KR102411325B1 - absorbent article - Google Patents

Abstract

An object of this indication is to provide the absorbent article which improves lateral leakage and is easy to improve wearability, suppressing the uncomfortable feeling at the time of wearing.
The absorbent article 1 includes a liquid-permeable topsheet 3, a pair of side sheets 5 and 5', an absorbent body 7, a liquid-impervious backsheet 9, and for fixing clothing. A side sheet 5, having an adhesive portion 11 of 5') is located between the topsheet 3 and the absorber 7 in the thickness direction T on the virtual surfaces VS and VS', and in the excretory port correspondence region R3 in the longitudinal direction L , the topsheet 3 passes through the outer ends 31 and 31' with the virtual surfaces VS and VS' as the base ends P1 and P1' and ends at the ends P2, It has a pair of loop parts 35 and 35' joined to the side sheets 5 and 5' as P2').

Description

absorbent article

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

Absorbent articles such as sanitary pads, panty liners, and incontinence pads prevent leakage of the wearer's body fluid and are worn for a long time while in contact with the wearer's groin, so that they are good for the body and comfortable. It is demanded to be fitted. Therefore, in the conventional absorbent article, for example, elastic side flaps are provided at a position corresponding to the wearer's crotch in the absorbent article, and the fitability is improved by increasing the adhesion between the absorbent article and the wearer. Absorbent articles are being considered.

As such an absorbent article, for example, Patent Document 1 discloses a liquid-permeable top sheet, a liquid-impervious back sheet, and a space between the top sheet and the back sheet to absorb the liquid exuded from the human body. An absorbent article having a liquid absorbent pad having a pair of positioned side edges, the absorbent body pad comprising: i) elastic side flaps along each side edge of the absorbent body pad, the side flaps comprising: A loop member extending from the side edge and returning in a loop toward the side edge, the absorbent body pad having an opening near the side edge, a base end, a tip, a portion facing the garment, and a face to the wearer an insertion member extending into the roof member through the base end opening, the insertion member having a tip and a base end adjacent to the base end opening; an elastic material attached along a portion of the length of the insert member and not attached to the loop member; An absorbent article is proposed, having a seal to attach at the in-place, and ii) having wings adjacent to and extending transversely from a seam disposed along each side edge of the absorbent pad. According to the absorbent article disclosed in this patent document 1, it is supposed that the fitting property of an absorbent article can be improved.

Japanese Patent Application Publication No. 8-503638

In the conventional absorbent article described in Document 1, a pair of elastic side flaps are provided along each side edge of the absorbent pad for the purpose of improving the fitability to the body during use and suppressing lateral leakage. However, the said pair of elastic side flaps is arrange|positioned at the position away from the absorber pad in the width direction of the said absorbent article. Therefore, when the wearer wears the absorbent article and the absorbent article or the absorbent pad deforms along the shape of the wearer's crotch, the pair of elastic side flaps cannot fully follow the deformation of the absorbent pad, and the wearer Adhesiveness with was reduced, and lateral leakage could not fully be suppressed in some cases. In addition, 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 formed between the respective side edges of the absorbent pad and the crotch of the wearer. Since each side edge of the absorbent pad does not function as a buffer zone with the part, there is a fear that each side edge of the absorbent pad abuts on the crotch of the wearer via the liquid-permeable top sheet, thereby giving the wearer a sense of discomfort.

Then, this indication aims at providing the absorbent article excellent in wearability with little lateral leakage while suppressing the discomfort at the time of wearing.

The absorbent article according to the present disclosure,

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 comprising:

The absorbent article includes a liquid-permeable top sheet, a pair of side sheets, an absorbent body, a liquid-impervious back sheet, and an adhesive portion for fixing clothing;

The absorbent article has a pair of virtual surfaces extending in the thickness direction from a pair of side edges of the absorbent body;

The pair of side sheets is positioned between the top sheet and the absorber in the thickness direction on the pair of virtual surfaces,

In the absorbent article, in the excretory opening corresponding region corresponding to the excretory opening in the longitudinal direction, the topsheet has the pair of imaginary surfaces as the pair of proximal ends, so that the pair of imaginary surfaces is larger than the pair of imaginary surfaces. Via a pair of outer ends existing outside in the width direction, and inside the width direction of the pair of outer ends, a pair of junctions is set as a pair of terminal ends. It is characterized by having a pair of loop parts joined to the side sheet.

It is possible to provide an absorbent article in which lateral leakage is improved and wearability is easily improved while suppressing discomfort during wearing.

1 is a plan view of a sanitary pad 1 according to an embodiment of the present disclosure as viewed from the topsheet side in the thickness direction in an expanded state.
Fig. 2 is a perspective view of the sanitary pad 1 according to the embodiment of the present disclosure in a deployed state.
3 is a cross-sectional view of the sanitary pad 1 according to the embodiment of the present disclosure, taken along the longitudinal central axis C _L in the longitudinal direction.
4 is an enlarged cross-sectional view taken along the IV-IV section of FIG. 1 of the sanitary pad 1 according to the embodiment of the present disclosure.
5 : is an enlarged view of the area|region X in FIG.
6 is a schematic diagram of a state in which the sanitary pad 1 according to the embodiment of the present disclosure is worn.
7 is a schematic diagram showing the positional relationship between the junction part and the end region junction part in the sanitary pad 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 comprising:

The absorbent article includes a liquid-permeable top sheet, a pair of side sheets, an absorbent body, a liquid-impervious back sheet, and an adhesive portion for fixing clothing;

The absorbent article has a pair of virtual surfaces extending in the thickness direction from a pair of side edges of the absorbent body;

The pair of side sheets is positioned between the top sheet and the absorber in the thickness direction on the pair of virtual surfaces,

In the absorbent article, in the excretion port corresponding region corresponding to the excretion port in the longitudinal direction, the topsheet has the pair of imaginary faces as a pair of base ends, and the top sheet is positioned in the width direction rather than the pair of imaginary faces. A pair of side sheets joined to the pair of side sheets via a pair of outer end portions existing outside and on the inner side in the width direction of the pair of outer end portions using a pair of joint portions as a pair of terminal ends, An absorbent article having a pair of loop portions.

The absorbent article according to this aspect has a pair of loop portions having a predetermined configuration in an excretory port correspondence region, and the pair of loop portions are located on the skin-facing surface side of the pair of virtual surfaces on the side opposite to the skin than the absorber. Since it is joined to a pair of side sheets, the said pair of loop part is arrange|positioned so that a pair of side edge parts of the said absorber may be covered. Therefore, even when the wearer wears the absorbent article and the absorbent article or the absorbent body deforms along the shape of the wearer's crotch, the pair of loops easily follow the deformation of the absorbent body and maintain adhesion to the wearer. It is easy to do it, and it is easy to suppress lateral leakage. Moreover, it is difficult for the wearer to feel the hardness of the absorbent body due to the cushioning action of the pair of loops located on the skin-facing surface side rather than the absorbent body. As a result, the absorbent article which concerns on this aspect suppresses the uncomfortable feeling at the time of wearing, and it is easy to improve wearability.

[Mode 2]

The absorbent article according to Aspect 1, wherein each of the pair of junction portions exists inside the width direction rather than the pair of virtual surfaces.

