KR102414416B1 - warmth sheet - Google Patents

Abstract

An object of the present disclosure is to provide a warm-feeling sheet in which a low-temperature burn is unlikely to occur, and a fixing portion is unlikely to remain on clothing. The warm-sensitive sheet of the present disclosure has the following configuration. A warm feeling sheet (1) comprising, in that order, a liquid holding and liquid permeable skin abutment sheet (7), a liquid impervious clothing abutment sheet (11), and a fixing part (13) for fixing to clothing in that order. As an example, the warming sheet 1 includes a warming composition including a warming agent that activates TRP channels and a solvent, and does not contain a heating agent.

Description

warmth sheet

The present disclosure relates to a warm feeling sheet.

A heating sheet that imparts heat to a wearer's body is known. For example, in Patent Document 1, one side is made of a breathable multilayer structure obtained by laminating a nonwoven fabric and a porous film, and the other side is a bonding side having a bonding means, containing moisture and the presence of air. As a bag for accommodating a heating composition that generates heat under the air-permeable multilayer structure, the dimensional change rate in the transverse direction at 50°C with respect to the dimension at 20°C is a positive value, and compressive energy of 0.15 gfcm/cm 2 or more A bag for containing a heating composition is described, characterized in that it has.

Japanese Patent Laid-Open No. 2006-239015

In the bag for accommodating a heat generating composition described in Patent Document 1, an oxidation reaction of a metal powder is used in order to impart heat to the wearer. Accordingly, in the use of the bag for accommodating the heating composition, there is a fear that a low-temperature burn may occur in a portion in contact with the bag for accommodating the heating composition of the wearer due to the heat generated by the bag for accommodating the heating composition. In addition, with the generation of heat and water vapor in the bag for accommodating the heating composition, the affixing means for fixing to the wearer's clothing softens, and after the bag for accommodating the heating composition is used, the bag for accommodating the heating composition is peeled off from the clothing. Thus, when the bag for accommodating the heat generating composition was discarded, the affixing means remained on the clothes, and the affixing means sometimes stained the clothes.

Accordingly, an object of the present disclosure is to provide a warm-feeling sheet in which a low-temperature burn is unlikely to occur, and a fixing portion is unlikely to remain on clothing.

The present inventors provide a warm-feeling sheet comprising, in that order, a liquid-holding and liquid-permeable skin abutment sheet, a liquid-impervious clothing abutment sheet, and a fixing part for fixing to clothing, wherein the warm-feeling sheet comprises: A warming sheet comprising a warming agent for activating TRP channels and a warming composition including a solvent, and not including a heating agent, has been found.

In the warm-sensitive sheet of the present disclosure, it is difficult to cause a low-temperature burn, and it is difficult for the fixing part to remain on clothes.

1 is a perspective view of an individual packaging body 3 of a warming-sensitive sheet in which the warming-sensitive sheet 1 according to the first embodiment is individually packaged.
Fig. 2 is a perspective view of the warming sheet 1 according to the first embodiment.
3 is a plan view of the warm-sensitive sheet 1 according to the first embodiment.
4 is a rear view of the warm-sensitive sheet 1 according to the first embodiment.
5 is an exploded perspective view of the warming sheet 1 according to the first embodiment.
6 is a view for explaining a wearing state of the warm-feeling sheet 1 according to the first embodiment.

Specifically, the present disclosure relates to the following aspects.

[Aspect 1]

A thermal sensation sheet comprising in this order a liquid-holding and liquid-permeable skin-abutting sheet, a liquid-impervious clothing-abutting sheet, and a fixing unit for fixing to clothing, in that order,

The warming sheet comprises a warming agent for activating TRP channels, and a warming composition including a solvent, and does not contain a heating agent.

Since the warming sheet does not contain a heating agent and contains a predetermined warming composition containing a warming agent, a feeling of warmth can be imparted to the wearer without directly heating the wearer's skin from the outside. Accordingly, when the warm-sensitive sheet is fixed to the wearer's clothing, low-temperature burns are unlikely to occur on the portion of the wearer's skin in contact with the warming-sensitive sheet, and a sufficient feeling of warmth can be imparted to the wearer. In addition, since the warm feeling sheet can impart a feeling of warmth to the wearer without directly heating the wearer's skin from the outside, after the warm feeling sheet is fixed to the wearer's clothes and used, the fixing part is difficult to soften, so the warm feeling sheet is discarded. When doing this, it is difficult for the fixing part to remain on the clothes.

[Mode 2]

The warming sheet according to aspect 1, wherein the warming agent is an agonist for the TRPV1 receptor.

