WO2020179881A1

WO2020179881A1 - Absorbent article

Info

Publication number: WO2020179881A1
Application number: PCT/JP2020/009506
Authority: WO
Inventors: 俊久林; なるみ山本; 祥平内田
Original assignee: ユニ・チャーム株式会社
Priority date: 2019-03-06
Filing date: 2020-03-05
Publication date: 2020-09-10
Also published as: KR20210134333A; CN111818887B; JPWO2020179881A1; JP7179072B2; KR102611290B1; CN111818887A

Abstract

Provided is an absorbent article in which a water-soluble component and a lipophilic component of a Chinese medicinal material can easily reach the skin of a wearer. This absorbent article includes an absorber (11) and a liquid-permeable sheet member (7) that overlaps the absorber in the thickness direction and is positioned more toward the skin side than the absorber. The absorbent article further includes: a Chinese medicinal material layer (45) that is positioned on at least one of the absorber and the sheet member and contains a Chinese medicinal material having a water-soluble component and lipophilic component; and a solvent layer (51a) that is positioned on at least one of the absorber and the sheet member and contains a lipophilic solvent. A portion of the Chinese medicinal material layer and a portion of the solvent layer overlap in the thickness direction, or overlap in the longitudinal direction or width direction.

Description

Absorbent article

The present invention relates to an absorbent article.

Absorbent articles containing Chinese herbal medicine materials are known. For example, Patent Document 1 discloses an absorbent article in which an intermediate absorber containing a Chinese herbal medicine material is arranged between a surface sheet and a base absorber. In this absorbent article, a powdered Chinese herbal material having the desired particle size distribution and average grain shape is placed in the intermediate absorber. As the Chinese herbal medicine material, crude drugs such as nutsedge (Angelica acutiloba), Angelica acutiloba (Angelica acutiloba) and Kobushi (Angelica acutiloba) are mixed and used at a ratio of, for example, 1: 1: 1.

Japanese Patent No. 4261593

When the Chinese herbal medicine material is placed on the non-skin side of the topsheet as in the absorbent article of Patent Document 1, it seems difficult for the ingredients of the Chinese herbal medicine material to reach the wearer's skin. However, even in that case, if the ingredient is water-soluble, that is, if it is water-soluble, then the herbal medicine material should come into contact with body fluids (ex: menstrual blood), which are liquid excrements, or moisture due to sweat. This allows the component to dissolve in the water. Therefore, when the moisture reaches the skin, the component can reach the wearer's skin.

However, there are cases where the ingredients of the Chinese herbal medicine material have the property of being difficult to adapt to water, that is, they are water-insoluble. For example, when the component has a property of being easily compatible with oil, that is, lipophilicity, it is difficult for the component to dissolve in the water even if the Chinese herbal medicine material comes into contact with water due to body fluid or sweat. In that case, even if the water reaches the skin, it is difficult for the component to reach the wearer's skin. Therefore, even if such a Chinese herbal medicine material is placed in an absorbent article, it may be difficult to fully exert its function as a Chinese herbal medicine material.

The same applies to Chinese herbal medicines that have both water-soluble and lipophilic ingredients. As such a herbal medicine material, for example, one or more kinds of crude drug having a water-soluble component or an extract thereof, and one or more kinds of crude drug having a lipophilic component or an extract thereof Can be mentioned. Further, such Chinese herbal medicine materials include one or more kinds of crude drugs having both water-soluble components and lipophilic components, and extracts thereof.

Therefore, an object of the present invention is an absorbent article provided with a herbal medicine material containing not only a water-soluble ingredient but also a lipophilic ingredient, and the ingredients of these herbal medicine materials can be easily applied to the wearer's skin. The purpose is to provide an absorbent article that can be reached.

The absorbent article of the present invention has a longitudinal direction, a width direction, and a thickness direction, and is located on the skin side of the absorber, overlaps the absorber, the absorber, and the thickness direction, and is a liquid. An absorbent article comprising a permeable sheet member, which is located in at least one of the absorber and the sheet member, and which contains a Chinese herb material containing a water-soluble component and a lipophilic component. , Which is located at least one of the absorber and the sheet member, includes a solvent layer containing a lipophilic solvent, and a part of the Chinese herbal medicine material layer and a part of the solvent layer overlap in the thickness direction. Alternatively, an absorbent article that overlaps in the longitudinal direction or the width direction.

According to the present invention, there is provided an absorbent article provided with a herbal medicine material containing not only a water-soluble ingredient but also a lipophilic ingredient, and the ingredients of these herbal medicine materials can easily reach the wearer's skin. Possible absorbent articles can be provided.

It is a top view which shows the structural example of the sanitary napkin which concerns on 1st Embodiment. It is sectional drawing along the longitudinal center line in FIG. It is a bottom view which shows the structural example of the sanitary napkin which concerns on 1st Embodiment. It is a schematic diagram which shows arrangement|positioning of the solvent layer of the liquid permeable sheet which concerns on 1st Embodiment. It is a schematic diagram which shows the arrangement of the solvent layer in the absorber which concerns on 1st Embodiment. It is a top view which shows the structural example of the sanitary napkin which concerns on 2nd Embodiment. FIG. 7 is a cross-sectional view taken along the longitudinal centerline in FIG. 6. It is a schematic diagram which shows arrangement|positioning of the solvent layer of the liquid permeable sheet which concerns on 2nd Embodiment. It is a schematic diagram which shows the arrangement of the solvent layer of the absorber which concerns on 2nd Embodiment.

Specifically, the present disclosure relates to the following aspects.
[Aspect 1]
A sheet member having a longitudinal direction, a width direction, and a thickness direction, overlapping with the absorber in the thickness direction, located on the skin side of the absorber, and having liquid permeability. An absorbent article comprising the Chinese herbal material layer, which is located at least one of the absorbent body and the sheet member and contains a Chinese herbal medicine material having a water-soluble component and a lipophilic component, and the absorbent body and the sheet member. A solvent layer containing a lipophilic solvent, and a part of the herbal medicine material layer and a part of the solvent layer overlap in the thickness direction, or the longitudinal direction or the width. Absorbent articles that overlap in the direction.

In this absorbent article, a Chinese herbal material having a water-soluble component and a lipophilic component and a lipophilic solvent are partially overlapped in the thickness direction or are overlapped in the plane direction (longitudinal direction or width direction). It is located on at least one of the absorber and the sheet member.
Therefore, in the region where the Chinese herbal medicine material overlaps the lipophilic solvent in the thickness direction or the plane direction, when the body fluid is excreted in the absorbent article and migrates / diffuses in the sheet member and the absorber, a part of the body fluid is released. Via Chinese medicine material and lipophilic solvent. As a result, as the body fluid flows (migrates / diffuses), the lipophilic solvent also migrates / diffuses and comes into contact with at least a part of the Chinese herbal medicine material. Thereby, the lipophilic component of the Chinese herbal medicine material can be dissolved in the lipophilic solvent. Then, the lipophilic solvent containing the lipophilic component diffuses or volatilizes, so that the lipophilic solvent can reach the wearer's skin. Alternatively, when the lipophilic solvent containing the lipophilic component is contained in water such as body fluid or sweat, for example, in a state where it is contained in the form of an oil film on substantially the surface of water, the water becomes vapor or is absorbed. By the body pressure applied to the sex article, it diffuses so as to return to the skin side, so that the lipophilic solvent can reach the wearer's skin together with water. That is, the lipophilic component of the Chinese herbal medicine material can reach the wearer's skin.
On the other hand, in a region where the Chinese herbal medicine material does not overlap with the lipophilic solvent in the thickness direction or the plane direction (a region where it partially overlaps is also possible), when the body fluid migrates and diffuses in the sheet member and the absorber, it is one of the body fluids. The part reaches the herbal medicine material without going through a lipophilic solvent. Alternatively, sweat or the like released from the skin diffuses in the sheet member and reaches the Chinese herbal medicine material. That is, the water such as body fluid and sweat comes into contact with the Chinese herbal medicine material by flow (transfer / diffusion). These allow the water-soluble components of the Chinese herbal medicine material to be dissolved in water such as body fluids and sweat. At that time, since the lipophilic solvent does not exist in the vicinity, it is possible to prevent the lipophilic solvent from covering the Chinese herbal medicine material and making it difficult for water to reach the Chinese herbal medicine material. Then, the water containing the water-soluble component becomes vapor or diffuses to the skin side due to the body pressure applied to the absorbent article, so that the water containing the water-soluble component is applied to the wearer's skin. Can be reached. That is, the water-soluble component of the Chinese herbal medicine material can reach the wearer's skin.
As a result, both components of the Chinese herbal medicine material can easily reach the wearer's skin in the absorbent article containing not only the water-soluble ingredient of the Chinese herbal medicine material but also the lipophilic ingredient. As a result, the absorbent article can exert the effect of the Chinese herbal medicine material, for example, the effect of improving blood flow and blood circulation and warming the body.

[Aspect 2]
The absorbent article according to aspect 1, wherein the solvent layer is located closer to the skin than the Chinese herb material layer.
In this absorbent article, the solvent layer is located closer to the skin than the Chinese herbal medicine material layer. Therefore, when the body fluid is excreted in the absorbent article and migrates and diffuses in the sheet member and the absorber, the body fluid and the lipophilic solvent can surely pass through the Chinese herbal medicine material. Therefore, the lipophilic component of the herbal medicine material can be dissolved in the lipophilic solvent, which allows the lipophilic component of the herbal medicine material to reach the wearer's skin.

[Aspect 3]
The absorbent article according to aspect 2, wherein the solvent layer is further located on the non-skin side of the Chinese herb material layer.
In this absorbent article, the solvent layer is present not only at the position on the skin side of the Chinese medicine material layer but also at the position on the non-skin side of the Chinese medicine material layer. Therefore, when the body fluid is excreted in the absorbent article and migrates and diffuses in the sheet member and the absorber, the body fluid and the lipophilic solvent can more reliably pass through the Chinese herbal medicine material. Therefore, the lipophilic component of the Chinese herbal medicine material can be further dissolved in the lipophilic solvent, whereby the lipophilic component of the Chinese herbal medicine material can be further reached to the wearer's skin.

[Aspect 4]
4. The absorbent article according to any one of aspects 1 to 3, wherein the solvent layer is not arranged in the central portion in the width direction.
The central portion in the width direction of the absorbent article comes into contact with the excretory opening of the wearer and the area in the vicinity thereof, that is, the area of sensitive skin. Therefore, in the present absorbent article, the solvent layer is not arranged in the central portion in the width direction of the absorbent article. Therefore, it is possible to make it difficult for the lipophilic component of the Chinese herbal medicine material to migrate to the region where the sensitive skin region contacts. Thereby, it is possible to prevent the lipophilic component of the Chinese herbal medicine material from reaching the area other than the central part in the width direction of the absorbent article, and prevent the component from directly reaching the sensitive skin area.

