FIG. It is formed into a vertically long shape. For example, pulp fibers or the like are used as the liquid absorbent fibers, and composite fibers having a so-called sheath core structure in which the sheath is polyethylene (PE) and the core is polyethylene terephthalate (PET) are used as the thermoplastic resin fibers. In addition, a rayon fiber may be used as this liquid absorptive fiber, and a single fiber of polypropylene (PP) or a single fiber of PE may be used as the thermoplastic resin fiber. Moreover, you may add liquid absorptive granular materials, such as a superabsorbent polymer (what is called SAP), to a liquid absorptive fiber.

The skin side sheet 12 is a sheet member having substantially the same shape as the absorbent core 11 and is joined by an adhesive HMA so as to cover the skin side surface of the absorbent core 11 (FIG. 3). As the skin-side sheet 12, a flexible sheet having excellent liquid permeability, such as a nonwoven fabric such as an air-through nonwoven fabric or a tissue paper, is used. The non-skin side sheet 13 is a sheet member having substantially the same shape as the absorbent core 11 and is joined by an adhesive HMA so as to cover the non-skin side surface of the absorbent core 11 (FIG. 3). As the non-skin side sheet 13, a non-woven fabric such as SMS (spunbond / meltblown / spunbond) non-woven fabric or a flexible sheet such as tissue paper is used.

FIG. 4 is a plan view of the absorber 10 as seen from the non-skin side in the thickness direction. As shown in FIG. 4, the absorbent body 10 is provided with a plurality of absorbent body point pressing parts ED <b> 10, and the rigidity of the absorbent body 10 is increased. In FIG. 4, the planar shape of the absorber squeezed portion ED10 is an ellipse and is a staggered arrangement pattern, but this is not a limitation. Moreover, the absorber 10 is a so-called thin absorber having a thickness of 3 mm or less, preferably 2 mm or less, by the absorber point-like pressing part ED10.

Further, the absorber 10 is formed with a linear guide portion 15 along the longitudinal direction at the center in the width direction. The linear guide part 15 is a pressing part formed in a straight line over the entire length in the longitudinal direction of the absorbent body 10, so that the absorbent body 10 bends to the skin side in the thickness direction starting from the linear guide part 15. Be guided to.

The top sheet 20 is a member that comes into contact with the user's skin when the napkin 1 is used, and allows liquid such as menstrual blood to permeate from the skin side in the thickness direction to the non-skin side and move to the absorber. As the top sheet 20, a liquid-permeable flexible sheet of an appropriate nonwoven fabric such as an air-through nonwoven fabric is used.

As shown in FIG. 1, a plurality of pressing parts (a linear pressing part EL20 and a main body point pressing part ED20) are formed on the skin side surface of the top sheet 20 from the skin side. And the absorber 10 are squeezed together in the thickness direction and joined and integrated. A plurality of linear compressed parts EL20 are formed along the outer peripheral edge of the absorbent body 10, and have a substantially annular shape that is long in the longitudinal direction as a whole. On the other hand, the main body point squeezed portions ED20 are discretely formed in a substantially closed region where the linear squeezed portion EL20 divides on the top sheet 20. In the present embodiment, the main body point squeezed portion ED20 has an elliptical shape, but is not limited thereto.

The back sheet 30 suppresses the liquid permeated through the top sheet 20 and absorbed by the absorbent body 10 when the napkin 1 is used from exuding to the clothing side (non-skin side) such as underwear. As the back sheet 30, a liquid-impermeable flexible sheet of an appropriate resin film such as polyethylene (PE) is used.

As shown in FIG. 2, on the non-skin surface side of the back sheet 30, there are adhesive portions (a wing adhesive portion 40 w and a main body adhesive portion 40 c) for attaching and fixing the napkin 1 to underwear or the like when the napkin 1 is used. Is provided. The wing bonding portion 40w is a pair of bonding portions formed in a substantially rectangular shape on the non-skin surface side of the wing portion 30w of the backsheet 30. The main body bonding portion 40c is formed in a portion between the pair of wing bonding portions 40w in the width direction, for example, as shown in FIG. 2, in a portion where the back sheet 30 and the absorbent body 10 overlap with each other. It is formed by applying an appropriate adhesive HMA to the band-shaped region. When the napkin 1 is used, the absorbent body 10 is positioned with respect to the user's body by attaching the napkin 1 together with the underwear while the main body adhesive portion 30c is attached to the inside of the crotch portion (crotch portion) of the underwear. Do not slip. Similarly, the wing bonding portion 40w is formed in, for example, a substantially rectangular shape by applying an appropriate adhesive HMA to the region of the wing portion 30w. When the napkin 1 is used, the napkin 1 is fixed so that the wing portion 30w (20w) is bent to the non-skin side and the wing adhesive portion 40w is affixed to the outside of the crotch portion of the underwear. Suppress.