In the warming sheet, since the warming agent is an agonist for the TRPV1 receptor, when the warming sheet is used, the wearer can feel a temperature higher than 43° C., which is referred to as the activation temperature threshold of the TRPV1 receptor, so that the wearer feels warm is easier to feel than In addition, as a result of activation of the TRPV1 receptor in the warming agent-contacting portion of the wearer's skin, which was in contact with the warming agent, by the warming agent, heat is generated from the warming agent-contacting portion via the sympathetic nervous system, thereby causing the wearer's skin to feel warm The temperature of the first contact part can be raised.

[Mode 3]

The warming sheet according to Aspect 1 or 2, wherein the skin-contacting sheet includes the warming composition.

In the above-mentioned warm-feeling sheet, since the skin-contacting sheet in contact with the wearer's skin contains a predetermined warming-feeling composition, when the warm-feeling sheet is used, the wearer is likely to feel a warm feeling from the initial stage after wearing.

[Mode 4]

The warming sheet according to any one of Aspects 1 to 3, wherein the warming composition contains the solvent in a proportion of 50.0 to 99.9 mass%.

In the warming sheet, since the warming composition contains a predetermined proportion of the solvent, when the warming sheet is used, the wearer tends to feel the warmth from the initial stage after wearing and for a long time.

[Mode 5]

The warm feeling sheet according to any one of aspects 1 to 4, wherein the air permeability of the skin facing sheet is higher than the air permeability of the wearing contact sheet.

In the warming sheet, since the air permeability of the skin contact sheet is higher than that of the clothing contact sheet, the solvent contained in the warm feeling composition passes through the skin contact sheet and moves to the outside. It becomes less susceptible to influence, and when the warm feeling sheet is discarded, it becomes difficult for the fixing part to remain on the clothes. In addition, when the warming agent generates heat and moisture such as sweat from a portion of the wearer's skin that has been in contact with the warming agent, the heat and moisture such as sweat pass through the clothing contact sheet. Therefore, it is difficult to reach the fixing part, so that the fixing part is less affected by the heat and moisture such as sweat.

[Mode 6]

The thermal conductivity sheet according to any one of aspects 1 to 5, wherein the thermal conductivity of the skin facing sheet is lower than the thermal conductivity of the clothing facing sheet.

In the warming sheet, since the thermal conductivity of the skin-contacting sheet is lower than that of the wearing-abutting sheet, when heat is generated from the warming agent-contacting portion of the wearer's skin, the heat passes through the skin-contacting sheet, It becomes difficult to reach the inside of the warm-sensitive sheet, and furthermore, the fixing part of the warm-sensitive sheet. As a result, the fixing portion is less affected by the heat, and when the warm-sensitive sheet is discarded, the fixing portion is less likely to remain on the garment.

[Mode 7]

The warm feeling sheet according to any one of aspects 1 to 6, further comprising an intermediate layer between the skin facing sheet and the clothing facing sheet.

In the warming sheet, an intermediate layer is further included between the skin contact sheet and the clothing contact sheet, so that moisture, such as heat and sweat, generated from the warming agent contact portion of the wearer's skin passes through the skin contact sheet. Therefore, it is difficult to reach the inside of the warm-feeling sheet and furthermore, the fixed part of the warm-feeling sheet, so that the fixed part is less affected by moisture due to heat and sweat, etc. it gets difficult

[Mode 8]

The warm-feeling sheet according to Aspect 7, wherein the air permeability of the intermediate layer is higher than the air permeability of the dressing abutment sheet.

In the warming sheet, since the air permeability of the intermediate layer is higher than the air permeability of the clothing contact sheet, the solvent contained in the warming composition passes through the skin contact sheet and moves to the outside, so that the fixing part is difficult to be affected by the solvent. , when disposing of the warm feeling sheet, it becomes difficult for the fixing part to remain on the garment. In addition, when a warming agent generates heat and moisture such as sweat from a part of the wearer's skin that has been in contact with the warming agent, the heat and moisture such as sweat pass through the clothing contact sheet. Since it is difficult to reach the fixing portion, the fixing portion is less likely to be affected by the heat and moisture such as sweat, and when the warm-sensitive sheet is discarded, the fixing portion is less likely to remain on the garment.

[Aspect 9]

The warm-sensitive sheet according to Aspect 7 or 8, wherein the thermal conductivity of the intermediate layer is lower than the thermal conductivity of the garment facing sheet.

In the above-mentioned warm-sensitive sheet, since the thermal conductivity of the intermediate layer is lower than that of the wearing abutment sheet, heat generated from the warming agent-contacting portion of the wearer's skin passes through the skin-contacting sheet and the intermediate layer to reach the fixed part of the warm-sensitive sheet Since it is difficult, it becomes difficult for the fixing part to be affected by the solvent, moisture, etc., and it becomes difficult for the fixing part to remain on the clothes when the warm feeling sheet is discarded.

