TWI711436B - Temperature-sensitive items - Google Patents

Abstract

The object of the present invention is to provide a warm-sensitive article that is not easy to give a stimulus to the wearer. The temperature-sensitive article of the present invention has the following structure. A temperature-sensitive article (1), comprising: a liquid-permeable sheet (7), a liquid-impermeable sheet (9), and a second between the liquid-permeable sheet (7) and the liquid-impermeable sheet (9) Sheet (13), the temperature-sensitive article (1) is characterized in that: the temperature-sensitive article (1) contains a temperature-sensitive solution, and the temperature-sensitive solution contains: a temperature-sensitive agent that activates the TRP ion channel, and a solvent, and the presence of liquid permeates The solution density of the temperature-sensitive solution of the sexual flake (7) is different from the solution density of the temperature-sensitive solution in the second flake (13).

Description

Temperature-sensitive items

The present invention relates to temperature-sensitive articles.

There are known warm-sensitive articles that give the wearer a higher temperature sensation than the body temperature or a lower temperature sensation than the body temperature. In particular, from the viewpoint of preventing low-temperature burns, temperature-sensitive articles that impart a high-temperature sensation, compared with those containing a heat-generating agent that cause physical heat, have an effect on the skin of the wearer and increase the temperature of the wearer’s skin. It is ideal to promote such a role.

Patent Document 1 describes an absorbent article, which is ideally a disposable absorbent article for sanitary use, which is intended to improve comfort and contains no external conditions that can be felt by the wearer. An agent that conveys feelings to the user. In addition, the paragraph [0040] of Patent Document 1 describes that a warming agent is used as an ideal agent, and the warming agent does not have to produce a temperature change on the body surface of the wearer, and can stimulate the temperature receptor (also That is, warm). [Prior Technical Literature] [Patent Literature]

[Patent Document 1] JP 2004-528090 Publication

[The problem to be solved by the invention]

The inventors of the present case have verified that the temperature-sensitive article containing a temperature-sensing agent (warming agent) described in Patent Document 1 has a low temperature-sensing effect at the initial stage of installation, and that after the installation by the user, that is, After detaching the temperature-sensitive article, the skin contacting part of the temperature-sensitive imparting agent for a predetermined period of time easily feels irritation during bathing.

In addition, the inventors of the present case have confirmed that if such a warming agent described in Patent Document 1 is combined with a lipophilic solvent such as oil, and a heat generating agent such as iron powder, a warming agent, and a hydrophilic solvent (water, etc.) are combined In general, the time until the desired temperature is felt (warm feeling time) tends to be longer. Moreover, the aforementioned warm feeling time may also vary depending on the presence or absence of moisture such as sweat of the wearer. However, if the temperature sensation time becomes longer, especially in the initial stage of installation, the user will easily feel irritation, especially itching. Therefore, the object of the present invention is to provide a warm-sensitive article that is not easy to give the wearer a stimulating feeling. [Means to solve the problem]

The inventors found a temperature-sensitive article comprising: a liquid-permeable sheet, a liquid-impermeable sheet, and a second sheet between the liquid-permeable sheet and the liquid-impermeable sheet. The temperature-sensitive article is characterized by Each of the liquid-permeable sheet and the second sheet includes a temperature-sensitive solution containing a temperature-sensitive agent that activates TRP ion channels and a solvent, the solution density of the temperature-sensitive solution in which the liquid-permeable sheet is present, and the The solution density of the temperature-sensitive solution of the second sheet is different. [Effects of the invention]

The temperature-sensitive article of the present invention is not easy to give the wearer a sense of stimulation.

The present invention includes the following aspects. [Pattern 1] A temperature-sensitive article comprising: a liquid-permeable sheet, a liquid-impermeable sheet, and a second sheet between the liquid-permeable sheet and the liquid-impermeable sheet, the temperature-sensitive article is characterized by: The above-mentioned temperature-sensitive article includes a temperature-sensitive solution containing a temperature-sensitive agent that activates TRP ion channels, and a solvent, The solution density of the temperature-sensitive solution in the liquid-permeable sheet and the solution density of the temperature-sensitive solution in the second sheet are different.

In the above-mentioned temperature-sensitive article, since the solution density of the temperature-sensitive solution in the liquid-permeable sheet and the solution density of the temperature-sensitive solution in the second sheet are different, it is difficult to give the wearer an irritation. Specifically, when the solution density of the temperature-sensitive solution with the liquid-permeable sheet is higher than the solution density of the temperature-sensitive solution with the second sheet, the effect of Invention A described later can be obtained, and the temperature of the liquid-permeable sheet When the solution density of the sensitive solution is lower than the solution density of the temperature sensitive solution in which the second sheet is present, the effect of Invention B described later can be obtained.

In addition, in aspect 1, when the solution density of the temperature-sensitive solution with the liquid-permeable sheet is zero, that is, if the liquid-permeable sheet does not contain the temperature-sensitive solution, the solution density of the temperature-sensitive solution with the second sheet is When it is zero, that is, it includes the case where the second sheet does not contain a temperature-sensitive solution.

In addition, the present invention further includes the following invention A (aspect A group) and invention B (aspect B). ＜Invention A (Aspect A group)＞ [Pattern A1] A temperature-sensitive article comprising: a liquid-permeable sheet, a liquid-impermeable sheet, and the non-skin-contacting sheet adjacent to the liquid-permeable sheet and having a skin-contacting surface and a non-skin-contacting surface. The second sheet is made of fabric and has a thickness direction. The temperature-sensitive article is characterized by: The temperature-sensitive article is provided with a temperature-sensing area containing a temperature-sensing solution, the temperature-sensing solution comprising: a temperature-sensing agent arranged on the liquid-permeable sheet and the second sheet to activate TRP ion channels, and Solvent, In the temperature-sensing region, the solution density of the temperature-sensing solution in which the liquid-permeable sheet is present is higher than the solution density of the temperature-sensing solution in the second sheet.

The inventors of the present application found that the temperature-sensitive article containing the temperature-sensitive agent has weak warm-sensitive effect at the initial stage of installation due to the characteristics of the temperature-sensitive agent. In particular, when the solvent of the temperature-imparting solution is a lipophilic solvent, since the temperature-imparting agent does not easily penetrate the skin of the wearer, there is a tendency that the warming effect at the initial stage of application is weak. In addition, the inventors of the present invention found that, in a temperature-sensitive article in which the temperature-sensing agent is a high-temperature-sensing agent that imparts a high-temperature sensation, since the high-temperature sensation in the initial stage of installation is used for the high-temperature sensation of time, the wearer easily feels itching.

Furthermore, the inventor of the present invention found that even after the wearer has used it, that is, even if the temperature-sensitive article is removed, the wearer is likely to continue to feel the warm sensation (high temperature or low temperature) at a predetermined time. It is easy to feel irritation at the contact part of the skin which comes into contact with the warm feeling imparting agent during bathing. Furthermore, the inventors of the present invention found that even when a strong sense of temperature (high temperature or low temperature) is imparted in the initial stage of installation, and a weak sense of temperature (high temperature or low temperature) is imparted in the middle and late stages of installation, the installation The user easily feels a moderate temperature (high temperature or low temperature).

In the above-mentioned temperature-sensitive article, in the temperature-sensing area, the solution density of the temperature-imparting solution in which the liquid-permeable sheet is present is higher than the solution density of the temperature-imparting solution in the second sheet. Therefore, in the initial stage of installation, there is a relatively high-density temperature imparting solution with liquid-permeable sheets. In the initial stage of installation, the temperature-sensitive article gives the user a strong sense of temperature, and the user can feel the appropriateness in the initial stage of installation. The warmth. In addition, in the temperature-sensitive article of the high-temperature sensation imparting agent that imparts a high-temperature sensation as a temperature-sensation imparting agent, it is not easy to feel itching at the initial stage of loading.

In addition, in the middle and late stages of loading, if the amount of the temperature-imparting solution present in the liquid-permeable sheet decreases, the relatively low-density temperature-imparting solution that exists in the second sheet moves to the liquid-permeable sheet. Gives the wearer a weak sense of warmth, but the wearer can feel an appropriate sense of warmth. On the other hand, when the wearer removes the warm-sensitive article after loading, he touches the skin contact part of the warming agent Not easy to feel irritation.

[Pattern A2] The temperature-sensitive article according to aspect A1, wherein the fiber density of the fabric constituting the liquid-permeable sheet is higher than the fiber density of the fabric constituting the second sheet in the temperature-sensitive imparting area.

In the above-mentioned temperature-sensitive article, since the fiber density of the fabric constituting the liquid-permeable sheet is higher than the fiber density of the fabric constituting the second sheet, the temperature-sensitive article is pressurized before or during loading. When the sensation-imparting solution temporarily moves, the sensation-imparting solution also easily returns to satisfy the predetermined solution density relationship of the sensation-imparting solution. As a result, the wearer is less likely to feel itching at the initial stage of use, and after the wearer removes the warm-sensitive article, it is difficult for the wearer to feel irritation at the skin contact part that touches the warm-feeling agent.

[Pattern A3] The temperature-sensitive article according to aspect A1 or A2, wherein the solvent is a lipophilic solvent, and the lipophilicity of the fabric constituting the liquid-permeable sheet is higher than the lipophilicity of the fabric constituting the second sheet.

In the temperature-sensitive article, the solvent is a lipophilic solvent, and at the same time, since the lipophilicity of the fabric constituting the liquid-permeable sheet is higher than that of the fabric constituting the second sheet, the temperature-sensitive article is used for packaging Even when the temperature-imparting solution is subjected to pressure before or during loading, the temperature-imparting solution is easily returned to satisfy the predetermined solution density relationship of the temperature-imparting solution even when the temperature-imparting solution temporarily moves. As a result, the wearer is less likely to feel itching at the initial stage of use, and after the wearer removes the warm-sensitive article, it is difficult for the wearer to feel irritation at the skin contact part that touches the warm-feeling agent.

[Pattern A4] The temperature-sensitive article according to aspect A1 or A2, wherein the solvent is a hydrophilic solvent, and the degree of hydrophilicity of the fabric constituting the liquid-permeable sheet is higher than that of the fabric constituting the second sheet.

In the above-mentioned temperature-sensitive article, the solvent is a hydrophilic solvent, and since the hydrophilicity of the fabric constituting the liquid-permeable sheet is higher than that of the aforementioned fabric constituting the second sheet, the temperature-sensitive article is used for packaging Even when the temperature-imparting solution is subjected to pressure before or during loading, the temperature-imparting solution is easily returned to satisfy the predetermined solution density relationship of the temperature-imparting solution even when the temperature-imparting solution temporarily moves. As a result, the wearer is less likely to feel itching at the initial stage of use, and after the wearer removes the warm-sensitive article, it is difficult for the wearer to feel irritation at the skin contact part that touches the warm-feeling agent.

[Pattern A5] The temperature-sensitive article according to aspect A1 or A2, wherein the range in which the temperature-sensitive article and the temperature-sensitive imparting region overlap in the thickness direction further includes a second sheet on the opposite side of the liquid-permeable sheet A third sheet composed of a fabric adjacent to the surface and constituting the temperature-imparting region. In the temperature-imparting region, the solution density of the temperature-imparting solution in the third sheet is higher than that of the second sheet. The solution density imparted to the solution is lower.

The temperature-sensitive article described above is in the temperature-imparting area, and the solution density of the temperature-imparting solution in which the liquid-permeable sheet is present is higher than that of the temperature-imparting solution in the second sheet. Therefore, in the initial stage of installation, there is a relatively high-density temperature imparting solution with liquid-permeable sheets. In the initial stage of installation, the temperature-sensitive article gives the user a strong sense of temperature, and the user can feel the appropriateness in the initial stage of installation. The warmth. In addition, in the temperature-sensitive article of the high-temperature sensation imparting agent that imparts a high-temperature sensation as a temperature-sensation imparting agent, it is not easy to feel itching at the initial stage of loading.

In addition, in the middle of loading, if the amount of the temperature-imparting solution present in the liquid-permeable sheet decreases, the relatively medium-density temperature-imparting solution that exists in the second sheet moves to the liquid-permeable sheet, and then it is applied to the user Moderate warmth, but the wearer can feel the appropriate warmth. On the other hand, when the warm-sensitive article is removed after installation, the wearer will not easily feel irritation at the skin contact part of the warming agent .

Next, there is a liquid-permeable sheet, and if the relatively medium-density temperature-imparting solution moves to the wearer’s skin and is consumed, the relatively low-density temperature-imparting solution that exists in the third sheet moves to the liquid-permeable sheet through the second sheet. In the later stage of the application, the relatively low-density temperature imparting solution that moves from the liquid-permeable sheet to the skin of the wearer can impart a weak warming effect to the skin of the wearer. In addition, if the wearer's skin feels warm at a time, even if a weak warming effect is imparted to the wearer's skin, the wearer can continue to feel an appropriate warm feel.

Then, when the user finishes the use of the temperature-sensitive article and takes off the temperature-sensitive article for bathing, etc., in the later stage of the installation, because of the relatively low-density temperature imparting solution caused by the warming effect, the user It is not easy to feel irritation at the contact part of the skin that touches the warm feeling imparting agent due to hot water or the like.

[Pattern A6] The temperature-sensitive article according to aspect A5, wherein, in the temperature-sensitive imparting area, the fiber density of the fabric constituting the third sheet is lower than the fiber density of the fabric constituting the second sheet.

In the above-mentioned temperature-sensitive article, the solution density of the temperature-imparting solution due to the presence of the liquid-permeable sheet is higher than the solution density of the temperature-imparting solution in the presence of the second sheet, and the fiber density of the fabric constituting the third sheet is higher than that of the second sheet The fiber density of the fabric is lower, so the temperature-sensitive article is pressurized before or during loading. Even if the temperature-imparting solution temporarily moves, the temperature-imparting solution can easily satisfy the predetermined solution of the temperature-imparting solution Density returns. As a result, the wearer is less likely to feel itching at the initial stage of use, and after the wearer removes the warm-sensitive article, it is difficult for the wearer to feel irritation at the skin contact part that touches the warm-feeling agent.

[Pattern A7] The temperature-sensitive article according to aspect A5 or A6, wherein the solvent is a lipophilic solvent, and the lipophilicity of the fabric constituting the liquid-permeable sheet is higher than the lipophilicity of the fabric constituting the second sheet, The lipophilicity of the fabric constituting the third sheet is lower than the lipophilicity of the fabric constituting the second sheet.

In the above-mentioned temperature-sensitive article, while the solvent constituting the temperature-imparting solution is a lipophilic solvent, since the lipophilicity of the fabric constituting the liquid-permeable sheet is higher than that of the fabric constituting the second sheet, the third sheet is constituted The lipophilicity of the fabric is lower than that of the fabric constituting the second sheet. Therefore, the temperature-sensitive article is pressurized before or during loading, even if the temperature-imparting solution temporarily moves The solution is also easy to return while satisfying the predetermined solution density relationship of the temperature sensation imparting solution. As a result, the wearer is less likely to feel itching at the initial stage of use, and after the wearer removes the warm-sensitive article, it is difficult for the wearer to feel irritation at the skin contact part that touches the warm-feeling agent.

[Pattern A8] The temperature-sensitive article according to aspect A5 or A6, wherein the solvent is a hydrophilic solvent, and the degree of hydrophilicity of the fabric constituting the liquid-permeable sheet is higher than that of the fabric constituting the second sheet, The degree of hydrophilicity of the fabric constituting the third sheet is lower than the degree of hydrophilicity of the fabric constituting the second sheet.

In the above-mentioned temperature-sensitive article, while the solvent constituting the temperature-sensitive imparting solution is a hydrophilic solvent, the hydrophilicity of the fabric constituting the liquid-permeable sheet is higher than that of the fabric constituting the second sheet, constituting the third sheet The degree of hydrophilicity of the fabric of the second sheet is lower than that of the fabric constituting the second sheet. Therefore, the temperature-sensitive article is pressurized before or during installation, even if the temperature-sensing solution temporarily moves, the temperature-sensing The solution is also easy to return while satisfying the predetermined solution density relationship of the temperature sensation imparting solution. As a result, the wearer is less likely to feel itching at the initial stage of use, and after the wearer removes the warm-sensitive article, it is difficult for the wearer to feel irritation at the skin contact part that touches the warm-feeling agent.

[Aspect A9] The temperature-sensitive article as described in any one of the aspects A1 to A8, wherein the thickness of the liquid-permeable sheet is less than the thickness under a load of 3 g/cm ² relative to the thickness under a load of 30 g/cm ² The thickness retention ratio of the ratio is smaller than the thickness retention ratio of the second sheet.

In the above-mentioned temperature-sensitive article, because the retention rate of the thickness of the liquid-permeable sheet is smaller than that of the second sheet, that is, because the liquid-permeable sheet is more likely to collapse than the second sheet, body pressure, etc. When applied to a temperature-sensitive article, the thickness of the liquid-permeable sheet tends to become thin, and the solution that maintains the warm feeling of the liquid-permeable sheet can easily move to the skin of the wearer.

[Pattern A10]

The temperature-sensitive article according to aspect A9, wherein the liquid-permeable sheet has a retention rate of the thickness of 70% or less.

In the above-mentioned temperature-sensitive article, because the liquid-permeable sheet has a predetermined thickness retention rate, it is easy to reduce the thickness of the liquid-permeable sheet due to body pressure or the like applied to the temperature-sensitive article, and maintain the warm feeling of the liquid-permeable sheet The imparting solution easily moves to the skin of the wearer.

[Pattern A11]

The temperature-sensitive article according to any one of the aspects A1 to A10, wherein, in the thickness direction of the temperature-sensitive article, the thickness of the region where the temperature-sensitive article and the temperature-sensing imparting region overlap is less than that of the temperature-sensitive article The thickness of the region corresponding to the above-mentioned temperature sensation imparting region is thicker.

In the above-mentioned temperature-sensitive article, since the thickness of the region overlapping with the temperature-sensitive article of the temperature-sensitive article is thicker than the thickness of the region that does not overlap with the temperature-sensitive article, it is easy to push due to pressure, etc. Into the area of the temperature-sensitive article overlapping with the temperature-sensitive area, it is easy to release the temperature-sensitive solution from the temperature-sensitive area.

[Pattern A12]

The temperature-sensitive article as described in any one of aspects A1 to A11, wherein the temperature-sensing imparting agent is a high-temperature-sensing imparting agent acting as an agent acting on TRPV1 receptors, or an effect acting on TRPM8 receptors The low temperature feeling imparting agent of the agent.

In the above-mentioned temperature-sensitive article, since the temperature-sensing agent is composed of a predetermined high-temperature feeling-imparting agent or a predetermined low-temperature feeling-imparting agent, it can impart a strong temperature feeling (high temperature feeling, low temperature feeling) to the wearer.

[Pattern A13]

The temperature-sensitive article described in any one of the aspects A1 to A12, wherein the above-mentioned temperature-sensitive article is formed from a group of sanitary napkins, sanitary pads, disposable diapers and underwear-type sanitary napkins. select.

The above-mentioned temperature-sensitive articles are selected from the group consisting of sanitary napkins, sanitary pads, disposable diapers, and underwear-type sanitary napkins. Therefore, they can provide the wearer while exhibiting absorption performance. Warmth.

[Pattern A14]

The temperature-sensitive article according to any one of the aspects A1 to A13, wherein the temperature-sensitive article does not contain a heat-generating agent.

Because the above-mentioned temperature-sensitive article does not contain a heat-generating agent, even when the temperature-sensitive article is used for a long time, it is not easy to cause low-temperature burns to the user.

