JP3244212U - absorbent articles - Google Patents

Abstract

The present invention relates to an absorbent article that has a moderate cooling effect without excessive skin stimulation caused by a cooling agent. An absorbent article (1) includes an absorbent core (4) and a topsheet (2). The absorbent body has a skin side surface 4a and a non-skin side surface 4b. The top sheet is placed on the skin side. The absorbent article has a front-rear direction, a width direction, and a thickness direction that are orthogonal to each other. The top sheet has a plurality of convex portions 15 having different heights in the thickness direction. The absorbent article has a region containing the cooling agent 11 in the absorber or in a member located closer to the top sheet than the absorber. [Selection diagram] Figure 2

Description

The present invention relates to absorbent articles such as sanitary napkins.

BACKGROUND ART Absorbent articles such as sanitary napkins may become stuffy or sticky when there is a large amount of excreted fluid or when used for a long period of time, making the wearer feel uncomfortable. On the other hand, an absorbent article including an absorbent layer containing a cooling agent has been proposed (Patent Document 1).

International Publication No. 2019/092807

Absorbent articles using such cooling agents are desired to provide a moderate cooling sensation to the skin without excessive stimulation.

An object of the present invention is to provide an absorbent article that has a moderate cooling effect without excessive stimulation of the skin by a cooling agent.

An absorbent article according to one embodiment of the present invention includes an absorber and a topsheet.
The absorbent body has a skin side and a non-skin side.
The top sheet is placed on the skin side.
The absorbent article has a front-rear direction, a width direction, and a thickness direction that are orthogonal to each other.
The top sheet has a plurality of convex portions having different heights in the thickness direction.
The absorbent article has a region containing a cooling agent in the absorber or a member located closer to the top sheet than the absorber.

As described above, the absorbent article of the present invention can provide the wearer with a moderate cooling sensation without excessive irritation to the skin.

FIG. 1 is a plan view showing an absorbent article according to an embodiment of the present invention. 2 is a sectional view taken along line II-II in FIG. 1. FIG. It is a partial plan view which shows the emboss pattern of the surface embossed part formed in the top sheet of the said absorbent article. FIG. 3 is a partial plan view showing an embossed pattern of the surface embossed portions formed on the top sheet, (A) is a diagram illustrating the size relationship of each convex portion in a plan view, and (B) is a diagram illustrating the size relationship of each convex portion. It is a figure explaining arrangement of. It is a top view for demonstrating the position of the slit and cooling sensation agent formed in the said absorbent article. (A) is a schematic diagram showing the relationship between the vertical length of the slits and the vertical spacing between the slits when there is one row of slits, and (B) is a schematic diagram showing the vertical length of the slits when there are multiple rows of slits. FIG. 3 is a schematic diagram showing the relationship between the directional length and the vertical distance between the slits, and FIG.

Embodiments of the present invention will be described below with reference to the drawings.
[Overall composition of napkin]
The absorbent article 1 of the present invention includes a main body M and a pair of wing parts W extending from both sides of the main body M in the longitudinal direction X, as shown in FIG. The absorbent article 1 is configured as a sanitary napkin, and is hereinafter referred to as the napkin 1.
The napkin 1 has a vertical direction X that corresponds to the front-back direction of the wearer and a horizontal direction Y that corresponds to the left-right direction of the wearer and is orthogonal to the vertical direction X. The lateral direction Y corresponds to the width direction of the napkin 1. Furthermore, the napkin 1 has a thickness direction Z that is orthogonal to both the longitudinal direction X and the lateral direction Y. In this specification, with respect to the thickness direction Z, the side closer to the wearer's skin when worn is sometimes referred to as the upper or skin side, and the side closer to clothing is sometimes referred to as the lower or non-skin side.

The main body M extends along the longitudinal direction X and is fixed to the inner surface of the wearer's clothing when worn. The main body M has an absorbent body 4 and has a function of absorbing liquid substances (hereinafter also referred to as "liquid") such as menstrual blood of the wearer.

The main body M is divided along the longitudinal direction X into a front part (vertical front part) M1, an intermediate part (vertical middle part) M2, and a rear part (vertical rear part) M3.
The intermediate portion M2 is a region in the vertical direction X that faces the wearer's excretory region when worn. In FIG. 1, the intermediate portion M2 is a region between the front and rear base end portions of the wing portion W in the main body M.
The front part M1 is a region disposed in front of the intermediate part M2 (on the ventral side of the wearer), and is configured to face the front of the wearer's excretory region when worn.
The rear part M3 is a region located behind the intermediate part M2 (on the back side of the wearer), and is configured to face the rear of the wearer's excretory part when worn.
Note that when worn here, it means a state in which the normal proper wearing position (the expected wearing position of napkin 1) is maintained, and does not include cases where napkin 1 is shifted from the wearing position. .
Note that the napkin 1 may not have the wing portion W, or may be configured to be long in the vertical direction X for night use and may have a rear flap in the rear portion M3. If the napkin does not have wing parts, the main body M is divided into three equal parts along the longitudinal direction The area in which it is arranged is referred to as a rear part M3.

The wing portion W is configured to largely protrude outward in the lateral direction Y from the intermediate portion M2 of the main body M. When worn, the wing portion W is bent and fixed to the crotch area of clothing.

As shown in FIGS. 1 and 2, the napkin 1 includes an absorbent core 4, a top sheet 2, a back sheet 3, a pair of side sheets 5, and an intermediate sheet 9. In the main body M, the napkin 1 has a structure in which a back sheet 3, an absorbent core 4, and a top sheet 2 are laminated in the thickness direction Z. These structures are appropriately joined and integrated, for example, by joining with an adhesive, heat sealing, etc., and by embossing with the compressed grooves 6, etc.

The absorbent body 4 extends along the longitudinal direction X and is disposed between the top sheet 2 and the back sheet 3. The absorber 4 absorbs liquid from the surface on the top sheet 2 side, diffuses it inside, and retains the liquid. The absorbent body 4 has a skin side surface 4a and a non-skin side surface 4b.

[Components of each part]
(Absorber)
In this embodiment, the absorbent body 4 has a laminated structure of absorbent sheets.
As shown in FIG. 2, the absorbent body 4 includes a main absorbent sheet 41 and a central absorbent sheet 42.
The main body absorbent sheet 41 has a folding structure in which both ends in the width direction are overlapped on the back sheet 3 side and folded into three. The main body absorbent sheet 41 has a length extending from the middle part M2 to the front part M1 and the rear part M3, and has the outer shape of the absorbent body 4.
The central absorbent sheet 42 has a folded structure in which both ends in the width direction are overlapped on the topsheet 2 side and folded into three. In the folded state, the central absorbent sheet 42 has a narrow width with a shorter length in the horizontal direction Y than the folded main body absorbent sheet 41, and a narrower width in the longitudinal direction X than the main body absorbent sheet 41. It is short and arranged at the center of the intermediate portion M2 in the lateral direction Y. In this embodiment, the central absorbent sheet 42 extends from the intermediate portion M2 to a portion of each of the front portion M1 and the rear portion M3. The central absorbent sheet 42 is housed inside the folded structure of the main absorbent sheet 41.
The main absorbent sheet 41 and the central absorbent sheet 42 are adhesively fixed with an adhesive (not shown).

