KR20210134333A - absorbent article - Google Patents

Abstract

An absorbent article capable of allowing the water-soluble component and the lipophilic component of an herbal medicine material to easily reach the skin of a wearer. The absorbent article includes an absorbent body 11 and a sheet member 7 overlapping the absorber in the thickness direction, positioned on the skin side from the absorbent body, and having liquid permeability. The absorbent article is located on at least one of the absorbent body and the sheet member, and the oriental medicine material layer 45 containing the herbal medicine material having a water-soluble component and a lipophilic component, and at least one of the absorbent body and the sheet member, the lipophilic solvent It further includes a solvent layer (51a) containing. A part of the 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.

Description

absorbent article

The present invention relates to absorbent articles.

Absorbent articles provided with herbal medicine materials are known. For example, Patent Document 1 discloses an absorbent article in which an intermediate absorbent containing a herbal medicine material is disposed between the topsheet and the base absorbent. In this absorbent article, a powdered herbal medicine material having a desired particle size distribution or average particle shape is disposed in an intermediate absorbent body. As herbal medicine materials, herbal medicines such as Ayeop, Angelica and Hyangbuja are used, for example, mixed in a ratio of 1:1:1.

Patent Document 1: Japanese Patent No. 4261593

As in the absorbent article of Patent Document 1, when the herbal medicine material is disposed on the non-skin side rather than the topsheet, it seems difficult at first glance to make the components of the herbal medicine material reach the wearer's skin. However, even in that case, if the component has a property of being easily fused to water, that is, water solubility, when the herbal medicine material comes into contact with body fluids (eg menstrual blood) or sweat, which are liquid excretions, the component is It can be soluble in water. Therefore, when the moisture reaches the skin, it is possible to make the component reach the wearer's skin.

However, there are cases where the components of the herbal medicine material have a property of being difficult to fuse with water, that is, water-insoluble. For example, when the component has a property of being easily fused to oil, that is, lipophilicity, it is difficult for the component to dissolve in the water even if the herbal medicine material comes into contact with water due to body fluid, sweat, or the like. In that case, even if the moisture reaches the skin, it is difficult to make the component reach the wearer's skin. Therefore, even if such an herbal medicine material is arrange|positioned to an absorbent article, there exists a possibility that it may become difficult to fully exhibit the function as an herbal medicine material.

It is also applicable to what has both a water-soluble component and a lipophilic component as an herbal medicine material. Examples of such a herbal medicine material include one or more types of crude drugs or extracts thereof having a water-soluble component, and one or more types of herbal medicines or extracts thereof having a lipophilic component. Moreover, as such a herbal medicine material, one type or multiple types of crude drugs and its extracts having both a water-soluble component and a lipophilic component are mentioned.

Accordingly, an object of the present invention is an absorbent article comprising a herbal medicine material containing not only a component having water solubility but also a component having a lipophilic property, wherein the component of the herbal medicine material can easily reach the skin of a wearer. is to provide

The absorbent article of the present invention has a longitudinal direction, a width direction, and a thickness direction, the absorbent article is provided with an absorbent body and a sheet member overlapping the absorbent body in the thickness direction, located on the skin side from the absorbent body, and having liquid permeability. an oriental medicine material layer positioned on at least one of the absorbent body and the sheet member and comprising an herbal medicine material having a water-soluble component and a lipophilic component; An absorbent article comprising a solvent layer containing

According to the present invention, there is provided an absorbent article comprising an oriental medicine material containing not only a water-soluble component but also a lipophilic component, wherein the component of the herbal medicine material can easily reach the skin of a wearer. can

BRIEF DESCRIPTION OF THE DRAWINGS It is a top view which shows the structural example of the sanitary napkin which concerns on 1st Embodiment.
FIG. 2 is a cross-sectional view taken along a longitudinal center line in FIG. 1 .
Fig. 3 is a bottom view showing a configuration example of the sanitary napkin according to the first embodiment.
Fig. 4 is a schematic diagram showing the arrangement of the solvent layer of the liquid-permeable sheet according to the first embodiment.
It is a schematic diagram which shows arrangement|positioning of the solvent layer in the absorber which concerns on 1st Embodiment.
Fig. 6 is a plan view showing a configuration example of the sanitary napkin according to the second embodiment.
7 is a cross-sectional view taken along a longitudinal center line in FIG. 6 .
Fig. 8 is a schematic diagram showing the arrangement of the solvent layer of the liquid-permeable sheet according to the second embodiment.
It is a schematic diagram which shows the arrangement|positioning of the solvent layer of the absorber which concerns on 2nd Embodiment.

Specifically, the disclosure of the present invention relates to the following aspects.

[Aspect 1]

An absorbent article comprising: an absorbent body; and a sheet member overlapping the absorbent body in the thickness direction, located on the skin side of the absorbent body, and having liquid permeability, the absorbent body and the sheet an oriental medicine material layer located on at least one of the members and comprising an herbal medicine material having a water-soluble component and a lipophilic component; and a solvent layer located on at least one of the absorbent body and the sheet member and containing a lipophilic solvent; , An absorbent article in which a part of the oriental 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.

In this absorbent article, at least one of the absorbent body and the sheet member while partially overlapping in the thickness direction or overlapping in the planar direction (length direction or width direction) of the oriental medicine material having a water-soluble component and a lipophilic component and a lipophilic solvent located in

Therefore, in the region where the herbal medicine material overlaps the lipophilic solvent in the thickness direction or in the planar direction, when the body fluid is excreted in the absorbent article and migrates and diffuses in the sheet member and the absorbent body, a part of the body fluid is the herbal medicine material and the lipophilic through the solvent. As a result, along with the flow (transition/diffusion) of the body fluid, the lipophilic solvent also migrates and diffuses and comes into contact with at least a part of the herbal medicine material. Thereby, the lipophilic component of an herbal medicine material can be dissolved in a lipophilic solvent. Then, when the lipophilic solvent containing the lipophilic component diffuses or volatilizes, the lipophilic solvent can reach the wearer's skin. Alternatively, in a state in which the lipophilic solvent containing the lipophilic component is contained in water such as body fluid or sweat, for example, in the state of being contained in the form of an oil film on the approximate surface of the water, the water becomes vapor, or it is applied to an absorbent article. By diffusing so as to return to the skin side by the applied body pressure, the lipophilic solvent along with water can reach the wearer's skin. That is, the lipophilic component of the herbal medicine material can be made to reach the wearer's skin.

On the other hand, in a region where the herbal medicine material does not overlap with the lipophilic solvent in the thickness direction or in the planar direction (partially, overlapping regions may be used), when the body fluid migrates and diffuses in the sheet member and the absorber, a part of the body fluid becomes the lipophilic solvent Without passing through, it reaches the herbal medicine material. Alternatively, sweat or the like emitted from the skin diffuses in the sheet member to reach the herbal medicine material. That is, the body fluid and moisture, such as sweat, come into contact with the herbal medicine material by flow (transition/diffusion). Thereby, the water-soluble component of the herbal medicine material can be dissolved in water|moisture content, such as a body fluid and sweat. In that case, since the lipophilic solvent does not exist in the vicinity, it can suppress that a lipophilic solvent covers the herbal medicine material, and it becomes difficult for a water|moisture content to reach|attain the herbal medicine material. Then, the moisture containing the water-soluble component becomes vapor or diffuses to the skin side by the body pressure applied to the absorbent article, so that the water containing the water-soluble component can reach the wearer's skin. have. That is, the water-soluble component of the herbal medicine material can be made to reach the wearer's skin.

Thereby, in the absorbent article containing the component which has lipophilicity as well as the component which has water solubility, the herbal medicine material WHEREIN: It becomes possible to make both components of the herbal medicine material reach a wearer's skin easily. Thereby, this absorbent article can exhibit the effect of an herbal medicine material, for example, the effect of improving blood flow and blood circulation, and warming a body.

[Mode 2]

The absorbent article according to aspect 1, wherein the solvent layer is located on the skin side from the herbal medicine material layer.

In this absorbent article, the solvent layer is located on the skin side rather than the 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 absorbent body, the body fluid and the lipophilic solvent can pass through the herbal medicine material reliably. Therefore, the lipophilic component of the herbal medicine material can be dissolved by the lipophilic solvent, whereby the lipophilic component of the herbal medicine material can be made to reach the wearer's skin more.

[Mode 3]

The absorbent article according to aspect 2, wherein the solvent layer is further located on the non-skin side than the herbal medicine material layer.

In this absorbent article, a solvent layer exists not only in the position on the skin side rather than an herbal medicine material layer, but also in the position on the non-skin side rather than an 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 absorbent body, the body fluid and the lipophilic solvent can pass through the herbal medicine material more reliably. Therefore, the lipophilic component of the herbal medicine material can be further dissolved in the lipophilic solvent, whereby the lipophilic component of the herbal medicine material can be made to reach the wearer's skin further.

[Aspect 4]

The said solvent layer is not arrange|positioned at the center part of the said width direction, The absorbent article in any one of Aspects 1-3.

The central portion in the width direction of the absorbent article is in contact with the wearer's excretory orifices and a region in the vicinity thereof, that is, a region of sensitive skin. Then, in this absorbent article, a solvent layer is not arrange|positioned in the center part of the width direction in an absorbent article. Therefore, it can make it difficult to transfer the lipophilic component of the herbal medicine material to the area|region which the area|region of sensitive skin contacts. Thereby, while making the lipophilic component of an herbal medicine material reach|attain areas other than the central part of the width direction of an absorbent article, it can suppress that the component directly reaches the area|region of sensitive skin.

[Aspect 5]

The absorbent article according to any one of Aspects 1 to 4, further comprising a warming agent having a warming function, located in at least one of the absorbent body and the sheet member.