[Aspect 5]
The absorbent article according to any one of aspects 1 to 4, further comprising a warming agent having a warming function, which is located at least one of the absorbent body and the sheet member.
This absorbent article further comprises a warming agent having a warming function. Therefore, the air containing moisture such as sweat generated near the skin where the body temperature has risen due to the effect of warmth swells the herbal medicine material, increases its surface area, and makes it easier to release the components of the herbal medicine material. be able to. Furthermore, since the lipophilic solvent can be warmed by the air warmed by the effect of warmth, the components of the Chinese herbal medicine material dissolved in the lipophilic solvent are volatilized together with water and / or the lipophilic solvent, or alone. It can be made easier. As a result, the components of the Chinese herbal medicine material can be made to reach the wearer's skin. Further, when the effect of the Chinese herbal medicine material is the effect of improving blood flow and blood circulation and warming the body, the absorbent article can further warm the body by the synergistic effect of the warming agent and the Chinese herbal medicine material.

[Aspect 6]
In a plan view, the absorbent article is further provided with a warming sensation member that is located on at least one of the front side and the rear side in the longitudinal direction with respect to the absorber in the absorbent article, and includes another warming sensation agent having a warming sensation function, and the sheet. The member, in plan view, is extended to at least one of the front side and the rear side in the longitudinal direction with respect to the absorber, overlaps with the warming member in the thickness direction, and is closer to the skin than the warming member. The absorbent article according to any one of aspects 1 to 5, which is located.
In this absorbent article, other warming agents located at least one of the longitudinal anterior side of the absorber, i.e. the ventral side of the wearer, and the longitudinal side of the absorber, i.e. the dorsal side of the wearer. It is further provided with a warming member including. Therefore, when the absorbent article is attached to the wearer, at least one of the ventral side and the dorsal side of the wearer can be warmed with a warming agent. As a result, the components of the herbal medicine material can reach the wearer's skin, and at least one of the abdomen and the back can be warmed by another warming agent located on at least one of the abdomen and the back.

[Aspect 7]
Another Chinese medicine material layer located at least one of the warm feeling member and the sheet member and containing another Chinese medicine material having a water-soluble component and a lipophilic component, and at least one of the warm feeling member and the sheet member. And another solvent layer containing another lipophilic solvent, and a part of the other herbal medicine material layer and a part of the other solvent layer overlap in the thickness direction. The absorbent article described.
In this absorbent article, on at least one of the anterior side and the posterior side in the longitudinal direction of the absorber, the other Chinese herbal medicine material and the other lipophilic solvent are formed in the thickness direction or the planar direction (longitudinal direction or width direction). It is located on at least one of the warmth member and the seat member while partially overlapping. Therefore, when the absorbent article is worn by the wearer, at least one part of the wearer's abdomen or dorsal side is warmed with a warming sensation, and the sweat generated near the skin whose body temperature has risen due to the effect of warmth. Moist air, such as, can swell other herbal ingredients, increase their surface area, and facilitate the release of other herbal ingredients. Furthermore, since the other lipophilic solvent can be warmed by the air warmed by the effect of warmth, the components of other Chinese herbal materials dissolved in the other lipophilic solvent can be mixed with water and / or other lipophilic solvent. Together or alone, it can be easily volatilized. These allow the components of the other Chinese herbal material to reach the wearer's longitudinal anterior skin at least on one of the longitudinal anterior and posterior sides.

[Aspect 8]
The warming agent contains a warming component that causes the wearer to perceive a warming sensation and a solvent component that dissolves or disperses the warming component, and the solvent component is the lipophilic solvent. 7. The absorbent article according to any one of 7.
In the absorbent article, since the solvent component contained in the warming sensation agent is a lipophilic solvent, the warming sensation agent (solvent component thereof) can be used as the solvent layer, and it is not necessary to separately provide the solvent layer, Alternatively, the area or thickness of the solvent layer can be reduced. Thereby, the distance between the Chinese herbal medicine material and / or the warming agent and the wearer's skin surface can be shortened. Therefore, the Chinese herbal medicine material layer and / or the warming agent can be easily reached by the wearer's skin.

[Aspect 9]
The absorbable article according to any one of aspects 1 to 8, wherein the herbal medicine material comprises a crude drug containing the water-soluble component and a crude drug having the lipophilic component.
As a herbal medicine material, a mixture of plural kinds of crude drugs or extracts of the above crude drugs exists. Therefore, in this absorbable article, as the herbal medicine material, a herbal medicine material in which a crude drug containing a water-soluble component or an extract of the crude drug is mixed with a crude drug having a lipophilic component or an extract of the crude drug is used. It is said. Even in such a case, in this absorbent article, the water-soluble component is dissolved in water and the lipophilic component is dissolved in the lipophilic solvent so that the components of the Chinese herbal medicine material can reach the wearer's skin more. Can be done. Therefore, even if the herbal medicine material is a herbal medicine material in which a plurality of herbal medicines or extracts of the herbal medicines are mixed, the herbal medicines or the extracts of the herbal medicines are not separated, and the components of each herbal medicine or the extract of each herbal medicine are used. It can be used effectively.

Hereinafter, the absorbent article according to the embodiment will be described by taking a sanitary napkin provided with a Chinese herbal medicine material as an example. However, the absorbent article is not limited to the example, and may be another absorbent article provided with a Chinese herbal medicine material as long as it does not deviate from the gist of the present invention. Such absorbent articles include, for example, common sanitary napkins, panty liners, incontinence pads, and disposable diapers with Chinese herbal materials.

(First embodiment)
The configuration of the sanitary napkin 1 according to the present embodiment will be described. 1 to 5 are diagrams showing a configuration example of the sanitary napkin 1 according to the present embodiment. FIG. 1 is a plan view showing a state where the individual wrapping sheet 41 of the sanitary napkin 1 is opened and unfolded. FIG. 2 is a cross-sectional view of the sanitary napkin 1 shown in FIG. 1 along the longitudinal center line CL (described later) (excluding the individual packaging sheet 41). FIG. 3 is a bottom view showing the sanitary napkin 1 (excluding the individually wrapped sheet 41). FIG. 4 is a schematic view showing the arrangement of the solvent layers 51a, 51b (described later) and the like on the liquid permeable sheet 7 of the sanitary napkin 1. FIG. 5 is a schematic diagram showing the arrangement of the solvent layers 50a, 52a (described later) and the like of the sanitary napkin 1. The sanitary napkin 1 has a longitudinal direction L, a width direction W, and a thickness direction T that are orthogonal to each other. In the sanitary napkin 1 drawn in FIG. 1, the upper side of the drawing is the front side (front side) or the ventral side of the longitudinal direction L, and the lower side of the figure is the rear side (rear side) or the dorsal side of the longitudinal direction L. Viewing the sanitary napkin 1 placed on a plane including the longitudinal direction L and the width direction W from above in the thickness direction T is referred to as "planar view", and the shape grasped in the plan view is referred to as "planar shape". Any direction in the plane including the longitudinal direction L and the width direction W is referred to as a "planar direction". When the wearer wears the sanitary napkin 1, the sides relatively close to and far from the skin surface of the wearer in the thickness direction T are referred to as "skin side" and "non-skin side", respectively. These definitions are also commonly used for each material of the sanitary napkin 1.

In the individual packaging sheet 41, both ends in the longitudinal direction L are longer in the longitudinal direction L than both ends in the longitudinal direction L of the sanitary napkin 1, and both ends in the width direction W are in the width direction of the sanitary napkin 1. It is longer in the width direction W than both ends of W. Therefore, when the sanitary napkin 1 is placed on the individual wrapping sheet 41, it is placed so as not to protrude to the outside of the individual wrapping sheet 41 in a plan view. As a result, when the sanitary napkin 1 is folded together with the individual wrapping sheet 41, the sanitary napkin 1 can be wrapped so as not to protrude from the outside of the individual wrapping sheet 41.

The sanitary napkin 1 is located on the front side (abdominal side) of the absorbent body 3 in the longitudinal direction L of the absorbent body 3, which mainly absorbs body fluid (exemplification: menstrual blood) that is a liquid excrement, and has a warm feeling on the skin. And a warming sensation main body 5 for perceiving. That is, the sanitary napkin 1 is divided into an absorption body 3 at the rear in the longitudinal direction L and a warmth body 5 at the front in the longitudinal direction L. The shape of the absorption body 3 is generally the shape of a general sanitary napkin, and includes a pair of

wing portions

17 and 17 extending to both outer sides in the width direction W. The shape of the warmth body 5 is not particularly limited, and examples thereof include triangles, rectangles, polygons (including cases with rounded corners and curved sides), circles and ellipses, shapes of living organisms, and theirs. Combinations can be mentioned. In another embodiment, the warmth main body 5 is located on the rear side (dorsal side) of the absorption main body 3 in place of the front side (ventral side) in the longitudinal direction L, or together with the front side (ventral side). In yet another embodiment, the pair of

wing portions

17, 17 does not exist. In yet another embodiment, the warming main body 5 is not provided.

The sanitary napkin 1 connects the longitudinal center line CL (imaginary line) extending through the center of the width direction W in the longitudinal direction L and the center of each of the pair of

wings

17, 17 in the longitudinal direction L in the width direction W. And a center line CW (virtual line) in the width direction. However, when the wing portion 17 does not exist, the width direction center line CW is a line extending in the width direction W through the center of the excretion port contact area 21 (described later) in the absorption main body 3 in the longitudinal direction L. In the present embodiment, both are assumed to match. Alternatively, when the absorber 11 is a so-called hourglass type, the width direction center line CW passes through a position (excluding both ends) where the dimension of the width direction W of the absorber 11 is minimized in the longitudinal direction L and becomes the width direction W. Let it be an extending line. In the sanitary napkin 1, the direction and the side toward the center line CL in the longitudinal direction are the inward and the inside of the width direction W, respectively, and the direction and the side away from it are the outward and the outside of the width direction W, respectively. On the other hand, the directions and sides toward the center line CW in the width direction are defined as inward and inside of the longitudinal direction L, respectively, and the directions and sides toward the distance L are defined as outward and outward in the longitudinal direction L, respectively. These definitions are also commonly used for each material of the sanitary napkin 1.

In the absorbent body 3, the sanitary napkin 1 includes a liquid-permeable sheet 7 that comes into contact with the wearer's skin during wearing, a liquid-impermeable sheet 9 that comes into contact with clothes (underwear) during wearing, a liquid-permeable sheet 7, and The absorber 11 is arranged between the liquid-impermeable sheets 9. Further, the sanitary napkin 1 has a liquid-permeable sheet 7 that comes into contact with the wearer's skin when worn, a liquid-impermeable sheet 9 that comes into contact with clothing when worn, a liquid-permeable sheet 7, and a liquid-permeable sheet 7 in the warmth body 5. The temperature-sensing agent holding sheet 13 disposed between the liquid impermeable sheets 9. The warming agent holding sheet 13 is located on the front side in the longitudinal direction L with respect to the absorber 11. The liquid permeable sheet 7 in the absorption main body 3 and the liquid permeable sheet 7 in the warm feeling main body 5 are integral sheets. The liquid impermeable sheet 9 of the absorbent body 3 and the liquid impermeable sheet 9 of the warming body 5 are integrated sheets. However, the integrated sheet includes not only the case where the material is a single sheet but also a sheet in which a plurality of sheets are combined and integrated. The absorber 11 in the absorbing body 3 and the warming agent holding sheet 13 in the warming body 5 are separate members. The overlapping portion 15 is formed by overlapping the front end portion of the absorber 11 in the longitudinal direction L with the rear end portion of the warming agent holding sheet 13 in the longitudinal direction L in the thickness direction T. That is, in the longitudinal direction L, the front edge 11E1 of the absorber 11 is located on the front side of the rear edge 13E2 of the warming agent holding sheet 13. In this case, in the overlapping portion 15, the end of the absorber 11 is arranged on the end of the warming agent holding sheet 13. This is to prevent leakage of body fluid in the front in the longitudinal direction L.