In the above laminated structure, the skin-side surface of the main absorbent sheet 41 located above the central absorbent sheet 42 constitutes the skin side surface 4a of the absorbent body 4. Further, the non-skin side surface of the main body absorbent sheet 41 located below the central absorbent sheet 42 constitutes the non-skin side surface 4b of the absorbent body 4.

As shown in FIG. 2, in the intermediate portion M2 of the absorbent body 4, the main absorbent sheet 41 and the central absorbent sheet 42 are laminated in the central region in the lateral direction Y. In the absorbent body 4, only the main body absorbent sheets 41 are laminated in both side regions on both sides of the central region in the lateral direction Y with the central region interposed therebetween. Therefore, in the middle portion M2 of the absorbent body 4, the number of stacked sheets in the central region in the lateral direction Y is greater than the number of stacked sheets in both side regions, and therefore the basis weight becomes higher. The absorbent body 4 has a high basis weight portion 8 having a higher basis weight than the surrounding area. The high basis weight portion 8 is bulkier than other portions of the absorbent core 4. Having the high basis weight portion 8 improves liquid absorption.

The main absorbent sheet 41 and the central absorbent sheet 42 that constitute the absorbent body 4 are each a thin sheet body in which a superabsorbent polymer material is sandwiched and fixed between two sheet-like fiber layers made of hydrophilic fibers. It is. In forming the absorbent sheet, the superabsorbent polymer can be integrated using the adhesive force developed by wetting or a binder such as an adhesive or adhesive fibers added separately. The production can be performed by various commonly used methods, and may be wet or dry. The absorbent sheet has a thickness of 3 mm or less and has highly absorbent polymer materials dispersed in the plane of the sheet, making it difficult to cause gel blocking and having high absorbency. Examples include those described in paragraphs [0019] to [0031] of JP-A-8-246395.

Examples of the hydrophilic fibers constituting the absorbent sheet include those obtained by hydrophilizing hydrophobic fibers and those that are themselves hydrophilic. In particular, those that are hydrophilic and have water-retaining properties themselves are preferred. Preferred examples of the latter hydrophilic fibers include natural fibers, regenerated cellulose fibers, and semi-synthetic fibers. As the hydrophilic fiber, pulp and rayon are particularly preferable, and pulp is more preferable. Further, crosslinked cellulose fibers obtained by crosslinking cellulose fibers within and/or between molecules, or bulky cellulose fibers obtained by mercerizing wood pulp may also be used. Examples of the pulp include, but are not limited to, wood pulp such as softwood kraft pulp or hardwood kraft pulp, and natural cellulose fibers such as cotton pulp and straw pulp. These pulps can be used alone or in combination of two or more.

The superabsorbent polymer material constituting the absorbent sheet is, for example, obtained by polymerizing a water-soluble ethylenically unsaturated monomer containing acrylic acid or an acrylate as a main component and optionally adding a crosslinking agent. Hydrogel materials may be mentioned. In addition, polyethylene oxide, polyvinylpyrrolidone, crosslinked products of sulfonated polystyrene and polyvinylpyridine, saponified products of starch-poly(meth)acrylonitrile graft copolymers, starch-poly(meth)acrylic acid graft copolymers, starch-poly( Examples include hydrolysates of meth)acrylic ester graft copolymers. These super absorbent polymer materials can be used alone or in combination of two or more. The superabsorbent polymer material is preferably one that can absorb and retain 20 times or more, particularly 50 times or more, of pure water and gelatinizes its own weight.
As for the shape of the superabsorbent polymer material, various shapes used for absorbent sheets can be used without particular limitation. Examples include spherical, granular, fibrous, bale-like, and lump-like shapes.

As shown in FIG. 2, the absorbent body 4 has a plurality of slits 43 that communicate in the thickness direction Z from the skin side surface 4a toward the non-skin side surface 4b. Further, the absorbent body 4 has a region containing the cooling sensation agent 11. Details will be described later.

(Top sheet)
The top sheet 2 is configured as a liquid-permeable sheet material, and is disposed above the absorbent core 4 in the thickness direction Z, and is disposed on the skin side surface 4a side of the absorbent core 4. The topsheet 2 has, for example, a plurality of protrusions 15 that protrude outward in the thickness direction Z. Details will be described later.

Various liquid-permeable sheets can be used as the top sheet 2. Considering the good feel to the touch, hydrophilic nonwoven fabrics are preferred, thermal bond nonwoven fabrics are more preferred, and air-through nonwoven fabrics are particularly preferred. It is preferable that the fibers constituting the nonwoven fabric of the top sheet 2 are thermoplastic resin fibers that have been subjected to a hydrophilic treatment, and that the fibers are three-dimensionally crimped fibers such as secondary crimps or tertiary crimps. . Specifically, the fibers constituting the nonwoven fabric of the top sheet 2 are polyethylene, polypropylene, polyester (polyethylene terephthalate, etc.), nylon, and composite fibers of these are prepared and cut into predetermined lengths to form staples. At this stage, it is made hydrophilic by coating with various hydrophilic agents. Hydrophilic agents include various alkyl sulfonates represented by α-olefin sulfonates, acrylates, acrylate/acrylamide copolymers, esteramides, salts of esteramides, polyethylene glycol and its derivatives, water-soluble Hydrophilic treatment using commonly used hydrophilic agents such as polyester resins, various silicone derivatives, various saccharide derivatives, and mixtures thereof can be used.

(Back sheet)
The back sheet 3 is disposed below the absorbent core 4 in the thickness direction Z, and is disposed on the non-skin side surface 4b side of the absorbent core 4. The back sheet 3 is joined to the top sheet 2 and side sheets 5 by adhesive, heat sealing, or the like, for example, at its periphery. The back sheet 3 may be bonded to the absorbent body 4 with an adhesive or the like.
Although not shown, the back sheet 3 is provided with an adhesive portion for fixing the main body M and the wing portions W to clothing.
As the back sheet 3, various materials having leakproof properties can be used. For example, a moisture-impermeable or moisture-permeable film alone, a film and a nonwoven fabric bonded together, or a water-repellent nonwoven fabric (SMS, SMMS, etc.) can be used. From the viewpoint of cost and matching with the anti-slip adhesive material, it is most preferable to use the non-transparent film alone as the leakage preventive material.

