JP6316521B1 - Absorbent articles - Google Patents

Abstract

An object of this indication is to provide an absorptive article which improves a side leak while suppressing a sense of incongruity at the time of wearing, and is easy to improve wearing nature. The absorbent article (1) includes a liquid-permeable top sheet (3), a pair of side sheets (5, 5 '), an absorber (7), a liquid-impermeable back sheet (9), A pair of virtual surfaces (VS, VS ′) extending in the thickness direction T from the side edges (13, 13 ′) of the absorbent body 7, and a side sheet ( 5, 5 ′) is located between the top sheet (3) and the absorber (7) in the thickness direction (T) on the virtual plane (VS, VS ′), and corresponds to the excretion port in the longitudinal direction (L). In the region (R3), the top sheet (3) has the virtual surfaces (VS, VS ′) as the base ends (P1, P1 ′), passes through the outer end portions (31, 31 ′), and joins (33, 33 ′) as a terminal end (P2, P2 ′) and a pair of loop portions (35, 35 ′) joined to the side sheets (5, 5 ′).

Description

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

  Absorbent articles such as sanitary napkins, panty liners, and incontinence pads are worn for a long time in contact with the wearer's crotch area, in addition to preventing the body fluid from leaking. Is required to fit well and comfortably. Therefore, in conventional absorbent articles, for example, an elastic side flap is provided at a position corresponding to the crotch portion of the wearer in the absorbent article, thereby improving the fit by improving the adhesion between the absorbent article and the wearer. Absorbent articles made are considered.

  As such an absorbent article, for example, Patent Document 1 discloses a liquid-permeable top sheet, a liquid-impermeable back sheet, and the top sheet and the back sheet for absorbing liquid oozed from the human body. An absorbent article having a liquid absorbent pad having a pair of side edges, i) having an elastic side flap along each side edge of the absorbent pad, the side flap Is a loop member extending from the side edge of the absorbent pad and returning in a loop toward the side edge, the base having an opening near the side edge of the absorbent pad A loop member having an end, a tip, a garment facing portion, and a wearer facing portion, and an insertion member extending through the base end opening into the loop member, the tip and the base end An insertion member having a base end adjacent to the mouth, and attached along a part of the length of the insertion member outside the base end of the insertion member, and not attached to the loop member An elastic material; and a seal that attaches the insertion member to the garment facing portion and the wearer facing portion of the loop member at the base end; ii) each side edge of the absorbent pad An absorbent article has been proposed that has wings adjacent to and extending laterally from the bond line disposed along the line. According to the absorbent article disclosed in Patent Document 1, it is said that the fit of the absorbent article can be improved.

JP-T 8-503638

The conventional absorbent article described in Document 1 includes a pair of elastic side flaps along each side edge of the absorbent pad for the purpose of improving wearability to the body during use and suppressing side leakage. ing. However, the pair of elastic side flaps are disposed at positions separated from the absorbent pad in the width direction of the absorbent article. Therefore, when the wearer wears the absorbent article and the absorbent article or the absorbent pad is deformed along the shape of the crotch of the wearer, the pair of elastic side flaps is deformed by the absorbent pad. In some cases, it was not possible to follow up, the adhesiveness with the wearer was reduced, and side leakage could not be sufficiently suppressed. Further, the pair of elastic side flaps are disposed adjacent to the absorbent pad in the width direction of the absorbent article, and the pair of elastic side flaps are arranged on each side edge of the absorbent pad. Since it does not function as a buffer with the wearer's crotch, there is a risk that each side edge of the absorbent pad abuts the wearer's crotch via a liquid-permeable top sheet, giving the wearer an uncomfortable feeling. there were.
Then, this indication aims at providing an absorptive article which has few side leakage, being excellent in wearing nature, suppressing a sense of incongruity at the time of wear.

The absorbent article according to the present disclosure is:
An absorbent article having a longitudinal direction, a width direction, and a thickness direction, and having a skin facing surface and a non-skin facing surface,
The absorbent article includes a liquid-permeable top sheet, a pair of side sheets, an absorber, a liquid-impermeable back sheet, and an adhesive part for fixing clothes,
The absorbent article has a pair of virtual surfaces extending in the thickness direction from a pair of side edges of the absorber,
The pair of side sheets are positioned between the top sheet and the absorber in the thickness direction in the pair of virtual surfaces,
In the excretion opening corresponding region corresponding to the excretion opening in the longitudinal direction, the absorbent sheet has the pair of virtual surfaces as a pair of base ends, and the outer side in the width direction than the pair of virtual surfaces. A pair of loop portions that are joined to the pair of side sheets with the pair of joining portions as a pair of terminal ends on the inner side in the width direction of the pair of outer end portions. It is characterized by having.

  It is possible to provide an absorbent article that improves side leakage while suppressing a sense of discomfort at the time of wearing, and easily improves wearability.

FIG. 1 is a plan view of a sanitary napkin 1 according to an embodiment of the present disclosure as viewed in the thickness direction from the top sheet side. FIG. 2 is a perspective view of the sanitary napkin 1 according to the embodiment of the present disclosure in a developed state. 3, the sanitary napkin 1 according to the embodiment of the present disclosure is an end view of the longitudinal end surfaces along the widthwise center axis C _L extending in the longitudinal direction. FIG. 4 is an enlarged end view of the sanitary napkin 1 according to the embodiment of the present disclosure at the IV-IV end face of FIG. 1. FIG. 5 is an enlarged view of a region X in FIG. FIG. 6 is a schematic diagram of a state in which the sanitary napkin 1 according to the embodiment of the present disclosure is worn. FIG. 7 is a schematic diagram illustrating a positional relationship between the joint portion and the end region joint portion in the sanitary napkin 1 according to the embodiment of the present disclosure.

[Aspect 1]
An absorbent article having a longitudinal direction, a width direction, and a thickness direction, and having a skin facing surface and a non-skin facing surface,
The absorbent article includes a liquid-permeable top sheet, a pair of side sheets, an absorber, a liquid-impermeable back sheet, and an adhesive part for fixing clothes,
The absorbent article has a pair of virtual surfaces extending in the thickness direction from a pair of side edges of the absorber,
The pair of side sheets are positioned between the top sheet and the absorber in the thickness direction in the pair of virtual surfaces,
In the excretion opening corresponding region corresponding to the excretion opening in the longitudinal direction, the absorbent sheet has the pair of virtual surfaces as a pair of base ends, and the outer side in the width direction than the pair of virtual surfaces. A pair of loop portions that are joined to the pair of side sheets with the pair of joining portions as a pair of terminal ends on the inner side in the width direction of the pair of outer end portions. An absorbent article, comprising:
The absorbent article which concerns on this aspect has a pair of loop part which has a predetermined structure in an excretion opening corresponding | compatible area | region, and the said pair of loop part is on the skin opposing surface side rather than the said absorber in the said pair of virtual surfaces. Since it is joined to the pair of positioned side sheets, the pair of loop portions are arranged so as to cover the pair of side edge portions of the absorber. Therefore, even if the wearer wears the absorbent article and the absorbent article or the absorbent body is deformed along the shape of the crotch part of the wearer, the pair of loop parts follow the deformation of the absorbent body. It is easy to do, it is easy to maintain adhesiveness with a wearer, and it is easy to suppress a side leak. Moreover, it is difficult for a wearer to sense the hardness of an absorber by the buffering action of the pair of loop portions located on the skin-facing surface side of the absorber. As a result, the absorbent article which concerns on this aspect suppresses the uncomfortable feeling at the time of wear, and is easy to improve mountability.