＜Invention B (Aspect B group)＞ [Pattern B1] A temperature-sensitive article comprising: a liquid-permeable sheet, a liquid-impermeable sheet, and a second sheet between the liquid-permeable sheet and the liquid-impermeable sheet, the temperature-sensitive article is characterized by: The second sheet is made of fabric and contains a temperature-sensitive solution containing a temperature-sensitive agent for activating TRP ion channels and a solvent.

The inventors of the present invention found that the temperature-sensitive article containing a temperature-sensitive agent tends to have a longer time to feel the desired temperature (warming sensation time) than that of a heat-generating article containing a heat-generating agent (for example, iron powder). During this warm feeling time, the wearer easily feels itching. In addition, the inventors of the present invention found that the temperature-sensitive article containing a temperature-sensitive agent is compared with a heat-generating article containing a heat-generating agent (such as iron powder), depending on the condition of the wearer’s skin (such as the dryness of the wearer’s skin, etc.) , There is a difference in the way of feeling warm. For example, when the skin of the wearer is moistened with water, it is easier to maintain the swelling state of the main stratum corneum of the wearer’s skin than when the wearer’s skin is dry. The warm solution is mainly easy to reach the presence of keratinocytes (keratinocytes). Cell) TRP ion channel, so it is easy to feel warm (the warm feeling time is short).

The above-mentioned temperature-sensitive article is that the user pushes the part of the temperature-sensitive article that overlaps with the temperature-sensitive solution into the thickness direction of the temperature-sensitive article, releases the temperature-sensitive solution from the second sheet, and passes through the warmth of the liquid-permeable sheet When the solution reaches the skin of the wearer, it can further give the wearer a sense of warmth compared to before pushing in. When the sense of warmth is insufficient, the wearer can increase the sense of warmth. The above-mentioned warm-sensitive article has excellent elasticity and strain. In addition, as a result of the TRP ion channel of the warming agent contacting part of the warming agent in the skin of the wearer activating the warming agent, heat is generated from the warming agent contacting part via the sympathetic nervous system, and it is expected that The temperature of the part in contact with the warming agent of the wearer's skin rises.

[Pattern B2] The temperature-sensitive article according to aspect B1, wherein the solvent is a lipophilic solvent.

When the solvent constituting the temperature-sensitive solution is a lipophilic solvent, the above-mentioned solvent is a hydrophilic solvent. For example, compared with the case of water, the volatility of the solvent can be adjusted. Specifically, the volatility can be reduced, and the packaging of temperature-sensitive articles can be easily packaged. . On the other hand, the inventors of this case have confirmed that when a lipophilic solvent is selected as the solvent constituting the temperature-sensitive solution, compared with the case where the solvent constituting the temperature-sensitive solution is a hydrophilic solvent, such as water, the above-mentioned warming sensation time will occur Tendency to grow

The above-mentioned temperature-sensitive article is that the user pushes in the temperature-sensitive article to release the temperature-sensitive solution from the second sheet, move to the liquid-permeable sheet, and reach the skin of the user through the temperature-sensitive solution of the liquid-permeable sheet, and The comparison before push-in can further give the wearer a sense of warmth. When the sense of warmth is insufficient, the wearer can increase the sense of warmth. The above-mentioned warm-sensitive articles are superior in elasticity and strain.

[Pattern B3] The temperature-sensitive article according to aspect B2, wherein the lipophilicity of the fabric of the second sheet is higher than that of the liquid-permeable sheet.

In the above-mentioned temperature-sensitive article, since the solvent of the temperature-sensitive solution is a lipophilic solvent, and the lipophilicity of the fabric constituting the second sheet is higher than that of the liquid-permeable sheet, the temperature-sensitive solution containing the lipophilic solvent is better The liquid-permeable sheet is more likely to exist in the second sheet, and when the user pushes in the temperature-sensitive article, the temperature-sensitive solution is released from the second sheet and moves to the liquid-permeable sheet. When the solution reaches the skin of the wearer, it can impart further warmth to the wearer, and if the wearer stops pushing the warm-sensitive article, due to the lipophilicity of the fabric of the second sheet and the lipophilicity of the liquid-permeable sheet The temperature difference, the warm solution reaching the skin of the wearer slowly returns to the second sheet. Therefore, it is easier for the wearer to control the temperature feeling, and the above-mentioned temperature-sensitive article has excellent elastic strain.

[Pattern B4] The temperature-sensitive article according to any one of aspects B1 to B3, wherein the liquid-permeable sheet is composed of a fabric, and the fiber density of the fabric of the second sheet is higher than the fiber density of the fabric of the liquid-permeable sheet The density is higher.

The above-mentioned temperature-sensitive article has a higher fiber density than that of the fabric constituting the liquid-permeable sheet. Therefore, the user pushes the temperature-sensitive article into the second sheet and releases the temperature-sensitive solution from the second sheet. Move to the liquid-permeable sheet, and the warm solution passing through the liquid-permeable sheet reaches the skin of the wearer. Compared with before pushing in, it can give the wearer a more warm feeling, and if the wearer stops pushing in For the sensitive article, due to the difference between the fiber density of the fabric constituting the second sheet and the fiber density of the fabric constituting the liquid-permeable sheet, the warm solution reaching the skin of the wearer slowly returns to the second sheet. Therefore, it is easier for the wearer to control the temperature feeling, and the above-mentioned temperature-sensitive article has excellent elastic strain.

[Aspect B5] The temperature-sensitive article according to any one of aspects B1 to B4, wherein the thickness of the liquid-permeable sheet under a load of 30 g/cm ² is 70 of the thickness under a load of 3 g/cm ² %the following.

Since the thickness of the above-mentioned temperature-sensitive article is within a predetermined range when loaded, the thickness of the liquid-permeable sheet becomes thinner when the user pushes the temperature-sensitive article, and the temperature-sensitive solution held by the liquid-permeable sheet easily moves to the user Skin. Therefore, the above-mentioned temperature-sensitive article has excellent elastic strain.

[Pattern B6] The temperature-sensitive article according to aspect B1 or B2, wherein the liquid-permeable sheet is composed of an apertured film.

Since the liquid permeable sheet of the above-mentioned temperature-sensitive article is composed of an apertured film, the user pushes in the temperature-sensitive article to release the temperature-sensitive solution from the second sheet, and the temperature-sensitive solution passes through the liquid-permeable sheet to reach the packaging. The skin of the wearer can further give the wearer a sense of warmth compared to before the push, and if the wearer pushes in the warm-sensitive article, it reaches the warming solution of the wearer's skin and slowly returns to the second sheet. Therefore, it is easier for the wearer to control the temperature feeling, and the above-mentioned temperature-sensitive article has excellent elastic strain.

[Pattern B7] The temperature-sensitive article according to any one of aspects B1 to B6, wherein in the thickness direction of the temperature-sensitive article, the thickness of the region overlapping with the temperature-sensitive solution of the temperature-sensitive article is greater than that of the temperature-sensitive article The thickness of the region where the temperature-sensitive solution does not overlap is thicker.

Since the thickness of the above-mentioned temperature-sensitive article overlaps with the temperature-sensitive solution is thicker than the thickness of the area that does not overlap with the temperature-sensitive solution, it is easy for the user to push into the area overlapping with the temperature-sensitive solution, and then it is easy to remove from the second sheet. Release a warm solution. Therefore, it is easier for the wearer to control the temperature feeling, and the above-mentioned temperature-sensitive article has excellent elastic strain.

[Pattern B8] The temperature-sensitive article described in any of the aspects B1 to B7, wherein the above-mentioned temperature-sensitive article can be formed from sanitary napkins, sanitary pads, disposable diapers, and underwear-type sanitary napkins Group selection. The temperature-sensitive articles are selected from the group consisting of sanitary napkins, sanitary pads, disposable diapers, and underwear-type sanitary napkins. Therefore, the temperature-sensitive articles exhibit absorption performance while suppressing the temperature sensation. Feeling the itching of the lower abdomen of the wearer of time can impart a warm feeling to the lower abdomen of the wearer.

<Invention A> [definition] ・「Temperature」 In the present invention (Invention A), the "sensation of temperature" includes the "sensation of high temperature" that is higher than the body temperature (36°C) and the "sensation of low temperature" that is lower than the body temperature (36°C). ・"Temperature imparting agent" In the present invention (Invention A), the "temperature sensation imparting agent" includes the "high temperature sensation imparting agent" that imparts the aforementioned high temperature sensation, and the "low temperature sensation imparting agent" that imparts the aforementioned low temperature sensation.

・"Temperature imparting solution" In the present invention (Invention A), the "temperature sensation imparting solution" includes a "high temperature sensation imparting solution" containing the above-mentioned high temperature sensation imparting agent, and a "low temperature sensation imparting solution" containing the above-mentioned low temperature sensation imparting agent. ・"Temperature imparting area" In the present invention (Invention A), the "temperature sensation imparting region" includes the "high temperature sensation imparting region" containing the above-mentioned high temperature sensation imparting solution, and the "low temperature sensation imparting region" containing the aforementioned low temperature sensation imparting solution.

・"Warm feeling time" In the present invention (Invention A), the "temperature sensation time" includes the "high temperature sensation time" during which the desired high temperature sensation is sensed by the high temperature sensation imparting agent, and the desired low temperature sensation by the low temperature sensation imparting agent "Low temperature perception time".

・"Predetermined solution density relationship of the temperature-sensing imparting solution" In the present invention (Invention A), the case where "the temperature-imparting area with the liquid-permeable sheet has a higher solution density than the temperature-imparting solution in the second sheet" is referred to as " The temperature sensation gives the solution a predetermined solution density relationship". Furthermore, in the present invention (Invention A), when the temperature-sensitive article further includes a third sheet, the temperature-sensitive-imparting solution having a liquid-permeable sheet in the temperature-sensitive area has a higher solution density than that of the second sheet. The density of the solution imparted to the solution is higher, and the density of the solution with the temperature imparting solution of the fabric constituting the third sheet is lower than that of the fabric constituting the second sheet." Feel the predetermined solution density relationship of the solution". In addition, the predetermined solution density relationship of the temperature sensation imparting solution includes: the "high temperature sensation imparting solution predetermined solution density relationship" regarding the high temperature sensation imparting agent and the high temperature sensation imparting solution, and the low temperature sensation imparting agent and the low temperature sensation imparting solution "The feeling of low temperature gives the solution a predetermined solution density relationship".

Hereinafter, the temperature-sensitive article of the present invention (Invention A) will be described in detail. Figs. 1 to 4 are diagrams for explaining one sanitary napkin 1 (hereinafter referred to as "first embodiment") according to an embodiment of the present invention (invention A) as a temperature-sensitive article. In addition, in the following, only "the sanitary napkin according to the first embodiment as a temperature-sensitive article" is simply referred to as "the sanitary napkin according to the first embodiment". Specifically, FIG. 1 is a plan view of the sanitary napkin 1 according to the first embodiment. Fig. 2 is an exploded perspective view of the sanitary napkin 1 according to the first embodiment. Fig. 3 is a cross-sectional view of the sanitary napkin 1 in the section III-III of Fig. 1. FIG. 4 shows the state of the sanitary napkin 1 in its installed state.

The sanitary napkin 1 according to the first embodiment has a longitudinal direction L, a width direction W, and a thickness direction T orthogonal to each other, and includes an absorbent body 3, which is arranged in front of the longitudinal direction L than the absorbent body 3 The warm body The sanitary napkin 1 is provided with the absorbent body 3: a liquid-permeable sheet 7 made of non-woven fabric that abuts on the wearer's skin during installation, and a liquid-impermeable sheet that abuts on the clothing 19 during installation 9. And the absorbent body 11 arranged between the liquid-permeable sheet 7 and the liquid-impermeable sheet 9.

The sanitary napkin 1 is equipped with a temperature-sensitive body 5: a liquid-permeable sheet 7 made of non-woven fabric that abuts on the wearer’s skin during installation, and a liquid-permeable sheet 7 that abuts on the clothing 19 during installation. Permeable sheet 9. In addition, the sanitary napkin 1 includes a temperature-sensitive main body 5 with a second sheet 13 made of a non-woven fabric arranged between the liquid-permeable sheet 7 and the liquid-impermeable sheet 9 and a shape retaining member 15. The liquid-permeable sheet 7 is provided with a skin contact surface 8a that abuts on the skin of the wearer during installation, and a non-skin contact surface 8b on the opposite side of the skin contact surface 8a. The second sheet 13 is adjacent to the non-skin contact surface 8 b of the liquid-permeable sheet 7. The shape retaining member 15 is arranged on the liquid-impermeable sheet 9 side more than the second sheet 13.

In addition, the sanitary napkin 1 includes a high-temperature sensation imparting region 31 in a range of the temperature-sensitive main body 5 that overlaps with the second sheet 13 in the thickness direction T. In the high temperature sensation imparting area 31, a high temperature sensation imparting solution 33 containing a high temperature sensation imparting agent for activating TRP ion channels and a lipophilic solvent is arranged on the liquid permeable sheet 7 and the second sheet 13, and in the high temperature feeling imparting area 31 The solution density of the high temperature sensation imparting solution 33 in the presence of the liquid permeable sheet 7 is higher than the solution density of the high temperature sensation imparting solution 33 in the presence of the second sheet 13. The high-temperature sensation imparting region 31 is formed by applying the high-temperature sensation imparting solution 33 to each of the liquid-permeable sheet 7 and the second sheet 13. In addition, on the drawing, the relationship between the height of the solution density of the high temperature sensation imparting solution 33 is expressed by the height of the density of the dots.

In addition, the liquid-permeable sheet 7 in the absorbent body 3 and the liquid-permeable sheet 7 in the temperature-sensitive body 5 are treated with a first lipophilic agent capable of imparting a predetermined degree of lipophilicity. The non-woven fabric is formed into a single piece. In addition, the liquid-impermeable sheet 9 in the absorbing body 3 and the liquid-impermeable sheet 9 in the temperature-sensitive body 5 are also composed of an integrated sheet. In addition, the absorbent body 11 in the absorbent body 3 and the shape retaining member 15 in the temperature-sensitive body 5 partially overlap in the thickness direction T at the repeating portion 17. In the repeating portion 17, the absorbent body 11 is arranged relatively The shape maintaining member 15 is closer to the position of the liquid permeable sheet 7.

The sanitary napkin 1 is provided with an adhesive part 21 for fixing the sanitary napkin 1 to the wearer's clothing 19 on both the absorption main body 3 and the temperature-sensitive main body 5. One surface of the adhesive portion 21 is fixed to the liquid-impermeable sheet 9 and the other surface is temporarily fixed to the inner surface of the packaging sheet 29 that provides releasability.

The sanitary napkin 1 is in the unused state together with the packaging sheet 29 with the first folding axis F ₁ in the longitudinal direction extending in the longitudinal direction L and the second folding axis F ₂ in the longitudinal direction extending in the width direction W. The first fold axis F ₃ in the width direction, the second fold axis F _{4 in the} width direction and the third fold axis F _{5 in the} width direction are the base axes and are folded to form a package of the sanitary napkin 1 (not shown) . In addition, the first folding axis F ₃ in the width direction, the second folding axis F ₄ in the width direction, and the third folding axis F _{5 in the} width direction are arranged in the front, center, and rear of the sanitary napkin 1, respectively.

In addition, the first folding axis F ₃ in the widthwise direction is arranged to overlap the second sheet 13 in the thickness direction T in the expanded state of the sanitary napkin 1 and the packaging sheet 29. The first fold axis F _{1 in the} longitudinal direction and the second fold axis F ₂ in the longitudinal direction in the unfolded state of the sanitary napkin 1 and the packaging sheet 29 do not overlap with the absorbent body 11 in the thickness direction T, but are arranged with the The two sheets 13 are repeated in the thickness direction T.

The individual package of the sanitary napkin 1 has the first folding axis F _{1 in the} longitudinal direction and the second folding axis F _{2 in the} longitudinal direction as the base axis, and the sanitary napkin 1 is folded inwardly toward the width direction W. The sanitary napkin 1 and the packaging sheet 29 are then folded with the first folding axis F _{3 in the} width direction and the third folding axis F _{5 in the} width direction as the base axis, and the sanitary napkin 1 is folded inward toward the longitudinal direction L, and then, It is formed by folding the sanitary napkin 1 inwardly in the longitudinal direction L with the second folding axis F _{4 in the} widthwise direction as the base axis.

In addition, although the sanitary napkin 1 is provided with a pair of wings 23, a sealing part 25, an embossing part 27, etc. for fixing the sanitary napkin 1 to clothing 19, it is a well-known person in this technical field. The description is omitted.

In the sanitary napkin 1, the absorbent body 3 and the temperature-sensitive body 5 are arranged in such a manner that the excretion port contact area (not shown) of the absorber 11 of the absorbent body 3 abuts against the wearer's excretion port contact area When the clothing 19 is worn, the temperature-sensitive main body 5, especially the second sheet 13 is arranged at a position corresponding to the lower abdomen of the wearer. In other words, it is the distance between the excretion opening contact area (not shown) of the absorbent body 11 constituting the absorbent body 3 and the second sheet 13 of the temperature-sensitive body 5, and the distance from the excretion opening of the wearer and the lower abdomen (The distance on the skin surface) is approximately equal. The absorbent body 3 has the same shape as a normal sanitary napkin.

In the temperature-sensitive main body 5, the second sheet 13 is processed by a second lipophilic agent that can impart a lower lipophilicity than the first lipophilic agent used in the liquid-permeable sheet 7 Made of lipophilic non-woven fabric. That is, in the temperature-sensitive main body 5, the non-woven fabric constituting the liquid-permeable sheet 7 has a higher lipophilicity than the non-woven fabric constituting the second sheet 13. Furthermore, as shown in FIG. 3, the fiber density of the nonwoven fabric constituting the liquid-permeable sheet 7 is higher than the fiber density of the nonwoven fabric constituting the second sheet 13.

Furthermore, the length of the widthwise direction W of the second sheet 13 is longer than the length of the widthwise direction W of the absorbent body 11, and the high-temperature feeling imparting solution 33 is arranged in a wider area in the widthwise direction W than the absorbent body 11 .

The user fixes the sanitary napkin 1 to the wearer's clothing 19. If the sanitary napkin 1 is installed, the high-temperature sensation imparting solution 33 contained in the high-temperature sensation imparting area 31 (second sheet 13) contacts the wearer's skin, and The TRP ion channel at the contact site of the wearer's skin contacted by the high-temperature sensation imparting agent is efficiently activated, and can efficiently impart a high-temperature sensation higher than body temperature (36°C) to the lower abdomen of the wearer.

By imparting a high temperature feeling to the wearer’s lower abdomen, the TRP ion channel at the skin contact area of the lower abdomen of the wearer who is in contact with the high temperature feeling imparting agent is activated. The contact area is generated, and the temperature of the contact area of the wearer's skin rises, thereby warming the area close to the wearer's uterus and alleviating the wearer's physical pain. In addition, by warming the vicinity of the wearer's uterus, it can be expected to reduce the wearer's premenstrual syndrome (premenstrual syndrome), cold resistance, menopausal disorders, etc.

The inventors of the present application found that a temperature-sensitive article containing a high-temperature sensation imparting agent has a tendency to have a longer sensation time than a thermal article containing a heat-generating agent (for example, iron powder), and that during the period of the sensation time People tend to feel itching. In addition, the inventors of the present invention found that the temperature-sensitive article containing a high-temperature sensation imparting agent was compared with a heat-generating article containing a heat-generating agent (such as iron powder), depending on the condition of the wearer’s skin (such as the dryness of the wearer’s skin, etc.). ), the way to feel the high temperature is poor. For example, when the skin of the wearer is moistened with water, it is easier to maintain the swelling state of the main stratum corneum of the wearer's skin than when the wearer's skin is dry. The high temperature feeling imparting solution 33 is mainly easy to reach the presence of keratinocytes. (Keratinocytes) TRP ion channels, so it is easy to feel high temperature (the sense of high temperature is short).