FIG. 5A is a diagram for explaining the arrangement of the absorber point compression unit ED10. Drawing 5B is a figure explaining arrangement of main part point crushing part ED20. As shown in FIG. 4 and FIG. 5A, the thickness of the absorbent body 10 is suppressed to 3 mm or less and the rigidity is secured by forming the absorbent body point squeezed portion ED10 over the entire region of the absorbent body 10. The Further, even when the absorbent body 10 absorbs excretory fluid such as menstrual blood when the napkin 1 is used, the absorbent body 10 is suppressed from expanding in the thickness direction. In this embodiment, the space | interval of the center of absorber dotted | punctate pressing parts ED10 adjacent to the width direction and a longitudinal direction is formed equally.

Moreover, as shown to FIG. 1, FIG. 5B, the planar shape of main body point pressing part ED20 is an ellipse, it is provided discretely, the top sheet 20 and the absorber 10 are joined more strongly, and it is at the time of use etc. Further, the top sheet 20 and the absorbent body 10 are prevented from peeling off.

At this time, in the width direction, it is preferable that the center interval s10 between the adjacent absorbent point squeezed portions ED10 is narrower than the center interval s20 between the adjacent main body point squeezed portions ED20. Thereby, the number of pressing parts (ED10) per unit area of the absorber 10 increases, and the rigidity of the absorber 10 can be further improved. Moreover, since the number of main body point pressing parts ED20 which can be visually recognized from the external appearance of the napkin 1 is less than the absorber point pressing part ED10, the impression on the external appearance of the napkin 1 can be made clearer.

<When using the napkin 1>
Hereinafter, the aspect at the time of use of the napkin 1 is demonstrated. FIG. 6 is a diagram illustrating a usage mode of the napkin 1.

When the user wears the napkin 1, an operation of pulling up the underwear toward the user's crotch 201K side is performed with the napkin 1 fixed to the crotch part (crotch portion) of the underwear. At this time, as represented by the state A in FIG. 6, the napkin 1 bends to the skin side along the linear guide portion 15 of the absorbent body 10. In the state where the napkin 1 is attached to the user's crotch 201K, as shown in the state B of FIG. It becomes easy to contact the gap where the mouth 201He exists. Thereby, while making it easy to make a user feel favorable fitting property, excretion fluids, such as menstrual blood, can be made easy to make it absorb in absorber 10 without leaking.

<About the formation of the point-like compressed parts ED10, ED20, and the linear guide part 15>
Subsequently, the formation of the point pressing parts ED10 and ED20 and the linear guiding part 15 will be described. In this embodiment, absorber point squeezing part ED10 and main part point squeezing part ED20 are each point squeezing parts, and all are "point squeezing parts". In addition, "spot-like" here includes the area | region formed around a certain point, and the absorber dotted | punctate pressing part ED10 and the main body dotted | punctate pressing part 20 have a predetermined | prescribed shape and area. . Moreover, absorber dotted | punctate pressing part ED10 is provided by squeezing in the thickness direction from the skin side or a non-skin side, and is a dotted | punctate recessed part (spot-shaped recessed part) with which the skin side or the non-skin side was dented.

The linear guide part 15 is a linear pressing part along the longitudinal direction, and includes regions formed on both sides of the center line in the width direction of the absorbent body 10. The linear guide part 15 is substantially rectangular and has a predetermined area. Have Moreover, the linear induction | guidance | derivation part 15 is a linear recessed part with which the non-skin side was dented provided by pressing in the thickness direction from the non-skin side.

FIGS. 7A to 7D are diagrams illustrating the formation of the point-like compressed parts ED10 and ED20 and the linear guide part 15. FIG. FIG. 7A is a schematic cross-sectional view in which an absorber point squeezed portion ED10 is formed in a portion of the absorber 10 indicated by arrows BB in FIG. FIG. 7B is a schematic cross-sectional view in which the linear guiding portion 15 is formed in the absorber 10 at the portion indicated by the arrow BB in FIG. FIG. 7C is a schematic cross-sectional view in which the top sheet 20 and the back sheet 30 are laminated on the absorber 10 at the portion indicated by arrows BB in FIG. FIG. 7D is a schematic cross-sectional view in which a main body point-like compressed portion ED20 is formed on the napkin 1 shown by the arrow BB in FIG. 7A, 7B, and 7C, the yy line is the center line of the absorber 10 in the thickness direction, and YY in FIG. 7D is the center line of the napkin 1 in the thickness direction. .

First, the absorber point pressing part ED10 is formed. The absorbent body 10 before processing has a thickness t10 over the entire region. By compressing (embossing) the non-skin-side sheet 13, the absorbent core 11, and the skin-side sheet 12 together in the thickness direction on the absorbent body 10 before processing, the absorbent body point-like compressed portion ED10 is formed. . In this embodiment, from the non-skin side of the absorbent body 10 through the absorbent body 10 through a roll gap between a convex roller (not shown) having a plurality of protrusions and an anvil roller (not shown) having a flat surface. Absorber punctate pressing part ED10 is formed by performing pressing processing.