[Aspect 2]
The absorptive article according to aspect 1 in which each of the pair of joint portions exists inside the width direction with respect to the pair of virtual surfaces.
In the absorbent article according to this aspect, in the pair of loop portions, the top sheet folded at the pair of outer end portions and the pair of side sheets are joined inside the pair of virtual surfaces in the width direction. Therefore, even if the wearer wears the absorbent article, and the absorbent article or the absorbent body is deformed along the shape of the wearer's crotch, the pair of loop portions are deformed of the absorbent body. Therefore, it is easy to follow, and it is easy to maintain adhesiveness with a wearer, and to suppress side leakage. Further, the pair of loop portions having the above-described configuration has an outer peripheral length in the width direction as compared with a case where the top sheet and the pair of side sheets are joined on the outside of the pair of virtual surfaces in the width direction. Longer and more room to stand on the skin facing side. Therefore, as a result of being able to exhibit the above-mentioned operational effects by the pair of loop portions more effectively, it is easy to improve the wearability by suppressing a sense of discomfort during wearing.

[Aspect 3]
The absorbent article according to aspect 1 or 2, wherein in the pair of loop portions, the pair of base ends are not directly or indirectly joined to the pair of terminal ends.
In the pair of loop portions, the pair of base ends and the pair of terminal ends are not joined, or the pair of base ends are not joined to the pair of terminal ends via another sheet member, The absorbent article which concerns on this aspect does not have a junction part of a pair of said base end and a pair of said terminal end, and it is hard to produce irritation | stimulation or a feeling of pressure in a wearer's crotch part. Therefore, the absorbent article which concerns on this aspect suppresses the uncomfortable feeling at the time of wear, and is easy to improve mountability.

[Aspect 4]
Each of a pair of said loop part is an absorbent article as described in any one of the aspects 1-3 which does not contain an elastic member.
Since the pair of loop portions does not include an elastic member, it is easy to reduce irritation and pressure generated in the wearer's crotch due to the contraction force of the elastic material. Therefore, the absorbent article which concerns on this aspect suppresses the uncomfortable feeling at the time of wear, and is easy to improve mountability.

[Aspect 5]
The absorbent article squeezed from the top sheet to the absorbent body at least in the region corresponding to the excretion opening and inside the pair of joints in the width direction, and extends in the longitudinal direction. The absorbent article according to any one of aspects 1 to 4, further comprising a portion.
Since the absorbent article which concerns on this aspect has a predetermined pair of pressing part, the absorber located in the outer side of the width direction rather than a pair of said pressing part tends to protrude to the skin opposing surface side, and in the said protruding part The pair of loop portions located on the skin facing surface side than the absorbent body is also likely to stand on the skin facing surface side. Therefore, the pair of loop portions are in close contact with the crotch portion of the wearer and easily absorb body fluid, so that side leakage is easily prevented. Therefore, as a result of being able to exhibit the above-mentioned operational effects by the pair of loop portions more effectively, it is easy to improve the wearability by suppressing a sense of discomfort during wearing.

[Aspect 6]
The absorber has an absorbent polymer;
In the absorbent article, the basis weight of the absorbent polymer of the absorbent body is higher in the width direction than in the pair of compressed parts, and is higher than the pair of compressed parts in the width direction. The absorbent article according to aspect 5, having a quantity region.
In the absorbent article according to the present aspect, in the high basis weight region of the absorbent body, which exists at a position outside the width direction with respect to the pair of compressed parts, the basis weight of the absorbent polymer is high, and there are many absorbent polymers. Exists. In such a region, the absorbent article has more absorption capacity than other regions, and thus the absorbent article can easily suppress side leakage. Further, in the absorbent article, even if a high basis weight region is provided at the position, the wearer senses the hardness of the absorbent body and thus the absorbent polymer by the buffering action of the pair of loop portions. hard. As a result, the absorbent article which concerns on this aspect suppresses the uncomfortable feeling at the time of wear, and is easy to improve mountability.

[Aspect 7]
The absorbent article has a pair of longitudinal end regions adjacent to the excretion opening corresponding region in the longitudinal direction in plan view,
The absorbent article has a pair of end region joining portions that join the top sheet and the pair of side sheets in the pair of longitudinal end region,
The absorbent article according to any one of Aspects 1 to 6, wherein the pair of end region joint portions are present outside the pair of joint portions in the width direction.
In the absorbent article according to this aspect, since the pair of joint portions and the pair of end region joint portions are in a predetermined positional relationship, the pair of loop portions includes the pair of joint portions and the pair of outer end portions. It is easy to ensure the distance in the width direction and to stand on the skin facing surface side. Further, since the end region joining portion facilitates joining the top sheet and the pair of side sheets in the pair of longitudinal end regions on the outer side in the width direction, both sheets in the pair of longitudinal end regions. Is difficult to turn to the center side in the width direction, and it is easy to suppress the pair of loop portions from turning to the center side in the width direction in conjunction with both sheets in the pair of longitudinal end regions. Therefore, as a result of being able to exhibit the above-mentioned operational effects by the pair of loop portions more effectively, it is easy to improve the wearability by suppressing a sense of discomfort during wearing.

[Aspect 8]
The absorbent article according to aspect 7, wherein the pair of end region joining portions are embossed portions that extend continuously or intermittently in the longitudinal direction.
In the absorbent article according to the present aspect, since the pair of end region joining portions present in the pair of longitudinal end region is formed of a predetermined embossed portion, the absorbent article in the pair of longitudinal end region is Easily deforms along the wearer's body shape. Therefore, as a result of being able to exhibit the above-mentioned operational effects by the pair of loop portions more effectively, it is easy to improve the wearability by suppressing a sense of discomfort during wearing.

[Aspect 9]
The absorbent article is folded on the skin facing surface side with at least one individual wrapping fold line extending in the width direction, and individually wrapped with a wrapping sheet,
The absorptive article according to any one of modes 1 to 8, wherein the individual wrapping folding line is located closer to the end in the longitudinal direction of the absorbent article than the pair of joints.
In the absorbent article according to this aspect, since the individual wrapping fold line and the pair of joints are in a predetermined positional relationship, the individual wrapping fold line and the pair of loop portions are unlikely to overlap in the longitudinal direction, and the pair of loops It is difficult to hinder the ease of standing of the part to the skin facing surface side. Therefore, as a result of being able to exhibit the above-mentioned operational effects by the pair of loop portions more effectively, it is easy to improve the wearability by suppressing a sense of discomfort during wearing.

[Aspect 10]
Each of the pair of loop portions is an absorbent article according to any one of aspects 1 to 9, wherein one portion on the inner surface is not joined to the other portion.
In the absorbent article according to this aspect, since each of the pair of loop portions has a specific structure, flexibility in the loop portions is not easily lost, and the above-described operational effects by the pair of loop portions are more effectively exhibited. As a result, discomfort at the time of wearing is suppressed, and the wearability is easily improved.

[Aspect 11]
The absorptive article according to any one of modes 1 to 10, wherein the topsheet is made of an air-through nonwoven fabric and is arranged such that the outer surfaces of the pair of loop portions are air surfaces.
Since the absorbent article according to this aspect is made of an air-through nonwoven fabric in which the top sheet is arranged in a specific form, the outer surfaces of the pair of loop portions have a smooth touch, and the wearer's crotch portion comes into contact with the loop portions. However, there is little irritation | stimulation to skin and it is easy to improve wearing property by suppressing the sense of incongruity at the time of wear.

[Aspect 12]
Each of a pair of said side sheet | seat consists of a hydrophobic sheet | seat, The absorbent article as described in any one of the aspects 1-11.
In the absorbent article according to this aspect, since the pair of side sheets are made of a hydrophobic material, it is easy to suppress liquid return in the side region, and it is easy to suppress discomfort during wearing and to improve wearability.