[Mode 10]

The warming sheet according to any one of Aspects 1 to 9, wherein the warming composition and the fixing part are disposed at positions overlapping each other in a thickness direction of the warming sheet.

In the above-mentioned warm-sensitive sheet, since the warming composition and the fixing part are disposed at overlapping positions in the thickness direction of the warming-sensitive sheet, it is easy to keep the warming composition in contact with the wearer's skin. hard to do

[Mode 11]

The warming sheet according to any one of aspects 1 to 10, wherein the solvent is selected from the group consisting of water, alcohol and fats and oils, and any combination thereof.

In the warming sheet, since the solvent is selected from a predetermined group, the warming agent can quickly impart a feeling of warmth to the wearer's skin.

The warm-feeling sheet of the present disclosure will be described in detail below.

1 to 6 illustrate an individual packaging body 3 of a warming-sensitive sheet in which the warming-sensitive sheet 1 according to one of the embodiments of the present disclosure (hereinafter, referred to as "first embodiment") is individually wrapped. is a drawing for Specifically, Fig. 1 is a perspective view of an individual package 3 of a warm-sensitive sheet. 2 is a perspective view of the warmth sheet 1 . 3 and 4 are a plan view and a rear view of the warming sheet 1, respectively. 5 is an exploded perspective view of the warmth sheet 1 . 6 is a view for explaining a wearing state of the warmth sheet 1 . Hereinafter, the "individually packaged body of the warm-sensitive sheet" may only be referred to as an "individually packaged body".

A warming sheet 1 according to the first embodiment includes a liquid holding property and liquid permeable skin contact sheet 7, an intermediate layer 9, a liquid impervious clothing contact sheet 11, and a warming sheet A fixing part 13 for fixing (1) to the garment, and a release sheet 15 for temporarily fixing the fixing part 13 are provided in that order, in the longitudinal direction (L), in the width direction (W) and It has a thickness direction (T). The skin-contacting sheet 7 contains a warming composition (not shown) on the entire surface of the skin-contacting sheet 7 . Moreover, the skin-contacting sheet 7 has the skin-contacting surface 31 and the skin-non-contacting surface 33. As shown in FIG.

In the warm-sensitive sheet 1, each of the skin-facing sheet 7, the intermediate layer 9, the liquid-impervious clothing abutment sheet 11, and the release sheet 15 is in the planar direction (longitudinal direction ( L) and the shape of the outer edges in the width direction (W)) are the same, the skin abutting sheet 7, the intermediate layer 9, the liquid impervious clothing abutting sheet 11, and the release sheet ( 15) are stacked so that their outer edges overlap in the thickness direction (T).

The warm-sensitive sheet 1 is provided with a folding axis F extending parallel to the width direction W at the center in the longitudinal direction L. Further, in the individual package body 3, the warm-feeling sheet 1 is opened with the skin-facing surface 31 of the skin-facing sheet 7 on the inside of the folding axis F as a reference, and is then packaged. It is wrapped in a sheet (5).

The fixing portion 13 is composed of a plurality of fixing portion portions 14 . Each of the plurality of fixing portions 14 extends in the width direction W and reaches both ends of the warm-sensitive sheet 1 in the width direction W. As shown in FIG. The plurality of fixing portions 14 are arranged at predetermined intervals in the longitudinal direction L.

The release sheet 15 has the same shape as the outer edge of the clothing abutment sheet 11, and is arranged so as to cover the entirety of the fixing portion 13 (the plurality of fixing portion portions 14).

As shown in FIG. 1 , the thermal sensation sheet 1 is wrapped in a packaging sheet 5 in a state in which it is folded in two to form an individual packaging body 3 . Specifically, the individual package 3 includes a thermal sensation sheet 1 folded in two with the skin abutting surface 31 of the skin abutting sheet 7 as a reference, with respect to the folding axis F as a reference, It is formed by sandwiching two packaging sheets 5 and providing a seal portion 101 on the peripheral edge of the two packaging sheets 5 .

The wearer opens the individual package 3 from the cutout 103 of the individual package 3 of the warm-sensing sheet, takes out the warm-sensitive sheet 1 from the individual package 3, and removes the warm-sensing sheet 1 from the warm-sensitive sheet. The release sheet 15 is peeled off. Next, as shown in FIG. 6 , the wearer fixes the fixing part 13 of the warm feeling sheet 1 to the clothing 21 , specifically, the inner surface of the shorts, and the skin abutting surface of the warm feeling sheet 1 . In the state where the 31 is in contact with the wearer's skin, the warm feeling sheet 1 is used.