As shown in FIG. 7A, the absorbent body 10 obtained by squeezing the absorbent spot-shaped compressed portion ED10 has a compressed area b and an uncompressed area a. The center in the width direction of the region a has a thickness close to t10 or t10 in the thickness direction. On the other hand, in the region b, the absorbent spot-like compressed portion ED10 that is recessed from each of the skin side and the non-skin side in the thickness direction is formed. At this time, if the center in the width direction of the absorber point-like compressed part ED10 is the center bc, the length in the thickness direction of the center bc, that is, the upper surface ED10t of the absorber point-like compressed part ED10 in the center bc of the region b. The distance tED10 between the lower surface ED10b and the lower surface ED10b is smaller than t10 (t10> tED10). At this time, the absorber squeezed portion ED10 is located at a substantially central portion in the thickness direction of the absorber 10. Moreover, as for the absorber dotted | punctate pressing part ED10 (area | region b), a liquid absorptive fiber is crushed by pressing and the density of a liquid absorptive fiber becomes higher than the area | region a.

Subsequently, the linear guide portion 15 is formed. The linear induction | guidance | derivation part 15 is formed by shaping and squeezing the center part of the width direction about the absorber 10 which formed the absorber dotted | punctate pressing part ED10. In the present embodiment, the non-absorbent body 10 is provided on the skin side of the absorbent body 10 and has a convex roller (not shown) having a convex portion and a concave portion (groove portion) at a position facing the convex portion of the convex roller. The linear induction | guidance | derivation part 15 is formed by letting the absorber 10 pass to the roll gap | interval between a convex roller and a concave roller using the concave roller (not shown) provided in the skin side.

As shown in FIG. 7B, the absorbent body 10 obtained by shaping and pressing the linear induction guiding portion 15 has a region c in which the linear induction portion 15 is newly formed. The region c is recessed from each of the skin side and the non-skin side in the thickness direction. When the center in the width direction of the linear guiding portion 15 is the center cc, the thickness in the thickness direction of the center cc, that is, the region c The distance t15 between the upper surface 15t and the lower surface 15b of the linear guide portion 15 at the center cc is smaller than t10. At this time, as shown in FIG. 7B, the linear guide portion 15 is located closer to the skin side in the thickness direction. Moreover, as for the linear induction | guidance | derivation part 15, the liquid absorptive fiber is crushed by pressing and the density of a liquid absorptive fiber becomes higher than the area | region a.

In addition, it is preferable to perform pressing for forming the linear induction | guidance | derivation part 15 by pressurization smaller than the pressing for forming the absorber dotted | punctate pressing part ED10. Thereby, tED10 becomes smaller than t15 (tED10 <t15), and the density of the liquid absorbent fiber at the center bc of the absorber squeeze portion ED10 is equal to the liquid absorbent fiber at the center cc of the linear guide portion 15. The density of the liquid absorbent fibers is higher in the region b than in the region c as a whole.

However, when the linear induction | guidance | derivation part 15 is further formed in the part which formed the absorber dotted | punctate pressing part ED10, ie, when the linear induction | guidance | derivation part 15 was formed in the area | region b, the linear induction | guidance | derivation part 15 is partially formed. T15 becomes smaller and the density of the liquid absorbent fiber becomes higher.

Subsequently, as shown in FIG. 7C, the top sheet 20 is laminated from the skin side of the absorbent body 10, and is fixed by the adhesive HMA. Note that the adhesive HMA is omitted in FIGS. 7C and 7D.

Then, the main body point squeezed portion ED20 is formed. The top sheet 20 and the absorbent body 10 are squeezed together in the thickness direction from above the top sheet 20 to form the main body point-like squeezed portion ED20. In this embodiment, the napkin 1 is passed through a roll gap between a convex roller (not shown) having a plurality of protrusions and an anvil roller (not shown) having a flat surface, and pressing is performed from the skin side of the napkin 1. (Figure 7D). After the formation of the main body squeezed portion ED20, the back sheet 30 is laminated from the non-skin side, and the napkin 1 is formed by being fixed with the adhesive HMA.

As shown in FIG. 7D, the napkin 1 obtained by squeezing the main body point squeezed portion ED20 has a region d in which the main body point squeezed portion ED20 is newly formed. The region d is recessed from each of the skin side and the non-skin side in the thickness direction, and when the center in the width direction of the main body squeezed compressed part ED20 is the center dc, the thickness in the thickness direction of the center dc, that is, the region The distance tED20 between the upper surface ED20t and the lower surface ED20b of the main body point-like compressed part ED20 at the center dc of d is smaller than t10. At this time, the main body squeezed portion ED20 is located at a substantially central portion in the thickness direction of the napkin 1. Moreover, as for main body dotted | punctate pressing part ED20 (area | region d), a liquid absorptive fiber is crushed by pressing and the density of a liquid absorptive fiber becomes higher than the area | region a.