In the absorbent article according to this aspect, in the pair of loop portions, the top sheet and the pair of side sheets folded back at the pair of outer ends are joined to the inside of 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 deforms along the shape of the wearer's crotch part, the pair of loops more easily follow the deformation of the absorbent body, and the wearer and It is easy to maintain the adhesiveness of , and it is easy to suppress lateral leakage. In addition, the pair of loop portions having the above configuration has a periphery length in the width direction compared to a case in which the top sheet and the pair of side sheets are joined to the outside of the pair of virtual surfaces in the width direction. length, and the room for standing on the skin-facing surface side increases. Accordingly, as a result of being able to more effectively exhibit the above-described effects of the pair of loop portions, it is easy to suppress discomfort during wearing and improve wearability.

[Mode 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, since the pair of base ends and the pair of terminal ends are not joined, or the pair of base ends are not joined with the pair of terminal ends via another sheet member, The absorbent article according to this aspect does not have a joint between the pair of base ends and the pair of terminal ends, and it is difficult to generate irritation or pressure in the crotch portion of the wearer. Therefore, the absorbent article which concerns on this aspect suppresses the uncomfortable feeling at the time of wearing, and it is easy to improve wearability.

[Mode 4]

The absorbent article according to any one of aspects 1 to 3, wherein each of the pair of loop portions does not include an elastic member.

Since the pair of loops do not include an elastic member, it is easy to reduce irritation and pressure generated in the crotch portion of the wearer due to the contractile force of the elastic material. Therefore, the absorbent article which concerns on this aspect suppresses the uncomfortable feeling at the time of wearing, and it is easy to improve wearability.

[Mode 5]

The absorbent article includes a pair extending in the longitudinal direction at least within the excretion opening corresponding region and inside the pair of joint portions in the width direction by pressing from the topsheet to the absorbent body. The absorbent article according to any one of aspects 1 to 4, further comprising a crimping portion.

Since the absorbent article according to this aspect has a predetermined pair of crimping portions, the absorbent body positioned outside the pair of crimping portions in the width direction tends to protrude toward the skin-facing surface side, and the absorbent body in the raised portions The pair of loop portions positioned on the skin-facing surface side are also more likely to stand on the skin-facing surface side. Accordingly, since the pair of loop portions are in close contact with the wearer's crotch portion and easily absorb body fluids, it is easy to prevent lateral leakage. Accordingly, as a result of being able to more effectively exhibit the above-described effects of the pair of loop portions, it is easy to suppress discomfort during wearing and improve wearability.

[Mode 6]

The absorber has an absorbent polymer,

The absorbent article has a high basis weight region outside the pair of crimping portions in the width direction, wherein the basis weight of the absorbent polymer of the absorbent body is higher than that inside the pair of crimping portions in the width direction, The absorbent article according to aspect 5.

In the absorbent article according to this aspect, the basis weight of the absorbent polymer is high, and a large amount of the absorbent polymer is present in the high basis weight region of the absorber that exists outside the pair of crimping portions in the width direction. In such an area, since it has a larger absorption capacity compared with other areas, the absorbent article tends to suppress lateral leakage. Moreover, in the said absorbent article, even if the high basis weight area|region is provided at the said position, it is hard for a wearer to feel the hardness of an absorbent body, furthermore, an absorbent polymer by the buffer action of the said pair of loops. As a result, the absorbent article which concerns on this aspect suppresses the uncomfortable feeling at the time of wearing, and it is easy to improve wearability.

[Mode 7]

The absorbent article has a pair of longitudinal end regions adjacent to the excretion opening corresponding region in the longitudinal direction in a plan view;

the absorbent article has, in the pair of longitudinal end regions, a pair of end region joining portions for joining the top sheet and the pair of side sheets together;

The absorbent article according to any one of Aspects 1 to 6, wherein the pair of end region junctions is outside the pair of junctions 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 is positioned in the width direction between the pair of joint portions and the pair of outer end portions. It is easy to secure the distance of , and it is easy to stand up on the skin-facing surface side. Further, since it is easy to join the pair of topsheets and the pair of side sheets in the end region in the longitudinal direction by the end region joining portion on the outer side in the width direction, the pair of longitudinal end regions In this case, both sheets are less likely to be turned to the center side in the width direction, and it is easy to suppress the pair of loop portions from being turned toward the center side in the width direction in conjunction with both sheets in the pair of longitudinal end regions. Accordingly, as a result of being able to more effectively exhibit the above-described effects of the pair of loop portions, it is easy to suppress discomfort during wearing and improve wearability.

[Mode 8]

The absorbent article according to aspect 7, wherein the pair of end region joining portions are embossed portions extending continuously or intermittently in the longitudinal direction.

In the absorbent article according to this aspect, since the pair of end region joining portions present in the pair of longitudinal end regions are formed of a predetermined embossing portion, the absorbent article in the pair of longitudinal end regions is the wearer It is easy to deform according to the body shape of Accordingly, as a result of being able to more effectively exhibit the above-described effects of the pair of loop portions, it is easy to suppress discomfort during wearing and improve wearability.

[Aspect 9]

the absorbent article is folded toward the skin-facing surface side at at least one individually wrapped fold line extending in the width direction, and individually wrapped with a packaging sheet;

The absorbent article in any one of Aspects 1-8 in which the said individual wrapping line is located rather than the said pair of junction parts at the edge part side of the said longitudinal direction of the said absorbent article.

In the absorbent article according to this aspect, since the individually wrapped fold and the pair of junctions are in a predetermined positional relationship, the individually wrapped fold and the pair of loops hardly overlap in the longitudinal direction, and the pair of loops, It is difficult to impair the easiness of standing on the skin-facing surface side. Accordingly, as a result of being able to more effectively exhibit the above-described effects of the pair of loop portions, it is easy to suppress discomfort during wearing and improve wearability.

[Mode 10]

The absorbent article according to any one of aspects 1 to 9, wherein, in each of the pair of loop portions, one portion on the inner surface is not joined to the other portion.

In the absorbent article according to the present aspect, since each of the pair of loop portions has a specific structure, the flexibility in the loop portion is less likely to be impaired, and the above-described effect of the pair of loop portions can be more effectively exhibited. As a result, it is easy to improve wearability by suppressing the uncomfortable feeling at the time of wearing.

[Mode 11]

The absorbent article according to any one of Aspects 1 to 10, wherein the topsheet is made of an air-through nonwoven fabric, and is disposed so that the outer surfaces of each of the pair of loop portions become an air surface.

Since the absorbent article according to this aspect is made of an air-through nonwoven fabric in which the topsheet is arranged in a specific shape, the outer surfaces of the pair of loops have a smooth feel, and even when the wearer's crotch part comes into contact with the loops, it can be applied to the skin. There is little stimulation, and it is easy to improve wearability by suppressing the discomfort at the time of wearing.

[Mode 12]

The absorbent article according to any one of aspects 1 to 11, wherein each of the pair of side sheets is made of a hydrophobic sheet.

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 the backflow of the liquid in the side region, to suppress the uncomfortable feeling during wearing, and to easily improve the wearability.

EMBODIMENT OF THE INVENTION Hereinafter, preferred embodiment of the absorbent article of this indication is described in detail, referring drawings. In the present specification, unless otherwise specified, "viewing an object (for example, absorbent article, absorbent body, etc.) placed on a horizontal surface in an unfolded state from the upper side in the thickness direction" is "planar" It's called 'Poetry'.

The various directions used in the present specification are as follows, unless otherwise specified.

In this specification, "longitudinal direction" refers to "the direction in which the length of a vertically long object in plan view is long", and "width direction" refers to "the direction in which the length of a vertically long object in plan view is short ( short direction)", and "thickness direction" refers to "a direction perpendicular to the object placed on the horizontal plane in the expanded state". These longitudinal directions, width directions, and thickness directions have a mutually orthogonal relationship, respectively.