(side seat)
The pair of side sheets 5 are arranged on the outer side of the top sheet 2 in the lateral direction Y. As the side sheet 5, a sheet material having lower hydrophilicity than the top sheet 2 is preferable. The side sheet 5 is bonded to the top sheet 2 by, for example, an adhesive (not shown).
The side sheet 5 is preferably a water-repellent non-woven fabric, such as a water-repellent non-woven fabric manufactured by a card method, a spunbond non-woven fabric, a melt-blown non-woven fabric, a spunlace non-woven fabric, a heat roll non-woven fabric, a needle punched non-woven fabric, etc. Various water-treated nonwoven fabrics can be used. Particularly preferably, for example, spunbond nonwoven fabric, spunbond-meltblown (SM) nonwoven fabric, spunbond-meltblown-spunbond (SMS) nonwoven fabric, etc. are used.

(intermediate sheet)
The intermediate sheet 9 is arranged between the top sheet 2 and the absorbent core 4. The intermediate sheet 9 is also called a second sheet or a sublayer sheet. The intermediate sheet 9 improves the permeability of liquid from the topsheet 2 to the absorber 4 and prevents the liquid absorbed by the absorber 4 from returning to the topsheet 2.
The intermediate sheet 9 is partially joined to the top sheet 2 and the absorbent body 4 by an adhesive (not shown) provided in a striped or spiral shape.
The intermediate sheet 9 is preferably one that is hydrophilic and has excellent liquid diffusivity. Examples include nonwoven fabrics containing thermoplastic fibers. As the nonwoven fabric, nonwoven fabrics obtained by various manufacturing methods can be used. For example, an air-through nonwoven fabric in which thermal bonding points between fibers are formed using an air-through method on a fibrous web obtained by a carding method or an air-laid method, or an air-through nonwoven fabric in which thermal bonding points between fibers are formed in a fibrous web obtained by a carding method using a heat rolling method. Various nonwoven fabrics can be used, such as heat rolled nonwoven fabrics, heat embossed nonwoven fabrics, spunlace nonwoven fabrics, needle punched nonwoven fabrics, and resin bonded nonwoven fabrics.

(press groove)
As shown in FIGS. 1 and 2, the top sheet 2 and the absorbent body 4 are compressed together in the thickness direction Z, and compressed grooves 6 extending in the longitudinal direction X are formed on the top sheet 2 side of the main body M.
In the compressed groove 6, "extending in the longitudinal direction X" is not limited to a mode parallel to the longitudinal direction X, but broadly includes a mode extending from the front to the rear. That is, the compressed groove 6 may be curved or meandering. Furthermore, the expression "the grooves extend in the longitudinal direction It is sufficient if it is substantially continuous in the vertical direction X.

As shown in FIG. 2, the compressed groove 6 has a configuration in which the top sheet 2 and the absorbent core 4 are integrally recessed toward the back sheet 3 side. The compressed grooves 6 can be formed according to a conventional method by compressing with or without heat or embossing such as ultrasonic embossing. In the compressed groove 6, the top sheet 2 and the absorbent core 4 are integrated by heat fusion or the like.

With such a configuration, the compressed groove 6 has higher rigidity than other regions and becomes a portion that is less likely to deform. Therefore, when the napkin 1 receives an external force, the compressed groove 6 can function as a deformation origin that promotes deformation of the surrounding low-rigidity region, or as a portion that exerts a resistance against the external force.
Moreover, since the compression groove 6 has a higher density of fibers than the surrounding area, it can absorb and retain the liquid excreted by capillary action. As a result, the compressed grooves 6 also have a leak-proofing effect that prevents liquid from leaking to the outside of the absorbent body 4.
As shown in FIG. 1, the compressed grooves 6 are arranged in pairs on the left and right in the lateral direction Y. The compressed grooves 6 shown in FIG. 1 are configured symmetrically with respect to a center line that equally divides the main body M into two in the lateral direction Y.

The compression groove 6 has a linear main body compression groove 61 extending in the vertical direction X and an intermediate compression groove 62.
The main body compression groove 61 has a pair of left and right compression grooves that extend in the vertical direction It extends so as to be close to the main body M, and is configured to go around the main body M as a whole.
A pair of intermediate compression grooves 62 are located inside the main body compression groove 61 and extend in the lateral direction Y. The pair of intermediate compressed grooves 62 are located so as to sandwich the intermediate portion M2 along the longitudinal direction X, and have a convex shape outward in the longitudinal direction X. Both ends of the pair of intermediate compression grooves 62 are spaced apart from the main body compression groove 61.

[Detailed structure of absorber]
A cooling agent 11 is coated on the skin side surface 4a of the absorbent body 4, and the absorbent body 4 has a region containing the cooling agent 11 on the skin side surface 4a. In FIG. 1, the area where the cooling sensation agent 11 is located is shown surrounded by a dashed line. In FIG. 2, in order to explain the position of the cooling sensation agent 11, the cooling sensation agent 11 is schematically illustrated with a thickness for convenience.

(Cooling agent and its placement position)
The cooling agent 11 is applied to the skin side 4a of the absorbent body 4. In FIG. 5, regions containing the cooling sensation agent 11 are indicated by dots. As shown in FIG. 5, the cooling sensation agent 11 is located over the entire length in the vertical direction X in the center region in the horizontal direction Y of the skin side surface 4a of the absorbent body 4, and is not located in both side regions. After the cooling sensation agent 11 is applied, the cooling sensation agent 11 is allowed to stand for a predetermined period of time, so that the cooling sensation agent 11 slightly spreads outward in the lateral direction Y. As a result, in the area where the cooling agent 11 of the napkin 1 is located in a plan view, the basis weight of the cooling agent 11 at the central portion in the lateral direction Y is higher than that around the area (both side portions). Since the cooling agent 11 is coated over the entire length of the absorber 4 in the longitudinal direction It is uniform at X.