In another embodiment, when the function of warmth is emphasized, the end of the warming agent holding sheet 13 is arranged on the end of the absorber 11 in the overlapping portion 15. In yet another embodiment, the end portion of the absorber 11 and the end portion of the warming agent holding sheet 13 do not overlap in a plan view (the overlapping portion 15 does not exist), and the edges of the absorber 11 are in contact with each other. Or they are separated. In yet another embodiment, the position of the front edge 11E1 of the absorber 11 in the longitudinal direction L overlaps with or exceeds the position of the front edge 13E1 of the warming agent holding sheet 13 in the longitudinal direction L. Also exists on the outside. In other words, the warming agent holding sheet 13 overlaps the absorber 11 over the entire area in the longitudinal direction L. As yet another embodiment, the warming body 5 is replaced with a heat retaining body having the same shape, and the warming agent holding sheet 13 is replaced with a heat retaining sheet having the same shape that does not contain a warming agent.

The sanitary napkin 1 includes, in at least one of the absorbent body 3 and the warming body 5, a Chinese medicine material layer containing a Chinese medicine material having a water-soluble component and a lipophilic component, and a solvent layer containing a lipophilic solvent. .. In the present embodiment, the sanitary napkin 1 includes, in the absorbent body 3, a Chinese medicine material layer 45 containing a Chinese medicine material having a water-soluble component and a lipophilic component, and a solvent layer 51a containing a lipophilic solvent. The Chinese herbal medicine material layer 45 has a substantially rectangular shape in a plan view, and is located on the surface or inside of the absorber 11 on the skin side in the thickness direction T. The Chinese herbal medicine material layer 45 is located on both sides of the longitudinal center line CL and on both sides of the width direction center line CW in a plan view, that is, in the width direction W and the longitudinal direction in the absorption body 3. It is located in the central region of L. In the present embodiment, all or a part of the Chinese herbal medicine material layer 45 is located in a region including the excretion opening contact area 21 (described later) in a plan view. In another embodiment, the Chinese herbal medicine material layer 45 is located on the non-skin side surface of the liquid permeable sheet 7 in the thickness direction T. The planar shape of the Chinese herb material layer 45 is arbitrary.

The solvent layer 51a has a plurality of stripe shapes extending in the longitudinal direction L and arranged at predetermined intervals in the width direction W in a plan view, and is formed on the non-skin side surface of the liquid permeable sheet 7 in the thickness direction T. To position. A part of the Chinese medicine material layer 45 and a part of the solvent layer 51a overlap in the thickness direction T, and a part of the Chinese medicine material layer 45 is located on the non-skin side of a part of the solvent layer 51a. A part of the Chinese herbal medicine material layer 45 and a part of the solvent layer 51a are in direct contact with the thickness direction T from the viewpoint that the lipophilic component is easily eluted into the lipophilic solvent. The solvent layer 51a extends outward in the longitudinal direction L and outward in the width direction W from the Chinese herbal medicine material layer 45 in a plan view from the viewpoint that the lipophilic component easily comes into contact with the lipophilic solvent. In the sanitary napkin 1, there is a region VM1 in which a part of the Chinese medicine material layer 45 and a part of the solvent layer 51a do not overlap in the thickness direction T, that is, a region where the Chinese medicine material exists but no lipophilic solvent exists. .. This is because the water-soluble components of the Chinese herbal medicine can be easily eluted into water such as body fluids and sweat. As another embodiment, when the Chinese herb material layer 45 is located on the non-skin side surface of the liquid permeable sheet 7 in the thickness direction T, the solvent layer 51a is used in the thickness direction T. It is located on the skin side of the Chinese herbal medicine material layer 45 in. The planar shape of the solvent layer 51a is arbitrary.

The sanitary napkin 1 further includes a solvent layer 52a containing a lipophilic solvent in the absorbent body 3. The solvent layer 52a has a plurality of stripe shapes extending in the longitudinal direction L and arranged at predetermined intervals in the width direction W in a plan view, and in the thickness direction T, the non-skin side and the absorber 11 of the Chinese medicine material layer 45. Located on the skin-side surface or inside. A part of the Chinese medicine material layer 45 and a part of the solvent layer 52a overlap in the thickness direction T, and a part of the Chinese medicine material layer 45 is located on the skin side of a part of the solvent layer 52a. A part of the Chinese herbal medicine material layer 45 and a part of the solvent layer 52a are in direct contact with the thickness direction T from the viewpoint that the lipophilic component is easily eluted into the lipophilic solvent. The solvent layer 52a extends outward in the longitudinal direction L and outside the width direction W from the Chinese herbal medicine material layer 45 in a plan view from the viewpoint that the lipophilic component easily comes into contact with the lipophilic solvent. In the sanitary napkin 1, there is a region VM2 in which a part of the herbal medicine material layer 45 and a part of the solvent layer 52a do not overlap in the thickness direction T, and thus there is a region where the herbal medicine material exists but no lipophilic solvent exists. .. This is because the water-soluble components of the Chinese herbal medicine can be easily eluted into water such as body fluids and sweat. The planar shape of the solvent layer 52a is arbitrary.

In another embodiment, either the solvent layer 51a or the solvent layer 52a is provided and the other is not provided. In yet another embodiment, the Chinese herbal medicine material layer 45 (a part) and at least one of the solvent layer 51a (a part) and the solvent layer 52a (a part) are on the non-skin side of the liquid permeable sheet 7. On the surface and / or on the surface or inside of the absorber 11 on the skin side, it is located in substantially the same range in the thickness direction T. In that case, it can be said that a part of the Chinese herbal medicine material layer 45, a part of the solvent layer 51a, and at least one of a part of the solvent layer 52a overlap in the plane direction (longitudinal direction or width direction). Examples of such a state include a state in which one of a part of the Chinese herbal medicine material layer 45 and a part of the solvent layer 51a (, 52a) is embedded in the other.

The sanitary napkin 1 includes, in the warming sensation body 5, another Chinese medicine material layer 47 containing a Chinese medicine material having a water-soluble component and a lipophilic component, and another solvent layer 51b containing a lipophilic solvent. The Chinese herbal medicine material layer 47 has a plurality of stripe shapes extending in the longitudinal direction L and arranged at predetermined intervals in the width direction W, and is located on the surface or inside of the warming agent holding sheet 13 on the skin side in the thickness direction T. To do. The Chinese herbal medicine material layer 47 is formed in the central region of the warming agent holding sheet 13 in the width direction W in a plan view over the edges of both ends in the longitudinal direction L. In another embodiment, the Chinese herbal medicine material layer 47 is located on the non-skin side surface of the liquid permeable sheet 7 in the thickness direction T. The Chinese medicine material layer 47 has an arbitrary planar shape.

The solvent layer 51b has a plurality of stripe shapes extending in the longitudinal direction L and arranged at predetermined intervals in the width direction W, and is located on the non-skin side surface of the liquid permeable sheet 7 in the thickness direction T. In the width direction W, the width of the solvent layer 51b is larger than the width of the Chinese herb material layer 47. A part of the Chinese medicine material layer 47 and a part of the solvent layer 51b overlap in the thickness direction T, and a part of the Chinese medicine material layer 47 is located on the non-skin side of a part of the solvent layer 51b. A part of the Chinese herbal medicine material layer 47 and a part of the solvent layer 51b are in direct contact with the thickness direction T from the viewpoint that the lipophilic component is easily eluted into the lipophilic solvent. There is a region where a part of the Chinese medicine material layer 47 and a part of the solvent layer 51b do not overlap in the thickness direction T, that is, a region where the Chinese medicine material exists but the lipophilic solvent does not exist. This is because the water-soluble components of the Chinese herbal medicine can be easily eluted into water such as body fluids and sweat. As another embodiment, when the Chinese herbal medicine material layer 47 is located on the non-skin side surface of the liquid permeable sheet 7 in the thickness direction T, the solvent layer 51b is used in the thickness direction T. It is located on the skin side of the Chinese herbal medicine material layer 47 in. The planar shape of the solvent layer 51b is arbitrary.

The sanitary napkin 1 further includes a solvent layer 50a containing a lipophilic solvent in the warmth body 5. The solvent layer 50a is a non-skin side of the Chinese medicine material layer 47 in the thickness direction T in the area excluding both ends in the width direction W of the warming agent holding sheet 13 in plan view and the skin of the warming agent holding sheet 13. Located on the side surface or inside. A part of the Chinese medicine material layer 47 and a part of the solvent layer 50a overlap in the thickness direction T, and a part of the Chinese medicine material layer 47 is located on the skin side of a part of the solvent layer 50a. A part of the Chinese herbal medicine material layer 47 and a part of the solvent layer 50a are in direct contact with the thickness direction T from the viewpoint that the lipophilic component is easily eluted into the lipophilic solvent. The solvent layer 50a extends outward in the width direction W from the Chinese herbal medicine material layer 47 in a plan view from the viewpoint that the lipophilic component easily comes into contact with the lipophilic solvent. In another embodiment, the sanitary napkin 1 has a region in which a part of the Chinese medicine material layer 47 and a part of the solvent layer 50a do not overlap in the thickness direction T, that is, the Chinese medicine material exists but the lipophilic solvent is used. There is an area that does not exist. This is because the water-soluble components of the Chinese herbal medicine can be easily eluted into water such as body fluids and sweat. The planar shape of the solvent layer 50a is arbitrary.

In another embodiment, it has either the solvent layer 51b or the solvent layer 50a, and does not have the other. In yet another embodiment, at least one of the Chinese herbal medicine material layer 47 (a part), the solvent layer 51b (a part) and the solvent layer 50a (a part) is on the non-skin side of the liquid permeable sheet 7. On the surface and / or on the surface or inside of the warming agent holding sheet 13 on the skin side, they are located in substantially the same range in the thickness direction T. In that case, it can be said that a part of the Chinese herbal medicine material layer 47, a part of the solvent layer 51b, and at least one of a part of the solvent layer 50a overlap in the plane direction (longitudinal direction or width direction). Examples of such a state include a state in which one of a part of the Chinese herbal medicine material layer 47 and a part of the solvent layer 51b (, 50a) is embedded in the other. The sanitary napkin 1 may have at least one of the Chinese medicine material layer 45 and the Chinese medicine material layer 47.