The warm-sensitive sheet 1 has, as shown in FIGS. 3 and 4 , a peripheral portion 25 that is an area within a predetermined distance range from the outer peripheral edge 23 of the warm-sensitive sheet 1 . The warm-sensitive sheet 1 does not have an embossed portion in the peripheral portion 25 . By doing so, it is difficult for the wearer to feel the hardness on the peripheral portion 25 of the warm-sensitive sheet 1 when wearing the warm-sensitive sheet 1 and during use of the warm-sensitive sheet 1, so that the warm-sensitive sheet 1 is Both the initial stage and the time of use WHEREIN: It is excellent in wearing comfort.

A warming composition (not shown) is coated on the entire surface including the peripheral portion 25 of the skin-facing sheet 7 of the warming sheet 1 . In other words, the warming sheet 1 includes a warming composition (not shown) on the peripheral edge portion 25 . By doing so, the warming composition can efficiently activate the TRP channel of the warming agent contact portion of the wearer's skin to which the warming agent is in contact, thereby efficiently imparting a feeling of warmth to the wearer.

The warm-sensitive sheet 1 does not contain a heating agent. In a heating sheet containing a heating agent, for the purpose of continuing to keep the heating agent in contact with the wearer's skin, it is common that the fixing part is disposed at a position overlapping the heating agent and the heating agent in the thickness direction of the heating sheet, and under the influence of the heating agent, The temperature of the fixing portion rises, and the fixing portion is liable to soften. Therefore, when the heating sheet is finished using the heating sheet and the heating sheet is removed from the clothing, the softened fixing portion is likely to remain on the clothing.

On the other hand, in the warming sheet 1 according to the first embodiment, since the warming sheet 1 itself does not generate heat, it is difficult for the fixing part 13 of the warming sheet 1 to be softened, so that the use of the warming sheet 1 is reduced. After finishing, when the warm-feeling sheet 1 is removed from the garment 21 , the fixing portion 13 of the warm-feeling sheet 1 hardly remains on the garment 21 .

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

The TRP channel to be activated by the thermosensitizer may include a human TRP channel.

Examples of the warming agent include capsicoside, capsaicin, capsaicinoids (dihydrocapsaicin, nordihydrocapsaicin, homodihydrocapsaicin, homocapsaicin, nonivamide, etc.), capsanthin, benzyl nicotinate, Nicotinic acid β-butoxyethyl, N-acylvanillamide, nonanoic acid vanillylamide, polyhydric alcohol, red pepper powder, red pepper tincture, red pepper extract, nonanoic acid vanillyl ether, vanillyl alcohol alkyl ether derivatives ( For example, vanillyl ethyl ether, vanillyl butyl ether, vanillyl pentyl ether, vanillyl hexyl ether), isovanilyl alcohol alkyl ether, ethyl vanillyl alcohol alkyl ether, veratryl alcohol derivatives, substituted benzyl alcohol derivatives, substituted benzyl alcohol alkyl ethers, vanillin propylene glycol acetal, ethyl vanillin propylene glycol acetal, ginger extract, ginger oil, gingerol, gingerron, and any combination thereof.

It is preferable that the said warming agent is a plant-derived compound from a viewpoint of a wearer's relief.

The warming composition contains preferably 0.0001 to 5.0 mass%, more preferably 0.0005 to 3.0 mass%, still more preferably 0.1 to 1.0 mass%, and still more preferably 0.3 to 0.7 mass% of the warming agent. do. It is in terms of the effect of the warming agent.

Examples of the solvent include water, alcohol and oil, and any combination thereof. The warming composition contains the solvent in a proportion of preferably 50.0 to 99.9 mass%, more preferably 90.0 to 99.9 mass%. By doing so, at the time of use of the warm feeling sheet, the wearer tends to feel the warm feeling from the initial stage after wearing and over a long period of time.

Examples of the alcohol include lower alcohols such as methanol, ethanol, ethylene glycol, and glycerin, and higher alcohols such as caprylic alcohol, lauryl alcohol and myristyl alcohol. As said fats and oils, fatty acid esters, such as a triglyceride, natural oils, such as palm oil and linseed oil, etc. are mentioned.

The warming composition may contain, in addition to the above-described warming agent and solvent, at least one other component as shown below within a range that does not impair the effect of imparting a feeling of warmth to the wearer.

As said at least 1 sort(s) of another component, silicone oil, silicone, silicone resin etc. are mentioned, for example.

As said at least one other component, for example, antioxidant, for example, BHT (2,6-di-t-butyl-p-cresol), BHA (butylated hydroxyanisole), propyl gallate, etc. can be heard

The at least one other component may include, for example, a vitamin such as a natural vitamin or a synthetic vitamin. As said vitamin, 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 , vitamins Vitamin C, such as _B12 , is mentioned.