The absorbent article further comprises a warming agent having a warming function. Therefore, the air containing moisture such as sweat generated in the vicinity of the skin whose body temperature has risen due to the effect of a feeling of warmth causes the oriental medicine material to be soaked, and the surface area thereof is increased, thereby making it easy to release the components of the herbal medicine material. In addition, since the lipophilic solvent can be warmed by the air warmed by the effect of warmth, the components of the herbal medicine dissolved in the lipophilic solvent are volatilized together with, or alone, moisture and/or the lipophilic solvent. You can do it easily. Thereby, the component of an herbal medicine material can be made to reach a wearer's skin more. In addition, when the effect of the herbal medicine material is to warm the body by improving blood flow or blood circulation, the absorbent article can warm the body more by the synergistic effect of the warming agent and the herbal medicine material.

[Aspect 6]

In a plan view, the absorbent article further includes a warming member located on at least one of the front side and the rear side in the longitudinal direction from the absorbent body and containing another warming agent having a warming function, wherein the sheet member is any one of aspects 1 to 5, wherein in plan view, the absorber extends to at least one of the front side and the rear side in the longitudinal direction from the absorber, overlaps with the warm-sensitive member in the thickness direction, and is located on the skin side of the warm-sensitive member The absorbent article according to claim.

The absorbent article further includes a warming member containing another warming agent located on at least one of the front side of the absorbent in the longitudinal direction, that is, the belly side of the wearer, and the rear side of the absorbent body in the longitudinal direction, that is, the back side of the wearer. Therefore, when the absorbent article is put on the wearer, at least one of the belly side and the back side of the wearer can be warmed with the warming agent. Thereby, the component of the herbal medicine material can be made to reach the wearer's skin, and at least one of the abdomen and the back can be warmed by the other warming agent located on at least one of the dorsal side and the back side.

[Mode 7]

Another oriental medicine material layer located on at least one of the warmth-sensitive member and the sheet member and comprising another herbal medicine material having a water-soluble component and a lipophilic component; The absorbent article according to aspect 6, further comprising another solvent layer containing an oily solvent, wherein a part of the other herbal medicine material layer and a part of the other solvent layer overlap in the thickness direction.

In the absorbent article, at least one of the front and rear sides of the absorbent body in the longitudinal direction, the other herbal medicine material and the other lipophilic solvent partially overlap in the thickness direction or in the planar direction (longitudinal direction or width direction), a warming member and It is located on at least one of the sheet members. Therefore, when the absorbent article is put on the wearer, at least one of the dorsal side or the back side of the wearer is warmed with a warming agent, and the air containing moisture such as sweat generated near the skin whose body temperature has risen due to the effect of the warming effect is used. , it is possible to increase the surface area by invoking other herbal medicine materials to make it easier to release the components of other herbal medicine materials. In addition, since other lipophilic solvents can be warmed by the air warmed by the effect of warmth, components of other herbal medicines dissolved in other lipophilic solvents are used together with water and/or other lipophilic solvents or alone. Thus, it can be easily volatilized. Thereby, in at least one of the front side and rear side of a longitudinal direction, the component of another herbal medicine material can be made to reach the skin of the front side of a wearer in the longitudinal direction more.

[Mode 8]

The warming agent includes a warming component that causes the wearer to perceive a feeling of warmth and a solvent component that dissolves or disperses the warming component, wherein the solvent component is the lipophilic solvent. The described absorbent article.

In this absorbent article, since the solvent component contained in the warming agent is a lipophilic solvent, the warming agent (solvent component) can be used as a solvent layer, and there is no need to separately form a solvent layer, or The area or thickness can be reduced. Thereby, the distance between the herbal medicine material and/or the warming agent and the wearer's skin surface can be shortened. Therefore, it is possible to make the oriental medicine material layer and/or the warming agent more easily reach the wearer's skin.

[Aspect 9]

The absorbent 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 a plurality of types of herbal medicines or extracts of the above-mentioned herbal medicines exists. Therefore, in this absorbent article, as the herbal medicine material, a herbal medicine containing a water-soluble component or an extract of the herbal medicine and a herbal medicine having a lipophilic component or an extract of the herbal medicine are used. Even in such a case, in the present absorbent article, by dissolving the water-soluble component in water and dissolving the lipophilic component in a lipophilic solvent, the components of the herbal medicine material can be made to reach the wearer's skin more. Therefore, even if the herbal medicine material is a herbal medicine material in which a plurality of herbal medicines or extracts thereof are mixed, the components of each herbal medicine or extracts thereof can be effectively used without isolating these herbal medicines or extracts of the herbal medicines.

Hereinafter, the absorbent article which concerns on embodiment is demonstrated as an example of the sanitary napkin provided with a herbal medicine material. However, an absorbent article is not limited to the example, As long as it does not deviate from the meaning of this invention, another absorbent article provided with a herbal medicine material may be sufficient. Examples of such absorbent articles include general sanitary napkins, panty liners, incontinence pads, and disposable diapers, which are provided with herbal medicine materials.

(First embodiment)

The structure of the sanitary napkin 1 which concerns on this embodiment is demonstrated. 1 to 5 are diagrams showing a configuration example of the sanitary napkin 1 according to the present embodiment. 1 is a plan view showing a state in which the individual packaging sheet 41 of the sanitary napkin 1 is opened and unfolded. FIG. 2 is a sectional view along the longitudinal center line CL (described later) in the sanitary napkin 1 shown in FIG. 1 (except for the individual packaging sheet 41). 3 is a bottom view showing the sanitary napkin 1 (excluding the individual packaging sheet 41). 4 is a schematic diagram showing the arrangement of solvent layers 51a and 51b (described later) and the like in the liquid-permeable sheet 7 of the sanitary napkin 1 . 5 is a schematic diagram showing the arrangement of solvent layers 50a and 52a (to be described later) of the sanitary napkin 1 . The sanitary napkin 1 has a longitudinal direction L, a width direction W, and a thickness direction T which 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) or the dorsal side in the longitudinal direction L, and the lower side of the drawing is the rear side (rear side) or the back side in the longitudinal direction L. Viewing the sanitary napkin 1 placed on a plane including the longitudinal direction (L) and the width direction (W) from the upper side in the thickness direction (T) is called "planar view", and the shape grasped in plan view is " planar shape”. An arbitrary direction in the plane including the longitudinal direction L and the width direction W is called a "plane direction." When the wearer puts on the sanitary napkin 1, the side relatively close to and farther from the wearer's skin surface 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 individually wrapped sheet 41, both ends in the longitudinal direction L are longer outward in the longitudinal direction L than the both ends in the longitudinal direction L of the sanitary napkin 1, and both ends in the width direction W are , longer than both ends in the width direction (W) of the sanitary napkin (1) outward in the width direction (W). Accordingly, when the sanitary napkin 1 is disposed on the individual packaging sheet 41, it is arranged so as not to protrude to the outside of the individual packaging sheet 41 in a plan view. Thereby, when the sanitary napkin 1 is folded together with the individual packaging sheet 41, it can be packaged so that the sanitary napkin 1 does not protrude out of the individual packaging sheet 41.

The sanitary napkin 1 is located on the front side (ventral side) of the absorbent body 3 in the longitudinal direction L of the absorbent body 3 for absorbing body fluids (eg, menstrual blood), which are mainly liquid excrement, and is applied to the skin. A warm-sensing body 5 for perceiving a warm feeling is provided. That is, the sanitary napkin 1 is divided into the absorbent body 3 at the rear in the longitudinal direction L and the warm body 5 at the front in the longitudinal direction L. The shape of the absorbent body 3 is that of a general sanitary napkin, and includes a pair of wing portions 17 and 17 extending outwardly in the width direction W. As shown in FIG. The shape of the warm sensory body 5 is not particularly limited, and examples thereof include a triangle, a rectangle, a polygon (including a case with rounded corners or a curved side), a circle or an ellipse, the shape of a living organism, or a combination thereof. can Further, in another embodiment, the warm-sensing body 5 is located on the rear side (back side) instead of or together with the front side (ventral side) in the longitudinal direction L of the absorbent body 3 . In another embodiment, the pair of wing portions 17 , 17 is absent. In another embodiment, the warm-sensing body 5 is not provided.

The sanitary napkin 1 has a longitudinal center line CL (virtual line) extending in the longitudinal direction L through the center of the width direction W, and each length of the pair of wing portions 17 and 17 . It has a width direction center line CW (virtual line) which connected the center of the direction L in the width direction W. However, when the wing portion 17 is not present, the width direction center line CW is, in the longitudinal direction L, the width through the center of the excretory port contact region 21 (described later) in the absorbent body 3 . A line extending in the direction (W). In the present embodiment, both are assumed to coincide. Alternatively, when the absorber 11 is a so-called hourglass shape, the width direction center line CW is at a position (excluding both ends) where the dimension in the width direction W of the absorber 11 is the minimum in the longitudinal direction L. ) and extending in the width direction (W). In the sanitary napkin 1, the direction and the side toward the longitudinal center line CL are inward and inward in the width direction W, respectively, and the direction and the direction away from it are outward and outward in the width direction W, respectively. do. On the other hand, the direction and the side toward the width direction center line CW are made inward and inward of the longitudinal direction L, respectively, and let the direction and the direction away from it be outward and outward of the longitudinal direction L, respectively. These definitions are also commonly used for each material of the sanitary napkin 1 .