According to the sanitary napkin 1 of the first embodiment, in the high temperature sensation imparting area 31, the solution density of the high temperature sensation imparting solution 33 in which the liquid-permeable sheet 7 is present is higher than the solution density of the high temperature sensation imparting solution 33 in the presence of the second sheet 13 high.

Therefore, if the wearer wears the sanitary napkin 1, at the initial stage of use, the relatively high-density high-temperature sensation imparting solution 33 of the liquid-permeable sheet 7 moves to the wearer’s skin and can provide the wearer with The skin has a strong high temperature sensation effect, thus shortening the high temperature sensation time. In addition, as a result of shortening the high temperature sensation time, the wearer is less likely to feel itching during the high temperature sensation time.

In addition, if the relatively high-density high-temperature sensation imparting solution 33 of the liquid-permeable sheet 7 moves to the wearer’s skin and is consumed in the sanitary napkin 1, there is the relatively low-density high-temperature sensation imparting of the second sheet 13 The solution 33 moves to the liquid-permeable sheet 7, and in the middle and late stages of the application, the relatively low-density high-temperature sensation imparting solution 33 from the liquid-permeable sheet 7 moves to the skin of the user, and can be applied to the skin of the user Weak high temperature sensation, but if the wearer's skin feels high temperature once, even if the weak high temperature sensation is given, the wearer can continue to feel a moderate high temperature sensation.

Next, when the wearer finishes the installation of the sanitary napkin 1 and enters the bath, it is not easy for the user to install it due to the relatively low-density high-temperature sensation imparting solution 33 at the end of the installation period. I feel irritation at the contact part of the skin that touches the high-temperature sensation imparting agent due to hot water.

In addition, the sanitary napkin 1 has (i) the fiber density of the non-woven fabric constituting the liquid-permeable sheet 7 is higher than the fiber density of the non-woven fabric constituting the second sheet 13, and (ii) the solvent constituting the high-temperature feeling imparting solution 33 is As the lipophilic solvent, the non-woven fabric constituting the liquid-permeable sheet 7 has a higher lipophilicity than the non-woven fabric constituting the second sheet 13.

Therefore, due to the difference in fiber density and lipophilicity of the liquid-permeable sheet 7 and the second sheet 13, in the high-temperature sensation imparting area 31, for example, the high-temperature sensation imparting solution 33 is applied to the liquid-permeable sheet 7 and the second sheet 13 In either case, or when a uniform amount is applied to both the liquid-permeable sheet 7 and the second sheet 13, the predetermined solution density relationship of the high-temperature sensation imparting solution 33 is easily formed. In addition, the sanitary napkin 1 is high temperature when the high-temperature sensation imparting solution 33 is temporarily moved even when subjected to vibration, pressure, etc. during transportation, and when the high-temperature sensation imparting solution 33 is temporarily moved due to body pressure during installation. The sensation imparting solution 33 is also easy to return to its original position, and a predetermined solution density relationship of the high temperature sensation imparting solution 33 is easily formed.

Fig. 5 is a diagram illustrating another embodiment of the present invention (invention A) (hereinafter referred to as "the second embodiment") for explaining a panty-type sanitary napkin 101 as a temperature-sensitive article, and showing the state of being worn Figure. In addition, the "underpants-type sanitary napkin according to the second embodiment as a temperature-sensitive article" may be simply referred to as the "underpants-type sanitary napkin according to the second embodiment" below.

The underpants type sanitary napkin 101 according to the second embodiment is composed of an underpants part 103 and an absorbent article part 105 arranged on the inner surface of the underpants part 103. The absorbent article part 105 includes an absorption main body 107 and a temperature-sensitive main body 109. The absorbent main body 107 is provided with: a liquid-permeable sheet (not shown) made of a non-woven fabric that abuts on the wearer's skin during installation, and a liquid-impermeable sheet (not shown) that abuts on the underwear 103 , And the absorber 111 arranged between them. The temperature-sensitive main body 109 is provided with a liquid-permeable sheet (not shown) that abuts on the wearer's skin during installation, and a liquid-impermeable sheet (not shown) that abuts on the underwear 103. In addition, the temperature-sensitive main body 109 is provided with a second sheet 113 composed of a non-woven fabric and a shape retaining member 115 arranged between a liquid-permeable sheet (not shown) and a liquid-impermeable sheet (not shown). . The liquid-permeable sheet (not shown) includes a skin contact surface (not shown) that abuts on the wearer’s skin during installation, and a non-skin contact surface (not shown) on the opposite side of the skin contact surface. (Shown), the second sheet 113 is adjacent to the non-skin contact surface (not shown) of the liquid-permeable sheet.

In addition, the liquid-permeable sheet (not shown) in the absorbing body 107 and the liquid-permeable sheet (not shown) in the temperature-sensitive body 109 are made by using the first lipophilicity that can impart a predetermined lipophilicity. The agent treated by the agent is composed of a sheet of non-woven fabric with lipophilicity. In addition, the liquid-impermeable sheet (not shown) in the absorbent body 107 and the liquid-impermeable sheet (not shown) in the temperature-sensitive body 109 are also composed of an integrated sheet. In addition, the second sheet 113 of the temperature-sensitive main body 109 is composed of a lipophilic non-woven fabric treated with the same first lipophilic agent as the liquid-permeable sheet (not shown).

The fiber density of the nonwoven fabric constituting the liquid-permeable sheet (not shown) is higher than the fiber density of the nonwoven fabric constituting the second sheet 113. Also, as described above, the liquid-permeable sheet (not shown) and the second sheet 113 are made lipophilic by the same first lipophilic agent, and the liquid-permeable sheet (not shown) and the second sheet 113 The flakes 113 have the same lipophilicity.

In addition, the panty-type sanitary napkin 101 includes a high-temperature sensation imparting region 117 in a range of the temperature-sensitive main body 109 that overlaps the second sheet 113 in the thickness direction T. In the high temperature sensation imparting area 117, a high temperature sensation imparting agent for activating TRP ion channels, and a high temperature sensation imparting solution with a lipophilic solvent are arranged on the liquid permeable sheet (not shown) and the second sheet 113. In the imparting area 117, the solution density of the high temperature sensation imparting solution (not shown) in which the liquid-permeable sheet (not shown) is present is higher than the solution density of the high temperature sensation imparting solution (not shown) in the second sheet 113. In addition, the high temperature sensation imparting area 117 is formed by applying a high temperature sensation imparting solution to each of the liquid permeable sheet (not shown) and the second sheet 113.

If the wearer wears underwear-type sanitary napkin 101, in the early stage of wear, the relatively high-density high-temperature feeling imparting solution of the liquid-permeable sheet (not shown) can give the wearer's skin a strong high-temperature feeling. So it can shorten the high temperature feeling time. In addition, as a result of shortening the high temperature sensation time, the wearer is less likely to feel itching during the high temperature sensation time.

In addition, in the underpants type sanitary napkin 101, if there is a relatively high density of the liquid-permeable sheet (not shown), the high-temperature sensation imparting solution migrates to the wearer’s skin and is consumed, and the second sheet 113 is relatively low. The high-temperature sensation of density imparts the solution to the liquid-permeable sheet (not shown). In the middle and late stages of the application, the liquid-permeable sheet (not shown) can provide relatively low density to the skin of the user. The high temperature sensation imparting solution, however, once the wearer's skin feels a high temperature sensation, even if a relatively low density high temperature sensation imparting solution is provided, the wearer can continue to feel a moderate high temperature sensation.

Next, when the wearer finishes the use of the underwear-type sanitary napkin 101 and enters the bath, the wearer receives a relatively low-density high-temperature sensation imparting solution at the end of the period of use. Therefore, the wearer It is not easy to feel irritation at the contact part of the skin contacting the high-temperature sensation imparting agent due to hot water or the like.

In addition, in the underpants type sanitary napkin 101, the fiber density of the non-woven fabric constituting the liquid-permeable sheet (not shown) is higher than the fiber density of the non-woven fabric constituting the second sheet 113. Therefore, due to the difference in fiber density between the liquid-permeable sheet (not shown) and the second sheet 113, in the high-temperature sensation imparting area 117, for example, even if a high-temperature sensation imparting solution is applied to the liquid-permeable sheet (not shown) and the second sheet 113 When either one of the sheets 113 or a uniform amount is applied to both of the liquid-permeable sheet (not shown) and the second sheet 113, a predetermined solution density relationship of the high-temperature sensation imparting solution is easily formed. In addition, the underpants type sanitary napkin 101 temporarily moves the high-temperature sensation-imparting solution even when subjected to vibration, pressure, etc. during transportation, or temporarily moves the high-temperature sensation-imparting solution when receiving body pressure during installation, etc. The high temperature sensation imparting solution is also easy to return to its original position, and a predetermined solution density relationship of the high temperature sensation imparting solution is easily formed.

In addition, by imparting a high temperature sensation to the wearer's lower abdomen, the TRP ion channel at the skin contact area of the lower abdomen of the wearer who is in contact with the high temperature sensation imparting agent is activated. It is generated from the above-mentioned contact part, and the temperature of the contact part of the wearer's skin is increased, thereby warming the part close to the wearer's uterus, and alleviating the wearer's physical pain. In addition, it can be expected to reduce premenstrual syndrome, cold resistance, menopausal disorders, etc. of the wearer.

FIG. 6 is a diagram illustrating yet another embodiment (hereinafter referred to as "the third embodiment") according to the present invention (invention A) as a disposable disposable diaper 201 for adults as a temperature-sensitive article, and shows Diagram of the installed state. In addition, the "disposable diapers according to the third embodiment as a temperature-sensitive article" may be simply referred to as "disposable diapers according to the third embodiment" below.

The disposable diaper 201 according to the third embodiment is provided with: a liquid-permeable sheet 203 made of a non-woven fabric in contact with the wearer's skin, a liquid-impermeable sheet 205, and a liquid-permeable sheet arranged on The absorbent body 207 between the 203 and the liquid impermeable sheet 205, and the second sheet 209 made of non-woven fabric. The second sheet 209 is more forward than the absorber 207 and is arranged between the liquid-permeable sheet 203 and the liquid-impermeable sheet 205. The liquid-permeable sheet 203 includes a skin contact surface (not shown) that abuts on the wearer's skin during wearing, and a non-skin contact surface (not shown) on the opposite side of the skin contact surface. The second sheet 209 is adjacent to the non-skin contact surface (not shown) of the liquid-permeable sheet 203. The second sheet 209 is arranged to correspond to the lower abdomen of the wearer when the disposable diaper 201 is worn.

The liquid-permeable sheet 203 is composed of a lipophilic non-woven fabric treated with a first lipophilic agent capable of imparting a predetermined degree of lipophilicity. In addition, the second sheet 209 is made of a non-woven fabric having lipophilicity treated with a second lipophilic agent that can impart a degree of lipophilicity lower than that of the first lipophilic agent used in the liquid-permeable sheet 203. constitute. In addition, the liquid-permeable sheet 203 and the second sheet 209 are made of the same non-woven fabric, and they have the same fiber density.

In addition, the disposable diaper 201 includes a high-temperature feeling imparting region 211 in a range overlapping with the second sheet 209 in the thickness direction T. In the high temperature sensation imparting area 211, a high temperature sensation imparting solution containing a high temperature sensation imparting agent for activating TRP ion channels and a lipophilic solvent is arranged on the liquid permeable sheet 203 and the second sheet 209. In the high temperature feeling imparting region 211, The high temperature sensation imparting solution (not shown) in the presence of the liquid-permeable sheet 203 has a higher solution density than the high temperature sensation imparting solution (not shown) in the second sheet 209. In addition, the high temperature sensation imparting area 211 is formed by applying a high temperature sensation imparting solution to each of the liquid permeable sheet 203 and the second sheet 209.

Therefore, if the wearer wears disposable diapers 201, the relatively high-density high-temperature sensation imparting solution due to the presence of the liquid-permeable sheet 203 in the initial stage of wearing can give the wearer's skin a strong high-temperature sensation. , Thus shortening the high temperature feeling time. In addition, as a result of shortening the high temperature sensation time, the wearer is less likely to feel itching during the high temperature sensation time.

In addition, the disposable diaper 201 has a liquid-permeable sheet 203, and the relatively high-density high-temperature sensation imparting solution migrates to the wearer’s skin. If it is consumed, the second sheet 209 has a relatively low-density high-temperature sensation imparting The solution migrates to the liquid-permeable sheet 203. In the middle and late stages of wearing, although the liquid-permeable sheet 203 can provide the wearer’s skin with a relatively low-density high-temperature sensation imparting solution, the wearer’s skin If a high temperature feeling is felt, even when a relatively low-density high temperature feeling imparting solution is provided, the wearer can continue to feel a moderate high temperature feeling.

Next, when the wearer finishes wearing the disposable diaper 201 for bathing, etc., in the later stage of wearing, because the wearer receives a relatively low-density high-temperature sensation imparting solution due to the warming effect, the wearer It is not easy to feel irritation at the contact part of the skin contacting the high-temperature sensation imparting agent due to hot water or the like.

In addition, the disposable diaper 201 uses a lipophilic solvent as the solvent constituting the high-temperature feeling imparting solution, and the non-woven fabric constituting the liquid-permeable sheet 203 has a higher lipophilicity than the non-woven fabric constituting the second sheet 209.

Therefore, due to the difference in lipophilicity between the liquid-permeable sheet 203 and the second sheet 209, in the high-temperature sensation imparting area 211, for example, even when a high-temperature sensation imparting solution is applied to any one of the liquid-permeable sheet 203 and the second sheet 209, Or when a uniform amount is applied to both the liquid-permeable sheet 203 and the second sheet 209, it is easy to form a predetermined solution density relationship for imparting a high-temperature feeling to the solution. In addition, the disposable diaper 201 is used when the high-temperature sensation imparting solution is temporarily moved even when subjected to vibration, pressure, etc. during transportation, or when the high-temperature sensation imparting solution is temporarily moved due to body pressure during wearing, etc. The high temperature sensation imparting solution is also easy to return to its original position, and a predetermined solution density relationship of the high temperature sensation imparting solution is easily formed.

In addition, by imparting a high temperature sensation to the lower abdomen of the wearer, the TRP ion channel in the contact part of the skin of the lower abdomen of the wearer who is in contact with the high temperature sensation imparting agent is activated, which can be expected to pass through the sympathetic nervous system. Heat is generated from the contact portion of the high-temperature sensation imparting agent, and the temperature of the contact portion of the wearer's skin is increased.

As a result, when the wearer of the disposable diaper 201 is a female, it can be expected that (i) the prostaglandin that is a factor of physiological pain will be discharged, the muscles such as uterine tendons will relax, and the physiological pain will be relieved, (ii) Promote blood circulation, promote the flow of lymph, discharge old waste, improve cold resistance, burn fat, (iii) improve immunity, etc. When the wearer of disposable diapers 201 is male, he can expect to (i) excrete prostaglandins, relax muscles and relieve pain, (ii) promote blood circulation, promote lymphatic fluid flow, and discharge old waste products. Improve cold resistance, burn fat, (iii) improve immunity, etc.

FIGS. 7 to 11 are diagrams for explaining a temperature-sensitive sheet 301 as a temperature-sensitive article according to still another embodiment (hereinafter referred to as "the fourth embodiment") of the present invention (invention A). In addition, in the following, "the temperature-sensitive sheet as a temperature-sensitive article according to the fourth embodiment" may be simply referred to as the "temperature-sensitive sheet according to the fourth embodiment". Specifically, FIG. 7 is a perspective view of an individual package body 303 in which the temperature sensitive sheet 301 is individually packaged according to the fourth embodiment. Fig. 8 is a perspective view of a temperature-sensitive sheet 301 according to the fourth embodiment. Fig. 9 is an exploded perspective view of the temperature sensitive sheet 301 according to the fourth embodiment. Fig. 10 is a cross-sectional view of the temperature-sensitive sheet 301 in the X-X cross section of Fig. 8. FIG. 11 is a diagram showing the state of installation of the temperature-sensitive sheet 301 according to the fourth embodiment. In addition, in the following, the "individual packaging body of the temperature sensitive sheet" may only be referred to as the "individual packaging body".

The temperature-sensitive sheet 301 according to the fourth embodiment has a skin contact surface 331 and a non-skin contact surface 333, and a liquid-permeable sheet 307 composed of a non-woven fabric, composed of a non-woven fabric, and adjacent to the liquid The second sheet 309 of the non-skin abutting surface 333 of the permeable sheet 307, the third sheet 311 made of non-woven fabric adjacent to the surface of the second sheet 309 on the opposite side of the liquid permeable sheet 307, abuts against the clothing The liquid-impermeable sheet 313, the liquid-impermeable sheet 313 is fixed to the liquid-impermeable sheet 313, and the liquid-impermeable sheet 313 is adhered to the adhesive part 315 for the clothes 321, and the release sheet 317 for temporarily fixing the adhesive part 315 in this order It is provided and has: the longitudinal direction L, the width direction W, and the thickness direction T orthogonal to each other.

The liquid-permeable sheet 307 is composed of a hydrophilic non-woven fabric treated with a first hydrophilizing agent that can impart a predetermined degree of hydrophilicity, and the second sheet 309 is composed of a sheet that can impart a more liquid-permeable The first hydrophilizing agent used in 307 is composed of a hydrophilic non-woven fabric treated with a second hydrophilizing agent with a lower degree of hydrophilicity, while the third sheet 311 is made of more utilizable energy imparted to the second sheet 309. The second hydrophilizing agent used is composed of a hydrophilic non-woven fabric treated with a third hydrophilizing agent with a lower degree of hydrophilicity.

In addition, the fiber density of the non-woven fabric constituting the liquid-permeable sheet 307 is higher than that of the non-woven fabric constituting the second sheet 309, and the fiber density of the non-woven fabric constituting the third sheet 311 is higher than the fiber density of the non-woven fabric constituting the second sheet 309 Lower.

The temperature-sensitive sheet 301 constitutes the low-temperature sensitivity imparting area 341 as a whole, and the entire liquid-permeable sheet 307, the entire second sheet 309, and the entire third sheet 311 are provided with a low-temperature sensitivity imparting agent that activates TRP ion channels , And the low temperature feeling of water as a hydrophilic solvent imparting solution 343.

In the low-temperature feeling imparting area 341, the low-temperature feeling imparting solution 343 where the liquid-permeable sheet 307 is present has the highest solution density, the low-temperature feeling imparting solution 343 where the second sheet 113 is present has the second highest solution density, and the third sheet 311 has the low temperature feeling. The solution density imparted to solution 343 is the lowest. In addition, on the drawing, the relationship between the height of the solution density of the low-temperature sensation imparting solution 343 is expressed by the height of the density of the dots.

The temperature-sensitive sheet 301 includes a folding axis F ₆ extending in parallel to the width direction W at the center in the longitudinal direction L. In addition, in the individual packaging body 303, the temperature-sensitive sheet 301 uses the folding axis F ₆ as a base axis, and the skin contact surface 331 of the liquid-permeable sheet 307 is folded inward, and the packaging sheet 305 is packaged.

The adhesive part 315 is composed of a plurality of adhesive parts 316. Each of the plurality of adhesive portions 316 extends in the widthwise direction W, and reaches the two ends of the temperature-sensitive sheet 301 in the widthwise direction W. The plurality of adhesive portions 316 are arranged at predetermined intervals in the longitudinal direction L. The peeling sheet 317 has the same shape as the outer edge of the liquid impermeable sheet 313, and is arranged to cover the entire adhesive portion 315 (a plurality of adhesive portion portions 316).