In addition, it is preferable to perform the squeezing for forming the main body point squeezing part ED20 with a larger pressure than the squeezing for forming the absorber point squeezing part ED10. Thereby, tED10 becomes larger than tED20 (tED10> tED20).

In FIG. 7D, although it decided to form main body point squeeze part ED20 further from some absorber point squeeze parts ED10 among some absorber point squeeze parts ED10, it is not restricted to this. Absorber point squeezing part ED10 and main part point squeezing part ED20 may be provided in each arbitrary position, and even if these point squeezing parts ED10 and ED20 are formed in the same position, they are provided in different positions. Also good.

When the absorber point pressing part ED10 and the main body point pressing part ED20 are formed at the same position, tED20 becomes smaller and the density of the liquid absorbent fiber becomes higher.

When the absorber point squeezed part ED10 and the body point squeezed part ED20 are not formed at the same position, that is, when the body point squeezed part ED20 is not squeezed from above the absorber point squeezed part ED10, A space S is formed as shown in 7D. In this space S, the upper surface ED10t of the absorber point-shaped compressed portion ED10 and the top sheet 20 are separated by a predetermined distance, and a space S is formed between the upper surface ED10t and the top sheet 20. The space S forms a portion where the absorbent body 10 and the top sheet 20 do not come into contact with each other. Therefore, the absorbent body 10 in which the liquid is absorbed and the top sheet 20 located on the skin side do not come into direct contact, and the liquid is sticky. Can be reduced, and the discomfort felt by the user's skin can be reduced.

<Diffusion of liquid>
Next, the diffusibility of the liquid absorbed by the napkin 1 will be described. FIG. 8 is a schematic cross-sectional view of the absorber point pressing unit ED10 and the linear guiding unit 15 in FIG. 7D. FIG. 9 is a diagram for explaining the shape of the portion of the linear guide wire 15 indicated by the arrow CC in FIG.

As shown in FIG. 8, the distance from the skin side surface of the napkin 1 to the linear guide portion 15 is smaller than the distance from the non-skin side surface to the linear guide portion 15 at the center cc in the width direction of the linear guide portion 15. . That is, in the center cc of the region c, when the distance from the upper surface of the top sheet 20 to the upper surface 15t of the linear guide portion is L1, and the distance from the lower surface of the back sheet 30 to the lower surface 15b of the linear guide portion 15 is L2, L1 is smaller than L2 (L1 <L2). Moreover, the center position of the thickness direction in the center part of the width direction of the linear induction | guidance | derivation part 15 (center part of the area | region c) is made into the point c15, and the center part (center of the area | region b) of the absorber dotted | punctate pressing part ED10 is used. If the center position in the thickness direction in the part) is a point bED10, the point 15c is located on the skin side from the point bED10. Thereby, since the linear induction | guidance | derivation part 15 whose thickness is thinner than the area | region a is located in the skin side more, a liquid can be absorbed near discharge ports, such as a user's vaginal opening. In addition, the napkin 1 is improved in fit by making it easier to produce a bulge toward the skin starting from the linear guiding portion 15 when the user tries to wear it.

In addition, it is preferable that the point bED10 of the absorber point compression unit ED10 is provided closer to the center YY in the thickness direction of the napkin 1. In the present embodiment, the point bED10 of the absorber point squeezed portion ED10 is provided in the center of the napkin 1 in the thickness direction in the thickness direction.

At this time, the liquid discharged from the excretion opening such as the vaginal opening is first absorbed by the linear guiding portion 15 (region c) close to the excretion opening. Next, the liquid absorbed by the linear guiding portion 15 is stored in a low region (region a) of the liquid absorbent fiber adjacent to the linear guiding portion 15. Thereafter, the absorbent spot-shaped compressed portion ED10 (region b) absorbs the liquid stored in the region (region a) where the density of the liquid absorbent fibers is low. And the liquid which absorber squeezed pressing part ED10 absorbed is stored in the field (area a) where the density of the liquid absorptive fiber adjacent to absorber squeezing part ED10 is low. The liquid is diffused over a wider area of the absorbent body 10 by repeating the movement of the liquid between the absorbent body point-like compressed portion ED10 (area b) and the low density area (region a) of the liquid absorbent fibers. Details of the movement of the liquid will be described later.