The sanitary napkin (1) has an absorbent body (3), a liquid-permeable sheet (7) that comes into contact with the wearer's skin when worn, and a liquid-impermeable sheet (9) that comes into contact with clothing (underwear) when worn. and an absorber (11) disposed between the liquid-permeable sheet (7) and the liquid-impermeable sheet (9). In addition, the sanitary napkin 1 includes, in the warm body 5, a liquid-permeable sheet 7 that comes into contact with the wearer's skin when worn, and a liquid-impermeable sheet 9 that comes into contact with clothing when worn. , a thermosensitive agent holding sheet 13 disposed between the liquid permeable sheet 7 and the liquid impermeable sheet 9 . The thermosensitive agent holding sheet 13 is located in front of the absorber 11 in the longitudinal direction L. The liquid-permeable sheet 7 in the absorbent body 3 and the liquid-permeable sheet 7 in the warm-sensitive body 5 are integral sheets. The liquid-impermeable sheet 9 in the absorbent body 3 and the liquid-impermeable sheet 9 in the warm-sensing body 5 are integral sheets. However, the integral sheet includes not only a case in which the material is a single sheet, but also a sheet in which a plurality of sheets are combined and integrated. The absorbent body 11 in the absorbent body 3 and the warming agent holding sheet 13 in the warming body 5 are different members. The front end of the absorbent body 11 in the longitudinal direction L overlaps with the rear end of the thermosensitive agent holding sheet 13 in the longitudinal direction L in the thickness direction T, so that the overlapping portion 15 is formed. do. That is, in the longitudinal direction L, the front edge 11E1 of the absorber 11 is located in front of the rear edge 13E2 of the thermosensitive agent holding sheet 13 . In this case, in the overlapping portion 15 , the end of the absorber 11 is disposed on the end of the thermosensitive agent holding sheet 13 . This is for suppressing the leakage of the body fluid in the front in the longitudinal direction L.

In another embodiment, in the case where the function of feeling of warmth is emphasized, in the overlapping portion 15 , the end of the warming agent holding sheet 13 is disposed on the end of the absorbent body 11 . In another embodiment, the end of the absorbent body 11 and the end of the thermosensitive agent holding sheet 13 do not overlap in plan view (the overlapping portion 15 does not exist), and these end edges are in contact with each other, or separated. In another embodiment, the position of the front end edge 11E1 of the absorbent body 11 in the longitudinal direction L is the position of the front end edge 13E1 of the thermosensitive agent holding sheet 13 in the longitudinal direction L. It overlaps the location, or exists outside it. In other words, the thermosensitive agent holding sheet 13 overlaps the absorbent body 11 over the entire length in the longitudinal direction L. In another embodiment, the warming body 5 is replaced with a heat insulating body of the same shape, and the warming agent holding sheet 13 is replaced with a heat insulating sheet of the same shape that does not contain a warming agent.

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

The solvent layer 51a extends in the longitudinal direction L in plan view, has a plurality of stripes arranged at predetermined intervals in the width direction W, and in the thickness direction T, the liquid-permeable sheet ( 7) is located on the surface of the non-skin side. A part of the herbal medicine material layer 45 and a part of the solvent layer 51a overlap in the thickness direction T, and a part of the herbal medicine material layer 45 is located on the non-skin side of a part of the solvent layer 51a. . A part of the herbal medicine material layer 45 and a part of the solvent layer 51a are in direct contact with the thickness direction T from a viewpoint that a lipophilic component becomes easy to elute to a lipophilic solvent. The solvent layer 51a is, from a viewpoint that a lipophilic component becomes easy to contact with a lipophilic solvent, in planar view, rather than the oriental medicine material layer 45 outside the longitudinal direction (L), and the width direction (W) extends outward of In the sanitary napkin 1, a region VM1 in which a part of the oriental medicine material layer 45 and a part of the solvent layer 51a do not overlap in the thickness direction T, that is, the herbal medicine material is present, but the lipophilic solvent is not present. There are areas that do not. This is to facilitate the dissolution of water-soluble components of herbal medicine materials into body fluids or moisture such as sweat. Moreover, as another embodiment, when the herbal medicine material layer 45 is located on the surface of the non-skin side of the liquid-permeable sheet 7 in the thickness direction T, the solvent layer 51a is the thickness direction T. WHEREIN: It is located in the skin side of the herbal medicine material layer 45 in the liquid permeable sheet|seat 7. In addition, 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 extends in the longitudinal direction L in plan view, has a plurality of stripe shapes arranged at predetermined intervals in the width direction W, and in the thickness direction T, the herbal material layer ( 45) is also located on the surface or inside the skin side of the absorbent body 11 . A part of the herbal medicine material layer 45 and a part of the solvent layer 52a overlap in the thickness direction T, and a part of the herbal medicine material layer 45 is located on the skin side of a part of the solvent layer 52a. A part of the herbal medicine material layer 45 and a part of the solvent layer 52a are in direct contact with the thickness direction T from a viewpoint that a lipophilic component becomes easy to elute to a lipophilic solvent. From the viewpoint that the lipophilic component easily comes into contact with the lipophilic solvent, the solvent layer 52a is, in plan view, outward from the oriental medicine material layer 45 in the longitudinal direction L and outward in the width direction W. is extended In the sanitary napkin 1, a region VM2 in which a part of the oriental medicine material layer 45 and a part of the solvent layer 52a do not overlap in the thickness direction T, therefore, the herbal medicine material is present but the lipophilic solvent is not present. There are areas that do not. This is to facilitate the dissolution of water-soluble components of herbal medicine materials into body fluids or moisture such as sweat. In addition, the planar shape of the solvent layer 52a is arbitrary.

Moreover, in another embodiment, it has either the solvent layer 51a or the solvent layer 52a, and does not have the other. In another embodiment, at least one of the oriental medicine material layer 45 (partial), the solvent layer 51a (partial), and the solvent layer 52a (partial) is a ratio of the liquid-permeable sheet 7 On the skin-side surface and/or the skin-side surface or inside of the absorbent body 11, it is located in approximately the same range in the thickness direction T. In that case, it can be said that at least one of a part of herbal medicine material layer 45, a part of solvent layer 51a, and a part of solvent layer 52a overlaps in the planar direction (length direction or width direction). As such a state, the state in which one of a part of the herbal medicine material layer 45 and a part of solvent layers 51a (, 52a) was embedded in the other is mentioned, for example.

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

The solvent layer 51b extends in the longitudinal direction L, has a plurality of stripes arranged at predetermined intervals in the width direction W, and has a ratio of the liquid-permeable sheet 7 in the thickness direction T. It is located on the surface of the skin side. In the width direction W, the width of the solvent layer 51b is larger than the width of the herbal medicine material layer 47 . A part of the herbal medicine material layer 47 and a part of the solvent layer 51b overlap in the thickness direction T, and a part of the herbal medicine material layer 47 is located on the non-skin side of a part of the solvent layer 51b. . A part of the 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 to the lipophilic solvent. Further, there is a region in which a part of the oriental medicine material layer 47 and a part of the solvent layer 51b do not overlap in the thickness direction T, that is, a region in which the herbal medicine material exists but the lipophilic solvent does not exist. This is to facilitate the dissolution of water-soluble components of herbal medicine materials into body fluids or moisture such as sweat. Moreover, as another embodiment, when the oriental 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 the thickness direction T. WHEREIN: It is located in the skin side of the herbal medicine material layer 47 in the liquid-permeable sheet|seat 7. In addition, 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 warm body 5 . The solvent layer 50a is the non-skin of the herbal medicine material layer 47 in the thickness direction T in a region excluding both ends in the width direction W in the warming agent holding sheet 13 in plan view. The side is also located on the surface or inside the skin side of the warming agent retention sheet 13 . A part of the herbal medicine material layer 47 and a part of the solvent layer 50a overlap in the thickness direction T, and a part of the herbal medicine material layer 47 is located on the skin side of a part of the solvent layer 50a. A part of the 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 to the lipophilic solvent. The solvent layer 50a extends outward in the width direction W than the oriental medicine material layer 47 in plan view from the viewpoint that the lipophilic component easily comes into contact with the lipophilic solvent. In addition, in another embodiment, in the sanitary napkin 1, a part of the herbal medicine material layer 47 and a part of the solvent layer 50a do not overlap in the thickness direction T, ie, the herbal medicine material exists but is lipophilic. There are regions where no solvent is present. This is to facilitate the dissolution of water-soluble components of herbal medicine materials into body fluids or moisture such as sweat. In addition, the planar shape of the solvent layer 50a is arbitrary.

In addition, in another embodiment, it has either the solvent layer 51b or the solvent layer 50a, and does not have the other. In another embodiment, at least one of the herbal medicine material layer 47 (part of), the solvent layer 51b (part of), and the solvent layer 50a (part of) is a ratio of the liquid-permeable sheet 7 On the skin-side surface and/or the skin-side surface or the inside of the warming agent holding sheet 13, they are located in approximately the same range in the thickness direction T. In that case, at least one of a part of the herbal medicine material layer 47, a part of the solvent layer 51b, and a part of the solvent layer 50a can be said to overlap in the planar direction (longitudinal direction or the width direction). As such a state, for example, a state in which one of a part of the herbal medicine material layer 47 and a part of the solvent layers 51b (, 50a) is embedded in the other is mentioned. In addition, the sanitary napkin 1 should just have at least one of the oriental medicine material layer 45 and the oriental medicine material layer 47 .

In this embodiment, the range of the longitudinal direction L in the absorbent body 3 is the range from the rear edge of the sanitary napkin 1 to the front edge 11E1 of the absorbent body 11. do it with On the other hand, the longitudinal direction L of the warm body 5 is the range from the front edge 11E1 of the absorbent body 11 to the front edge of the sanitary napkin 1 . In addition, the range of the width direction W in the absorbent main body 3 and the warmth-sensitive body 5 is set as the full width range. In this case, the overlapping portion 15 is included in the absorbent body 3 , and the rear end of the warming agent holding sheet 13 of the warm-sensitive body 5 in the longitudinal direction L is the absorbent body 3 . It can be said that it is extended to me. Moreover, in the longitudinal direction L, the absorbent main body 3 has the front area|region 3a from the width direction center line CW to the front end edge 11E1 of the absorber 11, and the width direction center line CW. ) to the rear end edge of the sanitary napkin 1 is divided into a rear region 3b. However, in the longitudinal direction L, the front and rear edge of the sanitary napkin 1, the front and rear edge 11E1 and 11E2 of the absorbent body 11, and the warming agent holding sheet 13 The front and rear end edges 13E1 and 13E2 are both at the outermost positions in the longitudinal direction L. In this embodiment, the short edges 11E1 and 11E2 and the short edges 13E1 and 13E2 are all intersection points with the longitudinal center line CL.

