JP6765356B2 - Warm goods - Google Patents

Description

The present disclosure relates to warmth articles.

Patent Document 1 describes an absorbent article, preferably hygiene, comprising an agent capable of transmitting perception to the wearer without the need to create external conditions perceived by the wearer for the purpose of improving comfort. Disposable absorbent articles are listed.
Further, in paragraph [0040] of Patent Document 1, a warming agent is mentioned as a preferable agent, and the warming agent receives temperature without having to create a temperature change on the body surface of the wearer of the article. It is stated that the container (ie, heat) can be stimulated.

Special Table 2004-528090

As confirmed by the inventor of the present application, a warming agent as described in Patent Document 1 tends to take a longer time to feel a desired temperature (heat sensing time) than a heating agent such as iron powder. It was found that the wearer tends to feel itchy, especially in the early stages of wearing.
Therefore, it is an object of the present disclosure to provide a warming article comprising a warming solution containing a warming agent that activates a TRP channel, which makes it difficult for the wearer to feel itching in the early stage of wearing.

The inventors of the present application are warm-sensing articles including a liquid-permeable sheet and a liquid-impermeable sheet, in which the warm-sensing article activates a warming agent that activates a TRP channel and activates a TRP channel. We have found a warming article characterized by having a warming region containing a warming solution containing a cold sensation agent and a solvent.

The warming article comprising the warming solution containing the warming agent that activates the TRP channel of the present disclosure is less likely to cause itching to the wearer in the early stage of wearing.

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 diagram showing a wearing state of the sanitary napkin 1 according to the first embodiment. FIG. 4 is a diagram for explaining the shorts type sanitary napkin 101 according to the second embodiment. FIG. 5 is a diagram for explaining the disposable diaper 201 according to the third embodiment. FIG. 6 is a perspective view of the individually wrapped body 303 of the warm feeling sheet in which the warm feeling sheet 301 according to the fourth embodiment is individually wrapped. FIG. 7 is a perspective view of the warmth sheet 301 according to the fourth embodiment. FIG. 8 is an exploded perspective view of the warmth sheet 301 according to the fourth embodiment. FIG. 9 is a diagram showing a wearing state of the warmth sheet 301 according to the fourth embodiment.

Specifically, the present disclosure relates to the following aspects.
[Aspect 1]
A warm-feeling article including a liquid-permeable sheet and a liquid-impermeable sheet.
The warm sensation article is characterized by comprising a warm sensation region containing a warm sensation solution containing a warm sensation agent that activates a TRP channel, a cold sensation agent that activates a TRP channel, and a solvent.
The above warm feeling article.

As confirmed by the inventor of the present application, the warming article containing the warming agent is compared with the heating article containing a heating agent (for example, iron powder) at the initial stage of wearing, specifically, until the desired temperature is felt. (Hereinafter, the time is referred to as "heat sensing time") tends to be long, and it was found that the wearer is likely to feel itching during the heat sensing time.

Since the warming article includes a warming region containing a warming agent that activates the TRP channel, a cold feeling agent that activates the TRP channel, and a warming solution containing a solvent, the wearer can use the warming agent. Itching is hard to be felt in the part in contact with the warmth area and the surrounding part during the sensing time.
As a result of the above-mentioned warming agent activating the TRP channel of the warming agent contact portion of the wearer's skin that was in contact with the warming agent, heat is generated from the warming agent contact portion via the sympathetic nervous system. It is expected that the temperature of the part of the wearer's skin that comes into contact with the warming agent will be raised.

[Aspect 2]
The warming article according to aspect 1, wherein the warming agent is an agonist for the TRPV1 receptor and the cold feeling agent is an agonist for the TRPM8 receptor.
In the above warming article, since the warming agent is an agonist for the TRPV1 receptor and the cold sensitizer is an agonist for the TRPM8 receptor, the wearer first at the activation temperature threshold of the TRPM8 receptor during use. You can feel a temperature of 25-28 ° C, then a temperature above 43 ° C, which is the activation temperature threshold of the TRPV1 receptor. As a result, in the above-mentioned heat-sensing article, the wearer can hardly feel itching while feeling a cold feeling during the above-mentioned heat-sensing time, and can feel a sufficient warm-feeling after the above-mentioned heat-sensing time.

[Aspect 3]
The warmth article according to aspect 1 or 2, wherein the solvent is a lipophilic solvent.
As confirmed by the inventor of the present application, when the solvent constituting the warm sensation solution is a lipophilic solvent, the above-mentioned thermal temperature is compared with the case where the solvent constituting the warm sensation solution is a hydrophilic solvent, for example, water. It was found that the sensing time tended to be long, and that the long heat sensing time made it easy to feel itching.
Since the warming article includes a warming region containing a warming agent and a warming solution containing a predetermined cooling agent, the wearer is less likely to feel itching during the thermal sensing time. Further, when the warming article is an absorbent article provided with an absorber, since the solvent is a lipophilic solvent, the warming solution in the warming region is difficult to move to the absorber, and the wearer The warming efficiency of the warming solution that should give warmth is unlikely to decrease.

[Aspect 4]
The warming article according to any one of aspects 1 to 3, wherein the warming solution contains the warming agent and the cold feeling agent in a mass ratio of 20: 1 to 1:10.
In the above-mentioned warm-sensing article, since the warm-sensing solution contains a warming agent and a cold-sensing agent in a predetermined ratio, the wearer is less likely to feel itching during the heat-sensing time, and is less likely to feel cold and warm. Cheap.

[Aspect 5]
The warmth article is an absorbent article further comprising an absorber between the liquid permeable sheet and the liquid impermeable sheet and having a thickness direction and a width direction, and the warmth region is the absorber and the absorber. The warmth article according to any one of aspects 1 to 4, which is arranged at a position where it does not overlap in the thickness direction.

When the warming agent is placed at a position where the absorber and the warming article (absorbable article) do not overlap in the thickness direction, that is, in the peripheral portion of the cloaca contact area, the warming agent is placed in the excretion port. The wearer is more likely to experience itching due to the heat sensing time than when placed in the cloaca. The warmth article (absorbent article) is provided with a warmth area at a position that does not overlap with the absorber in the thickness direction, so that the wearer's lower abdomen (or the uterus if the wearer is a woman). It is possible to give a feeling of warmth to the uterus, and it is difficult for the wearer to feel itching during the above-mentioned heat sensing time.

[Aspect 6]
The warmth article according to aspect 5, wherein the warmth region is arranged at a position corresponding to the lower abdomen of the wearer and in a region wider in the width direction than the absorber.
In the above-mentioned warm-feeling article, since the warm-feeling region is arranged in a predetermined range, the portion corresponding to the wearer's uterus can be warmed, but the wearer is less likely to feel itching.

[Aspect 7]
The warm feeling article is folded in the longitudinal direction by the width direction folding shaft extending in the width direction, and the width direction folding shaft is the warm feeling region and the warm feeling region in the unfolded state of the warm feeling article. The warmth article according to aspect 6, which is arranged so as to overlap in the thickness direction.

In the warm feeling article, the width direction folding shaft is arranged so as to overlap the warm feeling region in the thickness direction in the unfolded state of the warm feeling article. The material density of the material (liquid permeable sheet, warm solution holding sheet, etc.) in the width direction folding axis overlapping part that overlaps with the width direction folding axis in the warm feeling region is the width direction folding axis in the warm feeling region. Since the density is higher than the material density of the non-overlapping part of the widthwise folding axis that does not overlap with It tends to be larger than the amount of sensitive solution (basis weight).

Therefore, in the above-mentioned warm-sensing article, the overlapping portion of the fold axis in the width direction of the warm-sensing region is the pelvic lymph node (intestinal lymph node, closed node, external intestinal bone segment, anterior sacral segment, general intestinal segment, basal ligament segment, sacral segment). , Upper inguinal segment, para-aortic segment, etc.), inguinal lymph node (superficial inguinal segment, deep inguinal segment, etc.) can be given a feeling of warmth, and their temperature can be raised to give them a massage effect. There is expected.

[Aspect 8]
The warmth article is folded in the width direction by a pair of longitudinal folding shafts extending in the longitudinal direction, and the pair of longitudinal folding shafts absorb the warmth article in the unfolded state. The warmth article according to aspect 6 or 7, which is arranged so as to overlap the warmth region outside the body in the width direction and in the thickness direction.

In the warmth article, the pair of longitudinal folding shafts are arranged so as to overlap the warmth area in the thickness direction in the unfolded state of the warmth article. The material density of the material (liquid permeable sheet, warm solution holding sheet, etc.) of the longitudinal folding axis overlapping portion, which is the portion overlapping with each of the pair of longitudinal folding axes in the warming region, is that of the warming region. Since the material density is higher than that of the non-overlapping portion of the longitudinal folding shaft that does not overlap with the pair of longitudinal folding shafts, the amount of warming solution (basis weight) of the overlapping portion of the longitudinal folding shaft is increased in the longitudinal folding direction. It tends to be larger than the amount of warming solution (basis weight) in the non-axis overlapping portion.

