TW201711655A - Absorbent article - Google Patents

Abstract

An absorbent article (1) having: an absorbent body (30) arranged in at least an excretion orifice contact area (S1) and a rear area (S3); a skin-surface sheet (10) provided further on the skin surface side than the absorbent body (30); and a non-skin-surface sheet (20) provided further on the non-skin-surface side than the absorbent body (30). The absorbent body (30) has a first low basis weight area (41) that extends in the width direction (W), between the excretion orifice contact area (S1) and the rear area (S3). The skin-surface sheet (10) has an un-joined area (46) extending from the first low basis weight area (41) to an area further on the rear side than the first low basis weight area (41), said un-joined area (46) being not joined to a member provided further on the non-skin-surface side than the skin-surface sheet (10). The absorbent article (1) has a folding line (F2) around which the absorbent article (1) is folded, extending in the width direction (W) across an area further to the rear than the first low basis weight area (41) in the un-joined area (46).

Description

Absorbent article

The present invention relates to an absorbent article such as a sanitary napkin.

Absorbent articles for absorbing sanitary napkins, sanitary pads, incontinence pads, and the like for menstrual blood, secretions, and the like are known. In the absorbent article, in particular, the sanitary napkin is attached to the wearer's body by pressing the undergarment against the wearer's body (Patent Document 1 below). Absorbent articles such as sanitary napkins have a surface sheet, an inner sheet, and an absorbent body. The absorber is disposed between the surface sheet and the inner sheet. The absorber has a middle-high portion that protrudes convexly toward the skin contact surface side. The mid-high part is a part of the thicker absorber than the area other than the middle and high parts. The middle and high sections are individually installed in front of and behind the absorbent article. A rigid region is provided between the middle middle portion and the rear middle portion. The rigid region is a portion that compresses the absorbent body by embossing. The sanitary tampon is folded and individually packaged. One of the folded positions for the sanitary napkin is folded over the rigid region after the embossing of the absorbent body.

Advanced technical literature Patent literature

Patent Document 1: Japanese Laid-Open Patent Publication No. 2010-115368

Physiological sanitary napkins, such as physiological sanitary napkins for night use, are used in a sleeping position lying on their back. In the posture where the wearer is lying on his back, a gap is easily generated between the buttocks and the absorbent article. Specifically, since the buttocks of the wearer are crushed by the bed in the sleeping position, the rear side of the absorbent article is directed toward the submerged area of the absorbent article (exhaust port abutment field) due to the force from the buttocks. The side moves slightly. Thereby, deformation in the front-rear direction occurs in the vicinity of the region between the excretory opening abutment region and the rear side region. With this deformation, the absorbent article may be separated from the buttocks in the vicinity of the region between the excretory opening abutment region and the rear side region.

In particular, the sanitary napkin described in Patent Document 1 has a region between the excretion opening abutment region and the rear side region, and has a rigid region after the absorbing body is compressed by embossing and a rigid region. Folded position. Therefore, the absorbent article has a folding habit that forms a convex shape from the wearer's skin in a direction away from the position of the fold. Therefore, in the wearer's sleeping posture, the absorbent article is more easily deformed from the buttocks in the vicinity of the region between the excretory opening abutment region and the rear side region.

When a gap is formed between the buttocks and the absorbent article, there is a concern that body fluid (for example, menstrual blood) flows along the body to the back side and leaks from the back of the absorbent article. Also, the wearer feels that the menstrual blood flows to the body. In the case of the situation, there will be a feeling of uneasiness.

Here, it is desirable to have an absorbent article which can suppress the body fluid from flowing to the back side in the sleeping posture and reduce the feeling of discomfort of the wearer.

The absorbent article of the first aspect has a front-rear direction and a broad-side direction orthogonal to each other; a discharge port abutting region opposite to the drain opening of the installer; and a rear side of the discharge port abutting region a rear side field; an absorbent body disposed at least in the excretion opening abutment region and the rear side region; a skin surface sheet disposed on the skin surface side of the absorbent body; and a non-skin surface than the absorbent body The non-skin sheet-like absorbent article according to the aspect of the invention, characterized in that the absorbent body has a first low basis weight region extending in the width direction between the excretory opening contact region and the rear side region, and the skin The surface sheet has a non-joining region in which the region from the first low basis weight region to the rear side of the first low basis weight region is not joined to the member on the non-skin surface side of the skin sheet. The absorbent article has a fold line that folds the absorbent article, and the fold line extends in a direction along the width direction of a region on the rear side of the first low basis weight region in the non-joining region.

1‧‧‧Absorbables

10‧‧‧Skin sheet

20‧‧‧Non-skin sheet

30‧‧‧Acceptor

31‧‧‧Absorbent core

32‧‧‧ core cladding

33‧‧‧High and Medium Department

41‧‧‧1st low basis weight area

42‧‧‧2nd low basis weight area

43‧‧‧3rd low basis weight area

51‧‧‧1st crimping department

52‧‧‧2nd crimping department

53‧‧‧3rd crimping department

61‧‧‧1st body adhesion area

62‧‧‧2nd body adhesion area

81‧‧‧Front side press section

82‧‧‧Long side press section

84‧‧‧Back side press section

L‧‧‧ direction

W‧‧‧Broadside direction

T‧‧‧ thickness direction

S1‧‧‧Draining port abutment domain

S2‧‧‧ front side domain

S3‧‧‧ Back side domain

CL‧‧‧ center line

Fig. 1 is a plan view of an absorbent article according to an embodiment.

Fig. 2 is a plan view of the absorbent article as seen from the opposite side of Fig. 1.

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

Fig. 4 is a plan view of an absorber in an embodiment.

