KR102221311B1 - Warmth sheet - Google Patents

Abstract

It is an object of the present disclosure to provide a warm-sensing sheet having excellent fit both in the initial stage and during use. The warm-sensing sheet of the present disclosure has the following configuration. A warm-sensing sheet (1) comprising a liquid-holding and liquid-permeable skin-contacting sheet (7) and a liquid-impermeable clothing-abutting sheet (11) and having a thickness direction (T). A, a warm-sensing layer 17 containing a liquid warm-sensing composition containing a warm-sensing agent for activating a mammalian TRP channel and a solvent, and does not contain a heat-generating agent, and the warm-sensing sheet 1 is a warm-sensing layer ( 17) and, in the overlapping region of the warm-sensing layer overlapping in the thickness direction (T), it has a rate of change in stiffness in a predetermined direction of 4.0 or less, and the rate of change in stiffness is relative to 0h stiffness. It is a warm-sensing sheet 1 characterized by being the ratio of 3h lecture degree.

Description

Warmth sheet

The present disclosure relates to a warm sensation (溫感) sheet.

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

Japanese Patent Application Publication No. 2006-239015

In the bag for accommodating the heat generating composition described in Patent Document 1, in order to provide heat to the wearer, an oxidation reaction of a metal powder, specifically, iron powder is used. Therefore, at the time before use of the heat generating composition receiving bag, the heat generating composition receiving bag itself is hard, and when and after use of the heat generating composition receiving bag, the heat generating composition receiving bag itself becomes harder. There was a tendency, and there was a tendency that the fit was inferior.

Therefore, it is an object of the present disclosure to provide a warm-sensing sheet having excellent fit in both the initial stage and the time of use.

The present inventors include a liquid-holding and liquid-permeable skin-contacting sheet, and a liquid-impermeable clothing-abutting sheet, and as a warm-sensing sheet having a thickness direction, the warm-sensing sheet activates a TRP channel. It has a warm-sensing layer including a warm-sensing agent and a liquid warm-sensing composition containing a solvent, and does not contain a heating agent, and the warm-sensing sheet is in the overlapping region of the warm-sensing layer and the warm-sensing layer overlapping in the thickness direction. From the start of use, it has a rate of change in stiffness of 4.0 or less in a predetermined direction, and the rate of change of stiffness is relative to 0h stiffness, which is the stiffness of the warm sheet at the start of use. A warm-sensing sheet characterized by being a ratio of the 3h intensity, which is the intensity of the warm-sensing sheet after 3 hours elapsed, was discovered.

The warm-sensing sheet of the present disclosure is excellent in the feeling of wearing the warm-sensing sheet in both the initial stage and during use.

1 is a perspective view of an individual package body 3 in which a warm-sensing sheet 1 according to a first embodiment is individually packaged.
2 is a perspective view of the warm-sensing sheet 1 according to the first embodiment.
3 is a plan view of the warm-sensing sheet 1 according to the first embodiment.
4 is a rear view of the warm-sensing sheet 1 according to the first embodiment.
5 is an exploded perspective view of the warm-sensing sheet 1 according to the first embodiment.
6: is a figure for demonstrating the wearing state of the warm-sensing sheet 1.
7 is a diagram for explaining a method of measuring a press force.

[Justice]

・"Initial" and "when using" about the fit

In this specification, the term ``initial'', which is a term related to the fit of the warm-sensing sheet, refers to the feeling of wearing immediately after the warm-sensing sheet is taken out (from a package, for example, individual packaging), fixed to the clothing, and started to be used. it means.

In addition, in this specification, the term ``when used'', which is a term related to the fit of the warm-sensing sheet, is after taking out the warm-sensing sheet (from a package, for example, individual packaging), fixing it to the clothing, and starting to use the warm-sensing sheet. , After passing for a while, specifically, it means a feeling of wearing after about 3 hours.

Specifically, the present disclosure relates to the following aspects.