As shown in FIG. 7, in a state where the temperature sensitive sheet 301 is folded in half, it is wrapped by the packaging sheet 305 to form a package body 303. Specifically, the individual packaging body 303 is a temperature-sensitive sheet 301 in which the skin contact surface 331 of the liquid-permeable sheet 307 is folded inwardly by sandwiching two packaging sheets 305 with the folding axis F ₆ as the base axis. It is formed by providing a sealing portion 335 on the periphery of the two packaging sheets 305.

When the user uses the temperature-sensitive sheet 301, the individual package body 303 is opened from the notch 337 of the individual package body 303, the temperature-sensitive sheet 301 is taken out from the individual package body 303, and the peeling sheet 317 is peeled from the temperature-sensitive sheet 301. Next, the wearer fixes the adhesive portion 315 of the temperature sensitive sheet 301 to the clothing 321, specifically the inner surface of the underwear, with the skin contact surface 331 of the temperature sensitive sheet 301 in contact with the wearer's skin Use a temperature-sensitive sheet 301.

If the wearer uses the temperature-sensitive sheet 301, at the initial stage of use, the relatively high-density low-temperature feeling imparting solution 343 of the liquid-permeable sheet 307 in the low-temperature feeling imparting region 341 moves to the wearer’s skin and can be imparted to the wearer. The skin has a strong low temperature sensation effect, thus shortening the sensation time of low temperature.

Next, if the relatively high-density low-temperature feeling imparting solution 343 with the liquid-permeable sheet 307 moves to the wearer’s skin and is consumed, the relatively medium-density low-temperature feeling imparting solution 343 with the second sheet 309 moves to liquid permeability. In the sheet 307, in the middle of the application, the relatively medium-density low-temperature feeling imparting solution 343 moves from the liquid-permeable sheet 307 to the skin of the wearer, and can impart a moderate warming effect to the skin of the wearer.

Next, if the relatively medium-density low-temperature feeling imparting solution 343 with the liquid-permeable sheet 307 moves to the wearer’s skin and is consumed, the relatively low-density low-temperature feeling imparting solution 343 with the third sheet 311 passes through the second sheet 309. Moving to the liquid-permeable sheet 307, the relatively low-density low-temperature feeling imparting solution 343 moves from the liquid-permeable sheet 307 to the skin of the wearer in the later stage of the application, and can impart a weak warming effect to the skin of the wearer. In addition, once the wearer's skin feels warm, even if a weak warming effect is imparted to the wearer's skin, the wearer can continue to feel a moderate low temperature.

Next, when the user finishes the use of the temperature-sensitive sheet 301 and takes off the temperature-sensitive sheet 301 for bathing, etc., in the later stage of the installation, the relatively low-density low-temperature feeling imparting solution 343 receives the temperature-sensitive effect, so, The wearer is less likely to feel irritation at the contact part of the skin contacting the low-temperature sensation imparting agent due to hot water or the like.

In the temperature-sensitive article of the present invention (Invention A), the temperature-sensitive imparting solution includes a temperature-sensitive imparting agent that activates TRP ion channels, and a solvent. There are no particular limitations on the above-mentioned temperature sensation imparting agent as long as it activates TRP ion channels, and examples thereof include high temperature sensation imparting agents and low temperature sensation imparting agents.

The above-mentioned high temperature sensation imparting agent includes an agent acting on the TRPV1 receptor, an agent acting on the TRPV3 receptor, etc., and an agent acting on the TRPV1 is ideal. The TRPV1 receptor has a critical activation temperature exceeding 43°C, which can give the wearer a strong sense of high temperature.

The above-mentioned high-temperature feeling imparting agent is preferably a plant-derived compound from the viewpoint of the wearer's sense of security. The above-mentioned high-temperature sensation imparting agent includes, for example, capsaicin, capsaicin, and capsaicins (dihydrocapsaicin, protodihydrocapsaicin, homodihydrocapsaicin, homocapsaicin, nonivaramide, etc.) , Capsanthin, nicotinic acid benzyl ester, nicotinic acid-β-butoxy ethyl ester, glycerophosphate-N-acetyl ester, nonanoic acid vanillyl amide, polyol, chili powder, chili tincture, chili Extracts, vanillyl nonanoate, vanillyl alcohol alkyl ether derivatives (e.g., vanillyl ethyl ether, vanillyl butyl ether, vanillyl amyl ether, vanillyl hexyl ether), isovanillyl alcohol alkyl ether, Ethyl vanillyl alcohol alkyl ether, veratryl alcohol derivatives, substituted benzyl alcohol derivatives, substituted benzyl alcohol alkyl ethers, vanillin propylene glycol acetaldehyde, ethyl vanillin propylene glycol acetaldehyde, ginger extract And ginger oil, gingerol, gingerol, hesperidin, and pyrrolidone carboxylic acid, and any combination of these.

The above-mentioned high-temperature sensation imparting agent is not ideal for capsaicin from the viewpoint that the wearer does not easily feel pain, itching, etc., and vanillyl alcohol alkyl ether derivatives are most desirable, such as vanillyl ethyl ether, vanillyl butyl ether, vanilla Alkyl amyl ether, vanillyl hexyl ether ginger extract, ginger oil, gingerol, and gingerol, and any combination of these are most desirable.

Examples of the above-mentioned low-temperature sensation imparting agents include those that activate TRP ion channels, and examples of the above-mentioned low-temperature sensation imparting agents include agents that act on TRPM8 receptors, and agents that act on TRPA1 receptors. It is ideal for TRPM8.

The aforementioned low-temperature sensation imparting agent includes, for example, menthol (e.g., l-menthol) and its derivatives (e.g., menthyl lactate, menthyl glyceryl ether, such as l-menthyl glyceryl ether) ; Methyl salicylate; camphor; essential oils derived from plants (for example: peppermint, eucalyptus).

The solvent is not particularly limited as long as it can contain the temperature-imparting agent, and examples thereof include lipophilic solvents and hydrophilic solvents. The above-mentioned solvent is, for example, capable of dissolving and dispersing the above-mentioned temperature-sensitive imparting agent. As for the above lipophilic solvents, fats and oils can be mentioned, for example, natural oils (for example, fatty acid esters such as triglycerides, coconut oil, linseed oil, etc.); hydrocarbons (for example, paraffin, such as liquid paraffin) Wait.

Examples of the above-mentioned hydrophilic solvent include water and alcohols. Examples of the above-mentioned alcohols include lower alcohols such as methanol, ethanol, ethylene glycol, and glycerol, and higher alcohols such as octanol, lauryl alcohol, and myristyl alcohol.

The above-mentioned solvents are preferably oils (lipophilic solvents) or alcohols (hydrophilic solvents) from the viewpoint of easy control of volatility, especially easy avoidance of volatility. In addition, when the temperature-sensitive article is an absorbent article, it is preferable that the solvent is a lipophilic solvent from the viewpoint of hindering absorbability.

Although the amount of the temperature-imparting agent contained in the temperature-imparting solution varies depending on the type of the temperature-imparting agent, it is generally desirable that the temperature-imparting solution contains 0.0001 to 5.0% by mass of the temperature The imparting agent more preferably contains 0.0005 to 3.0% by mass of the temperature imparting agent, more preferably contains 0.1 to 1.0% by mass of the temperature imparting agent, and most preferably contains 0.3 to 0.7% by mass of the temperature imparting agent. Imparting agent. From the point of view of the effect of temperature.

When the temperature-sensitive article of the present invention (Invention A) is a temperature-sensitive article that imparts a high-temperature sensation, the temperature-sensitive article contains the aforementioned low-temperature sensation agent in addition to the above-mentioned high-temperature sensation agent. The inventors of the present invention found that when the temperature sensation is imparted to the wearer, in addition to the above-mentioned high temperature sensation imparting agent, when the temperature sensation imparting solution contains the above-mentioned low temperature sensation imparting agent, the wearer will have the same temperature sensation time as described above. The temperature sensation imparts the solution to the contact part and its peripheral part that are not easy to feel itching.

In the above case, the temperature sensitivity imparting solution preferably contains 0.0001 to 5.0% by mass of the low temperature sensitivity imparting agent, more preferably contains 0.0005 to 3.0% by mass of the low temperature sensitivity imparting agent, and more preferably contains 0.1 to 1.0% by mass of the low temperature sensitivity imparting agent. The imparting agent preferably contains 0.3 to 0.7% by mass of the low-temperature feeling imparting agent. It comes from the viewpoint that the wearer is not easy to feel itching during the high temperature feeling time, and it is not easy to feel the excessive low temperature feeling.

In the above case, it is desirable that the temperature sensitivity imparting solution contains the high temperature sensitivity imparting agent and the low temperature sensitivity imparting agent in a mass ratio of 20:1 to 1:10, and more preferably 10:1 to 1:5. In addition, it is more desirable that the above-mentioned high-temperature feeling-imparting agent and low-temperature feeling-imparting agent have a mass ratio of 2:1 to 1:1. It comes from the viewpoint that the wearer is not easy to feel itching during the high temperature sensation time, and it is not easy to feel the low temperature sensation, and it is easy to feel the high temperature sensation.

In the temperature-sensitive article of the present invention (Invention A), in addition to the above-mentioned temperature-imparting agent and solvent, the temperature-sensitive article may include at least one of the following types within a range that does not hinder the temperature-sensitive effect on the wearer Other ingredients.

With respect to at least one of the above-mentioned other components, the coolant can be, for example, a coolant whose surrounding temperature is lowered by the heat of vaporization. The coolant can be, for example, alcohols, for example, methanol, ethanol, etc. .

As for the above-mentioned at least one other component, for example, silicone oil, silicon dioxide, silicone-based resin, etc. can be mentioned. With regard to at least one of the above-mentioned other components, for example, antioxidants, for example, BHT (2,6-di-butanetriyl-p-cresol), BHA (butylated hydroxyanisole), and Propyl carboxylate and so on.

The at least one other component mentioned above includes, for example, vitamins, for example, natural vitamins or synthetic vitamins. The above-mentioned vitamins include, for example, water-soluble vitamins, for example, vitamin B group, for example: vitamin B ₁ , vitamin B ₂ , vitamin B ₃ , vitamin B ₅ , vitamin B ₆ , vitamin B ₇ , vitamin B _9. Vitamin B _12, etc., Vitamin C. The above-mentioned vitamins include, for example, fat-soluble vitamins, such as vitamin A group, vitamin D group, vitamin E group, and vitamin K group. The above-mentioned vitamins also include these derivatives.

As for the above-mentioned at least one other component, for example, amino acids can be cited; for example, alanine, arginine, lysine, histidine, proline, hydroxyproline, etc., and Peptide.

The at least one other component mentioned above includes, for example, zeolite; for example, natural zeolite; for example, analcime, chabazite, heulandite, sodium zeolite, stilbene, and rod zeolite, and synthetic zeolite. Examples of at least one of the above-mentioned other components include cholesterol, hyaluronic acid, palmitate, brain amine, placenta, collagen, elastin, squalane, petrolatum, trehalose, and the like.

In addition, at least one of the above-mentioned other ingredients includes, for example, pharmaceuticals, such as skin astringents, anti-acne agents, anti-wrinkle agents, cellulite reducing agents, whitening agents, antibacterial agents, antifungal agents, etc. . Examples of the aforementioned skin astringent include zinc oxide, aluminum sulfate, and tannic acid, and examples of the oil-soluble skin astringent include oil-soluble polyphenols. As the above-mentioned oil-soluble polyphenols, natural oil-soluble polyphenols include, for example, cork extract, forsythia suspensa extract, wild sesame extract, glycosides extract, burdock extract, salvia ginseng extract, Japanese Tilia extract, Tilia extract, White birch leaf extract, Horsetail leaf extract, Sage extract, Walnut shell extract, Hibiscus flower extract, Loquat leaf extract, White linden flower extract, Hops extract , Horse Chestnut Seed Extract, Coix Seed Extract, etc.

Examples of the aforementioned anti-acne agents include salicylic acid, benzoyl peroxide, resorcinol, sulfur, erythromycin, zinc, and the like. Examples of the above-mentioned anti-wrinkle agents include lactic acid, salicylic acid, salicylic acid derivatives, glycolic acid, phytic acid, lipoic acid, and lysophosphatidic acid.

Examples of the above-mentioned orange peel fat agent include xanthine compounds, and examples thereof include aminophyrin, caffeine, theophylline, and theobromine. The above-mentioned whitening agents include, for example, nicotine amide, kojic acid, arbutin, glucosamine and its derivatives, plant sterol derivatives, ascorbic acid and its derivatives, and mulberry bark extract and placenta extract.

In addition, examples of the above-mentioned at least one other component include anti-inflammatory components, pH adjusters, antibacterial agents, moisturizers, fragrances, pigments, dyes, pigments, plant extracts, and the like. As for the above-mentioned anti-inflammatory ingredients, for example, natural anti-inflammatory agents, and for example, peony, scutellaria, Hypericum perforatum, chamomile, licorice, peach leaves, wormwood, perilla leaf extract, etc., synthetic anti-inflammatory agents can be Examples: allantoin, dipotassium glycyrrhizinate, etc. Examples of the above-mentioned pH adjusters include those for keeping the skin weakly acidic, such as malic acid, succinic acid, citric acid, tartaric acid, and lactic acid. Examples of the above-mentioned pigment include titanium oxide.

In the temperature-sensitive article of the present invention (Invention A), it is particularly desirable that the temperature-sensitive article does not contain a heat-generating agent. Because of this, the user is less likely to suffer low-temperature burns. In addition, since the temperature-sensitive article itself does not generate heat, the adhesive part for fixing the temperature-sensitive article to the clothes and contacting the skin is not easy to soften. After the use of the temperature-sensitive article is finished, take it from the skin of the wearer or wearer. When lowering the temperature-sensitive article, the adhesive part of the warm-sensitive article is not likely to remain on the clothes, skin, etc.

As for the above-mentioned exothermic agent, as long as the exothermic agent itself generates heat, there are no special restrictions. For example, it can be used for example: the oxidation heat of metal powder (such as iron powder), the neutralization heat of acid and alkali, the heat of inorganic salt water, etc. By.

In the temperature-sensitive article of the present invention (Invention A), the liquid-permeable sheet, the second sheet, and the desired third sheet are not particularly limited as long as they are made of a fabric, and for example, they are made of nonwoven fabric, woven fabric, or knitted fabric. The above-mentioned fabric is a non-woven fabric from the viewpoint of the ease of manufacturing a temperature-sensitive article. For the above-mentioned non-woven fabrics, for example, air formed pulp, hot-air non-woven fabrics, spunbonded non-woven fabrics, point-bonded non-woven fabrics, water needle non-woven fabrics, needle-punched non-woven fabrics, melt-blown non-woven fabrics, and combinations thereof (for example, SMS, etc.) Wait.

In addition, the liquid-permeable sheet, the second sheet, and the desired third sheet are fabrics formed integrally, and may be non-woven fabrics, for example. For example, by laminating the fiber web for the liquid-permeable sheet and the fiber web corresponding to the second sheet, a well-known nonwoven fabric forming method, such as a hot air method, can be used to produce an integrally formed nonwoven fabric.

Examples of the fibers constituting the above-mentioned fabric include natural fibers, synthetic fibers, and semi-synthetic fibers. For the above-mentioned natural fibers, pulp fibers and regenerated cellulose fibers can be cited. Regarding the above-mentioned regenerated cellulose fibers, examples of rayon fibers include: mucous rayon obtained from mucilage fibers; cuproammonium rayon fibers obtained from multiple rayon fibers and modal fibers, and cupric ammonium salt solution of cellulose (Also known as "copper ammonia rayon"); and obtained by the organic solvent spinning method using an organic solvent as a mixed solution of organic compounds and water, without cellulose derivatives and lyocell fibers and tencel Cotton etc. Regarding the above-mentioned semi-synthetic fiber, the semi-synthetic cellulose fiber may include, for example, acetate fiber, and the fiber may include, for example, trimer acetate fiber and dimer acetate fiber.

For the above-mentioned synthetic fibers, for example, heat-fusible fibers can be cited. Examples of the fibers include polyolefin-based polymers, such as polyethylene or polypropylene; polyester-based polymers, such as p-benzene. Formate-based polymers, such as polyethylene terephthalate (PET), polybutylene tere-benzoate, polypentene tere-benzoate; polyamide-based polymers such as Examples include nylon 6 or nylon 6,6; polyacrylic acid-based polymers; polyacrylonitrile-based polymers; or these modified compounds, or fibers formed by a combination of these.

In the temperature-sensitive article of the present invention (Invention A), the fabric constituting the liquid-permeable sheet, the second sheet, and the desired third sheet may have hydrophilicity or lipophilicity. The hydrophilic fabric is treated with a hydrophilizing agent well-known in the technical field (for example, applying a hydrophilizing agent, mixing in a hydrophilizing agent) to form a fabric or a material that constitutes a fabric. Examples of the above-mentioned hydrophilizing agent include alkyl phosphate ester salts, alkyl phosphate metal salts, and the like. In addition, the above-mentioned hydrophilizing agent includes, for example, an alkyl phosphate ester salt having 10 to 30 carbon atoms; and a mixture of a betaine compound, sulfate ester salt, or sulfonate salt having 10 to 30 carbon atoms; Mixture of alkyl phosphate ester salt and polyether modified polysiloxane, etc. In addition, the degree of hydrophilization of the fabric can be adjusted according to the type, concentration, amount, etc. of the hydrophilizing agent.

For fabrics with lipophilicity, they are processed by a lipophilic agent known in the technical field (for example, coating lipophilic agent, mixing in lipophilic agent) to form the fabric, or the material (fiber, Fiber raw materials, etc.). Examples of the above lipophilic agent include fatty acid esters (for example, triglycerides) and hydrocarbons (for example, linear hydrocarbons). In addition, the lipophilicity of the fabric can be adjusted according to the type, concentration, amount, etc. of the lipophilic agent.

In the temperature-sensitive article of the present invention (Invention A), in the temperature-imparting area, the solution density of the temperature-imparting solution where the liquid-permeable sheet is present is higher than that of the temperature-imparting solution where the second sheet is present, and is preferably higher 5 to 300% by mass, more preferably 10 to 200% by mass, and more preferably 20 to 100% by mass. Because of this, a strong warming effect can be imparted in the initial stage of the installation, and it is difficult to provide irritation to the skin contact part of the wearer who touches the warming-sensing agent after installation.

In the temperature-sensitive article of the present invention (Invention A), the solution density of the temperature-imparting solution in which the liquid-permeable sheet is present may also vary depending on the type of the temperature-imparting agent and the solvent constituting the temperature-imparting solution. For example, when the solvent constituting the temperature-imparting solution is a lipophilic solvent, the solution density of the temperature-imparting solution in which the liquid-permeable sheet is present is preferably 0.002×10 ^-1 to 0.500 g/cm ³ , more preferably 0.003×10 ^-1 ～0.400g/cm ³ , and most preferably 0.004×10 ^-1 ～0.300g/cm ³ . Moreover, for example, when the solvent constituting the temperature-imparting solution is a hydrophilic solvent, the solution density of the temperature-imparting solution in which the liquid-permeable sheet is present is preferably 0.200 to 0.600 g/cm ³ , more preferably 0.250 to 0.550 g/cm ³ , And the most ideal is 0.300～0.500g/cm ³ . Because of this, a strong warming effect can be imparted at the initial stage of installation.

In the present invention (Invention A), the level of the solution density of the temperature-imparting solution in the liquid-permeable sheet, the second sheet, and the desired third sheet can be observed with an optical microscope, etc. Implement it. In addition, the method of measuring the solution density of the temperature imparting solution in the liquid-permeable sheet, the second sheet, and the desired third sheet will be described later.