Fig. 5 is a perspective view of an absorbent article in use.

Fig. 6 is a schematic cross-sectional view of the absorbent article in use taken along line 6A-6A of Fig. 1 .

Fig. 7 is a schematic cross-sectional view of the absorbent article in use taken along line 7A-7A of Fig. 1 .

Fig. 8 is a schematic cross-sectional view of the absorbent article in use taken along line 3A-3A of Fig. 1 .

FIG. 9 is a plan view of the absorbent article folded along the fold line FL of FIG. 1. FIG.

Fig. 10 is a schematic side view of the absorbent article folded along the fold lines F1 to F3 of Fig. 9 .

[Formation for carrying out the invention]

Hereinafter, an absorbent article according to an embodiment will be described with reference to the drawings. The absorbent article may be any absorbent article such as a sanitary pad (discrete sheet), a sanitary napkin, an incontinence pad, or the like. The following embodiment is described as a disposable sanitary napkin as an example of an absorbent article.

In addition, in the description of the following drawings, the same or similar symbols are denoted by the same or similar parts. However, if the drawing is a pattern, it must Pay attention to the situation where the ratio of each size is different from the actual one. Therefore, the specific dimensions and the like must be judged by referring to the following description. Further, even if the drawings face each other, they may include portions having different dimensional relationships and ratios.

(1) The overall structure of the absorbent article

Fig. 1 is a plan view of an absorbent article according to an embodiment. Fig. 2 is a plan view of the absorbent article as seen from the opposite side of Fig. 1. Fig. 3 is a cross-sectional view of the absorbent article taken along line 3A-3A of Fig. 1.

The absorbent article 1 has a front-rear direction L, a widthwise direction W, and a thickness direction T. The front-rear direction L is a direction extending from the front side (ventral side) of the wearer toward the rear side (back side) or a direction extending from the rear side of the wearer toward the front side. The widthwise direction W is a direction orthogonal to the front-rear direction L. The thickness direction T is a direction extending from the skin surface side T1 of the wearer toward the non-skin surface side T2, and is a direction orthogonal to the front-rear direction L and the widthwise direction W. The skin side T1 is equivalent to the side facing the wearer's skin when in use. The non-skin side T2 corresponds to the side opposite to the skin side T1 when it is used, that is, the side opposite to the skin of the wearer.

The absorbent article 1 has a drain opening abutting domain S1, a front side domain S2, and a rear side domain S3. The excretory opening abutment field S1 is an area opposed to the user's excretory opening (for example, a vaginal opening). The excretory opening abutment field S1 is located in the lower part of the crotch when the absorbent article is attached to the underpants. That is, the excretory opening abutment field is disposed in the armpit of the installer, that is, in an area disposed between the legs of the wearer.

The front side domain S2 is located more in front than the drain port abutment domain S1 side. The front end edge of the front side region S2 defines the front end edge of the absorbent article 1. The rear side domain S3 is located further on the rear side than the drain opening abutment field S1. The rear end edge of the rear side region S3 defines the rear end edge of the absorbent article 1. The length of the front-back direction L of the rear side region S3 can be formed longer than the length of the front-rear direction L of the drain-port contact region S1.

A flap 3 to be described later may be provided in the drain opening abutment field S1. Further, the hip region 4 which is bulged outward in the widthwise direction W may be provided in the rear side region S3.

The front end edge of the flap 3 is defined by the root portion of the flap 3 and is located on the front side of the two portions which are recessed toward the inner side in the most wide direction W. The front end edge of the flap 3 may also define a boundary between the drain opening abutting domain S1 and the front side domain S2. The rear end edge of the flap 3 is defined by the root of the flap 3, and is located on the rear side of the two portions which are recessed toward the inner side in the most wide direction W. The rear end edge of the flap 3 may be located between the drain opening abutting domain S1 and the rear side domain S3. Here, a region between the front end edge of the flap 3 in the front-rear direction L and the rear end edge of the flap 3 is referred to as a "flap region". In the absorbent article having the flap, the excretory opening abutting region S1 is a region substantially the same as the flap region. Therefore, in the present specification, the description of the "discharge port abutment field S1" must be replaced with a "flap field".

The absorbent article 1 has a skin sheet 10, a non-skin sheet 20, and an absorbent body 30. The skin surface sheet 10 is provided on the skin surface side T1 more than the absorbent body 30. The non-skin surface sheet 20 is provided on the non-skin side T2 more than the absorber 30. The absorbent body 30 is thinly set on the skin Between the sheet 10 and the non-skin surface sheet 20.

The skin surface sheet 10 may have a surface sheet 11, a side sheet 12, and a second sheet 13. The surface sheet 11 is a liquid-permeable sheet that transmits a liquid such as a body fluid. The surface sheet 11 covers the center portion of the absorber 30 in the widthwise direction W. The surface sheet 11 may extend from the front side domain S2 to the rear side domain S3 in the front-rear direction L.

The surface sheet 11 is composed of any sheet-like material having a liquid-permeable structure such as a nonwoven fabric, a woven fabric, a perforated plastic sheet, or a mesh sheet. For the materials of weaving and non-woven fabrics, natural fibers and chemical fibers can be used.

The side sheet 12 covers the outer edge of the surface sheet 11 in the widthwise direction W, and extends outward from the surface sheet 11 in the widthwise direction W. Further, in the present embodiment, the absorbent article 1 has the side sheets 12, but the absorbent article 1 may not have the side sheets 12. At this time, the surface sheet 11 can cover the entire absorbent body 30.