Therefore, in the above-mentioned warm-sensing article, the overlapping portion of the longitudinal folding axis of the warm-sensing region is the pelvic lymph node (intestinal lymph node, closed node, external intestinal bone segment, anterior sacral segment, general intestinal segment, basal ligament segment, sacral segment). , Upper inguinal segment, para-aortic segment, etc.), inguinal lymph nodes (superficial inguinal segment, deep inguinal segment, etc.) can be given a feeling of warmth, and their temperature is raised to give them a massage effect. There is expected.

[Aspect 9]
The warmth article according to any one of aspects 5 to 8, wherein the warmth article is selected from the group consisting of a sanitary napkin, a shorts type sanitary napkin, and a disposable diaper.
Since the warmth article is selected from the group consisting of sanitary napkins, shorts-type sanitary napkins, and disposable diapers, the warmth article exhibits absorption performance and at the time of heat sensing time of the wearer's lower abdomen. It is possible to give a warm feeling to the wearer's lower abdomen while suppressing itching.

[Aspect 10]
The warmth article according to any one of aspects 1 to 9, wherein the warmth article does not contain an exothermic agent.
Since the warmth article does not contain an exothermic agent, it is unlikely to cause low temperature burns to the wearer even when the warmth article is used for a long time.

The warmth article of the present disclosure will be described in detail below.
1 to 3 are views for explaining a sanitary napkin 1 as a warmth article according to one of the embodiments of the present disclosure (hereinafter, referred to as "first embodiment"). Hereinafter, "sanitary napkin as a warming article according to the first embodiment" may be simply referred to as "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 diagram showing a wearing state of the sanitary napkin 1.

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 is arranged in front of the absorption body 3 and the absorption body 3 in the longitudinal direction L. It is provided with a feeling body 5. The sanitary napkin 1 has a liquid permeable sheet 7 that comes into contact with the wearer's skin when worn, a liquid permeable sheet 9 that comes into contact with clothing 19 when worn, a liquid permeable sheet 7, and a liquid impermeable sheet in the absorbing body 3. It includes an absorber 11 arranged between the permeable sheets 9. Further, the sanitary napkin 1 has a liquid-permeable sheet 7 that comes into contact with the wearer's skin when worn, a liquid-impermeable sheet 9 that comes into contact with clothing 19 when worn, and a liquid-permeable sheet 7 in the warmth body 5. A warm solution holding sheet 13 and a shape holding member 15 are provided between the liquid impermeable sheet 9 and the liquid impermeable sheet 9. The shape-retaining member 15 is arranged closer to the liquid-impermeable sheet 9 than the warm solution-retaining sheet 13.

The liquid permeable sheet 7 in the absorption main body 3 and the liquid permeable sheet 7 in the warm feeling main body 5 are composed of an integral sheet made of a non-woven fabric. Further, the liquid permeable sheet 9 in the absorption main body 3 and the liquid permeable sheet 9 in the warm feeling main body 5 are also composed of an integral sheet. Further, a part of the absorber 11 in the absorption body 3 and the shape-retaining member 15 in the warmth body 5 partially overlap in the overlapping portion 17 in the thickness direction T, and the overlapping portion 17 , The absorber 11 is arranged at a position closer to the liquid permeable sheet 7 than the shape-retaining member 15.

The sanitary napkin 1 includes an adhesive portion 21 for fixing the sanitary napkin 1 to the wearer's clothes 19 in both the absorption body 3 and the warmth 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 to which peelability is imparted.

When the sanitary napkin 1 is unused, the sanitary napkin 1 extends in the longitudinal direction L along with the packaging sheet 29, the first folding axis F _{1 in the} longitudinal direction and the second folding axis F _{2 in} the longitudinal direction, and the second folding axis in the width direction W. It is folded around the 1-fold axis F ₃ , the width-direction second-fold axis F _4, and the width-direction third-fold axis F ₅ to form an individual package (not shown) of the sanitary napkin 1. The width direction first folding axis F ₃ , the width direction second folding axis F ₄ , and the width direction third folding axis F ₅ are arranged in front, the center, and the rear of the sanitary napkin 1, respectively.

Further, the first folding axis F ₃ in the width direction overlaps with the warm sensation solution holding sheet 13 (the warm sensation region 31 described later) in the thickness direction T in the unfolded state of the sanitary napkin 1 and the packaging sheet 29. Have been placed. The first folding axis F _{1 in the} longitudinal direction and the second folding axis F _{2 in} the longitudinal direction do not overlap with the absorber 11 in the thickness direction T in the unfolded state of the sanitary napkin 1 and the packaging sheet 29, but are warm solution holding sheets. It is arranged so as to overlap with 13 (warm region 31 described later) in the thickness direction T.

The individual package of the sanitary napkin 1 has the width of the sanitary napkin 1 and the packaging sheet 29 with the sanitary napkin 1 inside as the base axis with the longitudinal first folding axis F ₁ and the longitudinal second folding axis F _2. Fold in the direction W, then fold in the longitudinal direction L with the sanitary napkin 1 inside, with the width direction first folding axis F ₃ and the width direction third folding axis F ₅ as the base axes, and then the width direction second folding axis. It is formed by folding the sanitary napkin 1 in the longitudinal direction L with F ₄ as the base axis.

Further, the sanitary napkin 1 includes a pair of flap portions 23, a seal portion 25, an embossed portion 27, etc. for fixing the sanitary napkin 1 to the clothing 19, but the description is given because it is known in the art. Is omitted.

The sanitary napkin 1 is dressed so that the absorption body 3 and the warmth body 5 are in contact with the excretion port contact area (not shown) of the absorber 11 of the absorption body 3 so as to be in contact with the wearer's excretion port contact area. The warmth body 5, particularly the warmth solution holding sheet 13, is provided so as to be arranged at a position corresponding to the lower abdomen of the wearer. In other words, the distance between the excretion port contact area (not shown) of the absorber 11 of the absorption body 3 and the warmth solution holding sheet 13 of the warmth body 5 is the distance between the wearer's excretion port and the lower abdomen. It is configured to be approximately equal to the distance (distance on the skin).

The absorption body 3 has the same shape as a normal sanitary napkin. The warm sensation solution holding sheet 13 is made of a non-woven fabric, and a warm sensation solution (not shown) is coated on the whole thereof, and the whole warm sensation solution holding sheet 13 constitutes a warm sensation region 31. are doing. A part of the warm sensation solution is also transferred to the region of the liquid permeable sheet 7 on the warm sensation solution holding sheet 13 side, and the region of the liquid permeable sheet 7 on the warm sensation solution holding sheet 13 side is also warm. It constitutes a sensory region 31.
Further, the length of the warm sensation solution holding sheet 13 in the width direction W is longer than the length of the absorber 11 in the width direction W, and the warm sensation region 31 is a region wider in the width direction W than the absorber 11. It is configured to be placed in.

The warming solution contains a warming agent that activates the TRP channel, a cold feeling agent that activates the TRP channel, and a solvent. When the sanitary napkin 1 is fixed to the clothing 19 and used, the warm sensation solution contained in the warm sensation region 31 (warm sensation solution holding sheet 13) permeates the liquid permeable sheet 7 and comes into contact with the wearer's skin. However, the TRP channel of the warming agent contact portion of the wearer's skin that is in contact with the warming agent can be efficiently activated, and the warmth can be efficiently imparted to the wearer's lower abdomen.

By imparting a warm sensation to the wearer's lower abdomen, the TRP channel of the warming agent contact portion of the skin of the wearer's lower abdomen that was in contact with the warming agent is activated, and as a result, via the sympathetic nervous system. As a result, heat is generated from the warming agent contact area, which is expected to raise the temperature of the warming agent contact area on the wearer's skin, which in turn warms the area near the wearer's uterus and causes menstrual pain in the wearer. Expected to ease.
In addition, it is expected to reduce the wearer's premenstrual syndrome (Premenstrual Syndrome), poor circulation, menopausal disorder, etc. by warming the part close to the wearer's uterus.

The inventor of the present application tends to have a longer time until a desired temperature is felt (heat sensing time) in a warming article containing a warming agent than in a heating article containing a heating agent (for example, iron powder). It was found that the wearer was likely to feel itching during the heat sensing time.
Since the sanitary napkin 1 contains both a warming agent that activates the TRP channel and a cold feeling agent that activates the TRP channel, the cold feeling agent gives the wearer a cold feeling during the above heat sensing time. Therefore, it is difficult for the wearer to remember itching.

Further, the first folding axis F ₃ in the width direction, the first folding axis F _{1 in the} longitudinal direction, and the second folding axis F _{2 in} the longitudinal direction are in the warm feeling region 31 (in the unfolded state of the sanitary napkin 1 and the packaging sheet 29). Since it is arranged so as to overlap with the warming solution holding sheet 13) in the thickness direction T, the wearer's pelvic lymph nodes (intestinal inguinal, closed, external intestinal, anterior sacral, and general intestinal). , The basal ligament segment, sacral segment, superior inguinal segment, para-aortic segment, etc.), inguinal lymph node (superficial inguinal segment, deep inguinal segment, etc.) can be given a warmer feeling.