Hereinafter, preferred embodiments of the absorbent article of the present disclosure will be described in detail with reference to the drawings. In the present specification, unless otherwise specified, “objects placed on a horizontal surface in an unfolded state (for example, absorbent articles, absorbent bodies, etc.) from the upper side in the thickness direction thereof. “Looking at” is called “plan view”.
Various directions and the like used in this specification are as follows unless otherwise specified.
In this specification, “longitudinal direction” refers to “a direction in which the length of a vertically long object in plan view is long”, and “width direction” refers to “a direction in which the length of a vertically long object in plan view is short (short side). Direction) ”and“ thickness direction ”means“ perpendicular direction with respect to the object placed on the horizontal plane in the unfolded state ”. The longitudinal direction, the width direction, and the thickness direction are orthogonal to each other.

Further, in the present specification, "vertically elongated object (e.g., an absorbent article, the absorbent body, etc.) in the width direction of the relatively proximal side with respect to the width direction central axis C _L extending in the longitudinal direction" a " refers to the width direction of the inner "," in the width direction of the vertically elongated object, the relatively distal "with respect to the widthwise central axis C _L of" outward in the width direction ".

Further, in the present specification, “the one side which is relatively proximal to the abdomen of the wearer when the wearer wears the absorbent article in the longitudinal direction of the absorbent article” is referred to as “the absorbent article”. The front side of the absorbent article, in the longitudinal direction of the absorbent article, when the wearer wears the absorbent article, the distal side relative to the wearer's abdomen (that is, relative to the wearer's back) The “other side that is relatively proximal” is referred to as “the rear side of the absorbent article”.
Further, in the present specification, unless otherwise specified, in the thickness direction of the absorbent article, “relatively proximal to the skin facing surface of the wearer when the absorbent article is worn” "Surface side" is referred to as "relatively distal to the wearer's skin facing surface when the absorbent article is worn" and is referred to as "non-skin facing surface side". In addition, in this specification, “surface on the skin facing surface side” and “surface on the non-skin facing surface side” of various members constituting the absorbent article (for example, a surface sheet, an absorbent body, a back sheet, etc.) Each is simply referred to as “skin facing surface” and “non-skin facing surface”.

[Embodiment]
[Basic structure of absorbent article]
FIG. 1 is a plan view of a sanitary napkin 1 according to an embodiment of the present disclosure as viewed in the thickness direction from the top sheet side. FIG. 2 is a perspective view of the sanitary napkin 1 according to the embodiment of the present disclosure in a developed state. 3, the sanitary napkin 1 according to the embodiment of the present disclosure is an end view of the longitudinal end surfaces along the widthwise center axis C _L extending in the longitudinal direction. FIG. 4 is an enlarged end view of the sanitary napkin 1 according to the embodiment of the present disclosure at the IV-IV end face of FIG. 1. FIG. 5 is an enlarged view of a region X in FIG. 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 long outer shape having a longitudinal direction L and a width direction W in plan view.
As shown in FIGS. 1 to 5, the sanitary napkin 1 includes a liquid-permeable surface sheet 3 positioned on the most skin-facing surface side of the sanitary napkin 1 in the thickness direction T, and is less than the surface sheet 3. Hydrophobic side sheet 5, 5 ′ positioned on the skin facing surface side, an absorbent body 7 positioned on the non-skin facing surface side with respect to the side sheets 5, 5 ′, and a non-skin facing surface side with respect to the absorbent body 7 The back surface sheet 9 and the plurality of clothing fixing adhesive portions 11 that are arranged on the non-skin facing surface of the back sheet 9 and that extend continuously or intermittently in the width direction W are provided.
The sanitary napkin 1 is configured so that liquid excretion such as menstrual blood and urine discharged from the wearer can be absorbed and held by the absorbent body 7 while penetrating in the thickness direction T.

The sanitary napkin 1 according to this embodiment has a pair of virtual surfaces VS and VS ′ extending in the thickness direction T from a pair of side edges 13 and 13 ′ of the absorbent body 7 extending in the longitudinal direction L.
In the width direction W, the sanitary napkin 1 includes a main body region R1 positioned inside the pair of virtual surfaces VS and VS ′ and a side region R2 positioned outside the pair of virtual surfaces VS and VS ′. , R2 ′. Furthermore, the sanitary napkin 1 has, in the longitudinal direction L, an excretory opening corresponding region R3 located inside individual packaging folding lines L1 and L2, which will be described later, and a longitudinal end region R4 located outside the individual packaging folding lines L1 and L2. , R4 ′. That is, in a plan view, the pair of longitudinal end regions R4, R4 ′ are adjacent to the excretory opening corresponding region R3 in the longitudinal direction L.

The sanitary napkin 1 according to the present embodiment is joined to the individual packaging sheet 15 with an adhesive or the like via a release sheet (not shown). Further, the sanitary napkin 1 is folded to the skin facing surface side together with the individual packaging sheet 15 and the release sheet in each of the individual packaging folding lines L1 and L2 extending in the width direction W, and the individual packaging sheet 15 is fixed to the fastening portion. 17 is attached to form an individual package.
In addition, although the number of individual packaging folding lines in this embodiment is two, the number of individual packaging folding lines of the absorbent article of this indication is not limited to this, There may be three or more.

Here, in the present specification, the “excretion opening-corresponding area” refers to an area including an area that faces or contacts the wearer's excretion opening when the absorbent article is worn, and the type and use of the absorbent article ( Specifically, it is a region that is appropriately set for each type of absorbent article according to the type of liquid excreta such as urine, feces, menstrual blood, age, sex, etc. of the intended wearer.
In the case where the absorbent article is a sanitary napkin that is folded and wrapped individually by a wrapping line, the “excretion area” is the first and second from the front of the sanitary napkin in the longitudinal direction. It refers to the area located between the individual wrapping lines of the eyes.

It should be noted that the excretory opening corresponding region is usually absorbed in a plan view when the absorbent article has a substantially central part in the longitudinal direction or a position closer to the front side (for example, if the absorbent article has an absorbent main body part and a flap part). In the main body part, it is a position closer to the front side that overlaps with the flap part in the longitudinal direction, and the absorbent article is composed of an absorbent main body part that has a constricted part that is constricted inside in the width direction at a substantially central part in the longitudinal direction. In plan view, the position corresponding to the constricted portion of the absorbent main body, and when the absorbent article is composed of an oblong absorbent main body, the center in the longitudinal direction extending in the width direction of the absorbent main body The longitudinal length of the absorbent article is about 1/3 or more of the longitudinal length of the absorbent article and the width of the absorbent article is about 1/3 or more of the overall length of the absorbent article. Is set to have For example, if the absorbent article of the napkin such as for night, the longitudinal length of the corresponding to the excretion area, also be set to be less than 1/3 of the entire longitudinal length of the absorbent article.
In addition, the sanitary napkin 1 according to the present embodiment is located outward in the width direction W at each of the side regions R2 and R2 ′ in the width direction W and at a position closer to the front of the excretory opening corresponding region R3 in the longitudinal direction L. It includes substantially trapezoidal flap portions 19, 19 'that extend.

As shown in FIGS. 1 to 5, each of the pair of flap portions 19, 19 ′ includes side sheets 5, 5 ′ located on the skin facing surface side of the sanitary napkin 1 in the thickness direction T, and side sheets 5 and 5 ′, the back sheet 9 positioned on the non-skin facing surface side, and the adhesive portions 21 and 21 ′ for fixing the clothes extending in the longitudinal direction L disposed on the non-skin facing surface of the back sheet 9. Yes.
When the sanitary napkin 1 is worn, at least the non-skin facing surface of the entire region in the longitudinal direction L and the portion corresponding to the main body region R1 in the width direction W is attached to the wearer's underwear via the adhesive portion 11. After affixing to the skin facing surface, the pair of flap portions 19 and 19 'are respectively affixed to the non-skin facing surface of the underwear via the adhesive portions 21 and 21' while being folded back to the non-skin facing surface side of the underwear, respectively. By this, it is fixed to the underwear. Therefore, when the sanitary napkin 1 is worn, the non-skin facing surfaces of the pair of flap portions 19 and 19 ′ are surfaces facing the wearer's skin.