In the present embodiment, the range of the longitudinal direction L in the absorption body 3 is the range from the rear edge of the sanitary napkin 1 to the front edge 11E1 of the absorber 11. On the other hand, the range of the warm feeling main body 5 in the longitudinal direction L is the range from the front edge 11E1 of the absorber 11 to the front edge of the sanitary napkin 1. In addition, the range in the width direction W of the absorbent body 3 and the warming body 5 is the entire width. In this case, it can be said that the overlapping portion 15 is included in the absorbing main body 3, and the rear end of the warming agent holding sheet 13 of the warming main body 5 in the longitudinal direction L extends into the absorbing main body 3. Further, in the longitudinal direction L, the absorption body 3 has a front region 3a from the width direction center line CW to the front edge 11E1 of the absorber 11, and from the width direction center line CW to the rear edge of the sanitary napkin 1. And a rear region 3b of the. However, the front and rear edges of the sanitary napkin 1, the front and rear edges 11E1, 11E2 of the absorbent body 11, and the front and rear edges 13E1, 13E2 of the warming agent holding sheet 13 in the longitudinal direction L are , Are both the outermost positions in the longitudinal direction L. In the present embodiment, the edge edges 11E1 and 11E2 and the edge edges 13E1 and 13E2 are all intersections with the longitudinal center line CL.

In the present embodiment, in the sanitary napkin 1, in the absorbent body 3, the excretory opening contact area 21 is located in the center in the width direction W slightly in the center in the longitudinal direction L and in the center in the width direction W in the plan view, and other than that in the periphery thereof. The non-excretion opening contact area 23 is located as the area. The excretion port contact area 21 is an area that faces or contacts the excretion port of the wearer when the sanitary napkin 1 is worn. The excretory opening contact area 21 is determined according to the type and application of the absorbent article. The excretion port contact area 21 has a length of about 1/4 to 2/3 of the total length of the absorber 11 in the longitudinal direction L, slightly forward of the center of the absorber 11 in the longitudinal direction L, and is set in the width direction W. At about the center of the absorber 11, a width of about 1/3 to 3/4 of the entire length of the absorber 11 in the width direction W is set. When the pair of

wing parts

17, 17 is present as in the present embodiment, the excretory opening contact area 21 of the excretion contact area 21 is formed on the line connecting the centers of the pair of

wing parts

17, 17 in the longitudinal direction L in the width direction W. The center of the longitudinal direction L is located. Alternatively, when the absorber 11 is a so-called hourglass type, the length L of the excretion port contact area 21 is located at the position where the dimension of the width direction W of the absorber is the smallest except for both ends of the absorber in the longitudinal direction L. The center of is located. However, misalignment within a predetermined length range shall be allowed. The predetermined length is 5% of the length of the absorbent body 11 in the longitudinal direction L.

The liquid permeable sheet (sheet member) 7 overlaps the absorber 11 in the thickness direction T, and forms a surface sheet 7a and a pair of

side sheets

7b, 7b bonded to both sides of the surface sheet 7a in the width direction W. I have. The dimension of the surface sheet 7a in the width direction W is approximately the same as the dimension of the absorber 11 in the width direction W. Each side sheet 7b is located at the inner end of the width direction W and includes a leak-proof wall 7W extending along the longitudinal direction L. That is, the liquid permeable sheet 7 includes a pair of

leakproof walls

7W and 7W. Each leak-proof wall 7W has an outer edge as a fixed end and an inner edge as a free end in the width direction W, and extends above the thickness direction T of the surface sheet 7a. .. The pair of leak-

proof walls

7W and 7W are formed so that their free ends can stand upright toward the skin when the sanitary napkin 1 is attached. The pair of leak

preventive walls

7W, 7W are formed on the absorbent body 3 and the warming sensation body 5 to prevent body fluid from mainly leaking to the outside in the width direction W and to prevent the warmth feeling body 5 from feeling warm. Due to the effect, the warmed air is suppressed from escaping to the outside in the width direction W and is retained.

In another embodiment, each of both ends of the surface sheet 7a in the width direction W includes a leakage-proof wall 7W extending along the longitudinal direction L. In yet another embodiment, the liquid permeable sheet 7 does not have the pair of

side sheets

7b and 7b. In still another embodiment, the liquid-permeable sheet 7 does not have the pair of leak

preventive walls

7W, 7W. In yet another embodiment, the liquid permeable sheet 7 abuts on the non-skin side of the surface sheet 7a and thus overlaps the absorber 11 in the thickness direction T to diffuse the body fluid in the plane direction (sheet). A member) is provided. In yet another embodiment, the surface sheet 7a is located between a plurality of convex portions extending continuously or intermittently along the longitudinal direction L and convex portions adjacent to each other, and is continuously or continuously or along the longitudinal direction L. And a plurality of recesses that extend intermittently.

The absorber 11 includes an absorption core (not shown) and a core wrap (not shown) that encloses the absorption core. The absorber 11 is divided into a central region 62 located substantially in the center in the longitudinal direction L, a front region 61 adjacent to the front of the central region 62, and a rear region 63 adjacent to the rear of the central region 62. .. Here, the central region 62 corresponds to the excretion port contact area 21 and is located in a range further forward in the longitudinal direction L. The Chinese medicine material layer 45 is located in the central region 62. The basis weight of the central area 62 is higher than the basis weights of the front area 61 and the rear area 63. Therefore, in the absorber 11, the basis weight of the region on the front side in the longitudinal direction L from the center line CW in the width direction is higher than the basis weight in the region on the rear side of the longitudinal direction L than the center line CW in the width direction. That is, in the absorber 11, the basis weight of the region from the width direction center line CW to the front edge 11E1 in the longitudinal direction L is the basis weight of the region from the width direction center line CW to the rear edge 11E2 in the longitudinal direction L. Higher than the amount. As a result, the amount of absorption in the excretory opening contact area 21 slightly forward of the center in the longitudinal direction L is increased, and the excretory opening of the wearer is slightly displaced forward of the excretory opening contact area 21 in the longitudinal direction L. Even when the sanitary napkin 1 is attached in this state, the absorber 11 can reliably absorb the body fluid. In another embodiment, the basis weight of the absorber 11 is high in a specific portion different from the above, or is substantially constant in the entire region. In another embodiment, the absorbent body 11 does not use core wrap.

The warming agent holding sheet 13 (functional layer; warming member) is composed of a single layer or a plurality of layers such as a non-woven fabric, and contains the warming agent 50 (functional agent). The shape of the warming agent holding sheet 13 is not particularly limited as long as it can be arranged inside the peripheral portion 27 of the sanitary napkin 1 that suppresses the leakage of the warming agent 50, and for example, the shape of the warming body 5 is similar. A reduced shape can be mentioned. The warming agent 50 stimulates the temperature receptors (thermosensory receptors) on the skin without heating the body or the vicinity of the wearer of the sanitary napkin 1, and causes the wearer to perceive warmth. It contains a sensory component and further contains a solvent component that dissolves or disperses the warmth component. The warming agent 50 contains a fluid component or a volatile component that can move from the arranged place due to the influence of temperature, atmospheric pressure, external force, etc. in the form of a gas or a liquid, and for example, at least one of the warming component and the solvent component is contained. Contains fluid or volatile components. Then, even if the warming agent holding sheet 13 is arranged on the non-skin side of the liquid permeable sheet 7, the warming agent 50 of the warming agent holding sheet 13 elutes or volatilizes, for example, when the sanitary napkin 1 is worn. As a result, the liquid-permeable sheet 7 can be transmitted to contact the skin of the lower abdomen of the wearer. Thereby, the warming component of the warming agent 50 stimulates the thermal sensory receptor of the skin, and can give a warm feeling to the lower abdomen of the wearer. In the present embodiment, the solvent component of the warming agent 50 and (the solvent component of) the solvent layer 50a are the same. Therefore, the warming agent 50 is present at the position where the solvent layer 50a is present. By sharing both solvent components, the distance between the Chinese herbal medicine material layer 47 and the warming agent 50 and the wearer's skin surface can be shortened, and the thickness can be reduced to improve the wearing feeling.

In the present embodiment, the warming agent 50 is located in the warming agent holding sheet 13 in the longitudinal direction L in a range similar to or slightly larger than the width of the surface sheet 7a (or the absorber 11) in the width direction W in a plan view. Then, it is arranged in the range between both ends. In another embodiment, the warming agent 50 is arranged over the entire central portion 25 of the warming agent holding sheet 13 excluding the peripheral portion in a plan view. As a result, the effect of the warming agent 50 extends to a wider area. In still another embodiment, the warming agent 50 is disposed on the entire warming agent holding sheet 13 including the peripheral portion in a plan view. In yet another embodiment, the warming agent 50 extends in the longitudinal direction L and is arranged in a plurality of stripes arranged at predetermined intervals in the width direction W. It is possible to easily apply a warming agent. In yet another embodiment, the warming agent 50 does not contain a solvent component. In yet another embodiment, the warming body 5 has a support sheet that supports the warming agent holding sheet 13 on the non-skin side of the warming agent holding sheet 13. In yet another embodiment, the warming body 5 does not contain the warming agent 50 in the warming agent holding sheet 13, so that the warming agent holding sheet 13 keeps the lower abdomen warm as a heat retaining sheet. In this case, the solvent layer 50a is separately formed. The planar shape of the warming agent 50 is arbitrary.

In the present embodiment, the absorber 11 includes the warming sensation agent 52 (functional agent). The warming agent 52 is arranged on a plurality of striped (continuous or intermittent) portions extending in the longitudinal direction L and arranged in the width direction W on the skin-side surface of the absorber 11. In this case, the range in the width direction W in which the warming agent 52 is arranged is approximately within the range in the width direction W of the topsheet 7a. The warming sensation agent 52 is different from the warming sensation agent 50 in the position where it is arranged, but has the same property. In another embodiment, the warming agent 52 is placed at yet another location on the absorber 11, such as the surface or interior on the non-skin side. In yet another embodiment, the absorber 11 does not contain the warming agent 52. In this embodiment, the solvent component of the warming agent 52 and the solvent layer 52a (solvent component thereof) are the same. Therefore, the warming agent 52 is present at the position where the solvent layer 52a is present. By sharing both solvent components, the distance between the Chinese herbal medicine material layer 45 and the warming agent 52 and the wearer's skin surface can be shortened, and the thickness can be reduced to improve the wearing feeling.