In the temperature-sensitive article of the present invention (Invention A), it is desirable that the fiber density of the fabric constituting the liquid-permeable sheet is higher than that of the fabric constituting the second sheet, and the fabric constituting the liquid-permeable sheet is higher than the fabric constituting the second sheet. two sheets of fabric in a more desirable greater than ³ fiber density difference 0.005g / cm, more preferably having a fiber density is greater than the difference between ^{3 0.010g} / cm, and then having the ideal 0.015g / cm ³ The above-mentioned difference in the large fiber density is more preferably a large fiber density with a difference of 0.020 g/cm ³ or more, and still more preferably a large fiber density with a difference of 0.025 g/cm ³ or more, It is still more desirable to have a large fiber density with a difference of 0.030 g/cm ³ or more.

In addition, the fabric constituting the liquid-permeable sheet has a larger fiber density that is desirably 0.440 g/cm ³ or less than the fiber density of the fabric constituting the second sheet, and more desirably has a difference of 0.300 g/cm ³ or less A large fiber density is preferably a large fiber density with a difference of 0.250 g/cm ³ or less, and a large fiber density with a difference of 0.200 g/cm ³ or less is more desirable, and it is still more desirable A large fiber density with a difference of 0.150 g/cm ³ or less, and a larger fiber density with a difference of 0.100 g/cm ³ or less, and still more preferably a fiber density of 0.060 g/cm ³ or less The poorly large fiber density is more preferably a large fiber density with a difference of 0.045 g/cm ³ or less, and still more preferably a large fiber density with a difference of 0.040 g/cm ³ or less, It is more desirable to have a large fiber density with a difference of 0.035 g/cm ³ or less. In addition, the measuring method of the said fiber density is mentioned later.

Because of this, when the temperature-sensitive article is pressurized before or during loading, and the temperature-imparting solution is temporarily moved, the temperature-imparting solution easily returns to satisfy the predetermined solution density relationship of the temperature-imparting solution. As a result, the wearer is less likely to feel itching at the initial stage of use, and after the wearer removes the warm-sensitive article, it is difficult for the wearer to feel irritation at the skin contact part that touches the warm-feeling agent.

In the temperature-sensitive article of the present invention (Invention A), the second sheet preferably has a fiber density of 0.005 to 0.120 g/cm ³ , more preferably a fiber density of 0.010 to 0.100 g/cm ³ , and more preferably The fiber density is 0.020～0.080g/cm ³ .

The present invention (Invention A), the fiber density of the liquid-permeable sheet, the second sheet, and the desired third sheet; the temperature of the liquid-permeable sheet, the second sheet, and the desired third sheet provides the solution The density of the solution is measured as follows. (1) Prepare FS-60DS manufactured by Daiei Scientific Precision Manufacturing Co., Ltd. in a constant temperature and humidity room with temperature: 20±5°C and humidity: 65±5%RH [measurement surface: 44mm (diameter), measurement pressure: 3g /cm ² ], and put a plurality of temperature-sensitive sheets in the constant temperature and humidity room for 24 hours.

(2) From each of the separated liquid-permeable sheet and the second sheet of the plurality of temperature-sensitive sheets, and the desired third sheet (hereinafter referred to as "sample"), a sample sheet with a size of 10 cm × 10 cm is taken from each sample [Area: s (cm ² )]. In addition, when a sample piece of 10 cm×10 cm cannot be collected from each sample, a sample piece of 10 cm×10 cm may be formed from a plurality of samples, or the size of each sample may be adjusted.

(3) Measure the mass of each sample piece: m ₁ (g). (4) Use FS-60DS to press different 5 parts of each sample piece, measure the thickness of each part after 10 seconds of pressing, and use the average of the 5 measured values as the thickness of each sample piece: t(cm). (5) Wash each sample with a cleaning solvent suitable for the polarity of the temperature-imparting solution (for example, toluene when the temperature-imparting solution is a lipophilic solvent; ethanol when the temperature-imparting solution is a hydrophilic solvent). sheet. (6) Dry each cleaned sample piece at 70°C for 1 hour, and measure the mass after drying: m ₂ (g).

(7) Use the following formula: sd(g/cm ³ )=(m ₁ -m ₂ )/s/t to calculate the solution density of the temperature-imparting solution in each sample piece: sd(g/cm ³ ) . (8) In each of the liquid permeable sheet, the second sheet, and the desired third sheet, calculate the solution density of a total of 10 sample sheets: the average value of sd ₁ (g/cm ³ ), and use the average The value is taken as the density of the solution: SD (g/cm ³ ). (9) The following mathematical formula: fd (g/cm ³ )=m ₂ /s/t to calculate the fiber density of each sample piece: fd (g/cm ³ ). (10) For each of the liquid-permeable sheet, the second sheet, and the desired third sheet, calculate the fiber density of a total of 10 sample sheets: the average value of fd (g/cm ³ ), and use the average value As the fiber density: FD (g/cm ³ ).

In the temperature-sensitive article of the present invention (Invention A), when the solvent constituting the temperature-sensitive imparting solution is a lipophilic solvent, the lipophilicity of the fabric constituting the liquid-permeable sheet is higher than that of the fabric constituting the second sheet. ideal. In the temperature-sensitive article of the present invention (Invention A), when the solvent constituting the temperature-sensitive imparting solution is a hydrophilic solvent, the hydrophilicity of the fabric constituting the liquid-permeable sheet is higher than that of the fabric constituting the second sheet High is ideal.

Because of this, when the temperature-sensitive article is pressurized before or during loading, and the temperature-imparting solution is temporarily moved, the temperature-imparting solution easily returns to satisfy the predetermined solution density relationship of the temperature-imparting solution. As a result, the wearer is less likely to feel itching at the initial stage of wearing, and after removing the warm-sensitive article, the wearer who touches the warm-feel imparting agent does not easily feel irritation at the skin contact area. In addition, when the temperature-sensing imparting solution is applied to any one of the liquid-permeable sheet and the second sheet, or even when a uniform amount is applied to both the liquid-permeable sheet and the second sheet, it is easy to form the temperature-providing solution. The solution density relationship.

In the present invention (Invention A), the degree of lipophilicity and the degree of hydrophilicity of the liquid-permeable sheet, the second sheet, and the desired third sheet are evaluated in the following manner. (1) Prepare the automatic minimum contact angle meter MCA-J of Japan Kyowa Interface Chemical Co., Ltd. in a constant temperature and humidity room with temperature: 20±5°C and humidity: 65±5%RH, and the liquid permeability is measured in the constant temperature and humidity room. The sheet, the second sheet, and the desired third sheet (hereinafter referred to as "sample") are allowed to stand for 24 hours. (2) From the inkjet of MCA-J, drop tiny droplets of deionized water (20pL) on the surface of the sample that must be measured (when the sample is fabric, it is the surface of the fiber, when the sample is a sheet, it is the surface of the sheet , Record the appearance of tiny droplets at any time. (3) Perform image analysis on the image after the micro droplets are attached to the surface of the sample, and calculate the contact angle of the micro droplets to the surface of the sample. (4) The contact angle is the average of the measured values at 20 locations using 20 different fibers. (5) A sample with a large contact angle is regarded as a sample with high lipophilicity (a sample with low hydrophilicity), and a sample with a small contact angle is regarded as a sample with low lipophilicity (a sample with high hydrophilicity).

The temperature-sensitive article of the present invention (Invention A) may further include: a range overlapping with the temperature-sensitive article in the thickness direction of the temperature-sensitive article, adjacent to the surface of the second sheet opposite to the liquid-permeable sheet, and constituting a temperature The third sheet made of fabric in the feeling imparting area. In addition, while the third sheet maintains the temperature-sensitive solution, it is desirable that the solution density of the temperature-imparting solution of the third sheet is lower than that of the second sheet, and the temperature of the third sheet is imparting a sense of presence than the solution temperature sensitive over the second sheet imparting solution having a small difference in fiber density of ³ or more 0.005g / cm, more preferably having a small difference in fiber density of at least ^{3 0.010g} / cm, and yet more desirable It is a small fiber density with a difference of 0.015 g/cm ³ or more, and more preferably a small fiber density with a difference of 0.020 g/cm ³ or more, and even more preferably a difference of 0.025 g/cm ³ or more It has a small fiber density, and more preferably a small fiber density with a difference of 0.030 g/cm ³ or more.

In addition, the temperature-imparting solution in the presence of the third sheet desirably has a small fiber density of 0.440 g/cm ³ or less, and more desirably has a difference of 0.300 g/cm ³ or less than the temperature-imparting solution in the second sheet. A small fiber density, more preferably a small fiber density with a difference of 0.250 g/cm ³ or less, more preferably a small fiber density with a difference of 0.200 g/cm ³ or less, and even more preferably a fiber density of 0.150 A fiber density with a difference of less than g/cm ³ is more preferably a fiber density with a difference of 0.100 g/cm ³ or less, and a fiber density of a difference of 0.060 g/cm ³ or less is more preferable The small fiber density is still more desirable to have a small fiber density of 0.045 g/cm ³ or less, and it is even more desirable to have a small fiber density of 0.040 g/cm ³ or less, It is still more desirable to have a small fiber density of 0.035 g/cm ³ or less.

Because of this, if the relatively medium-density temperature-imparting solution of the liquid-permeable sheet moves to the wearer’s skin and is consumed, the relatively low-density temperature-imparting solution of the third sheet moves to the liquid-permeable sheet via the second sheet. In the later stage of the application, the relatively low-density temperature imparting solution from the liquid-permeable sheet moves to the skin of the wearer, and can impart a weak warming effect to the skin of the wearer.

In addition, when the user finishes the use of the temperature-sensitive article and takes off the temperature-sensitive article for bathing, etc., in the later stage of the installation, because the relatively low-density temperature imparting solution causes the temperature effect, the user It is not easy to feel irritation at the contact part of the skin contacting the warming agent due to hot water or the like.

When the temperature-sensitive article of the present invention (Invention A) further includes a third sheet, the fiber density of the fabric constituting the third sheet is preferably lower than the fiber density of the fabric constituting the second sheet. Because of this, when the temperature-sensitive article is pressurized before or during loading, and the temperature-imparting solution is temporarily moved, the temperature-imparting solution easily returns to satisfy the predetermined solution density relationship of the temperature-imparting solution.

When the temperature-sensitive article of the present invention (Invention A) further includes a third sheet, when the solvent constituting the temperature-sensitive imparting solution is a lipophilic solvent, the lipophilicity of the fabric constituting the third sheet is higher than that of the fabric constituting the second sheet. It is desirable to have lower oiliness, and the lipophilicity of the fabric constituting the liquid-permeable sheet is higher than that of the fabric constituting the second sheet, and the lipophilicity of the fabric constituting the third sheet is higher than that of the second sheet The lower lipophilicity of the fabric is ideal. Because of this, when the temperature-sensitive article is pressurized before or during loading, and the temperature-imparting solution is temporarily moved, the temperature-imparting solution easily returns to satisfy the predetermined solution density relationship of the temperature-imparting solution.

When the temperature-sensitive article of the present invention (Invention A) further includes a third sheet, when the solvent constituting the temperature-sensitive imparting solution is a hydrophilic solvent, the hydrophilicity of the fabric constituting the third sheet is higher than that of the fabric constituting the second sheet The degree of hydrophilicity is lower, and the degree of hydrophilicity of the fabric constituting the liquid-permeable sheet is higher than that of the fabric constituting the second sheet, and the degree of hydrophilicity of the fabric constituting the third sheet is higher than that of the second sheet. It is ideal that the degree of hydrophilicity of the fabric is lower. Because of this, when the temperature-sensitive article is pressurized before or during loading, and the temperature-imparting solution is temporarily moved, the temperature-imparting solution easily returns to satisfy the predetermined solution density relationship of the temperature-imparting solution.

The temperature-sensitive article of the present invention (Invention A) preferably has a thickness retention rate of the liquid-permeable sheet smaller than that of the second sheet, more preferably 10 to 90% less, and even more preferably 20 less ~85%, and more ideally 30~70%. Because of this, the liquid-permeable sheet becomes easier to collapse moderately than the second sheet. When body pressure is applied to a temperature-sensitive article, the thickness of the liquid-permeable sheet is likely to become thinner, maintaining the warmth of the liquid-permeable sheet. The solution easily moves to the skin of the wearer. Further, the holding ratio represents the ratio of the thickness when the thickness of the load with respect to the thickness of the sheet at the 3g / cm ² load of 30g / cm ² in.

The present invention (Invention A) is temperature-sensitive items, the liquid through the thickness when a load of sheet 30g / cm ² is the desired thickness at 3g / cm ² load was 70% or less, more preferably 60% or less, and the most desirable It is 50% or less. Because of this, when body pressure or the like is applied to the temperature-sensitive article, the liquid-permeable sheet becomes easy to collapse, and the warm feeling maintained by the liquid-permeable sheet gives the solution easy contact with the wearer's skin.

The present invention (Invention A) is temperature-sensitive items, the liquid through the thickness when a load of sheet 10g / cm ² is the desired thickness at 3g / cm ² load was 70% or more, more preferably 80% or more, and the most desirable It is more than 90%. Because of this, the liquid-permeable sheet is less likely to collapse excessively under the pressure of wearing clothes or the like.

In the present invention (Invention A), the thickness under a load of 30 g/cm ² , 10 g/cm ² and 3 g/cm ² is measured as follows. (1) Prepare FS-60DS manufactured by Daiei Scientific Precision Manufacturing Co., Ltd. in a constant temperature and humidity room with temperature: 20±5°C and humidity: 65±5%RH, and place the liquid-permeable sheet in the constant temperature and humidity room (Hereinafter referred to as "sample") Let stand for 24 hours. (2) Change the position to measure the thickness of the sample at 10 points, and use the average value as the thickness of the sample. The load is adjusted by changing the gauge head. Under the condition of load: 3g/cm ² , use the gauge head of diameter: 44mm, under the condition of load: 10g/cm ² , use the gauge head of diameter: 25mm, and then under the condition of load: 30g/cm ² Next, use a gauge head with a diameter of 14mm.

Each of the liquid-permeable sheet and the second sheet preferably has a basis weight of 10 to 100 g/m ² and more preferably has a basis weight of 20 to 50 g/m ² . In addition, the desired third sheet desirably has a basis weight of 10 to 1,000 g/m ² , and more desirably has a basis weight of 20 to 100 g/m ² .

In the temperature-sensitive article of the present invention (Invention A), the thickness of the region overlapping with the temperature-sensitive article of the temperature-sensitive article is preferably thicker than the thickness of the region not overlapping with the temperature-sensitive article. Because of this, it is easy for the wearer to push into the area overlapping with the temperature-imparting region, and it is easy to release the temperature-imparting solution from the temperature-imparting region.

In the temperature-sensitive article of the present invention (Invention A), the liquid-permeable sheet may include fibers selected from the group consisting of heat-generating fibers, heat-insulating fibers, and hygroscopic fibers, and any combination of these (Hereinafter, it may only be referred to as "functional fiber"). If the liquid-permeable sheet contains the above-mentioned predetermined functional fibers, the main stratum corneum of the wearer’s skin is easily swollen due to moisture from the wearer’s evaporation, sweat, etc., so that the warm feeling imparting solution can easily reach the main existing The TRP ion channel of keratinocytes (keratinocytes). As a result, the warm feeling time is shortened, and when the warm feeling imparting agent is a high temperature feeling imparting agent, the wearer is less likely to feel itching during the high temperature feeling time.

Examples of the heat-generating fibers include (i) moisture-absorbing heat-generating fibers, (ii) heat storage fibers, and (iii) far-infrared radiating fibers.

Examples of the above-mentioned moisture-absorbing and heat-generating fibers include acrylic fibers and wool. The above-mentioned heat storage fiber includes, for example, a fiber containing a substance (zirconium carbide, etc.) that absorbs sunlight and converts into heat energy, and a fiber containing a carbon material. Examples of the above-mentioned far-infrared emitting fibers include fibers containing ceramics that emit far-infrared rays when heated. Examples of the above heat-insulating fibers include hollow fibers and feathers. Examples of the above-mentioned hygroscopic fibers include the above-mentioned natural fibers and semi-synthetic fibers.

Specifically, in the temperature-sensitive article of the present invention (Invention A), when the liquid-permeable sheet contains moisture-absorbing heat-generating fibers, it will absorb moisture from the wearer’s skin such as evaporation and sweat. Fever, the pretender will sweat easily. Next, the main stratum corneum of the wearer's skin swells due to the moisture of the wearer's sweat, so that the warm feeling imparting solution can easily reach TRP ion channels mainly present in keratinocytes (keratinocytes). As a result, the warm feeling time becomes shorter, and the wearer is less likely to feel itching during the warm feeling time.

In addition, even when the liquid-permeable sheet contains heat storage fibers or far-infrared radiating fibers, the wearer is prone to sweat. The moisture of the wearer’s sweat causes the main stratum corneum of the wearer’s skin to swell and warm the skin. The sensation-imparting solution easily reaches TRP ion channels mainly present in keratinocytes (keratinocytes). As a result, the warm feeling time becomes shorter, and the wearer is less likely to feel itching during the warm feeling time.

In the temperature-sensitive article of the present invention (Invention A), when the liquid-permeable sheet contains heat-insulating fibers, the wearer is likely to sweat, and the moisture content of the wearer’s sweat will make the wearer’s skin the main keratin The layer swells, so that the temperature-imparting solution can easily reach TRP ion channels mainly in keratinocytes (keratinocytes). As a result, the warm feeling time is shortened, and when the warm feeling imparting agent is a high temperature feeling imparting agent, the wearer is less likely to feel itching during the high temperature feeling time.

In the temperature-sensitive article of the present invention (Invention A), when the liquid-permeable sheet contains hygroscopic fibers, the hygroscopic fibers retain moisture such as evaporation and sweat of the wearer, and make the main stratum corneum of the wearer’s skin Swelling makes it easy for the temperature-imparting solution to reach TRP ion channels mainly in keratinocytes (keratinocytes). As a result, the warm feeling time becomes shorter, and the wearer is less likely to feel itching during the warm feeling time.

In the temperature-sensitive article of the present invention (Invention A), as far as the material of the liquid-impermeable sheet is concerned, there is no particular limitation as long as it is liquid-impermeable. For example, a film, such as: polyethylene, polypropylene Moisture-permeable films, non-moisture-permeable films, and multiple-layer non-woven fabrics such as SMS in which the moisture-permeable film is joined to non-woven fabrics such as spunbond or water needle.

In the temperature-sensitive article of the present invention (Invention A), the liquid-impermeable sheet is preferably composed of a moisture-impermeable film. Because of this, the moisture, water vapor and other non-permeable liquid impermeable sheets existing in the warm feeling imparting area and the wearer's skin in contact with the warm feeling imparting area are discharged out of the warm sensitive article, and the wearer's skin is easily maintained The main stratum corneum is in a swollen state, so that the temperature-imparting solution can easily reach the TRP ion channels mainly present in keratinocytes (keratinocytes). As a result, the warm feeling time becomes shorter, and the wearer is less likely to feel itching during the warm feeling time. The liquid-impermeable sheet preferably has a basis weight of 10 to 50 g/m ² , and more preferably has a basis weight of 15 to 30 g/m ² .

As for the above-mentioned absorbent body, the core layer is one covering the absorbent core containing pulp fiber and polymer absorbent. The core layer may include: covering the absorbent core containing the polymer absorbent or covering the absorbent formed by the polymer absorbent Core ones and so on.

The temperature-sensitive article of the present invention (Invention A) may include an additional member between the liquid-permeable sheet and the liquid-impermeable sheet, that is, for example, may include an auxiliary sheet or the like. The material of the above-mentioned auxiliary sheet may be exemplified as a fabric constituting the liquid-permeable sheet.