Examples of the vitamins 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 the like, and peptides.

The at least one other component includes, for example, zeolites, such as natural zeolites, such as chemite, zeolite, zeolite, natrolite, zeolite, and tomsonite, and synthetic zeolites. .

Examples of the at least one other component include cholesterol, hyaluronic acid, lecithin, ceramide, placenta, collagen, elastin, squalane, petrolatum, and trehalose.

Moreover, as said at least 1 sort(s) of another component, a pharmaceutical, for example, a skin astringent agent, an anti-acne agent, an anti-wrinkle agent, an anti-cellulite agent, a whitening agent, an antibacterial agent, an anti-fungal agent, etc. are mentioned, for example.

Examples of the skin astringent include oil-soluble skin astringents such as zinc oxide, aluminum sulfate, and tannic acid, such as oil-soluble polyphenols. Examples of the oil-soluble polyphenols include natural oil-soluble polyphenols, for example, barley extract, red pepper extract, juniper beard extract, chamomile extract, burdock extract, sage extract, chestnut extract, barley tree extract, birch extract, horsetail. extracts, sage extracts, sage extracts, hand walnut extracts, hibiscus extracts, loquat leaf extracts, linden extracts, hops extracts, horse chestnut extracts, yiin extracts, 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, theobromine, and the like.

Examples of the whitening agent include niacinamide, kojic acid, arbutin, glucosamine and derivatives, phytosterol derivatives, ascorbic acid and derivatives thereof, and mulberry extract and placental extract.

Moreover, as said at least 1 type of other component, an anti-inflammatory component, a pH adjuster, an antibacterial agent, a moisturizing agent, a fragrance|flavor, a pigment, dye, a pigment, a plant extract, etc. are mentioned, for example. As said anti-inflammatory component, For example, a synthetic anti-inflammatory agent, such as a natural anti-inflammatory agent, for example, peony, gold leaf, red pepper greens, chamomile, licorice, sagebrush, mugwort, perilla extract, for example, allantoin, glycyrrhizic acid Dipotassium etc. are mentioned.

As said pH adjuster, what is for maintaining skin in weak acidity, for example, malic acid, succinic acid, citric acid, tartaric acid, lactic acid, etc. are mentioned.

As said pigment, titanium oxide is mentioned, for example.

The warming composition and the warming sheet do not contain a heating agent. By doing so, the warm-feeling sheet itself does not generate heat, so that the fixed part of the warm-sensitive sheet is difficult to soften, and when the warm-sensitive sheet is removed from the garment after the use of the warm-feeling sheet is finished, the fixed part of the warm-feeling sheet is less likely to remain on the garment.

The heat generating agent is not particularly limited as long as the heat generating agent itself generates heat, for example, those using chemical energy such as heat of oxidation of metal powder (for example, iron powder), heat of neutralization of acids and alkalis, and heat of hydration of inorganic salts. can

The warming composition and the warming sheet may contain a so-called cooling agent, for example, an agonist for TRPM8 receptor or TRPA1 receptor.

In the warming sheet of the present disclosure, the warming composition has a basis weight of the warming agent, preferably 0.001 to 10 g/m2, more preferably 0.003 to 5 g/m2, still more preferably 0.01 to 2.5 g/m2, and even more preferably It is included in a basis weight such that it becomes 0.05-1.5 g/m2. It is from the viewpoint of giving warmth to the wearer.

When the warming sheet of the present disclosure does not include an additional sheet between the skin facing sheet and the clothing facing sheet, the warming composition is included in the skin facing sheet. When the warming sheet of the present disclosure includes an additional sheet, for example, an intermediate layer, between the skin facing sheet and the clothing facing sheet, the above warming composition may be included in the additional sheet. From the viewpoint of imparting a warm feeling at an early stage after the use of the warming sheet is started, it is preferable that the above-mentioned warming composition is included in at least the skin-contacting sheet.

In the warm-feeling sheet of the present disclosure, the air permeability of the skin contacting sheet is preferably higher than the air permeability of the wearing contact sheet, more preferably 300 cm 3 /cm 2 /s or more, and more preferably 500 cm 3 /cm 2 /s or more. high, and more preferably at least 700 cm 3 /cm 2 /s. By doing so, since the solvent contained in the warm feeling composition moves to the outside through the skin contact sheet, the fixed part is less affected by the solvent, and when the warm feeling sheet is discarded, the fixed part is less likely to remain on the clothes. . In addition, when the warming agent generates heat from the warming agent contact portion of the wearer's skin that has been in contact with the warming agent, the heat generated from the warming agent contact portion and moisture such as sweat passes through the clothing abutment sheet Therefore, it is difficult to reach the fixing part, so that the fixing part is less affected by moisture such as heat and sweat, and when the warm-sensitive sheet is discarded, the fixing part is difficult to remain on the clothes.