FIG. 4 is a diagram for explaining a shorts-type sanitary napkin 101 as a warmth article according to another embodiment of the present disclosure (hereinafter, referred to as “second embodiment”), and is a diagram showing a wearing state. is there. Hereinafter, "shorts-type sanitary napkin as a warmth article according to the second embodiment" may be simply referred to as "shorts-type sanitary napkin according to the second embodiment".

The shorts-type sanitary napkin 101 according to the second embodiment is composed of a shorts portion 103 and an absorbent article portion 105 arranged on the inner surface of the shorts portion 103. In the absorbent body 107, the absorbent article portion 105 includes a liquid permeable sheet (not shown) that comes into contact with the wearer's skin when worn, and a liquid permeable sheet (not shown) that comes into contact with the shorts portion 103. It comprises an absorber 111 arranged between them. Further, in the warmth body 109, the absorbent article portion 105 has a liquid permeable sheet (not shown) that comes into contact with the wearer's skin when worn and a liquid permeable sheet (not shown) that comes into contact with the shorts portion 103. ), And a warming solution holding sheet 113 and a shape holding member 115 arranged between them.

The liquid permeable sheet (not shown) in the absorption main body 107 and the liquid permeable sheet (not shown) in the warm feeling main body 109 are composed of an integral sheet made of a non-woven fabric. Further, the liquid permeable sheet (not shown) in the absorption main body 107 and the liquid permeable sheet (not shown) in the warm feeling main body 109 are also composed of an integral sheet.

The warm sensation solution holding sheet 113 of the warm sensation main body 109 is made of a non-woven fabric like the warm sensation solution holding sheet 13 in the first embodiment. The warm sensation solution holding sheet 113 is entirely coated with a warm sensation solution (not shown) containing a warm sensation agent that activates the TRP channel, a cold sensation agent that activates the TRP channel, and a solvent. The entire warming solution holding sheet 113 constitutes the warming region 117. A part of the warm sensation solution is also transferred to the region on the warm sensation solution holding sheet 113 side of the liquid permeable sheet (not shown), and the warm sensation solution holding of the liquid permeable sheet (not shown). The region on the sheet 113 side also constitutes the warmth region 117.

When the shorts type sanitary napkin 101 is used, the warm sensation solution contained in the warm sensation region 117 (warm sensation solution holding sheet 113) permeates through the liquid permeable sheet (not shown) and comes into contact with the wearer's skin. However, the TRP channel of the warming agent contact portion of the wearer's skin that is in contact with the warming agent can be efficiently activated, and the warmth can be efficiently imparted to the wearer's lower abdomen.

By imparting a warm sensation to the wearer's lower abdomen, the TRP channel of the warming agent contact portion of the skin of the wearer's lower abdomen that was in contact with the warming agent is activated, and as a result, via the sympathetic nervous system. As a result, heat is generated from the warming agent contact area, which is expected to raise the temperature of the warming agent contact area on the wearer's skin, which in turn warms the area near the wearer's uterus and causes menstrual pain in the wearer. Expected to ease. In addition, it is expected that the wearer's premenstrual syndrome (Premenstrual Syndrome), poor circulation, menopause, etc. will be alleviated.

FIG. 5 is a diagram for explaining a disposable diaper 201 for adults as a warmth article according to still another embodiment of the present disclosure (hereinafter, referred to as “third embodiment”), and shows a wearing state. It is a figure. Hereinafter, "disposable diaper as a warmth article according to the third embodiment" may be simply referred to as "disposable diaper according to the third embodiment".

The disposable diaper 201 according to the third embodiment is arranged between the liquid permeable sheet 203, the liquid permeable sheet 205, and the liquid permeable sheet 203 and the liquid permeable sheet 205, which are in contact with the wearer's skin. It includes an absorber 207 and a warming solution holding sheet 209 arranged in front of the absorber 207 and between the liquid permeable sheet 203 and the liquid impermeable sheet 205.

The warming solution holding sheet 209 is arranged so as to be arranged at a position corresponding to the lower abdomen of the wearer when the disposable diaper 201 is worn.
The warm sensation solution holding sheet 209 is made of a non-woven fabric, and a warm sensation solution (not shown) is coated on the whole thereof, and the whole warm sensation solution holding sheet 209 constitutes the warm sensation region 211. are doing. A part of the warm sensation solution is also transferred to the region of the liquid permeable sheet 203 on the warm sensation solution holding sheet 209 side, and the region of the liquid permeable sheet 203 on the warm sensation solution holding sheet 209 side is also warm. It constitutes the sensory region 211.

The warming solution contains a warming agent that activates the TRP channel, a cold feeling agent that activates the TRP channel, and a solvent. When the wearer wears the disposable diaper 201, the warmth solution contained in the warmth solution holding sheet 209 permeates through the liquid permeable sheet 203 and comes into contact with the wearer's skin to warm the wearer's skin. It is possible to efficiently activate the TRP channel of the warming agent contact portion with which the sensitive agent is in contact, and efficiently impart a warm feeling to the lower abdomen of the wearer.

By imparting a feeling of warmth to the wearer's lower abdomen, the TRP channel of the part of the skin of the wearer's lower abdomen that was in contact with the warming agent is activated, and as a result, through the sympathetic nervous system. Therefore, it is expected that heat is generated from the warming agent contacting portion and the temperature of the warming agent contacting portion of the wearer's skin is raised.

As a result, when the wearer of the disposable diaper 201 is a woman, (i) prostaglandin, which is a cause of menstrual pain, is discharged, muscles such as uterine muscles are relaxed, and menstrual pain is relieved. It is expected that ii) promotes blood circulation, promotes lymphatic flow, discharges waste products, improves sensitivity to cold, burns fat, and (iii) improves immunity.
If the wearer of disposable diaper 201 is male, (i) excrete prostaglandins, relax muscles and relieve pain, (ii) promote blood circulation, promote lymphatic flow, and obsolete. It is expected to excrete substances, improve sensitivity to cold, burn fat, and (iii) improve immunity.

6 to 9 are views for explaining a warmth sheet 301 as a warmth article according to still another embodiment of the present disclosure (hereinafter, referred to as “fourth embodiment”). Hereinafter, the "warm feeling sheet as a warm feeling article according to the fourth embodiment" may be simply referred to as a "warm feeling sheet according to the fourth embodiment". Specifically, FIG. 6 is a perspective view of the individually wrapped body 303 of the warm feeling sheet in which the warm feeling sheet 301 according to the fourth embodiment is individually wrapped. FIG. 7 is a perspective view of the warmth sheet 301 according to the fourth embodiment. FIG. 8 is an exploded perspective view of the warmth sheet 301 according to the fourth embodiment. FIG. 9 is a diagram showing a wearing state of the warmth sheet 301 according to the fourth embodiment. Hereinafter, the "individual package of the warmth sheet" may be simply referred to as the "individual package".

The warmth sheet 301 according to the fourth embodiment includes a liquid-permeable sheet 307 that comes into contact with the wearer's skin, a warmth solution holding sheet 309, a liquid-impermeable sheet 311 that comes into contact with clothing, and a liquid-impermeable sheet. An adhesive portion 313 for attaching the liquid-impermeable sheet 311 fixed to 311 to the clothing 321 and a release sheet 315 for temporarily fixing the adhesive portion 313 are provided in this order, and the longitudinal direction L orthogonal to each other is provided. Has a width direction W and a thickness direction T. Further, the liquid permeable sheet 307 has a skin contact surface 331 and a non-skin contact surface 333.
The warming solution holding sheet 309 is composed of a non-woven fabric, and the warming agent containing a warming agent that activates the TRP channel, a cold feeling agent that activates the TRP channel, and water as a hydrophilic solvent is contained therein. A sensation solution (not shown) is applied, and the entire warm sensation solution holding sheet 309 constitutes the warm sensation region 341. A part of the warm sensation solution is also transferred to the region of the liquid permeable sheet 307 on the warm sensation solution holding sheet 309 side, and the region of the liquid permeable sheet 307 on the warm sensation solution holding sheet 309 side is also warm. It constitutes the sensory region 341.

The warmth sheet 301 includes a folding axis F ₆ extending in parallel with the width direction W at the center of the longitudinal direction L. In the individual package 303, the warmth sheet 301 is folded with the folding shaft F ₆ as the base axis and the skin contact surface 331 of the liquid permeable sheet 307 inside, and is packaged in the packaging sheet 305.

The adhesive portion 313 is composed of a plurality of adhesive portion portions 314. Each of the plurality of adhesive portion portions 314 extends in the width direction W and reaches both ends of the warmth sheet 301 in the width direction W. The plurality of adhesive portion portions 314 are arranged at predetermined intervals in the longitudinal direction L.
The release sheet 315 has the same outer edge shape as the liquid impermeable sheet 311 and is arranged so as to cover the entire adhesive portion 313 (plural adhesive portion 314).

