KR102570212B1 - absorbent article - Google Patents

Abstract

An object of the present disclosure is to provide an absorbent article having a concave-convex structure in a topsheet, which suppresses a feeling of discomfort when worn and easily improves wearability. The absorbent articles 1, 10, when viewed in plan, have an excretory corresponding region 29 overlapping the absorber 12 in the thickness direction T and corresponding to the excretory port, and a width direction of the excretory corresponding region 29 ( W), the topsheet 8 includes excretory-adjacent regions 39 and 39' existing on both outer sides, and extends to the excretory-corresponding region 29, with side edge portions 7 and 7' as base ends. It protrudes outward on both sides of the width direction W in at least the area adjacent to the excretory port 39, 39', and is folded back at the outer ends 47, 47' in the width direction than the outer ends 47, 47'. has cushion portions 45 and 45' bonded to the seat member via joint portions 49 and 49' on the inner side thereof, and the topsheet 8 has a concavo-convex structure at least in the excretory corresponding region 29; The ends 47 and 47' do not have concavo-convex structures.

Description

absorbent article

The present disclosure relates to absorbent articles such as sanitary napkins, panty liners, and incontinence pads.

Since absorbent articles such as sanitary napkins, panty liners, and incontinence pads are worn for a long time while contacting the crotch of the wearer, a concave-convex structure is formed on the surface sheet of the absorbent article so as not to cause discomfort or discomfort to the wearer, An absorbent article in which the wearing feeling is improved by reducing the contact area with the skin has been studied.

As such an absorbent article, for example, in Patent Document 1, a liquid-permeable top sheet, a liquid-impermeable backsheet, and a liquid-retaining absorbent interposed between these two sheets are provided, and the absorbent article is formed substantially vertically. , In the topsheet, a first layer disposed on the skin side and a second layer disposed on the absorber side are laminated and partially joined at a junction of a predetermined pattern, and the first layer has a convex shape toward the skin side other than the junction. and the second layer is made of a material exhibiting elastomeric behavior, and the entire sheet is made of a three-dimensional sheet exhibiting elastomeric behavior, and the absorbent material is fixed in a stretched state in the longitudinal direction and/or width direction of the absorbent article. An item is offered. According to the absorbent article disclosed in Patent Literature 1, it is said that the wearability of the absorbent article can be improved.

Japanese Unexamined Patent Publication No. 2004-465

In the conventional absorbent article described in Document 1, since the topsheet is configured to cover the skin-contacting surface side and side surface of the absorber, the wearer wears the absorbent article, and the thighs of both legs of the wearer hold the absorbent article in the width direction. When pressed, the hardness of the absorber, which is harder than the topsheet, is easily transmitted to the thighs of the wearer's legs, and the first layer disposed on the skin side of the topsheet has a concavo-convex structure including a plurality of convex portions convex to the skin side. is formed, when the wearer moves the thighs of both legs back and forth by walking or the like, the plurality of convex portions abut against the thighs of the wearer's legs to easily give stimulation. As a result, the absorbent article may give a wearer a sense of discomfort.

Accordingly, an object of the present disclosure is to provide an absorbent article having a concavo-convex structure in a topsheet that suppresses a feeling of discomfort when worn and easily improves wearability.

The absorbent article according to the present disclosure,

A liquid-permeable topsheet having a skin facing surface and a skin non-facing surface as well as having a longitudinal direction, a width direction and a thickness direction, and an absorber and a sheet member positioned on the skin non-facing surface side of the topsheet, for fixing clothing As an absorbent article having an adhesive portion of,

The absorbent article, in plan view, overlaps with the absorber in the thickness direction and is adjacent to a pair of excretory ports existing on both outer sides of the excretory corresponding region in the width direction and corresponding to an excretory port. contain the area,

In the absorbent article, the topsheet extending in the excretory corresponding region has at least a pair of side edge portions overlapping in the thickness direction with opposite side edges of the absorber extending in the longitudinal direction as base ends. In each of the regions adjacent to the pair of excretory ports, the sheet protrudes outwardly on both sides in the width direction, and is folded back at the outer end in the width direction through a junction on the inner side in the width direction than the outer end. It has a pair of cushion parts formed by being joined to the member,

The topsheet is characterized in that it has a concavo-convex structure at least in the area corresponding to the excretion port, while having no concavo-convex structure at the outer end.

According to the present disclosure, it is possible to provide an absorbent article having a concave-convex structure in a topsheet that suppresses a feeling of discomfort when worn and easily improves wearability.

Fig. 1 is a plan view of a sanitary napkin 1 according to a first embodiment of the present disclosure or a sanitary napkin 10 according to a modified example, viewed from the topsheet side in the thickness direction in an unfolded state.
Fig. 2 is a perspective view of the sanitary napkin 1 according to the first embodiment of the present disclosure in an unfolded state.
FIG. 3 is a cross-sectional view of a longitudinal end surface of the sanitary napkin 1 according to the first embodiment of the present disclosure along a width-direction central axis C _L extending in the longitudinal direction.
Fig. 4 is a cross-sectional view of the sanitary napkin 1 according to the first embodiment of the present disclosure, taken along the IV-IV end surface of Fig. 1 .
FIG. 5 is an enlarged view of region X in FIG. 4 .
6 is a schematic view of a state in which the sanitary napkin 1 according to the first embodiment of the present disclosure is worn.
Fig. 7 is a sectional view corresponding to the IV-IV end surface of Fig. 1 of the sanitary napkin 10 according to the second embodiment of the present disclosure.
FIG. 8 is an enlarged view of the region Y in FIG. 7 .

[Aspect 1]

A liquid-permeable topsheet having a skin facing surface and a skin non-facing surface as well as having a longitudinal direction, a width direction and a thickness direction, and an absorber and a sheet member positioned on the skin non-facing surface side of the topsheet, for fixing clothing As an absorbent article having an adhesive portion of,

The absorbent article, in plan view, overlaps with the absorber in the thickness direction and is adjacent to a pair of excretory ports existing on both outer sides of the excretory corresponding region in the width direction and corresponding to an excretory port. contain the area,

In the absorbent article, the topsheet extending in the excretory corresponding region has at least a pair of side edge portions overlapping in the thickness direction with opposite side edges of the absorber extending in the longitudinal direction as base ends. In each of the regions adjacent to the pair of excretory openings, protrudes outward on both sides in the width direction, and is folded back at the outer end in the width direction through a joint on the inner side in the width direction than the outer end. It has a pair of cushion parts formed by being joined to the member,

The absorbent article according to claim 1, wherein the topsheet has a concavo-convex structure at least in the area corresponding to the excretion port, but does not have a concavo-convex structure in the outer end portion.

Since the absorbent article according to this aspect has a pair of cushion parts having a specific structure, when the wearer wears the absorbent article and the thighs of both legs of the wearer press the absorbent article in the width direction, the wearer wears the absorbent article on the thighs of both legs. Before the absorbent body comes into contact with each other, the thighs of both legs of the wearer are likely to sense the cushioning properties of the pair of cushioning parts. Then, when the thighs of both legs of the wearer further press the absorbent article in the width direction, until the absorber comes into contact with the thighs of both legs of the wearer, the thighs of both legs of the wearer gradually more strongly sense the cushioning properties of the pair of cushioning parts. easy. As a result, even if the thighs of the wearer's legs further press the absorbent article in the width direction and the absorbent body comes into contact with the thighs of the wearer's legs, the absorbent article according to the present embodiment is able to detect the hardness of the absorbent on the thighs of the wearer's legs. make it difficult Further, since the topsheet has a concavo-convex structure at least in the area corresponding to the excretory opening, but does not have a concavo-convex structure at the outer ends of the pair of cushioning portions, even if the wearer moves the thighs of both legs back and forth by walking or the like, It is difficult to receive stimulation from the pair of cushion parts. Therefore, in the absorbent article according to the present embodiment, the surface sheet has a concavo-convex structure, and it is easy to suppress discomfort when worn and improve wearability.