In addition, in this specification, "in the width direction of a vertically long object (eg, absorbent article, absorbent body, etc.), it is relatively proximal with respect to the width direction central axis C _L extending in the longitudinal direction.側)" is referred to as "inside of the width direction", and "in the width direction of the vertically long object, relatively distal to the width direction central axis C _L " is referred to as "the width direction" outside of".

In addition, in this specification, "in the longitudinal direction of an absorbent article, when a wearer wears an absorbent article, the one side which becomes a relatively proximal side with respect to a wearer's abdomen" is called "the front side of an absorbent article", and "absorbent article" In the longitudinal direction of the article, when the wearer wears the absorbent article, the other side that is relatively distal to the wearer's abdomen (ie, relatively proximal to the wearer's back) is "the back side of the absorbent article" It is said

In this specification, unless otherwise specified, in the thickness direction of the absorbent article, "at the time of wearing the absorbent article, relatively proximal with respect to the wearer's skin-facing surface" is referred to as "skin-facing surface side", and " When the absorbent article is worn, the relatively distal side with respect to the wearer's skin-facing surface is referred to as "non-skin-facing surface side". In addition, in this specification, the "skin-facing surface side surface" and "non-skin-facing surface side surface" of various members (for example, topsheet, absorbent body, backsheet, etc.) constituting the absorbent article are simply referred to as " They are referred to as "skin-facing surface" and "non-skin-facing surface".

[Embodiment]

[Basic composition of absorbent articles]

1 is a plan view of a sanitary pad 1 according to an embodiment of the present disclosure as viewed from the topsheet side in the thickness direction in an expanded state. Fig. 2 is a perspective view of the sanitary pad 1 according to the embodiment of the present disclosure in a deployed state. 3 is a cross-sectional view of the sanitary pad 1 according to the embodiment of the present disclosure, taken along the longitudinal central axis C _L in the longitudinal direction. 4 is an enlarged cross-sectional view taken along the IV-IV section of FIG. 1 of the sanitary pad 1 according to the embodiment of the present disclosure. 5 : is an enlarged view of the area|region X in FIG. In Fig. 1, the upper side in the drawing corresponds to the front side of the absorbent article, and the lower side in the drawing corresponds to the rear side of the absorbent article.

As shown in Figs. 1 to 5, the sanitary pad 1 according to the present embodiment has a longitudinally elongated external shape having a longitudinal direction L and a width direction W in a plan view.

1 to 5, the sanitary pad 1 includes a liquid-permeable topsheet 3 positioned on the skin-facing surface side of the sanitary pad 1 in the thickness direction T; The hydrophobic side sheets 5 and 5' located on the non-skin-facing side of the topsheet 3, the absorber 7 located on the non-skin-facing side of the side sheets 5 and 5', and the absorber 7 ), the back sheet 9 positioned on the non-skin-facing surface side, and a plurality of clothing fixing adhesive portions arranged on the non-skin-facing surface of the back sheet 9 and extending continuously or intermittently in the width direction W. (11) is provided.

The sanitary pad 1 is configured to absorb and hold liquid excretion such as menstrual blood and urine discharged from the wearer in the absorbent body 7 while penetrating in the thickness direction T.

The sanitary pad 1 according to the present embodiment has a pair of virtual surfaces extending in the thickness direction T from the pair of side edges 13 and 13' of the absorbent body 7 extending in the longitudinal direction L. (VS, VS').

In addition, the sanitary pad 1 includes, in the width direction W, a body portion region R1 positioned inside the pair of virtual surfaces VS, VS', and a pair of virtual surfaces VS, It is partitioned into side regions R2 and R2' respectively located outside the VS'. In addition, in the longitudinal direction L, the sanitary pad 1 includes an excretory opening corresponding region R3 located inside the individually wrapped folds L1 and L2, which will be described later, and the individually wrapped folds L1 and L2. It is partitioned by longitudinal end regions R4 and R4' located on the outside. That is, in a plan view, the pair of longitudinal end regions R4 and R4' are adjacent to the excretory orifice corresponding region R3 in the longitudinal direction L.

The sanitary pad 1 according to the present embodiment is bonded to the individual packaging sheet 15 with an adhesive or the like via a release sheet (not shown). Further, the sanitary pad 1 is folded and folded toward the skin-facing surface side together with the individually wrapped sheet 15 and the release sheet in each of the individually wrapped cut lines L1 and L2 extended in the width direction W. , the individual packaging sheet 15 is fixedly attached to the fixed attachment portion 17 to form an individual packaging body.

In addition, although the number of individual wrapping folds in this embodiment is two, the number of individual wrapping folds of the absorbent article of this indication is not limited to this, Three or more may be sufficient.

Here, in this specification, the "excretion port corresponding area" refers to an area including a region facing or in contact with the wearer's excretion port when the absorbent article is worn, and the type and use of the absorbent article (specifically, urine It is an area suitably set for each type of absorbent article according to the type of liquid excrements such as feces and menstrual blood, the age or sex of the target wearer).

In the case where the absorbent article is a sanitary pad that is folded and individually wrapped in individual packaging folds, the "excretion orifice corresponding region" is in the longitudinal direction between the first and second individual packaging folds from the front of the sanitary pad. indicates the area located in

In addition, the excretion opening corresponding region is usually located at a position near the central or 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 a plan view, in the absorbent body portion of, at a position near the front side overlapping with the flap portion in the longitudinal direction, and when the absorbent article comprises an absorbent body portion having a constriction constricted inward in the width direction at a substantially central portion in the longitudinal direction, absorbent in a plan view It is a position corresponding to the constriction in the main body, and, when the absorbent article is composed of an elongated absorbent body, a substantially central portion extending in the width direction of the absorbent body in the longitudinal direction spanning the central axis. position.), it is set to have a length in the longitudinal direction of at least about 1/3 of the total length in the longitudinal direction of the absorbent article and a length in the width direction of at least about 1/3 of the total length in the width direction of the absorbent article, for example, In the case where the absorbent article is a night pad or the like, the length in the longitudinal direction of the excretion orifice corresponding region may be set to be less than 1/3 of the total length in the longitudinal direction of the absorbent article.

Further, in the sanitary pad 1 according to the present embodiment, each of the side regions R2 and R2' in the width direction W and the excretory port corresponding region R3 in the longitudinal direction L are formed. In a position near the front, it includes flaps 19 and 19' in the shape of substantially trapezoids extending outward in the width direction W.

Each of the pair of flaps 19 and 19' is, as shown in Figs. 1 to 5, a side sheet 5 positioned on the skin-facing side of the sanitary pad 1 in the thickness direction T. , 5'), the back sheet 9 positioned on the non-skin-facing surface side of the side sheets 5 and 5', and extending in the longitudinal direction L disposed on the non-skin-facing surface of the back sheet 9 Adhesive portions 21 and 21' for fixing clothing are provided.

In addition, when the sanitary pad 1 is worn, at least the entire area in the longitudinal direction L and the non-skin-facing surface of a portion corresponding to the body portion region R1 in the width direction W is provided. , after attaching to the skin-facing surface of the wearer's underwear via the adhesive portion 11 ') to be attached to the non-skin-facing surface of the undergarment, thereby being fixed to the undergarment. Accordingly, the non-skin-facing surfaces of the pair of flaps 19 and 19' are opposite to the wearer's skin when the sanitary pad 1 is worn.