In addition, the movement of the liquid about the absorption of the liquid by the linear induction | guidance | derivation part 15 and the absorption of the liquid by the absorber dotted | punctate pressing part ED10 is based on "capillary phenomenon". “Capillary phenomenon” is also called “capillary phenomenon” and means that the degree of rise or fall of the liquid level in the pipe is proportional to the surface tension of the liquid and inversely proportional to the inner diameter of the pipe. In this embodiment, the space between the fibers corresponds to a tube, and refers to a phenomenon in which liquid permeates through a narrow space between the fibers regardless of gravity or top / bottom / left / right. The narrower the is, the faster the liquid penetrates.

In the present embodiment, the area c where the linear guide portions 15 are formed has a higher density of liquid absorbent fibers than the area a where the pressing process is not performed. Note that the density of the liquid absorbent fibers at the center in the width direction of the linear guide portion 15 is higher than the density of the liquid absorbent fibers at the end of the linear guide portion 15. Moreover, the area | region b in which the absorber dotted | punctate pressing part ED10 was formed has a density of a liquid absorptive fiber higher than the area | region a where the pressing process is not given. In addition, the density of the liquid absorptive fiber of the center part in the width direction of absorber point squeeze part ED10 is higher than the density of the liquid absorptive fiber of the edge part of absorber point squeeze part ED10. In addition, the density of the liquid absorbent fibers is higher in the central portion in the width direction of the absorbent point squeezed portion ED10 than in the central portion in the width direction of the linear guiding portion 15, and the region b is more liquid than the region c. High density of absorbent fibers.

The liquid discharged from the excretion opening such as the vaginal opening is first absorbed by the linear guide portion 15 having a high density of the liquid-absorbing fibers, so that it can be absorbed quickly. However, as the density of the liquid absorbent fibers is increased, the thickness of the linear guiding portion 15 is relatively thin. Therefore, the capacity | capacitance which the linear induction | guidance | derivation part 15 hold | maintains the absorbed liquid is falling, and the liquid which the linear induction | guidance | derivation part 15 absorbed and could not hold | maintain is the area | region where the density of the adjacent liquid absorptive fiber is low It moves to (area | region a) and stores a liquid in the area | region (area | region a) where the density of a liquid absorptive fiber is low. In this way, the liquid absorbed by the linear guiding part 15 close to the skin side in the thickness direction moves toward the non-skin side by moving toward the area (a) where the density of the adjacent liquid absorbent fibers is low. Therefore, stickiness or the like caused by the liquid remaining on the surface of the linear guide portion 15 can be reduced, and the possibility that the user may feel uncomfortable or rough skin can be reduced.

Subsequently, the absorber squeeze ED10 adjacent to the low region (region a) of the liquid absorbent fiber absorbs the liquid stored in the low region (region a) of the adjacent liquid absorbent fiber. At this time, the density of the liquid-absorbing fibers in the absorbent spot-like compressed portion ED10 (region b) is larger than that in the region a and the linear guiding portion 15 (region c), and therefore absorbs more liquid stored in the region a. In addition, the diffusion of the liquid can be further promoted. However, the absorber point pressing part ED10 is relatively thin with increasing density of the liquid absorbent fibers. Therefore, the ability to hold the absorbed liquid is reduced, and the liquid that has been absorbed by the absorber squeeze ED10 and can no longer be held is moved to a region (region a) where the density of the adjacent liquid absorbent fibers is low. Moving.

About the movement of this liquid, providing the low area | region (area | region a) of a liquid absorptive fiber between the linear induction | guidance | derivation part 15 and absorber dotted | punctate pressing part ED10, and between absorber dotted | punctate pressing parts ED10. preferable. The linear induction | guidance | derivation part 15 and the absorber dotted | punctate pressing part ED10 have a comparatively high density of a liquid absorptive fiber, and it is difficult to store a liquid. Therefore, if only the linear induction | guidance | derivation part 15 and absorber squeeze pressing part ED10 are formed in the absorber 10, it will become impossible to exhibit the original function of the absorber 10 which absorbs and retains a liquid. Therefore, by providing the low area | region (area | region a) of a liquid absorptive fiber between the linear induction | guidance | derivation part 15 and absorber dotted | punctate pressing part ED10 and between absorber dotted | punctate pressing parts ED10, respectively, a liquid is provided. It can be absorbed and stored, and the liquid can be moved to the adjacent absorber squeezed portion ED10.

In addition, in FIG. 8, although the movement of the liquid by the linear induction | guidance | derivation part 15 and the absorber dotted | punctate pressing part ED10 was demonstrated, since the main body dotted | punctate pressing part ED20 also has the high density of a liquid absorptive fiber, liquid diffusion is carried out. Urging. In particular, the main body point squeezed portion ED20 has a higher density of liquid absorbent fibers than the linear guide portion 15 and the absorber point squeezed portion ED10, and therefore absorbs liquid more (absorption speed is faster), Diffusion can be promoted.