The skin-contacting sheet preferably has an air permeability of 300 to 2,000 cm 3 /cm 2 /s, more preferably 500 to 1,500 cm 3 /cm 2 /s, and still more preferably 700 to 1,300 cm 3 /cm 2 /s. This is from the viewpoint of discharging the solvent contained in the warming composition from the skin contact sheet.

The clothing abutment sheet preferably has an air permeability of 0 to 500 cm 3 /cm 2 /s, more preferably 0 to 300 cm 3 /cm 2 /s, and still more preferably 0 to 50 cm 3 /cm 2 /s. This is from the viewpoint of making it difficult for the solvent included in the warming composition and moisture such as heat and sweat generated from the warming agent contact portion of the wearer's skin to reach the fixing part.

In addition, in this specification, air permeability is measured as follows using Katotech's KES-F8-AP1 air permeability tester.

(1) KES-F8-AP1 Air permeability tester and sample are left standing for 24 hours in a constant temperature and humidity room (temperature: 25±5 ℃, relative humidity: 65±5%).

(2) The air resistance value of the sample is measured at a piston speed: 2 cm/sec.

(3) The above-mentioned measurement is repeated 5 times with another sample, and the average value is employ|adopted as the ventilation resistance value R (kPa*s/m) of the sample.

(4) The air permeability resistance (R) is converted into air permeability (AP) (cm 3 /cm 2 /s) according to the following formula:

AP(cm3/cm2/s) = 12.5/R

When the warm-feeling sheet of the present disclosure further includes an intermediate layer between the skin facing sheet and the clothing facing sheet, the air permeability of the intermediate layer is preferably higher than that of the clothing facing sheet, more preferably 300 It is as high as cm 3 /cm 2 /s, more preferably 500 cm 3 /cm 2 /s or more, and still more preferably 700 cm 3 /cm 2 /s or more. By doing so, since the solvent contained in the warm feeling composition moves to the outside through the skin contact sheet, the fixed part is less affected by the solvent, and when the warm feeling sheet is discarded, the fixed part is less likely to remain on the clothes. . In addition, when the warming agent causes heat in the contact part of the wearer that is in contact with the warming agent, it is difficult for the heat and moisture such as sweat to pass through the clothing abutment sheet and reach the fixing part. The fixing part is less susceptible to the influence of moisture such as heat and sweat, and the fixing part is less likely to remain on the clothes when the warm-feeling sheet is discarded.

The intermediate layer preferably has an air permeability of 50 to 2,000 cm 3 /cm 2 /s, more preferably 100 to 1500 m 3 /m 2 /min, and still more preferably 150 to 1,300 m 3 /m 2 /min. This is from the viewpoint of discharging heat generated from the solvent contained in the warming composition and the warming agent contact portion that has been in contact with the warming agent from the skin-contacting sheet.

In the warm-feeling sheet of the present disclosure, it is preferable that the thermal conductivity of the skin-facing sheet is lower than the thermal conductivity of the clothing-butting sheet. By doing so, it is difficult for the heat generated from the warming agent contact portion of the wearer's skin to pass through the skin abutting sheet to reach the inside of the warm-sensitive sheet and furthermore the fixing part of the warming-sensitive sheet. It becomes less susceptible to influence, and when the warm feeling sheet is discarded, it becomes difficult for the fixing part to remain on the clothes.

In addition, in this specification, thermal conductivity is measured by the temperature gradient method which is a kind of a normal method.

Specifically, one side of the sample is heated with a rod made of SUS, the other side of the sample is cooled with a rod made of Cu, and a steady-state temperature gradient is provided in the thickness direction of the sample, The thermal conductivity is calculated by dividing the amount of heat transferred by the temperature difference.

When the warm-feeling sheet of the present disclosure further includes an intermediate layer as an additional sheet between the skin facing sheet and the clothing facing sheet, the thermal conductivity of the intermediate layer is preferably lower than the thermal conductivity of the clothing facing sheet. By doing so, when heat is generated from the warming agent-contacting portion of the wearer's skin, it is difficult to pass through the skin-contacting sheet and reach the inside of the warming-sensitive sheet, and furthermore, the fixing portion of the warming-sensitive sheet, so that the fixing portion of the solvent , moisture or the like, and the fixing part is less likely to remain on the garment when the warm-feeling sheet is discarded.