Here, for fixing the sanitary pad 1 to the wearer's underwear, adhesion in the entire area in the longitudinal direction L and in a portion corresponding to the body portion region R1 in the width direction W The pressure-sensitive adhesive used in the portion 11 and the pressure-sensitive adhesive portions 21 and 21' in the respective flap portions 19 and 19' is particularly limited as long as the sanitary pad 1 can be fixed to the wearer's underwear, respectively. It does not do so, for example, arbitrary adhesives, such as a styrenic polymer, can be used. In addition, since a pair of said 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.

In addition, in the sanitary pad 1, the topsheet 3 and the absorbent body 7 are pressed in the thickness direction T in the excretory opening corresponding region R3, as will be described later, and at the same time, a pair of virtual surfaces A pair of crimping portions 23 and 23' extending along (VS, VS') are provided.

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

[Surface sheet]

In the sanitary pad 1 according to the present embodiment, the topsheet 3 has, as shown in Figs. 1, 3 and 4, a main body portion in the longitudinal direction L and in the width direction W. In the region including the region R1 and a part of the side regions R2 and R2', the liquid-permeable sheet member is disposed on the skin-facing surface side in the thickness direction T and can directly contact the wearer's skin-facing surface. is composed by Further, in the present embodiment, the topsheet 3 has a two-layer structure of the first sheet 3a positioned on the skin-facing surface side and the second sheet 3b positioned on the non-skin-facing surface side. .

The liquid-permeable sheet member constituting the topsheet 3 is not particularly limited as long as it has various properties (for example, liquid permeability, flexibility, feel, etc.) that can be used as a topsheet of an absorbent article; For example, a nonwoven fabric such as a spunlace nonwoven fabric or an air-through nonwoven fabric formed using hydrophilic fibers such as cellulose fibers and thermoplastic resin fibers subjected to hydrophilic treatment can be used. Among them, the first sheet 3a of the topsheet used for the absorbent article of the present disclosure is preferably made of an air-through nonwoven fabric from the viewpoint of the feel, as will be described later, and the topsheet 3 in this embodiment The first sheet 3a of the

On the other hand, the second sheet of the topsheet is a sheet member also called a second sheet, and the second sheet is preferably a liquid-permeable fibrous sheet whose constituent fibers are synthetic fibers. The second sheet is preferably an air-through nonwoven fabric in which intersections of crossed synthetic fibers are joined by thermal fusion of the air-through method. In addition to the air-through nonwoven fabric, a point bond nonwoven fabric, a spun bond nonwoven fabric, a spun lace nonwoven fabric, or the like may be used. When the second sheet is an air-through nonwoven fabric, the basis weight thereof is preferably in the range of 15 g/m ² to 40 g/m ² .

In addition, although the topsheet 3 in this embodiment was comprised by the two-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 essential. It is not a component, and in the absorbent article of the present disclosure, the topsheet 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 in which the absorbent article is provided as a different constituent member from the topsheet.

In the sanitary pad 1 according to the present embodiment, as shown in FIGS. 1 to 5 , the topsheet 3 extends over the entire width direction W of the main body region R1 and the sanitary pad It has a seedling ball structure parallel to the longitudinal direction L over the whole in the longitudinal direction L of (1). However, the topsheet 3 does not have a cradle structure in the part extending outward from each of a pair of virtual surfaces VS, VS'. More specifically, in the topsheet 3 , a plurality of ridges 27 and a plurality of grooves 29 extend in the longitudinal direction L, respectively, and at the same time as one of the plurality of ridges 27 , It is arrange|positioned so that the ridge part 27 and the groove part 29 of one of the some groove part 29 may be in line with the width direction W alternately. That is, the anchoring tool structure of the topsheet 3 has a plurality of groove portions 29 extending in the longitudinal direction L and arranged in parallel in the width direction W, and a plurality of groove portions 29 in the width direction W. Among them, it consists of a ridge part 27 extending between two adjacent groove parts 29.

Further, in the sanitary pad 1 according to the present embodiment, the plurality of groove portions 29 are embossed portions formed by heat embossing. In the heat embossing treatment, among the surfaces positioned on the skin-facing surface side of the topsheet 3, a large number of portions spaced apart from each other are compressed in the thickness direction T and heated. Thereby, in the topsheet 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, for example, by a method described in Japanese Patent Application Laid-Open No. 2009-279098, Japanese Patent Application Laid-Open No. 2010-1154749, and the like. The pitch of the embossed portions (that is, the spacing between the grooves) 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. Moreover, the depth of an embossing part is 0.1-5 mm, Preferably it is 0.1-1 mm.

In addition, in this specification, the measurement of the height or thickness of a target object (a ridge part, a loop part, etc.) is carried out as follows. The measurement is performed in a non-contact manner as follows 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). The absorbent article containing the object is placed on a horizontal measuring table, and the displacement from the measuring table is measured with a laser displacement meter for five other parts of the object, and the average value of the five measured values is the height or thickness of the object (mm) do it with

When the topsheet has the above-mentioned anchoring structure, the liquid discharged from the wearer tends to diffuse in the longitudinal direction of the absorbent article, but it is difficult to diffuse in the width direction compared to the longitudinal direction, and is less likely to leak laterally. Moreover, since the rigidity difference arises at the boundary of each ridge part and each groove part when a topsheet has the said anchoring tool structure, it is easy to induce|guide|derive the deformation|transformation of the width direction of the absorbent article according to the body shape of a wearer.

Moreover, it is preferable that the surface sheet in the absorbent article in this indication is provided with the uneven structure from a viewpoint from which the said effect is acquired, However, The said uneven|corrugated structure does not necessarily need to be provided.

The size of the topsheet is not particularly limited as long as it can cover the skin-facing surface of the absorbent body and form a pair of loops described later, and may be arbitrary depending on the size, gender, use, etc. of the person to whom the absorbent article is to be worn. dimensional shape 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 adopted, but liquid permeability, flexibility, etc. A basis weight within the range of 20 g/m ² to 50 g/m ² is preferable in terms of In addition, in this specification, a basis weight can be measured according to 5.2 of JIS L 1906.

[Absorber]

Next, the absorbent body which can be used for the absorbent article of this indication is demonstrated. In the sanitary pad 1 according to the present embodiment, as shown in Figs. 1, 3, 4, and 5, the absorbent body 7 comprises a top sheet 3 and a back sheet ( 9) and is an absorbent member having a function of absorbing and holding liquid excrement of the wearer that has passed through the topsheet 3 . As shown in Fig. 1, the absorber 7 is longitudinal in plan view, in which the front and rear edges in the longitudinal direction L protrude in an arc shape to the front side and the rear side, respectively. In the longitudinal direction L of the sanitary pad 1, it is arranged so as to extend from the excretory opening corresponding region R3 to the longitudinal end regions R4 and R4'.

The absorbent article of this indication WHEREIN: An absorber in particular is not restrict|limited, In this field|area, any well-known absorber can be used. As such an absorbent body, the absorbent material containing absorbent fibers, such as pulp, and/or an absorbent polymer (SAP) may be included, for example. In addition, the basis weight of the absorber is, for example, 20 to 1000 g/m ² , preferably 50 to 800 g/m ² . Moreover, when the absorbent body contains a water absorbent polymer, the basis weight of the water absorbent polymer is, for example, 50 to 500 g/m ² as a whole of the absorbent body, preferably 100 to 400 g/m ² .

In addition, the absorbent 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 it does not impair the effects of the present disclosure. For example, a thickness within the range of 0.1 mm to 10 mm can be adopted, but the absorbency, flexibility, etc. A thickness within the range of 0.3 mm to 3 mm is preferable at the point.