[Aspect 2]

Each of the pair of cushion parts has an upper cushion part located on the skin facing surface between the base end and the junction part, and a lower cushion part located on the skin non-facing surface between the base end and the junction part, The absorbent article according to aspect 1, wherein the lower cushion portion is separated from the seat member.

In the absorbent article according to the present aspect, since each pair of cushioning parts has a specific structure, each of the pair of cushioning parts is easily deformed along the shape of the thighs of the wearer's legs, so that the absorbent body is In an absorbent article having a concavo-convex structure in which the surface sheet has a concavo-convex structure, it is easy to suppress discomfort during wearing and improve wearability by making it difficult to detect hardness.

[Aspect 3]

The absorbent article according to aspect 1 or 2, wherein each of the pair of cushion portions is not bonded to each other.

In the absorbent article according to the present aspect, since each of the pair of cushioning parts has a specific structure, the flexibility of the cushioning part is less likely to be lost, and it is difficult to sense the hardness or irritation of the absorber that the thighs of the wearer's legs receive, It is easy to suppress the discomfort at the time of wearing.

[Aspect 4]

The absorbent article according to any one of Aspects 1 to 3, wherein the topsheet is made of an air-through nonwoven fabric, and the outer surface of each of the pair of cushion portions is an air surface.

In the absorbent article according to the present aspect, since the topsheet is made of an air-through nonwoven fabric arranged in a specific shape, the outer surfaces of the pair of cushion parts have a smooth feel, and even if the thighs of the wearer's legs come into contact with the cushion parts, they are not sensitive to the skin. There is little irritation, and it is easy to suppress the discomfort at the time of wearing.

[Aspect 5]

The concavo-convex structure is formed between a plurality of grooves composed of embossed portions extending continuously or intermittently in the longitudinal direction and juxtaposed in the width direction, and two adjacent grooves among the plurality of grooves in the width direction. The absorbent article according to any one of Aspects 1 to 4, which is a furrow ridge structure composed of extended ridge portions.

Since the absorbent article according to the present aspect has a specific concavo-convex structure, the liquid discharged from the wearer easily diffuses in the longitudinal direction, but it is difficult to diffuse in the width direction, and the cushion portion has many chances of contact with the thighs of the wearer's legs. It is difficult for the liquid to reach the surface, and it is easy to induce deformation in the width direction of the absorbent article, making it difficult to sense the hardness or irritation of the absorber received by the wearer's thighs. As a result, the absorbent article according to the present disclosure tends to suppress discomfort when worn.

[Aspect 6]

The absorbent article further includes a second sheet present between the topsheet and the absorber in the thickness direction at least in a part of the area adjacent to each of the excretory ports,

Each of the both ends of the second seat in the width direction overlaps with each of the pair of cushion parts in the thickness direction and is not joined to each of the pair of cushion parts In any one of aspects 1 to 5, Absorbent article as described.

In the absorbent article according to this aspect, since the second seat is arranged in a specific form in relation to the cushion portion, the cushion portion is difficult to collapse and the flexibility thereof is difficult to be damaged, and the hardness of the absorber received by the thighs of the wearer's legs and It is easy to suppress the sense of discomfort at the time of wearing by making it difficult to detect a stimulus.

[Aspect 7]

The absorbent article according to any one of Aspects 1 to 6, wherein the sheet member is disposed at a position closer to the skin facing surface than the absorber.

In the absorbent article according to the present aspect, since the sheet member is arranged in a specific form in relation to the absorber, the absorber does not exist at a position overlapping the cushion portion in the thickness direction, and the shape of the thighs of the wearer's legs of the cushion portion is changed. It is difficult to impede the deformation along As a result, the absorbent article according to this aspect tends to suppress discomfort when worn.

[Aspect 8]

The absorbent article according to any one of aspects 1 to 7, wherein the absorbent body has a constricted portion in the width direction in the excretory corresponding region as compared to regions other than the excretory corresponding region.

In the absorbent article according to the present aspect, since the absorber has a specific shape, it is easy to suppress the chance of contact between the absorber and the thighs of the wearer's legs in the area corresponding to the excretion area, and the absorbent body can be worn on the thighs of the wearer's legs as described above. Since it is easy to contact through the cushion portion, it is difficult to sense the hardness or irritation of the absorber that the thighs of both legs of the wearer receive, and it is easy to suppress the discomfort during wearing.

[Aspect 9]

Aspect 1, wherein the absorbent article has a pair of crimping portions on the topsheet and the absorbent body, at least in the area corresponding to the excretion port, and each of the pair of crimping portions extends along each of the pair of side edge portions. The absorbent article according to any one of -8.

Since the absorbent article according to the present aspect has a predetermined crimping portion, the cushion portion rises toward the skin facing surface from the crimping portion as a starting point and is easily deformed along the shape of the thighs of the wearer's legs, so that the wearer's thighs receive It is easy to suppress the discomfort at the time of wearing by making it difficult to perceive the hardness and stimulation of an absorber.

[Aspect 10]

The absorbent article according to any one of Aspects 1 to 9, wherein, in a natural state, the maximum height of the pair of cushion portions is higher than the maximum height of the excretory corresponding region.

In the absorbent article according to the present aspect, the maximum height of the pair of cushioning parts in a natural state and the maximum height of the excretory corresponding region have a predetermined relationship, and each of the pair of cushioning parts follows the shape of the thighs of both legs of the wearer. Since it is easily deformed, it is easy to make it difficult to sense the hardness and stimulation of the absorber that the thighs of both legs of the wearer receive, and to suppress the discomfort during wearing.

Hereinafter, preferred embodiments of the absorbent article of the present disclosure will be described in detail with reference to the drawings. In this specification, unless otherwise specified, "viewing an object (e.g., an absorbent article, an absorber, etc.) placed on a horizontal surface in an unfolded state from above in its thickness direction" is defined as "when viewed from a plane." 」

Various directions and the like used in this specification are as follows unless otherwise specifically requested.

In this specification, "longitudinal direction" refers to "the direction in which the length of a vertically long object is long when viewed from a plane", and "width direction" refers to "the direction in which the length of a vertically long object is short when viewed from a plane" ( short length direction)”, and the “thickness direction” refers to the “vertical direction with respect to the object placed on the horizontal surface in the unfolded state”. These longitudinal directions, width directions, and thickness directions are mutually orthogonal to each other.

In addition, in this specification, in the width direction of a vertically long object (eg, an absorbent article, an absorbent body, etc.), "the relatively proximal side with respect to the central axis ( _CL ) in the width direction extending in the length direction" is defined as "Inner side in the width direction" is referred to as "inner side in the width direction", and "side relatively distal to the central axis line _CL in the width direction in the width direction of the vertically long object" is referred to as "outer side in the width direction". .

In addition, in this specification, "one side of the absorbent article that is relatively proximal to the wearer's abdomen when the wearer wears the absorbent article in the longitudinal direction" is referred to as "front side of the absorbent article", and "length of the absorbent article" In terms of direction, the other side that is relatively distal to the wearer's abdomen (ie, relatively proximal to the wearer's back) when the wearer wears the absorbent article is referred to as the "rear side of the absorbent article". In addition, in this specification, the front region and the rear region of an absorbent article refer to the front region and the rear region of the absorbent article, respectively.