As the cooling sensation agent 11, those known in the art can be used. For example, the cooling agent 11 may include various types that can stimulate temperature receptors on the wearer's skin or mucous membrane surface and convey a cooling sensation to the wearer without changing the temperature on the skin or mucous membrane surface. Agents can be used. Examples include those described in paragraphs [0006] to [0086] of JP-A No. 2005-12918, such as cyclohexyl derivatives, cyclohexanol derivatives, and carboxamides. Among these, water-insoluble or poorly water-soluble ones are preferable from the viewpoint of refreshing smell, fast-acting properties, and sustainability. Water-insoluble or poorly water-soluble cooling sensation agents are difficult to transfer to the non-skin side with the liquid, so the cooling sensation tends to last. Menthyl lactate and menthol are preferable as water-insoluble or poorly water-soluble substances. The term "water-insoluble or poorly water-soluble" as used herein refers to solubility of 1 g or less per liter of water at 25°C, and particularly "water-insoluble" means 0.1 g or less per liter of water at 25°C. It is said that the solubility of
The cooling sensation agent 11 may be coated on the surface 4a of the absorber 4 in a state dissolved in a solvent, or may be coated without using a solvent. As the solvent, various commonly used solvents can be used. Examples include dipropylene glycol.
It is particularly preferable that the cooling sensation agent 11 contains menthol and menthyl lactate because the cooling sensation effect can be felt quickly after wearing, is gentle, and increases sustainability.

In this embodiment, an example is given in which the cooling sensation agent 11 is included in the absorbent body 4, but in the state of the napkin 1, it may be applied to the intermediate sheet 9, which is a member located on the side of the top sheet 2 from the absorbent body 4. The intermediate sheet 9 may also contain a cooling agent 11.

By using the cooling sensation agent 11 in the napkin 1, a cooling sensation can be given to the wearer, and the wearer can feel refreshed by the cooling sensation. As shown in FIG. 5, the cooling sensation agent 11 is coated over the entire length in the vertical direction, so it can provide a cooling sensation also in the front and back directions of the body, reducing discomfort such as stuffiness. can.
Furthermore, by disposing the cooling agent 11 on the skin side 4a of the absorber 4 or on the intermediate sheet 9, the volatile components of the cooling agent 11 are transferred to the skin via the top sheet 2, so that the cooling agent 11 is It lasts a long time and can give the wearer a moderately cool sensation without being excessive when using the napkin.
In addition, as described above, the cooling agent 11 is located in the center of the absorber 4 in the lateral direction Y, and is not located on either side of the absorber 4 in the lateral direction Y. Therefore, the cooling agent 11 does not stimulate the groin area. can be reduced.
In addition, in the region where the cooling agent 11 of the absorbent body 4 is located, the basis weight of the cooling agent is uniformly distributed along the vertical direction X, and the center portion in the horizontal direction Y is cooler than the surrounding area of the central portion in the horizontal direction Y. Sensitizer basis weight is high. As a result, it is possible to efficiently provide a refreshing feeling due to a cooling sensation to the excretory area, while making it difficult to provide a cooling effect to the groin area, which is relatively susceptible to stimulation.

(slit)
As shown in FIGS. 2 and 5, the absorbent core 4 has a plurality of slits 43 that communicate in the thickness direction Z from the skin side surface 4a toward the non-skin side surface 4b. The slit 43 is a portion (divided portion) where the continuity of the constituent materials of the absorber 4 is interrupted, and is a gap portion where there is no member.
The slit 43 is a ventilation means arranged in the thickness direction Z of the absorbent body 4. The slit 43 guides the volatile components of the cooling agent 11 to the skin. The slit 43 acts as a movement path for volatile components of the cooling agent 11 and a movement path for air due to deformation of the absorber 4 and the like. The slit 43 can be opened and closed by deforming the absorbent body 4 due to the wearer's movements when wearing the napkin.

As shown in FIG. 5, a plurality of slits 43 are formed, for example, in an area surrounded by the main body pressing groove 61 and sandwiched between a pair of intermediate pressing grooves 62. The region where the plurality of slits 43 are formed is referred to as a slit region 44. The plurality of slits 43 are located across the longitudinal direction X of the napkin 1, including the area facing the excretion part.
In the absorbent body 4, the slits 43 are formed in a straight line extending in the vertical direction X, and a plurality of slits 43 are distributed in the XY plane. In this embodiment, vertical slit rows 45A to 45D, in which a plurality of slits 43 are arranged spaced apart in the vertical direction X, are arranged spaced apart in the horizontal direction Y. The slits of the slit rows adjacent in the horizontal direction Y are positioned so as to be shifted in the vertical direction X.

By providing the slits 43, the cooling agent 11 can be efficiently delivered to the skin from a wide area of the absorbent body 4 while suitably controlling the direction in which the cooling agent 11 oozes in the planar direction. In this embodiment, by providing the slit 43 extending in the vertical direction X, the cooling agent 11 is preferentially transferred in the front-rear direction, and is difficult to transfer to both ends in the horizontal direction Y. This makes it difficult for the cooling sensation agent 11 to irritate the inguinal region, making it possible to provide a comfortable wearing feeling.

The slit 43 can be defined as a cut portion having a width of 0.5 mm or less in the transverse direction Y of the member break, preferably 0.3 mm or less, and more preferably 0.2 mm or less. The width of the slit 43 can be measured by taking out the absorbent body 4 from the napkin 1 and placing it on a horizontal table in a natural state without applying any tension using a digital microscope VHX-900 manufactured by Keyence Corporation. During measurement, the measurement magnification is adjusted as appropriate.

The slits 43 may have various depths in the thickness direction Z of the absorbent body 4. For example, it may be located at a predetermined depth from the skin side surface 4a, or it may be located over the entire thickness direction Z of the absorbent body 4 and penetrate through the absorbent body 4 as in this embodiment.

Furthermore, the slits 43 are not limited to being disposed only in the absorbent core 4, and may be slits that penetrate from the intermediate sheet 9 to the absorbent core 4 at the same position. Thereby, the path of the volatile components of the cooling sensation agent 11 is continuous from the absorbent body 4 to the intermediate sheet 9, and the volatile components can be smoothly sent from the inside of the absorbent body 4 to the skin.

As shown in FIGS. 6A to 6C, the distance L2 between the slits 43 in the vertical direction X is preferably equal to or less than the length of the slit 43 (length in the vertical direction X) L1. By making the vertical distance L2 between the slits 43 as small as possible, the effect of suppressing the cooling agent 11 from seeping outward in the horizontal direction Y of the absorber 4 becomes higher. From the viewpoint of suppressing exudation of the cooling sensation agent 11, the distance L2 between the slits 43, 43 means the length of the continuous portion of the absorber 4 in which there is no discontinuous portion in the slit region 44 as a whole. When the slit area 44 has a plurality of slit rows 45, the entire slit row 45 is regarded as one row and the interval L2 is determined.

As shown in FIG. 6(A), when one slit row 45 is arranged, the interval L2 between the slits 43 is set to be equal to or less than the length L1 of the slit 43 in the vertical direction (L2≦L1). It is preferable. From the viewpoint of maintaining the strength of the absorber 4 and preventing it from twisting, the interval L2 is preferably greater than 0 so that the slits 43 arranged in a row are not connected to each other.