[Mode 1]

As a warm-sensing sheet having a thickness direction, comprising a liquid-holding and liquid-permeable skin-contacting sheet and a liquid-impermeable clothing-in contacting sheet,

The warm-sensing sheet has a warm-sensing layer comprising a warm-sensing agent for activating the TRP channel and a liquid warm-sensing composition containing a solvent, and does not contain a heating agent,

The warm-sensing sheet has a rate of change in stiffness degree in a predetermined direction of 4.0 or less in the warm-sensing layer and the heat-sensitive layer overlapping region overlapping in the thickness direction,

The warm sensation, characterized in that the rate of change of the stiffness is a ratio of the stiffness of the warm sensation sheet, which is the stiffness of the warm-sensing sheet 3 hours after the start of use, to the 0h stiffness of the warm-sensing sheet at the start of use. Sheet.

Since the warm-sensing sheet has a warm-sensing layer containing a predetermined warm-sensing composition, and the warm-sensing sheet has a rate of change in stiffness within a predetermined range in a predetermined direction in the overlapping region of the warm-sensing layer, the wearer, It is difficult to feel the hardness of the warm-sensing sheet when the warm-sensing sheet is worn, and when the body is moved during the use of the warm-sensing sheet, and the warm-sensing sheet is excellent in wearing comfort both in the initial stage and during use.

[Mode 2]

The warm-sensing sheet according to Aspect 1, wherein the warm-sensing agent is an agonist for a TRPV1 receptor.

In the warm-sensing sheet, since the warm-sensing agent is a warm-sensing agent that stimulates the TRPV1 receptor, when using the warm-sensing sheet, the wearer can feel a temperature above 43°C, which is referred to as the activation temperature threshold of the TRPV1 receptor. It is easier to feel the warmth. In addition, as a result of activating the TRPV1 receptor of the skin of the wearer at the contacting part of the warming agent by the warming agent, the contacting part of the warming agent generates heat through the sympathetic nervous system. You can increase the temperature of.

[Mode 3]

The warm-sensing sheet according to Aspect 1 or 2, wherein the warm-sensing sheet has the 0h strength of 10 mN or less.

Since the warm-sensing sheet has a predetermined 0h stiffness, it is difficult for the wearer to feel the hardness of the warm-sensing sheet when wearing or moving a body, and the warm-sensing sheet has excellent initial fit.

[Mode 4]

The warm-sensing sheet has a press force change rate of 4.0 or less at a predetermined position of the periphery of the warm-sensing sheet, and the press force change rate corresponds to 0h pressurization, which is the press force of the peripheral edge portion of the warm-sensing sheet at the time of start of use. The warm-sensing sheet according to any one of Aspects 1 to 3, which is a ratio of the 3h pressurizing force, which is the press force of the peripheral edge portion of the warm-sensitive sheet after 3 hours from the start of use.

Since the warm-sensing sheet has a predetermined rate of change of pressure force at a predetermined position of its circumferential edge, when the wearer wears the warm-sensing sheet and moves the body during use of the warm-sensing sheet, It is difficult to feel the hardness of the circumferential edge, and the warm-sensing sheet is excellent in a feeling of wearing at the beginning and during use.

[Mode 5]

The warm-sensing sheet according to Aspect 4, wherein the warm-sensing sheet has the 0h press force of 3.0 N or less.

Since the warm-sensing sheet has a predetermined 0h pressure force, it is difficult for the wearer to feel the hardness of the circumferential edge of the warm-sensing sheet when wearing or moving the body, and the warm-sensing sheet has excellent initial fit.

[Mode 6]

The warm-sensing sheet according to any one of Aspects 1 to 5, wherein the warm-sensing sheet does not have an embossed portion at its periphery.

Since the warm-sensing sheet does not have an embossed portion at its circumferential edge, it is difficult for the wearer to feel the hardness at the peripheral edge of the warm-sensing sheet when wearing the warm-sensing sheet and during use of the warm-sensing sheet. And in both of them at the time of use, the fit is excellent.