The temperature-sensitive article of the present invention (Invention A) may be provided with an adhesive portion for fixing the temperature-sensitive article to clothing, the skin of the wearer, etc., and the adhesive portion may be a hot melt adhesive, for example, : Styrene-ethylene-butadiene-styrene (SEBS), styrene-butadiene-styrene (SBS), styrene-isoprene-styrene (SIS) and other rubber systems as the main body; or Pressure-sensitive adhesive or heat-sensitive adhesive based on olefins such as linear low-density polyethylene; composed of water-soluble polymers (for example: polyvinyl alcohol, carboxymethyl cellulose, gel, etc.) or Water-swellable polymer (for example: polyvinyl acetate, sodium polyacrylate, etc.) water-sensitive adhesives, etc.

The temperature-sensitive article of the present invention (Invention A) is preferably packaged with a packaging sheet before use. From the viewpoint of protecting the temperature-sensing solution held by the temperature-sensitive article, and the viewpoint of keeping the temperature-sensitive article with the temperature-sensitive article from leaking to the outside. For example, the temperature-sensitive article of the present invention (Invention A) is preferably a package in which one or more temperature-sensitive articles are packaged with a packaging sheet, and more preferably, a package in which one temperature-sensitive article is packaged with a packaging sheet.

As for the material of the above-mentioned packaging sheet, for example, polyolefin-based polymers, and examples thereof include polyethylene and polypropylene. The packaging sheet may include an airtight layer from the viewpoint of improving the airtightness of the individual packaging body, and the material of the airtight layer is, for example, ethylene vinyl alcohol copolymer, vinylidene chloride polymer , Such as: vinylidene chloride methyl acrylate polymer, polyvinyl alcohol, nylon, such as Nylon 6, aluminum foil, base film (polyethylene terephthalate, etc.) vapor-deposited with oxidation Aluminum, silica, etc.

The temperature-sensitive article of the present invention (Invention A) is not particularly limited as long as it contains a temperature-sensitive imparting solution, and examples thereof include absorbent articles and temperature-sensitive sheets. There are no special restrictions on the above-mentioned absorbent articles. Examples of those with absorbent bodies include: sanitary napkins, underwear-type sanitary napkins, sanitary pads, disposable diapers, incontinence pads , Interlabial pads, tampons, puerperal pads, breast milk pads, pads for hemorrhoids, sweat pads, bedsore sheets (dressing sheets), pet diapers, pet sheets, etc.

The above-mentioned absorbent article contains the temperature-imparting area of the temperature-imparting solution, which can be arranged at a position where the absorbent body does not overlap in the thickness direction of the absorbent article in the planar direction of the absorbent article; The position where the direction is repeated; the position of any combination of these, etc.

The above-mentioned temperature-sensitive sheet includes, for example, a temperature-sensitive sheet that is fixed to the wearer's clothing (for example, when the liquid-impermeable sheet's clothing abuts the mask and is fixed to the adhesive part of the wearer's clothing, the above The adhesive part is adhered to the inner surface of the clothing for the user), and the skin-fixed temperature-sensitive sheet (for example, on the skin contact surface of the liquid-permeable sheet (for example, the periphery of the warm-sensitive sheet) is provided with the skin of the wearer For the adhesive part for use, stick the adhesive part on the skin of the wearer for the user).

There are no particular restrictions on the wearing clothes to which the clothes-fixing temperature-sensitive sheet is fixed. For example, a part that directly contacts the skin of the wearer may be mentioned, and it is ideal to fit the wearer to the user. For the above-mentioned wearing clothes, for example, personal clothes (for example, underwear, underwear, bra, etc.); outer clothes (for example: tops, lower body clothes); socks; gloves; scarves; masks; eye masks, etc.

There are no special restrictions on the parts where the above-mentioned temperature-sensitive sheet can impart temperature (high temperature, low temperature), for example: head (for example, face, such as eyes); neck, upper limbs (for example: chest, Abdomen, groin, back, waist, upper arm, forearm, hand); lower limbs (for example: thigh, calf, foot), etc.

In the above-mentioned temperature-sensitive sheet, the temperature-sensitive area containing the temperature-sensitive sheet can be arranged on the entire surface, the center portion, the peripheral edge, and any combination of these in the planar direction of the temperature-sensitive sheet.

<Invention B> Hereinafter, the temperature-sensitive article of the present invention (Invention B) will be described in detail. Figs. 12 to 15 are diagrams for explaining one sanitary napkin 401 as a temperature-sensitive article (hereinafter referred to as "first embodiment") according to an embodiment of the present invention (invention B). In addition, in the following, only "the sanitary napkin according to the first embodiment as a temperature-sensitive article" is simply referred to as "the sanitary napkin according to the first embodiment". Specifically, FIG. 12 is a plan view of the sanitary napkin 401 according to the first embodiment. Fig. 13 is an exploded perspective view of the sanitary napkin 401 according to the first embodiment. Fig. 14 is a cross-sectional view of the sanitary napkin 401 in the XIV-XIV cross section of Fig. 1. FIG. 15 is a diagram showing the installed state of the sanitary napkin 401.

The sanitary napkin 401 according to the first embodiment has a longitudinal direction L, a width direction W, and a thickness direction T orthogonal to each other, and includes an absorbent body 403, which is arranged in front of the longitudinal direction L from the absorbent body 403 The warm body 405. The sanitary napkin 401 is provided with the absorbent body 403: a liquid-permeable sheet 407 that abuts on the wearer’s skin during installation, a liquid-impermeable sheet 409 that abuts on the clothing 419 during installation, and The absorber 411 between the liquid-permeable sheet 407 and the liquid-impermeable sheet 409. In addition, the sanitary napkin 401 is provided with the temperature-sensitive main body 405: a liquid-permeable sheet 407 that abuts on the wearer's skin during installation, and a liquid-impermeable sheet 409 that abuts on the clothing 419 during installation. And the second sheet 413 and the shape maintaining member 415 arranged between the liquid-permeable sheet 407 and the liquid-impermeable sheet 409. The shape retaining member 415 is arranged on the liquid impermeable sheet 409 side more than the second sheet 413.

In addition, the liquid-permeable sheet 407 in the absorbent body 403 and the liquid-permeable sheet 407 in the temperature-sensitive body 405 are composed of a sheet formed of a hydrophilic non-woven fabric that is treated with a hydrophilizing agent. In addition, the liquid impermeable sheet 409 of the absorbent body 403 and the liquid impermeable sheet 409 of the temperature-sensitive body 405 are also composed of an integrated sheet. In addition, a part of the absorber 411 of the absorbing body 403 and the shape retaining member 415 of the temperature-sensitive body 405 are partially overlapped in the thickness direction T at the repeating portion 417. In the repeating portion 417, the absorber 411 is arranged to maintain a larger shape. The member 415 is closer to the position of the liquid-permeable sheet 407.

The sanitary napkin 401 is provided with an adhesive part 421 for fixing the sanitary napkin 401 to the wearer's clothing 419 on both the absorption main body 403 and the temperature-sensitive main body 405. One surface of the adhesive portion 421 is fixed to the liquid-impermeable sheet 409, and the other surface is temporarily fixed to the inner surface of the packaging sheet 429 provided with releasability.

The sanitary napkin 401 is in the unused state together with the packaging sheet 429 with the first folding axis F ₁ in the longitudinal direction extending in the longitudinal direction L and the second folding axis F ₂ in the longitudinal direction extending in the width direction W. The first folding axis F ₃ in the width direction, the second folding axis F _{4 in the} width direction and the third folding axis F _{5 in the} width direction are the base axes and are folded to form a package of the sanitary napkin 401 (not shown) . In addition, the first folding axis F ₃ in the width direction, the second folding axis F ₄ in the width direction, and the third folding axis F _{5 in the} width direction are respectively arranged in the front, center, and rear of the sanitary napkin 401.

In addition, the first folding axis F ₃ in the widthwise direction is arranged in the expanded state of the sanitary napkin 401 and the packaging sheet 429 so as to overlap the second sheet 413 (temperature sensitive body 431 described later) in the thickness direction T. In the unfolded state of the sanitary napkin 401 and the packaging sheet 429, the first folding axis F _{1 in the} longitudinal direction and the second folding axis F ₂ in the longitudinal direction are not overlapped with the absorbent body 411 in the thickness direction T. The two sheets 413 (the temperature-sensitive body 431 described later) overlap in the thickness direction T.

The individual package of the sanitary napkin 401 has the first folding axis F _{1 in the} longitudinal direction and the second folding axis F _{2 in the} longitudinal direction as the base axis, and the sanitary napkin 401 is folded inward toward the width direction W. The sanitary napkin 401 and the packaging sheet 429 are then folded with the first folding axis F _{3 in the} width direction and the third folding axis F _{5 in the} width direction as the base axis, and the sanitary napkin 401 is folded inward toward the longitudinal direction L, and then, It is formed by folding the sanitary napkin 401 inward toward the longitudinal direction L with the second folding axis F _{4 in the} widthwise direction as the base axis.

In addition, the sanitary napkin 401 is provided with a pair of wings 423, a sealing part 425, an embossing part 427, etc. for fixing the sanitary napkin 401 to the clothes 419, but it is a well-known person in this technical field. The description is omitted.

In the sanitary napkin 401, the absorbent body 403 and the temperature-sensitive body 405 are arranged in such a way that the excretion port contact area (not shown) of the absorber 411 of the absorbent body 403 abuts against the wearer's excretion port contact area When the clothes 419 are worn, the temperature-sensitive body 405, especially the second sheet 413, is arranged at a position corresponding to the lower abdomen of the wearer. In other words, it is the distance between the excretion opening contact area (not shown) of the absorbent body 411 constituting the absorbent body 403 and the second sheet 413 of the temperature-sensitive body 405, and the distance from the excretion opening of the wearer and the lower abdomen (The distance on the skin surface) is approximately equal.

The absorbent body 403 has the same shape as a normal sanitary napkin. The second sheet 413 is composed of a hydrophilic non-woven fabric treated with the same hydrophilizing agent as that used in the liquid-permeable sheet 407, and a temperature-sensitive solution (not shown) is coated on the whole. The second sheet 413 The whole constitutes the temperature sensing body 431. In addition, as shown in FIG. 14, the fiber density of the nonwoven fabric constituting the temperature-sensitive body 431 (second sheet 413) is higher than the fiber density of the nonwoven fabric constituting the liquid-permeable sheet 407. Moreover, the length of the widthwise direction W of the second sheet 413 is longer than the length of the widthwise direction W of the absorber 411, and the constituent temperature sensitive body 431 is arranged in a wider area in the widthwise direction W than the absorber 411.

The temperature sensing solution contains: a temperature sensing agent that activates TRP ion channels, and a lipophilic solvent. The sanitary napkin 401 is fixed to the wearing clothes 419. When in use, the temperature-sensitive solution permeable sheet 407 contained in the temperature-sensitive body 431 (second sheet 413) contacts the skin of the wearer, causing the wearer’s The TRP ion channel of the temperature sensitive agent contact part of the skin is activated efficiently, and the lower abdomen of the wearer can be efficiently imparted with a warm feeling.

By imparting a warm feeling to the lower abdomen of the wearer, the TRP ion channel of the warming agent contact part of the skin of the wearer's lower abdomen is activated, and heat can be expected via the sympathetic nervous system. It is generated from the warming agent contact part, and the temperature of the warming agent contacting part of the wearer's skin is increased, thereby warming the part close to the wearer's uterus and alleviating the wearer's physical pain. In addition, by warming the vicinity of the wearer's uterus, it can be expected to reduce the wearer's premenstrual syndrome (premenstrual syndrome), cold resistance, menopausal disorders, etc.

The inventors of the present invention found that the temperature-sensitive article containing a temperature-sensitive agent tends to have a longer time to feel the desired temperature (warming sensation time) than that of a heat-generating article containing a heat-generating agent (for example, iron powder). During this warm feeling time, the wearer easily feels itching. In addition, the inventors of the present invention found that the temperature-sensitive article containing a temperature-sensitive agent is compared with a heat-generating article containing a heat-generating agent (such as iron powder), depending on the condition of the wearer’s skin (such as the dryness of the wearer’s skin, etc.) , There is a difference in the way of feeling warm. For example, when the skin of the wearer is moistened with water, it is easier to maintain the swelling state of the main stratum corneum of the wearer’s skin than when the wearer’s skin is dry. The warm solution is mainly easy to reach the presence of keratinocytes (keratinocytes). Cell) TRP ion channel, so it is easy to feel warm (the warm feeling time is short).

In the sanitary napkin 401 according to the first embodiment, as shown in FIG. 14, the fiber density of the non-woven fabric constituting the temperature-sensitive body 431 (second sheet 413) is higher than the fiber density of the non-woven fabric constituting the liquid-permeable sheet 407 Therefore, in a state where no force is applied, the temperature-sensitive solution is easily held by the temperature-sensitive body 431 (second sheet 413) with high fiber density. When the wearer pushes the part overlapping the temperature sensitive body 431 of the sanitary napkin 401 in the thickness direction T, the temperature sensitive solution moves to the liquid permeable sheet 407, and then moves to the wearer's skin. As a result, it is easy to feel the warm feeling at the temperature sensitive agent contact part of the temperature sensitive agent (temperature sensitive body 431) of the wearer's skin.

Next, if the wearer does not push the part overlapping the temperature-sensitive body 431 of the sanitary napkin 401 in the thickness direction T, the temperature-sensitive solution will easily return from the liquid-permeable sheet 407 with low fiber density to the one with high fiber density. Temperature sensing body 431 (second sheet 413). As a result, the warming agent contact part of the wearer's skin is less likely to be excessively warm.

As shown in FIG. 14, the thickness of the area overlapping the temperature-sensitive body 431 of the sanitary napkin 401 is thicker than the thickness of the area not overlapping the temperature-sensitive body 431 of the sanitary napkin 401. Because of this, it is easy for the wearer to push into the area overlapping with the temperature-sensitive body 431, thereby easily releasing the temperature-sensitive solution from the temperature-sensitive body 431, and it is easier for the wearer to control the temperature feeling.

Fig. 16 is a diagram illustrating a panty-type sanitary napkin 501 as a temperature-sensitive article according to another embodiment of the present invention (invention B) (hereinafter referred to as "the second embodiment"), and shows the state of being worn Figure. In addition, the "underpants-type sanitary napkin according to the second embodiment as a temperature-sensitive article" may be simply referred to as the "underpants-type sanitary napkin according to the second embodiment" below.

The underwear type sanitary napkin 501 according to the second embodiment is composed of an underwear part 503 and an absorbent article part 505 arranged on the inner surface of the underwear part 503. The absorbent article part 505 is provided with the absorbent main body 507: a liquid-permeable sheet (not shown) that abuts on the skin of the wearer during installation, and a liquid-impermeable sheet (not shown) that abuts on the underwear part 503 ), and an absorber 511 arranged between them. In addition, the absorbent article part 505 is provided with the temperature-sensitive main body 509: a liquid-permeable sheet (not shown) that abuts on the wearer's skin during installation, and a liquid-impermeable sheet ( (Not shown), and the second sheet 513 and the shape maintaining member 515 arranged between them.

In addition, the liquid-permeable sheet (not shown) in the absorbent body 507 and the liquid-permeable sheet (not shown) in the temperature-sensitive body 509 are formed of a hydrophilic non-woven fabric treated with a hydrophilizing agent Consists of a single piece. In addition, the liquid-impermeable sheet (not shown) in the absorbent body 507 and the liquid-impermeable sheet (not shown) in the temperature-sensitive body 509 are also composed of an integrated sheet.

The second sheet 513 of the temperature-sensitive main body 509 is composed of a lipophilic non-woven fabric treated with a lipophilic agent. The second sheet 513 is coated with a temperature-sensitive solution (not shown) containing a temperature-sensitive agent that activates TRP ion channels and a lipophilic solvent (not shown). The whole of the second sheet 513 constitutes a temperature-sensitive body 517.

Like the sanitary napkin 401 according to the first embodiment, the fiber density of the nonwoven fabric constituting the temperature-sensitive body 517 (second sheet 513) is higher than the fiber density of the nonwoven fabric constituting the liquid-permeable sheet (not shown). In addition, the temperature-sensitive solution contains a lipophilic solvent, and the temperature-sensitive body 517 is composed of a lipophilic non-woven fabric, and the liquid-permeable sheet (not shown) is composed of a hydrophilic non-woven fabric. The degree of lipophilicity of the temperature-sensitive body 517 is The lipophilic precision is higher than that of the liquid-permeable sheet (not shown).

Therefore, in a state where no force or the like is applied, the temperature-sensitive solution containing the lipophilic solvent is easily held by the temperature-sensitive body 517 (second sheet 513) with high fiber density and high lipophilicity. When the wearer pushes the part overlapping the temperature-sensitive body 517 of the underwear-type sanitary napkin 501 in the thickness direction (not shown) of the underwear-type sanitary napkin 501, the temperature-sensitive solution moves to the liquid-permeable sheet (Not shown), and then move to the skin of the wearer. As a result, the temperature sensitive agent contact part of the temperature sensitive agent (temperature sensitive body 517) of the wearer's skin easily feels a warm feeling.

Next, if the wearer does not push the part overlapping with the temperature-sensitive body 517 of the underwear-type sanitary napkin 501 in the thickness direction (not shown) of the underwear-type sanitary napkin 501, the temperature-sensitive solution will be removed from the fiber density The liquid-permeable sheet (not shown) with low and low lipophilicity easily returns to the temperature-sensitive body 517 (second sheet 513) with high fiber density and high lipophilicity. As a result, the warming agent contact part of the wearer's skin is less likely to be excessively warm.

By imparting a warm feeling to the lower abdomen of the wearer, the TRP ion channel of the warming agent contact part of the skin of the wearer's lower abdomen is activated, and heat can be expected via the sympathetic nervous system. It is generated from the warming agent contact part, and the temperature of the warming agent contacting part of the wearer's skin is increased, thereby warming the part close to the wearer's uterus and alleviating the wearer's physical pain. In addition, it can be expected to reduce premenstrual syndrome, cold resistance, menopausal disorders, etc. of the wearer.

Figure 17 is a diagram illustrating yet another embodiment (hereinafter referred to as "the third embodiment") according to the present invention (invention B) as a disposable disposable diaper 601 for adults as a temperature-sensitive article, and shows Diagram of the installed state. In addition, the "disposable diapers according to the third embodiment as a temperature-sensitive article" may be simply referred to as "disposable diapers according to the third embodiment" below.

The disposable diaper 601 according to the third embodiment is provided with: a liquid-permeable sheet 603, a liquid-impermeable sheet 605, a liquid-permeable sheet 603, and a liquid-impermeable sheet arranged in contact with the wearer’s skin The absorbent body 607 between 605 and the second sheet 609 which is located forward of the absorbent body 607 and is arranged between the liquid-permeable sheet 603 and the liquid-impermeable sheet 605. The liquid permeable sheet 603 is composed of a hydrophilic non-woven fabric treated with a hydrophilizing agent.

The second sheet 609 is arranged to correspond to the lower abdomen of the wearer when the disposable diaper 601 is worn. The second sheet 609 is composed of a lipophilic non-woven fabric treated with a lipophilic agent, and a temperature-sensitive solution (not shown) is applied to the entire body. The entire second sheet 609 constitutes a temperature-sensitive body 611. The temperature sensing solution contains: a temperature sensing agent that activates TRP ion channels, and a lipophilic solvent. In addition, the non-woven fabric constituting the temperature-sensitive body 611 (the second sheet 609) and the liquid-permeable sheet 603 are made of the same non-woven fabric, and the fiber densities are the same.