The side sheets 12 may be composed of the same material as the surface sheets 11. However, in order to prevent the body fluid adhering to the surface sheet 11 from leaking out of the side sheet 12 to the outside of the absorbent article 1 in the widthwise direction W, it is preferable that the side sheet 12 has hydrophobicity or water repellency. The side sheets 12 can be disposed on the outer edges of the absorbent body 30 in the wide-side direction W, the flaps 3, and the hip-wings 4.

The second sheet 13 is provided between the surface sheet 11 and the absorber 30 at least in a non-joining region 46 to be described later. The second sheet 13 may extend from the front side domain S2 to the rear side domain S3 in the front-rear direction L. Replace the above In other words, the second sheet 13 may be provided only in the non-joining region 46 to be described later. Further, it is preferable that the second sheet 13 is narrower than the width of the absorbent core 31 to be described later in the widthwise direction W.

The second sheet 13 is a liquid-permeable sheet that transmits a liquid such as a body fluid. It is desirable that the hydrophilicity of the second sheet 13 is higher than that of the surface sheet 11. Specifically, the hydrophilicity of the second sheet 13 may be at least higher than the hydrophilicity of the surface sheet 11 in the non-joining region 46 to be described later. The second sheet 13 can be composed of the same material as the surface sheet 11.

The non-skin sheet 20 is a liquid impermeable sheet. As the non-skin surface sheet 20, a laminated nonwoven fabric mainly composed of a polyethylene sheet, polypropylene, or the like; a breathable resin film; and a sheet of a breathable resin film bonded to a nonwoven fabric such as spunbond or water needle may be used.

The absorber 30 is disposed at least in the drain port abutment domain S1 and the rear side domain S3. Further, the absorber 30 may extend from the drain opening abutting domain S1 to the front side domain S2. The absorbent body 30 has an absorbent core 31 containing an absorbent material that absorbs liquid, and a core cladding 32 that surrounds the absorbent core 31. The core clad layer 32 may cover the absorbent core 31 at least on the skin side of the absorbent core 31. In a specific example, the core clad layer 32 may have a sheet which is disposed on the skin surface side of the absorbent core 31 and a sheet which is disposed on the non-skin surface side of the absorbent core 31. The sheet on the skin surface side and the sheet on the non-skin surface side constituting the core clad layer 32 may be composed of the same sheet. The absorbing material constituting the absorbent core 31 can be formed, for example, of a hydrophilic fiber, a pulp, and a superabsorbent polymer (SAP). The core clad 32 can be composed, for example, of a non-woven fabric or a thin paper sheet.

Instead of the above embodiment, the absorber 30 may not have the core cladding layer 31. At this time, the absorbent core 31 may be covered by the skin surface sheet 10 and the non-skin surface sheet 20.

As described above, the absorbent article 1 has the flap 3 and the hip flap 4. The flap 3 and the hip joint 4 extend outward in the width direction W from the outer edge of the absorbent core 31 in the drain opening contact region S1.

The wing portion 3 and the hip portion 4 are formed by laminating the side sheet 12 and the non-skin sheet 20. The flap 3 is configured to be foldable toward the non-skin surface sheet 20. The flap 3 is folded over to the non-skin side of the crotch portion of the undergarment during use.

The hip wing 4 is located on the rear side of the flap 3 and is disposed in the rear side domain S3. The hip blade 4 is not folded when in use and is disposed between the undergarment and the buttocks of the wearer. In the present embodiment, the hip blade 4 is not provided with an absorbing material. Instead of the above configuration, an absorbent material may be provided on the hip blades 4.

(2) Detailed composition of the absorber

Next, the configuration of the absorber 30 will be more specifically described with reference to Figs. 1 to 4 . Fig. 4 is a plan view of the absorber 30 in the embodiment. The absorber 30 has a middle portion 33 at least in the drain opening abutment region S1. The middle portion 33 can also extend from the drain opening abutting domain S1 toward the front side domain S2. The middle portion 33 is disposed across the center line CL at the drain port abutment field S1. The middle portion 33 means a region where the thickness of the absorbent core 31 is thicker than the thickness of the absorbent core 31 in the region around the middle portion 33. The basis weight of the absorbing material of the middle-high portion 33 may also be an absorbent core in a region other than the middle-high portion 33 in the discharge port abutting region S1. The basis weight of 31 is higher. The middle portion 33 may be adjacent to the first low basis region 41 to be described later. It is desirable that the absorbent core 31 on the rear side of the first low basis weight region 41 is thinner than the thickness of the middle portion 33. More preferably, the absorbent core 31 of the entire rear side domain S3 is thinner than the thickness of the middle portion 33. The middle portion 33 has the highest portion having the thickest thickness and the inclined portion connecting the highest portion. The inclined portion may be disposed between the highest portion and a front side press portion to be described later, and may be disposed between the highest portion and the first low basis weight region 41.

The absorber 30 may have a first low basis weight region 41, a second low basis weight region 42, and a third low basis weight region 43. Here, the "low basis weight region" means a region formed by the absorbent core 31 having a lower basis weight than the surrounding absorbent core 31, or a region having no absorbent core 31. Thus, the "low basis weight region" is a concept including a region in which the basis weight of the absorbent core 31 is zero.

The basis weight of the absorbent core 31 in the low basis weight regions 41 to 43 is desirably 150 g/m ² or less, and more desirably 100 g/m ² or less. Further, it is more preferable that the basis weight of the absorbent core 31 in the low basis weight regions 41 to 43 is substantially 0 g/m ² . Further, the basis weight of the absorbent core 31 in the low basis weight regions 41 to 43 is preferably 60% or less of the basis weight of the absorbent core (excluding the middle and high portions) around the low basis weight regions 41 to 43, and is preferably 50% or less. Ideal.