In this specification, unless otherwise specified, in the thickness direction of the absorbent article, "when the absorbent article is worn, the wearer's skin facing surface is relatively proximal to the wearer" is referred to as the "skin facing surface side", "Relatively distal side with respect to the surface facing the wearer's skin when the absorbent article is worn" is referred to as the "non-skin facing surface side". In addition, in this specification, the "surface on the side of the skin facing surface" and the "surface on the side of the non-skin facing surface" of various members constituting the absorbent article (e.g., top sheet, absorber, back sheet, etc.) are simply referred to as "skin facing surface". ” and “non-skin facing surface”.

[First Embodiment]

[Basic composition of absorbent article]

Fig. 1 is a plan view of a sanitary napkin 1 according to a first embodiment of the present disclosure, viewed from the topsheet side in the thickness direction in an unfolded state. Fig. 2 is a perspective view of the sanitary napkin 1 according to the first embodiment of the present disclosure in an unfolded state. FIG. 3 is a cross-sectional view of a longitudinal end surface of the sanitary napkin 1 according to the first embodiment of the present disclosure along a width-direction central axis C _L extending in the longitudinal direction. Fig. 4 is a cross-sectional view of the sanitary napkin 1 according to the first embodiment of the present disclosure, taken along the IV-IV end surface of Fig. 1 . FIG. 5 is an enlarged view of region X in FIG. 4 . In Fig. 1, the upper side of the drawing corresponds to the front side of the absorbent article, and the lower side of the drawing corresponds to the rear side of the absorbent article.

As shown in Figs. 1 to 5, the sanitary napkin 1 according to the present embodiment has a vertically elongated outer shape having a longitudinal direction (L) and a width direction (W) in plan view, , Specifically, an absorbent body portion 2 having a longitudinal direction and a width direction and overlapping an absorbent body 12 described later in the thickness direction T, and a width direction W of the absorbent body portion 2 It is constituted by a pair of absorbent side portions 3, 3' existing on both outer sides of , a front end portion 4, and a rear end portion 5.

In the sanitary napkin 1 according to the present embodiment, the boundary between the absorbent body portion 2 and the pair of absorbent side portions 3 and 3', respectively, in the longitudinal direction L is ), and is partitioned by a pair of side edge portions 7 and 7' overlapping in the thickness direction T with both side edges 6 and 6' of the absorber 12 extending in a direction. Further, in the sanitary napkin 1 according to the present embodiment, the length in the longitudinal direction L of each of the pair of absorbent side portions 3 and 3' is an absorbent body extending in the longitudinal direction L It is equal to the length of the pair of side edge portions 7 and 7' overlapping the opposite side edges 4 and 4' of (12) in the thickness direction T.

Further, in the sanitary napkin 1 according to the present embodiment, each of the pair of absorbent side portions 3, 3' is forward of the central portion of the absorbent body portion 2 in the longitudinal direction L. At a nearby position, it includes substantially trapezoidal flap portions 11 and 11' extending outward in the width direction W.

As shown in FIGS. 1 to 5, the absorbent body portion 2 includes a liquid-permeable topsheet 8 positioned on the side of the skin facing surface of the sanitary napkin 1 in the thickness direction T; A water-repellent side sheet 13, 13' located on the side of the surface that is not facing the skin from the topsheet 8, an absorber 12 located on the side of the surface that is not facing the skin from the side sheets 13, 13', and the absorber 12 ) and a back sheet 14 located on the non-skin facing side of the back sheet 14, and a plurality of adhesive portions for fixing the garment that are disposed on the non-skin facing surface of the back sheet 14 and extend continuously or intermittently in the width direction W 15, and the absorbent body portion 2 is configured to absorb and retain liquid excretion such as menstrual blood or urine discharged from the wearer in the thickness direction T while being absorbed by the absorber 12. .

On the other hand, as shown in Figs. 1 to 5, each of the pair of flap portions 11 and 11' is a side sheet located on the side of the skin facing surface of the sanitary napkin 1 in the thickness direction T. (13, 13'), the backsheet 14 located on the non-skin facing side of the side sheets 13, 13', and the longitudinal direction L disposed on the non-skin facing surface of the backsheet 14. It is provided with adhesive portions 17 and 17' for fixing the extended wear.

In addition, when the sanitary napkin 1 is worn, the skin-facing surface of the absorbent body portion 2 is adhered to the skin-facing surface of the wearer's undergarment via the adhesive portion 15, and then the pair of flap portions 11 and 11' are attached to the non-skin-opposite surface of the undergarment via adhesive portions 17 and 17' while being folded back to the non-skin-facing surface of the undergarment, respectively, to be fixed to the undergarment. Accordingly, the non-skin facing surfaces of the pair of flap portions 11 and 11' become surfaces facing the wearer's skin when the sanitary napkin 1 is worn.

Here, the adhesive portion 15 in the absorbent body portion 2 and the adhesive portions 17 and 17 in the respective flap portions 11 and 11' for fixing the sanitary napkin 1 to the wearer's underwear ') is not particularly limited as long as it can fix the sanitary napkin 1 to the wearer's underwear, and any adhesive such as a styrene-based polymer can be used. In addition, since the pair of flaps described above are not essential components in the present disclosure, the absorbent article of the present disclosure may not have the pair of flaps.

In the sanitary napkin 1 according to the present embodiment, each of the front end 4 and the rear end 5 is, as shown in FIG. 1, the front side of the sanitary napkin 1 in plan view. A front edge portion 23 in the longitudinal direction (L) located at , and a rear edge portion 25 located in the longitudinal direction (L) on the rear side of the sanitary napkin 1 are provided.

Further, the absorbent body portion 2 of the sanitary napkin 1 according to the present embodiment has a front region 27 located near the front end 4 of the sanitary napkin 1 along the longitudinal direction L. ), a rear region 31 located near the rear end 5 of the sanitary napkin 1, and an excretory corresponding region 29 located between these regions 27 and 31.

1, each region 27, 29, 31 described above is a virtual straight line of two lines extending in the width direction W, that is, each bonding portion of the pair of flap portions 11, 11'. A pair of first ends 33, 33' located on the front side in the longitudinal direction L among both ends 33, 35, 33', 35' in the longitudinal direction L of (17, 17') ) to include a first imaginary straight line (L ₁ ) extending in the width direction (W) and a pair of second ends (35, 35 ') located on the rear side in the longitudinal direction (L) Each is divided by the second imaginary straight line L ₂ extending in the width direction W.

In the excretory corresponding region 29, as will be described later, the topsheet 8 and the absorbent body 12 are compressed in the thickness direction T, and a pair of side edge portions 7, 7' are provided. Accordingly, a pair of extended crimping portions 37 and 37' are provided.

Here, in the present specification, "excretory corresponding region" refers to an area that opposes or contacts the excretory port of the wearer when the absorbent article is worn, and refers to the type and use of the absorbent article (specifically, liquids such as urine, feces, menstrual blood, etc.) This area is appropriately set for each type of absorbent article according to the type of excrement, the age or gender of the target wearer, etc.). In addition, the excretory port corresponding region is usually located at approximately the center or near the front side of the absorbent article in the longitudinal direction (for example, when the absorbent article has an absorbent body portion and a flap portion, in plan view, in the absorbent body portion, When the absorbent article is at a position near the front side overlapping with the flap portion in the longitudinal direction and the absorbent article is composed of an absorbent body portion having a constriction inward in the width direction at a substantially central portion in the longitudinal direction, the absorbent body portion in plan view It is a position corresponding to the constricted portion in , and, when the absorbent article is composed of an elliptical absorbent body, it is a position of a substantially central portion spanning the central axis in the longitudinal direction extending in the width direction of the absorbent body.) , the length in the longitudinal direction of about 1/3 or more of the total length in the longitudinal direction of the absorbent article and the length in the width direction of about 1/3 or more of the total length in the width direction of the absorbent article. In some cases, the length of the excretory corresponding region in the longitudinal direction is less than 1/3 of the total length of the absorbent article in the longitudinal direction.