In the present embodiment, in the sanitary napkin 1, in the absorbent body 3, in plan view, the excretory opening contact area 21 is slightly anterior to the center in the longitudinal direction L and at the center in the width direction W. This is located, and the excretory orifice non-contact area 23 is located around it as a region other than that. The excretory opening contact region 21 is a region facing or in contact with the wearer's excretory opening when the sanitary napkin 1 is worn. The excretion opening contact area 21 is determined depending on the type and use of the absorbent article. The excretory opening contact region 21 is, for example, slightly forward of the center of the absorbent body 11 in the longitudinal direction L, and has a length of about 1/4 to 2/3 of the total length of the absorbent body 11 in the longitudinal direction L. It becomes the width of about 1/3 to 3/4 of the total length of the absorber 11 in the width direction W of the absorber 11 in the substantially center of the absorber 11 in the width direction W. When a pair of wing parts 17 and 17 exist as in this embodiment, the line which connected the center of the longitudinal direction L in each of the pair of wing parts 17 and 17 in the width direction W On the top, the center of the longitudinal direction L of the excretory orifice contact region 21 is located. Alternatively, when the absorbent body 11 is of a so-called hourglass shape, the length of the excretory opening contact region 21 is located at the position where the dimension in the width direction W of the absorber is the smallest except for both ends in the longitudinal direction L of the absorbent body. The center of the direction (L) is located. However, it is assumed that positional shift within a range of a predetermined length is allowed. The predetermined length is 5% of the length of the absorber 11 in the longitudinal direction L.

The liquid-permeable sheet (sheet member) 7 overlaps the absorber 11 in the thickness direction T, and is coupled to the topsheet 7a and both sides in the width direction W of the topsheet 7a. side seats 7b and 7b. The dimension in the width direction W of the topsheet 7a is approximately the same as the dimension in the width direction W of the absorber 11 . Each side sheet 7b is located at the inner edge part of the width direction W, and includes the leakage prevention wall 7W extended along the longitudinal direction L. That is, the liquid-permeable sheet 7 includes a pair of leakage preventing walls 7W and 7W. Each of the leakage preventing walls 7W has an outer end as a fixed end in the width direction W, and an inner end as a free end in the thickness direction T of the topsheet 7a. extended upwards. The pair of leakage preventing walls 7W and 7W are formed so that their free ends can stand up to the skin side when the sanitary napkin 1 is attached. A pair of leakage preventing walls 7W and 7W are formed in the absorbent body 3 and the warm-sensing body 5, and inhibit the body fluid from mainly leaking outward in the width direction W, and the warm-sensing body 5 is provided. ), it suppresses and maintains the air warmed by the effect of the warm feeling from escaping to the outside in the width direction W.

Moreover, in another embodiment, the leak prevention wall 7W extending along the longitudinal direction L is included in each of the both ends of the width direction W of the topsheet 7a. In another embodiment, the liquid-permeable sheet 7 does not have a pair of side sheets 7b and 7b. In another embodiment, the liquid-permeable sheet 7 does not have a pair of leakage preventing walls 7W and 7W. In another embodiment, the liquid-permeable sheet 7 is in contact with the non-skin side of the topsheet 7a, and thus overlaps the absorber 11 in the thickness direction T, and liquid diffusion for diffusing the body fluid in the planar direction. A sheet (sheet member) is provided. In another embodiment, the topsheet 7a has a plurality of convex portions extending continuously or intermittently along the longitudinal direction L, positioned between the convex portions adjacent to each other, and continuously or intermittently along the longitudinal direction L. has a plurality of concave portions extending to

The absorbent body 11 includes an absorbent core (not shown) and a core wrap (not shown) surrounding the absorbent core. In the longitudinal direction L, the absorbent body 11 has a central region 62 positioned substantially in the center, a front region 61 adjacent to the front of the central region 62 , and a rear of the central region 62 . is divided into a rear region 63 adjacent to . Here, the central region 62 corresponds to the excretory orifice contact region 21 and is located in a range further forward in the longitudinal direction L. The herbal medicine material layer 45 described above is located in the central region 62 . In addition, the basis weight of the center region 62 is higher than the basis weight of the front region 61 and the rear region 63 . Therefore, in the absorber 11, the basis weight of the area|region on the front side of the longitudinal direction L rather than the width direction center line CW is higher than the basis weight of the area|region on the rear side of the longitudinal direction L rather than the width direction center line CW. That is, in the absorber 11, the basis weight of the region from the width direction center line CW to the front end edge 11E1 in the longitudinal direction L is from the width direction center line CW to the rear side in the longitudinal direction L. It is higher than the basis weight of the area up to the edge 11E2. This increases the amount of absorption in the excretory opening contact region 21 slightly forward of the center in the longitudinal direction L, and in a state where the wearer's excretory opening is slightly shifted forward in the longitudinal direction L from the excretory opening contact region 21 , even when the sanitary napkin 1 is attached, it becomes possible to reliably absorb body fluids with the absorbent body 11 . In another embodiment, the basis weight of the absorber 11 is high in a specific part different from the above, or is substantially constant in the whole area|region. In another embodiment, the absorbent body 11 does not utilize a core wrap.

The warmth-sensitive agent holding sheet 13 (functional layer; warmth-sensitive member) is composed of a sheet of one or more layers such as a nonwoven fabric, and contains a warming agent 50 (functional agent). The shape of the warming agent holding sheet 13 is not particularly limited, as long as it can be disposed inside the peripheral portion 27 of the sanitary napkin 1 to suppress leakage of the warming agent 50 , for example, a feeling of warmth The shape which reduced the shape of the main body 5 similarly is mentioned. The warming agent 50 contains a warming component that stimulates a skin temperature receptor (thermal sensory receptor) without heating the body or its vicinity of the wearer of the sanitary napkin 1, thereby causing the wearer to perceive a feeling of warmth. and a solvent component for dissolving or dispersing the warmth component. The warming agent 50 is in the form of a gas or liquid, and includes a fluid component or a volatile component that can move from a place where it is placed under the influence of temperature, atmospheric pressure, external force, etc., for example, at least one of a warming component and a solvent component. This includes a fluid component or a volatile component. Further, even if the warming agent holding sheet 13 is disposed on the non-skin side of the liquid permeable sheet 7 , the warming agent 50 of the warming agent holding sheet 13 is applied when the sanitary napkin 1 is worn. For example, it can penetrate the liquid-permeable sheet 7 by dissolution or volatilization, etc., and can come into contact with the skin of the wearer's lower abdomen. Thereby, the warmth component of the warming agent 50 stimulates the heat sensory receptors of the skin, and a feeling of warmth can be imparted to the lower abdomen of the wearer. In this embodiment, the solvent component of the warming agent 50 and the solvent layer 50a (solvent component) are the same. Accordingly, the thermosensitizer 50 is present at the position where the solvent layer 50a is present. By sharing both solvent components, the distance between the oriental medicine material layer 47 and the warming agent 50 and the wearer's skin surface can be shortened, and the thickness can be made thin and the wearing feeling can be improved.

In the present embodiment, the thermosensitive agent 50 has the same degree as the width of the topsheet 7a (or the absorber 11) in the width direction W in plan view in the thermosensitive agent holding sheet 13. In a slightly larger range, in the longitudinal direction L, it is arrange|positioned in the range spanning between the both ends. In another embodiment, the thermosensitive agent 50 is disposed over the entire central portion 25 excluding the peripheral portion of the thermosensitive agent holding sheet 13 in plan view. Thereby, the effect of the warming agent 50 extends to a still wider area. In another embodiment, the thermosensitive agent 50 is disposed in the entirety including the peripheral portion of the thermosensitive agent holding sheet 13 in plan view. In another embodiment, the thermosensitive agent 50 is arranged in the form of a plurality of stripes extending in the longitudinal direction (L) and arranged at a predetermined interval in the width direction (W). It can be made easy to apply|coat a warming agent. In another embodiment, the thermosensitizer 50 does not include a solvent component. In another embodiment, the warm-sensitive body 5 has a support sheet for supporting the warming-sensitive agent retention sheet 13 on the non-skin side of the warming agent retention sheet 13 . In another embodiment, the warming agent holding sheet 13 does not contain the warming agent 50 , and thus the warming agent holding sheet 13 is a heat insulating sheet and insulates the lower abdomen. In this case, the solvent layer 50a is formed separately. In addition, the planar shape of the thermosensitive agent 50 is arbitrary.

In this embodiment, the absorbent body 11 contains the warming agent 52 (functional agent). The warming agent 52 is disposed on the skin-side surface of the absorbent body 11 in a plurality of stripe-shaped (continuous or intermittent) portions extending in the longitudinal direction (L) and lining up in the width direction (W). In this case, the range in the width direction W in which the thermosensitive agent 52 is disposed is substantially within the range in the width direction W of the topsheet 7a. Although the location of the warming agent 52 is different from that of the warming agent 50 , the properties thereof are the same. In another embodiment, the warming agent 52 is disposed in another location of the absorbent body 11, for example, on the surface or inside of the non-skin side. In another embodiment, the absorbent body 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) are the same. Therefore, the thermosensitizer 52 is present at the position where the solvent layer 52a is present. By sharing both solvent components, the distance between the oriental medicine material layer 45 and the warming agent 52 and the wearer's skin surface can be shortened, and the thickness can be made thin and the wearing feeling can be improved.