In the present embodiment, the liquid permeable sheet 7 (sheet member) contains a warming agent 51 (functional agent). The warming agent 51 is arranged on a plurality of striped (continuous or intermittent) portions extending in the longitudinal direction L and arranged in the width direction W on the non-skin side surface of the liquid permeable sheet 7. In this case, the range of the width direction W in which the warming agent 51 is arranged is generally within the range of the width direction W of the absorber 11. The warming sensation agent 51 is different in position from the warming sensation agent 50, but has the same property. In another embodiment, the warming agent 51 is placed at yet another location on the liquid permeable sheet 7, such as the skin-side surface. In yet another embodiment, the liquid permeable sheet 7 does not include the warming agent 51. In the present embodiment, the solvent component of the warming agent 51 and the solvent layer 51a (solvent component) and the solvent layer 51b (solvent component) are the same. Therefore, the warming sensation agent 51 exists at the position where the solvent layers 51a and 51b exist. By sharing these solvent components, the distance between the Chinese herbal medicine material layers 45 and 47 and the warming agent 51 and the wearer's skin surface can be shortened, and the thickness can be reduced to improve the wearing feeling.

In the present embodiment, the warming components of the warming agent 50, the warming agent 51, and the warming agent 52 are the same as each other. In another embodiment, at least one of the warming agents 50, the warming agent 51, and the warming agent 52 is different from the rest. Further, in the present embodiment, the solvent components of the warming agent 50, the warming agent 51, and the warming agent 52 are the same as each other. In another embodiment, at least one of the solvent components of the warming agent 50, the warming agent 51, and the warming agent 52 is different from the rest. Further, in another embodiment, at least one of the warming components of the warming agent 50, the warming agent 51, and the warming agent 52 generates heat by itself, and the wearer of the sanitary napkin 1 wears it. Contains a heat-generating component that heats the body or its vicinity. When the sanitary napkin 1 has a warming agent, it may contain at least one of the warming agent 50, the warming agent 51, and the warming agent 52.

In the sanitary napkin 1, the liquid impermeable sheet 9 (second sheet member) is a sheet that overlaps with the absorber 11 in the thickness direction T and has liquid impermeable. In another embodiment, the liquid impermeable sheet 9 is not breathable (non-breathable). Therefore, the sanitary napkin 1 has a structure that makes it difficult for air existing in the region closer to the skin than the liquid impermeable sheet 9 to escape to the non-skin side of the liquid impermeable sheet 9, that is, to the outside of the sanitary napkin 1. It has become. In other words, the sanitary napkin 1 has a structure in which it is difficult for the air warmed by the effect of warmth to escape to the outside of the sanitary napkin 1.

The sanitary napkin 1 is provided with an adhesive portion for fixing the sanitary napkin 1 to the wearer's clothes in both the absorption body 3 and the warmth body 5. One surface of the adhesive portion is fixed to the liquid-impermeable sheet 9, and the other surface is temporarily fixed to the individually wrapped sheet 41 of the sanitary napkin 1. Of these, the absorption body 3 is arranged in a region overlapping the absorber 11 in a plan view, for example, an adhesive portion 73 extending along the longitudinal direction L and intermittently arranged in the width direction W, and the width of the wing portion 17. An adhesive portion 71 extending along the longitudinal direction L is arranged at a substantially central portion in the direction W. On the other hand, in the warming sensation body 5, the adhesive portions 72 are arranged in the regions at both ends in the width direction W. In another embodiment, the other surface of the adhesive portion is temporarily fixed to the release sheet fixed to the individual wrapping sheet 43.

As shown in FIG. 1, the individual wrapping body (sanitary napkin 1+individual wrapping sheet 41) has a longitudinal first fold line F1 (example: left fold line) and a longitudinal second fold line F2 (example: right fold line). , The width direction first folding line F3 (example: front folding line) and the width direction second folding line F4 (example: rear folding line). The first folding line F1 in the longitudinal direction and the second folding line F2 in the longitudinal direction extend along the longitudinal direction L and are arranged in parallel with each other from one side in the width direction W to the other side at predetermined intervals. The first folding line F3 in the width direction and the second folding line F4 in the width direction extend along the width direction W and are arranged in parallel with each other from one side in the longitudinal direction L to the other side at predetermined intervals. That is, there are two longitudinal fold lines and two width fold lines. However, the first folding line F3 in the width direction is arranged in front of the sanitary napkin 1, and the second folding line F4 in the width direction is arranged behind the sanitary napkin 1. The first folding line F3 in the width direction is located at the front end of the absorption main body 3 and the rear end of the warmth main body 5. Specifically, the first folding line F3 in the width direction is located on the CW side of the center line in the width direction from the front edge 11E1 in the longitudinal direction L of the absorber 11. The first folding line F3 in the width direction and the second folding line F4 in the width direction are located on the front side and the rear side in the longitudinal direction L from the excretion port contact area 21 so as to avoid the excretion port contact area 21. In another embodiment, there is no longitudinal polygonal line. In still another embodiment, the number of folding lines in the width direction is 1 or 3 or more.

Then, when the sanitary napkin 1 is individually wrapped, the portion (a pair) outside the width direction W with respect to the first folding line F1 in the longitudinal direction and the second folding line F2 in the longitudinal direction as the base axis together with the individual packaging sheet 41. (The outer part of each) is folded toward the surface on the skin side. Next, in the sanitary napkin 1 folded together with the individual wrapping sheet 41, the outer portion in the longitudinal direction L from both fold lines is the surface on the skin side with the width direction first fold line F3 and the width direction second fold line F4 as the basic axes. Folds towards. Then, one end of the individual wrapping sheet 41 is fixed to the individual wrapping sheet 41 facing it with a fixing tape 43. Thereby, the individual package of the sanitary napkin 1 is formed. Then, the sanitary napkin 1 is opened when it is used, that is, when the individual packaging is opened, in the reverse order of the procedure when the individual packaging is opened.

Moreover, the sanitary napkin 1 has a plurality of squeezing

portions

31 and 33. The plurality of pressing portions 31 are arranged in a curved shape, continuously or intermittently, mainly in the absorption main body 3 so as to surround the excretion port contact area 21. The plurality of pressing portions 33 are arranged in the absorption main body 3 in a dot-like manner in a region surrounded by the plurality of pressing portions 31. The squeezed

portions

31 and 33 are formed by squeezing the liquid permeable sheet 7 and the absorber 11 (the warming agent holding sheet 13 in the overlapping portion 15) from the skin side to the non-skin side. The shapes and arrangements of the plurality of

pressing portions

31, 33 are arbitrary. In another embodiment, the warmth body 5 is further formed by squeezing the liquid permeable sheet 7 and the warming agent holding sheet 13 (further absorber 11 in the overlapping portion 15) from the skin side to the non-skin side. It is provided with one or more pressing parts. The shape of the pressed part is arbitrary.

Further, the sanitary napkin 1 has a seal portion 29. The sealing portion 29 joins and seals the liquid permeable sheet 7 and the liquid impermeable sheet 9 at the peripheral portion 27 thereof by a known method such as heat sealing. In the sanitary napkin 1, the non-skin side surface of the liquid permeable sheet 7 and the skin side surface of the absorber 11 and the warming agent holding sheet 13 are joined with an adhesive (example: hot melt adhesive) or the like. The non-skin side surface of the absorber 11 and the warming agent holding sheet 13 and the skin side surface of the liquid impermeable sheet 9 are joined with an adhesive (same as above) or the like.

In the sanitary napkin 1, the Chinese medicine material having the water-soluble component and the lipophilic component of the Chinese medicine material layer 45 (, 47) and the lipophilic solvent of the solvent layer 51a (, 51b) are in the thickness direction T (another embodiment). In the form, the plane direction is also possible. Hereinafter, it is also referred to as “thickness direction T or the like”), and is located on at least one of the absorber 11 and the liquid permeable sheet 7. Therefore, in the region where the lipophilic solvent overlaps with the lipophilic solvent in the thickness direction T or the like, the body fluid is excreted in the sanitary napkin 1, and when it migrates and diffuses in the liquid permeable sheet 7 and the absorber 11, the body fluid of the body fluid Some go through herbal ingredients and lipophilic solvents. As a result, as the body fluid flows and migrates and diffuses, the lipophilic solvent also migrates and diffuses, so that it comes into contact with at least a part of the Chinese herbal medicine material. Thereby, the lipophilic component of the herbal medicine material can be dissolved in the lipophilic solvent. Then, the lipophilic solvent containing the lipophilic component diffuses or volatilizes, so that the lipophilic solvent can reach the wearer's skin. Alternatively, in a state where the lipophilic solvent containing the lipophilic component is contained in water such as body fluid or sweat, for example, in a state where the water is contained in an oil film on the substantially surface of the water, the water becomes steam or is used for sanitary purposes. By the body pressure applied to the napkin 1, the oil-based solvent can reach the wearer's skin together with water by diffusing so as to return to the skin side. That is, the lipophilic component of the Chinese herb material can reach the skin of the wearer.

On the other hand, in the region VM1 or the like where the Chinese herbal medicine material of the Chinese herbal medicine material layer 45 (, 47) does not overlap with the lipophilic solvent of the solvent layer 51a (, 51b) in the thickness direction T, etc. When migrating and diffusing through the liquid permeable sheet 7 and the absorber 11, a part of the body fluid reaches the Chinese herbal medicine material without passing through a lipophilic solvent. Alternatively, sweat or the like released from the skin diffuses in the liquid permeable sheet 7 and reaches the herbal medicine material. That is, the water such as body fluid and sweat flows, migrates and diffuses, and comes into contact with the Chinese herbal medicine material. As a result, the water-soluble components of the Chinese herbal medicine material can be dissolved in water such as body fluids and sweat. At that time, since the lipophilic solvent does not exist in the vicinity, it is possible to prevent the lipophilic solvent from covering the Chinese herbal medicine material and making it difficult for water to reach the Chinese herbal medicine material. Then, the water containing the water-soluble component becomes steam or diffuses to the skin side due to the body pressure applied to the sanitary napkin 1, so that the water containing the water-soluble component is transferred to the wearer's skin. Can be reached. That is, the water-soluble component of the herbal medicine material can reach the skin of the wearer.

Here, even if there is only one kind of crude drug or an extract of the crude drug (hereinafter, also referred to as "herbal medicine, etc.") contained in the herbal medicine material, not only the (water-soluble) component that the crude drug, etc. is easily compatible with water, but also It may contain (lipophilic) ingredients that are easily compatible with oil. In addition, there are multiple types of crude drugs and the like contained in Chinese herbal medicine materials, and these multiple types of crude drugs and the like are not only crude drugs and the like that have components that are easily water-soluble (water-soluble), but are also easily oil-friendly (lipophilic). It may include crude drugs, etc. that have ingredients. Even if the sanitary napkin 1 containing such a Chinese medicine material, that is, the sanitary napkin 1 containing both water-soluble and lipophilic components, the Chinese medicine material is lipophilic and water-soluble as described above. Both components can be easily reached on the wearer's skin.

As a result, in the sanitary napkin 1, not only the water-soluble component of the Chinese herbal material but also the lipophilic component can easily reach the wearer's skin, and the effect of the Chinese herbal material, for example, blood flow and blood circulation. It can exert the effect of improving the body and warming the body.