In addition, in each of the pair of absorbent side portions 3, 3' of the sanitary napkin 1 according to the present embodiment, excretory adjacent regions (excreting on both outer sides of the excretory corresponding region 29 in the width direction W) ( 39, 39') exist. Each of the areas adjacent to the excretory opening 39, 39' exists adjacent to the excretory opening correspondence area 29 in the width direction W and is a pair of side edge portions 7 in the sanitary napkin 1; 7') It is a region extending with each of the ends in the width direction (W) extending in the longitudinal direction (L) of the pair of absorbent side portions (3, 3') with each of them as the base end as the longitudinal end. . Further, in the present embodiment, both ends of the pair of absorbent side portions 3 and 3' in the width direction W extending in the longitudinal direction L of the flap portions 11 and 11' It coincides with both ends in the width direction W extending in the longitudinal direction L.

Hereinafter, various members constituting the absorbent article of the present disclosure will be described in more detail using the sanitary napkin 1 according to the above-described embodiment.

[Surface sheet]

In the sanitary napkin 1 according to the present embodiment, the topsheet 8 extends from the front edge 23 to the rear edge 25 in the longitudinal direction L, as shown in FIGS. 1 and 3 . , and is disposed on the skin facing surface side in the thickness direction T in an area including part of the absorbent body portion 2 and the absorbent side portions 3 and 3' in the width direction W, and is disposed on the wearer's skin It is constituted by a liquid-permeable sheet member that can directly come into contact with the opposite surface. In this embodiment, the topsheet 8 has a two-layer structure of a first sheet 8a positioned on the skin-facing surface side and a second sheet 8b positioned on the non-skin-facing surface side.

The liquid-permeable sheet member constituting the topsheet 8 is not particularly limited as long as it has various properties (eg, liquid permeability, flexibility, touch, etc.) that can be used as a topsheet of an absorbent article. For example, cellulose fibers Alternatively, nonwoven fabrics such as spunlace nonwoven fabrics and air-through nonwoven fabrics formed using hydrophilic fibers such as thermoplastic resin fibers subjected to hydrophilization treatment can be used. Among them, the first sheet 8a of the topsheet used in the absorbent article of the present disclosure is preferably made of an air-through nonwoven fabric from the viewpoint of touch, as will be described later, and the topsheet 8 in the present embodiment The first sheet 8a is also formed of an air-through nonwoven fabric.

On the other hand, the second sheet of the topsheet is a sheet member, also called a second sheet, and it is preferable that the second sheet is a liquid-permeable fibrous sheet in which constituent fibers are synthetic fibers. The second sheet is preferably an air-through nonwoven fabric in which intersecting synthetic fibers are bonded to each other by thermal fusion using an air-through method. In addition to the air-through nonwoven fabric, a point bond nonwoven fabric, a spunbond nonwoven fabric, a spunlace nonwoven fabric, or the like may be used. When the second sheet is an air-through nonwoven fabric, the basis weight thereof is preferably within a range of 15 g/m 2 to 40 g/m 2 .

In addition, the topsheet 8 in this embodiment is constituted by a two-layer structure of a first sheet 8a and a second sheet 8b, but in the absorbent article of the present disclosure, the second sheet is an essential component. Otherwise, in the absorbent article of the present disclosure, the top sheet may be formed of only the first sheet. Further, in the absorbent article of the present disclosure, the second sheet (second sheet) may be a sheet member included in the absorbent article as a component separate from the top sheet.

In the sanitary napkin 1 according to the present embodiment, the topsheet 8 extends over the entire width direction W of the absorbent main body 2, as shown in Figs. It has a gyrus-sulcus structure parallel to the longitudinal direction L over the entire area from the front edge 23 to the rear edge 25 of the napkin 1 . However, the topsheet 8 does not have a furrow-furnace structure at the outwardly extending portions of each of the pair of side edge portions 7 and 7'. More specifically, in the topsheet 8, a plurality of ridges 41 and a plurality of ridges 43 each extend in the longitudinal direction L, and one of the plurality of ridges 41 The ridges 41 and one of the ridges 43 are arranged alternately in the width direction W. That is, the furrow-furrow structure of the topsheet 8 includes a plurality of furrows 43 extending in the longitudinal direction L and juxtaposed in the width direction W, and a plurality of furrows in the width direction W. It consists of a ridge portion 41 extending between two adjacent groove portions 43 of the portion 43 .

Furthermore, in the sanitary napkin 1 according to the present embodiment, the plurality of grooves 43 are embossed portions formed by heat embossing. In the heat embossing treatment, among the surfaces of the topsheet 8 located on the side facing the skin, a large number of mutually spaced parts are compressed in the thickness direction T and heated. Thus, in the topsheet 8, the grooves 43 having a predetermined depth are formed by integrating the first sheet 8a and the second sheet 8b.

The embossed portion in the absorbent article of the present disclosure may be formed by, for example, a method of embossing by passing a topsheet and a second sheet between an embossed roll having patterned convex portions and a flat roll. In this method, heating at the time of compression is possible by heating an emboss roll and/or a flat roll. Examples of the embossing pattern of the embossing roll include a lattice pattern, a zigzag pattern, and a wavy pattern. Further, intermittent embossed portions are formed in each of the lattice pattern and zigzag pattern, and continuous embossed portions are formed in the wavy pattern. In addition, the pitch of the embossed portions (i.e., the spacing of the furrows) is usually 0 to 10 mm, preferably 0.5 to 2 mm in the longitudinal direction, and usually 0.1 to 10 mm, preferably 1 to 2 mm in the width direction. 4 mm. Further, the depth of the embossed portion is 0.1 to 5 mm, preferably 0.1 to 1 mm.

In addition, in this specification, the height or thickness of an object (ridge part, seat member, cushion part, etc.) is measured as follows. The measurement is carried out using a sample of 100 mm × 100 mm cut out from the absorbent article and a laser displacement meter (e.g., high-precision two-dimensional laser displacement meter LJ-G series manufactured by Keyence Corporation (model: LJ-G030)), It is carried out in a non-contact manner as follows. The sample is placed on a horizontal measuring table, and displacements from the measuring table are measured with a laser displacement meter for the other 5 parts, and the average value of the 5 measured values is taken as the height or thickness (mm) of the object.

In the topsheet, for example, a plurality of grooves composed of embossed portions formed by the above method continuously or intermittently extend in the longitudinal direction. When the topsheet has such a furrow-furrow structure, the liquid discharged from the wearer is easily diffused in the longitudinal direction of the absorbent article, while it is less diffused in the width direction than in the longitudinal direction, so that the liquid discharged from the wearer is less likely to diffuse in the wearer's thighs. It is difficult for the liquid to reach a portion with many contact opportunities (ie, a pair of cushion portions to be described later). In addition, when the topsheet has the ridge-furnace structure, a difference in stiffness is generated between each ridge portion and the boundary between each trough portion, so that it is easy to induce deformation in the width direction of the absorbent article according to the wearer's body shape. As a result, the absorbent article according to the present disclosure tends to suppress discomfort when worn.