As shown in FIG. 6, the warmth sheet 301 is wrapped in the packaging sheet 305 in a state of being folded in half, and the individual packaging body 303 is formed. Specifically, the individual packaging body 303 is a warm feeling sheet 301 folded in half with the skin contact surface 331 of the liquid permeable sheet 7 as the base axis and the folding shaft F ₆ as the base axis, and the two packaging sheets 305. It is formed by sandwiching the two packaging sheets 305 and providing a seal portion 335 on the peripheral edge of the two packaging sheets 305.

When using the warm feeling sheet 301, the wearer opens the individual packaging body 303 from the notch 337 of the individual packaging body 303, takes out the warm feeling sheet 301 from the individual packaging body 303, and peels off the warm feeling sheet 301. Peel off 315. Next, the wearer fixes the adhesive portion 313 of the warmth sheet 301 to the inner surface of the clothes 321, specifically the shorts, and the skin contact surface 331 of the warmth sheet 301 is in contact with the wearer's skin. , The warmth sheet 301 is used.

In the warming article of the present disclosure, the warming solution contains a warming agent that activates the TRP channel, a cold feeling agent that activates the TRP channel, and a solvent.
The warming agent is not particularly limited as long as it activates the TRP channel, and examples thereof include an agonist for the TRPV1 receptor and an agonist for the TRPV3 receptor, and an agonist for TRPV1 is preferable. This is because the TRPV1 receptor has a high activation temperature threshold of more than 43 ° C. and can impart a high warmth to the wearer.

The warming agent is preferably a plant-derived compound from the viewpoint of the wearer's sense of security. Examples of the warming agent include capsicoside, capsaicin, capsaicinoids (dihydrocapsaicin, nordihydrocapsaicin, homodihydrocapsaicin, homocapsaicin, nonibamide, etc.), capsantin, benzyl nicotinate, β-butoxyethyl nicotinate, N-acyl. Vanillyl amide, vanillyl amide nonanoic acid, polyhydric alcohol, powdered chili, chili tincture, chili extract, vanillyl nonanoate ether, vanillyl alcohol alkyl ether derivatives (eg vanillyl ethyl ether, vanillyl butyl ether, vanillyl pentyl ether, Vanillyl hexyl ether), isovanillyl alcohol alkyl ether, ethyl vanillyl alcohol alkyl ether, veratrial alcohol derivative, substituted benzyl alcohol derivative, substituted benzyl alcohol alkyl ether, vanillyl propylene glycol acetal, ethyl vanillyl propylene glycol acetal, ginger extract, Ginger oil, gingerol, gingerone, hesperidin, and pyrrolidone carboxylic acid, and any combination thereof.

The warming agent is preferably not capsaicin from the viewpoint that the wearer does not feel pain, itching, etc., and vanillyl alcohol alkyl ether derivatives (for example, vanillyl ethyl ether, vanillyl butyl ether, vanillyl pentyl). More preferred are ether, vanillyl hexyl ether ginger extract, ginger oil, gingerol, and zingerone, and any combination thereof.

The cold sensation agent is not particularly limited as long as it activates the TRP channel, and examples thereof include an agonist for the TRPM8 receptor and an agonist for the TRPA1 receptor, and an agonist for the TRPM8 receptor is preferable. This is to prevent the wearer from feeling excessively cold.

Examples of the cooling agent include menthol (for example, l-menthol) and derivatives thereof (for example, menthol lactate, mentylglyceryl ether, for example, l-mentylglyceryl ether), methyl salicylate, camphor, plants (for example, mint, etc.). Eucalyptus) -derived essential oils and the like can be mentioned.

The solvent is not particularly limited as long as it can contain the warming agent and the cooling agent, and examples thereof include lipophilic solvents and hydrophilic solvents. The solvent can dissolve, disperse, and the like, for example, the warming agent and the cooling agent.
Examples of the lipophilic solvent include fats and oils, for example, natural oils (for example, fatty acid esters such as triglycerides, coconut oil, linseed oil, etc.), hydrocarbons (for example, paraffin, for example, liquid paraffin) and the like.
Examples of the hydrophilic solvent include water and alcohol. Examples of the alcohol include lower alcohols such as methanol, ethanol, ethylene glycol and glycerin, higher alcohols such as capryl alcohol, lauryl alcohol and myristyl alcohol.

The solvent is preferably an oil or fat (lipophilic solvent) or an alcohol (hydrophilic solvent) from the viewpoint of easily controlling the volatility, and particularly easily reducing the volatility. Further, when the warming article is an absorbent article, the solvent is preferably a lipophilic solvent from the viewpoint of not easily inhibiting the absorbability.

The warming solution contains the warming agent, preferably 0.0001 to 5.0% by mass, more preferably 0.0005 to 3.0% by mass, still more preferably 0.1 to 1.0% by mass. And even more preferably, it contains 0.3 to 0.7% by mass. This is from the viewpoint of warmth effect.
The warming solution contains the cooling agent, preferably 0.0001 to 5.0% by mass, more preferably 0.0005 to 3.0% by mass, still more preferably 0.1 to 1.0% by mass. And even more preferably, it contains 0.3 to 0.7% by mass. This is from the viewpoint that the wearer is less likely to feel itching and excessive coldness during the heat sensing time.

The warming solution contains the warming and cooling agents in a mass ratio of preferably 20: 1 to 1:10, more preferably 10: 1 to 1: 5, and even more preferably 2: 1 to 1: 1. Include in ratio. This is from the viewpoint that the wearer is less likely to feel itching during the heat sensing time, is less likely to feel cold, and is more likely to feel warm.

Warming articles of the present disclosure, a warm feeling solution, the basis weight of the warming agent is preferably 0.001 to 10 g / m ^2, more preferably 0.003~5g / m ^2, more preferably 0.01 to 2.5 g / m ^2, and even more preferably at a basis weight such that 0.05 to 1.5 g / m ^2. This is from the viewpoint of giving a feeling of warmth to the wearer.

In the warming article of the present disclosure, the warming solution is as shown below, as long as it does not interfere with the effect of imparting warmth to the wearer, in addition to the warming agent, cold sensitizer and solvent described above. It can contain at least one other component.
Examples of the at least one other component include a coolant, for example, a coolant that lowers the ambient temperature by heat of vaporization, and examples of the coolant include alcohols, for example, methanol and ethanol.

Examples of the at least one other component include silicone oil, silicone, and silicone-based resin.
Examples of the at least one other component include antioxidants such as BHT (2,6-di-t-butyl-p-cresol), BHA (butylhydroxyanisole), and propyl gallate. Be done.

Examples of the at least one other component include vitamins such as natural vitamins or synthetic vitamins. Examples of the above-mentioned vitamins include water-soluble vitamins such as B vitamins, for example, B vitamins ₁ , vitamin B ₂ , vitamin B ₃ , vitamin B ₅ , vitamin B ₆ , vitamin B ₇ , vitamin B ₉ , and vitamin B _12. Etc., vitamin C can be mentioned.
Examples of the vitamin include fat-soluble vitamins such as vitamin A group, vitamin D group, vitamin E group, and vitamin K group.
The vitamins also include their derivatives.

Examples of the at least one other component include amino acids such as alanine, arginine, lysine, histidine, proline, hydroxyproline, and peptides.

Examples of the at least one other component include zeolites such as natural zeolites such as analcime, rheulandite, heulandite, natrolite, stilbite, and stilbite, and synthetic zeolites.
Examples of the at least one other component include cholesterol, hyaluronic acid, lecithin, ceramide, placenta, collagen, elastin, squalane, petrolatum, trehalose and the like.

In addition, examples of the at least one other component include drugs, for example, skin astringents, anti-wrinkle agents, anti-wrinkle agents, anti-cellulite agents, whitening agents, antibacterial agents, antifungal agents and the like.
Examples of the skin astringent include oil-soluble skin astringents such as zinc oxide, aluminum sulfate and tannic acid, and oil-soluble polyphenols. Examples of the oil-soluble polyphenol include natural oil-soluble polyphenols such as Oobaku extract, Otogirisou extract, Odorikosou extract, Chamomile extract, Gobo extract, Salvia extract, Shinanoki extract, Seiyoubodaiju extract, Shirakaba extract, Sugina extract, Sage extract and Salvia extract. , Teuchigurumi extract, hibiscus extract, biwa leaf extract, bodaiju extract, hop extract, marronnier extract, yokuinin extract and the like.

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

Examples of the anti-cellulite agent include xanthine compounds such as aminophylline, caffeine, theophylline and theobromine.
Examples of the whitening agent include niacinamide, kojic acid, arbutin, glucosamine and derivatives, phytosterol derivatives, ascorbic acid and its derivatives, and quail extracts and placenta extracts.

In addition, examples of the at least one other component include anti-inflammatory components, pH adjusters, antibacterial agents, moisturizers, fragrances, pigments, dyes, pigments, plant extracts and the like. Examples of the anti-inflammatory component include naturally occurring anti-inflammatory agents such as button, ogong, otogirisou, chamomile, licorice, momonoha, yomogi, perilla extract, and synthetic anti-inflammatory agents such as allantin and dipotassium glycyrrhizinate. Be done.
Examples of the pH adjuster include those for keeping the skin weakly acidic, such as malic acid, succinic acid, citric acid, tartaric acid, and lactic acid.
Examples of the pigment include titanium oxide.