In the present embodiment, the liquid-permeable sheet 7 (sheet member) contains a warming agent 51 (functional agent). The warming agent 51 is applied to a plurality of stripe-shaped (continuous or intermittent) portions extending in the longitudinal direction (L) and lining up in the width direction (W) on the non-skin side surface of the liquid-permeable sheet 7 . are placed In this case, the range in the width direction W in which the thermosensitive agent 51 is disposed is substantially within the range in the width direction W of the absorber 11 . Although the position of the warming agent 51 is different from that of the warming agent 50 , the properties thereof are the same. In another embodiment, the thermosensitive agent 51 is disposed at another location of the liquid-permeable sheet 7 , for example, on the surface of the skin side. In another embodiment, the liquid-permeable sheet 7 does not contain the thermosensitive agent 51 . In this embodiment, the solvent component of the thermosensitizer 51, the solvent layer 51a (solvent component), and the solvent layer 51b (solvent component) are the same. Accordingly, the thermosensitizer 51 is present at the position where the solvent layers 51a and 51b are present. By sharing these solvent components, the distance between the oriental 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 made thin and the wearing feeling can be improved.

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 component of the warming agent 50 , the warming agent 51 , and the warming agent 52 is different from the others. In this 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 others. Further, in another embodiment, at least one of the warming component of the warming agent 50 , the warming agent 51 , and the warming agent 52 generates heat by itself, and the body of the wearer of the sanitary napkin 1 . Or it contains the exothermic component which heats the vicinity. In addition, 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) overlaps the absorbent body 11 in the thickness direction T, and is a liquid-impermeable sheet. In another embodiment, the liquid-impermeable sheet 9 also has no air permeability (it is not air permeable). Therefore, in the sanitary napkin 1, the air existing in the skin-side region rather than the liquid-impermeable sheet 9 is directed toward the non-skin side of the liquid-impermeable sheet 9, that is, to the outside of the sanitary napkin 1 It has a structure that is difficult to escape. In other words, the sanitary napkin 1 has a structure that makes it difficult to escape the air warmed by the effect of a warm feeling, that is, to the outside of the sanitary napkin 1 .

The sanitary napkin 1 is provided with adhesive portions for fixing the sanitary napkin 1 to the wearer's clothing in both the absorbent body 3 and the warm body 5 . One side of the adhesive portion is fixed to the liquid-impermeable sheet 9 , and the other side is temporarily fixed to the individual packaging sheet 41 of the sanitary napkin 1 . Among them, in the absorbent body 3, the adhesive portions 73 arranged in a region overlapping the absorber 11 in plan view, extending along the longitudinal direction L, and intermittently arranged in the width direction W. ) and an adhesive portion 71 extending along the longitudinal direction L is disposed at a substantially central portion in the width direction W of the wing portion 17 . On the other hand, in the warm-sensing body 5 , adhesive portions 72 are disposed in regions of both ends in the width direction W. As shown in FIG. In another embodiment, the other side of the adhesive portion is temporarily fixed to a release sheet fixed to the individual packaging sheet 43 .

As shown in FIG. 1 , the individual packaging body (sanitary napkin 1 + individual packaging sheet 41) has a first longitudinal fold F1 (eg, a left fold) and a second longitudinal fold, as shown in FIG. 1 . It has a line F2 (eg, a right fold line), a first fold line F3 (eg, a front fold) in a width direction, and a second fold line F4 (eg, a rear fold) in a width direction. The first longitudinal fold line F1 and the second longitudinal fold line F2 extend along the longitudinal direction L, and are arranged parallel to each other at a predetermined interval from one side to the other side in the width direction W have. The width direction first fold line F3 and the width direction second fold line F4 extend along the width direction W, and are arranged parallel to each other at a predetermined interval from one side to the other side in the longitudinal direction L. have. That is, there are two fold lines in the longitudinal direction and two fold lines in the width direction. However, the first fold line F3 in the width direction is arranged in front of the sanitary napkin 1 , and the second fold line F4 in the width direction is arranged in the rear of the sanitary napkin 1 . The width direction first fold line F3 is located at the front end of the absorbent body 3 and the rear end of the warm body 5 . Specifically, the first fold line F3 in the width direction is located on the side of the center line CW in the width direction rather than the edge 11E1 on the front side in the longitudinal direction L of the absorber 11 . The first fold line F3 in the width direction and the second fold line F4 in the width direction are located on the front and rear sides of the excretory opening contact region 21 in the longitudinal direction L than the excretory opening contact region 21 so as to avoid the excretory opening contact region 21 . . Also, in other embodiments, there are no longitudinal folds. In another embodiment, the widthwise fold lines are one or three or more.

And, when the sanitary napkin 1 is individually packaged, the longitudinal first fold line F1 and the longitudinal direction second fold line F2 are used as the main axes together with the individually wrapped sheet 41 . , the portions (a pair of outer portions) outside the width direction W from both fold lines are folded toward the skin-side surface, respectively. Subsequently, the sanitary napkin 1 folded together with the individual packaging sheet 41 has the first fold line F3 in the width direction and the second fold line F4 in the width direction as the axis, and is longer than the fold lines in the longitudinal direction. The outer part of (L) is folded toward the surface on the skin side, respectively. Then, one end of the individual packaging sheet 41 is fixed to the individual packaging sheet 41 opposite to it with a fixing tape 43 . Thereby, an individual package of the sanitary napkin 1 is formed. And, when the sanitary napkin 1 is used, that is, when an individual package is opened, when it is individually wrapped, it is opened in the reverse order.

Further, the sanitary napkin 1 has a plurality of crimping portions 31 and 33 . The plurality of pressing portions 31 are arranged in a curved shape, continuously or intermittently, mainly in the absorbent body 3 , so as to surround the excretory orifice contact area 21 . The plurality of crimping portions 33 are arranged dispersedly in a dot shape in a region surrounded by the plurality of crimping portions 31 in the absorbent body 3 . The pressing portions 31 and 33 are formed by pressing the liquid-permeable sheet 7 and the absorbent body 11 (in the overlapping portion 15, the warming agent holding sheet 13) from the skin side toward the non-skin side. In addition, the shape and arrangement of the plurality of crimping portions 31 and 33 are arbitrary. In another embodiment, further, in the warming body 5, the liquid permeable sheet 7 and the warming agent holding sheet 13 (the absorber 11 in the overlapping portion 15) are pressed from the skin side to the non-skin side. It has one or a plurality of crimping portions formed by doing so. The shape of the crimping portion 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 their peripheral portions 27 by a known method such as thermal sealing. In the sanitary napkin 1, the non-skin side of the liquid-permeable sheet 7 and the skin-side side of the absorbent body 11 and the warming agent holding sheet 13 are joined with an adhesive (eg 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 by an adhesive (same as above) or the like.

In the sanitary napkin 1, the oriental medicine material having a water-soluble component and a lipophilic component in the oriental medicine material layers 45 (, 47) and the lipophilic solvent in the solvent layers 51a (, 51b) in the thickness direction (T ) (a planar direction is also possible in another embodiment. Hereinafter, it is also referred to as "thickness direction T etc."), and it is located in at least one of the absorber 11 and the liquid-permeable sheet|seat 7, while partially overlapping. Therefore, in the region where the herbal medicine material overlaps with the lipophilic solvent in the thickness direction T or the like, the body fluid is excreted on the sanitary napkin 1 and migrates and diffuses in the liquid permeable sheet 7 and the absorbent body 11 . , a part of the body fluid passes through the herbal medicine material and the lipophilic solvent. As a result, as the body fluid flows and migrates and diffuses, the lipophilic solvent also migrates and diffuses to come into contact with at least a part of the herbal medicine material. Thereby, the lipophilic component of an herbal medicine material can be dissolved in a lipophilic solvent. Then, when the lipophilic solvent containing the lipophilic component diffuses or volatilizes, the lipophilic solvent can reach the wearer's skin. Alternatively, in a state in which the lipophilic solvent containing the lipophilic component is contained in water such as body fluid or sweat, for example, in the state of being contained in the form of an oil film on the approximate surface of the water, the water becomes steam, or a sanitary napkin ( The lipophilic solvent along with water can reach the wearer's skin by diffusing it back to the skin side by the body pressure applied to 1). That is, the lipophilic component of the herbal medicine material can be made to reach the wearer's skin.

On the other hand, the herbal medicine material of the oriental medicine material layer 45 (, 47) does not overlap with the lipophilic solvent of the solvent layer 51a (, 51b) in the thickness direction T, etc. (partially, even in overlapping regions) possible), when the body fluid moves and diffuses in the liquid-permeable sheet 7 and the absorber 11, a part of the body fluid reaches the herbal medicine material without passing through the lipophilic solvent. Alternatively, sweat or the like emitted from the skin diffuses in the liquid-permeable sheet 7 to reach the herbal medicine material. That is, the body fluid and moisture, such as sweat, come into contact with the herbal medicine material by flowing, transferring and diffusing. Thereby, the water-soluble component of the herbal medicine material can be dissolved in water|moisture content, such as a body fluid and sweat. In that case, since the lipophilic solvent does not exist in the vicinity, it can suppress that a lipophilic solvent covers the herbal medicine material, and it becomes difficult for a water|moisture content to reach|attain the herbal medicine material. Then, the moisture containing the water-soluble component becomes steam or diffuses to the skin side by 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 be made to reach the wearer's skin.