Further, in the sanitary napkin 1 according to the present embodiment, the topsheet 8 extends over the entire width direction W of the absorbent main body 2 and extends from the front edge 23 to the rear edge ( 25) has a gyrus-sulcus structure parallel to the longitudinal direction L, but in the absorbent article according to the present disclosure, it is not limited to this aspect, and the topsheet has irregularities at least in the area corresponding to the excretory opening. It has a structure, and it has a structure which does not have a concavo-convex structure in a pair of side area|region, more preferably, the outer edge part of a pair of cushion parts mentioned later. With this configuration, the absorbent article has a concavo-convex structure in the excretory corresponding region where there is the greatest chance of absorbing liquid excretion such as blood or urine, so that the contact area with the wearer's skin is reduced, and liquid permeability and entrainment are reduced. On the other hand, since the concavo-convex structure is not provided in the part where the wearer has many chances of contact with the femur, even if the wearer walks and moves both legs back and forth, the plurality of convex parts in the concavo-convex structure can be worn by the wearer. It is less likely to cause stimulation by contacting the femur of both legs.

In addition, the concavo-convex structure in the absorbent article of the present disclosure is not limited to the above-mentioned aspects, for example, Japanese Patent No. 4809197, Japanese Patent Laid-Open No. 2009-279098, Japanese Patent Laid-Open No. 2010-115479, and Japanese Unexamined Patent Publication 2015 -107151, Japanese Unexamined Patent Publication No. 2016-112234, etc. can be formed by various methods described.

In addition, the size of the topsheet is not particularly limited as long as it can cover the skin-facing surface of the absorber and form a pair of cushion portions described later, and is arbitrary depending on the size, gender, use, etc. of the person to wear the absorbent article. The dimension shape of can be adopted. In addition, the basis weight of the topsheet is not particularly limited as long as the effect of the present disclosure is not impaired. For example, a basis weight within the range of 5 g/m 2 to 100 g/m 2 can be employed, but in view of liquid permeability and flexibility, 20 g The basis weight is preferably within the range of /m 2 to 50 g/m 2 . In addition, in this specification, basis weight can be measured according to 5.2 of JIS L 1906.

[Absorber]

Next, an absorber that can be used for the absorbent article of the present disclosure will be described. In the sanitary napkin 1 according to the present embodiment, as shown in Figs. 1, 3, 4 and 5, the absorbent body 12 comprises a top sheet 8 and a back sheet in the thickness direction T. 14, and is an absorbent member having a function of absorbing and retaining the wearer's liquid excrement that has passed through the topsheet 8. As shown in FIG. 1, the absorber 12 is vertically long with each end edge on the front side and the rear side in the longitudinal direction L protruding in an arc shape in the front side and the rear side, respectively, in plan view. In the central region having an external shape and including a central axis C _L in the width direction extending in the longitudinal direction L of the sanitary napkin 1, from the front region 27 to the rear region 31, It is arranged so that it extends across.

In the absorbent article of the present disclosure, the absorber is not particularly limited, and any absorber known in the art can be used. Such an absorbent may contain, for example, an absorbent material containing absorbent fibers such as pulp and/or a superabsorbent polymer. In addition, the absorbent article of the present disclosure may further include at least one liquid-permeable covering sheet such as a tissue covering the absorbent body (so-called core wrap).

In the absorbent article of the present disclosure, the thickness of the absorber is not particularly limited as long as the effect of the present disclosure is not impaired, and for example, a thickness within the range of 0.1 mm to 10 mm can be employed, but in terms of absorbency, flexibility, etc., 0.3 A thickness within the range of mm to 3 mm is preferred.

In addition, in the present disclosure, the absorber is not limited to the above-described aspect, and the absorber may have any external shape such as a rectangle, an ellipse, or an hourglass shape. It may be arranged biased toward the rear.

For example, in the modified example of the sanitary napkin 1 according to the present embodiment, the absorbent body has an hourglass shape. In this modified example, the absorber has a pair of constricted portions narrowed in the width direction W in the area corresponding to the excretion port. More specifically, in the pair of constricted portions, when viewed from a plan view, each side edge extending in the longitudinal direction (L) of the absorber is narrower than the other portions in the width direction (W) in the excretory corresponding region. is formed

In this modified example, since the absorber has the above constriction, it is easy to suppress the chance of contact between the absorber and the thighs of the wearer's legs in the excretory correspondence area, and the opportunity of contact of the absorber with the thighs of both legs of the wearer. It is easy to contact through a large portion (i.e., a pair of cushion parts to be described later), and the hardness of the absorber is less likely to be transmitted to the thighs of the wearer's legs, so it is easy to suppress discomfort when worn.

[side sheet]

Although the side sheet is not an essential component in the absorbent article of the present disclosure, in the sanitary napkin 1 according to the present embodiment, the side sheets 13 and 13', as shown in Figs. 1, 4 and 5, , Areas near both edges extending in the longitudinal direction L of the absorbent body portion 2 and extending from the front edge 23 to the rear edge 25 in the longitudinal direction L, and the flap portion 11 , 11') and is constituted by a water-repellent sheet member that prevents leakage of liquid excretion such as menstrual blood and urine discharged from the wearer. In this embodiment, one side edge portion extending in the longitudinal direction L of the side sheets 13, 13' is both side edges 6, 6' extending in the longitudinal direction L of the absorber 12. ) is arranged so as to overlap the skin facing surface side, while the other side edge portion is bonded to the skin facing surface of the backsheet 14 at the flap portions 11 and 11'.

In addition, the side sheet in the absorbent article of the present disclosure is not limited to the above-mentioned aspect, and as long as it has various properties (water repellency, flexibility, etc.) usable as a side sheet of the absorbent article, it is a nonwoven fabric, polyethylene having air permeability, or Known side sheet members such as resin films such as polypropylene and thermoplastic resin sheets can be used.

[Cushion part]

In the sanitary napkin 1 according to the present embodiment, as shown in Figs. 1, 2, 4 and 5, the topsheet 8 has a pair of side edge portions 7 and 7' as base ends, respectively. In addition to protruding outward in the width direction W, it is folded back at the outer ends 47 and 47' in the width direction W, so that in the width direction W more than the outer ends 47 and 47' A pair of cushion parts 45 and 45' respectively joined to the side seats 13 and 13' via junctions 49 and 49' are provided inside.

In the sanitary napkin 1 according to the present embodiment, the pair of cushion portions 45 and 45' extend along the pair of side edge portions 7 and 7' of the topsheet 8 at their base ends, respectively. , and is a portion formed by folding the topsheet 8 with the joint portions 49 and 49' as terminal ends. The outer edge portions 47 and 47' of the topsheet 8 are located on the outermost side of the pair of cushion portions 45 and 45' in the width direction W, and in this embodiment In the sanitary napkin 1 according to the above, it extends from the front end 4 to each of the pair of absorbent side portions 3 and 3' and to the rear end 5 and extends in the longitudinal direction L. In addition, the outer end of the cushion portion in the absorbent article of the present disclosure is not limited to this shape, and preferably extends in the longitudinal direction (L) in each of the pair of absorbent side portions.

In addition, as shown in FIG. 5, the joint portions 49 and 49' are inside the side edge portions 7 and 7' of the absorbent body portion 2 in the width direction W, and the side edge portions ( In the vicinity of the width direction W of 7, 7', it is provided between the topsheet 8 and the side sheets 13, 13', respectively. In the absorbent article of the present disclosure, the distance in the width direction between the joint portion and the side edge portion extending in the longitudinal direction of the absorber is preferably 2 to 25 mm, more preferably 5 to 15 mm. As will be explained below, it is from the viewpoint of ensuring the cushioning properties of the pair of cushioning parts.

Further, in the absorbent article of the present disclosure, the distance in the width direction between each of the pair of side edge portions serving as the base ends of the pair of cushion portions and the outer end portion is preferably 5 to 35 mm, more preferably is 8 to 30 mm. As will be explained below, it is from the viewpoint of ensuring the cushioning properties of the pair of cushioning parts.