The linear guide portion 15 has irregularities along the longitudinal direction. Looking at a longitudinal sectional view of the linear guiding portion 15, as shown in FIG. 9, the linear guiding portion 15 is located on the skin side in the thickness direction, and the convex portion 15f and the concave portion are formed on the skin side. 15g is provided. Note that the linear guide portions 15 in FIGS. 7A to 7D and 8 show convex portions 15f.

This convex part 15f is an area | region which formed the linear induction | guidance | derivation part 15 in the part which has not formed the absorber point squeeze part ED10, and the recessed part 15g is further in the part which formed the absorber point squeeze part ED10. This is a region where the linear guiding portion 15 is formed. As shown in FIG. 4, the absorbent body point squeezed portion ED <b> 10 and the linear guide portion 15 are provided in the same region at the center in the width direction of the absorbent body 10. As described above, since the pressure at the time of squeezing the linear guiding portion 15 is smaller than the pressure at the time of squeezing the absorber point squeezing portion ED10, the linear guiding portion 15 is formed with convex portions 15f and concave portions 15g. ing.

Due to the convex portions 15f and the concave portions 15g of the linear guiding portion 15, the convex portions 15f having a relatively low density of liquid absorbent fibers and the concave portions having a relatively high density of liquid absorbing fibers also in the linear guiding portion 15. 15g. Therefore, the liquid absorbed by the central portion of the linear guide portion 15 is absorbed by the concave portion 15g, and the liquid that cannot be held by the concave portion 15g moves to the adjacent convex portion f, and the convex portion 15f stores the liquid. . By moving the liquid that the adjacent concave portion 15g absorbs the liquid stored in the convex portion 15f, the absorbed liquid can be moved to the outside in the longitudinal direction, and the diffusion of the liquid can be promoted. it can.

The liquid is diffused toward a wide area of the absorber 10 by the movement of the liquid. In an absorbent article such as the napkin 1, no matter how large the absorbent body 10 is used, if the liquid is absorbed only in a portion close to the discharge port such as the vaginal opening, the napkin 1 is used when the napkin 1 is used for a long time. However, the liquid could not be absorbed sufficiently, and the liquid spread on the skin surface, which caused discomfort to the user. However, since the liquid can be diffused in a wider range of the absorbent body 10 by providing such a linear guiding portion 15 and the point-like pressing portions ED10 and ED20, the possibility of giving the user unpleasant feeling is reduced. In addition, the napkin 1 can be used for a longer time.

As shown in FIG. 4, it is preferable that the absorber point squeezed portion ED10 has a uniform center distance between the absorber point squeezed portions ED10 adjacent in the width direction at least in the width direction. Thereby, the rigidity of the absorber 10 can be easily made constant, and the diffusibility of the liquid can be made constant.

Moreover, it is preferable that the length of the longitudinal direction of the dotted compression parts ED10 and ED20 is longer than the length of the width direction. FIG. 10 is a schematic diagram of the absorber squeezed portion ED10 viewed from the skin side in the thickness direction of the absorber 10. FIG. In FIG. 10, if the length in the longitudinal direction of the absorber squeezed compressed portion ED10 is Wm1, and the length in the width direction is Wm2, Wm1 has an elliptical shape longer than Wm2 (Wm1> Wm2). As shown in FIG. 1 and the like, the napkin 1 has a vertically long shape. Therefore, the liquid absorbed in the central part in the longitudinal direction and the width direction is diffused to the outside in the longitudinal direction of the absorbent body 10 to hold the liquid in a wide range of the absorbent body 10, so that the napkin 1 is kept for a longer time. It is desirable to be able to use it. Therefore, by making the shape of the absorbent point squeezed portion ED10 into an ellipse that is long in the longitudinal direction, a higher part of the liquid absorbent fiber is provided in the longitudinal direction, and the diffusion of the liquid in the longitudinal direction is further promoted. The possibility of liquid leaking from the outside in the width direction of the napkin 1 can be reduced.

In the width direction, when the interval between the edges of the adjacent absorber squeezed parts ED10 is defined as the interval Wb, Wb is preferably shorter than the length (Wm2) in the width direction of the absorber squeeze parts ED10 ( Wm2> Wb). Thereby, the movement of the liquid between the absorber dotted | punctate pressing parts ED10 adjacent to the width direction can be promoted more than the case where Wb> Wm2.

Similarly, when the interval between edges of the absorber squeezed portions ED10 adjacent in the longitudinal direction is defined as the interval Wj, the interval Wj is greater than the interval Wb between the edges of the absorber squeezed portions ED10 adjacent in the width direction. It is preferable to be short (Wj <Wb). Thereby, the movement of the liquid between the absorber point squeezing parts ED10 adjacent in the longitudinal direction can be further promoted than the movement of the liquid between the absorber point squeezing parts ED10 adjacent in the width direction. It is possible to further promote the diffusion of the liquid toward the outside in the longitudinal direction.