Even when the "low basis weight region" is a region having no absorbent core 31, the core clad layer 32 may cover the entire absorbent core 31 across the low basis weight region. At this time, the absorber 30 can be integrally formed by the core clad 32 even if the absorbent core 31 is divided into a plurality of regions.

The first low basis weight region 41, the second low basis weight region 42 and the first The low basis weight region 43 is a boundary where the rigidity of the absorber 30 is changed. Therefore, the first low basis weight region 41, the second low basis weight region 42, and the third low basis weight region 43 correspond to a region where the absorber 30 is easily deformed.

The first low basis weight region 41 extends in the width direction W between the drain port abutment region S1 and the rear side region S3. The first low basis weight region 41 may extend linearly along the widthwise direction W or may extend along the broad side direction W curve.

The first low basis weight region 41 may be provided on the rear side more than the center of the fin 3 in the front-rear direction L, and may be provided on the front side than the rear side edge of the absorber 30. The first low basis weight region 41 may be provided across the rear end edge of the wing portion 3 in the front-rear direction L.

In the present embodiment, the first low basis weight region 41 has a curved shape in which the center of the wide side direction W of the first low basis weight region 41 protrudes rearward. More specifically, the center of the wide side direction W of the first low basis weight region 41 is located further rearward than the outer edge of the first low basis weight region 41. The length of the first low-basis weight region 41 in the front-rear direction L may or may not be constant.

It is preferable that the length of the first low basis weight region 41 in the wide side direction W is 25 mm or more. Thereby, it is possible to suppress the operation of the absorber 30 in the excretory opening abutment field S1 from being transmitted to the rear side domain S3. More preferably, the first low basis weight region 41 extends from one end of the absorber 30 to the other end in the widthwise direction W. At this time, the front end edge of the first low basis weight region 41 may define the rear end edge of the drain port abutment region S1, and the rear end edge of the first low basis weight region 41 may define the front end edge of the rear side region S3.

The length of the first low basis weight region 41 in the front-rear direction L is preferably 10 mm or more and 50 mm or less, more preferably 10 mm or more and 30 mm or less at the position of the center line CL of the absorbent article 1.

The second low basis weight region 42 extends in the front-back direction L along the center line CL of the absorbent article in the rear side region S3. The second low basis weight region 42 may extend in a straight line in the front-rear direction L. It is preferable that the second low basis weight region 42 is connected to the first low basis weight region 41.

The rear end edge of the second low basis weight region 42 may be located on the rear side more than the center of the rear side domain S3 in the front-rear direction. Further, the rear end edge of the second low basis weight region 42 may be located on the rear side more than the maximum width position P1 of the hip blade 4. The length of the second low basis weight region 42 in the front-rear direction L is preferably 120 mm or more, and more preferably 150 mm or more. It is preferable that the length of the second low basis weight region 42 in the wide side direction W is 1 mm or more and 15 mm or less. In the section along the front-rear direction L of the wearer's body, the groove (groove) between the buttocks exists in the region from the more perineal portion to the tailbone. The second low basis weight region 42 is disposed in the groin area of the wearer during use of the absorbent article.

The third low basis weight region 43 extends from the second low basis weight region 42 to the outer side in the wide side direction W in the rear side region S3. The third low basis weight region 43 can be connected to the second low basis weight region 42. The edge line of the front side of the third low basis weight region 43 may extend substantially in parallel in the width direction W inside the widthwise direction W. Moreover, the edge line of the front side of the third low basis weight region 43 may protrude forward in the outer side in the widthwise direction W. The edge line of the rear side of the third low basis weight region 43 is inclined toward the outside from the inner side in the wide side direction W toward the outer side. It can be inclined.

The outer edge of the third low basis weight region 43 in the widthwise direction W is located further inside than the outer edge of the absorbent core 31 of the rear side region S3. The third low basis weight region 43 may be provided in plural plural intervals in the front-rear direction L.

The absorbent article 1 may have a sheet in which the more absorbent core 31 of the core cladding layer 32 is located on the skin surface side, and a crimping portion in which the sheet cores on the non-skin side of the core layer 32 are pressed against each other. 51, 52, 53 (refer to Figure 4).

The first crimping portion 51 extends in the widthwise direction W along the first low basis weight region 41. The width of the first crimping portion 51 in the front-rear direction L is preferably smaller than the width of the first low basis weight region 41 in the front-rear direction L. Further, it is preferable that the first crimping portion 51 continuously extends from one end to the other end of the absorber 30 along the width direction W.

The second crimping portion 52 extends in the front-rear direction L along the second low basis weight region 42. The width of the second crimping portion 52 in the width direction W is preferably such that the width of the second low basis weight region 42 in the wider side direction W is smaller. The second crimping portion 52 may be connected to the first crimping portion 51.

The third crimping portion 53 extends along the third low basis weight region 43. The width of the third crimping portion 53 in the front-rear direction L is preferably smaller than the width of the third low basis weight region 43 in the front-rear direction L. The third crimping portion 53 may be connected to the second crimping portion 52.