Here, in order to fix the sanitary napkin 1 to the underwear of the wearer, the adhesive portion 11 in the entire region in the longitudinal direction L and the portion corresponding to the main body region R1 in the width direction W and the adhesive portions in the flap portions 19 and 19 ′ The pressure-sensitive adhesive used for the portions 21 and 21 'is not particularly limited as long as it can fix the sanitary napkin 1 to the wearer's underwear, and for example, any pressure-sensitive adhesive such as a styrene polymer may be used. it can. In addition, since said pair of flap part is not an essential component in this indication, the absorbent article of this indication does not need to have the said pair of flap part.
Further, in the sanitary napkin 1, the excretory opening corresponding region R3 is compressed along the pair of virtual surfaces VS and VS ′ while squeezing the top sheet 3 and the absorbent body 7 in the thickness direction T as will be described later. A pair of existing pressing parts 23 and 23 'are provided.

  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 embodiment.

[Surface sheet]
In the sanitary napkin 1 according to the present embodiment, as shown in FIGS. 1, 3, and 4, the topsheet 3 has a body region R1 and side regions R2 and R2 in the entire region in the longitudinal direction L and in the width direction W. It is arranged on the skin facing surface side in the thickness direction T in a region including a part of 'and is configured by a liquid permeable sheet member that can directly contact the wearer's skin facing surface. Moreover, in this embodiment, the surface sheet 3 is comprised by the 2 layer structure of the 1st sheet | seat 3a located in the skin opposing surface side, and the 2nd sheet | seat 3b located in the non-skin opposing surface side.
The liquid permeable sheet member constituting the surface sheet 3 is not particularly limited as long as it has various characteristics (for example, liquid permeability, flexibility, touch, etc.) that can be used as the surface sheet of the absorbent article. Further, non-woven fabrics such as spunlace nonwoven fabrics and air-through nonwoven fabrics formed using hydrophilic fibers such as cellulosic fibers and thermoplastic resin fibers subjected to hydrophilic treatment can be used. Among these, the first sheet 3a of the surface sheet used for 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 first sheet 3a of the surface sheet 3 in the present embodiment is also air-through. It is formed of a nonwoven fabric.

On the other hand, the second sheet of the top sheet is a sheet member also called a so-called second sheet, and the second sheet is preferably a liquid-permeable fiber sheet whose constituent fiber is a synthetic fiber. The second sheet is preferably an air-through nonwoven fabric in which the intersecting points of intersecting synthetic fibers are joined by air-through heat fusion. 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 air-through nonwoven fabric, the basis weight ^is preferably in the range of ^{15g / m 2 ~40g / m 2} .
In addition, although the surface sheet 3 in this embodiment was comprised by the 2 layer structure of the 1st sheet | seat 3a and the 2nd sheet | seat 3b, in the absorbent article of this indication, a 2nd sheet | seat is not an essential component, but this In the disclosed absorbent article, the top sheet may be formed of only the first sheet. Moreover, in the absorbent article of the present disclosure, the second sheet (second sheet) may be a sheet member that the absorbent article includes as a constituent member different from the surface sheet.

  In the sanitary napkin 1 according to the present embodiment, as shown in FIGS. 1 to 5, the topsheet 3 extends over the entire region in the width direction W of the main body region R1 and over the entire region in the longitudinal direction L of the sanitary napkin 1. Thus, the groove structure is parallel to the longitudinal direction L. However, the surface sheet 3 does not have a ridge groove structure in a portion extending to the outside of each of the pair of virtual surfaces VS and VS ′. More specifically, the top sheet 3 has a plurality of flange portions 27 and a plurality of groove portions 29 extending in the longitudinal direction L, respectively, and one of the plurality of flange portions 27 and One groove portion 29 of the plurality of groove portions 29 is arranged so as to be alternately arranged in the width direction W. That is, the groove structure of the top sheet 3 has a plurality of groove portions 29 extending in the longitudinal direction L and arranged in parallel in the width direction W, and two adjacent groove portions 29 among the plurality of groove portions 29 in the width direction W. It consists of the collar part 27 extended between.

Furthermore, in the sanitary napkin 1 according to the present embodiment, the plurality of groove portions 29 are embossed portions formed by heat embossing. In the heat embossing process, among the surfaces located on the skin facing surface side of the topsheet 3, a large number of parts that are separated from each other are heated in the thickness direction T and simultaneously heated. Thereby, in the surface sheet 3, the first sheet 3a and the second sheet 3b are integrated, and a groove portion 29 having a predetermined depth is formed.
The uneven structure in the absorbent article of the present disclosure can be formed by, for example, a method described in JP2009-279098A, JP2010-1154749A, or the like. Further, the pitch of the embossed portions (that is, the interval between the groove portions) is usually 0 to 10 mm, preferably 0.5 to 2 mm in the longitudinal direction, and is usually 0.1 to 10 mm, preferably 1 to 4 mm in the width direction. is there. Furthermore, the depth of the embossed portion is 0.1 to 5 mm, preferably 0.1 to 1 mm.

  In addition, in this specification, the measurement of the height or thickness of a target object (a collar part, a loop part, etc.) shall be as follows. The measurement is performed in a non-contact manner using a laser displacement meter (for example, a high-precision two-dimensional laser displacement meter LJ-G series (model: LJ-G030) manufactured by Keyence Corporation) as follows. The absorbent article containing the object is placed on a horizontal measurement table, the displacement from the measurement table is measured with a laser displacement meter for five different parts of the object, and the average value of the five measurements is the object. The height or thickness (mm).

  When the top sheet has the ridge groove structure as described above, the liquid discharged from the wearer is likely to diffuse in the longitudinal direction of the absorbent article, but is less likely to diffuse in the width direction compared to the longitudinal direction. , Difficult to leak sideways. Furthermore, since the surface sheet has the above-described groove-groove structure, a difference in rigidity occurs at the boundary between each flange and each groove, so that it is easy to induce deformation in the width direction of the absorbent article according to the wearer's body shape. .

In addition, although the surface sheet in the absorbent article in the present disclosure is preferably provided with a concavo-convex structure from the viewpoint of obtaining the above-described effects, the concavo-convex structure is not necessarily provided.
The size of the top sheet is not particularly limited as long as it can cover the skin-facing surface of the absorbent body and can form a pair of loop portions described later. Arbitrary dimensions and shapes according to sex, usage, etc. can be adopted. The basis weight of the topsheet is not particularly limited as long as it does not inhibit the effect of the present disclosure, for example, it can be adopted a basis weight in the range of ^{5g / m 2 ~100g / m 2} , a liquid-permeable basis weight or within the range in view of the 20g / m ² ~50g / m ² flexibility is preferred. In the present specification, the basis weight can be measured according to JIS L 1906 5.2.

[Absorber]
Next, an absorbent body that can be used in 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 7 is disposed between the top sheet 3 and the back sheet 9 in the thickness direction T. It is an absorptive member having a function of absorbing and holding the liquid excretion of the wearer that has permeated the top sheet 3. As shown in FIG. 1, the absorbent body 7 has a vertically long outer shape in which a front edge and a rear edge in the longitudinal direction L protrude in an arc shape on the front side and the rear side, respectively, in a plan view. In the longitudinal direction L of the sanitary napkin 1, the sanitary napkin 1 is disposed so as to extend from the excretory opening corresponding region R3 to the longitudinal end region R4, R4 ′.

In the absorbent article of the present disclosure, the absorber is not particularly limited, and any absorber known in the art can be used. As such an absorber, the absorptive material containing water absorbing fibers, such as a pulp, and / or an absorptive polymer (SAP) may be included, for example. In addition, the basic weight of an absorber is 20-1000 g / m < ² >, for example, Preferably 50-800 g / m < ³ > is mentioned. Moreover, when an absorber contains an absorptive polymer, the basic weight of an absorptive polymer is 50-500 g / m < ² > as the whole absorber, Preferably 100-400 g / m < ² > is mentioned.
Furthermore, the absorbent body in the absorbent article of the present disclosure may include at least one liquid-permeable covering sheet (so-called core wrap) such as a tissue.
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 hindered. For example, a thickness within the range of 0.1 mm to 10 mm can be adopted. A thickness in the range of 0.3 mm to 3 mm is preferable from the viewpoint of flexibility.