In a state where no force or the like is applied, the temperature-sensitive solution containing a lipophilic solvent is easily held by the temperature-sensitive body 611 (second sheet 609) with high lipophilicity. If the wearer pushes the portion overlapping the temperature-sensitive body 611 of the disposable diaper 601 in the thickness direction (not shown) of the disposable diaper 601, the temperature-sensitive solution moves to the liquid-permeable sheet 603, then, moved to the wearer's skin. As a result, it is easy to feel the warm feeling at the warming agent contact part of the wearer's skin in contact with the warming agent.

Next, if the wearer does not push the part overlapping with the temperature-sensitive body 611 of the disposable diaper 601 in the thickness direction (not shown) of the disposable diaper 601, the temperature-sensitive solution will change from the lipophilicity The liquid-permeable sheet (not shown) with a low degree of lipophilicity easily returns to the temperature-sensitive body 611 (second sheet 609) with a high lipophilicity. As a result, it is difficult for the wearer's skin to feel excessively warm at the portion in contact with the warming agent.

By imparting a warm feeling to the lower abdomen of the wearer, the TRP ion channel of the warming agent contact part of the skin of the lower abdomen of the wearer is activated, and as a result, the heat is caused by the sympathetic nervous system. It is generated from the warming agent contact part, and it can be expected to increase the temperature of the warming agent contact part of the wearer's skin.

As a result, when the wearer of the disposable diaper 601 is a female, it can be expected that (i) the prostaglandin that is a factor of physical pain will be discharged, the muscles such as uterine tendons will relax, and the physical pain will be relieved, (ii) Promote blood circulation, promote the flow of lymph, discharge old waste, improve cold resistance, burn fat, (iii) improve immunity, etc. When the wearer of disposable diapers 601 is male, he can expect to (i) excrete prostaglandins, relax muscles and relieve pain, (ii) promote blood circulation, promote lymphatic fluid flow, and discharge old waste products. Improve cold resistance, burn fat, (iii) improve immunity, etc.

18 to 21 are diagrams for explaining the temperature-sensitive sheet 701 as a temperature-sensitive article according to still another embodiment (hereinafter referred to as "the fourth embodiment") of the present invention (invention B). In addition, in the following, "the temperature-sensitive sheet as a temperature-sensitive article according to the fourth embodiment" may be simply referred to as the "temperature-sensitive sheet according to the fourth embodiment". Specifically, FIG. 18 is a perspective view of the individual package body 703 of the temperature sensitive sheet individually packaging the temperature sensitive sheet 701 according to the fourth embodiment. Fig. 19 is a perspective view of a temperature-sensitive sheet 701 according to the fourth embodiment. Fig. 20 is an exploded perspective view of the temperature sensitive sheet 701 according to the fourth embodiment. FIG. 21 is a diagram showing the state of mounting the temperature-sensitive sheet 701 according to the fourth embodiment. In addition, in the following, the "individual packaging body of the temperature sensitive sheet" may only be referred to as the "individual packaging body".

The temperature-sensitive sheet 701 according to the fourth embodiment is the liquid-permeable sheet 707 and the second sheet 709 that abut on the skin of the wearer, and the liquid-impermeable sheet 711 that abuts on the clothes being fixed to The liquid-impermeable sheet 711 is provided in the order of attaching the liquid-impermeable sheet 711 to the adhesive part 713 for clothing 721 and the release sheet 715 for temporarily fixing the adhesive part 713, and has longitudinal directions orthogonal to each other. L, width direction W and thickness direction T. In addition, the liquid-permeable sheet 707 is composed of a hydrophilic non-woven fabric treated with a hydrophilizing agent, and has a skin contact surface 731 and a non-skin contact surface 733.

The second sheet 709 is composed of a hydrophilic non-woven fabric treated with the same hydrophilizing agent used in the treatment liquid permeable sheet 707, and the entire body is coated with a temperature-sensitive agent that activates TRP ion channels as a hydrophilic The temperature-sensitive solution (not shown) in water of a sexual solvent, and the entire second sheet 709 constitutes the temperature-sensitive body 741.

The temperature-sensitive sheet 701 has a folding axis F ₆ extending in parallel to the width direction W at the center in the longitudinal direction L. In addition, the individual packaging body 703 is packaged as a packaging sheet 705 by folding the skin contact surface 731 of the liquid-permeable sheet 707 toward the inside by using the folding axis F ₆ as the base axis of the temperature-sensitive sheet 701.

The adhesive part 713 is composed of a plurality of adhesive parts 714. Each of the plurality of adhesive portions 714 extends in the widthwise direction W and reaches both ends of the temperature-sensitive sheet 701 in the widthwise direction W. The plurality of adhesive portions 714 are arranged at predetermined intervals in the longitudinal direction L. The peeling sheet 715 has the same shape as the outer edge of the liquid impermeable sheet 711, and is arranged to cover the entire adhesive portion 713 (a plurality of adhesive portion portions 714).

As shown in FIG. 18, in a state where the temperature-sensitive sheet 701 is folded in half, it is wrapped by the packaging sheet 705 to form a package 703. Specifically, the individual packaging body 703 is a temperature-sensitive sheet 701 in which the skin contact surface 731 of the liquid-permeable sheet 407 is folded inwardly by sandwiching two packaging sheets 705 with the folding axis F ₆ as the base axis. It is formed by providing a sealing part 735 on the periphery of two packaging sheets 705.

When the user uses the temperature-sensitive sheet 701, the individual package body 703 is unsealed from the notch 737 of the individual package body 703, the temperature-sensitive sheet 701 is taken out from the individual package body 703, and the peeling sheet 715 is peeled from the temperature-sensitive sheet 701. Next, the wearer fixes the adhesive portion 713 of the temperature-sensitive sheet 701 to the clothing 721, specifically the inner surface of the underwear, and uses the skin contact surface 731 of the temperature-sensitive sheet 701 in contact with the wearer’s skin. Temperature-sensitive sheet 701.

Like the sanitary napkin 401 according to the first embodiment, the fiber density of the nonwoven fabric constituting the temperature-sensitive body 741 (second sheet 709) is higher than the fiber density of the nonwoven fabric constituting the liquid-permeable sheet 707.

In a state where no force is applied, the temperature-sensitive solution containing water as a hydrophilic solvent is easily held by the temperature-sensitive body 741 (second sheet 709) having a high fiber density. When the wearer pushes the temperature sensitive sheet 701 (temperature sensitive body 741) in the thickness direction T, the temperature sensitive solution moves to the liquid permeable sheet 707, and then moves to the wearer's skin. As a result, the temperature sensitive agent contact part of the temperature sensitive agent (temperature sensitive body 741) of the wearer's skin easily feels a warm feeling.

Next, if the wearer does not push the temperature-sensitive sheet 701 (temperature-sensitive body 741) in the thickness direction T, the temperature-sensitive solution will easily return from the liquid-permeable sheet 707 with low fiber density to the temperature-sensitive body 741 with high fiber density. (Second sheet 709). As a result, the warming agent contact part of the wearer's skin is less likely to be excessively warm.

In the temperature-sensitive article of the present invention (Invention B), the temperature-sensitive solution contains a temperature-sensitive agent that activates TRP ion channels, and a solvent. Examples of the above-mentioned temperature-sensitive agent and solvent include the high-temperature-sensitive agent and the solvent of Invention A, respectively.

The temperature-sensitive solution desirably contains 0.0001 to 5.0% by mass of the temperature-sensitive agent, more desirably contains 0.0005-3.0% by mass of the above-mentioned temperature-sensitive agent, and still more desirably contains 0.1-1.0% by mass of the temperature-sensitive agent, and It is most desirable to contain 0.3 to 0.7% by mass of the aforementioned temperature-sensitive agent. From the point of view of temperature effect.

In the temperature-sensitive article of the present invention (Invention B), the temperature-sensitive solution, in addition to the above-mentioned temperature-sensitive agent and solvent, may contain at least one of the following types within a range that does not hinder the effect of imparting a warm feeling to the wearer Other ingredients.

The at least one other component mentioned above includes, for example, a cooling agent. Examples of the aforementioned cooling sensation agent include the low-temperature sensation imparting agent of Invention A. The inventors of the present invention found that in addition to the temperature-sensing agent that activates TRP ion channels, when the temperature-sensing solution further contains a cooling agent that activates TRP ion channels, the wearer will contact the temperature-sensitive solution during the above-mentioned warming time. The part and its periphery are not easy to feel itching. The ideal addition amount of the cooling sensation agent and the ratio of the temperature sensation agent and the cooling sensation agent are as described in Invention A, so the description is omitted.

As for the at least one of the above-mentioned other components other than the cooling agent, those exemplified in relation to Invention A may be cited, and the description will be omitted.

The temperature-sensitive article of the present invention (invention B), in particular, the temperature-sensitive solution described above, like the temperature-sensitive article of the invention A, does not contain an exothermic agent. As for the above-mentioned exothermic agent, those exemplified in Invention A can be cited. In the temperature-sensitive article of the present invention (invention B), the liquid-permeable sheet is not particularly limited as long as it has liquid-permeability. Examples of the invention A can be cited.

The temperature-sensitive article of the present invention (invention B) can have elastic strain properties like the temperature-sensitive article of the invention A. Since the method of imparting elastic strain properties to the temperature-sensitive article of the present invention (invention B) is the same as that described in the invention A, these are cited, and detailed descriptions are omitted.

In the temperature-sensitive article of the present invention (invention B), the liquid-permeable sheet is the same as the temperature-sensitive article of the invention A, and may include heat-generating materials, heat-insulating materials, and hygroscopic materials, and any combination of these The selected material of the formed group (hereinbelow, it may only be referred to as "functional material"). Since the above-mentioned functional materials are the same as those listed in Invention A, the description is omitted.

In the temperature-sensitive article of the present invention (invention B), as for the liquid-impermeable sheet, the same ones as those listed in the invention A can be cited, so the description is omitted.

The temperature-sensitive article of the present invention (Invention B) may include an additional member between the liquid-permeable sheet and the liquid-impermeable sheet, that is, for example, may include an auxiliary sheet, an absorber, and the like. The above-mentioned auxiliary sheet may be the same as the liquid-permeable sheet.

In the temperature-sensitive article of the present invention (Invention B), when the solvent of the temperature-sensitive solution is a lipophilic solvent, the second sheet is a fabric formed of synthetic fibers, such as non-woven fabrics, woven fabrics, knitted fabrics, etc., for example, synthetic fibers The resulting non-woven fabric. In addition, when the second sheet constitutes a temperature-sensitive body, when the solvent of the temperature-sensitive solution is a hydrophilic solvent, the second sheet may be a fabric formed of cellulose fibers, for example, non-woven fabric, woven fabric, knitted fabric, etc. Tissue paper, air-forming pulp, etc. can be composed of pulp fibers.

The temperature-sensitive article of the present invention (Invention B) may have hydrophilicity or lipophilicity from the viewpoint that the second sheet improves the elastic strain of the temperature-sensitive article. The hydrophilic second sheet is treated with a hydrophilizing agent known in the technical field (for example, applying a hydrophilizing agent, mixing in a hydrophilizing agent) to form a material constituting the second sheet. Examples of the above-mentioned hydrophilizing agent include those exemplified in the description of the liquid-permeable sheet.

For the second sheet with lipophilicity, it is formed by treating with a lipophilic agent known in the technical field (for example, applying lipophilic agent, mixing in lipophilic agent) to form the material constituting the second sheet . As the above-mentioned lipophilic agent, the lipophilic agent exemplified in Invention A can be cited.

The temperature-sensitive article of the present invention (Invention B), from the viewpoint that the second sheet improves the elastic strain of the temperature-sensitive article, it is desirable to have a fiber density of 0.010 to 0.500 g/cm ³ , more preferably 0.020 to 0.300 The fiber density of g/cm ³ is more preferably 0.030 to 0.100 g/cm ³ . The second sheet described above desirably has a basis weight of 10 to 200 g/m ² , and more desirably has a basis weight of 15 to 150 g/m ² .

In the temperature-sensitive article of the present invention (Invention B), when the liquid-permeable sheet is a fabric, the liquid-permeable sheet preferably has a small fiber density of 0.005 g/cm ³ or more than the second sheet, and more preferably has a fiber density of 0.010 The fiber density of a small difference of g/cm ³ or more, and more preferably a small fiber density of 0.015 g/cm ³ or more, and a small fiber having a difference of 0.020 g/cm ³ or more. The density is more preferably a small fiber density with a difference of 0.025 g/cm ³ or more, and even more preferably a small fiber density with a difference of 0.030 g/cm ³ or more. According to this, the temperature-sensitive solution is easily held by the second sheet with high fiber density in the state without applying force. If the wearer pushes in the temperature-sensitive article, the temperature-sensitive solution moves to the liquid-permeable sheet. , Easy to move to the skin of the wearer.

Furthermore, in the temperature-sensitive article of the present invention (Invention B), when the liquid-permeable sheet is a woven fabric, the liquid-permeable sheet preferably has a small fiber density of 0.440 g/cm ³ or less than the second sheet, and more preferably has 0.300 The fiber density of a small difference of g/cm ³ or less is more preferably a fiber density of a small difference of 0.250 g/cm ³ or less, and a fiber having a difference of 0.200 g/cm ³ or less is more desirable. The density is more preferably a fiber density with a small difference of 0.150 g/cm ³ or less, and even more preferably a fiber density with a small difference of 0.100 g/cm ³ or less, and still more preferably 0.060 a small difference in fiber density g / cm ³ or less, more preferably is again more fiber density having small difference of ³ or less 0.045g / cm, and more preferably more then more others having 0.040g / cm ³ or less The fiber density is poor, and it is more desirable to have a poor fiber density of 0.035 g/cm ³ or less. According to this, when the wearer pushes in the temperature-sensitive article, the temperature-sensitive solution moves to the liquid-permeable sheet and then easily moves to the wearer's skin.

The fiber density of the liquid-permeable sheet and the second sheet were measured in the following manner. (1) Prepare FS-60DS manufactured by Daiei Scientific Precision Manufacturing Co., Ltd. in a constant temperature and humidity room with temperature: 20±5°C and humidity: 65±5%RH [measurement surface: 44mm (diameter), measurement pressure: 3g /cm ² ], and at least one of the liquid-permeable sheet and the second sheet (hereinafter referred to as "sample") is allowed to stand for 24 hours in the constant temperature and humidity chamber. (2) For the above-mentioned sample, 10 pieces of 0.1m×0.1m size sample pieces were taken. (3) Measure the mass of each sample piece, and then divide the mass (g) of each sample piece by the area (m ² ) of each sample piece to calculate the basis weight of each sample piece: bw (g/m ² ).

(4) Use FS-60DS to apply pressure to 5 different parts of each sample piece, measure the thickness of each part after 10 seconds of pressing, and use the average of the 5 measured values as the thickness of each sample piece: t(m). (5) In each sample piece, by dividing the basis weight of the sample piece: bw(g/m ² ) by the thickness of the sample piece: t(m), the adjustment unit is used to calculate the fiber density of each sample piece: fd(g/ cm ³ ). (6) Calculate the fiber density of a total of 10 sample pieces: the average value of fd (g/cm ³ ), and use the average value as the fiber density: FD (g/cm ³ ).

In the temperature-sensitive article of the present invention (Invention B), when the solvent of the temperature-sensitive solution is a lipophilic solvent, it is preferable that the lipophilicity of the second sheet is higher than that of the liquid-permeable sheet. From the viewpoint of improving the elasticity of temperature-sensitive articles. Furthermore, in the temperature-sensitive article of the present invention (Invention B), when the solvent of the temperature-sensitive solution is a hydrophilic solvent, the hydrophilicity of the second sheet is preferably higher than that of the liquid-permeable sheet. From the viewpoint of improving the elasticity of temperature-sensitive articles. The degree of lipophilicity and the degree of hydrophilicity are as described in Invention A.

Regarding the above-mentioned absorbent body, the same as those listed in Invention A can be cited, so the description is omitted. The temperature-sensitive article provided with the above-mentioned absorber includes absorbent articles. The temperature-sensitive article of the present invention (invention B) may be provided with an adhesive part for fixing the temperature-sensitive article to clothing, the skin of the wearer, etc., as the adhesive part is the same as those listed in Invention A The same is true, so the description is omitted.

The temperature-sensitive article of the present invention (Invention B) is the same as the temperature-sensitive article of Invention A. It is ideally packaged by a packaging sheet before use. As for the packaging sheet, the same as those listed in Invention A can be mentioned. Therefore, the description is omitted.

The temperature-sensitive article of the present invention (Invention B) is not particularly limited as long as it contains a temperature-sensitive solution, and examples thereof include absorbent articles and temperature-sensitive sheets. Regarding the above-mentioned absorbent article, since there is no particular limitation, the same ones as those listed in Invention A can be cited, so the description is omitted.

The above-mentioned absorbent article contains a temperature-sensitive body of a temperature-sensitive solution, which can be arranged in the planar direction of the absorbent article at a position that does not overlap with the absorber in the thickness direction of the absorbent article; it overlaps with the absorber in the thickness direction of the absorbent article The position; the position of any combination of such. The above-mentioned absorbent article contains a temperature-sensitive body of a temperature-sensitive solution, and can be arranged on the liquid-permeable sheet, the above-mentioned second sheet, the absorbent body, any combination of these, and the like in the thickness direction of the absorbent article. The above-mentioned absorbent article includes a liquid-permeable sheet, a liquid-impermeable sheet, and an absorber between the liquid-permeable sheet and the liquid-impermeable sheet.

In addition, the temperature-sensitive solution may move on or inside the material constituting the absorbent article, and a part of the material adjacent to the material on which the temperature-sensitive solution is arranged may form a temperature-sensitive area. For example, when the second sheet is provided with a temperature-sensitive solution, when the liquid-permeable sheet is made of fabric, a part of the temperature-sensitive solution moves to the area on the second sheet side of the adjacent liquid-permeable sheet, and mainly moves to absorb In the thickness direction of the sexual article, the area on the second sheet side of the liquid-permeable sheet may form a temperature-sensitive area. Furthermore, when the liquid-permeable sheet is provided with a temperature-sensitive solution, a part of the temperature-sensitive solution is mainly in the area on the liquid-permeable sheet side of the adjacent second sheet or the area on the liquid-permeable sheet side of the adjacent absorbent body. Moving to the thickness direction of the absorbent article, the area on the liquid-permeable sheet side of the second sheet or the area on the liquid-permeable sheet side of the absorbent body may form a temperature-sensitive area.

As for the above-mentioned temperature-sensitive sheet, the same as those exemplified in Invention A can be cited. In the above-mentioned temperature-sensitive sheet, the temperature-sensitive body containing the temperature-sensitive solution can be arranged on the entire surface, the center portion, the peripheral edge, and any combination of these in the planar direction of the temperature-sensitive sheet. In the above-mentioned temperature-sensitive sheet, a temperature-sensitive body containing a temperature-sensitive solution can be arranged on the liquid-permeable sheet, the above-mentioned second sheet, any combination of these, etc. in the thickness direction of the temperature-sensitive sheet. The above-mentioned temperature-sensitive sheet includes at least a liquid-impermeable sheet and the same as the liquid-permeable sheet.

In addition, the temperature-sensitive solution may move on or inside the material constituting the temperature-sensitive sheet, and a part of the material adjacent to the material on which the temperature-sensitive solution is arranged may form a temperature-sensitive area. For example, when a temperature-sensitive solution is arranged on the second sheet, when the liquid-permeable sheet is composed of a fabric, a part of the temperature-sensitive solution mainly moves to the temperature-sensitive area on the second sheet side of the adjacent liquid-permeable sheet. In the thickness direction of the sheet, the area on the second sheet side of the liquid-permeable sheet may form a temperature-sensitive area. In addition, when the liquid-permeable sheet is provided with a temperature-sensitive solution, a part of the temperature-sensitive solution mainly moves to the thickness direction of the temperature-sensitive sheet in the area on the liquid-permeable sheet side of the adjacent second sheet, and the liquid of the second sheet penetrates The area on the side of the sex sheet may form a temperature-sensitive area.