It is preferable that the warming article of the present disclosure, particularly the warming solution, does not contain an exothermic agent. By doing so, the wearer is less likely to suffer low temperature burns. In addition, since the warmth article itself does not generate heat, the adhesive portion for fixing the warmth article to the clothes and skin is difficult to soften, and after the use of the warmth article is finished, the warmth article is worn, the wearer's skin, etc. When removing from, the adhesive part of the warmth article does not easily remain on clothes, skin, etc.

The heating agent is not particularly limited as long as the heating agent itself generates heat. For example, heat of oxidation of metal powder (for example, iron powder), heat of neutralization of acid and alkali, heat of hydration of inorganic salt. Those that utilize chemical energy such as.

In the warm-feeling article of the present disclosure, the liquid-permeable sheet is not particularly limited as long as it has liquid permeability, and is composed of, for example, a cloth (for example, a non-woven fabric, a woven fabric, a knitted fabric), a perforated film, or the like. .. The cloth is preferably a non-woven fabric from the viewpoint of ease of manufacturing a warm-feeling article.
Examples of the non-woven fabric include air-laid pulp, air-through non-woven fabric, spunbond non-woven fabric, point-bond non-woven fabric, spunlace non-woven fabric, needle punch non-woven fabric, melt-blown non-woven fabric, and a combination thereof (for example, SMS).

Examples of the fibers constituting the cloth include natural fibers, synthetic fibers, and semi-synthetic fibers. Examples of the natural fiber include pulp fiber and regenerated cellulose fiber.
The regenerated cellulose fibers include rayon fibers, for example, viscose rayon obtained from viscose, polynosic and modal, cuprammonium rayon fibers obtained from a cuprammonium rayon solution of cellulose (also referred to as “cupra”); organic compounds. Rayon and tencel, which are obtained by an organic solvent spinning method using an organic solvent which is a mixed solution of water and water and do not pass through a cellulose derivative.
Examples of the semi-synthetic fiber include semi-synthetic cellulose fiber, for example, acetate fiber, for example, triacetate fiber and diacetate fiber.

Examples of the synthetic fiber include heat-sealing fibers such as polyolefin-based polymers such as polyethylene or polypropylene; polyester-based polymers such as terephthalate polymers such as polyethylene terephthalate (PET), polybutylene terephthalate and polypenthes. Examples thereof include lenterephthalate; polyamide-based polymers, for example, nylon 6 or nylon 6,6; acrylic-based polymers; polyacrylonitrile-based polymers; or modified products thereof, or fibers formed from combinations thereof.

Examples of the perforated film include a polyethylene or polypropylene sheet provided with a plurality of perforated portions.

When imparting on-demand properties to the warm-feeling articles of the present disclosure, the liquid-permeable sheet can have hydrophilicity or lipophilicity. In the hydrophilic liquid permeable sheet, the material constituting the liquid permeable sheet is treated with a hydrophilic agent known in the art (for example, a hydrophilic agent is applied, a hydrophilic agent is kneaded). Can be formed by Examples of the hydrophilizing agent include alkyl phosphate ester salts and alkyl phosphate metal salts. Examples of the hydrophilic agent include a mixture of an alkyl phosphate ester salt having 10 to 30 carbon atoms, a betaine compound having 10 to 30 carbon atoms, a sulfate ester salt or a sulfonate salt, and an alkyl phosphate ester salt and poly. Examples thereof include a mixture with an ether-modified silicone. By adjusting the polarity (lipophilicity and hydrophilicity) between the liquid permeable sheet and the intermediate sheet, the warmth article can have on-demand properties.

The inventor of the present application tends to have a longer heat sensing time in a warming article containing a warming agent than in a heat generating article containing a heat generating agent (for example, iron powder), and during the heat sensing time, In addition to the fact that the wearer is more likely to feel itching, the warmth article containing the warming agent has a skin condition of the wearer (eg, the wearer's skin condition) as compared with the heat generating article containing the heating agent (for example, iron powder). It was found that there is a difference in how to feel warmth depending on the degree of dryness of the skin. For example, when the wearer's skin is moistened with water, it is easier to maintain a state in which the stratum corneum of the wearer's skin is mainly swollen, as compared with the case where the wearer's skin is dry. Since the warming solution easily reaches the TRP channel mainly present in keratinocytes (keratinocytes), it is easy to feel warmth (the heat sensing time is short).

Therefore, by imparting on-demand property to the warm sensation article of the present disclosure, the wearer pushes the portion overlapping with the warm sensation region of the warm sensation article in the thickness direction of the warm sensation article, thereby causing the warm sensation article to be released from the warm sensation region. The warming solution is released, and the warming solution that has passed through the liquid permeable sheet reaches the wearer's skin and can give the wearer a warmer feeling than before pushing it in, so that the wearer feels warmth. You will be able to adjust.

As the liquid permeable sheet having lipophilicity, the material constituting the liquid permeable sheet is treated with a lipophilic agent known in the art (for example, a lipophilic agent is applied). Can be formed by kneading). Examples of the oil-forming agent include fatty acid esters (for example, triglycerides) and hydrocarbons (for example, linear hydrocarbons).

When the liquid permeable sheet of the warm sensation article of the present disclosure is a cloth and the on-demand property is imparted to the warm sensation article of the present disclosure, the liquid permeable sheet is preferably 0.005 to 0.060 g /. It has a fiber density of cm ³ , more preferably 0.010 to 0.050 g / cm ³ , and even more preferably 0.020 to 0.040 g / cm ³ . By adjusting the fiber density between the liquid permeable sheet and the intermediate sheet, the warmth article can have on-demand properties.
The method for measuring the fiber density will be described later.

When the liquid permeable sheet of the warm sensation article of the present disclosure is a cloth and the warm sensation article of the present disclosure is imparted on-demand, the liquid permeable sheet has a thickness of 30 g / cm ² under load. The thickness under a load of 3, g / cm ² is preferably 70% or less, more preferably 60% or less, and even more preferably 50% or less. By doing so, when the wearer pushes the warmth article in the thickness direction, the liquid permeable sheet is easily crushed, and the warmth solution held by the liquid permeable sheet is brought into contact with the wearer's skin. It becomes easier, and by extension, the on-demand property of the warmth article is improved.

When the liquid permeable sheet of the warm sensation article of the present disclosure is a cloth, when the warm sensation article of the present disclosure is imparted with on-demand property, the liquid permeable sheet has a thickness of 10 g / cm ² under load. The thickness under a load of 3, g / cm ² is preferably 70% or more, more preferably 80% or more, and even more preferably 90% or more. By doing so, the liquid permeable sheet is less likely to be crushed by the pressure of clothing or the like, and the warming solution held by the liquid permeable sheet is less likely to come into contact with the wearer's skin due to the pressure. On-demand performance is likely to improve.

In the present specification, 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 Kagaku Seiki Seisakusho Co., Ltd. in a constant temperature and humidity chamber with temperature: 20 ± 5 ° C and humidity: 65 ± 5% RH, and in the same constant temperature and humidity chamber, a liquid permeable sheet. (Hereinafter referred to as "sample") is allowed to stand for 24 hours.
(2) The thickness of the sample is measured at 10 points at different locations, and the average value thereof is adopted as the thickness of the sample.
The load is adjusted by changing the stylus. A stylus with a diameter of 44 mm is used under the condition of load: 3 g / cm ^2, a stylus with a diameter of 25 mm is used under the condition of load: 10 g / cm ^{2, and} a stylus with a diameter of 30 g / cm ² is used under the condition of load: 30 g / cm ^2. : Use a 14 mm stylus.

The liquid permeable sheet preferably has a basis weight of 10 to 100 g / m ² , and more preferably 20 to 50 g / m ² .

In the warmth article of the present disclosure, the liquid permeable sheet is a material selected from the group consisting of a heat-generating material, a heat-insulating material, a hygroscopic material, and an arbitrary combination thereof (hereinafter, simply referred to as "functional material"). May be referred to).
When the liquid-permeable sheet contains the above-mentioned predetermined functional material, the stratum corneum of the wearer's skin is likely to swell due to moisture due to evaporation, sweat, etc., and the warming solution becomes warm. It facilitates access to TRP channels that are predominantly present in keratinocytes (keratinocytes). As a result, the heat sensing time is shortened, and the wearer is less likely to feel itching during the heat sensing time.

Examples of the heat-generating material include (i) moisture-absorbing heat-generating material (moisture-absorbing heat-generating fiber, moisture-absorbing heat-generating sheet, etc.), (ii) heat storage material (heat storage fiber, heat storage sheet, etc.), and (iii) far-infrared radiant material (far). Infrared radiation fiber, far infrared radiation sheet, etc.) can be mentioned.

Examples of the moisture-absorbing and heat-generating material include acrylate-based materials and wool. Examples of the heat storage material include a material containing a substance (zirconium carbide and the like) that absorbs sunlight and converts it into heat energy, a carbon material, and the like. Examples of the far-infrared radiation material include materials containing ceramics that emit far-infrared rays when heated.
Examples of the heat insulating material include hollow fibers and feathers.
Examples of the hygroscopic material include the above-mentioned natural fibers and semi-synthetic fibers.