  In the present disclosure, the absorbent body is not limited to the above-described embodiment, and the absorbent body may have an arbitrary outer shape such as a rectangular shape, an oval shape, an hourglass shape, and the like. The article may be arranged so as to be biased toward the front or back in the longitudinal direction of the article. However, when the absorbent core made of an absorbent material containing a water-absorbing fiber such as pulp and / or a superabsorbent polymer has an hourglass shape, that is, in the region corresponding to the excretion port in the longitudinal direction, it is bound in the width direction. Even if it has a shape, from the viewpoint of the productivity of the absorbent body (more specifically, the efficiency in the cutting process of the liquid-permeable covering sheet), the overall shape of the absorbent body is rectangular or oval. You may have a shape.

Moreover, in the modification of the sanitary napkin 1 which concerns on this embodiment, the absorber has an hourglass-shaped external shape. In this modification, the absorbent body has a pair of constricted portions constricted in the width direction W in at least a part of the excretory opening corresponding region R3 in the longitudinal direction L. More specifically, the pair of constricted portions are, in plan view, the side edges extending in the longitudinal direction L of the absorbent body in the excretory opening corresponding region, and the length in the width direction W is longer than the other portions. It is narrowly formed.
In this modification, the absorbent body has the above-described constricted portion, so that it is easy to suppress the contact opportunity between the absorbent body and the wearer's crotch in the excretory opening corresponding region, and the absorbent body is the wearer's crotch. Since it is easy to contact through a part (namely, a pair of loop parts mentioned below) with many chances of contact with a part, and the hardness of an absorber is hard to be transmitted to a wearer's crotch part, it is easy to control a sense of incongruity at the time of wear.

[Side sheet]
As shown in FIGS. 1, 4, and 5, the side sheets 5 and 5 ′ in the sanitary napkin 1 according to this embodiment are near both side edges extending in the longitudinal direction L in the main body region R <b> 1 and in the longitudinal direction L. It extends from the region over the entire region to each of the side regions R2, R2 ′ in the width direction W, and is configured by a hydrophobic sheet member that prevents leakage of liquid excrement such as menstrual blood and urine discharged from the wearer. . The pair of side sheets 5 and 5 ′ are positioned between the top sheet 3 and the absorber 7 in the thickness direction T in the pair of virtual surfaces VS and VS ′. In the present embodiment, one side edge portion extending in the longitudinal direction L of the side sheets 5, 5 ′ overlaps the skin facing surface side of the pair of side edges 13, 13 ′ extending in the longitudinal direction L of the absorbent body 7. On the other hand, the other side edge portion is joined to the skin facing surface of the back sheet 9 at the flap portions 19 and 19 ′.
In the sanitary napkin 1, since the pair of side sheets 5, 5 ′ are made of a hydrophobic material, liquid return in the side regions R2, R2 ′ can be easily suppressed, and discomfort at the time of wearing is suppressed to improve wearability. Easy to do.

  In addition, the side sheet in the absorbent article of the present disclosure is not limited to the above embodiment, and has non-woven fabric and air permeability as long as it has various characteristics (hydrophobicity, flexibility, etc.) that can be used as the side sheet of the absorbent article. A known side sheet member such as a resin film such as polyethylene or polypropylene, or a sheet made of thermoplastic resin can be used.

[Loop part]
In the sanitary napkin 1 according to the present embodiment, as shown in FIGS. 1, 2, 4, and 5, in the excretory opening corresponding region R <b> 3 in the longitudinal direction L, the topsheet 3 has a pair of virtual surfaces VS and VS ′. As a pair of base ends, it passes through a pair of outer end portions 31, 31 ′ existing outside the pair of virtual surfaces VS, VS ′ in the width direction W, and the width direction W of the pair of outer end portions 31, 31 ′. A pair of loop portions 35, 35 ′ are provided which are joined to the pair of side sheets 5, 5 ′ with the pair of joint portions 33, 33 ′ as a pair of terminal ends.

In the sanitary napkin 1 according to the present embodiment, the pair of loop portions 35 and 35 ′ have the pair of virtual surfaces VS and VS ′ in the top sheet 3 as the base ends P1 and P1 ′, respectively, and the joint portions 33 and 33 ′. This is a portion formed by folding the top sheet 3 into a loop shape, which is defined as the end points P2 and P2 ′. The outer end portions 31, 31 ′ where the topsheet 3 is folded are located on the outermost side in the width direction W of the pair of loop portions 35, 35 ′, and the pair in the excretory opening corresponding region R <b> 3 in the longitudinal direction L and in the width direction W. The side regions R2 and R2 ′ extend in the longitudinal direction L.
Further, as shown in FIG. 5, the joint portions 33 and 33 ′ are inside the width direction W of the virtual surfaces VS and VS ′ of the main body region R 1 and in the vicinity of the width direction W of the virtual surfaces VS and VS ′. It is provided between the top sheet 3 and each of the side sheets 5, 5 '. In the absorbent article of the present disclosure, the distance in the width direction between the joint portion and the side edge extending in the longitudinal direction of the absorbent body is preferably 2 to 25 mm, more preferably 5 to 15 mm. As will be described below, this is from the viewpoint of ensuring cushioning of the pair of loop portions.

In the absorbent article of the present disclosure, the distance in the width direction between each of the pair of virtual surfaces serving as the base ends of each of the pair of loop portions and the outer end portion is preferably 5 to 35 mm, and more preferably 8 mm. ~ 30 mm. As will be described below, this is from the viewpoint of ensuring cushioning of the pair of loop portions.
In the absorbent article of the present disclosure, the length in the longitudinal direction of the pair of loop portions may extend at least over a part of the side region in the width direction and the entire region corresponding to the excretion opening in the longitudinal direction. preferable. As described above, at the outer end portion of the pair of loop portions where the top sheet is frequently contacted with the wearer's crotch portion, the pair of loop portions are arranged on the outer side in the width direction at least in the region corresponding to the excretion opening. Due to the projecting configuration, the absorbent article of the present disclosure has a suitable cushioning property and does not easily irritate the wearer's crotch as described below.

Furthermore, the maximum height of the pair of loop 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 described below, this is from the viewpoint of ensuring cushioning of the pair of loop portions.
Here, in this specification, the maximum height of the object (loop part, excretion opening corresponding region, etc.) refers to the maximum value of the object height from the horizontal reference plane on which the absorbent article is placed. , And can be measured with the laser displacement meter. Moreover, the natural state of the absorbent article refers to a state in which an external force other than the gravity of the absorbent article is not working in a state where the absorbent article is deployed.