In the present disclosure, the absorbent body is not limited to the one of the above aspect, and the absorbent body may have any external shape such as a rectangle, an oval shape, or an hourglass shape, for example, and the length of the absorbent article It may be arranged biasedly toward the front or rear of the direction. However, when the absorbent core made of an absorbent material containing absorbent fibers such as pulp and/or a super absorbent polymer has an hourglass shape, that is, a shape constricted in the width direction in the excretory corresponding region in the longitudinal direction. Even when the absorbent body has a rectangular or elliptical outer shape, the absorber as a whole may have a rectangular or elliptical outer shape from the viewpoint of productivity of the absorber (more specifically, efficiency in the step of cutting the liquid-permeable covering sheet).

Moreover, in the modified example of the sanitary pad 1 which concerns on this embodiment, the absorber has an hourglass-shaped external shape. In this modified example, the absorber has a pair of constrictions constricted in the width direction W in at least a part of the excretory port correspondence region R3 in the longitudinal direction L. More specifically, the pair of constricted portions have, in plan view, both side edges extending in the longitudinal direction L of the absorber to be narrower than the other portions in the width direction W in the excretory opening corresponding region. is formed

In this modified example, since the absorbent body has the above constricted portions, the chance of contact between the absorbent body and the wearer's crotch portion in the excretory port correspondence region is easily suppressed, and the absorber has many opportunities for contact with the wearer's crotch portion. Since it is easy to contact via a part (that is, a pair of loop part mentioned later), and the hardness of an absorbent body is hard to transmit to a wearer's crotch part, it is easy to suppress the uncomfortable feeling at the time of wearing.

[Side sheet]

The side sheets 5 and 5' of the sanitary pad 1 according to the present embodiment are in the longitudinal direction L in the main body region R1, as shown in FIGS. 1, 4 and 5 . Liquids, such as menstrual blood and urine, discharged from the wearer by extending from the region near the extended side edges and covering the entire length in the longitudinal direction L to each of the side regions R2 and R2' in the width direction W It is constituted by a hydrophobic sheet member that prevents leakage of excrement. In addition, the pair of side sheets 5 and 5' is positioned between the top sheet 3 and the absorber 7 in the thickness direction T on the pair of virtual surfaces VS and VS'. do. In the present embodiment, one side edge portion extending in the longitudinal direction L of the side sheets 5 and 5' is a pair of side edges 13 and 13 extending in the longitudinal direction L of the absorber 7 . ') so as to overlap the skin-facing surface side, while the other side edge portion is joined to the skin-facing surface of the back sheet 9 in the flap portions 19 and 19'.

In the sanitary pad 1, since the pair of side sheets 5 and 5' are made of a hydrophobic material, it is easy to suppress the backflow of the liquid in the side regions R2 and R2', and a feeling of discomfort during wearing It is easy to suppress and improve the wearability.

In addition, the side sheet in the absorbent article of the present disclosure is not limited to the above aspect, as long as it has various characteristics (hydrophobicity, flexibility, etc.) that can be used as a side sheet of an absorbent article, a nonwoven fabric, a polyethylene having air permeability, Well-known side sheet members, such as resin films, such as polypropylene, and a sheet|seat made from a thermoplastic resin, can be used.

[loop part]

In the sanitary pad 1 according to the present embodiment, as shown in FIGS. 1, 2, 4, and 5, in the excretory opening corresponding region R3 in the longitudinal direction L, the topsheet 3 includes: Using the pair of virtual surfaces VS and VS' as a pair of base ends, the pair of outer ends 31 and 31 existing outside the pair of virtual surfaces VS and VS' in the width direction W ') and on the inner side in the width direction W of the pair of outer ends 31, 31', a pair of side sheets ( A pair of loop portions 35 and 35' joined to 5 and 5' are provided.

In the sanitary pad 1 according to the present embodiment, the pair of loop portions 35 and 35' have a pair of virtual surfaces VS and VS' of the topsheet 3 at their base ends ( P1, P1', and the joint portions 33 and 33' as the ends P2, P2', the top sheet 3 is a portion formed by folding back into a loop shape. The outer end portions 31, 31', at which the topsheet 3 is folded back, are located at the outermost sides in the width direction W of the pair of loop portions 35 and 35', and are located in the longitudinal direction L. In each of the pair of side regions R2 and R2' in the width direction W, the excretory opening corresponding region R3 is also extended in the longitudinal direction L.

Moreover, as shown in FIG. 5, the junction parts 33 and 33' are inside and the said virtual surface VS, VS' of the width direction W of virtual surface VS, VS' of main-body part area|region R1. ) in the vicinity of the width direction W WHEREIN: It is provided between the top sheet 3 and each of the side sheets 5 and 5'. The absorbent article of this indication WHEREIN: The distance in the width direction of a junction part and the side edge extended in the longitudinal direction of an absorber becomes like this. Preferably it is 2-25 mm, More preferably, it is 5-15 mm. As will be described below, this is in view of securing cushioning properties of the pair of loops.

Further, 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 the pair of loop portions and the outer end is preferably 5 to 35 mm, more preferably is 8 to 30 mm. As will be described below, this is in view of securing cushioning properties of the pair of loops.

In the absorbent article of the present disclosure, the length in the longitudinal direction of the pair of loops is preferably extended over at least a part of the side region in the width direction and the entire excretion port corresponding region in the longitudinal direction. . As described above, at the outer ends of the pair of loops where the topsheet has many opportunities for contact with the wearer's crotch, the pair of loops has the topsheet protruding outward in the width direction at least in the excretory corresponding region. As described below, the absorbent article of the present disclosure has suitable cushioning properties and is difficult to give stimulation to the crotch portion of the wearer.

Moreover, the maximum height of a pair of loop parts in the absorbent article of this indication is in a natural state, Preferably it is 5-40 mm, More preferably, it is 10-35 mm. As will be described below, this is in view of securing cushioning properties of the pair of loops.

Here, in the present specification, the maximum height of an object (a roof portion, an excretory corresponding area, etc.) refers to the maximum value of the height of the object from the horizontal reference plane on which the absorbent article is mounted, and can be measured with the laser displacement meter. In addition, the natural state of an absorbent article is the state in which the said absorbent article was developed. WHEREIN: The state in which external forces other than gravity of the said absorbent article are not acting.

In addition, in the sanitary pad 1, the maximum height of the pair of loop portions 35 and 35' in the natural state is the maximum height of the excretory opening corresponding region R3 (that is, the maximum height of the sanitary pad 1). It is higher than the height of the highest position in the ridges 27 in the concave-convex structure of the topsheet 3 from the horizontal reference plane on which it is placed. With this configuration, since each of the pair of loops 35 and 35' is easily deformed according to the shape of the wearer's crotch, it is difficult to feel the hardness or stimulation of the absorbent body received by the wearer's crotch, so that when wearing It is easy to suppress discomfort.

Further, 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 ensuring cushioning properties in the excretory corresponding region. ² , more preferably 3.0 to 6.0 N·m/m ² , and still more preferably 3.5 to 5.5 N·m/m ² WC (compressive energy).

The WC (compression energy) means that the larger the value, the easier it is to be compressed, and a sample of the absorbent article is subjected to a compression characteristic evaluation test by an automated compression tester "KES FB-3A" (manufactured by Katotech Co., Ltd.). can do. At this time, the compression element of the said tester shall measure the center according to the width direction center part of a loop part. In addition, the measurement conditions of the said compression characteristic evaluation test are made as follows.