In addition, in the sanitary napkin 1 according to the present embodiment, the pair of cushion portions 45 and 45' have the lengths of the front end portion 4, the absorbent side portions 3 and 3', and the rear end portion 5 Although extending throughout the entire region in the direction L, in the absorbent article of the present disclosure, the length in the longitudinal direction of the pair of cushioning portions is not limited to this aspect, and the pair of cushioning portions are at least absorbent It is preferable to extend over the entirety of the longitudinal direction of the area|region adjacent to an excretion port in side parts 3 and 3'. As described above, at the outer ends of the pair of cushioning portions where the topsheet has many chances of contacting the wearer's thighs, the pair of cushioning portions do not have a concave-convex structure, and the topsheet is at least adjacent to the excretory opening. By being configured to protrude outward in the width direction in the region, the absorbent article of the present disclosure, as described below, has suitable cushioning properties and is less likely to give stimulation to the thighs of both legs of the wearer.

In addition, the maximum height of the pair of cushion portions in the absorbent article of the present disclosure is preferably 5 to 40 mm, more preferably 10 to 35 mm in a natural state. As will be explained below, it is from the viewpoint of ensuring the cushioning properties of the pair of cushioning parts.

Here, in the present specification, the maximum height of an object (cushion portion, excretory corresponding area, etc.) refers to the maximum height of the object from the horizontal reference surface on which the absorbent article is placed, and can be measured with the above-described laser displacement meter. In addition, the natural state of the absorbent article refers to a state in which no external force other than gravity acts on the absorbent article when the absorbent article is unfolded.

In addition, in the absorbent article of the present disclosure, the maximum height of the pair of cushion portions in a natural state is the maximum height of the excretory corresponding region (that is, the convex portion in the concavo-convex structure of the topsheet from the horizontal reference plane on which the absorbent article is placed) It is preferably higher than the height of the highest position in ). With this configuration, the maximum height of the pair of cushioning parts in a natural state and the maximum height of the excretory corresponding region are in a predetermined relationship, and each of the pair of cushioning parts is easily deformed along the shape of the thighs of the wearer's legs. Therefore, it is difficult to sense the hardness or stimulation of the absorber that the thighs of both legs of the wearer receive, and it is easy to suppress the discomfort during wearing.

Further, each of the pair of cushioning parts in the absorbent article of the present disclosure is preferably 2.0 to 8.0 N m/m 2 in the thickness direction T from the viewpoint of ensuring cushioning properties in the area adjacent to the excretory port. , more preferably has a WC (compressive energy) of 3.0 to 6.0 N·m/m 2 , and still more preferably 3.5 to 5.5 N·m/m 2 .

The WC (compression energy) means that the higher the value, the easier it is to be compressed, and the absorbent article sample is subjected to a compression characteristic evaluation test by an automated compression tester "KESFB-3A" (manufactured by Kato Tech Co., Ltd.) Can be obtained by subjecting there is. At this time, it is assumed that the center of the compressor of the testing machine is aligned with the central portion of the cushion section in the width direction. In addition, the measurement conditions of the compression characteristics evaluation test are as follows.

SENS: 2

Speed: 0.02 mm/sec

Stroke: 5 mm/10 V

Compressor area: 2 cm2

Acquisition Interval: 0.1 sec

Upper limit load: 50 gf/cm2

Number of repetitions: 1

In addition, if the WC (compressive energy) in the thickness direction (T) of each of the pair of cushioning parts is in the above numerical range, also in the width direction (W), each of the pair of cushioning parts of the present disclosure It is thought that suitable cushioning properties can be exhibited in an absorbent article.

Here, in the sanitary napkin 1 according to the present embodiment, the effect of providing the pair of cushion portions 45 and 45' will be described. 6 is a schematic view of a state in which the sanitary napkin 1 according to the first embodiment of the present disclosure is worn.

As shown in FIG. 6, when the wearer wears the sanitary napkin 1 by attaching the sanitary napkin 1 to the shorts 55, the wearer's thighs hold the sanitary napkin 1 in the width direction. press Here, since the sanitary napkin 1 includes the pair of cushion portions 45 and 45' as described above, in the width direction W, the pair of cushion portions 45 and 45 are larger than the absorber 12. ') side protrudes outward, and when the thighs of both legs of the wearer press the sanitary napkin 1 in the width direction, the pair of cushion parts 45 and 45' are attached to the thighs of both legs of the wearer. It is difficult to detect the hardness of the absorber 12, so to speak, it functions like a cushioning material. That is, when the thighs of both legs of the wearer press the sanitary napkin 1 in the width direction, before the absorber 12 comes into contact with the thighs of both legs of the wearer, the thighs of both legs of the wearer press the pair of cushion parts 45, 45. ')'s cushioning properties (i.e., softness or resilience) are easy to detect. Then, when the thighs of both legs of the wearer further press the sanitary napkin 1 in the width direction, until the absorber 12 comes into contact with the thighs of both legs of the wearer, the thighs of both legs of the wearer press the pair of cushion parts 45 , 45'), the cushioning properties are gradually more strongly perceived. As a result, even if the thighs of both legs of the wearer press the sanitary napkin 1 further in the width direction and the absorber 12 abuts on the thighs of both legs of the wearer, both legs of the wearer are placed between them until they come into contact with the absorber 12. Since the thighs of the pair sense the cushioning properties of the pair of cushioning parts 45 and 45', compared to the case where the hardness of the absorber is transmitted to the thighs of both legs of the wearer without sensing the cushioning properties of the pair of cushioning parts, physiological The napkin 1 for use makes it difficult to detect the hardness of the absorber on the thighs of both legs of the wearer. Therefore, with the above configuration, the hardness of the absorber 12 is less likely to be transmitted to the thighs of both legs of the wearer. Furthermore, in the sanitary napkin 1 according to the present embodiment, the pair of cushion portions 45 and 45' are disposed at a position closer to the skin facing surface than the absorber 12, so that the thighs of both legs of the wearer are menstrual When the napkin 1 is pressed in the width direction, the pair of cushion portions 45 and 45' protruding outward from the absorber 12 are flexible so as to collapse in the width direction W along the shape of the thighs of both legs of the wearer. Since it is easily deformed and the deformation is difficult to be inhibited by the absorber 12, the cushioning properties of the pair of cushioning portions 45 and 45' are easily sensed by the thighs of both legs of the wearer.

Furthermore, the topsheet 8 constituting the cushion portions 45 and 45' has a furrow-furnace structure at least in the excretory corresponding region 29, while the outer ends 47 and 47' have a furrow structure. - Since it does not have a furrow structure, the skin facing surface of the pair of cushion parts 45, 45' in the portion where the thighs of both legs of the wearer have many chances of contact has a structure that does not have a furrow-furrow structure. Therefore, even if the wearer moves the thighs of both legs back and forth by walking or the like to increase the chance of contact between the thighs of both legs and the pair of cushion parts 45, 45', it is difficult to receive stimulation due to the existence of the gyrus-sulcus structure. . Therefore, the sanitary napkin 1 is easy to improve wearability while enjoying the effect of having the gyrus-sulcus structure in the area corresponding to the excretory opening 29 while suppressing discomfort when worn.

Further, in the sanitary napkin 1 according to the present embodiment, as shown in Figs. 4 and 5, each of the pair of cushion portions 45 and 45' includes a pair of side edge portions serving as the base ends. Between (7, 7') and the joint portions (49, 49') serving as the terminal ends, the upper cushion portions (51, 51') positioned on the skin facing surface and the lower cushion portion (located on the non-skin facing surface) ( 53, 53').