[Mode 7]

The warm-sensing sheet according to any one of Aspects 1 to 6, wherein the warm-sensing sheet includes the warm-sensing layer at the periphery thereof.

Since the warm-sensing sheet contains the warm-sensing composition at its periphery, in the planar direction of the warm-sensing sheet, the area of the warm-sensing layer with respect to the area of the skin-contacting surface of the warm-sensing sheet can be increased. You can make the size smaller.

[Mode 8]

The warm-sensing sheet according to any one of Aspects 1 to 7, wherein the skin-contacting sheet is made of a woven fabric.

In the above-described warm-sensing sheet, since the skin-contacting sheet is made of a fabric, the skin-contacting sheet has excellent tactile feel, and it is easy to hold and penetrate the warm-sensing composition, so that the warm-sensing composition can be kept in contact with the wearer's skin.

[Mode 9]

The warm-sensing sheet according to any one of Aspects 1 to 8, wherein the warm-sensing layer includes the skin-contacting sheet and the warm-sensing composition contained in the skin-contacting sheet.

In the above-described warm-sensing sheet, since the warm-sensing layer is disposed at least on the skin-contacting sheet, the warm-sensing sheet can impart warmth to the wearer early after wearing.

[Mode 10]

The warm-sensing sheet according to any one of Aspects 1 to 9, wherein the solvent is selected from the group consisting of water, alcohol, fat and oil, and any combination thereof.

In the above-described warm-sensing sheet, since the solvent is selected from a predetermined group, the warm-sensing agent can quickly impart warmth to the wearer's skin.

[Mode 11]

Individually packaged, the warm-sensing sheet according to any one of aspects 1 to 10.

Since the said warm-sensing sheet is individually packaged, it is easy to exhibit the effect mentioned above.

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

1 to 6 are views for explaining a warm-sensing sheet 1 according to one of the embodiments of the present disclosure (hereinafter, referred to as “first embodiment”). Specifically, FIG. 1 is a perspective view of a warm-sensing sheet 1 according to a first embodiment. 2 is a perspective view of the warm-sensing sheet 1. 3 and 4 are plan and rear views of the warm-sensing sheet 1, respectively. 5 is an exploded perspective view of the warm-sensing sheet 1. 6: is a figure for demonstrating the wearing state of the warm-sensing sheet 1.

As shown in Figs. 2 to 5, the warm-sensing sheet 1 according to the first embodiment has a liquid-holding and liquid-permeable skin contact sheet 7, an intermediate layer 9, and a liquid impermeable clothing. Abutting sheet 11, a fixing part 13 for fixing the warm-sensing sheet 1 to the clothing, and a release sheet 15 for temporarily fixing the fixing part 13 are provided in that order, in the longitudinal direction It has (L), a width direction (W), and a thickness direction (T). The skin-contacting sheet 7 is coated with a warm-sensing composition (not shown) on its entire surface, and the entire surface of the skin-contacting sheet 7 constitutes the warm-sensing layer 17. . In addition, in the warm-sensing sheet 1, the whole of the planar direction (length direction (L) and width direction (W)) overlaps with the warm-sensing layer 17 in the thickness direction (T). Not). Moreover, the skin contact sheet 7 has a skin contact surface 31 and a skin non-contact surface 33.

In the warm-sensing sheet 1, each of the skin contact sheet 7, the intermediate layer 9, the liquid impermeable clothing contact sheet 11, and the release sheet 15 is in a planar direction (longitudinal direction ( L) and the shape of the outer edge in the width direction (W)) are the same, the skin contact sheet 7, the intermediate layer 9, the liquid impermeable clothing contact sheet 11, and the release sheet ( 15) are stacked so that their outer edges coincide in the thickness direction (T).

The warm-sensing sheet 1 includes a folding shaft F extending parallel to the width direction W in the center of the longitudinal direction L. In addition, in the individual package body 3, the warm-sensing sheet 1 is folded with the skin-contacting surface 31 of the skin-contacting sheet 7 as the inside, based on the folding axis F, and packaging It is packaged in a sheet (5).