In the warm-sensitive sheet of the present disclosure, the material of the skin-contacting sheet is not particularly limited as long as it has liquid holding properties and liquid permeability, preferably liquid permeability to the warm-sensitive composition. For example, a nonwoven fabric, a woven fabric, a knitted fabric, etc. are mentioned, From a viewpoint of a manufacturing method, a nonwoven fabric is preferable.

As the nonwoven fabric, for example, air laid pulp, air-through nonwoven fabric, spunbond nonwoven fabric, point bonded nonwoven fabric, spunlace nonwoven fabric, needle and a needle punching nonwoven fabric, a meltblown nonwoven fabric, and a combination thereof (eg, SMS, etc.).

Examples of the fibers constituting the nonwoven fabric include natural fibers, synthetic fibers, and semi-synthetic fibers. Examples of the natural fibers include pulp fibers and regenerated cellulose fibers.

As said regenerated cellulose fiber, Rayon fiber, for example, viscose rayon obtained from viscose, polynosic and modal, copper ammonia rayon fiber obtained from copper ammonia salt solution of cellulose (also called "cupra") ; lyocell and tencel, which are obtained by an organic solvent spinning method using an organic solvent which is a mixed solution of an organic compound and water, and do not pass through a cellulose derivative, and the like.

Examples of the semi-synthetic fibers include semi-synthetic cellulose fibers, such as acetate fibers, such as triacetate fibers and diacetate fibers.

Examples of the synthetic fibers include heat-fusible fibers such as polyolefin-based polymers such as polyethylene or polypropylene; polyester-based polymers such as terephthalate-based polymers such as polyethylene terephthalate (PET), polybutylene terephthalate, polypentylene terephthalate; polyamide-based polymers such as nylon 6 or nylon 6,6; acrylic polymer; polyacrylonitrile-based polymer; or fibers formed from modified products thereof, or combinations thereof.

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

It is preferable that the said skin-contacting sheet does not have adhesiveness on the skin-contacting surface, for example, it does not have an adhesive.

In the warm-sensitive sheet of the present disclosure, the material of the dressing abutment sheet is not particularly limited as long as it has liquid impermeability, and for example, a film such as a film such as polyethylene or polypropylene, a resin film having air permeability; What bonded the resin film which has air permeability to nonwoven fabrics, such as spunbond or spunlace, multilayer nonwoven fabrics, such as SMS, etc. are mentioned.

The clothing abutment 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 sheet of the present disclosure, when the warm-feeling sheet further includes an intermediate layer as an additional sheet between the skin-facing sheet and the clothing-abutting sheet, the intermediate layer is a sheet or an absorbent material in the field of sanitary materials. can be

When the intermediate layer is a sheet, that is, an intermediate sheet, the material of the intermediate sheet may be, for example, a woven fabric, for example, a nonwoven fabric, a woven fabric, or a knitted fabric. The material of the intermediate sheet is preferably a woven fabric composed of cellulosic fibers, for example, a nonwoven fabric, a woven fabric, a knitted fabric, and the like. desirable. The intermediate sheet preferably does not contain a polymer absorbent.

When the intermediate layer is an absorbent body, the absorbent body includes a core wrap covering an absorbent core including pulp fibers and a polymer absorbent, and the core wrap comprising an absorbent core including a polymer absorbent or a polymer absorbent. The thing which covers the absorbent core, etc. are mentioned. Examples of the core wrap include the above-mentioned intermediate sheet.

The intermediate layer preferably has a basis weight of 10 to 200 g/m 2 , and more preferably 15 to 150 g/m 2 .

When the intermediate layer includes a polymer absorbent, the polymer absorbent absorbs the warming agent, solvent, and especially water of the warming composition to prevent the warming composition from acting on the skin at once, resulting in a stable, long-term, stable effect of the warming agent. can exert

In the warm-feeling sheet of the present disclosure, as the fixing part, a hot melt adhesive, for example, a rubber type such as styrene-ethylene-butadiene-styrene (SEBS), styrene-butadiene-styrene (SBS), styrene-isoprene-styrene (SIS), etc. pressure-sensitive adhesives or heat-sensitive adhesives mainly based on olefins such as linear low-density polyethylene or the like; Water-sensitive polymers (e.g., polyvinyl alcohol, carboxymethyl cellulose, gelatin, etc.) or water-swelling polymers (e.g., polyvinyl acetate, sodium polyacrylate, etc.) Adhesives etc. are mentioned.

In the first embodiment, each of the skin abutment sheet 7, the intermediate layer 9, the liquid impervious clothing abutment sheet 11, and the release sheet 15 is in the planar direction (longitudinal direction L) ) and the shape of the outer edges in the width direction (W)) were the same, but in the warm-sensitive sheet of the present disclosure, the skin-facing sheet, the intermediate layer, the liquid-impervious, the outer edge, and the release sheet 15 Each may have a different outer edge shape.