Here, even if the herbal medicine or extract of the herbal medicine contained in the herbal medicine material (hereinafter also referred to as "crude medicine, etc.") is one type, the herbal medicine or the like is easily fused to water (water-soluble) component as well as to oil. It may contain a component (lipophilic) that tends to become flammable. In addition, there are a plurality of types of herbal medicines contained in the herbal medicine material, and these plural types of herbal medicines are not only herbal medicines having a component that is easily soluble in water (water soluble) but also a component that is easily fused to oil (lipophilic). It may contain herbal medicines having Even if the sanitary napkin 1 containing such an oriental medicine material, that is, the oriental medicine material is a sanitary napkin 1 containing both water-soluble and lipophilic components, as described above, both lipophilic and water-soluble properties of the oriental medicinal material It becomes possible to easily reach the component of the wearer to the skin of the wearer.

Thereby, in the sanitary napkin 1, not only the water-soluble component of the herbal medicine material but also the lipophilic component can easily reach the wearer's skin, and the effect of the herbal medicine material, for example, blood flow and blood circulation By doing so, it can exert the effect of warming the body.

Next, a preferred method of using the sanitary napkin 1 according to the present embodiment will be described.

When the wearer puts on the sanitary napkin 1, the wearer wears the sanitary napkin 1 so that the excretory opening contact area 21 of the absorbent body 11 of the absorbent body 3 corresponds to the wearer's excretory opening (eg, shorts). ) is fixed to Thereby, the sanitary napkin 1 is attached to the clothes so that the warming agent holding sheet 13 of the warming body 5 corresponds to the lower abdomen of the wearer, and the herbal medicine material layer 45 of the absorbent body 3 corresponds to the excretory mouth, respectively. is fixed Then, in a state where the skin-side surface of the warm body 5 is in contact with the skin of the wearer's lower abdomen, and the skin-side surface of the absorbent body 3 is in contact with the skin near the excretory opening of the wearer, the sanitary napkin 1 is removed. used

In other words, in the sanitary napkin 1, when the absorbent body 3 is disposed on the garment so that the excretory opening contact area 21 of the absorbent body 11 contacts the wearer's excretory opening, the warming agent holding sheet 13 is mounted. It has the same shape as being arranged in a position corresponding to the lower abdomen of the ruler. Therefore, the distance between the excretory opening contact area 21 of the absorbent body 11 of the absorbent body 3 and the warming agent holding sheet 13 of the warm sensing body 5 is the distance between the wearer's excretory port and the lower abdomen (on the skin surface). distance) is approximately equal.

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 clothing and used, the warming agent 50 contained in the warming agent holding sheet 13 penetrates the liquid permeable sheet 7 and comes into contact with the wearer's skin. Thus, in the wearer's skin, the TRP channel of the warming agent contact portion in contact with the warming component can be efficiently activated, and a feeling of warmth can be efficiently imparted to the wearer's lower abdomen.

By imparting a feeling of warmth to the wearer's lower abdomen, the TRP channel of the warming agent contact portion that was in contact with the warming component in the skin of the wearer's lower abdomen is activated. As a result, heat is generated from the warming agent contact portion via the sympathetic nervous system, It can be expected to raise the temperature of the contact part of the warm component in a child's skin. As a result, it is expected that the wearer's menstrual pain will be alleviated by warming the site close to the uterus of the wearer and discharging the painful substance prostaglandin. It is expected to reduce the wearer's premenstrual syndrome, poor circulation, and menopausal disorders by warming the wearer's area close to the uterus. By promoting blood circulation (promoting lymph flow), it is expected to discharge waste products, improve cold air, improve fat burning, and improve immunity. In addition, when the effect of the herbal medicine material is to warm the body by improving blood flow or blood circulation, the sanitary napkin 1 can warm the body more by the synergistic effect of the warming agent and the herbal medicine material.

In this embodiment, as a preferable aspect, the solvent layer 51a is located in the skin side of the herbal medicine material layer 45. As shown in FIG. Therefore, when the body fluid is excreted on the sanitary napkin 1 and migrates and diffuses in the liquid-permeable sheet 7 and the absorbent body 11, the body fluid and the lipophilic solvent can reliably pass through the herbal medicine material. Therefore, the lipophilic component of the herbal medicine material can be dissolved by the lipophilic solvent, whereby the lipophilic component of the herbal medicine material can be made to reach the wearer's skin more.

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

The central portion in the width direction W of the sanitary napkin 1 is in contact with the wearer's excretory opening and a region near it, that is, a region of sensitive skin. Then, in this embodiment, as a preferable aspect, the solvent layers 51a (, 52a) are not arrange|positioned at the center part of the width direction W in the sanitary napkin 1 . That is, there are regions VM1 (, VM2) in which the oriental medicine material (lipophilic component of) of the herbal medicine material layer 45 is present, but the lipophilic solvent of the solvent layer 51a (, 52a) does not exist. . Therefore, it can make it difficult to transfer the lipophilic component of the herbal medicine material to the area|region which the area|region of sensitive skin contacts. Thereby, while making the lipophilic component of the herbal medicine material reach the area|region other than the central part of the width direction W of the sanitary napkin 1, it can suppress that the component directly reaches the area|region of sensitive skin. In addition, it is also considered that the oriental medicine material (water-soluble component) exists in the central part of the width direction W of the sanitary napkin 1, and the component easily transfers to the area|region of the excretory port and its vicinity. However, since the region is a region in which the body fluid from the excretory port is directly excreted, the amount of the component moving to the excretory port and the area in the vicinity thereof is suppressed to some extent.

In this embodiment, as a preferable aspect, a warming agent 51 (or a warming agent 52) having a warming function is further provided, which is positioned on at least one of the absorber 11 and the liquid-permeable sheet 7 . Therefore, by the air containing moisture such as sweat generated in the vicinity of the skin whose body temperature has increased due to the effect of the warming agent 51 (or the warming agent 52), the herbal medicine material is called and the surface area is increased, and the herbal medicine material It can be made easy to release the component of In addition, 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 component of the herbal medicine dissolved in the lipophilic solvent is added to water and/or It can be made easy to volatilize with a lipophilic solvent or alone. Thereby, the component of an herbal medicine material can be made to reach a wearer's skin more. Accordingly, when the effect of the herbal medicine material is to warm the body by improving blood flow or blood circulation, the sanitary napkin 1 can warm the body more by the synergistic effect of the warming agent and the herbal medicine material.

In this embodiment, as a preferable aspect, in plan view, the front side (ventral side) (in another embodiment, the back side (back side) is possible rather than the absorbent body 11 in the sanitary napkin 1 in the longitudinal direction L. , also referred to as "anterior (ventral side), etc.") and further includes a warming agent holding sheet 13 containing another warming agent 50 having a warming function. The liquid-permeable sheet 7 extends in the front side (back side) of the longitudinal direction L, etc. from the absorber 11 in plan view, and overlaps the thermosensitive agent holding sheet 13 in the thickness direction T, and the thermosensitive agent It is located on the skin side rather than the holding sheet 13 . Therefore, when the sanitary napkin 1 is put on the wearer, the part of the wearer's dorsal side (in another embodiment, it may be on the back side. Hereinafter also referred to as "the dorsal side etc.") is warmed with the warming agent 50 can do. Therefore, the ingredients of the herbal medicine material can reach the wearer's skin, and the dorsal side and the like can be warmed by other warming agents located on the anterior side (ventral side) and the like.

As another embodiment, the sanitary napkin 1 is positioned on at least one of the warming agent retention sheet 13 and the liquid permeable sheet 7, and contains another herbal medicine material having a water-soluble component and a lipophilic component. It is provided with the herbal medicine material layer 47, the other solvent layer 51b (, 50a) which is located in at least one of the warming agent holding|maintenance sheet 13 and the liquid permeable sheet|seat 7, and contains another lipophilic solvent. And a part of the other oriental medicine material layer 47 and a part of the other solvent layers 51b (, 50a) overlap in the thickness direction (T) or the like. That is, in the sanitary napkin 1, on the front side (ventral side) of the longitudinal direction L, etc., than the absorbent body 11, other herbal medicine materials and other lipophilic solvents partially overlap in the thickness direction T etc. It is positioned on at least one of the second holding sheet 13 and the liquid-permeable sheet 7 . Therefore, when the sanitary napkin 1 is worn on the wearer, the part such as the front side (ventral side) of the wearer is warmed with the warming agent 50, while the body temperature rises due to the effect of the warming agent 50 near the skin. The air containing moisture, such as sweat, which is generated can make it easier to release the components of the other herbal medicine materials by inflating the other herbal medicine materials and increasing the surface area. In addition, since the lipophilic solvent can be warmed by the air warmed by the effect of the warming agent 50, the components of other herbal medicines dissolved in the lipophilic solvent are mixed with water and/or solvent or alone. , can be easily volatilized. Thereby, the component of the other herbal medicine material on the front side of the longitudinal direction L can be made to reach the skin of the front side of a wearer in the longitudinal direction more.

In this embodiment, as a preferable aspect, the warming agents 50, 51, and 52 include a warming component that causes the wearer to perceive a feeling of warmth, and a solvent component that dissolves or disperses the warming component, and the solvent component is It is an oily solvent. Therefore, the warming agent 50, 51, 52 (the solvent component) can be used as the solvent layers 50a, 51a, 51b, and 52a, and there is no need to separately form the solvent layer, or the region of the solvent layer. Alternatively, the thickness may be reduced. Thereby, since the distance between the herbal medicine material layers 45 and 47 and/or the warming agents 50, 51 and 52 and the wearer's skin surface can be shortened, these herbal medicine material layers 45 and 47 and/or the warmth sensation can be shortened. The agents 50, 51, and 52 can be made to reach the wearer's skin more easily.