The fixing part 13 is composed of a plurality of fixing part parts 14. Each of the plurality of fixed portion portions 14 extends in the width direction W and reaches both ends of the warm-sensing sheet 1 in the width direction W. The plurality of fixed portion portions 14 are disposed at predetermined intervals in the longitudinal direction L.

The release sheet 15 has the same shape as the wearing abutting sheet 11 and the outer edge, and is disposed so as to cover the entire fixing portion 13 (a plurality of fixing portion portions 14).

As shown in FIG. 1, the warm-sensing sheet 1 is packaged in the packaging sheet 5 in the state of being folded in two, and the individual package body 3 is formed. Specifically, the individual package body 3 is a warm-sensing sheet 1 folded in two with the skin-contacting surface 31 of the skin-contacting sheet 7 as the inside, based on the folding axis F, It is formed by sandwiching two packaging sheets 5 and providing a seal 101 at the periphery of the two packaging sheets 5.

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

As shown in FIGS. 3 and 4, the warm-sensing sheet 1 has a peripheral edge portion 25 which is an area within a predetermined distance range from the outer peripheral edge 23 of the warm-sensing sheet 1. The warm-sensing sheet 1 does not have an embossed portion in the peripheral edge portion 25. By doing so, when the wearer wears the warm-sensing sheet 1 and during the use of the warm-sensing sheet 1, it is difficult for the wearer to feel the hardness in the peripheral edge 25 of the warm-sensing sheet 1, and the warm-sensing sheet 1, In both the initial stage and during use, the fit is excellent.

On the entire surface of the skin-contacting sheet 7 of the warm-sensing sheet 1 including the circumferential edge portion 25, a warm-sensing composition (not shown) is coated. In other words, the warm-sensing sheet 1 includes a skin-contacting sheet 7 containing a warm-sensing composition (not shown), that is, a warm-sensing layer 17 on the peripheral edge portion 25. By doing so, the warm-sensing composition can efficiently activate the TRP channel of the contact part of the warm-sensing agent in contact with the warm-sensing agent of the wearer's skin, thereby effectively imparting warm-sensing to the wearer.

The warming sheet 1 does not contain a heating agent. In a heating sheet containing a heating agent, in order to keep the heating agent in contact with the wearer's skin, the fixing portion is generally disposed at a position overlapping the heating agent in the thickness direction of the heating sheet, and under the influence of the heating agent, The temperature of the fixing part rises, and the fixing part is liable to soften. Accordingly, when the use of the heating sheet is finished and the heating sheet is removed from the clothing, the softened fixing portion is liable to remain in the clothing.

On the other hand, in the warm-sensing sheet 1, since the warm-sensing sheet 1 itself does not generate heat, the fixing portion 13 of the warm-sensing sheet 1 is difficult to soften, and the use of the warm-sensing sheet 1 is finished, and the warm-sensing sheet 1 When) is removed from the garment 21, the fixing part 13 of the warm-sensing sheet 1 is difficult to remain in the garment 21.

The warm-sensing sheet of the present disclosure is preferably 4.0 or less, more preferably 3.0 or less, still more preferably 2.0 or less, and even more preferably in the warm-sensing layer and the heat-sensing layer overlap region overlapping in the thickness direction of the warm-sensing sheet. Has a rate of change of less than 1.5. By doing so, the warm-sensing sheet is excellent in a feeling of wearing both in the initial stage and during use. In addition, although the lower limit of the rate of change of the stiffness degree does not specifically exist, for example, 0.5 and 1.0 are mentioned.

It is preferable that the said warm-sensing sheet has the above-mentioned stiffness change rate in a predetermined direction, and it is more preferable to have the above-mentioned stiffness change rate in at least one of the longitudinal direction and the width direction of the warm-sensing sheet, and In both the longitudinal direction and the width direction of the sheet, it is more preferable to have the above-described stiffness change rate. It is from the viewpoint of the feeling of wearing in the initial stage of the warm feeling sheet and in use.