It is preferable that the warm feeling sheet of the present disclosure is packaged with a packaging sheet. Specifically, the warm-feeling sheet of the present disclosure is preferably a package in which one or a plurality of warm-feeling sheets are packaged in a packaging sheet, and more preferably an individual packaging in which one warm-sensitive sheet is packaged in a packaging sheet.

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

The warm feeling sheet of the present disclosure is a clothing fixing type in which a liquid-impermeable clothing abutment sheet has a fixing portion for fixing to the clothing on the clothing abutment surface, and the fixing portion is fixed to the inner surface of the clothing for use. . The garment is not particularly limited as long as it has a portion in direct contact with the wearer's skin, and examples include those used by fitting the wearer. Examples of the clothing include underwear (eg, shorts, shirt, bra, etc.), outerwear (eg, top, bottom), socks, gloves, scarf, face mask, and eye mask. .

The region to which the warming sheet of the present disclosure can impart a feeling of warmth is not particularly limited, and for example, the head (eg, the face, for example, the eyes), the neck, and the upper extremities (eg, Chest, abdomen, groin, back, lumbar, upper arm, forearm, hand), lower extremity (eg, thigh, calf, foot) and the like.

Example

Hereinafter, the present disclosure will be described with examples, but the present disclosure is not limited to these examples.

[Production Example 1]

The warm-sensitive sheet No. 1 according to the first embodiment was manufactured. Specifically, an air-through nonwoven fabric (basis weight: 30 g/m2) as a skin-facing sheet, an air-laid pulp (basis weight: 100 g/m2) as an intermediate layer, and a polyethylene film (basis weight: 24 g/m2) as a skin-facing sheet , a hot melt adhesive, and then, an aqueous solution containing 0.3 mass % of vanillyl butyl ether as a warm-sensitive composition was added to the entire skin-contacting sheet so that the basis weight of vanillyl butyl ether was 1.0 g/m 2 By coating as much as possible, the warm-sensitive sheet No. 1 was manufactured.

[Example 1 and Comparative Example 1]

When the warm feeling sheet No. 1 and the thermal sheet No. 1 were made to be worn by a plurality of subjects, there was an answer that the warm feeling sheet No. 1 was softer and more comfortable to wear compared to the thermal sheet No. 1 . Moreover, the response that the feeling of warmth sheet No. 1 was excellent was obtained.

1: Warm feeling sheet 3: Individual packaging
5: Packing sheet 7: Skin-to-skin sheet
9: Intermediate layer 11: Clothing abutment sheet
13: fixed portion 14: fixed portion portion
15: release sheet 21: clothing
23: outer peripheral edge 25: peripheral edge portion
31: skin abutting surface 33: skin non-contacting surface
101: seal portion 103: cut-out portion
L: longitudinal direction W: width direction
T: thickness direction F: folding axis

Claims (11)

A thermal sensation sheet comprising, in that order, a liquid holding and liquid permeable skin abutment sheet, a liquid impervious clothing abutment sheet, and a fixing unit for fixing to clothing in that order, comprising:
The warming sheet includes a warming agent that activates the TRP channel, and a warming composition including a solvent, and does not contain a heating agent;
The thermal conductivity of the skin-contacting sheet is lower than that of the wearing-abutting sheet. The method of claim 1,
The warming sheet, wherein the warming agent is an agonist for the TRPV1 receptor. 3. The method according to claim 1 or 2,
wherein the skin-contacting sheet includes the warm-sensing composition. 3. The method according to claim 1 or 2,
A warming sheet, wherein the warming composition contains the solvent in a proportion of 50.0 to 99.9 mass%. 3. The method according to claim 1 or 2,
A warm feeling sheet in which the air permeability of the skin contacting sheet is higher than the air permeability of the wearing abutting sheet. 3. The method according to claim 1 or 2,
A warm feeling sheet further comprising an intermediate layer between the skin facing sheet and the clothing facing sheet. 7. The method of claim 6,
A warm feeling sheet in which the air permeability of the intermediate layer is higher than the air permeability of the wearing abutment sheet. 7. The method of claim 6,
The thermal conductivity of the said intermediate|middle layer is lower than the thermal conductivity of the said wearing contact sheet|seat. 3. The method according to claim 1 or 2,
The warming sheet, wherein the warming composition and the fixing part are disposed at positions overlapping each other in a thickness direction of the warming sheet. 3. The method according to claim 1 or 2,
A warming sheet wherein the solvent is selected from the group consisting of water, alcohol and fats and oils, and any combination thereof. delete

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