SENS: 2

Speed: 0.02mm/s

Stroke: 5mm/10V

Compressor Area: 2cm ²

Introductory Interval: 0.1 sec

Upper load limit: 50 gf/cm ²

Number of repetitions: 1

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

Here, in the sanitary pad 1 according to the present embodiment, the effect of providing the pair of loop portions 35 and 35' will be described. 6 is a schematic diagram of a state in which the sanitary pad 1 according to the embodiment of the present disclosure is worn.

As shown in FIG. 6 , when the wearer wears the sanitary pad 1 by attaching the sanitary pad 1 to the shorts S, the wearer's crotch part presses the sanitary pad 1 in the width direction.壓) do. Here, since the sanitary pad 1 includes the pair of loop portions 35 and 35' as described above, in the width direction W, the pair of loop portions 35, 35' side protrudes outward, and a pair of loop parts 35, 35' is comprised so that a pair of side edges 13, 13' of the absorber 7 may be covered. Therefore, even if the wearer wears the sanitary pad 1 and the sanitary pad 1 to the absorbent body 7 deform according to the shape of the wearer's crotch part, the pair of loops 35 and 35' are formed by the absorbent body ( It is easy to deform|transform by following 7), and it is easy to maintain adhesiveness with a wearer. Therefore, the sanitary pad 1 according to the present embodiment easily suppresses lateral leakage.

Further, when the wearer's crotch part presses the sanitary pad 1 in the width direction, the pair of loop parts 35 and 35' make it difficult to feel the hardness of the absorbent body 7 in the wearer's crotch part, so to speak, a cushioning material. function as That is, when the wearer's crotch part presses the sanitary pad 1 in the width direction, before the absorbent body 7 comes into contact with the wearer's crotch part, the wearer's crotch part has the cushioning properties of the pair of loops 35 and 35'. (i.e., softness or repulsive force) is easy to feel. Then, when the wearer's crotch part further presses the sanitary pad 1 in the width direction, until the absorbent body 7 comes into contact with the wearer's crotch part, the wearer's crotch part is a pair of loop parts 35 and 35' It is easy to feel the cushioning characteristics of 's gradually stronger. As a result, the wearer's crotch portion presses the sanitary pad 1 further in the width direction, and even if the absorbent body 7 comes into contact with the wearer's crotch portion, the wearer's crotch until it comes into contact with the absorber 7 Since the part feels the cushioning properties of the pair of loops 35 and 35', compared to the case where the hardness of the absorbent material is transmitted to the wearer's crotch without feeling the cushioning property of the pair of loops, the sanitary pad 1 is It can make it difficult to feel the hardness of an absorbent body in a wearer's crotch part. Therefore, with the said structure, the hardness of the absorbent body 7 becomes difficult to transmit to a wearer's crotch part. Furthermore, in the sanitary pad 1 according to the present embodiment, the pair of loop portions 35 and 35' are disposed at a position on the skin-facing side rather than the absorbent body 7, so that the wearer's crotch portion is the sanitary pad. When (1) is pressed in the width direction, the pair of loop portions 35 and 35' protruding outward from the absorber 7 are flexibly crushed in the width direction W according to the shape of the wearer's crotch portion. Since it is easy to deform and the said deformation|transformation is hard to be inhibited by the absorber 7, the cushioning property of the said pair of loop parts 35 and 35' is easy to feel by the crotch part of a wearer.

From the above, the sanitary pad 1 according to the present embodiment suppresses a sense of incongruity when worn and easily improves wearability.

As shown in Fig. 5, in the pair of loop portions 35 and 35' of the sanitary pad 1 according to the present embodiment, the pair of base ends P1 and P1' is the pair of terminal ends ( P2, P2') and not directly or indirectly conjugated. And in the thickness direction T, a pair of base ends P1, P1' and a pair of terminal ends P2, P2' are spaced apart through air.

As such, in the pair of loop portions 35 and 35', the pair of base ends P1, P1' and the pair of terminal ends P2, P2' are not joined, or the pair of base ends ( Since P1 and P1' are not joined to the pair of terminal ends P2 and P2' via another sheet member, the sanitary pad 1 is formed with a pair of base ends P1, P1' and a pair of ends. Since it does not have a joint with the ends P2 and P2', it is difficult to generate irritation or a feeling of pressure in the crotch portion of the wearer. Therefore, the sanitary pad 1 is easy to improve wearability by suppressing discomfort during wearing.

In addition, in the sanitary pad 1 according to the present embodiment, each of the pair of loop portions 35 and 35' does not include an elastic member. With such a configuration, the sanitary pad 1 can easily reduce irritation and pressure generated in the crotch portion of the wearer due to the contractile force of the elastic material.

In addition, 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 on each of the pair of loop portions and disposed inside each of the pair of loop portions It means that the elastic member is not included.

In addition, in the sanitary pad 1 according to the present embodiment, as shown in Figs. 4 and 5, each of the pair of loop portions 35 and 35' is the base end P1, P1'. Between the pair of virtual surfaces (VS, VS') and the joint portions (33, 33') serving as the terminations (P2, P2'), the upper loops (37, 37') positioned on the skin-facing surface; , has lower loop portions 39 and 39' located on the non-skin facing surface.

In addition, in the sanitary pad 1 according to the present embodiment, as shown in Figs. 2, 4, and 5, each of the pair of loop portions 35 and 35' has a pair of virtual surfaces VS, From VS' to the outer ends 31, 31', the outer ends 31 and 31' protrude toward the skin-facing surface side so that the outer ends 31, 31' are highest. And the lower loop parts 39 and 39' located on the non-skin-facing surface in each of the pair of loop parts 35 and 35' are spaced apart from the side sheets 5 and 5'.

Since the pair of loop portions 35 and 35' have such a shape, each of the pair of loop portions 35 and 35' is easy to deform according to the shape of the wearer's crotch, so that the wearer's crotch Since it is difficult to feel the hardness of the absorbent body 7, the sanitary pad 1 is easy to improve wearability by suppressing a feeling of incongruity during wearing.

Further, in the sanitary pad 1 according to the present embodiment, each of the pair of loop portions 35 and 35' has an outer surface ES (that is, the skin-facing surface of the upper loop portions 37 and 37') and The non-skin-facing surface of the lower loop portions 39, 39' as the surface exposed to the outside, and the inner surface IS (that is, the non-skin-facing surface of the upper loop portions 37 and 37') and the lower loop portion 39 , 39') as the skin-facing surface, and has a surface that is not exposed to the outside). In each of the pair of loop portions 35 and 35', one part of the inner surface IS is not joined to the other, that is, the inner surface IS is not joined to each other, and the inner space thereof is not joined. contains a certain amount of air. Therefore, the upper loop portions 37, 37' and the lower loop portions 39, 39' both have a soft feel, and the flexibility is not easily damaged, so that the wearer moves the sanitary pad 1 from the crotch in the width direction ( Even if it presses with W), the cushioning function which makes it hard to feel the hardness of the absorbent body 7 can be ensured more reliably. In addition, since the inner surface ISs are not joined together, the flexibility in the pair of loop portions 35 and 35' is less likely to be impaired, and the wearer's crotch portion makes it difficult to feel the hardness or irritation of the absorbent body 7, It is easy to suppress the discomfort when wearing.

In addition, in the sanitary pad 1 according to the present embodiment, as described above, the topsheet 3 is formed of an air-through nonwoven fabric.