The stiffness change rate refers to the ratio of the stiffness of the warm-sensing sheet at the start of use, that is, the stiffness of the warm-sensing sheet, that is, the stiffness of the warm-sensing sheet 3 hours after the start of use.

In addition, the "start of use" mentioned above means for 0 to 10 minutes after taking out the said warm-sensing sheet from a package (for example, an individual package). The above-described "after 3 hours from the start of use" means 3 hours to 3 hours and 10 minutes after the warm-sensing sheet is taken out of the package (eg, individual package).

In this specification, the stiffness (0h stiffness and 3h stiffness) of the warm-sensing sheet is measured as follows, and items not described are “6.7.4 Gurley” of JIS L 1913:2010 “General Nonwoven Test Method” Law”.

(1) In a constant temperature and humidity room (temperature: 25±5°C, relative humidity: 65±5%), Yasuda Seiki Seisakusho Corporation No. 311 Gurley type flexibility tester is prepared.

(2) In the said constant temperature and humidity room, the package body of a warm-sensing sheet is left unopened for 24 hours in a natural state.

(3) The warm-sensing sheet is taken out from the package, and a sample cut to a size of 38 mm x 25 mm (sample length direction x sample width direction) from the overlapping area of the warm-sensing layer of the warm-sensing sheet is prepared.

(4) Set the sample so that one end (6.3 mm) in the length direction of the sample (38 mm) is fixed to the chuck, and the other end (6.3 mm) is in contact with the pendulum (B). do. That is, the sample is set on the chuck so as to satisfy the conditions of L=38mm and d=25mm in the formula for the degree of stiffness.

(5) The movable arm is rotated at a constant speed, and the scale RG ₁ when the sample moves away from the pendulum B is read (first time). Next, the front and back of the sample are reversed, the sample is set in a Gurley type flexibility tester, and the scale RG ₂ when the sample moves away from the pendulum B is read (second time).

(6) Calculate the strength (mN) from the following equation.

Lecture (mN)

[Equation 1]

(7) The above measurement was repeated 5 times in total with another sample, and the average value of the lecture degree was adopted.

In addition, for 0h lecture, the measurement of lecture degree is completed within 10 minutes after opening the package, and for 3h lecture degree, measurement of lecture degree is completed within 3 hours to 3 hours and 10 minutes after opening the package.

The warm-sensing sheet of the present disclosure has a 0h stiffness of preferably 10 mN or less, more preferably 7 mN or less, still more preferably 5 mN or less, and even more preferably 3 mN or less in the overlapping area of the warm layer. By doing so, the warm-sensing sheet is excellent in the initial fit.

It is preferable that the said warm-sensing sheet has the above-described 0h stiffness in a predetermined direction, and it is more preferable that the above-described 0h stiffness is in at least one of the longitudinal direction and the width direction of the warm-sensing sheet, and In both the longitudinal direction and the width direction of the sheet, it is more preferable to have the above-described 0h stiffness. It is from the viewpoint of the initial fit of the warm feeling sheet.

The warm-sensing sheet of the present disclosure has a 3h stiffness degree of preferably 10 mN or less, more preferably 7 mN or less, still more preferably 5 mN or less, and even more preferably 3 mN or less in the overlapping area of the warm layer. By doing so, the warm-sensing sheet is excellent in a feeling of wearing in use.

It is preferable that the said warm-sensing sheet has the 3h intensity|strength degree mentioned above in a predetermined direction, and it is more preferable that it has the 3h intensity|strength degree mentioned above in at least one of the longitudinal direction and the width direction of a warm-sensing sheet, and In both the longitudinal direction and the width direction of the sheet, it is more preferable to have the above-described 3h stiffness. This is from the viewpoint of the feeling of wearing the warm-sensing sheet during use.