The first crimping portion 51, the second crimping portion 52, and/or the third crimping portion 53 are preferably formed on the skin surface sheet 10. More specific In other words, the first crimping portion 51, the second crimping portion 52, and/or the third crimping portion 53 are formed by merely crimping the core cladding 32 or merely crimping the absorbent core 31 and the core cladding 32. Ideal. When the absorbent core is present in the low basis weight regions 41, 42, 43, the crimping portions 51, 52, 53 may be portions in which the absorbent core of the low basis weight regions 41, 42, 43 are crimped together with the core cladding 32. . When the absorbent cores are not present in the low basis weight regions 41, 42, and 43, the crimping portions 51, 52, and 53 may be portions in which only the low core cladding layer 32 is crimped. At this time, the absorbent core 31 is divided by the low basis weight regions 41, 42, 43 and the crimping portions 51, 52, 53 as boundaries. The crimping portions 51, 52, 53 can be formed by embossing. Further, since the crimping portions 51, 52, and 53 are covered by the skin surface sheet 10, they are not visible or difficult to visually recognize from the outside. Further, in place of the above embodiment, the first crimping portion 51, the second crimping portion 52, and/or the third crimping portion 53 may be formed on the skin surface sheet 10 and/or the non-skin surface sheet 20.

(3) Non-joining area between the surface sheet and the absorber

In the first low basis weight region 41, the skin surface sheet 10 has a non-joining region 46 (see FIGS. 1 and 3) which is not joined to the member on the non-skin surface side of the skin surface sheet 10. More specifically, the skin contour sheet 10 is not joined to the core cladding layer 32 in the non-joining region 46. The non-joining region 46 is indicated in Fig. 1 by a region enclosed by a broken line.

The non-joining region 46 may extend from at least one end of the first low basis weight region 41 in the wide-side direction W to the other end. Instead of the above configuration, the non-joining region 46 may not extend to both end portions of the first low basis weight region 41 in the widthwise direction W. The non-joining region 46 is at least from the first low basis weight region 41 may extend to the third low basis weight region 43 which is closest to the first low basis weight region 41 among the plurality of third low basis weight regions 43. Thereby, the skin surface sheet 10 can be lifted from the absorber 30 in the region of the first low basis weight region 41 and the rear side thereof.

(4) Press section

The absorbent article 1 has at least a press portion formed by compressing the absorbent core 31 in the thickness direction T. The press portion may include a front side press portion 81, a long side press portion 82, and a pair of rear side press portions 84 (see FIGS. 1 and 4).

The front side press portion 81 is provided at least in the drain port abutment region S1. The front side press portion 81 may also extend from the drain port abutment region S1 toward the front side region S2. The front side press portion 81 may be formed by compressing the surface sheet 11 and the absorbent core 31 and the core clad layer 32 in the thickness direction T. The front side press portion 81 has a section along the front-rear direction L provided on both sides of the wide side direction W of the middle-high portion 33. The front side press portion 81 may define a side edge in the wide side direction W of the middle portion 33.

The front side press portion 81 is bent in the widthwise direction W near the front end edge of the absorbent core 31, and is U-shaped continuously connected. Instead of the above configuration, the front side press portion 81 may be separately provided on both sides in the width direction W of the middle portion 33. In other words, the pair of front side press portions 81 may be separately provided in a form in which they are separated from each other.

The long side press portion 82 is provided on both sides of the rear side region S3 with the center line CL interposed therebetween, more specifically, the second low basis weight region 42 interposed therebetween. The long side The press portion 82 can be formed by compressing the absorber 30 and the surface sheet 11 in the thickness direction T.

The long side press portion 82 extends in the front-rear direction L. The long-side press portion 82 may extend linearly in the front-rear direction L or may be curved in a curve with respect to the front-rear direction L. The long side press portion 82 can be formed on the front side with respect to the maximum wide position P1 of the hip joint 4.

A pair of rear side press portions 84 are provided on both sides in the rear side region S3 with the center line CL interposed therebetween. The rear side press portion 84 can be formed by compressing the absorber 30 and the surface sheet 11 in the thickness direction. The pair of rear side press portions 84 are provided so as to be separated from each other by a center line CL passing through the center of the widthwise direction W of the absorbent article. The pair of rear side press portions 84 can be located on the rear side more than the maximum wide position P1 of the hip blades 4.

The absorbent article 1 may have a first press portion 85, a second press portion 87, and a third portion formed by at least two of the sheets constituting the skin surface sheet 10 and the non-skin surface sheet 20 pressed in the thickness direction T. Press section 86 (see Fig. 1). The first press portion 85, the second press portion 87, and the third press portion 86 are formed along the outer edge of the hip blade 4.

The absorbent article 1 may have a press portion 88 formed by pressing the skin dough sheet 10 at least in the first low basis weight region 41. It is preferable that the press portion 88 is formed only on the skin surface sheet 10 (see Fig. 1).

The press portion 88 may slightly extend beyond the first low basis weight region 41 to the front side in the front-rear direction L, but it is preferable that the intermediate portion 33 is present on the rear side. The press portion 88 may extend from at least the first low basis weight region 41 to the first of the plurality of third low basis weight regions 43 that is closest to the first low basis weight region 41. 3 low basis weight region 43. The press portion 88 is substantially the same as the non-joining region 46, or may be formed in a narrower region than the non-joining region 46.

The press portion 88 is preferably formed continuously in the front-rear direction L at least in the first low basis weight region 41. Here, as long as the press portion 88 is continuous in the front-rear direction L, it is not necessary to form a straight line. For example, the press portion 88 may have a zigzag shape in the front-rear direction L as shown in FIG. 1 . In place of this configuration, the press portion 88 may be formed continuously in a straight line in the front-rear direction L at least in the first low basis weight region 41.

It is desirable that the press portion 88 be formed in a lattice shape as shown in FIG. Specifically, the press portion 88 may have a plurality of first straight line patterns that are inclined with respect to the front-rear direction, and a plurality of second straight line patterns that are inclined with respect to the front-rear direction and the first straight line pattern. It is preferable that the press portion 88 is provided in a region narrower than the region of the second sheet 13.