Further, as shown in FIGS. 1 and 2, it is preferable that the length of the linear guide portion 15 is longer than the length of the wing bonding portion 40w in the longitudinal direction. Thereby, the linear induction | guidance | derivation part 15 can make it easy to maintain the shape bent to the skin side, and can promote the spreading | diffusion of the liquid to the outer side of the longitudinal direction of the absorber 10. FIG.

Further, as shown in FIG. 1, the front end of the linear guiding portion 15 is provided in front of the front folding portion H, and the rear end of the linear guiding portion 15 is rearward of the rear folding portion H. It is preferable to provide on the side. The folding part H is a folding area when the napkin 1 is transported and the like, when a packaging material is arranged on the outermost exterior and the top sheet 20 is folded inside. In the present embodiment, a three-fold napkin 1 is shown, and a front folding part H is provided on the front side of the wing bonding part 40w, and a rear folding part H is provided on the rear side of the wing bonding part 40w. At the time of use, since the folded one is opened and used, a so-called “folding fold” may remain on the napkin 1. Therefore, by providing the front end of the linear guiding portion 15 in front of the front folding portion H and providing the rear end of the linear guiding portion 15 in the rear side of the rear folding portion H, the liquid Can be prevented from being blocked by the folding portion H.

Further, in the longitudinal direction, the absorber point squeezed portion ED10 is provided at the same position as the front end of the linear guide portion 15 or outside the front end, and is the same as the rear end of the linear guide portion 15. It is preferable that the absorber point pressing part ED10 is also provided outside the position or rear end. As shown in FIG. 4, both the front end of the linear guide portion 15 and the absorbent point squeezed portion ED10 are formed up to the front end of the absorber 10, and in the longitudinal direction, the linear guide portion 15 Absorber squeezed portion ED10 is provided at the same position as the front end. Further, both the rear end of the linear guide portion 15 and the absorber point pressing portion ED10 are formed up to the rear end of the absorber 10, and are the same as the rear end of the absorber in the longitudinal direction. Absorber point pressing part ED10 is provided in the position. Thereby, since the liquid absorbed by the linear induction | guidance | derivation part 15 can be spread | diffused by the absorber dotted | punctate pressing part ED10 adjacent to the width direction, a liquid can be absorbed in the wider range of the absorber 10. FIG.

=== Other Embodiments ===
As mentioned above, although embodiment of this invention was described, said embodiment is for making an understanding of this invention easy, and is not for limiting and interpreting this invention. Further, the present invention can be changed or improved without departing from the gist thereof, and needless to say, the present invention includes equivalents thereof. For example, the following modifications are possible.

In the above-described embodiment, the absorbent body point squeezed portion ED10 and the main body point squeezed portion ED20 have an elliptical shape, but the present invention is not limited thereto. A circular shape, a rhombus shape, or the like can be appropriately modified. The liquid diffusibility can be adjusted by appropriately adjusting the shape, area, interval, and the like of the point-like compressed parts ED10 and ED20.

Furthermore, in the above-mentioned embodiment, although the liquid diffusibility by the absorber squeeze part ED10 was demonstrated, it is not restricted to this. The liquid diffusibility can also be improved by the main body squeezed portion ED20 (dot-like concave portion). Moreover, you may form a dotted | punctate pressing part combining the absorber dotted | punctate pressing part ED10 and main body dotted | punctate pressing part ED20.

In addition, about the number of absorber dotted | punctate pressing parts ED10 and main body dotted | punctate pressing parts ED20, the absorber dotted | punctate pressing part ED10 does not necessarily need more, and the absorber dotted | punctate pressing part ED10 is the whole area of the absorber 10. It does not have to be formed. Moreover, there may be more main body point squeezing parts ED20 than absorber point squeezing part ED10, or more than absorber point squeezing parts ED10. By providing the point-like compressed parts (ED10, ED20), the diffusibility of the liquid can be improved.

1 sanitary napkins (napkins),
10 Absorber,
11 Absorbent core,
12 skin side sheet (sheet member), 13 non-skin side sheet,
15 linear guide,
15t upper surface, 15b lower surface, 15f convex portion, 15g concave portion,
20 Top sheet (liquid permeable sheet),
20t top surface,
20e outer periphery, 20w wing,
30 Back sheet (liquid impervious sheet),
30b lower surface, 30e outer peripheral edge, 30w wing,
40c body adhesive part, 40w wing adhesive part,
201K crotch, 201He excretion opening ED10 absorber point compression part,
ED10t upper surface, ED10b lower surface ED20 main body point-like compressed portion,
ED20t upper surface, ED20b lower surface,
EL20 linear pressing part (linear concave part),
H Folding part,
HMA adhesive,
a, b, c, d region bED10, c15 points,