The warm-sensing sheet of the present disclosure preferably has a rate of change of pressure force of 4.0 or less, more preferably 3.0 or less, and still more preferably 2.0 or less. By doing so, it becomes difficult for the wearer to feel the hardness at the periphery of the warm-sensing sheet in both the initial stage and during use, and the warm-sensing sheet is excellent in a feeling of wearing.

The warm-sensing sheet preferably has the above-described press force change rate at a predetermined position of the periphery of the warm-sensing sheet, and at least one of the longitudinal direction and the width direction of the warm-sensing sheet, the above-described press-in force. It is more preferable to have a rate of change, and further preferably, at the peripheral edge portions in both the longitudinal direction and the width direction of the warm-sensing sheet, to have the above-described press force change rate. It is from the viewpoint of the feeling of wearing in the initial stage of the warm feeling sheet and in use.

In addition, the rate of change of the pressing force is the pressing force of the circumferential edge of the warm-sensing sheet at the start of use, that is, the pressing force of the circumferential edge of the warm-sensing sheet 3 hours after the start of use, for 0h pressurization, that is, 3h pressurization. Means rain.

In addition, the "start of use" mentioned above means for 0 to 10 minutes after taking out the said warm-sensing sheet from a package (for example, an individual package). The above-described "after 3 hours from the start of use" means 3 hours to 3 hours and 10 minutes after the warm-sensing sheet is taken out of the package (eg, individual package).

In this specification, the pressing force (0h pressing force and 3h pressing force) of the warm-sensing sheet is measured as follows. In addition, the method of measuring the pressing force will be described with reference to FIG. 7 as appropriate.

(1) In a constant temperature and humidity room (temperature: 25±5°C, relative humidity: 65±5%), a digital force gauge 201 (FGP-5 50N) manufactured by Nippon Densan Shinpo Co., Ltd. and an electric test stand 203 ) To prepare.

(2) In the said constant temperature and humidity room, the package body of the warm-sensing sheet is left unopened for 24 hours in a natural state.

(3) The warm-sensing sheet is taken out from the package, and the sample 205 including the peripheral edge to be measured is cut out to a size of 25 mm x 25 mm.

(4) The warm-sensing sheet is taken out from the package, and the sample 205 is inserted into two rectangular metal supports 207 arranged on the electric test stand, and fixed with screws. Further, the sample 205 is fixed so that the portion to be measured at its periphery faces upward in the vertical direction, and the sample 205 protrudes 10 mm from the metal support 207. In addition, in the sample 205, the measurement terminal 209 moving downward in the vertical direction of the measurement terminal 209 of the digital force gauge 201 and downward in the vertical direction is at the peripheral edge of the sample 205 It is set so as to be in contact with the tangent line at the part to be measured.

(5) Move the measurement terminal 209 of the digital force gauge 201 downward in the vertical direction at a speed of 30 mm/min until the sample 205 is pushed in by 1 mm, and the maximum load measured by the measurement terminal ( Record N). In addition, the measurement terminal 209 uses an annular terminal having a diameter of 11 mm.

(6) Measurements (1) to (5) are repeated with 10 other samples, and their average value is adopted as a press force.

In addition, the 0h pressurization completes the measurement of the pressurization within 10 minutes after opening the package, and the 3h pressurization completes the pressurization measurement within 3 hours to 3 hours and 10 minutes after opening the package.

The warm-sensing sheet of the present disclosure preferably has the aforementioned 0h press force of 3.0N or less, more preferably 2.0N or less, still more preferably 1.0N or less, and even more preferably 0.5N or less. By doing so, it is difficult for the wearer to feel the hardness of the circumferential edge portion of the warm-sensing sheet during wearing, and the warm-sensing sheet has excellent initial fit.

The warm-sensing sheet preferably has the above-described 0h pressing force at a predetermined position of the circumferential edge of the warm-sensing sheet, and in at least one of the longitudinal direction and the width direction of the warm-sensing sheet, the above-described 0h pressure It is more preferable to have an input, and it is still more preferable to have the above-described 0h pressing force at the peripheral edge portions in both the longitudinal direction and the width direction of the warm-sensing sheet. The warmth is from the point of view of the initial fit of the sheet.