Further, as shown in FIG. 6(B), when parallel slit rows 45A, 45B, and 45C are arranged, the vertical interval L2 between the slit rows 43 and 43 adjacent to each other in the horizontal direction Y It is preferable that the length of the slit 43 in the longitudinal direction X is equal to or less than L1 (L2≦L1). In other words, the distance L2 between the slits 43, 43 in the vertical direction This means the interval L2. Therefore, for one slit row, even if the distance L2 in the vertical direction between the slits 43 exceeds the length L1 of the slits 43 in the vertical direction X, the above condition may be satisfied. Thereby, the slit rows can cooperate with each other to suppress the cooling agent from seeping out in the width direction. In this case, there may be a portion where the interval L2 between adjacent slits 43, 43 in different columns is 0 (zero). In particular, as shown in FIG. 6(C), it is preferable that the intervals L2 in the vertical direction X between adjacent slits 43, 43 in different columns are all 0 (zero). Thereby, in the slit region 44, the slit 43 exists on any virtual line that crosses the vertical direction

[Detailed configuration of top sheet]
As shown in FIG. 2, the top sheet 2 has a plurality of convex portions 15 that protrude outward in the thickness direction Z in a dome shape. The convex portion 15 is configured as a portion surrounded by a surface embossed portion 7 in which the top sheet 2 is compressed in the thickness direction Z. The surface embossed portion 7 does not reach the intermediate sheet 9 located immediately below the top sheet 2 in the thickness direction Z, and the intermediate sheet 9 has no embossed portion formed therein.
As shown in FIG. 1, the surface embossed portion 7 in the topsheet 2 may be formed at least in a region overlapping with the cooling sensation agent 11 in plan view, but may be formed in the entire topsheet 2.

The topsheet 2 is formed, for example, by embossing a nonwoven web made of predetermined fibers. The embossing process is performed using, for example, an embossing roll having a lattice pattern of emboss forming convex portions formed on its circumferential surface, and a flat roll having a smooth circumferential surface and disposed opposite to the embossing roll. be able to.

The convex portion 15 is configured as a solid convex fiber aggregate. Macroscopically, the surface of the convex portion 15 is constituted by a dome-shaped curved surface, but microscopically, unevenness due to fibers may be formed. The structure of the convex portion 15 can take various shapes such as a prismatic shape and a truncated pyramid shape.
Further, since the topsheet 2 has the convex portions 15 configured as fiber aggregates, the convex portions 15 can have a liquid retaining function.

As shown in FIG. 2, the topsheet 2 has a plurality of convex portions 15 having different heights in the thickness direction Z. As shown in FIG. More specifically, as shown in FIGS. 2 and 3, the convex portion 15 includes a first high convex portion 151, a second high convex portion 152, and a low convex portion 153.
The first high convex portion 151 and the second high convex portion 152 are higher than the low convex portion 153 in the thickness direction Z. The first high convex portion 151 has the same height as the second high convex portion 152 in the thickness direction Z.
In this way, the topsheet 2 has a plurality of convex portions 15 having different heights in the thickness direction Z.
As shown in FIG. 4(A), the area of each convex part 15 in plan view is that the first high convex part 151 is the largest (large area), the second high convex part 152 is the next largest (medium area), The low convex portion 153 is the smallest (small area).
Furthermore, the fiber density is highest in the low convex portion 153 and lower in the first high convex portion 151 and the second high convex portion 152 than in the low convex portion 153. The first high convex portion 151 has a fiber density equal to or lower than that of the second high convex portion 152.

As shown in FIG. 3, the surface embossed portion 7 is configured linearly. The surface embossing portion 7 includes a first linear emboss group 71 and a second linear emboss group 72 that overlap.
The first linear embossing group 71 has a plurality of first embossing lines 711 extending in a first direction P oblique to the vertical direction X and the horizontal direction Y. The plurality of first embossed lines 711 have a linear shape extending in the first direction P, and are arranged parallel to each other and spaced apart from each other. The plurality of first embossed lines 711 are arranged in a period in which the intervals between adjacent first embossed lines 711 are alternately a first interval a and a second interval b that is wider than the first interval a. .
The second linear embossing group 72 has a plurality of second embossing lines 721 extending in a second direction Q oblique to the vertical direction X and the horizontal direction Y. The first direction P and the second direction Q are different in direction. The plurality of second embossed lines 721 have a linear shape extending in the second direction Q, and are spaced apart from each other and arranged in parallel. The plurality of second embossed lines 721 are arranged in a period in which the intervals between adjacent second embossed lines 721 alternate with a third interval c and a fourth interval d wider than the third interval c. .
Furthermore, portions corresponding to the intersections of the plurality of first embossed lines 711 and the plurality of second embossed lines 721 are non-embossed portions 73 that are not embossed. That is, each of the first embossed line 711 and the second embossed line 721 is a straight line with discontinuous parts where the non-embossed portions 73 are located at predetermined intervals, and the embossed line as a whole substantially extends in the first direction P. and is continuous in the second direction Q. If a line exists in the non-embossed portion 73, the first embossed line 711 and the second embossed line 721 intersect with each other.

The angle between the first direction P and the second direction Q may be an acute angle (obtuse angle) or 90 degrees, and is not limited. In this embodiment, referring to FIG. 3, the angle between the first embossed line 711 and the second embossed line 721 is configured to include a relatively small angle α and a relatively large angle β. Then, the bisector of the relatively small angle α coincides with the vertical direction X, and the bisector of the relatively large angle β coincides with the horizontal direction Y.

As shown in FIGS. 3 and 4, the convex portion 15 has two linear first emboss lines 711 of the first linear emboss group 71 and a second line in a plan view from the thickness direction Z. It is formed within a rectangular region formed by two linear second embossing lines 721 of the shaped embossing group 72.
A diamond-shaped area formed by two linear first embossed lines 711 arranged at a second interval b and two linear second embossed lines 721 arranged at a fourth interval d. constitutes the first high convex portion 151.
A parallelogram-shaped area formed by two linear first embossed lines 711 arranged at a first interval a and two linear second embossed lines 721 arranged at a fourth interval d. , and a parallelogram formed by two linear first embossed lines 711 arranged at a second interval b and two linear second embossed lines 721 arranged at a third interval c. The shaped region constitutes the second high convex portion 152 .
A diamond-shaped area formed by two linear first embossed lines 711 arranged at a first interval a and two linear second embossed lines 721 arranged at a third interval c constitutes a low convex portion 153.