Furthermore, in the sanitary napkin 1 according to this embodiment, as shown in Figs. 2, 4 and 5, each of the pair of cushion portions 45 and 45' includes a pair of side edge portions 7, From 7' to the outer ends 47 and 47', the outer ends 47 and 47' protrude toward the skin facing surface so that the outer ends 47 and 47' are the highest. And the lower cushion parts 53 and 53' located on the non-skin facing surfaces of the pair of cushion parts 45 and 45', respectively, are spaced apart from the seat member (side seats 13 and 13'). there is.

Since the pair of cushioning parts 45 and 45' have such a shape, each of the pair of cushioning parts 45 and 45' is easily deformed along the shape of the thighs of the wearer's legs. Since the hardness of the absorber 12 is made difficult to detect, the sanitary napkin 1 suppresses a sense of discomfort when worn and easily improves wearability.

Further, in the sanitary napkin 1 according to the present embodiment, each of the pair of cushion portions 45 and 45' has an outer surface ES (that is, the skin facing surface of the upper cushion portions 51 and 51') and the skin non-facing surfaces of the lower cushion portions 53 and 53', surfaces exposed to the outside), and the inner surface IS (that is, the non-skin-facing surfaces and lower cushion surfaces of the upper cushion portions 51 and 51') It is the skin facing surface of the parts 53 and 53', and has a surface not exposed to the outside). And each of a pair of cushion parts 45 and 45' contains a certain amount of air in the inner space, without being joined to the inner surface IS. Therefore, the upper cushion portions 51 and 51' and the lower cushion portions 53 and 53' both have a soft touch, and even if the wearer presses the sanitary napkin 1 with the thighs of both legs in the width direction W, the absorbent body (12) It is possible to more reliably secure a cushioning function that makes it difficult to detect the hardness. In addition, since the inner surfaces IS are not bonded to each other, the flexibility of the pair of cushioning portions 45 and 45' is less likely to be lost, and the hardness and irritation of the absorber 12 received by the thighs of both legs of the wearer are sensed. By making it difficult to do it, it is easy to suppress the discomfort at the time of wearing.

In the sanitary napkin 1 according to the present embodiment, as described above, the topsheet 8 is formed of an air-through nonwoven fabric.

Here, the air-through nonwoven fabric or the spunlace nonwoven fabric is formed by a process of forming a web by drop-depositing fibers on a net by dropping and depositing fibers riding on an air stream, and high-temperature air or high-pressure water flow from above the web for the web on the net. It is a nonwoven fabric that goes through a process of web bonding by passing through, that is, a nonwoven fabric manufactured using a net. ) net surface, and a surface (air surface) opposite to the net surface, which is not in contact with the net and is directly contacted by high-temperature air or high-pressure water flow. In such a nonwoven fabric having a net surface and an air surface, the air surface has a lower fiber density than the net surface and has a soft touch.

And, in this embodiment, the topsheet 8 is arranged so that the outer surface ES of each of the pair of cushioning parts 45 and 45' is an air surface.

In the sanitary napkin 1 according to the present embodiment, since the topsheet 8 is made of the air-through nonwoven fabric arranged according to the specific shape described above, the outer surfaces of the pair of cushion portions 45 and 45' ( ES) has a smooth touch, and even when the thighs of the wearer's legs come into contact with the pair of cushion parts 45, 45', there is little irritation to the skin, and it is easy to suppress discomfort when worn.

Further, in the sanitary napkin 1 according to the present embodiment, as shown in Fig. 5, the ends 57 and 57' of the second sheet (second sheet) 8b in the width direction W overlaps with each of the pair of cushion portions 45 and 45' in the thickness direction T, in other words, the end of the second seat (second seat) 8b in the width direction W Each of 57 and 57' exists on each of the pair of absorbent side portions 3 and 3', and is not joined to the inner surface IS of the pair of cushion portions 45 and 45'.

In the sanitary napkin 1 according to the present embodiment, the second sheet (second sheet) 8b is disposed in the above-described specific form in relation to the pair of cushion portions 45 and 45', thereby Due to the existence of the two seats (second seats) 8b, the pair of cushioning portions 45 and 45' are difficult to collapse and their flexibility is difficult to be lost. As a result, it is difficult to sense the hardness or irritation of the absorber that the thighs of both legs of the wearer receive, and it is easy to suppress the discomfort during wearing.

In addition, in the sanitary napkin 1 according to the present embodiment, as shown in Fig. 5, the side sheets 13, 13 as sheet members to which the topsheet 8 is joined via joint portions 49, 49' ') is arranged at a position on the side of the skin facing surface rather than the absorber 12.

In the sanitary napkin 1 according to the present embodiment, the topsheet 8 on the absorbent side portions 3, 3' is folded back without wrapping the absorbent body 12 around the pair of cushion portions 45, 45. ') is formed, making it difficult to detect the hardness or stimulation of the absorber 12 received by the thighs of both legs of the wearer, as well as contact opportunities between both sides of the absorber 12 in the width direction and the thighs of the wearer's legs. is easy to suppress, and it is easy to suppress the discomfort at the time of wearing.

[Crimping part]

Although not an essential component in the absorbent article of the present disclosure, as shown in Figs. 1, 2 and 4, the sanitary napkin 1 according to the present embodiment includes a surface sheet 8 ) and the absorber 12 in the thickness direction (T) by embossing, and a pair of crimping parts 37 and 37' extending along the pair of side edge parts 7 and 7' ) is provided. In the present embodiment, the pair of crimping portions 37 and 37' extend the sanitary napkin 1 over the entire longitudinal direction L of the area corresponding to the excretory port 29 of the sanitary napkin 1 into such a direction. By having a pair of crimping parts 37 and 37', the vicinity of both edges extending in the longitudinal direction L of the sanitary napkin 1 starting from the pair of crimping parts 37 and 37' is skin As it becomes easier to rise toward the opposing surface side, the pair of cushion portions 45 and 45' also become easier to stand up toward the skin facing surface side. As a result, since the pair of cushion parts 45 and 45' are easily deformed according to the shape of the thighs of the wearer's legs, the sanitary napkin 1 reduces the hardness and irritation of the absorber that the wearer's thighs receive. is made difficult to detect, and it is easy to suppress the discomfort at the time of wearing.

Further, in the absorbent article of the present disclosure, the pair of crimping portions are not limited to those of the above-described aspect, and may be provided only in a part of the area corresponding to the excretory port of the absorbent article in the longitudinal direction. Furthermore, the pair of crimping portions may be provided on all or part of the front region 27 and the rear region 31 in the longitudinal direction. Even in this case, in the absorbent article, as the vicinity of both edges extending in the longitudinal direction of the absorbent article from the pair of crimping parts as a starting point rises toward the skin facing surface side, the pair of cushion parts also move toward the skin facing surface side. It becomes easy to stand up. As a result, the absorbent article makes it difficult to sense the hardness or irritation of the absorber that the thighs of both legs of the wearer receive, and it is easy to suppress discomfort when worn.

[back sheet]

In the sanitary napkin 1 according to the present embodiment, the back sheet 14 covers the entire surface of the sanitary napkin 1 in plan view, as shown in FIGS. 1, 3, 4 and 5. It is constituted by a liquid-impervious sheet member disposed on the side of the skin non-opposite surface in the thickness direction T to prevent leakage of liquid excretion such as menstrual blood and urine discharged from the wearer. Such a liquid-impervious sheet member can be used as a backsheet of an absorbent article, as long as it has various properties (liquid-impermeability, air permeability, flexibility, etc.), a resin film such as polyethylene or polypropylene, a thermoplastic resin sheet, etc. A liquid impermeable sheet member may be used.