Here, the air-through nonwoven fabric or the spunlace nonwoven fabric is produced in a process of forming a web by dropping and accumulating fibers burned in an air stream onto a net, and with respect to a web on a net, high-temperature air or It is a nonwoven fabric produced using a net, that is, a nonwoven fabric that is subjected to a process of web bonding by passing a high-pressure water stream through it. It has a net surface (which has been arranged), and a surface (air surface) opposite to the net surface that is not in contact with the net and directly contacted with hot air or high-pressure water flow. The nonwoven fabric having such a net side and an air side has a lower fiber density on the air side than the net side, and has a soft feel.

And in this embodiment, the topsheet 3 is arrange|positioned so that each outer surface ES of a pair of loop parts 35 and 35' may become an air surface.

In the sanitary pad 1 according to the present embodiment, since the topsheet 3 is made of an air-through nonwoven fabric arranged in the above-mentioned specific form, the outer surfaces ES of the pair of loops 35 and 35' It has a smooth feel, and even when the wearer's crotch part abuts against the pair of loop parts 35 and 35', there is little irritation to the skin, and it is easy to suppress the uncomfortable feeling at the time of wearing.

In addition, in the sanitary pad 1 according to the present embodiment, as shown in FIG. 5 , the ends 41 and 41' of the second sheet (second sheet) 3b in the width direction W are , while overlapping with each of the pair of loop portions 35 and 35' in the thickness direction T, the ends 41 and 41 of the second sheet (second sheet) 3b in the width direction W ') is present in each of the pair of side regions R2 and R2', and is not joined to the inner surface IS of the pair of loop portions 35 and 35'.

In the sanitary pad 1 according to the present embodiment, when 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', the first Due to the presence of the second sheet (second sheet) 3b, the pair of loop portions 35 and 35' are hardly crushed, and the flexibility thereof is hardly impaired. As a result, it makes it difficult to feel the hardness and irritation|stimulation of the absorbent body which a wearer's crotch part receives, and it is easy to suppress the uncomfortable feeling at the time of wearing.

As shown in Fig. 5, in the sanitary pad 1 according to the present embodiment, each of the pair of joint portions 33 and 33' has a width direction ( W) is present on the inside.

In the sanitary pad (1), a pair of loop portions (35, 35') comprises a top sheet (3) folded back at a pair of outer ends (31, 31') and a pair of side sheets (5, 5') is joined in the width direction W of the pair of virtual surfaces VS, VS', so that the wearer wears the sanitary pad 1, and the sanitary pad 1 to Even if the absorbent body 7 deforms along the shape of the wearer's crotch, the pair of loops 35 and 35' more easily follow the deformation of the absorbent body 7 and easily maintain adhesion to the wearer, It is easy to suppress lateral leakage. In addition, in the pair of roof portions 35 and 35' having such a configuration, the top sheet 3 and the pair of side sheets 5 and 5' are a pair of virtual surfaces VS and VS'. Compared with the case where it is joined in the outer side of the width direction W, the outer periphery length of the width direction W becomes long, and the space for standing up to the skin-facing surface side increases.

7 is a schematic diagram showing the positional relationship between the bonding portions 33 and 33' and the end region bonding portion in the sanitary pad 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 topsheet 3 and the pair of side sheets 5 and 5' are connected to the pair of joint portions 33 and 33'. ), on the other hand, in the pair of longitudinal end regions R4 and R4' in the longitudinal direction L, the top sheet 3 and the pair of side sheets 5 and 5' They are joined by end region joining portions 43 and 43'.

In addition, in the present embodiment, the pair of joint portions 33 and 33' are located in the excretory port corresponding region R3 in the longitudinal direction L (that is, between the individually wrapped cut lines L1 and L2), respectively. Although continuously extended, the pair of junctions in the present disclosure may be continuously or intermittently arranged as long as they are within the excretory opening corresponding region in the longitudinal direction. On the other hand, although the pair of end region junction parts 43 and 43' in this embodiment are continuously extended in longitudinal direction end region R4, R4' in the longitudinal direction L, respectively, this indication The pair of end region junctions in , as long as they are in the longitudinal end region in the longitudinal direction, may be continuously or intermittently arranged.

And as shown in FIG. 7, the pair of edge part area|region junction part 43 and 43' exists outside in the width direction W rather than the pair of junction part 33, 33'. As described above, in the sanitary pad 1, since the pair of joint portions 33 and 33' and the pair of end region joint portions 43 and 43' are in a predetermined positional relationship, the pair of loop portions 35 , 35') easily secures a distance in the width direction W between the pair of joint portions 33 and 33' and the pair of outer ends 31 and 31', and tends to stand up on the skin-facing surface side. Further, the topsheet 3 and the pair of side sheets 5 and 5' in the pair of longitudinal end regions R4 and R4' are formed in the width direction by the end region joining portions 43 and 43'. Since it is easy to join on the outer side in this case, it is difficult for both sheets in the pair of longitudinal end regions R4 and R4' to be turned toward the center side in the width direction, so that the pair of loops 35 and 35' , it is easy to suppress that it interlock|cooperates with both sheets in a pair of longitudinal direction edge part area|region R4, R4', and it turns over to the width direction center side.

Moreover, in the absorbent article in this indication, although the position in the width direction of the edge part area junction part may be either the outer side or the inner side in relation to a virtual surface, from a viewpoint of preventing the bending as mentioned above, it is virtual It is preferable that it is located outside in the width direction rather than a surface.

Moreover, it is preferable that a pair of edge part region junction part in this indication is an embossing part extended continuously or intermittently in a longitudinal direction. Moreover, such an embossing part can be formed by heat embossing process etc. similarly to the embossing part which forms the groove part in a topsheet.

When the pair of end region joining portions are embossed, the absorbent article in the pair of longitudinal end regions is easily deformed along the wearer's body shape.

In addition, in the sanitary pad 1 according to the present embodiment, as shown in FIG. 7 , the individually wrapped cut lines L1 and L2 are greater than the pair of joint portions 33 and 33' for the sanitary pad 1 . ) is located on the end side of the longitudinal direction L. With such a configuration, it is difficult for the individually wrapped fold lines L1 and L2 and the pair of loop portions 35 and 35' to overlap in the longitudinal direction L, so that the pair of loop portions 35 and 35' It is difficult to impair the easiness of standing on the skin-facing surface side.

[Compression part]

Although it is not an essential component in the absorbent article of the present disclosure, as shown in FIGS. 1, 2 and 4 , the sanitary pad 1 according to the present embodiment is at least within the excretory opening corresponding region R3 and A pair of crimping portions 23 extending in the longitudinal direction L by crimping the topsheet 3 to the absorber 7 inside the pair of bonding portions 33 and 33' in the width direction W. , 23').

With such a configuration, the absorbent body 7 positioned outside the pair of crimping portions 23 and 23' in the width direction W tends to protrude toward the skin-facing surface side, and the absorber 7 in the raised portion ), the pair of loop portions 35 and 35' located on the skin-facing surface side are also more likely to stand on the skin-facing surface side. Accordingly, since the pair of loop portions 35 and 35' are in close contact with the wearer's crotch portion to easily absorb body fluid, it is easy to prevent lateral leakage. Further, as described above, in the sanitary pad 1, since each of the pair of loop portions does not include an elastic member, even if the pair of loop portions 35 and 35' stand up on the skin-facing surface side, the wearer's crotch It is easy to reduce irritation and pressure generated in the part.