In this way, in the napkin 1, a plurality of first embossed lines 711 are arranged at intervals in which two different types of intervals are alternately arranged, and two different types of intervals are alternately arranged by intersecting the first embossed lines 711. By forming the surface embossed portion 7 with the second embossed lines 721 arranged at regular intervals, three types of convex portions 15 (first high convex portion 151, second high convex portion 152) having different areas in plan view are formed. , low convex portions 153) can be formed.
As shown in FIG. 4A, the embossed pattern of the surface embossed portion 7 includes a first high convex portion 151 that is a large area diamond-shaped pattern element, and a second high convex portion 151 that is a medium area parallelogram-shaped pattern element. It includes a high convex portion 152 and four low convex portions 153 which are diamond-shaped pattern elements with a small area.

Here, the topsheet 2 can be manufactured, for example, as follows. That is, an upper layer containing heat-stretchable fibers and a lower layer that does not contain heat-stretchable fibers or contains heat-stretchable fibers in a lower proportion than the upper layer are laminated, and the upper and lower layers are partially fixed to each other by embossing. After that, heat treatment is performed. The fixed part becomes the surface embossed part (fixed part). Since the upper and lower layers contain different proportions of heat extensible fibers, the heat treatment suppresses the elongation of the fibers in the lower layer more than that of the upper layer, while the fibers in the upper layer elongate, causing the fibers to expand outward on the upper layer side. A convex portion protruding toward the surface is formed. The height of the convex portion is related to the area in plan view, and in a certain area range, the larger the area, the higher the height of the convex portion. Therefore, the first high convex portion 151 and the second high convex portion 152 are formed to have a higher height than the low convex portion 153.

Thus, in the napkin 1, the skin side of the top sheet 2 located above the position of the cooling sensation agent 11 in the thickness direction Z (on the skin side) has a plurality of convex portions 15 having different heights.
As a result, when the napkin is worn, the first high convex portion 151 and the second high convex portion 152, which are higher in height among the plurality of convex portions 15, contact the wearer's skin preferentially than the low convex portion 153. , the area where the volatile components of the cooling sensation agent 11 come into direct contact with the skin can be reduced. Therefore, it is possible to provide a moderate cooling sensation to the skin without excessive irritation.

Further, as shown in FIGS. 2 and 4A, the first high convex portions 151 and the low convex portions 153 are alternately located along the vertical direction X and the horizontal direction Y. The low convex portion 153 has a lower height and higher fiber density than the first high convex portion 151.
Thereby, it is possible to maintain a uniform cooling effect within the surface.
That is, in addition to contacting the wearer's skin preferentially than the low convex portions 153, the first high convex portions 151 have a lower fiber density, so that the volatile components of the cooling agent 11 are more concentrated. It spreads easily and provides an immediate cooling sensation to the skin. On the other hand, the low convex portion 153 has a structure that is difficult to contact with the skin due to its low height, and has a higher fiber density, so diffusion of the cooling agent from the low convex portion 153 is suppressed. , the cooling effect can be sustained. The first high convex portions 151 contributing to such an immediate cooling effect and the low convex portions 153 contributing to a delayed cooling effect are alternately located along the vertical direction X and the horizontal direction Y. As a result, a uniform cooling effect can be sustained within the surface, suppressing localized strong cooling sensations, and providing the wearer with a pleasant and refreshing feeling with less skin irritation.

Further, as shown in FIG. 3, the second high convex portions 152 and the low convex portions 153 are alternately located along the first direction P and the second direction Q. The low convex portion 153 has a lower height and higher fiber density than the second high convex portion 152.
Thereby, it is possible to maintain a uniform cooling effect within the surface.
That is, in addition to contacting the wearer's skin preferentially than the low convex portions 153, the second high convex portions 152 have a lower fiber density, so that the volatile components of the cooling agent 11 are more easily absorbed. It spreads easily and provides an immediate cooling sensation to the skin. On the other hand, the low convex portion 153 has a structure that is difficult to contact with the skin due to its low height, and has a higher fiber density, so diffusion of the cooling agent from the low convex portion 153 is suppressed. , the cooling effect can be sustained. The second high convex portions 152 that contribute to an immediate cooling sensation effect and the low convex portions 153 that contribute to a delayed cooling sensation effect are alternately located along the first direction P and the second direction Q. By doing so, it is possible to maintain a uniform cooling effect within the surface, suppress the local cooling sensation from becoming strong, and provide the wearer with a pleasant and refreshing feeling with less skin irritation. can.

In this way, in the napkin 1, the convex portions are arranged such that the high convex portions and the low convex portions are alternately located in the vertical direction X, the horizontal direction Y, the first direction P, and the second direction Q.

Furthermore, in the present embodiment, a non-embossed part 73 that is not embossed and becomes a discontinuous part is provided at a position corresponding to the intersection of the first embossed line 711 and the second embossed line 721, so that Compared to the case where the non-embossed portion 73 is not provided, the area ratio of the surface embossed portion 7 on the topsheet 2 can be lowered.

Here, the non-adhesive part around the surface embossed part 7 has a higher fiber density than the top part of the convex part 15 and easily draws in the liquid. Therefore, by reducing the area ratio of the surface embossed portions 7, the amount of liquid remaining on the top sheet 2 can be reduced even when liquid is absorbed. In the topsheet 2, the liquid remaining on the topsheet 2 is reduced by reducing the area ratio of the surface embossed portions 7, and by providing a plurality of projections 15 with different heights, the high projections (first height The liquid is more easily drawn into the low convex portions 153 which have a higher fiber density than the convex portions 151 and the second high convex portions 152), and the liquid is drawn into the first high convex portions 151 and the second high convex portions 152 more easily than the low convex portions 153. becomes difficult to be drawn into. Therefore, the first high convex portions 151 and the second high convex portions 152 are difficult to collapse, and their sparse structure is easily maintained. Therefore, even when the liquid is absorbed, the transfer of the cooling agent to the skin is less likely to be inhibited by the liquid, and the diffusion of the cooling agent in the first high convex portions 151 and the second high convex portions 152 is less likely to be suppressed. It is easy to get a feeling effect.
In addition, the surface embossed portion 7 is formed into a film by fusion of a plurality of fibers, and has a structure that makes it difficult for volatile components of the cooling agent 11 to pass through. Therefore, by lowering the area ratio of the surface embossed portions 7 in the topsheet 2, the cooling effect of the cooling agent 11 can be increased compared to the case where no non-embossed portions are provided.