[Second Embodiment]

Next, a second embodiment of the absorbent article of the present disclosure will be described. In addition, with respect to each member in the second embodiment of the present disclosure, the same reference numerals as those in the first embodiment are assigned to those having the same configuration and the same effect as the members in the first embodiment, and A detailed description is omitted.

Fig. 7 is a sectional view corresponding to the IV-IV end surface of Fig. 1 of the sanitary napkin 10 according to the second embodiment of the present disclosure. 8 is an enlarged view of the region Y in FIG. 7 .

In the first embodiment, in the side sheets 13 and 13', one side edge portion extending in the longitudinal direction L of the side sheets 13 and 13' is in the longitudinal direction of the absorber 12 ( L), while the opposite side edges 6 and 6' are arranged so as to overlap the skin facing surface side, the other side edge portions of the backsheet 14 in the flap portions 11 and 11' Although bonded to the skin facing surface, in this embodiment, the side sheets 13 and 13' extend in the longitudinal direction L of the side sheets 13 and 13' as shown in Figs. One side edge portion is arranged so as to overlap the skin non-opposite surface side of both edges 6 and 6' extending in the longitudinal direction L of the absorber 12, while the other side edge portion, The flap portions 11 and 11' are bonded to the skin facing surface of the backsheet 14.

Furthermore, in the sanitary napkin 10 according to the present embodiment, as shown in Figs. 7 and 8, the junctions 49 and 49' between the topsheet 8 and the side sheets 13 and 13', respectively. is provided at a position on the non-skin facing side of the absorber 12. In addition, in each of the pair of cushioning portions 45 and 45' in this embodiment, the topsheet 8 in the absorbent side portions 3 and 3' extends in the width direction W of the absorber 12. It is formed by folding back to the skin non-opposite side so as to wind up the both side edges 6 and 6' of the frame.

The sanitary napkin 10 according to the present embodiment includes the pair of cushion portions 45 and 45' configured as described above, so that even if the wearer's thighs press the sanitary napkin 10 in the width direction, The absorber 12 easily comes into contact with the thighs of both legs of the wearer via the pair of cushion parts 45 and 45'. That is, since the pair of cushion portions 45 and 45' protrude outward from the absorber 12 in the width direction W, the thighs of both legs of the wearer hold the sanitary napkin 1 in the width direction. When pressed, the pair of cushioning parts 45 and 45' function like a cushioning material, so to speak, making it difficult to detect the hardness of the absorber 12 on the thighs of both legs of the wearer. Therefore, with the above configuration, the hardness of the absorber 12 is less likely to be transmitted to the thighs of both legs of the wearer. Furthermore, in this embodiment, since the pair of cushioning portions 45 and 45' are formed so as to wrap around both edges of the absorber 12 in the width direction W, the pair of cushioning portions 45, 45') makes it difficult to more reliably detect the hardness of the absorber 12 on the thighs of both legs of the wearer, so that the sanitary napkin 10 is comfortable to wear.

In addition, the aspect of a pair of cushion part in the absorbent article of this indication is not limited to the aspect described in the said 1st and 2nd embodiment, It can change suitably. For example, as described above, in the absorbent article of the present disclosure, the side sheet is not an essential component, and in this case, the top sheet may be bonded to a back sheet or a liquid-permeable covering sheet covering the absorber.

In addition, the absorbent article of this disclosure is not limited to the above-mentioned embodiment or illustrative description, and combination, change, etc. are possible as appropriate within the range which does not deviate from the objective and meaning of this disclosure.

In addition, the present disclosure can be applied to various absorbent articles, such as panty liners and (light) incontinence pads, in addition to the sanitary napkins of the above-described embodiments. In addition, in this specification, ordinal numbers such as "first" and "second" are for distinguishing matters to which the ordinal numbers are assigned, and do not mean the order, priority, or importance of each matter.

1: sanitary napkin, 2: absorbent main body, 3, 3': absorbent side, 4: front end, 5: rear end, 6, 6': both edges, 7, 7'; Side edge part, 8: top sheet, 8a: first sheet, 8b: second sheet (second sheet), 10: sanitary napkin (modified example), 11, 11': flap portion, 12: absorber, 13, 13 ': side sheet, 14: back sheet, 15: adhesive portion, 17, 17': adhesive portion, 23: front edge portion, 25: rear edge portion, 27: front area, 29: excretory corresponding area, 31: rear area , 33, 33': first end, 35, 35': second end, 37, 37': compression portion, 39, 39': area adjacent to excretory port, 41: ridge portion, 43: sulcus portion, 45, 45' : Cushion part, 47, 47': outer end, 49, 49': junction, 51, 51': upper cushion part, 53, 53': lower cushion part, 55: shorts, ES: outer surface, IS: inner surface, 57 , 57': end.

Claims (10)

A liquid-permeable topsheet having a skin facing surface and a skin non-facing surface as well as having a longitudinal direction, a width direction and a thickness direction, and an absorbent body and a sheet member positioned on the skin non-facing surface side of the topsheet, for fixing clothing As an absorbent article having an adhesive portion of,
The absorbent article, in plan view, overlaps with the absorber in the thickness direction and is adjacent to a pair of excretory ports existing on both outer sides of the excretory corresponding region in the width direction and corresponding to an excretory port. contain the area,
In the absorbent article, the topsheet extending in the excretory corresponding region has at least a pair of side edge portions overlapping in the thickness direction with opposite side edges of the absorber extending in the longitudinal direction as base ends. In each of the regions adjacent to the pair of excretory openings, the sheet protrudes outward on both sides in the width direction, and is folded back at the outer end in the width direction through a joint on the inner side in the width direction than the outer end. It has a pair of cushion parts formed by being joined to the member,
The absorbent article according to claim 1, wherein the topsheet has a concavo-convex structure at least in the area corresponding to the excretion port, but does not have a concavo-convex structure at the outer end. The method of claim 1, wherein each of the pair of cushion parts includes an upper cushion part positioned on the skin-facing surface between the base end and the junction part, and located on the non-skin facing surface between the base end and the junction part. The absorbent article has a lower cushion portion that is spaced apart from the seat member. The absorbent article according to claim 1 or 2, wherein each of the pair of cushioning parts is not joined to the inner surface. The absorbent article according to claim 1 or 2, wherein the topsheet is made of an air-through nonwoven fabric, and the outer surface of each of the pair of cushion portions is an air surface. The concavo-convex structure according to claim 1 or 2, wherein the concave-convex structure includes a plurality of grooves composed of embossed portions extending continuously or intermittently in the longitudinal direction and juxtaposed in the width direction, and the plurality of grooves in the width direction. An absorbent article having a furrow-furrow structure consisting of furrows extending between two adjacent furrows among furrows of the furrows. The absorbent article according to claim 1 or 2, wherein the absorbent article further includes a second sheet present between the topsheet and the absorbent body in the thickness direction at least in a part of each area adjacent to the excretory port,
The absorbent article, wherein each of both ends of the second sheet in the width direction overlaps each of the pair of cushioning parts in the thickness direction and is not joined to each of the pair of cushioning parts. The absorbent article according to claim 1 or 2, wherein the sheet member is disposed at a position closer to the skin facing surface than the absorbent body. The absorbent article according to claim 1 or 2, wherein the absorbent body has a constricted portion in the excretory-corresponding area in the width direction compared to areas other than the excretory-corresponding area. The absorbent article according to claim 1 or 2, wherein the absorbent article has a pair of crimping parts on the topsheet and the absorbent body, at least in the area corresponding to the excretion port, and each of the pair of crimping parts is at the side of the pair. An absorbent article extending along each edge portion. The absorbent article according to claim 1 or 2, wherein a maximum height of the pair of cushioning portions is higher than a maximum height of the area corresponding to the excretion port in a natural state.