Further, in the absorbent article of the present disclosure, the pair of crimping portions are not limited to those of the above aspect, and may be provided only in a part of the excretion port corresponding region of the absorbent article in the longitudinal direction. Moreover, a pair of crimping|compression-bonding parts may be provided also in the whole or a part of the longitudinal end area|region in the longitudinal direction. Even in this 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 crimping portions as a starting point tends to protrude toward the skin-facing surface side, so that the pair of loop portions are also skin. It becomes easy to stand up to the opposite surface side. As a result, the said absorbent article makes it difficult to feel the hardness and irritation|stimulation of the absorbent body which a wearer's crotch part receives, and it is easy to suppress the uncomfortable feeling at the time of wearing.

As shown in FIG. 4 , the sanitary pad 1 according to the present embodiment has a body portion region R1 in the excretory port corresponding region R3 in the longitudinal direction L and in the width direction W. Inside, the crimping part inner region R5 located inside the pair of crimping parts 23 and 23' in the width direction W, and in the width direction W than the pair of crimping parts 23 and 23'. ) is divided into a pair of outer regions (R6, R6') of the compression unit located on the outside.

Moreover, in this embodiment, the absorbent body 7 has an absorbent polymer (not shown), and, as shown in FIG. 4, in the sanitary pad 1, in the area|region R6, R6' outside the crimping|compression-bonding part. Silver is a high basis weight region where the basis weight of the absorbent polymer of the absorber 7 is higher than that of the crimping portion inner region R5.

In the sanitary pad 1, in the pair of outer regions R6 and R6' of the compression portion (that is, the high basis weight region of the absorbent body 7), the basis weight of the absorbent polymer is high, and a large amount of the absorbent polymer is present. In such a high basis weight region, since it has a larger absorption capacity compared with other regions, the sanitary pad 1 tends to suppress lateral leakage. In addition, in the sanitary pad 1, even if the high basis weight region R6 is provided at the above position, the wearer can wear the absorbent body 7 and further It is difficult to feel the hardness of the absorbent polymer. As a result, the sanitary pad 1 is easy to improve wearability by suppressing a sense of incongruity during wearing.

In addition, the absorbent body in the present disclosure can be produced by appropriately adjusting the distribution of the absorbent polymer so that the basis weight of the absorbent polymer is higher in the portion corresponding to the region outside the crimping unit than in the portion corresponding to the region inside the crimping unit. Further, from the viewpoint of effectively suppressing lateral leakage of the absorbent article, for example, the basis weight of the absorbent polymer in the region inside the crimping portion is 0 to 80% of the basis weight of the absorbent polymer in each of the regions outside the crimping portion of the pair. It is in the range of, Preferably it is in the range of 0-50%.

[Backsheet]

In the sanitary pad 1 according to the present embodiment, the back sheet 9 is positioned over the entire area of the sanitary pad 1 in plan view, as shown in FIGS. 1, 3, 4, and 5 . It is arranged on the non-skin-facing surface side in the thickness direction T, and is constituted by a liquid-impermeable sheet member that prevents leakage of liquid excretions such as menstrual blood and urine discharged from the wearer. Such a liquid-impermeable sheet member, as long as it has various properties (liquid impermeability, air permeability, flexibility, etc.) that can be used as a back sheet of an absorbent article, a resin film such as polyethylene or polypropylene having air permeability, a sheet made of a thermoplastic resin, etc. , a known liquid-impermeable sheet member can be used.

In addition, the absorbent article of this indication is not limited to the said embodiment or an exemplary description, Within the range which does not deviate from the objective of this indication, a change, a combination, a change, etc. are possible as appropriate. In addition, the present disclosure can be applied to various absorbent articles, such as panty liners and (trans)incontinence pads, in addition to the sanitary pad of the above embodiment. In addition, in this specification, ordinal numbers, such as "first" and "second", are for distinguishing the matter to which the said ordinal number was attached, and do not mean the order, priority, importance, etc. of each matter.

1: sanitary pad
3: surface sheet
5, 5' : side seat
7: absorber
9: back sheet
11: adhesive part
13, 13': a pair of side edges of the absorber 7
15: Individually wrapped sheet
23, 23': crimping part
31, 31': outer end
33, 33': junction
35, 35': loop part
43, 43': end region joint
VS, VS' : virtual plane
L1, L2 : Individually wrapped cut line
P1, P1' : air mass
P2, P2' : Termination
R3: Excretory junction area
R4, R4' : longitudinal end area
R5: area inside the crimping part
R6: Outside area of compression part (high basis weight area)

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 comprising:
The absorbent article includes a liquid-permeable top sheet, a pair of side sheets, an absorbent body, a liquid-impervious back sheet, and an adhesive portion for fixing clothing;
The absorbent article has a pair of virtual surfaces extending in the thickness direction from a pair of side edges of the absorbent body;
The pair of side sheets is positioned between the top sheet and the absorber in the thickness direction on the pair of virtual surfaces,
In the absorbent article, in the excretion opening corresponding region corresponding to the excretory opening in the longitudinal direction, the topsheet has the pair of imaginary surfaces as a pair of base ends, and in the width direction of the pair of imaginary surfaces rather than the pair of imaginary surfaces. a pair of side sheets joined to the pair of side sheets via a pair of outer end portions existing outside, and a pair of joint portions as a pair of terminal ends in the width direction of the pair of outer end portions An absorbent article having a pair of loop portions. The method of claim 1,
The absorptive article in which each of the said pair of junction parts exists inside the said width direction rather than the said pair of virtual surfaces. 3. The method according to claim 1 or 2,
The said pair of loop parts WHEREIN: The said pair of base ends are not joined with the said pair of terminal ends directly or indirectly, The absorbent article. 3. The method of claim 1 or 2,
The absorbent article, wherein each of the pair of loop portions does not include an elastic member. 3. The method of claim 1 or 2,
The absorbent article further includes a pair of crimping portions extending in the longitudinal direction by crimping from the topsheet to the absorbent body at least in the excretion opening corresponding region and inside the pair of joint portions in the width direction. An absorbent article provided. 6. The method of claim 5,
The absorber has an absorbent polymer,
The absorbent article has a high basis weight region outside the pair of crimping portions in the width direction, wherein the basis weight of the absorbent polymer of the absorbent body is higher than that of the pair of crimping portions inside in the width direction, absorbent article. 3. The method according to claim 1 or 2,
The absorbent article has a pair of longitudinal end regions adjacent to the excretion opening corresponding region in the longitudinal direction in a plan view;
the absorbent article has, in the pair of longitudinal end regions, a pair of end region joining portions for joining the top sheet and the pair of side sheets together;
The absorptive article, wherein the pair of end region joint portions exist outside the pair of joint portions in the width direction. 8. The method of claim 7,
The said pair of edge-region joining parts is an embossing part extended continuously or intermittently in the said longitudinal direction, The absorbent article. 3. The method of claim 1 or 2,
the absorbent article is folded toward the skin-facing surface side at at least one individually wrapped fold line extending in the width direction, and individually wrapped with a packaging sheet;
The absorbent article in which the said individually wrapped cut line is located rather than the said pair of junction parts at the edge part side of the said longitudinal direction of the said absorbent article. 3. The method according to claim 1 or 2,
In each of the pair of loop portions, one portion on the inner surface is not joined to the other portion, the absorbent article. 3. The method of claim 1 or 2,
and the topsheet is made of an air-through nonwoven fabric, and is arranged so that an outer surface of each of the pair of loop portions becomes an air surface. 3. The method according to claim 1 or 2,
Each of said pair of side sheets consists of a hydrophobic sheet|seat, The absorbent article.

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