The area ratio of the surface embossed portions 7 is preferably 10% or less from the viewpoint of cooling effect. Further, in a configuration in which the surface embossed portions 7 are provided on the topsheet 2 to form convex portions 15 of different heights, the area ratio of the surface embossed portions 7 is preferably 7% or more from the viewpoint of absorption performance.
In this embodiment, an example has been given in which a plurality of convex portions 15 having different heights are formed on the top sheet 2 by providing the surface embossed portion 7, but the present invention is not limited to this. For example, the surface sheet may be formed with a plurality of convex portions having different heights by shaping the sheet into convex and convex portions using two rolls having concave and convex shapes on the circumferential surface without performing embossing. In this case, since no embossing is performed, the area ratio of the embossed portion is 0%.

The area ratio of the surface embossed portions is expressed as the ratio of the total area of the surface embossed portions 7 (recesses) to the entire surface sheet 2.
The area ratio of the surface embossed portion is measured by the following method. First, an enlarged photograph of the surface of the topsheet 2 is obtained using a microscope (manufactured by Keyence Corporation, VHX-1000). A scale is attached to this surface enlarged photograph, the dimensions of the surface embossed portion 7 are measured in the total area T of the measurement portion, and the area U of the surface embossed portion is calculated.
The area ratio of the surface embossed portion can be calculated using the formula (U/T)×100.

As an example, 3 g of simulated menstrual blood is applied to a top sheet 2 having convex portions in which the height of the first high convex portion 151 and the second high convex portion 152 is 1.2 mm, and the height of the low convex portion 153 is 1.0 mm. After injecting and leaving for 10 minutes, the height of each convex portion was measured. As a result, the height of the first high convex part 151 and the second high convex part 152 is 1.1 mm, and the height of the low convex part 153 is 0.7 mm, and due to liquid absorption, the low convex part 153 becomes the first high convex part. It was confirmed that the first high convex part 151 and the second high convex part 152 were more easily crushed than the first high convex part 151 and the second high convex part 152, and it was confirmed that the height of the first high convex part 151 and the second high convex part 152 was easily maintained. This makes it possible to maintain a rapid cooling effect even when liquid is absorbed.
The height of the convex portions 15, that is, the thickness of the top sheet 2, can be determined by observing the cross section of the top sheet 2 in an unloaded state at a magnification of 20 to 100 times using, for example, a microscope (VHX-1000 manufactured by KEYENCE). can be measured.
The simulated menstrual blood was measured using a B-type viscometer (manufactured by Toki Sangyo Co., Ltd., model number TVB-10M, measurement conditions: rotor No. 19, 30 rpm, 25°C, 60 seconds) so that the viscosity was 8 mPa・s. The blood cell/plasma ratio of defibrinated horse blood (manufactured by Nippon Biotest Co., Ltd.) was prepared.

As shown in FIG. 4(B), a non-embossed part 73 is provided at a position corresponding to the intersection of the first embossed line 711 and the second embossed line 721, and the first high convex part 151 and the low convex part 153 constitute first ridge portions 81 that are alternately located and connected along the longitudinal direction X. The first high convex portion 151 and the low convex portion 153 have a rhombic shape in plan view, and two diagonal lines of each extend parallel to the vertical direction X and the horizontal direction Y. In the first ridge portion 81, the first high convex portion 151 and the low convex portion 153 are arranged such that two diagonals extending in the vertical direction X are located on the same straight line.
Further, the first high convex portions 151 and the low convex portions 153 constitute third ridge portions 83 that are alternately located and connected along the lateral direction Y. In the third ridge portion 83, the first high convex portion 151 and the low convex portion 153 are arranged such that two diagonals extending in the horizontal direction Y are located on the same straight line.
In FIG. 4B, the rhombus-shaped first high convex portions 151 and low convex portions 153 are shown by dense dots, and the parallelogram-shaped second high convex portions 152 are shown by coarse dots.

The plurality of second high convex portions 152 arranged in the vertical direction X are connected to each other to form the second ridge portion 82 . The second high convex portion 152 has a parallelogram shape in plan view. The plurality of second high protrusions 152 are arranged in series so that one diagonal of each parallelogram is connected. The second ridge portion 82 extends in the vertical direction X as a whole and has a zigzag shape.
Further, the plurality of second high convex portions 152 arranged in the lateral direction Y are connected to each other to form a fourth ridge portion 84. The parallelogram-shaped second high convex portions 152 are arranged in a row so that the other diagonal of each parallelogram is connected. The fourth ridge portion 84 extends in the lateral direction Y as a whole and has a zigzag shape.

In this way, in the napkin 1, along the longitudinal direction A plurality of second ridges 82 are formed, each having second high protrusions 152 located at . Further, along the lateral direction Y, a plurality of third ridges 83 including the first high convex portion 151 and the low convex portion 153, and a second high convex portion located between two adjacent third ridges 83 A plurality of fourth ridges 84 having the portions 152 as elements are formed.
As a result, when a force is applied from the outside to the inside in the lateral direction Y, the presence of the zigzag-shaped second ridge 82 buffers the external force and suppresses deformation of the first ridge 81. . Similarly, when a force is applied from the outside to the inside in the vertical direction X, the presence of the zigzag-shaped fourth ridge 84 buffers the external force and suppresses deformation of the third ridge 83 .
In this way, by suppressing the deformation of the first ridge portion 81 and the third ridge portion 83, which are composed of the first high convex portion 151 having a large area and the low convex portion 153 having a small area, the first high convex portion 151 can be The cooling sensation agent volatilization effect and the cooling sensation agent volatilization suppressing effect in the low convex portions 153 are easily maintained. Therefore, it is easy to maintain a moderate cooling effect for a long time.

Note that, for example, the topsheet 2 may be configured to have a fiber density gradient and a hydrophilicity gradient along the thickness direction Z, thereby further reducing the amount of liquid remaining on the topsheet 2.

[Other examples]
Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention.

For example, in the above embodiment, the absorbent body 4 in which the central absorbent sheet 42 and the main absorbent sheet 41 are laminated is taken as an example, but the structure of the absorbent body is not limited to this. For example, the absorbent body may be composed of an absorbent core and a core wrap sheet.
The absorbent core has a structure in which the superabsorbent polymer P is held in a fiber aggregate made of hydrophilic fibers such as pulp fibers, but is not limited to this structure. The absorbent core can be formed by stacking liquid-absorbing materials such as pulp, and by increasing the amount of the liquid-absorbing material stacked than the surrounding area, a high basis weight area is created in the region of the absorbent core facing the excretory part. It is also possible to have a configuration in which
The core wrap sheet has the function of covering the absorbent core and, for example, maintaining the shape of the absorbent core. The core wrap sheet is made of, for example, thin, soft paper such as tissue paper, liquid-permeable nonwoven fabric, or the like.
The cooling agent is coated, for example, on the skin side of the absorbent body, that is, on the core wrap sheet. The cooling agent is applied to the center of the absorbent body in the horizontal direction over the entire length in the vertical direction.