As an oriental medicine, there exist a plurality of types of herbal medicines or a mixture of extracts of these herbal medicines in order to enhance medicinal efficacy. Therefore, in this embodiment, as a preferred aspect, as the herbal medicine material, a herbal medicine containing a water-soluble component or an extract thereof and a herbal medicine containing a lipophilic component or an extract of the herbal medicine are used. Even in such a case, in the present absorbent article, by dissolving a water-soluble component in body fluid or moisture such as sweat, and dissolving a lipophilic component in a lipophilic solvent, the components of these herbal medicinal materials can reach the wearer's skin more. . Therefore, even if the herbal medicine material is a herbal medicine in which a plurality of herbal medicines or extracts thereof are mixed, the components of each herbal medicine or extracts thereof can be effectively used without isolating these herbal medicines or extracts of the herbal medicines.

In the sanitary napkin 1 of this embodiment, as a preferable aspect, in the longitudinal direction L, the distance between the width direction center line CW and the front edge 11E1 of the absorber 11 is the absorber 11. is configured to be longer than the distance between the front edge 11E1 of the sanitary napkin 1 and the front edge of the sanitary napkin 1 . Therefore, in the region on the front side of the sanitary napkin 1 in the longitudinal direction L, the region of the absorbent body 11 capable of absorbing body fluid can be sufficiently secured in the longitudinal direction L. Therefore, in the longitudinal direction L, when a sanitary napkin 1 having a warm body 5 on the front side and having a relatively long front part is attached to the underwear, there is concern about the protrusion of the front end part. Therefore, even if the wearer displaces the sanitary napkin 1 from the rear side more than necessary and wears it, the area of the absorbent body 11 in the front area of the sanitary napkin 1 can be sufficiently secured. It can prevent body fluid from leaking.

(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 warm body 5 . Simply put, the sanitary napkin 1a has a configuration in which the warm body 5 is removed from the sanitary napkin 1 . Hereinafter, the difference 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. 6 is a plan view showing a state in which the sanitary napkin 1a is deployed. 7 is a cross-sectional view taken along the longitudinal center line CL of the sanitary napkin 1a shown in FIG. 6 . 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. 9 is a schematic diagram showing the arrangement of the solvent layer 52a and the like of the sanitary napkin 1a.

The herbal medicine material layer 45a of the sanitary napkin 1a according to the present embodiment overlaps the range from one end to the other end of the absorbent body 11 in the thickness direction T in the longitudinal direction L. It differs from the herbal medicine material layer 45 of the sanitary napkin 1 which concerns on 1st Embodiment in that it is arrange|positioned. By arrange|positioning the oriental medicine material layer 45a in the longer range of the longitudinal direction L, the function of oriental medicine material can be heightened more. In another embodiment, the herbal medicine material layer 45a is arrange|positioned similarly to the herbal medicine material layer 45 of 1st Embodiment. Further, in another embodiment, the sanitary napkin 1a further includes the same warm body 5 as in the first embodiment.

(Each material in the sanitary napkin (1), etc.)

Next, each material etc. in the sanitary napkin 1 (the sanitary napkin 1a is included. The same applies hereafter.) in each embodiment is demonstrated.

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

Here, the herbal medicine material is a material containing an oriental medicine, and the oriental medicine is an agent containing an oriental medicine control (prescription) and a herbal medicine. A crude drug is an agent having medicinal ingredients obtained by processing and adjusting natural materials (eg, plants, animals, minerals) by a specific method. Herbal control is a combination of a plurality of herbal medicines. In addition, 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 oriental medicine, the combination thereof, or the mixing ratio thereof is not particularly limited. Examples of the oriental medicine material include the herbal medicines or herbal preparations described in the "Guideline for New General Oriental Medicine Prescriptions" (edited by the Association of Japanese Oriental Herbal Medicines, published in the Journal of Japanese Medicine), or extracts extracted from these herbal medicines or herbal medicines. Specific examples of oriental herb control include Gyejibokryeonghwan, Gamisoyosan, Angelica japonicasan, Ongyeongtang, Gunggwigyoaetang, Peony licorice soup, Donggwisayeok Gaosuyu ginger soup, Doinseunggitang, Rhubarb mokdanpitang, and Ojeoksan. As herbal medicines, Glue (阿膠), Aeyeop (艾葉), Health (乾薑), Licorice (甘草), Gilgyeong (桔梗), Licorice (枳實), Cinnamon (桂皮), Hubak (厚朴), Osuyu (吳) , Shiho (柴胡), Seshin (細辛), Sanchija (山梔子), Rehmannia (地黃), Peony (芍藥), Ginger (生薑), Celestial Gong, Creation (蒼朮), Rhubarb (大黃), Contrast (大黃)大棗), Taeksa (澤瀉), ginseng (陳皮), Donggwaja (冬瓜子), Angelica (當歸), Doin (桃仁), Ginseng (人蔘), Maekmundong (麥門冬), Mint (薄荷) (半夏), Guritdae, Baekchul (白朮), Bokryeong (茯笭), Mangcho (芒硝), Mokdanpi (牧丹皮), Ephedra (麻黃), and Moktong (木通) are exemplified.

There will be no restriction|limiting in particular as long as the lipophilic (oil-soluble, fat-soluble) component in these herbal medicine materials is soluble in a lipophilic solvent. Examples of such lipophilic components include fat-soluble polyphenols and gingerol, shogaol, and gingerron. The fat-soluble polyphenol can be extracted with a lipophilic solvent from, for example, angelica, chrysanthemum, and peony. Gingerol and the like (a component that warms the body) can be extracted from, for example, ginger with a lipophilic solvent.

On the other hand, as a water-soluble component in these herbal medicine materials, if it is soluble in the water|moisture content by a body fluid, sweat, etc., there will be no restriction|limiting in particular. As such a water-soluble component, a water-soluble polyphenol, pheniflorin, etc. are mentioned, for example. Water-soluble polyphenols can be extracted by water from, for example, Angelica, chrysanthemum, and peony. Peoniflorin (an analgesic component) can be extracted by water from, for example, peony.

It will not specifically limit, as long as it can melt|dissolve the lipophilic component which an herbal medicine material has as a lipophilic solvent. Examples of the lipophilic solvent include oils and fats. Examples of the fats and oils include natural oils such as vegetable oils and animal oils, hydrocarbons, and the like. Examples of the natural oil include fatty acid esters such as triglycerides, palm oil, and linseed oil. As a hydrocarbon, paraffin, such as liquid paraffin, etc. are mentioned, for example. In addition, the lipophilic solvent does not necessarily have to be in liquid form, and may be one arranged in a solid form in any one of the materials of the sanitary napkin 1, or may have volatility depending on temperature. In addition, the lipophilic solvent is in a liquid form in the manufacturing process of the sanitary napkin 1, but may be in a solid form at the time of product completion of the sanitary napkin 1, during storage or sale thereafter. However, at the time of use, it is assumed that it returns to a liquid form due to a rise in atmospheric temperature due to body temperature or the like.

In each of the above-described embodiments, the warming agent holding sheet 13, the liquid permeable sheet 7, and the absorber 11 include a warming agent 50 containing a warming component that activates the TRP channel and a solvent component; It has a warming agent 51 and a warming agent 52 .

Thermosensitizers 50 , 51 , 52 include, for example, a thermosensitive component and a solvent component that activate a TRP channel (thermoceptor (thermosensory receptor)). The warmth component is not particularly limited as long as it activates the TRP channel, and examples thereof include an agonist for TRPV1 receptor and an agonist for 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., so that a high sense of warmth can be imparted to the wearer.

The warmth component is preferably a plant-derived compound from the viewpoint of the wearer's safety. As the warming component, for example, capsicoside, capsaicin, capsaicinoids (dihydrocapsaicin, nordihydrocapsaicin, homodihydrocapsaicin, homocapsaicin, nonivamide, etc.), capsanthin, benzyl nicotinate, nicotinic acid β- Butoxyethyl, N-acylvanylamide, nonanoic acid vanillylamide, polyhydric alcohol, red pepper powder, red pepper tincture, red pepper extract, nonanoic acid vanillyl ether, vanillyl alcohol alkyl ether derivatives (e.g., vanillyl ethyl ether, bar Nilyl butyl ether, vanillyl pentyl ether, vanillyl hexyl ether), isovanilyl alcohol alkyl ether, ethyl vanillyl alcohol alkyl ether, veratryl alcohol derivative, substituted benzyl alcohol derivative, substituted benzyl alcohol alkyl ether, vanillin propylene glycol acetal, ethyl vanillin propylene glycol acetal, ginger extract, ginger oil, gingerol, gingerron, hesperidin, and pyrrolidonecarboxylic acid, and any combination thereof. Among these, the warming component is preferably not capsaicin from the viewpoint of hardly causing pain to the wearer, and a vanillyl alcohol alkyl ether derivative (eg, vanillyl ethyl ether, vanillyl butyl ether, vanillyl pentyl ether, vanillyl hexyl). ether), ginger extract, ginger oil, gingerol, and gingerron, and any combination thereof.

The solvent component is not particularly limited as long as it can contain a warming component, and examples thereof include a lipophilic solvent and a hydrophilic solvent. Such a solvent component can dissolve, disperse, and the like, a warming component. Examples of the lipophilic solvent include oils and fats. Examples of the fats and oils include natural oils (eg, fatty acid esters such as triglycerides, palm oil, linseed oil, etc.), hydrocarbons (eg, paraffin (eg, liquid paraffin)). Examples of the hydrophilic solvent include water and alcohol. Examples of the alcohol include lower alcohols such as methanol, ethanol, ethylene glycol and glycerin, and higher alcohols such as caprylic alcohol, lauryl alcohol and myristyl alcohol. Among these, as a solvent component, oil and fat (lipophilic solvent) or alcohol (hydrophilic solvent) are preferable from a viewpoint of being easy to control volatility, especially from a viewpoint of being easy to lower|hang volatility. Further, from the viewpoint of hardly impairing water absorption, 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 herbal medicine materials, whereby the sanitary napkin 1 can be made thinner and softer, and the feeling of wearing can be improved.