(5) Adhesive area

As shown in Fig. 2, the absorbent article 1 has a first main body adhesive region 61, a second main body adhesive region 62, a flap adhesive region 63, and a hip joint provided with an adhesive for fixing the absorbent article 1 to the undergarment S. Adhesion area 64. These adhesive areas 61 to 64 are provided on the non-skin side of the non-skin surface sheet 20. The adhesive regions 61 to 64 may be covered by a release sheet before use. The release of the sheet is to prevent deterioration of the adhesive in the adhesive regions 61 to 64 before use. The release sheet is peeled off by the wearer at the time of use.

The first body adhesion region 61 is disposed further in front than the second body adhesion region 62. The first body adhesion region 61 and the second body adhesion region 62 extend in the front-rear direction L. The first body adhesion region 61 is disposed apart from the second body adhesion region 62 in the front-rear direction L. The first body adhesion region 61 may be disposed across the drain contact area S1 and the front side domain S2 on the front side from the first low basis weight region 41. The second body adhesion region 62 is disposed on the rear side region S3 on the rear side of the first low basis weight region 41. It is preferable that the first body adhesion region 61 and the second body adhesion region 62 are not provided on the center line CL. A flap adhesive region 63 is provided on the flap 3. The hip-wing region 64 is provided on the hip blade 4.

It is preferable that the first low basis weight region 41 is disposed in a region in the thickness direction T that does not overlap the adhesion regions 61 to 64. More specifically, the first low basis weight region 41 is provided in a region between the first body adhesion region 61 and the second body adhesion region 62.

It is preferable that the second low basis weight region 42 is disposed in a region in the thickness direction T in a region that does not overlap the adhesion regions 61 to 64. More specifically, the second low basis weight region 42 is provided between the plurality of second body adhesion regions 62.

It is preferable that the pair of long side press portions 82 are provided in a region overlapping the second body adhesion region 62.

(6) Absorbent articles in use

Next, the shape of the absorbent article in use will be described with reference to Figs. 5 to 8 . Fig. 5 is a perspective view of an absorbent article in use. Figure 6 It is a schematic cross-sectional view of the absorbent article in use along the line 6A-6A of Fig. 1. Figure 7 is a schematic cross-sectional view of the absorbent article in use taken along line 7A-7A of Figure 1 . Figure 8 is a schematic cross-sectional view of the absorbent article in use taken along line 3A-3A of Figure 1 . In addition, FIGS. 6 and 7 are lines which express the shape of the body of the wearer by a two-dot chain line.

When the absorbent article 1 as a sanitary napkin is used, the absorbent article 1 is fixed to the undergarment S. The drain opening abutment region S1 of the absorbent article 1 is a force that is sandwiched between the legs of the installer and is received from the outer side in the wide side direction W toward the inner side in the wide side direction W.

The cross-sectional shape of the body of the wearer along the widthwise direction W of the absorbent article 1 is different from the vicinity of the buttocks in the vicinity of the underarm. Specifically, the cross-sectional shape of the body near the armpit of the wearer (near the vaginal opening from the blood) is more prominent in the root of the labia majora and is convex toward the side of the absorbent article 1. shape. In the armpit field of the wearer, the drain opening abutment field S1 of the absorbent article is disposed to face each other. Under the armpit of the wearer, the excretory opening abuts the absorbent core 31 of the field S1, and particularly the middle portion 33 along the body, and the leakage of the body fluid in the crotch can be suppressed (see Fig. 6).

It is located at the rear of the perineum at the rear of the larger labia of the wearer, where the anus and the sulcus are located. The cross-sectional shape of the body near the rear of the perineal portion is a shape in which the center of the broad side is concave. The back side field S3 of the absorbent article is disposed opposite to the buttocks of the wearer.

A second low basis weight region 42 extending in the front-rear direction L along the center line CL is formed in the rear side region S3. Therefore, in the broad side direction W The center of the rear side region S3 is easily protruded toward the body of the wearer by the force from the outer side to the inner side of the absorbent article (see Fig. 7). Thereby, the absorbent article 1 can be deformed in the rear side domain S3 in accordance with the shape of the groove of the wearer. As a result, the wearer can obtain a comfortable feeling of adhesion to the absorbent article 1 on the buttocks.

Here, the shape of the absorbent article 1 in the excretory opening abutment field S1 and the rear side domain S3 to be fitted with the wearer's body is changed to a different shape. The first low basis weight region 41 suppresses the influence of the deformation of the absorber 30 in the drain port abutment region S1 on the deformation of the absorber 30 in the rear side region S3. That is, the absorbent article is easily deformed independently by the first low basis weight region 41 in the drain opening contact region S1 and the rear side region S3.

In addition, there are many cases where the sanitary napkin for the night is used in a sleeping position in the back. In the posture in which the wearer is lying on his back, a gap is easily generated between the buttocks and the absorbent article 1.

Specifically, since the buttocks of the wearer are crushed by the bed in the sleeping position, the rear side region S3 of the force absorbent article 1 from the buttocks may slightly move toward the drain opening contact region S1. Thereby, deformation in the front-rear direction L occurs in the vicinity of the region between the excretory opening abutment region S1 and the rear side region S3. By this deformation, a gap may be generated between the absorbent article 1 and the buttocks in the vicinity of the region between the excretory opening abutment region S1 and the rear side region S3.

When a gap is formed between the buttocks and the absorbent article, there is a concern that the menstrual blood flows to the back of the body and leaks from the back of the absorbent article. Moreover, when the wearer feels that the menstrual blood flows to the body, There is a feeling of uneasiness.