In addition, for example, in the above example, after forming an absorbent body with a laminated structure, a cooling agent is applied to the surface of the absorbent body. An agent may be applied.

Further, for example, in the above-described embodiments, a sanitary napkin is shown as an example of the absorbent article, but the absorbent article is not limited thereto. The absorbent article of the present invention may be, for example, a urine absorbing pad, a discharge sheet, a disposable diaper, or the like.

[Additional explanation]
The explanation of this embodiment will be supplemented below.
(Dimensions of each configuration)
The dimensions of the embossed pattern of the surface embossed portion 7 formed on the topsheet 2 are as follows. However, it is not limited to the numerical values described here.

The height of the first high convex portion 151 is preferably 0.8 mm or more and 2.3 mm or less, more preferably 1.0 mm or more and 2.0 mm or less.
The height of the second high convex portion 152 is preferably 0.5 mm or more and 1.8 mm or less, more preferably 0.8 mm or more and 1.5 mm or less.
The height of the low convex portion 153 is preferably 0.3 mm or more and 1.8 mm or less, more preferably 0.5 mm or more and 1.5 mm or less.
The height of the convex portions 15, that is, the thickness of the top sheet 2, can be determined by observing the cross section of the top sheet 2 in an unloaded state at a magnification of 20 to 100 times using, for example, a microscope (VHX-1000 manufactured by KEYENCE). can be measured.

Referring to FIG. 3(A), the first interval a between adjacent first embossed lines 711 is preferably 4.7 mm or more and 6.5 mm or less, more preferably 5.3 mm or more and 5.9 mm or less. .
The second interval b between adjacent first embossed lines 711 is preferably 7.2 mm or more and 9.0 mm or less, more preferably 7.8 mm or more and 8.4 mm or less.
The third interval c between adjacent second embossed lines 721 is preferably 4.7 mm or more and 6.5 mm or less, more preferably 5.3 mm or more and 5.9 mm.
The fourth interval d between adjacent second embossed lines 721 is preferably 7.2 mm or more and 9.0 mm or less, more preferably 7.8 mm or more and 8.4 mm or less.
The angle α between the first embossed line 711 and the second embossed line 721 is preferably 50° or more, more preferably 55° or more, and preferably 70° or less, and even more preferably 55° or more and 65° or less.

The width of the linear surface embossed portions 7 of the topsheet 2, that is, the width of the linear recesses formed in the topsheet 2, is preferably 0.3 mm or more and 3.0 mm or less, more preferably 0.5 mm or more. It is 0 mm or less.

The area of the large diamond-shaped first high convex portions 151 is preferably 40 mm ² / piece or more and 200 mm ² / piece or less, more preferably 60 mm ² / piece or more and 140 mm ^{2 /} piece when the top sheet 2 is viewed from above. less than or equal to
The area of the medium-area parallelogram-shaped low convex portions 153 is preferably 25 mm ² / piece or more and 100 mm ² / piece or less, more preferably 35 mm ² / piece or more and 80 mm ² / piece when the top sheet 2 is viewed from above. It is as follows.
The area of the small-area diamond-shaped second high convex portions 152 is preferably 10 mm ² / piece or more and 100 mm ² / piece or less, more preferably 30 mm ² / piece or more and 60 mm ² / piece when the top sheet 2 is viewed from above. less than or equal to

The distances a to d between the embossed lines on the top sheet 2, the angle α, the width of the front embossed portion 7, and the area of each convex portion 15 may be measured with the naked eye using a ruler or the like, but preferably by high-speed measurement.・Measure using a high-precision shape measurement system KS-1100 (manufactured by KEYENCE) equipped with a high-precision CCD laser displacement meter. The measurement pitch is 5 μm, the moving speed is 10 cm/s, and the measurement range is specified to include the embossed portion on the surface of the object to be measured and the non-embossed portion in the vicinity. By analyzing the measured data using the shape analysis application KS-Analyzer (manufactured by KEYENCE) attached to the KS-1100, the width, spacing a to d, and angle α of the surface embossed portion 7 can be calculated.

1... Napkin (absorbent article)
2...Top sheet 4...Absorber 4a...Skin side 4b...Non-skin side 9...Intermediate sheet (member on top sheet side)
11... Cooling agent 15... Convex part 151... First high convex part (high convex part)
152...Second high convex part (high convex part)
153...Low convex part

Claims (6)

An absorbent article comprising an absorbent body having a skin side surface and a non-skin side surface, and a top sheet disposed on the skin side surface side, and having a front-rear direction, a width direction, and a thickness direction that are orthogonal to each other,
The top sheet has a plurality of convex portions having different heights in the thickness direction,
An absorbent article having a region containing a cooling agent in the absorbent body or a member located closer to the top sheet than the absorbent body. The plurality of convex portions include a high convex portion and a low convex portion having a lower height and higher fiber density than the high convex portion,
The absorbent article according to claim 1, wherein the high convex portion and the low convex portion are adjacent to each other in the front-rear direction and the width direction. The top sheet has a surface embossed part compressed in the thickness direction,
The plurality of convex portions are surrounded by the surface embossed portion,
The absorbent article according to claim 1 or 2, wherein the surface embossed portion accounts for 10% or less in the topsheet. Any one of claims 1 to 3, wherein the cooling sensation agent is arranged on the skin side side of the absorbent body or on the member, and is not arranged on both widthwise sides of the skin side side of the absorbent body. The absorbent article described in . The absorbent article has a middle portion including a region facing the wearer's excretory area,
The absorbent article according to any one of claims 1 to 4, wherein in the intermediate portion, the basis weight of the cooling sensation agent is lower at the periphery than at the central portion in the width direction. The top sheet has a surface embossed part compressed in the thickness direction,
The surface embossed portion includes a first linear emboss group and a second linear emboss group that overlap,
The first linear emboss group has a plurality of first emboss lines extending in a first direction oblique to the front-rear direction and the width direction, and the plurality of first emboss lines are arranged so that a gap between adjacent first emboss lines is formed. The intervals are arranged at a period in which first intervals and second intervals wider than the first intervals alternate,
The second linear emboss group has a plurality of second emboss lines extending in a second direction diagonal to the front-rear direction and the width direction, which is different from the first direction, and the plurality of second emboss lines are The intervals between adjacent second embossed lines are arranged at a period in which third intervals and fourth intervals wider than the third interval alternate,
The absorbent article according to any one of claims 1 to 5, wherein portions corresponding to intersections of the plurality of first embossed lines and the plurality of second embossed lines are non-embossed parts.

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