In addition, the warming agent 51 of the liquid-permeable sheet 7 and the warming agent 52 on the surface of the absorber 11, depending on the type of body fluid and the position to be applied, are formed in the lower layer (for example, the absorber 11, the absorber ( 11), it is preferable to coexist with a durable hydrophilic oil agent (durable hydrophilicizing agent) having a characteristic that it is difficult to flow out. That is, it is preferable to include a durable hydrophilic oil agent as a solvent component. The durable hydrophilic oil agent is not particularly limited, and those coated or kneaded onto the fibers can be employed 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 sulfonate salt, a mixture of an alkyl phosphate ester salt and a polyether-modified silicone, etc. can be heard Therefore, it is possible to suppress the transfer of the warming agents 51 and 52 to the lower layer by the body fluid. That is, it is possible to maintain the warming agent in a portion relatively close to the skin. Thereby, it becomes possible to further improve the durability of a warm feeling.

The concentration of the warming component of the warming agent (50 to 52) is preferably 1 to 50 mass%, more preferably 3 to 30 mass%, and still more preferably 5 to 15 mass%. It is in terms of the effect of warmth. In the sanitary napkin 1, the basis weight of the warming component in the warming agent 50 to 52 is preferably 0.001 to 30 g/m2, more preferably 0.01 to 20 g/m2, still more preferably is 0.1 to 10 g/m2. This is to give the wearer a sense of warmth.

In the case where the warming agents 50 to 52 contain a heating component as a warming component, the heating component is not particularly limited as long as the heating component itself generates heat. Examples of the exothermic component include metal powders such as iron powder (using heat of oxidation), acidic substances and alkaline substances (using heat of neutralization), and inorganic salts (using heat of hydration). In the case of using a heat generating component, when the sanitary napkin 1 is worn, the wearer's skin can be realistically warmed, so that the wearer can definitely feel the warmth.

The warming agent 50 , the warming agent 51 , and the warming agent 52 are water disintegrating properties in order to prevent volatilization or movement to another area until the sanitary napkin 1 is used. ) may be protected by a protective material, for example, microcapsules. The microcapsule contains a functional agent, and when it comes into contact with a liquid (eg, menstrual blood, urine, sweat), it collapses to release the functional agent to the outside. The released functional agent exerts a predetermined function on the wearer by vaporizing by the wearer's body temperature or the like or by contacting the wearer's skin.

As the material of the microcapsule, for example, saccharides such as monosaccharides (eg glucose), disaccharides (eg sucrose) and polysaccharides (eg dextrin, glucomannan, sodium alginate, water-soluble starch), gelatin, water-soluble polymers (eg polyvinyl) alcohol, polyvinyl acetate) and the like.

Microcapsules are commercially available, for example, INCAP (trademark) sold by Symrise, etc. are mentioned. In addition, microcapsules can be produced by, for example, dissolving the material of the microcapsules in water to form an aqueous solution, mixing a functional agent and a surfactant in the aqueous solution, and drying the aqueous solution under reduced pressure while spraying the aqueous solution.

In the sanitary napkin 1, the warming agents 50 to 52, in addition to the above-described warming component and solvent component, include at least one other substance having a desired action within the range that does not impair the effect of imparting a feeling of warmth to the wearer. ingredients may be included. Examples of such at least one other component include drugs such as antibacterial agents, skin astringents and anti-inflammatory agents, vitamins, amino acids, zeolites, hyaluronic acid, collagen, petrolatum, trehalose, pH adjusters, moisturizers, fragrances, and the like.

Unlike a heat-generating agent that generates heat by itself, the warming agent of the sanitary napkin 1 is difficult to cause low-temperature burns, and the adhesive portion 72 and the like are difficult to soften, so after using the sanitary napkin 1 When peeling off from an undergarment etc., the adhesive part 72 etc. are hard to remain on an undergarment etc., and it 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 fabrics (eg, nonwoven fabrics, woven fabrics, knitted fabrics) and perforated films. As the fabric, a nonwoven fabric is preferable from the viewpoint of easiness in manufacturing the sanitary napkin 1 . Examples of the non-woven fabric include air-laid pulp, air-through non-woven fabric, spun-bonded non-woven fabric, point-bonded non-woven fabric, spun lace non-woven fabric, needle punched non-woven fabric, melt blown non-woven fabric, and combinations thereof (eg, SMS). Especially, as a nonwoven fabric, an air-through nonwoven fabric is preferable. 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 the fibers constituting the fabric 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 fibers include rayon fibers. Semisynthetic fibers include, for example, semisynthetic cellulose fibers such as acetate fibers. As a synthetic fiber, a thermoplastic fiber is mentioned, for example. As the thermoplastic fiber, for example, a polyolefin-based polymer such as polyethylene or polypropylene, a polyester-based polymer such as polyethylene terephthalate (PET), polybutylene terephthalate or polypentylene terephthalate, nylon 6 or nylon 6,6 and fibers formed from a polyamide-based polymer, an acrylic polymer, a polyacrylonitrile-based polymer, or a modified product thereof, or a combination thereof. Examples of the perforated film include those in which a plurality of perforated portions are formed in a sheet of polyethylene or polypropylene.

In addition, it is preferable that the topsheet 7a is formed of hydrophilic fibers (eg, cotton, rayon, wool, silk). Thereby, it is possible to easily attract and retain moisture including sweat in the constituent fibers. Thereby, it is possible to make it difficult to leave moisture on the surface of the constituent fibers, to make it difficult to contact moisture with the skin, and to make it difficult to feel the cold on the skin. Thereby, it becomes possible to further improve the persistence of a feeling of warmth.

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 to dissipate the air warmed by the warming effect of the warming agent 50 from the area between the liquid-impermeable sheet 9 and the skin. Examples of the material of the liquid-impermeable sheet 9 include a synthetic resin film such as polyethylene or polypropylene, a synthetic resin film bonded to a nonwoven fabric such as spunbond or spunlace, and a multilayer nonwoven fabric such as SMS, A synthetic resin film having impermeability 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, as the material of the warming agent holding sheet 13, for example, those listed as the material of the liquid-permeable sheet 7, or a warming agent 50 such as a porous resin sheet such as a sponge sheet The impregnable thing is mentioned. Specifically, when the solvent component of the warming agent 50 is a lipophilic solvent, a synthetic fiber fabric, for example, a nonwoven fabric, a woven fabric, a knitted fabric, etc. is mentioned, Preferably, the synthetic fiber nonwoven fabric is mentioned. When the solvent component of the warming agent is a hydrophilic solvent, for example, a fabric composed of cellulose fibers, for example, a nonwoven fabric, a woven fabric, a knitted fabric, etc., preferably a tissue composed of pulp fibers, and an air-laid pulp. have. Further, as another embodiment, when a thermal insulation body having a thermal insulation function is used instead of the thermal sensation main body 5, the material of the thermal insulation sheet to be substituted for the thermal sensation agent holding sheet 13 is, for example, the warming agent holding sheet 13 . and those listed as the material of, in this case, the warming agent 50 is not impregnated.

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

In the sanitary napkin 1, as a material for the adhesive parts 71, 72, 73, etc., 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; and a water-sensitive adhesive containing a water-soluble polymer (eg, polyvinyl alcohol, carboxymethyl cellulose, gelatin, etc.) or a water-swellable polymer (eg, polyvinyl acetate, sodium polyacrylate, etc.).

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

The absorbent article (eg, sanitary napkin) of the present invention is not limited to each of the above-described embodiments, and combinations of the embodiments or known techniques are applied within the scope not departing from the object and spirit of the present invention. can do, etc.

1: Sanitary napkin 7: Liquid permeable sheet (sheet member)
9: Liquid impermeable sheet 11: Absorbent body
51, 52: Warming agent 60: Absorbent pressing portion (absorbent concave portion)
67: sheet crimping portion (seat member recessed portion)

Claims (9)

An absorbent article comprising: an absorbent body; and a sheet member overlapping the absorber in the thickness direction and positioned on the skin side from the absorbent body, the sheet member having liquid permeability;
an oriental medicine material layer disposed on at least one of the absorbent body and the sheet member and comprising an oriental medicine material having a water-soluble component and a lipophilic component;
A solvent layer positioned on at least one of the absorber and the sheet member and containing a lipophilic solvent
is provided,
An absorbent article in which a part of the oriental 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. The absorbent article according to claim 1, wherein the solvent layer is located on the skin side from the oriental medicine material layer. The absorbent article according to claim 2, wherein the solvent layer is further located on the non-skin side of the herbal medicine material layer. The absorbent article according to any one of claims 1 to 3, wherein the solvent layer is not disposed in the central portion of the width direction. The absorbent article according to any one of claims 1 to 3, further comprising a warming agent positioned on at least one of the absorbent body and the sheet member and having a warming function. The warming agent according to any one of claims 1 to 3, which is located in at least one of the front side and the rear side in the longitudinal direction from the absorbent body in the absorbent article in plan view, and has a warming function. Further comprising a warmth member comprising:
The sheet member extends in at least one of the front and rear sides in the longitudinal direction from the absorbent body in plan view, overlaps the warm-sensitive member in the thickness direction, and is located on the skin side of the warm-sensitive member. 7. The method according to claim 6, further comprising: another oriental medicine material layer located on at least one of the warm feeling member and the sheet member and comprising another herbal medicine material having a water-soluble component and a lipophilic component;
Another solvent layer positioned on at least one of the warm-sensitive member and the sheet member and containing another lipophilic solvent
provide more,
An absorbent article in which a part of the other 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 method of claim 5, wherein the warming agent,
A warming component that allows the wearer to perceive a feeling of warmth,
A solvent component that dissolves or disperses the warmth component.
including,
The said solvent component is the said lipophilic solvent, The absorbent article. The herbal medicine material according to any one of claims 1 to 3, wherein 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 the lipophilic component or an extract of the crude drug. absorbent article.

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