Further, in the sanitary napkin 1, the maximum height of the pair of loop portions 35, 35 ′ in the natural state is the maximum height of the excretory opening corresponding region R3 (that is, from the horizontal reference plane on which the sanitary napkin 1 is placed). It is higher than the height of the highest position in the flange portion 27 in the concavo-convex structure of the topsheet 3. With this configuration, each of the pair of loop portions 35 and 35 'is easily deformed according to the shape of the wearer's crotch portion, so that it is difficult to sense the hardness and irritation of the absorbent body that the wearer's crotch portion receives. It is easy to suppress a sense of incongruity when worn.
In addition, each of the pair of loop portions in the absorbent article of the present disclosure is preferably 2.0 to 8.0 N · m / m in the thickness direction T from the viewpoint of securing cushioning properties in the excretion opening corresponding region. ² , more preferably 3.0 to 6.0 N · m / m ^2, still more preferably 3.5 to 5.5 N · m / m ² .
The WC (compression energy) means that the larger the value, the easier it is to compress, and the sample of the absorbent article is subjected to a compression property evaluation test by an automated compression tester “KES FB-3A” (manufactured by Kato Tech Co., Ltd.). It can be obtained by offering. At this time, the compressor of the testing machine is measured with its center aligned with the center portion in the width direction of the loop portion. The measurement conditions for the compression property evaluation test are as follows.
SENS: 2
Speed: 0.02mm / sec Stroke: 5mm / 10V
Compactor area: 2 cm ²
Uptake interval: 0.1 seconds Upper limit load: 50 gf / cm ²
Number of repetitions: 1 time When the WC (compression energy) in the thickness direction T of each of the pair of loop portions is within the numerical range, each of the pair of loop portions is also disclosed in the width direction W. It is thought that suitable cushioning properties can be exhibited in the absorbent article.

Here, in the sanitary napkin 1 which concerns on this embodiment, the effect by providing a pair of loop parts 35 and 35 'is demonstrated. FIG. 6 is a schematic diagram of a state in which the sanitary napkin 1 according to the embodiment of the present disclosure is worn.
As shown in FIG. 6, when the wearer wears the sanitary napkin 1 on the shorts S and wears the sanitary napkin 1, the wearer's crotch presses the sanitary napkin 1 in the width direction. Here, since the sanitary napkin 1 includes the pair of loop portions 35 and 35 ′ as described above, in the width direction W, the pair of loop portions 35 and 35 ′ protrudes outward from the absorber 7, The pair of loop portions 35 and 35 ′ are configured to cover the pair of side edges 13 and 13 ′ of the absorber 7. Therefore, even if a wearer wears sanitary napkin 1 and sanitary napkin 1 thru / or absorber 7 changes according to a shape of a wearer's crotch, a pair of loop parts 35 and 35 'will become absorber 7 It is easy to be deformed following the movement, and it is easy to maintain adhesion with the wearer. Therefore, the sanitary napkin 1 according to the present embodiment easily suppresses side leakage.

In addition, when the wearer's crotch presses the sanitary napkin 1 in the width direction, the pair of loop portions 35 and 35 ′ makes it difficult for the wearer's crotch to sense the hardness of the absorbent body 7. Functions like a material. That is, when the wearer's crotch presses the sanitary napkin 1 in the width direction, the wearer's crotch is a cushion of a pair of loop portions 35 and 35 ′ before the absorbent body 7 contacts the wearer's crotch. It is easy to feel the nature (that is, softness and repulsion). When the wearer's crotch further presses the sanitary napkin 1 in the width direction, the wearer's crotch is a pair of loop portions 35 and 35 ′ until the absorbent body 7 comes into contact with the wearer's crotch. It is easy to get a stronger sense of cushioning. As a result, even if the wearer's crotch further presses the sanitary napkin 1 in the width direction and the absorbent body 7 comes into contact with the wearer's crotch, the wearer's crotch is still in contact with the absorbent body 7. Since the crotch senses the cushioning properties of the pair of loop portions 35, 35 ', the hardness of the absorber is transmitted to the wearer's crotch without sensing the cushioning properties of the pair of loop portions. In comparison, the sanitary napkin 1 can make the wearer's crotch difficult to perceive the hardness of the absorbent body. Therefore, with the above configuration, the hardness of the absorbent body 7 is not easily transmitted to the wearer's crotch. Moreover, in the sanitary napkin 1 according to the present embodiment, the pair of loop portions 35 and 35 ′ are arranged at a position on the skin facing surface side of the absorbent body 7, and the wearer's crotch portion is the sanitary napkin 1. Is pressed in the width direction, and the pair of loop portions 35 and 35 ′ protruding outward from the absorbent body 7 are easily deformed flexibly so as to be crushed in the width direction W according to the shape of the wearer's crotch. And since the said deformation | transformation is hard to be inhibited by the absorber 7, the cushion property of the said pair of loop parts 35 and 35 'is easy to be sensed by a wearer's crotch part.
From the above, the sanitary napkin 1 according to the present embodiment is easy to improve the wearability by suppressing discomfort during wearing.

As shown in FIG. 5, in the pair of loop portions 35, 35 ′ of the sanitary napkin 1 according to this embodiment, the pair of base ends P 1, P 1 ′ are directly or indirectly connected to the pair of terminal ends P 2, P 2 ′. Not joined. In the thickness direction T, the pair of base ends P1 and P1 ′ and the pair of terminal ends P2 and P2 ′ are separated by air.
Thus, in the pair of loop portions 35 and 35 ′, the pair of base ends P1 and P1 ′ and the pair of terminal ends P2 and P2 ′ are not joined, or the pair of base ends P1 and P1 ′ are not connected to each other. The sanitary napkin 1 does not have a joint portion between the pair of proximal ends P1 and P1 ′ and the pair of terminations P2 and P2 ′ because it is not joined to the pair of terminations P2 and P2 ′ via the sheet member. It is difficult to cause irritation and pressure on the wearer's crotch. Therefore, the sanitary napkin 1 is easy to improve the wearability by suppressing the uncomfortable feeling when worn.

In the sanitary napkin 1 according to the present embodiment, each of the pair of loops 35 and 35 ′ does not include an elastic member. With this configuration, the sanitary napkin 1 can easily reduce irritation and pressure generated in the wearer's crotch due to the contraction force of the elastic material.
In the absorbent article according to the present disclosure, the fact that each of the pair of loop portions does not include an elastic member means that the elastic member disposed in each of the pair of loop portions and the inside of each of the pair of loop portions. It means that the elastic member is not included.
In the sanitary napkin 1 according to the present embodiment, as shown in FIGS. 4 and 5, each of the pair of loop portions 35 and 35 ′ is a pair of virtual surfaces VS and VS serving as the base ends P 1 and P 1 ′. 'And the joints 33 and 33' serving as the terminal ends P2 and P2 ', the upper loop portions 37 and 37' positioned on the skin facing surface and the lower loop portions 39 and 39 'positioned on the non-skin facing surface. And have.

Furthermore, in the sanitary napkin 1 according to the present embodiment, as shown in FIGS. 2, 4, and 5, each of the pair of loop portions 35 and 35 ′ is formed from the pair of virtual surfaces VS and VS ′ to the outer end portion 31, It protrudes on the skin facing surface side so that the outer end portions 31 and 31 ′ are the highest over 31 ′. And lower loop part 39, 39 'located in the non-skin opposing surface in each of a pair of loop parts 35, 35' is spaced apart from the side seats 5, 5 '.
Since the pair of loop portions 35 and 35 'has such a shape, each of the pair of loop portions 35 and 35' is easily deformed according to the shape of the wearer's crotch portion. Since it is difficult to sense the hardness of the absorbent body 7 in the part, the sanitary napkin 1 is easy to improve the wearability by suppressing the uncomfortable feeling when worn.

  Further, in the sanitary napkin 1 according to the present embodiment, each of the pair of loop portions 35 and 35 ′ is formed on the outer surface ES (that is, the skin facing surface of the upper loop portions 37 and 37 ′ and the lower loop portions 39 and 39 ′). A non-skin facing surface that is exposed to the outside) and an inner surface IS (that is, the non-skin facing surface of the upper loop portions 37 and 37 ′ and the skin facing surface of the lower loop portions 39 and 39 ′) And a surface not exposed to the outside). And as for each of a pair of loop parts 35 and 35 ', one part in inner surface IS is not joined with the other part, that is, inner surface IS is not joined, and a certain amount is set in the internal space. Contains air. Therefore, the upper loop portions 37 and 37 ′ and the lower loop portions 39 and 39 ′ have a soft feeling and are not easily damaged in flexibility, and the wearer holds the sanitary napkin 1 in the width direction W at the crotch portion. A cushioning function that makes it difficult to sense the hardness of the absorbent body 7 even when pressed to a greater degree can be ensured. Furthermore, since the inner surfaces IS are not joined to each other, the flexibility in the pair of loop portions 35 and 35 ′ is hardly impaired, and it is difficult to sense the hardness and irritation of the absorbent body 7 received by the wearer's crotch portion, It is easy to suppress discomfort during wearing.