Specifically, in the warm-feeling article of the present disclosure, when the liquid-permeable sheet contains a moisture-absorbing heat-generating material, for example, a moisture-absorbing heat-generating fiber, moisture such as evaporation from the wearer's skin and sweat is provided. Then, the moisture-absorbing heat-generating fiber generates heat, which makes it easier for the wearer to sweat. The moisture of the wearer's sweat then swells the stratum corneum, mainly the stratum corneum, of the wearer's skin, making it easier for the warming solution to reach the TRP channels predominantly present in the keratinocytes (keratinocytes). As a result, the heat sensing time is shortened, and the wearer is less likely to feel itching during the heat sensing time.

In addition, when the liquid permeable sheet contains a heat storage material or a far-infrared radiation material, the wearer can easily sweat, and the moisture of the wearer's sweat causes the stratum corneum of the wearer's skin to be mainly moist. It swells and facilitates the warming solution to reach the TRP channels predominantly present in keratinocytes (keratinocytes). As a result, the heat sensing time is shortened, and the wearer is less likely to feel itching during the heat sensing time.

In the warmth article of the present disclosure, when the liquid permeable sheet contains a heat insulating material, the wearer easily sweats, and the moisture content of the wearer's sweat causes moisture mainly in the stratum corneum of the wearer's skin. It swells with and makes it easier for the warming solution to reach the TRP channel, which is mainly present in keratinocytes (keratinocytes). As a result, the heat sensing time is shortened, and the wearer is less likely to feel itching during the heat sensing time.

In the warmth article of the present disclosure, when the liquid permeable sheet contains a hygroscopic material, the hygroscopic material retains moisture such as evaporation and sweat of the wearer, and mainly forms the stratum corneum of the wearer's skin. It is easy to swell with water, and the warming solution is easy to reach the TRP channel mainly present in keratinocytes (keratinocytes). As a result, the heat sensing time is shortened, and the wearer is less likely to feel itching during the heat sensing time.

In the warm-feeling article of the present disclosure, the material of the liquid-impermeable sheet is not particularly limited as long as it has liquid-impermeable properties, and is, for example, a film, for example, a moisture-permeable film made of polyethylene, polypropylene, or the like. , Non-breathable film, non-woven fabric such as spunbond or spunlace bonded with a breathable film, multi-layered non-woven fabric such as SMS, and the like.
The liquid impermeable sheet preferably has a basis weight of 10 to 50 g / m ² , and more preferably 15 to 30 g / m ² .

In the warm-feeling article of the present disclosure, it is preferable that the liquid-impermeable sheet is composed of a non-moisture-permeable film. By doing so, the moisture, water vapor, etc. existing in the warmth region and the wearer's skin in contact with the warmth region are less likely to permeate the liquid impermeable sheet and be discharged to the outside of the warmth article, and the wearer's skin. It is easy for the stratum corneum of the skin to maintain a swollen state with water, and it is easy for the warming solution to reach the TRP channel mainly present in the keratinocytes (keratinocytes). As a result, the heat sensing time is shortened, and the wearer is less likely to feel itching during the heat sensing time.

The warmth article of the present disclosure may include an additional member, for example, an intermediate sheet (for example, a warmth solution holding sheet), an absorber, or the like between the liquid permeable sheet and the liquid impermeable sheet.
Examples of the material of the intermediate sheet include those listed as the material of the liquid permeable sheet.

The intermediate sheet may contain a warming solution, that is, it may be a warming solution holding sheet and may not contain a warming solution. When the intermediate sheet is used as a warming solution holding sheet and the solvent of the warming solution is an oil-based solvent, the intermediate sheet is a cloth formed from synthetic fibers, for example, a non-woven fabric, a woven fabric, or a knitted fabric. Etc., for example, a non-woven fabric formed from synthetic fibers. Further, when the intermediate sheet is used as a warming solution holding sheet and the solvent of the warming solution is a hydrophilic solvent, the intermediate sheet is a cloth composed of cellulosic fibers, for example, a non-woven fabric or a woven fabric. It can be a cloth, knitted fabric, etc., for example, a tissue composed of pulp fibers, air-laid pulp, or the like.

When the warmth article of the present disclosure comprises the following configuration [(i) further comprising an intermediate sheet, and (ii) the intermediate sheet constitutes a warmth solution holding sheet (warmth region)], the warmth article. The intermediate sheet can be hydrophilic or lipophilic when imparting on-demand properties. The hydrophilic intermediate sheet is formed by treating the material constituting the intermediate sheet with a hydrophilic agent known in the art (for example, applying a hydrophilic agent or kneading the hydrophilic agent). sell. Examples of the hydrophilizing agent include the hydrophilizing agents listed in the description of the liquid permeable sheet. By adjusting the polarity (lipophilicity and hydrophilicity) between the liquid permeable sheet and the intermediate sheet, the warmth article can have on-demand properties.

As an intermediate sheet having lipophilicity, the material constituting the intermediate sheet is treated with a lipophilic agent known in the art (for example, a hydrophilic agent is applied or a hydrophilic agent is kneaded). Can be formed. Examples of the oil-forming agent include the oil-forming agents listed in the description of the liquid-permeable sheet.

When the warmth article of the present disclosure comprises the following configuration [(i) further comprising an intermediate sheet, and (ii) the intermediate sheet constitutes a warmth solution holding sheet (warmth region)], the warmth article. When imparting on-demand properties to the intermediate sheet, the intermediate sheet is preferably 0.010 to 0.500 g / cm ³ , more preferably 0.020 to 0.300 g / cm ³ , and even more preferably 0.030 to 0. It has a fiber density of 100 g / cm ³ .
The intermediate sheet preferably has a basis weight of 10 to 200 g / m ² , and more preferably 15 to 150 g / m ² .

The warmth article of the present disclosure further comprises the following configurations [(i) an intermediate sheet, (ii) an intermediate sheet constitutes a warmth solution holding sheet (warmth region), and (iii) a liquid permeable sheet. When imparting on-demand properties to the warmth article, the liquid permeable sheet is preferably 0.005 g / cm ³ or more, more preferably 0.010 g / cm, than the intermediate sheet. ³ or more, more preferably 0.015 g / cm ³ or more, more preferably 0.020 g / cm ³ or more, more preferably 0.025 g / cm ³ or more, and more preferably the difference in 0.030 g / cm ³ or more Has a small fiber density. By doing so, the warm sensation solution is easily held by the warm sensation body having a high fiber density in a state where no force is applied, and when the wearer pushes the warm sensation article, the warm sensation solution becomes liquid permeable. It is easier to move to the seat and then to the wearer's skin.

The warmth article of the present disclosure further comprises the following configurations [(i) an intermediate sheet, (ii) an intermediate sheet constitutes a warmth solution holding sheet (warmth region), and (iii) a liquid permeable sheet. When imparting on-demand properties to the warmth article, the liquid permeable sheet is preferably 0.440 g / cm ³ or less, more preferably 0.300 g / cm, than the intermediate sheet. ³ or less, more preferably 0.250 g / cm ³ or less, even more preferably 0.200 g / cm ³ or less, even more preferably 0.150 g / cm ³ or less, even more preferably 0.100 g / cm ³ or less, Even more preferably 0.060 g / cm ³ or less, even more preferably 0.045 g / cm ³ or less, even more preferably 0.040 g / cm ³ or less, and even more preferably 0.035 g / cm ³ or less. Has a small fiber density. By doing so, when the wearer pushes in the warmth article, the warmth solution moves to the liquid permeable sheet, and then easily moves to the wearer's skin.

The fiber densities of the liquid permeable sheet and the intermediate sheet are measured as follows.
(1) In a constant temperature and humidity chamber with temperature: 20 ± 5 ° C and humidity: 65 ± 5% RH, FS-60DS manufactured by Daiei Kagaku Seiki Seisakusho Co., Ltd. [Measurement surface 44 mm (diameter), measurement pressure 3 g / cm ² ] Is prepared, and the liquid permeable sheet and / or the intermediate sheet (hereinafter referred to as "sample") is allowed to stand in the same constant temperature and humidity chamber for 24 hours.
(2) From the above sample, 10 sample pieces having a size of 0.1 m × 0.1 m are collected.
(3) By measuring the mass of each sample piece and then dividing the mass (g) of each sample piece by the area (m ² ) of each sample piece, the basis weight of each sample piece: bw (g / g /). Calculate m ² ).

(4) Using FS-60DS, pressurize 5 different parts of each sample piece, measure the thickness of each part after 10 seconds of pressurization, and calculate the average value of the 5 measured values of each sample piece. Thickness: t (m).
(5) In each sample piece, the fiber density of each sample piece is adjusted by dividing the basis weight of the sample piece: bw (g / m ² ) by the thickness of the sample piece: t (m) and adjusting the unit. : Calculate fd (g / cm ³ ).
(6) The average value of the fiber density: fd (g / cm ³ ) of a total of 10 sample pieces is calculated, and the average value is adopted as the fiber density: FD (g / cm ³ ).