Next, a preferable method of using the sanitary napkin 1 according to the present embodiment will be described.
When the wearer wears the sanitary napkin 1, the sanitary napkin 1 is worn (example: shorts) so that the excretion port contact area 21 of the absorber 11 of the absorption body 3 corresponds to the wearer's excretion port. Fix. As a result, the sanitary napkin 1 is fixed to the clothing so that the warming agent holding sheet 13 of the warming body 5 corresponds to the lower abdomen of the wearer, the Chinese medicine material layer 45 of the absorbing body 3 corresponds to the excretion port, and so on. .. Then, the sanitary napkin 1 is in a state where the skin-side surface of the warmth body 5 is in contact with the skin of the wearer's lower abdomen and the skin-side surface of the absorption body 3 is in contact with the skin near the excretion port of the wearer. used.

In other words, in the sanitary napkin 1, when the absorption body 3 is arranged on the clothes so that the excretion port contact area 21 of the absorber 11 abuts on the wearer's excretion port, the warming agent holding sheet 13 is attached to the wearer. It has a shape such that it is arranged at a position corresponding to the lower abdomen. Therefore, the distance between the excretion port contact area 21 of the absorber 11 of the absorption body 3 and the warming agent holding sheet 13 of the warmth body 5 is the distance between the wearer's excretion port and the lower abdomen (on the skin surface). Distance) is approximately equal to.

In the present embodiment, the warming agent 50 (functional agent) of the warming agent holding sheet 13 contains a warming component that activates the TRP channel and a solvent component. Therefore, when the sanitary napkin 1 is fixed to the clothes and used, the warming agent 50 contained in the warming agent holding sheet 13 permeates the liquid permeable sheet 7 and comes into contact with the wearer's skin. It is possible to efficiently activate the TRP channel of the warming agent contact portion in contact with the warming component on the wearer's skin, and efficiently impart warmth to the wearer's lower abdomen.

By imparting a warm feeling to the wearer's lower abdomen, the TRP channel of the warming agent contact portion that was in contact with the warmth component in the skin of the wearer's lower abdomen is activated, and as a result, via the sympathetic nervous system. It can be expected that heat is generated from the contact portion of the warming sensation agent and the temperature of the contact portion of the warming sensation component on the skin of the wearer is raised. As a result, it is expected to warm the part of the wearer near the uterus, discharge the pain substance prostaglandin, and relieve the wearer's menstrual pain. By warming the part near the wearer's uterus, it is expected to reduce the wearer's premenstrual syndrome, coldness, and menopause. By promoting blood circulation (promoting lymphatic flow), waste products are discharged, coldness is improved, fat burning is improved, and immunity is improved. When the effect of the Chinese herbal medicine material is an effect of warming the body by improving blood flow and blood circulation, the sanitary napkin 1 can further warm the body by the synergistic effect of the warming agent and the Chinese herbal medicine material.

In the present embodiment, as a preferred mode, the solvent layer 51a is located on the skin side of the Chinese medicine material layer 45. Therefore, when the body fluid is excreted in the sanitary napkin 1 and migrates/diffuses in the liquid permeable sheet 7 and the absorbent body 11, the body fluid and the lipophilic solvent can surely pass through the herbal medicine material. Therefore, the lipophilic component of the Chinese herbal medicine material can be dissolved by the lipophilic solvent, whereby the lipophilic component of the Chinese herbal medicine material can be made to reach the wearer's skin.

In the present embodiment, as a preferred embodiment, in addition to the solvent layer 51a being located on the skin side of the Chinese medicine material layer 45, the solvent layer 52a is further located on the non-skin side of the Chinese medicine material layer 45. Therefore, when the body fluid is excreted in the sanitary napkin 1 and migrates/diffuses in the liquid permeable sheet 7 and the absorbent body 11, the body fluid and the lipophilic solvent can more reliably pass through the herbal medicine material. Therefore, the lipophilic component of the herbal medicine material can be further dissolved in the lipophilic solvent, and thereby the lipophilic component of the herbal medicine material can further reach the wearer's skin.

The central portion of the sanitary napkin 1 in the width direction W abuts on the wearer's excretory opening and the region in the vicinity thereof, that is, the region of sensitive skin. Therefore, as a preferred embodiment in the present embodiment, the solvent layer 51a (, 52a) is not arranged at the central portion of the sanitary napkin 1 in the width direction W. That is, there is a region VM1 (, VM2) in which the lipophilic component of the Chinese herbal medicine material layer 45 is present, but the lipophilic solvent of the solvent layer 51a (, 52a) is not present. Therefore, it is possible to make it difficult to transfer the lipophilic component of the Chinese herbal medicine material to the region where the sensitive skin region abuts. Thereby, the lipophilic component of the Chinese herbal medicine material can reach the region other than the central portion in the width direction W of the sanitary napkin 1, and the component can be suppressed from directly reaching the sensitive skin region. In addition, it can be considered that a Chinese herbal medicine material (a water-soluble component) exists in the central portion of the sanitary napkin 1 in the width direction W, and the component easily migrates to the excretion port and the region in the vicinity thereof. However, since that region is a region where body fluid is directly excreted from the excretion port, the amount of the component transferred to the excretion port and the region in the vicinity thereof can be suppressed to some extent.

In the present embodiment, as a preferred embodiment, a warming agent 51 (or a warming agent 52) located on at least one of the absorber 11 and the liquid permeable sheet 7 and having a warming function is further provided. Therefore, air containing moisture such as sweat generated near the skin whose body temperature has risen due to the effect of the warming sensation agent 51 (or the warming sensation agent 52) causes the Chinese herbal medicine material to fluff and increases its surface area, It is possible to facilitate the release of the components of the Chinese herbal medicine material. Further, since the lipophilic solvent can be warmed by the air warmed by the effect of the warming agent 51 (or the warming agent 52), the components of the Chinese herbal medicine material dissolved in the lipophilic solvent can be made water and / or lipophilic. It can be easily volatilized with a solvent or alone. As a result, the components of the Chinese herbal medicine material can be made to reach the wearer's skin. Accordingly, when the effect of the Chinese herbal medicine material is the effect of improving blood flow and blood circulation and warming the body, the sanitary napkin 1 can further warm the body by the synergistic effect of the warming agent and the Chinese herbal medicine material.

In the present embodiment, as a preferred embodiment, in a plan view, the anterior side (ventral side) in the longitudinal direction L from the absorber 11 in the sanitary napkin 1 (in another embodiment, the posterior side (dorsal side) is also possible. It is further provided with a warming agent holding sheet 13 which is located on the front side (ventral side) and the like) and contains another warming agent 50 having a warming function. The liquid permeable sheet 7 extends from the absorber 11 to the front side (ventral side) in the longitudinal direction L and overlaps with the warming agent holding sheet 13 in the thickness direction T in a plan view, and holds the warming agent. It is located closer to the skin than the sheet 13. Therefore, when the sanitary napkin 1 is attached to the wearer, the portion on the ventral side of the wearer (or the dorsal side in another embodiment, hereinafter also referred to as “ventral side or the like”) is the warming agent 50. Can be warmed with. Therefore, the components of the Chinese herbal medicine material can reach the wearer's skin, and the ventral side can be warmed by another warming agent located on the anterior side (ventral side) or the like.

As another embodiment, the sanitary napkin 1 is located on at least one of the warming agent holding sheet 13 and the liquid permeable sheet 7, and contains another Chinese herb material having a water-soluble component and a lipophilic component. It includes a Chinese herbal medicine material layer 47, and another solvent layer 51b (, 50a) located on at least one of the warming agent holding sheet 13 and the liquid permeable sheet 7 and containing another lipophilic solvent. Then, a part of the other Chinese medicine material layer 47 and a part of the other solvent layer 51b (, 50a) overlap with each other in the thickness direction T or the like. That is, in the sanitary napkin 1, the other Chinese herbal medicine material and the other lipophilic solvent partially overlap in the thickness direction T or the like on the front side (ventral side) of the longitudinal direction L from the absorber 11 and the like. It is located on at least one of the warming agent holding sheet 13 and the liquid permeable sheet 7. Therefore, when the sanitary napkin 1 is worn on the wearer, the front side (ventral side) of the wearer is warmed with the warming agent 50, and the body temperature rises due to the effect of the warming agent 50 near the skin. Moist air, such as sweat, that is generated can swell other herbal ingredients, increase their surface area, and facilitate the release of other herbal ingredients. Further, since the lipophilic solvent can be warmed by the air warmed by the effect of the warming agent 50, the components of other Chinese herbal medicine materials dissolved in the lipophilic solvent can be mixed with water and / or the solvent, or alone. It can be easily volatilized. As a result, the components of other Chinese herbal materials on the anterior side in the longitudinal direction L can be made to reach the skin on the anterior side in the longitudinal direction of the wearer.

Further, as a preferred embodiment in the present embodiment, the warming

agents

50, 51, and 52 contain a warming component that causes the wearer to perceive a warming sensation and a solvent component that dissolves or disperses the warming sensation component, and is a solvent component. Is a lipophilic solvent. Therefore, the warming

sensitizers

50, 51, 52 (solvent components thereof) can be used as the

solvent layers

50a, 51a, 51b, 52a, and it is not necessary to separately provide the solvent layer, or the region or the thickness of the solvent layer. Can be reduced. As a result, the distance between the Chinese medicine material layers 45, 47 and/or the

warming agents

50, 51, 52 and the wearer's skin surface can be shortened, so that the Chinese medicine material layers 45, 47 and/or the

warming agents

50, 51 can be shortened. , 52 can be more easily reached by the wearer's skin.

As a Chinese herbal medicine, there are multiple kinds of crude drugs or a mixture of extracts of these crude drugs in order to enhance the medicinal effect. Therefore, as a preferred embodiment in the present embodiment, the herbal medicine material is a herbal medicine in which a crude drug containing a water-soluble component or an extract of the crude drug thereof and an extract of the crude drug having a lipophilic component or the crude drug thereof are mixed. Use. Even in such a case, in this absorbent article, the water-soluble component is dissolved in water such as body fluid and sweat, and the lipophilic component is dissolved in the lipophilic solvent, so that the components of the Chinese herbal medicine material are dissolved in the wearer. Can be reached by the skin. Therefore, even if the herbal medicine material is a herbal medicine in which a plurality of herbal medicines or extracts of the herbal medicines are mixed, the components of each herbal medicine or the extract of each herbal medicine can be obtained without separating the herbal medicines or the extracts of the herbal medicines. It can be used effectively.

In the sanitary napkin 1 of the present embodiment, as a preferred embodiment, in the longitudinal direction L, the distance between the widthwise center line CW and the front edge 11E1 of the absorber 11 is set to the front edge 11E1 of the absorber 11. , The front edge of the sanitary napkin 1 is longer than the distance. Therefore, in the region on the front side of the sanitary napkin 1 in the longitudinal direction L, a region of the absorber 11 capable of absorbing body fluid can be sufficiently secured in the longitudinal direction L. Therefore, when the sanitary napkin 1 having the warming main body 5 on the front side in the longitudinal direction L and the front side portion being relatively long is attached to the undergarment, the wearer should be aware of the protrusion of the front end, Even if the sanitary napkin 1 is attached to the rear side by shifting it more than necessary, the region of the absorber 11 can be sufficiently secured in the region on the front side of the sanitary napkin 1, so that the leakage of body fluid from the front side can be suppressed. ..