Moreover, in the sanitary napkin 1 which concerns on this embodiment, as mentioned above, the surface sheet 3 is formed with the air through nonwoven fabric.
Here, the air-through nonwoven fabric or the spunlace nonwoven fabric is a process of forming a web by dropping and depositing fibers placed on an airflow onto the net at the time of production, and from above the web on the net on the net. It is a nonwoven fabric that has undergone a process of performing web bonding by penetrating high-temperature air or a high-pressure water stream, that is, a nonwoven fabric manufactured using a net. A net surface that was in contact with the net (located on the net) and a surface that was not in contact with the net and was directly exposed to high-temperature air or high-pressure water flow (air surface) have. A nonwoven fabric having such a net surface and an air surface has a lower fiber density than the net surface and a soft touch.

And in this embodiment, the surface sheet 3 is arrange | positioned so that each outer surface ES of a pair of loop parts 35 and 35 'may turn into an air surface.
In the sanitary napkin 1 according to the present embodiment, since the topsheet 3 is made of an air-through nonwoven fabric arranged in the specific form, the outer surfaces ES of the pair of loop portions 35 and 35 'have a smooth touch, Even if the wearer's crotch comes into contact with the pair of loop portions 35 and 35 ', there is little irritation to the skin, and it is easy to suppress a sense of incongruity during wearing.

In the sanitary napkin 1 according to the present embodiment, as shown in FIG. 5, the end portions 41 and 41 ′ in the width direction W of the second sheet (second sheet) 3 b are the pair of loop portions 35 and 35 ′. Although overlapping with each other in the thickness direction T, each of the end portions 41 and 41 ′ in the width direction W of the second sheet (second sheet) 3b exists in each of the pair of side regions R2 and R2 ′. The pair of loop portions 35, 35 ′ are not joined to the inner surface IS.
In the sanitary napkin 1 according to the present embodiment, the second sheet (second sheet) 3b is arranged in the above-described specific form in relation to the pair of loop portions 35 and 35 ', thereby the second sheet (second sheet). ) Due to the presence of 3b, the pair of loop portions 35 and 35 'are not easily crushed and their flexibility is not easily lost. As a result, it is difficult to sense the hardness and irritation of the absorbent body received by the wearer's crotch part, and it is easy to suppress an uncomfortable feeling during wearing.

As shown in FIG. 5, in the sanitary napkin 1 according to this embodiment, each of the pair of joint portions 33 and 33 ′ is present inside the width direction W with respect to the pair of virtual surfaces VS and VS ′. .
In the sanitary napkin 1, the pair of loops 35 and 35 ′ are formed by the surface sheet 3 folded back at the pair of outer end portions 31 and 31 ′ and the pair of side sheets 5 and 5 ′ as a pair of virtual surfaces VS and VS. Even if the wearer wears the sanitary napkin 1 and the sanitary napkin 1 to the absorbent body 7 are deformed along the shape of the crotch of the wearer, The loop portions 35 and 35 ′ are more easily followed by deformation of the absorber 7, easily maintain adhesion with the wearer, and easily suppress side leakage. Further, the pair of loop portions 35 and 35 ′ having such a structure is formed by joining the top sheet 3 and the pair of side sheets 5 and 5 ′ outside the width direction W of the pair of virtual surfaces VS and VS ′. Compared to the case, the outer peripheral length in the width direction W becomes longer, and the room for standing on the skin facing surface side increases.

FIG. 7 is a schematic diagram illustrating a positional relationship between the joint portions 33 and 33 ′ and the end region joint portion in the sanitary napkin 1 according to the embodiment of the present disclosure.
In the present embodiment, in the excretory opening corresponding region R3 in the longitudinal direction L, the top sheet 3 and the pair of side sheets 5 and 5 ′ are joined by the pair of joining portions 33 and 33 ′, while the pair in the longitudinal direction L. In the longitudinal direction end region R4, R4 ′, the top sheet 3 and the pair of side sheets 5, 5 ′ are joined by the end region joining portions 43, 43 ′.
Moreover, although a pair of junction part 33, 33 'in this embodiment is continuously extended in the excretion opening corresponding | compatible area | region R3 in the longitudinal direction L (namely, between the individual wrapping folding lines L1 and L2), respectively. The pair of joints in the present disclosure may be disposed continuously or intermittently as long as they are within the excretion opening corresponding region in the longitudinal direction. On the other hand, the pair of end region joint portions 43 and 43 ′ in the present embodiment continuously extend in the longitudinal direction end region R4 and R4 ′ in the longitudinal direction L, respectively. The partial region joints may be disposed continuously or intermittently as long as they are within the longitudinal end region in the longitudinal direction.

And as shown in FIG. 7, a pair of edge part junction part 43, 43 'exists in the outer side in the width direction W rather than a pair of junction part 33, 33'. Thus, in the sanitary napkin 1, since the pair of joint portions 33, 33 ′ and the pair of end region joint portions 43, 43 ′ are in a predetermined positional relationship, the pair of loop portions 35, 35 ′ It is easy to ensure the distance in the width direction W between the pair of joint portions 33, 33 ′ and the pair of outer end portions 31, 31 ′, and it is easy to stand on the skin facing surface side. Furthermore, since it is easy to join the top sheet 3 and the pair of side sheets 5 and 5 ′ in the pair of longitudinal end regions R4 and R4 ′ on the outer side in the width direction by the end region joining portions 43 and 43 ′, The two sheets in the pair of longitudinal end regions R4, R4 ′ are difficult to turn to the center in the width direction, and the pair of loop portions 35, 35 ′ are interlocked with both sheets in the pair of longitudinal end regions R4, R4 ′. It is easy to suppress turning over to the center in the width direction.
In the absorbent article according to the present disclosure, the position in the width direction of the end region joining portion may be either outside or inside in relation to the virtual surface, but from the viewpoint of preventing turning as described above. Is preferably located outside the virtual plane in the width direction.

Moreover, it is preferable that a pair of edge part area | region junction part in this indication is an embossing part extended continuously or intermittently in a longitudinal direction. Moreover, this embossed part can be formed by heat embossing etc. similarly to the embossed part which forms the groove part in a surface sheet.
When the pair of end region joining portions are embossed portions, the absorbent article in the pair of longitudinal direction end regions is easily deformed along the wearer's body shape.

  Moreover, in the sanitary napkin 1 in this embodiment, as shown in FIG. 7, the individual wrapping folding lines L1 and L2 are closer to the end in the longitudinal direction L of the sanitary napkin 1 than the pair of joint portions 33 and 33 ′. positioned. With this configuration, the individual wrapping folding lines L1 and L2 and the pair of loop portions 35 and 35 ′ are unlikely to overlap in the longitudinal direction L, and the pair of loop portions 35 and 35 ′ can easily stand on the skin facing surface side. Hard to block.

[Pressing 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 is at least in the excretory opening corresponding region R3 and a pair of joint portions. In the width direction W inner side than 33 and 33 ', it has a pair of pressing parts 23 and 23' extended in the longitudinal direction L which squeezed from the top sheet 3 to the absorber 7. FIG.
With such a configuration, the absorbent body 7 positioned on the outer side in the width direction W than the pair of compressed portions 23 and 23 ′ is likely to be raised on the skin facing surface side, and closer to the skin facing surface side than the absorbent body 7 in the raised portion. The pair of loop portions 35 and 35 'positioned easily stand up on the skin facing surface side. Accordingly, the pair of loop portions 35 and 35 'are in close contact with the wearer's crotch portion and easily absorb body fluid, so that side leakage is easily prevented. In addition, as described above, the sanitary napkin 1 does not include an elastic member in each of the pair of loop portions. Therefore, even if the pair of loop portions 35 and 35 ′ stand on the skin facing surface side, It is easy to reduce irritation and pressure.