Claims

Having a longitudinal direction, a width direction and a thickness direction perpendicular to each other;
An absorber having liquid absorbent fibers;
An absorbent article having a liquid-permeable sheet covering the absorber from the skin side in the thickness direction,
The absorbent body has one linear guiding portion along the longitudinal direction for guiding it to bend toward the skin side in the thickness direction at the center in the width direction,
The absorber has a plurality of point-like pressing parts on both sides in the width direction of the linear guiding part,
The linear guide portion includes a concave portion on at least one of the skin side and the non-skin side, and the density of the liquid absorbent fiber is higher in the center portion than in the width direction in the width direction,
The point-like compressed portion includes a concave portion on at least one of the skin side and the non-skin side, and the density of the liquid absorbent fiber is higher in the central portion than in the width direction in the width direction,
The central position in the thickness direction of the central portion of the linear guiding portion is located on the skin side in the thickness direction from the central position in the thickness direction of the central portion of the point-like compressed portion. Absorbent article.
The absorbent article according to claim 1,
The density of the liquid absorbent fibers is
The absorptive article characterized by being higher in the central part about the dotted compression part than the central part about the linear induction part.
In the absorptive article according to claim 1 or 2,
A liquid-impermeable sheet covering the absorber from the non-skin side in the thickness direction;
A wing portion provided to protrude outward in the width direction from the liquid-impermeable sheet,
On the non-skin side of the wing part in the thickness direction, a wing adhesive part for fixing the wing part to underwear is provided,
The length of the said linear guide part in the said longitudinal direction is longer than the length of the said longitudinal direction of the said wing adhesion part, The absorbent article characterized by the above-mentioned.
The absorbent article according to claim 3,
The absorbent article is provided with a plurality of folding portions along the width direction for folding with the liquid-permeable sheet inside.
One end of the linear guide portion in the longitudinal direction is provided on the outer side in the longitudinal direction from the folded portion of the plurality of folded portions,
The other end in the longitudinal direction of the linear guiding portion is provided on the outer side in the longitudinal direction from the other folded portion of the plurality of folded portions.
The absorbent article according to claim 3 or 4,
In the longitudinal direction,
The point-like squeezed part of the point-like squeezed part is provided at the same position as the one end in the longitudinal direction of the linear guiding part, or outside the one end,
Absorbency characterized in that the other point-like squeezed part of the point-like squeezed part is provided at the same position as the other end in the longitudinal direction of the linear guiding part or outside the other end. Goods.
In the absorptive article according to any one of claims 1 to 5,
The distance from the skin side surface of the absorbent article to the linear guide part at the center in the width direction of the linear guide part is smaller than the distance from the non-skin side surface of the absorbent article to the linear guide part. An absorbent article characterized by the above.
In the absorptive article according to any one of claims 1 to 6,
Between the linear guiding part and the pointed squeezing part adjacent to the linear guiding part and the width direction, the central part in the linear guiding part and the central part in the pointed squeezing part A region having a density of the liquid absorbent fiber lower than the density of the liquid absorbent fiber is provided.
In the absorptive article according to any one of claims 1 to 7,
In the width direction,
The absorbent article, wherein an interval between edges of the point-like compressed parts adjacent in the width direction is shorter than a length of the point-like compressed part.
In the absorptive article according to any one of claims 1 to 8,
The length of the said longitudinal direction of the said dotted | punctate pressing part is longer than the length of the said width direction, The absorbent article characterized by the above-mentioned.
In the absorptive article according to any one of claims 1 to 9,
The absorbent body has an absorbent core and a sheet member provided on the skin side of the absorbent core,
The plurality of point-like pressing parts are a plurality of main body point-like pressing parts that join the absorbent body and the liquid-permeable sheet, and a plurality of absorptions that join the absorbent core and the sheet member. Having a body-like squeezed part,
In the width direction,
The absorbent article characterized in that the center interval between the absorbent body point-like compressed parts adjacent in the width direction is narrower than the center distance between the body point-like compressed parts adjacent in the width direction.
The absorbent article according to claim 10,
A plurality of the absorber squeezed compressed parts include the absorber squeezed compressed parts in which the most concave portion from the skin side is separated from the liquid permeable sheet by a predetermined distance in the thickness direction. Absorbent article.
In the absorptive article according to any one of claims 1 to 11,
The linear guiding portion has a first region and a second region adjacent to each other in the longitudinal direction,
The said 1st area | region has the density of the said liquid absorptive fiber higher than the said 2nd area | region, The absorbent article characterized by the above-mentioned.
The absorbent article according to any one of claims 1 to 12,
In the width direction,
The absorptive article characterized by being equal in the interval of the centers of the dotted compression parts which adjoin in the width direction.
In the absorptive article according to any one of claims 1 to 13,
The absorbent article characterized in that the center interval between the point-like compressed parts adjacent in the longitudinal direction is shorter than the center distance between the point-like compressed parts adjacent in the width direction.