(Second embodiment)
The configuration of the sanitary napkin 1a according to the present embodiment will be described. The sanitary napkin 1a according to the present embodiment is different from the sanitary napkin 1 according to the first embodiment in that it does not have the warmth body 5. Briefly, the sanitary napkin 1a has a configuration in which the warming sensation body 5 is removed from the sanitary napkin 1. In the following, the differences between the sanitary napkin 1a and the sanitary napkin 1 will be mainly described.

6 to 9 are diagrams showing a configuration example of the sanitary napkin 1a according to the present embodiment. FIG. 6 is a plan view showing a state in which the sanitary napkin 1a is expanded. FIG. 7 is a sectional view taken along the longitudinal centerline CL of the sanitary napkin 1a shown in FIG. FIG. 8 is a schematic diagram showing the arrangement of the solvent layer 51a and the like in the liquid-permeable sheet 7 of the sanitary napkin 1a. FIG. 9 is a schematic diagram showing the arrangement of the solvent layer 52a and the like of the sanitary napkin 1a.

The Chinese medicine material layer 45a of the sanitary napkin 1a according to the present embodiment is arranged in the range from the one end to the other end of the absorbent body 11 in the longitudinal direction L and in the range overlapping the thickness direction T. It is different from the Chinese medicine material layer 45 of the sanitary napkin 1 according to one embodiment. By arranging the Chinese medicine material layer 45a in a longer range in the longitudinal direction L, the function of the Chinese medicine material can be further enhanced. In another embodiment, the Chinese medicine material layer 45a is arranged in the same manner as the Chinese medicine material layer 45 of the first embodiment. In another embodiment, the sanitary napkin 1a further includes a warming sensation body 5 similar to that in the first embodiment.

(Each material in sanitary napkin 1)
Next, each material and the like in the sanitary napkin 1 (including the sanitary napkin 1a. The same applies hereinafter) in each embodiment will be described.

In each of the above-described embodiments, the herbal medicine material layer 45 (, the herbal medicine material layer 45a) included in the sanitary napkin 1 contains a herbal medicine material having a water-soluble component and a lipophilic component, and a solvent layer (or other solvent). The layer) contains a lipophilic solvent.

Here, a herbal medicine material is a material containing a herbal medicine, and a herbal medicine is an agent containing a herbal medicine (prescription) and a herbal medicine. A crude drug is an agent having a medicinal component obtained by processing and adjusting a natural material (eg, plant, animal, mineral) by a specific method. Chinese herbal medicine is a combination of multiple crude drugs. And, the herbal medicine material may be a medically, pharmaceutically, or physiologically acceptable herbal medicine or an extract extracted from the herbal medicine, and the herbal medicines constituting the herbal medicine, the combination thereof, and the mixing ratio thereof There are no particular restrictions. As the herbal medicine materials, for example, the herbal medicines or herbal medicines described in “Guide for New Ornamental Chinese Herbal Prescription” (edited by Japan Herbal Medicine Preparation Association, published by Jiho Co., Ltd.) or extracted from these herbal medicines or herbal medicines Extracts are mentioned. Specifically, as Chinese herbal medicines, Keishibukuryogan, Kamiyoyosan, Tokishakuyakusan, Unkeito, Kyukigorihoto, Shakuyakukanzoto, Tokishigyakukago Rhubarb Ginger Hot, Peach Examples include unkeito, rhubarb peony skin, and gozumisan. Herbal medicines include Akyo (Atractylodes lanceolata), Gaiyou (Atractylodes lanceolata), Atractylodes lanceolata (Ginger), Atractylodes lanceolata (Ginger), Atractylodes lanceolata (Kikyou), Kijitsu (Atractylodes lanceolata), Keihi (Chenpi), Koboku (Atractylodes lanceolata), Goshuyu (Atractylodes lanceolata). ), Psycho (Shibahu), Saishin (Spicy), Sanshishi (Yamabiko), Jio (Jihuang), Shakuyaku (Crude drug), Ginger (Ginger), Senkyu, Soujutsu (Blue), Daiou (Daihuang), Taisou (Large) Natsume), Takusha (Sawataki), Chinpi (Chenpi), Tougashi (Fuyu Ginger), Touki (Toki), Tounin (Momojin), Carrot (Ginseng), Bakumondou (Wheat Gate Winter), Hacka (Light load), Hange (Half) (Summer), Byakushi, Byakujutsu (white 朮), Bukuryo (茯蓓), Ginger (Ginger), Buttonpi (Peony skin), Maou (Mao), Mokutsu (Kidori), etc. are examples.

The lipophilic (oil-soluble, fat-soluble) components in these Chinese herbal medicine materials are not particularly limited as long as they are soluble in the lipophilic solvent. Such lipophilic components include, for example, fat-soluble polyphenols and gingerol, shogaol, zingerone and the like. The fat-soluble polyphenols can be extracted from, for example, Angelica acutiloba, peony, and peony with a lipophilic solvent. Gingerol and the like (a component that warms the body) can be extracted from ginger, for example, with a lipophilic solvent.

On the other hand, there is no particular limitation on the water-soluble components in these Chinese herbal materials as long as they are soluble in water such as body fluids and sweat. Examples of such water-soluble components include water-soluble polyphenols and paeoniflorin. Water-soluble polyphenols can be extracted with water, for example, from Toki, river cucumber, and peony. Paeoniflorin (an analgesic ingredient) can be extracted with water from peony, for example.

The lipophilic solvent is not particularly limited as long as it can dissolve the lipophilic component of the Chinese herbal medicine material. Examples of the lipophilic solvent include fats and oils. Examples of fats and oils include natural oils such as vegetable oils and animal oils, hydrocarbons and the like. Examples of natural oils include fatty acid esters such as triglycerides, coconut oil, and linseed oil. Examples of the hydrocarbon include paraffin such as liquid paraffin. The lipophilic solvent does not necessarily have to be in a liquid state, and may be one that is individually arranged on any material of the sanitary napkin 1 or one that is volatile depending on the temperature. The lipophilic solvent is in a liquid state in the manufacturing process of the sanitary napkin 1, but may be in a solid state at the time of completion of the product of the sanitary napkin 1 and at the time of subsequent storage or sale. However, it should return to a liquid state due to an increase in ambient temperature due to body temperature or the like during use.

In each of the above embodiments, the warming agent holding sheet 13, the liquid permeable sheet 7, and the absorber 11 are a warming agent 50 containing a warming component and a solvent component that activate the TRP channel, and a warming sensation. The agent 51 and the warming sensation agent 52 are included.

The warming

agents

50, 51, 52 include, for example, a warming component and a solvent component that activate TRP channels (temperature receptors (heat sensory receptors)). The warming component is not particularly limited as long as it activates the TRP channel, and examples thereof include an agonist for the TRPV1 receptor and an agonist for the TRPV3 receptor, and an agonist for TRPV1 is preferable. This is because the TRPV1 receptor has a high activation temperature threshold of more than 43 ° C. and can give a high warmth to the wearer.

❖ The warming ingredient is preferably a plant-derived compound from the perspective of the wearer's sense of security. Examples of the warming component include capsicoside, capsaicin, capsaicinoids (dihydrocapsaicin, nordihydrocapsaicin, homodihydrocapsaicin, homocapsaicin, nonivamid, etc.), capsanthin, benzyl nicotinate, β-butoxyethyl nicotinate, N-acyl varnish. Luamide, vanillyl nonanoate, polyhydric alcohol, pepper powder, tincture of pepper, pepper extract, vanillyl ether nonanoate, vanillyl alcohol alkyl ether derivative (example: vanillyl ethyl ether, vanillyl butyl ether, vanillyl pentyl ether, vanillyl) Lylhexyl ether), isovanillyl alcohol alkyl ether, ethyl vanillyl alcohol alkyl ether, veratrial alcohol derivative, substituted benzyl alcohol derivative, substituted benzyl alcohol alkyl ether, vanillin propylene glycol acetal, ethyl vanillin propylene glycol acetal, ginger extract, ginger Oils, gingerols, zingerones, hesperidin, and pyrrolidone carboxylic acids, and any combination thereof. Among them, the warming component is preferably not capsaicin from the viewpoint that the wearer does not feel pain, and vanillyl alcohol alkyl ether derivatives (eg, vanillyl ethyl ether, vanillyl butyl ether, vanillyl pentyl ether, etc. More preferred are vanillyl hexyl ether), ginger extract, ginger oil, gingerol, and zingerone, and any combination thereof.

The solvent component is not particularly limited as long as it can contain a warming component, and examples thereof include lipophilic solvents and hydrophilic solvents. Such a solvent component can dissolve, disperse, etc. the warming component. Examples of the lipophilic solvent include fats and oils. Examples of fats and oils include natural oils (eg, fatty acid esters such as triglycerides, coconut oil, linseed oil, etc.), hydrocarbons (eg, paraffin (eg, liquid paraffin)) and the like. Examples of the hydrophilic solvent include water and alcohol. Examples of the alcohol include lower alcohols such as methanol, ethanol, ethylene glycol and glycerin, higher alcohols such as capryl alcohol, lauryl alcohol and myristyl alcohol. Among them, as the solvent component, fats and oils (lipophilic solvent) or alcohols (hydrophilic solvent) are preferable from the viewpoint of easy control of volatility, particularly easy reduction of volatility. Further, from the viewpoint of not easily impairing absorbability, the solvent component is preferably a lipophilic solvent. By using the solvent component of the warming agent as a lipophilic solvent, it can also be used as a lipophilic solvent for Chinese herbal medicine materials, whereby the sanitary napkin 1 can be made thinner and softer, and the wearing feeling can be improved.

The warming agent 51 on the liquid permeable sheet 7 and the warming agent 52 on the surface of the absorber 11 may be transferred to a lower layer (example: absorber 11, lower part of the absorber 11) depending on the type of body fluid and the position where it is applied. It is preferable to coexist with a durable hydrophilic oil agent (durable hydrophilic agent) that has a property of being hard to flow out. That is, it is preferable to contain a durable hydrophilic oil as a solvent component. The durable hydrophilic oil agent is not particularly limited, and those coated or kneaded with fibers can be adopted in the technical field. Examples of the durable hydrophilizing agent include a mixture of an alkyl phosphate ester salt having 10 to 30 carbon atoms, a betaine compound having 10 to 30 carbon atoms, a sulfate ester salt or a sulfonate salt, and an alkyl phosphate ester salt and polyether modification. Examples thereof include a mixture with silicone. Therefore, it is possible to prevent the warming

sensitizers

51 and 52 from moving to the lower layer due to body fluid. That is, the warming agent can be maintained in a portion relatively close to the skin. This makes it possible to further improve the sustainability of warm feeling.