The warmth article of the present disclosure further comprises the following configurations [(i) an intermediate sheet, (ii) the intermediate sheet constitutes a warmth solution holding sheet (warmth region), and (iii) a solvent for the warmth solution. Is a lipophilic solvent], it is preferable that the lipophilicity of the intermediate sheet is higher than the lipophilicity of the liquid permeable sheet when imparting on-demand properties to the warm-feeling article.

By doing so, the warming solution containing the lipophilic solvent is more likely to be present in the intermediate sheet constituting the warming region than the liquid permeable sheet, and when the wearer pushes in the warming article, the intermediate sheet (warm). The warm sensation solution is released from the sensation region), moves to the liquid permeable sheet, and the warm sensation solution that has passed through the liquid permeable sheet reaches the wearer's skin and can give the wearer a warm feeling. .. Further, when the wearer stops pushing the warmth article, the warmth solution that reaches the wearer's skin gradually due to the difference between the lipophilicity of the intermediate sheet and the lipophilicity of the liquid permeable sheet. Return to the intermediate sheet (warm area). Therefore, it becomes easier for the wearer to control the warmth feeling, and the warmth feeling article tends to be excellent in on-demand property.

Further, the warmth article of the present disclosure further comprises the following constitution [(i) an intermediate sheet, (ii) the intermediate sheet constitutes a warmth solution holding sheet (warmth region), and (iii) a warmth solution. The solvent is a hydrophilic solvent], it is preferable that the hydrophilicity of the intermediate sheet is higher than the hydrophilicity of the liquid permeable sheet when imparting on-demand properties to the warm-feeling article. This is from the viewpoint of improving the on-demand property of the warmth article.

By doing so, the warming solution containing the hydrophilic solvent is more likely to be present in the intermediate sheet constituting the warming region than the liquid permeable sheet, and when the wearer pushes in the warming article, the intermediate sheet (warm). The warm sensation solution is released from the sensation region), moves to the liquid permeable sheet, and the warm sensation solution that has passed through the liquid permeable sheet reaches the wearer's skin and can give the wearer a warm feeling. .. In addition, when the wearer stops pushing the warmth article, the warmth solution that reaches the wearer's skin gradually due to the difference between the hydrophilicity of the intermediate sheet and the hydrophilicity of the liquid permeable sheet. Return to the intermediate sheet (warm area). Therefore, it becomes easier for the wearer to control the warmth feeling, and the warmth feeling article tends to be excellent in on-demand property.

The high and low lipophilicity and the high and low hydrophilicity are evaluated as follows.
(1) Prepare the automatic minimum contact angle meter MCA-J of Kyowa Surface Chemistry Co., Ltd. in a constant temperature and humidity chamber with a temperature of 20 ± 5 ° C and humidity: 65 ± 5% RH, and liquid in the same constant temperature and humidity chamber. The permeable sheet and the intermediate sheet (hereinafter referred to as "sample") are allowed to stand for 24 hours.
(2) From the MCA-J inkjet, fine droplets (20 pL) of deionized water are measured on the surface of the sample to be measured (the surface of the fiber when the sample is a cloth, the surface of the sheet when the sample is a sheet). ), And the state of the fine droplets is recorded over time.
(3) The image immediately after the microdroplets adhere to the surface of the sample is image-analyzed, and the contact angle of the microdroplets with respect to the surface of the sample is calculated.
(4) For the contact angle, the average value of the measured values of 20 different fibers at a total of 20 locations is adopted.
(5) A sample having a large contact angle is a sample having high lipophilicity (a sample having low hydrophilicity), and a sample having a small contact angle is a sample having low lipophilicity (a sample having high hydrophilicity).

As the absorber, the core wrap covers the absorption core containing the pulp fiber and the polymer absorbent, and the core wrap covers the absorption core containing the polymer absorbent or the absorption core composed of the polymer absorbent. Things etc. can be mentioned. Examples of the core wrap include the above-mentioned intermediate sheet. Examples of the warmth article provided with the absorber include an absorbent article.

The warmth article of the present disclosure can be provided with an adhesive portion for fixing the warmth article to clothing, the wearer's skin, etc., and the adhesive portion includes a hot melt adhesive, for example, styrene-ethylene-. Pressure-sensitive type mainly composed of rubber such as butadiene-styrene (SEBS), styrene-butadiene-styrene (SBS), styrene-isoprene-styrene (SIS), or olefin such as linear low density polyethylene. Adhesives or heat-sensitive adhesives; water-sensitive adhesives made of water-soluble polymers (eg, polyvinyl alcohol, carboxylmethylcellulose, gelatin, etc.) or water-swellable polymers (eg, polyvinyl acetate, sodium polyacrylate, etc.) Can be mentioned.

The warmth article of the present disclosure is preferably wrapped in a packaging sheet before use. This is from the viewpoint of protecting the warm sensation solution held by the warm sensation article, from the viewpoint of preventing the warm sensation solution held by the warm sensation article from leaking to the outside, and the like. For example, the warmth article of the present disclosure is preferably a package in which one or more warmth articles are wrapped in a packaging sheet, and one warmth article is an individual package in which one warmth article is wrapped in a packaging sheet. Is more preferable.

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

The warmth article of the present disclosure is not particularly limited as long as it contains a warmth solution, and examples thereof include an absorbent article and a warmth sheet.
The absorbent article is not particularly limited and includes an absorber, for example, a sanitary napkin, a shorts type sanitary napkin, a panty liner, a disposable diaper, an incontinence pad, an interlipinal pad, a tampon, a puerperal pad, and a breast milk pad. , Hemp pad, sweat pad, puerperal sheet (dressing sheet), pet diaper, pet sheet and the like.

In the above-mentioned absorbent article, the warming region containing the warming solution is located at a position where the absorbent body and the absorbent article do not overlap with each other in the plane direction of the absorbent article, and the thickness of the absorbent body and the absorbent article. It can be placed at positions that overlap in the direction, positions of any combination thereof, and the like. In the absorbent article, the warming region containing the warming solution may be arranged in a liquid permeable sheet, the above-mentioned intermediate sheet, an absorber, any combination thereof, etc. in the thickness direction of the absorbent article.
The absorbent article generally includes a liquid permeable sheet, a liquid permeable sheet, and an absorber between the liquid permeable sheet and the liquid permeable sheet.

The warm sensation 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 warm sensation solution is arranged may form a warm sensation region. .. For example, when the warm sensation solution is placed on the intermediate sheet, when the liquid permeable sheet is composed of fabric, a part of the warm sensation solution is, for example, a region on the intermediate sheet side of the adjacent liquid permeable sheet. In some cases, the region mainly moves in the thickness direction of the absorbent article, and the region on the intermediate sheet side of the liquid permeable sheet forms a warm feeling region. Further, when the warm sensation solution is arranged on the liquid permeable sheet, a part of the warm sensation solution is, for example, a liquid of an adjacent intermediate sheet, a region on the liquid permeable sheet side, or an adjacent absorber. The region on the permeable sheet side moves mainly in the thickness direction of the absorbent article, and the region on the liquid permeable sheet side of the intermediate sheet or the region on the liquid permeable sheet side of the absorber is the warmth region. May form.

The warmth article of the present disclosure has the following constitution [(i) the warmth article is an absorbent article provided with an absorber, and (ii) the warmth solution is in the thickness direction of the absorber and the absorbent article. Arranged in non-overlapping positions, and (iii) the warmth article is longitudinally folded at a widthwise folding axis extending in the widthwise direction of the absorbent article]. It is preferable that the folding shafts are arranged so as to overlap the warmth region in the thickness direction of the warmth article in the unfolded state of the warmth article.

When the width direction folding axis is arranged so as to overlap the warm feeling area in the thickness direction in the unfolded state of the warm feeling article, the width direction folding is a portion of the warm feeling area that overlaps with the width direction folding axis. Since the material density of the shaft overlapping portion is higher than the material density of the width direction folding shaft non-overlapping portion that does not overlap with the width direction folding shaft in the warm feeling region, the warming solution of the width direction folding shaft overlapping portion (Basis weight) tends to be larger than the amount of warming solution (basis weight) in the non-overlapping portion of the folding axis in the width direction.

Therefore, when the warmth region is located at a position corresponding to the wearer's lower abdomen, the widthwise folding axis overlap of the warmth region is the wearer's pelvic lymph nodes (intestinal sacrum, closed node). , External intestinal sacrum, anterior sacral sacrum, common sacral sacrum, basal ligament, sacral sacrum, superior inguinal segment, para-aortic segment, etc. It can be expected to raise their temperature and impart a massage effect to them.

The warmth article of the present disclosure has the following constitution [(i) the warmth article is an absorbent article provided with an absorber, and (ii) the warmth solution is in the thickness direction of the absorber and the absorbent article. Arranged in non-overlapping positions, and (iii) the warmth article is longitudinally folded with a longitudinal folding axis extending in the longitudinal direction of the absorbent article]. It is preferable that the folding shafts are arranged so as to overlap the warmth region in the thickness direction of the warmth article in the unfolded state of the warmth article.