In the temperature-sensitive article of the present invention (Invention B), the thickness of the region overlapping with the temperature-sensitive solution of the temperature-sensitive article is preferably thicker than the thickness of the region not overlapping with the temperature-sensitive solution of the temperature-sensitive article. Because of this, it is easy for the installer to push into the area overlapping with the temperature-sensitive solution, thereby easily releasing the temperature-sensitive solution from the second sheet, and it is easier for the installer to control the temperature feeling. [Example]

Hereinafter, although the present invention is illustrated with examples, the present invention is not limited by these. <Invention A> [Manufacturing Example A1] As for the temperature-sensitive article, sanitary napkin No. A1 according to the first embodiment was manufactured. The liquid-permeable sheet in the absorbing body and the temperature-sensitive body is treated with the first lipophilic agent and the second sheet in the thickness direction of the sanitary napkin. Fusible fiber, basis weight: 60g/m ² , fiber density: 0.06g/cm ³ , and the other parts are treated with a hydrophilizing agent), in the high temperature feeling imparting area, the high temperature feeling imparting solution becomes The high-temperature sensation imparting agent is applied in such an amount that the basis weight of the agent becomes 1.0 g/m ² .

The entire surface of the second sheet is a hot-air non-woven fabric with lipophilicity treated with a second lipophilic agent that can impart a lower degree of lipophilicity than the first lipophilic agent used in the liquid-permeable sheet ( Constituent fiber: heat-fusible fiber, basis weight: 30g/m ² , fiber density: 0.03g/cm ³ ), in the high temperature sensation imparting area, the basis weight of the high temperature sensation imparting solution becomes the high temperature sensation imparting agent The coating is applied in an amount of 0.5 g/m ² . In addition, the temperature sensitivity imparting solution is composed of vanillyl butyl ether (10.0% by mass) as a high temperature sensitivity imparting agent and isononyl isononanoate as a lipophilic solvent. The liquid-impermeable sheet is a polyethylene film (basis weight: 24 g/m ² ).

[Manufacturing Example A2] The sanitary napkin No. A2 was manufactured in the same manner as in Manufacturing Example A1 except that the second sheet was treated with the first lipophilic agent. [Manufacturing Example A3] The hot-air nonwoven fabric constituting the second sheet was changed to the hot-air nonwoven fabric constituting the liquid-permeable sheet, and sanitary napkin No. A3 was produced in the same manner as in Production Example A1 except that it was treated with a second lipophilic agent.

[Production Example A4] As for the temperature-sensitive article, the temperature-sensitive sheet No. A1 according to the fourth embodiment was produced. The liquid-permeable sheet is a hydrophilic hot-air non-woven fabric treated with the first hydrophilizing agent (constituent fiber: heat-fusible fiber, basis weight: 60g/m ² , fiber density: 0.06g/cm ³ ). In the low-temperature feeling imparting area, the low-temperature feeling imparting solution is applied in such an amount that the basis weight of the low-temperature feeling imparting agent becomes 1.0 g/m ² .

The second sheet is made of a hydrophilic hot-air non-woven fabric treated with a second hydrophilizing agent that can impart a lower degree of hydrophilization than the first hydrophilizing agent used in the liquid-permeable sheet (component fiber: hot melt Adhesive fiber, basis weight: 60g/m ² , fiber density: 0.04g/cm ³ ), in the low temperature sensation imparting area, the low temperature sensation imparting solution is such an amount that the basis weight of the low temperature sensation imparting agent becomes 0.5 g/m ² Is coated.

The third sheet is a hydrophilized hot-air nonwoven fabric treated with a third hydrophilizing agent that can give a lower degree of hydrophilization than the second hydrophilizing agent used in the second sheet (constituent fiber: heat-fusion Fiber, basis weight: 30g/m ² , fiber density: 0.02g/cm ³ ), in the low temperature sensation imparting area, the low temperature sensation imparting solution is applied in such an amount that the basis weight of the low temperature sensation imparting agent becomes 0.25 g/m ² . In addition, the low-temperature sensation imparting solution is composed of l-menthyl glyceryl ether (10.0% by mass) as a low-temperature sensation imparting agent, a surfactant (1.2% by mass), and water as a hydrophilic solvent. The liquid-impermeable sheet is a polyethylene film (basis weight: 24 g/m ² ).

[Manufacturing Example A5] Except that the second sheet and the third sheet were treated with the first hydrophilizing agent, the temperature-sensitive sheet No. A2 was produced in the same manner as in Production Example 4. [Manufacturing Example A6] The hot-air nonwoven fabric constituting the second sheet and the third sheet was changed to the hot-air nonwoven fabric constituting the liquid-permeable sheet, and the temperature-sensitive sheet No. A3 was produced in the same manner as in Production Example A4 except that the hydrophilizing agent was not changed.

[Manufacturing Example A7] The hot-air nonwoven fabric constituting the second sheet was changed to the hot-air nonwoven fabric constituting the liquid-permeable sheet, and the sanitary napkin No. A4 for sanitary napkin No. A4 was produced in the same manner as in Production Example 1, except that it was treated with the first lipophilic agent. [Manufacturing Example A8] The hot-air nonwoven fabric constituting the second sheet and the third sheet was changed to the hot-air nonwoven fabric constituting the liquid-permeable sheet, except that the second sheet and the third sheet were treated with the first hydrophilizing agent, the same as in Production Example A4 to produce a warm feeling Sheet No.A4.

[Examples A1 to A6, and Comparative Examples A1 and A2] Let the sanitary napkins No.A1～No.A4 and the temperature sensitive sheet No.A1～No.A4 for each of the multiple subjects wear 4 levels (1: no warm feeling, 2: weak feeling) To evaluate the warming effect at the initial stage of installation (within 10 minutes after installation), then use 4 levels (1: irritation) Very high, 4: Very low irritation) to evaluate the irritation of the skin contact part of the warming agent after installation. In addition, sanitary napkins No.A1 to No.A4 are used in 4 grades (1 : I feel a strong itching that must be endured, 2: I feel a tolerable itch, 3: I feel a weak itch, 4: I don’t feel itching), to evaluate whether it is not easy to feel at the initial stage of installation (10 minutes after installation) Within) the itching. Table 1 shows the results (rounded the average value to an integer).

<Invention B> [Production Example B1] As for the temperature-sensitive article, sanitary napkin No. B1 according to the first embodiment was produced. The liquid-permeable sheet in the absorbing body and the temperature-sensitive body is treated with a lipophilic agent and the part that overlaps the second sheet in the thickness direction of the sanitary napkin, and the lipophilic hot-air non-woven fabric (constitutive fiber: thermally fused Sex fiber, basis weight: 30g/m ² , fiber density: 0.03g/cm ³ , and the other part is treated with a hydrophilizing agent), the second sheet is completely treated with a lipophilic agent It is composed of lipophilic hot-air non-woven fabric (composition fiber: heat-fusible fiber, basis weight: 60g/m ² , fiber density: 0.06 g/cm ³ ), the temperature-sensitive solution, the basis weight of the temperature-sensitive agent becomes 1.0g /m ² is coated. In addition, the temperature-sensitive solution is composed of vanillyl butyl ether (10.0% by mass) as a temperature-sensitive agent and isononyl isononanoate as a lipophilic solvent. The liquid-impermeable sheet is a polyethylene film (basis weight: 24 g/m ² ).

[Manufacturing Example B2] Except that the "hydrophilic hot-air nonwoven fabric" as the liquid-permeable sheet was changed to the "hydrophilic hot-air nonwoven fabric" treated with a hydrophilizing agent, the sanitary napkin No.B2 was produced in the same manner as in Production Example B1. .

[Production Example B3] As for the temperature-sensitive article, the temperature-sensitive sheet No. B1 according to the fourth embodiment was produced. The liquid-permeable sheet is a hot-air non-woven fabric treated with a hydrophilizing agent (composition fiber: heat-fusible fiber, basis weight: 30g/m ² , fiber density: 0.03g/cm ³ ), the second sheet is not oiled (Hydrophilizing agent or lipophilizing agent) treatment, composed of hydrophilic air-forming pulp (constituent fiber: pulp fiber, basis weight: 100g/m ² , fiber density: 0.06g/cm ³ ), a warm solution , Is coated with the temperature-sensitive agent in such an amount that the basis weight becomes 1.0g/m ² . In addition, the temperature-sensitive solution is composed of vanillyl butyl ether (0.3% by mass) as a temperature-sensitive agent, a surfactant (1.2% by mass), and water as a hydrophilic solvent. The liquid-impermeable sheet is a polyethylene film (basis weight: 24 g/m ² ).

[Manufacturing Example B4] Except that the second sheet is changed to a hot-air nonwoven fabric that has been fully treated with a lipophilic agent and has lipophilic properties (composition fiber: heat-fusible fiber, basis weight: 30g/m ² , fiber density: 0.03g/ cm ³ ), the sanitary napkin No. B3 was produced in the same manner as in Production Example B1. [Manufacturing Example B5] Except that the second sheet was changed to a hot-air non-woven fabric with lipophilicity after being fully treated with a lipophilic agent (composition fiber: heat-fusible fiber, basis weight: 30g/m ² , fiber density: 0.03g/ Except cm ³ ), the temperature-sensitive sheet No. B2 was produced in the same manner as in Production Example B3.

[Examples B1 to B3, and comparative examples B1 and B2] A plurality of subjects are equipped with sanitary napkins No.B1～No.B3, temperature sensitive sheets No.B1 and No.B2, and by pushing in these, 4 levels from 1 to 4 (1: not easy to adjust) 4. The evaluation value of 4: easy to adjust) evaluates whether the temperature sensitivity is easy to adjust. Table 2 shows the results (rounded the average value to an integer).

1: Sanitary napkins for physiological use (temperature-sensitive items)

3: Absorb the body

5: warm body

7: Liquid permeable sheet

8a: Skin contact surface

8b: Non-skin contact surface

9: Liquid impermeable sheet

11: Absorber

13: second sheet

15: shape retaining member

17: Duplicate

23: Wing

25: Sealing part

27: Embossing Department

29: Packaging flakes

31: High temperature imparting area

33: High temperature feeling imparting solution

401: Sanitary napkin for physiological use

403: Absorb the body

405: warm body

407: Liquid permeable sheet

409: Liquid impermeable sheet

411‧‧‧Absorber

413‧‧‧Second sheet

415‧‧‧shape retaining member

417‧‧‧Repetition

431‧‧‧Temperature sensing body

L‧‧‧long side direction

W‧‧‧Wide side direction

T‧‧‧Thickness direction

F ₁ ‧‧‧The first folding axis in the longitudinal direction

F ₂ ‧‧‧The second folding axis in the longitudinal direction

F ₃ ‧‧‧The 1st folding axis in the width direction

F ₄ ‧‧‧The second folding axis in the wide side direction

F ₅ ‧‧‧The third folding axis in the wide side direction

F ₆ ‧‧‧folding shaft

Fig. 1 is a plan view of a sanitary napkin 1 according to the first embodiment of the invention A. Fig. 2 is an exploded perspective view of the sanitary napkin 1. Fig. 3 is a cross-sectional view of the sanitary napkin 1 in the section III-III of Fig. 1. FIG. 4 is a diagram showing the state of the sanitary napkin 1 when it is installed. Fig. 5 is a diagram illustrating a panty-type sanitary napkin 101 according to a second embodiment of the invention A. FIG. 6 is a diagram illustrating a disposable diaper 201 according to a third embodiment of the invention A. FIG. FIG. 7 is a perspective view of an individual package body 303 of the temperature sensitive sheet of the temperature sensitive sheet 301 individually packaged according to the fourth embodiment of the invention A. FIG. 8 is a perspective view of the temperature sensitive sheet 301. FIG. 9 is an exploded perspective view of the temperature sensitive sheet 301. Fig. 10 is a cross-sectional view of the temperature-sensitive sheet 301 in the X-X cross section of Fig. 8. FIG. 11 is a diagram showing a state in which the temperature-sensitive sheet 301 is installed. Fig. 12 is a plan view of the sanitary napkin 401 according to the first embodiment of the invention B. Fig. 13 is an exploded perspective view of the sanitary napkin 401 according to the first embodiment of the invention B. Fig. 14 is a cross-sectional view of the sanitary napkin 401 in the XIV-XIV cross section of Fig. 12. FIG. 15 is a diagram showing the installed state of the sanitary napkin 401 according to the first embodiment of the invention B. FIG. Fig. 16 is a diagram illustrating a panty-type sanitary napkin 501 according to a second embodiment of the invention B. Fig. 17 is a diagram illustrating a disposable diaper 601 according to a third embodiment of the invention B. FIG. 18 is a perspective view of the individual package body 703 of the temperature-sensitive sheet of the temperature-sensitive sheet 701 individually packaged according to the fourth embodiment of the invention B. Fig. 19 is a perspective view of a temperature-sensitive sheet 701 according to a fourth embodiment of the invention B. Fig. 20 is an exploded perspective view of a temperature-sensitive sheet 701 according to a fourth embodiment of Invention B. FIG. 21 is a diagram showing the installed state of the temperature sensitive sheet 701 according to the fourth embodiment of the invention B. FIG.

1‧‧‧Sanitary napkins for physiological use

3‧‧‧Absorb the body

5‧‧‧Temperature body

11‧‧‧Absorber

13‧‧‧Second sheet

15‧‧‧Shape maintaining member

17‧‧‧Repetition

23‧‧‧Wing

25‧‧‧Sealing part

27‧‧‧Embossing Department

29‧‧‧Packing sheet

31‧‧‧High temperature imparting area

33‧‧‧High temperature sensation imparting solution

F ₁ ‧‧‧The first folding axis in the longitudinal direction

F ₂ ‧‧‧The second folding axis in the longitudinal direction

F ₃ ‧‧‧The 1st folding axis in the width direction

F ₄ ‧‧‧The second folding axis in the wide side direction

F ₅ ‧‧‧The third folding axis in the wide side direction

Claims (22)

A temperature-sensitive article comprising: a liquid-permeable sheet, a liquid-impermeable sheet, and a second sheet between the liquid-permeable sheet and the liquid-impermeable sheet. The temperature-sensitive article is characterized by: the second The sheet is composed of fabric and contains a temperature-sensitive solution containing a temperature-sensitive agent that activates TRP ion channels and a solvent. The aforementioned temperature-sensitive articles are made from sanitary napkins, sanitary pads, and disposables. Choose from a group of diapers and underwear-type sanitary napkins. Such as the temperature-sensitive article described in item 1 of the scope of patent application, wherein the aforementioned solvent is a lipophilic solvent. The temperature-sensitive article described in item 2 of the scope of patent application, wherein the lipophilicity of the fabric of the second sheet is higher than that of the liquid-permeable sheet. The temperature-sensitive article described in any one of items 1 to 3 in the scope of patent application, wherein the liquid-permeable sheet is composed of a fabric, and the fiber density of the fabric of the second sheet is higher than that of the fabric of the liquid-permeable sheet The fiber density is higher. The temperature-sensitive article described in claim 1, wherein the thickness of the liquid-permeable sheet under a load of 30 g/cm ² is 70% or less of the thickness under a load of 3 g/cm ² . The temperature-sensitive article described in item 1 or item 2 of the scope of patent application, wherein the liquid-permeable sheet is composed of an apertured film. The temperature-sensitive article described in item 1 of the scope of the patent application, wherein in the thickness direction of the temperature-sensitive article, the thickness of the region overlapping with the second sheet of the temperature-sensitive article is lower than that of the second sheet without the temperature-sensitive article The thickness of the repeated area is thicker. The temperature-sensitive article described in claim 1, wherein the fabric constituting the second sheet is selected from non-woven fabrics, woven fabrics, knitted fabrics, and combinations thereof. The temperature-sensitive article described in claim 1, wherein the liquid impermeable sheet contains an impermeable film. A temperature-sensitive article comprising: a liquid-permeable sheet, which has a skin-contacting surface and a non-skin-contacting surface, and is composed of a fabric, a liquid-impermeable sheet, and a second sheet, which is the same as the aforementioned liquid-permeable sheet The non-skin contacting surface is adjacent to the non-skin contact surface and is composed of a fabric and has a thickness direction. The temperature-sensitive article is characterized in that the temperature-sensitive article is provided with the liquid-permeable sheet and the second sheet containing a temperature-sensitive article. The temperature sensation of the solution imparts the area, and the temperature sensation imparts The pre-solution contains a high temperature sensation imparting agent for activating TRP ion channels and a solvent. In the temperature sensation imparting area, the solution density of the temperature sensation imparting solution existing in the liquid-permeable sheet is higher than that of the second sheet. The warm feeling imparting solution is higher. The aforementioned warm feeling articles are selected from the group consisting of sanitary napkins, sanitary pads, disposable diapers, and underwear-type sanitary napkins. The temperature-sensitive article according to claim 10, wherein the solvent is a lipophilic solvent, and the lipophilicity of the fabric constituting the liquid-permeable sheet is higher than the lipophilicity of the fabric constituting the second sheet higher. The temperature-sensitive article according to claim 10, wherein the solvent is a hydrophilic solvent, and the hydrophilicity of the fabric constituting the liquid-permeable sheet is higher than that of the fabric constituting the second sheet higher. The temperature-sensitive article described in any one of items 10 to 12 of the scope of patent application, wherein the temperature-sensitive article and the temperature-sensitive imparting region overlap in the thickness direction in the range where the third sheet made of fabric is further provided, The third sheet is adjacent to the surface of the second sheet on the opposite side of the liquid-permeable sheet, and constitutes the temperature-imparting area. In the temperature-imparting area, there is the solution density of the temperature-imparting solution of the third sheet More The solution density of the aforementioned temperature-imparting solution in which the aforementioned second sheet is present is lower. The temperature-sensitive article according to claim 13, wherein, in the temperature-sensitive imparting area, the fiber density of the fabric constituting the third sheet is lower than the fiber density of the fabric constituting the second sheet. The temperature-sensitive article described in item 13 of the scope of application, wherein the solvent is a lipophilic solvent, and the lipophilicity of the fabric constituting the liquid-permeable sheet is higher than that of the fabric constituting the second sheet The lipophilicity of the fabric constituting the third sheet is lower than the lipophilicity of the fabric constituting the second sheet. The temperature-sensitive article described in claim 10, wherein the thickness retention ratio of the liquid-permeable sheet relative to the thickness under a load of 3 g/cm ² and the thickness under a load of 30 g/cm ² is higher than the second above The retention rate of the above thickness of the sheet is smaller The temperature-sensitive article described in claim 16 wherein the liquid-permeable sheet has a retention rate of the thickness of 70% or less. The temperature-sensitive article described in claim 10, wherein, in the thickness direction of the temperature-sensitive article, the thickness of the region overlapping with the temperature-sensing imparting region of the temperature-sensitive article is less than that of the temperature-sensitive article. The thickness of the area where the feeling imparting area is repeated is thicker. The temperature-sensitive article described in item 10 of the scope of patent application, wherein the high-temperature sensation imparting agent is an agent that acts on the TRPV1 receptor. Such as the temperature-sensitive article described in item 10 of the scope of patent application, wherein the aforementioned temperature-sensitive article is a heat-generating agent. The temperature-sensitive article according to claim 10, wherein the temperature-sensitive article has a longitudinal direction and a widthwise direction, and the length of the widthwise direction of the second sheet is greater than that of the second sheet The length is longer. The temperature-sensitive article described in claim 10, wherein the liquid impermeable sheet contains an impermeable film.

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