The concentration of the warming component of the warming agent 50 to 52 is preferably 1 to 50% by mass, more preferably 3 to 30% by mass, and further preferably 5 to 15% by mass. This is from the viewpoint of the effect of warmth. In the sanitary napkin 1, the basis weight of the warming component in the warming agents 50 to 52 is preferably 0.001 to 30 g/m ² , more preferably 0.01 to 20 g/m ² , and further preferably Is 0.1 to 10 g / m ² . This is to give the wearer a warm feeling.

When the warming agents 50 to 52 contain a heat-generating component as a warming component, the heat-generating component is not particularly limited as long as the heat-generating component itself generates heat. Examples of the heat generating component include metal powder such as iron powder (using heat of oxidation), acidic substances and alkaline substances (using heat of neutralization), and inorganic salts (using heat of hydration). When the heat-generating component is used, the wearer's skin can be actually warmed when the sanitary napkin 1 is worn, and the wearer can surely feel the warmth.

The warming agent 50, the warming agent 51, and the warming agent 52 are water-disintegrating protective materials in order to prevent the sanitary napkin 1 from volatilizing or moving to another area before it is used. , For example, it may be protected by microcapsules. Microcapsules contain functional agents and disintegrate when exposed to liquids (eg menstrual blood, urine, sweat), releasing the functional agents to the outside. The released functional agent exerts a predetermined function on the wearer by vaporizing due to the wearer's body temperature or the like or by coming into contact with the wearer's skin.

Examples of the material of the microcapsule include sugars, for example, monosaccharides (example: glucose), disaccharides (example: sucrose) and polysaccharides (examples: dextrin, glucomannan, sodium alginate, water-soluble starch), gelatin, Examples thereof include water-soluble polymers (eg, polyvinyl alcohol, polyvinyl acetate) and the like.

Microcapsules are commercially available, and examples thereof include INCAP ™, which is commercially available from Symrise. Further, the microcapsules are produced, for example, by dissolving the material of the microcapsules in water to form an aqueous solution, mixing the functional agent and the surfactant with the aqueous solution, and drying under reduced pressure while spraying the aqueous solution. Can be done.

In the sanitary napkin 1, the warming agents 50 to 52 are at least one other kind having a desired action in addition to the above-mentioned warming component and solvent component as long as the effect of imparting a warming feeling to the wearer is not impaired. Ingredients can be included. As at least one such other ingredient, for example, agents such as antibacterial agents, skin astringents and anti-inflammatory agents, vitamins, amino acids, zeolites, hyaluronic acid, collagen, petrolatum, trehalose, pH regulators, moisturizers, fragrances. And so on.

Unlike the exothermic agent that heats itself, the warming agent of the sanitary napkin 1 is unlikely to cause low-temperature burns, and the adhesive portion 72 and the like are not easily softened. Therefore, when removing the sanitary napkin 1 from underwear after use. In addition, the adhesive portion 72 and the like are less likely to remain on the underwear, which is preferable.

In the sanitary napkin 1, the material of the liquid permeable sheet 7 is not particularly limited as long as it has liquid permeability, and examples thereof include cloth (eg, non-woven fabric, woven fabric, knitted fabric), perforated film and the like. Be done. As the cloth, a non-woven fabric is preferable from the viewpoint of ease of manufacturing the sanitary napkin 1. Examples of the non-woven fabric include air-laid pulp, air-through non-woven fabric, spunbond non-woven fabric, point-bond non-woven fabric, spunlace non-woven fabric, needle punch non-woven fabric, melt-blown non-woven fabric, and a combination thereof (example: SMS). Among them, air-through nonwoven fabric is preferable as the nonwoven fabric. The liquid permeable sheet 7 preferably has a basis weight of 5 to 100 g/m ² , more preferably 10 to 50 g/m ² .

Examples of fibers that make up the cloth include natural fibers, synthetic fibers, and semi-synthetic fibers. Examples of natural fibers include pulp fibers and regenerated cellulose fibers. Examples of the regenerated cellulose fiber include rayon fiber. Examples of semi-synthetic fibers include semi-synthetic cellulose fibers such as acetate fibers. Examples of synthetic fibers include thermoplastic fibers. Thermoplastic fibers include, for example, polyolefin polymers such as polyethylene and polypropylene, polyester polymers such as polyethylene terephthalate (PET), polybutylene terephthalate and polypentylene terephthalate, and polyamides such as nylon 6 and nylon 6,6. Examples thereof include fibers formed from based polymers, acrylic polymers, polyacrylonitrile-based polymers, modified products thereof, or combinations thereof. Examples of the apertured film include a sheet of polyethylene or polypropylene provided with a plurality of apertures.

The surface sheet 7a is preferably formed of hydrophilic fibers (eg, cotton, rayon, hair, silk). As a result, it is possible to easily draw in and hold moisture containing sweat into the constituent fibers. As a result, it is possible to make it difficult for water to remain on the surface of the constituent fibers, make it difficult for the water to come into contact with the skin, and make it difficult for the skin to feel cold. This makes it possible to further improve the sustainability of warm feeling.

In the sanitary napkin 1, the material of the liquid-impermeable sheet 9 is not particularly limited as long as it is liquid-impermeable and non-breathable. This is to make it difficult for the air warmed by the warming effect of the warming agent 50 to dissipate from the region between the liquid-impermeable sheet 9 and the skin. Examples of the material of the liquid impermeable sheet 9 include synthetic resin films such as polyethylene and polypropylene, nonwoven fabrics such as spunbond or spunlace joined with synthetic resin films, and multilayer nonwoven fabrics such as SMS. A synthetic resin film having properties is preferable. The liquid-impermeable sheet 9 preferably has a basis weight of 10 to 50 g / m ² , more preferably 15 to 30 g / m ² .

In the sanitary napkin 1, the material of the warming agent holding sheet 13 is impregnated with the warming agent 50, for example, those listed as the material of the liquid permeable sheet 7 or a porous resin sheet such as a sponge sheet. Some are possible. Specifically, when the solvent component of the warming agent 50 is an oil-based solvent, synthetic fiber fabrics such as non-woven fabrics, woven fabrics, and knitted fabrics are mentioned, and synthetic fiber non-woven fabrics are preferable. When the solvent component of the warming agent is a hydrophilic solvent, for example, a cloth composed of cellulose-based fibers, for example, a non-woven fabric, a woven fabric, a knitted fabric, or the like, preferably a tissue composed of pulp fibers or an air-laid pulp. Can be mentioned. In another embodiment, when a heat retaining body having a heat retaining function is used instead of the warming body 5, the material of the heat retaining sheet replaced with the warming agent holding sheet 13 is, for example, a warming agent holding sheet. The materials listed in 13 are listed, and in this case, the warming agent 50 is not impregnated.

In the sanitary napkin 1, examples of the material of (the absorbent core of) the absorbent body 11 include pulp fiber and superabsorbent polymer. When the absorber 11 has a core wrap, the material of the core wrap includes, for example, tissue. The basis weight of the absorber 11 is, for example, 10 to 500 g/m ² , and preferably 100 to 400 g/m ² .

In the sanitary napkin 1, the material of the

adhesive parts

71, 72, 73, etc. is a hot melt adhesive, for example, styrene-ethylene-butadiene-styrene (SEBS), styrene-butadiene-styrene (SBS), styrene- Pressure-sensitive adhesives or heat-sensitive adhesives mainly composed of rubbers such as isoprene-styrene (SIS) or olefins such as linear low-density polyethylene; water-soluble polymers (for example, polyvinyl alcohol, Examples thereof include a water-sensitive adhesive made of a water-swellable polymer (for example, polyvinyl acetate, sodium polyacrylate, etc.) or a water-sensitive adhesive (such as carboxylmethyl cellulose or gelatin).

In the sanitary napkin 1, examples of the material of the individually wrapped sheet 41 include polyolefin-based polymers such as polyethylene and polypropylene. The individual wrapping sheet 41 may include an airtight layer from the viewpoint of enhancing airtightness. As the material of the airtight layer, for example, on an ethylene vinyl alcohol copolymer, a vinylidene chloride polymer, for example, a vinylidene chloride methyl acrylate copolymer, polyvinyl alcohol, nylon, for example, nylon 6, aluminum foil, a base film (polyethylene terephthalate, etc.). Examples include vapor-deposited materials such as alumina and silica.

The absorbent article of the present invention (example: sanitary napkin) is not limited to each of the above-described embodiments, and can be combined with each other or known within a range not deviating from the object and purpose of the present invention. It is possible to apply the technology.

1 Sanitary napkin 7 Liquid permeable sheet (sheet member)
9 Liquid Impermeable Sheet 11

Absorbers

51, 52 Warm Sensitive Agent 60 Absorber Compressed Part (Absorber Concavity)
67 Sheet pressing part (seat member recess)

Claims

Having a longitudinal direction, a width direction and a thickness direction, an absorbent body, the absorbent body and the thickness direction overlap with each other, located on the skin side of the absorbent body, a sheet member having liquid permeability, It is an absorbent article equipped with
A herbal medicine material layer located at least one of the absorber and the sheet member and containing a herbal medicine material having a water-soluble component and a lipophilic component.
A solvent layer located at least one of the absorber and the sheet member and containing a lipophilic solvent,
Equipped with
A part of the Chinese herbal medicine material layer and a part of the solvent layer overlap in the thickness direction, or overlap in the longitudinal direction or the width direction.
Absorbent article.
The solvent layer is located on the skin side of the Chinese herbal medicine material layer.
The absorbent article according to claim 1.
The solvent layer is further located on the non-skin side of the Chinese herbal medicine material layer.
The absorbent article according to claim 2.
The solvent layer is not arranged in the central portion in the width direction.
The absorbent article according to any one of claims 1 to 3.
A warming agent located at least one of the absorber and the sheet member and having a warming function is further provided.
The absorbent article according to any one of claims 1 to 4.
Further provided with a warming member including another warming agent located on at least one of the front side and the rear side in the longitudinal direction of the absorbent body in the absorbent article in a plan view and having a warming function.
The sheet member extends in at least one of a front side and a rear side in the longitudinal direction with respect to the absorber in a plan view, overlaps with the warming member in the thickness direction, and is more skin than the warming member. Located on the side,
The absorbent article according to any one of claims 1 to 5.
With another Chinese medicine material layer located at least one of the warming member and the sheet member and containing another Chinese medicine material having a water-soluble component and a lipophilic component.
At least one of the warming member and the sheet member, and another solvent layer containing another lipophilic solvent,
Further equipped with,
A part of the other Chinese herbal medicine material layer and a part of the other solvent layer overlap in the thickness direction, or overlap in the longitudinal direction or the width direction.
The absorbent article according to claim 6.
The warming agent is
A warm sensation component that makes the wearer perceive a warm sensation,
A solvent component for dissolving or dispersing the warming sensation component,
Including,
The solvent component is the lipophilic solvent,
The absorbent article according to any one of claims 5 to 7.
The herbal medicine material comprises a crude drug containing the water-soluble component or an extract of the crude drug, and a crude drug having a lipophilic component or an extract of the crude drug.
The absorbent article according to any one of claims 1 to 8.