In the absorbent article 1 of one embodiment, the non-joining region 46 of the skin patch 10 is present at least in the first low basis weight region S1. Therefore, when the rear side region S3 of the absorbent article moves toward the drain opening contact region S1, the non-joining region 46 of the skin surface sheet 10 protrudes toward the body of the wearer (see the symbol "47" in Fig. 8). The protruding portion 47 of the skin-surface sheet 10 is buried in a gap with the body of the wearer. Thereby, even in the sleeping position, it is possible to suppress the passage of menstrual blood to the back of the body to the back side.

(7) Folding of absorbent articles

The absorbent article 1 can also be individually packaged in a folded state. Hereinafter, the folding of the absorbent article 1 will be described with reference to Figs. 1, 2, 9, and 10. Fig. 9 is a plan view of the absorbent article 1 folded along the fold line FL of Fig. 1. Fig. 10 is a schematic side view of the absorbent article folded along the fold lines F1 to F3 of Fig. 9.

The absorbent article 1 may have a front and rear fold line FL extending in the front-rear direction L, and a first fold line F1, a second fold line F2, and a third fold line F3 extending along the widthwise direction W. These fold lines FL, F1, F2, and F3 are lines for folding the absorbent article 1.

The front and rear fold lines FL can be disposed outside the outer end of the absorber 30 in the widthwise direction W. Further, the front and rear fold lines FL are provided inside the widthwise direction W more than the first press portion 85, the second press portion 87, and the third press portion 86.

The first fold line F1 is provided on the rear side more than the second fold line F2. The first fold line F1 can be provided on the rear side region more than the maximum width P1 of the hip flap 4. Further, the first folding line F1 may be provided between the long side press portion 82 and the rear side press portion 84 in the front-rear direction L. The first fold line F1 is preferably the third low basis weight region 43. Further, in the absorbent article 1 having a relatively short length of the rear side region S3 in the front-rear direction L, the first fold line F1 may not be provided.

The second folding line F2 is provided between the first folding line F1 and the third folding line F3 in the front-rear direction L. The second fold line F2 is a region that passes through the first lower base region 41 in the non-joining region 46 and is further rearward. The second fold line F2 can be disposed on the front side more than the pair of long side press sections 82. The second fold line F2 is preferably passed through the second body adhesion region 62.

The third folding line F3 is provided on the front side more than the second folding line F2. The third fold line F3 can be provided on the front side more than the highest portion of the middle portion 33. More specifically, the third folding line F3 is the highest portion that avoids the middle-high portion 33, and is preferably connected to the inclined portion of the highest portion of the middle-high portion 33. The third fold line F3 can be provided in the front side domain S2.

The absorbent article 1 is folded inwardly with the front and rear fold lines FL as a base point, and the non-skin surface side is exposed to the outside (see FIG. 9). In the state shown in FIG. 9, the absorbent article 1 is folded in the order of the first fold line F1, the second fold line F2, and the third fold line F3 (see FIG. 10).

The rear side edge 92 of the absorbent article is in the state of folding the absorbent article 1 and is located inside the absorbent article. The front side edge 91 of the absorbent article is positioned outside the absorbent article in the state in which the absorbent article 1 is folded. Further, the first crease F1 is located inside the folded absorbent article 1. unit. The second crease F2 and the third crease F3 are located outside the folded absorbent article 1.

(8) Action ‧ Effect

According to one embodiment, the absorber 30 has the first low basis weight region 41 extending in the width direction W between the drain port abutting region S1 and the rear side region S3. The skin surface sheet 10 has a member that is disposed from the first low basis weight region 41 to the rear side of the first low basis weight region 41 and is not provided on the non-skin side surface of the skin surface sheet 10 (for example, a core cladding layer). 32) Joined non-joined regions 46. The absorbent article 1 is a fold line F2 having a folded absorbent article 1 that extends in the widthwise direction W in a region on the rear side of the first low basis weight region 41 in the non-joining region 46.

Since the buttocks of the wearer are crushed by the bed in the sleep posture of the wearer, the rear side region S3 of the force absorbent article 1 from the buttocks may slightly move toward the drain opening contact region S1. In the absorbent article 1 of the present embodiment, the non-joining region 46 of the skin patch 10 is present at least in the first low basis weight region S1. Therefore, when the rear side region S3 of the absorbent article moves toward the drain opening contact region S1, the non-joining region 46 of the skin surface sheet 10 protrudes toward the body of the wearer (see the symbol "47" in Fig. 8).

Moreover, the fold line F2 of the folded absorbent article 1 is formed in a region on the rear side of the first low basis weight region 41 which is most likely to protrude toward the wearer side than the skin surface sheet 10. Therefore, it is possible to prevent the skin sheet 10 from being protruded by the folding habit due to the fold line F2. Again, fold Since the line F2 does not pass through the region of the absorbent core having a larger basis weight than the first low basis weight region 41, the fold line is less likely to occur. Therefore, in the first low basis weight region 41, the skin surface sheet 10 can be more easily protruded toward the skin of the wearer.

According to one embodiment, the adhesive region 62 is provided on the non-skin surface side of the non-skin surface sheet 20, and the fold line F2 passes over the adhesive region 62. Generally, the portion where the adhesive region exists is higher in rigidity than in the adhesive region. That is, the folding line F2 is a region in which the rigidity is increased in order to adhere the region 62. Thereby, the folding habit due to the fold line F2 can be prevented. Therefore, in the first low basis weight region 41, the skin surface sheet 10 can be more easily protruded toward the skin of the wearer.

According to one embodiment, the adhesive region 62 is disposed in a region that does not overlap the first low basis weight region 41. Thereby, the first low basis weight region 41 can further function as a deformation base point. That is, the absorbent cores 31 adjacent to each other across the first low basis weight region 41 are easily operated independently of each other. Thereby, the absorber 30 is more easily attached to the shape of the armpit and the buttocks of the wearer. Therefore, it is possible to provide an absorbent article that conforms to the wearer's body and provides a comfortable fit to the wearer.