  In addition, in the absorbent article of this indication, a pair of pressing parts are not restricted to the thing of said aspect, You may be provided only in a part in the longitudinal direction of the excretion opening corresponding | compatible area | region of an absorbent article. Furthermore, a pair of pressing parts may be provided also in the whole area or a part of longitudinal direction edge part area | region in a longitudinal direction. Even in such a case, in the absorbent article, the vicinity of both side edges extending in the longitudinal direction of the absorbent article starting from the pair of compressed parts is likely to be raised to the skin facing surface side, and the pair of loop parts are also skinned. It becomes easy to stand on the opposite surface side. As a result, the absorbent article makes it difficult to sense the hardness and irritation of the absorbent body received by the wearer's crotch, and easily suppresses a sense of discomfort during wearing.

As shown in FIG. 4, the sanitary napkin 1 according to the present embodiment is located in the excretory opening corresponding region R3 in the longitudinal direction L and in the main body region R1 in the width direction W, rather than the pair of compressed portions 23 and 23 ′. It is divided into pressing part inner side area | region R5 located inside width direction W, and a pair of pressing part outer side area | region R6, R6 'located in the outer side of width direction W rather than a pair of pressing parts 23 and 23'.
Moreover, in this embodiment, the absorber 7 has an absorptive polymer (not shown), and as shown in FIG. 4, in sanitary napkin 1, pressing part outer side area | region R6, R6 'is an absorber. 7 is a high basis weight region in which the basis weight of the absorbent polymer is higher than the compressed portion inner region R5.
In sanitary napkin 1, in a pair of pressing part outside field R6 and R6 '(namely, high basic weight field of absorber 7), the basic weight of an absorptive polymer is high, and there are many absorptive polymers. In such a high basis weight region, the sanitary napkin 1 is easy to suppress side leakage because it has a larger absorption capacity than other regions. Further, in the sanitary napkin 1, even if the high basis weight region R6 is provided at the position, the wearer can absorb the absorbent body 7 and thus the hardened absorbent polymer by the buffering action of the pair of loop portions 35 and 35 ′. It's hard to impress. As a result, the sanitary napkin 1 is easy to improve the wearability by suppressing the uncomfortable feeling when worn.

  Moreover, the absorber in this indication adjusts an absorptive polymer distribution suitably so that the basic weight of an absorptive polymer may become high with respect to a portion corresponding to a pressing part outside field rather than a part corresponding to a pressing part inside field. Can be produced. In addition, from the viewpoint of efficiently suppressing the side leakage of the absorbent article, for example, the basis weight of the absorbent polymer in the compressed portion inner region is 0 of the basis weight of the absorbent polymer in each of the pair of compressed portion outer regions. It is in the range of -80%, preferably in the range of 0-50%.

[Back sheet]
In the sanitary napkin 1 according to the present embodiment, as shown in FIGS. 1, 3, 4, and 5, the back sheet 9 is a non-skin facing surface in the thickness direction T in a region extending over the entire surface of the sanitary napkin 1. The liquid-impermeable sheet member is disposed on the side and prevents leakage of liquid excretion such as menstrual blood and urine discharged from the wearer. Such a liquid-impermeable sheet member has various properties that can be used as a back sheet of an absorbent article (liquid-impermeable, breathable, flexible, etc.), a resin film such as polyethylene or polypropylene having air permeability, heat A known liquid-impermeable sheet member such as a plastic resin sheet can be used.

  Note that the absorbent article of the present disclosure is not limited to the above-described embodiments and exemplary descriptions, and can be appropriately combined and changed without departing from the purpose and spirit of the present disclosure. In addition to the sanitary napkin of the above embodiment, the present disclosure can be applied to various absorbent articles such as a panty liner and a (light) incontinence pad. In this specification, ordinal numbers such as “first” and “second” are used to distinguish items with the ordinal numbers, and mean the order, priority, importance, etc. of each item. Not what you want.

DESCRIPTION OF SYMBOLS 1 Sanitary napkin 3 Top sheet 5, 5 'Side sheet 7 Absorber 9 Back sheet 11 Adhesive part 13, 13' A pair of side edge 15 of the absorber 7 Packaging sheet 23, 23 'Squeeze part 31, 31' Outer end Part 33, 33 'Joint part 35, 35' Loop part 43, 43 'End region joint part VS, VS' Virtual plane L1, L2 Individual wrapping line P1, P1 'Base end P2, P2' End R3 Excretion port corresponding region R4, R4 ′ Longitudinal end region R5 Pressed portion inner region R6 Pressed portion outer region (high basis weight region)

Claims (12)

An absorbent article having a longitudinal direction, a width direction, and a thickness direction, and having a skin facing surface and a non-skin facing surface,
The absorbent article includes a liquid-permeable top sheet, a pair of side sheets, an absorber, a liquid-impermeable back sheet, and an adhesive part for fixing clothes,
The absorbent article has a pair of virtual surfaces extending in the thickness direction from a pair of side edges of the absorber,
The pair of side sheets are positioned between the top sheet and the absorber in the thickness direction in the pair of virtual surfaces,
In the excretion opening corresponding region corresponding to the excretion opening in the longitudinal direction, the absorbent sheet has the pair of virtual surfaces as a pair of base ends, and the outer side in the width direction than the pair of virtual surfaces. A pair of loop portions that are joined to the pair of side sheets with the pair of joining portions as a pair of terminal ends on the inner side in the width direction of the pair of outer end portions. An absorbent article, comprising:   The absorptive article according to claim 1 in which each of said pair of joined parts exists in the inside of said width direction rather than said pair of virtual surfaces.   The absorbent article according to claim 1 or 2, wherein in the pair of loop portions, the pair of base ends are not directly or indirectly joined to the pair of terminal ends.   Each of a pair of said loop part is an absorbent article as described in any one of Claims 1-3 which does not contain an elastic member.   The absorbent article squeezed from the top sheet to the absorbent body at least in the region corresponding to the excretion opening and inside the pair of joints in the width direction, and extends in the longitudinal direction. The absorbent article as described in any one of Claims 1-4 further provided with a part. The absorber has an absorbent polymer;
In the absorbent article, the basis weight of the absorbent polymer of the absorbent body is higher in the width direction than in the pair of compressed parts, and is higher than the pair of compressed parts in the width direction. The absorbent article of Claim 5 which has a quantity area | region. The absorbent article has a pair of longitudinal end regions adjacent to the excretion opening corresponding region in the longitudinal direction in plan view,
The absorbent article has a pair of end region joining portions that join the top sheet and the pair of side sheets in the pair of longitudinal end region,
The absorbent article according to any one of claims 1 to 6, wherein the pair of end region joint portions are present outside the pair of joint portions in the width direction.   The absorbent article according to claim 7, wherein the pair of end region joining portions are embossed portions that extend continuously or intermittently in the longitudinal direction. The absorbent article is folded on the skin facing surface side with at least one individual wrapping fold line extending in the width direction, and individually wrapped with a wrapping sheet,
The absorptive article according to any one of claims 1 to 8 in which said individual wrapping line is located in the end part side of said absorptive article rather than said a pair of joined parts.   Each of the pair of loop parts is an absorbent article according to any one of claims 1 to 9, wherein one part of the inner surface is not joined to the other part.   The absorptive article according to any one of claims 1 to 10 in which said surface sheet consists of air through nonwoven fabric, and is arranged so that each outer surface of said pair of loop parts may become an air surface.   Each of a pair of said side sheet | seat consists of a hydrophobic sheet | seat, The absorbent article as described in any one of Claims 1-11.

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