When the longitudinal folding axis is arranged so as to overlap the warming area in the thickness direction in the deployed state of the warmth article, the longitudinal folding axis is a portion of the warming area that overlaps with the longitudinal folding axis. Since the material density of the shaft overlapping portion is higher than the material density of the longitudinal folding shaft non-overlapping portion in the warming region, which does not overlap with the longitudinal folding shaft, the warming solution of the longitudinal folding shaft overlapping portion (Basis weight) tends to be larger than the amount of warming solution (basis weight) in the non-overlapping portion of the longitudinal folding axis.

Therefore, when the warmth region is located in a position corresponding to the wearer's lower abdomen, the longitudinal folding axis overlap of the warmth region is the wearer's pelvic lymph nodes (intestinal sacrum, closed node). , External intestinal sacrum, anterior sacral sacrum, common sacral sacrum, basal ligament sacrum, sacral sacrum, superior inguinal segment, para-inguinal segment, etc.) It can be expected to raise their temperature and impart a massage effect to them.

The warming sheet includes, for example, a clothing fixing type warming sheet (for example, an adhesive portion for fixing to the wearer's clothing is provided on the clothing contact surface of the liquid impermeable sheet, and the adhesive portion is worn. For fixing to the wearer's skin on the skin-fixing type warmth sheet (for example, the skin contact surface of the liquid-permeable sheet (for example, the periphery of the warmth sheet)) An adhesive portion is provided, and the adhesive portion is attached to the wearer's skin for use).

The clothing to which the clothing fixing type warmth sheet is fixed is not particularly limited, and examples thereof include those having a portion in direct contact with the wearer's skin and preferably used to fit the wearer. Examples of the clothing include underwear (for example, shorts, shirts, brassieres, etc.), outerwear (for example, tops, underwear), socks, gloves, mufflers, face masks, eye masks, and the like.

The part where the warmth sheet can give a warmth is not particularly limited, and for example, the head (for example, the face, for example, the eye), the neck, the upper limbs (for example, the chest, the abdomen, the inguinal region, and the back). , Waist, upper arm, forearm, hand), lower limbs (for example, thigh, lower leg, foot) and the like.
In the warming sheet, the warming solution can be held on a liquid permeable sheet, the intermediate sheet, or the like.

In the warm feeling sheet, the warm feeling region containing the warm feeling solution can be arranged at the entire surface, the central portion, the peripheral portion, the position of any combination thereof, or the like in the plane direction of the warm feeling sheet. In the warm feeling sheet, the warm feeling region containing the warm feeling solution can be arranged in a liquid permeable sheet, the above-mentioned intermediate sheet, any combination thereof, etc. in the thickness direction of the warm feeling sheet.
The warmth sheet generally includes at least a liquid-impermeable sheet and a liquid-permeable sheet.

The warm sensation solution may move on or inside the material constituting the warm sensation sheet, and a part of the material adjacent to the material on which the warm sensation solution is arranged may form a warm sensation region. .. For example, when the warm sensation solution is placed on the intermediate sheet, when the liquid permeable sheet is composed of fabric, a part of the warm sensation solution is, for example, a region on the intermediate sheet side of the adjacent liquid permeable sheet. In some cases, the region mainly moves in the thickness direction of the warm feeling sheet, and the region on the intermediate sheet side of the liquid permeable sheet forms the warm feeling region. Further, when the warm sensation solution is arranged on the liquid permeable sheet, a part of the warm sensation solution is mainly in the area of the adjacent intermediate sheet on the liquid permeable sheet side, mainly the thickness of the warm sensation sheet. The region on the liquid permeable sheet side of the intermediate sheet that moves in the longitudinal direction may form a warm feeling region.

Hereinafter, the present disclosure will be described with reference to examples, but the present disclosure is not limited to these examples.
[Manufacturing Example 1]
As a warming article, the sanitary napkin No. according to the first embodiment. 1 was manufactured. The liquid permeable sheet in the absorption body and the warmth body is an air-through non-woven fabric (basis weight: 30 g / m ² ), and the warmth solution holding sheet is made of air-laid pulp (basis weight: 60 g / m ² ). The sensitive solution was applied in an amount such that the basis weight of the warming agent was 1.0 g / m ² . The warming solution includes vanillyl butyl ether (10.0% by mass) as a warming agent, l-menthylglyceryl ether (10.0% by mass) as a cooling agent, and isononyl isononanoate as a solvent. It consisted of. The liquid-impermeable sheet was a polyethylene film (basis weight: 24 g / m ² ).

[Manufacturing Example 2]
As the warmth article, the warmth sheet No. according to the fourth embodiment. 1 was manufactured. The liquid permeable sheet is an air-through non-woven fabric (basis weight: 30 g / m ² ), the warming solution holding sheet is composed of air-laid pulp (basis weight: 100 g / m ² ), and the warming solution is a warming agent. The coating was applied in such an amount that the basis weight of the material was 1.0 g / m ² . The warming solution includes vanillyl butyl ether (0.3% by mass) as a warming agent, l-menthylglyceryl ether (0.3% by mass) as a cooling agent, and a surfactant (1.2% by mass). It was composed of (% by mass) and water as a solvent. The liquid-impermeable sheet was a polyethylene film (basis weight: 24 g / m ² ).

[Manufacturing Example 3]
Sanitary napkins, as in Production Example 1, except that the warming solution contained vanillyl butyl ether (10.0% by mass) as a warming agent and no l-menthylglyceryl ether as a cooling agent. Napkin No. 2 was manufactured.
[Manufacturing Example 4]
The warmth solution was similar to Production Example 2 except that the warming solution contained vanillyl butyl ether (0.3% by mass) as a warming agent and no l-menthylglyceryl ether as a cooling agent. Sheet No. 2 was manufactured.

[Examples 1 and 2, and Comparative Examples 1 and 2]
For each of the plurality of subjects, the sanitary napkin No. 1 and No. When I had him wear 2, the sanitary napkin No. No. 1 is a sanitary napkin No. We received the answer that it was difficult to remember itching in the lower abdomen before feeling warmer than 2. In addition, sanitary napkin No. 1 received the answer that it was difficult to remember itching even after starting to feel warmth.
In addition, for each of the plurality of subjects, the warmth sheet No. 1 and No. When 2 was worn on the lower abdomen and shoulders, the warmth sheet No. No. 1 is a warmth sheet No. We received the answer that it was difficult to remember itching in the lower abdomen and shoulders before feeling warmer than 2. In addition, the warmth sheet No. 1 received the answer that it was difficult to remember itching even after starting to feel warmth.

1 Sanitary napkin 3 Absorbent body 5 Warm body 7 Liquid permeable sheet 9 Liquid impermeable sheet 11 Absorber 13 Warm solution holding sheet 15 Shape holding member 17 Overlapping part 19 Clothes 21 Adhesive part 23 Flap part 25 Sealing part 27 Embossed part 29 Packaging sheet 31 Warm feeling area L Longitudinal direction W Width direction T Thickness direction F ₁ Longitudinal direction 1st folding axis F ₂ Longitudinal direction 2nd folding axis F ₃ Width direction 1st folding axis F ₄ Width direction 2nd folding Axis F ₅ Width direction 3rd folding axis F ₆ folding axis

Claims (10)

A liquid permeable sheet, an absorbent article comprising a liquid-impermeable sheet, and an absorbent body therebetween,
The absorbent article comprises a warming region containing a warming agent that activates the TRP channel, a cold sensitizer that activates the TRP channel, and a warming solution containing a solvent.
The absorbent article . The absorbable article according to claim 1, wherein the warming agent is an agonist for the TRPV1 receptor and the cold sensitizer is an agonist for the TRPM8 receptor. The absorbent article according to claim 1 or 2, wherein the solvent is a lipophilic solvent. The absorbent article according to any one of claims 1 to 3, wherein the warming solution contains the warming agent and the cold feeling agent in a mass ratio of 20: 1 to 1:10. The absorbent article, have a longitudinal direction, width direction and thickness direction orthogonal to each other, the warming region, wherein an absorber is disposed in a position that does not overlap the thickness direction, claim The absorbent article according to any one of 1 to 4. The absorbent article according to claim 5, wherein the warmth region is arranged at a position corresponding to the lower abdomen of the wearer and in a region wider in the width direction than the absorber . The absorbent article is folded in the longitudinal direction by the widthwise folding axis extending in the width direction, and the widthwise folding axis is the warm feeling region and the said in the unfolded state of the absorbent article. The absorbent article according to claim 6, which is arranged so as to overlap in the thickness direction. The absorbent article is folded in the width direction by a pair of longitudinal folding shafts extending in the longitudinal direction, and the pair of longitudinal folding shafts absorb the absorbent article in the unfolded state. The absorbent article according to claim 6 or 7, which is arranged so as to overlap the warm feeling region outside the body in the width direction and in the thickness direction. The absorbent article is a sanitary napkin, is selected from the group consisting of shorts-type sanitary napkins and disposable diapers, absorbent article according to any one of claims 5-8. The absorbent article does not include a heating agent, absorbent article according to any one of claims 1 to 9.

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