According to one embodiment, a pair of long side press portions 82 extending in the front-rear direction L are formed on both sides of the center line CL connecting the center of the wide side direction W in the rear side region S3. The fold line F2 can be disposed on the front side more than the pair of long side press sections 82. In the attachment of the absorbent article, the region sandwiched by the pair of long side press portions 82 protrudes along the groove of the wearer. The folding line F2 is disposed on the front side of the pair of long side press portions 82, and is not blocked. The protrusion of the region sandwiched by the long side press portion 82 is hindered. Thereby, in the rear side domain S3, the absorbent article 1 can be easily protruded along the groove of the wearer.

According to one embodiment, the absorbent article 1 is folded in the order of the first fold line F1, the second fold line F2, and the third fold line F3. By folding the absorbent article 1 in this manner, the absorbent article 1 can be individually packaged in small size.

According to one embodiment, the absorber 30 has the third low basis weight region 43 extending from the second low basis weight region 42 to the outside in the widthwise direction W in the rear side region S3. The first fold line F1 passes through the third low basis weight region 43. The third low basis weight region 43 is a deformation base point that extends in the widthwise direction W. Since the absorbent core 31 of the rear side region S3 is deformable at the base point of the third low basis weight region 43, the absorbent article 1 is more easily bonded along the curve of the body longitudinal direction L. The absorbent article 1 is deformed by the curve of the buttocks in the front-back direction S3 in the front-back direction S3 by the fold line F1 in the third low basis weight region 43. Thereby, the absorbent article 1 can be more easily attached to the buttocks of the wearer, and the leakage of the body fluid can be further suppressed.

According to one embodiment, the third fold line F3 is an inclined portion that passes through the middle portion 33 as described above. Thereby, it is possible to prevent the folding habit from occurring at the highest portion of the middle-high portion 33. As a result, it is possible to suppress the middle-and-high portion 33 from being easily attached to the wearer's skin due to the folding habit.

As described above, the present invention will be described in detail using the above-described embodiments, but the present invention is obviously not limited to the embodiments described in the present specification. The present invention can be made without departing from the meaning and scope of the invention as set forth in the scope of the claims. Implemented for revisions and changes. Therefore, the description of the specification is intended to be illustrative, and is not intended to limit the invention.

In addition, the entire content of Japanese Patent Application No. 2015-132202, filed on Jun. 30, 2015, is hereby incorporated by reference.

[Industrial availability]

It is possible to provide an absorbent article which can suppress the passage of bodily fluids to the back of the body in a sleeping posture and reduce the uneasiness of the wearer.

1‧‧‧Absorbables

3‧‧‧ wing

4‧‧‧ hip wing

10‧‧‧Skin sheet

11‧‧‧Surface

12‧‧‧ side flakes

30‧‧‧Acceptor

33‧‧‧High and Medium Department

41‧‧‧1st low basis weight area

42‧‧‧2nd low basis weight area

43‧‧‧3rd low basis weight area

46‧‧‧Unjoined area

81‧‧‧Front side press section

82‧‧‧Long side press section

84‧‧‧Back side press section

85‧‧‧1st press section

86‧‧‧3rd press section

87‧‧‧2nd press section

88‧‧‧Squeeze Department

91‧‧‧ front edge

92‧‧‧back side edge

CL‧‧‧ center line

P1‧‧‧ position

S1‧‧‧Draining port abutment domain

S2‧‧‧ front side domain

S3‧‧‧ Back side domain

FL‧‧‧ front and rear fold lines

F1~F3‧‧‧ fold line

Claims (6)

An absorbent article having: a front-rear direction and a broad-side direction orthogonal to each other; a discharge port abutting region opposite to a drain opening of the wearer; and a rear side field located at a rear side of the discharge port abutment domain At least the absorbent body disposed in the excretion opening abutment region and the rear side region; the skin surface sheet disposed on the skin surface side of the absorbent body; and the non-skin surface side of the absorbent body An absorbent article according to the skin surface sheet, wherein the absorbent body has a first low basis weight region extending in a width direction between the excretion opening abutting region and the rear side region, wherein the skin surface sheet has The non-joining region in which the region from the first low basis weight region to the rear side of the first low basis weight region is joined to the member on the non-skin surface side of the skin sheet, the absorbent article A fold line having a folded outer absorbent article, wherein the fold line extends in a direction of the width of the back side of the first low basis weight region in the non-joining region. The absorbent article according to claim 1, wherein the absorbent article is provided on an adhesive region provided on the non-skin surface of the non-skin sheet, and the fold line passes through the adhesive region. The absorbent article according to claim 2, wherein the adhesive region is disposed in a region that does not overlap the first low basis weight region. The absorbent article according to any one of the first to third aspects of the present invention, wherein the both sides of the center line connecting the center of the widthwise direction are formed in the rear side region, and the side faces extending in the front-rear direction are formed. In the pair of long side press sections, the fold line is disposed on the front side more than the pair of long side press sections. The absorbent article according to any one of claims 1 to 3, wherein the fold line is a second fold line, and the absorbent article has a back side along the width direction of the second fold line a first fold line extending and a third fold line extending along the front side of the second fold line in the width direction, wherein the absorbent article is in the order of the first fold line, the second fold line, and the third fold line It is folded to form. The absorbent article according to claim 5, wherein the absorbent body has a third low basis weight region extending from the second low basis weight region to the outer side in the widthwise direction in the rear side region, the first The fold line passes through the aforementioned third low basis weight region.