The warm-sensing sheet of the present disclosure preferably has the above-described 3h press force of 3.0N or less, more preferably 2.0 or less, still more preferably 1.0N or less, and even more preferably 0.5N or less. By doing so, it is difficult for the wearer to feel the hardness of the circumferential edge of the warm-sensing sheet during use, and the warm-sensing sheet is excellent in a feeling of wearing during use.

The warm-sensing sheet preferably has the above-described 3h pressing force at a predetermined position of the circumferential edge portion of the warm-sensing sheet, and in at least one of the longitudinal direction and the width direction of the warm-sensing sheet, the above-described 3h pressure is applied. It is more preferable to have an input, and it is still more preferable to have the above-described 3h pressing force at the peripheral edge portions in both the longitudinal direction and the width direction of the warm-sensing sheet. This is from the point of view of the fit when using the warm-sensing sheet.

In the warm-sensing sheet of the present disclosure, the warm-sensing composition is a liquid substance containing a warm-sensing agent that activates a TRP channel and a solvent. The warming agent is not particularly limited as long as it activates the TRP channel, and examples include an agonist for a TRPV1 receptor, an agonist for a TRPV3 receptor, and the like, and an agonist for TRPV1 is preferable. This is because the TRPV1 receptor has a high activation temperature threshold exceeding 43°C, and can impart a high sense of warmth to the wearer.

The TRP channel to which the warming agent must be activated may be a human TRP channel.

Examples of the warming agent include capsicoside, capsaicin, capsaicinoids (dihydrocapsaicin, nordihydrocapsaicin, homodihydrocapsaicin, homocapsaicin, nonibamide, etc.), capxanthine, 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 derivative ( For example, vanillyl ethyl ether, vanillyl butyl ether, vanillyl pentyl ether, vanillylhexyl ether), isovanillyl alcohol alkyl ether, ethyl vanillyl alcohol alkyl ether, veratryl alcohol derivative, substituted benzyl Alcohol derivatives, substituted benzyl alcohol alkyl ethers, vanillin propylene glycol acetal, ethyl vanillin propylene glycol acetal, ginger extract, ginger oil, gingerol, gingerone, and any combination thereof.

It is preferable that the said warm-sensing agent is a plant-derived compound from a viewpoint of the comfort of a wearer.

The warming composition contains the warming agent, 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 even more preferably 0.3 to 0.7 mass% do. It is in terms of the effectiveness of the warmth.

Examples of the solvent include water, alcohol and fat and oil, and any combination thereof. The warm-sensing composition contains the solvent in a ratio of preferably 50.0 to 99.9 mass%, more preferably 90.0 to 99.9 mass%. By doing so, when using the warm-sensing sheet, it is easy for the wearer to feel the warmth 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 capryl alcohol, lauryl alcohol, and myristyl alcohol. Examples of the fats and oils include fatty acid esters such as triglycerides, and natural oils such as palm oil and linseed oil.

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

Examples of the at least one other component include silicone oil, silicone, and silicone resin.

As the at least one other component, for example, antioxidants such as BHT (2,6-di-t-butyl-p-cresol), BHA (butylated hydroxyanisole), propyl molybdenum, etc. Can be lifted.

As the at least one other component, for example, a vitamin, for example, a natural vitamin or a synthetic vitamin may be mentioned. Examples of the vitamins include water-soluble vitamins, such as vitamin B group, such as vitamin B ₁ , vitamin B ₂ , vitamin B ₃ , vitamin B ₅ , vitamin B ₆ , vitamin B ₇ , vitamin B ₉ , vitamin Vitamin C, such as B _{12, can be 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 contain derivatives thereof.

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

Examples of the at least one other component include zeolites, such as natural zeolites, such as parangite, neungseolite, pyritelite, natrolite, fast 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, trehalose, and the like.

In addition, examples of the at least one other component include drugs such as skin astringent agents, anti-acne agents, anti-wrinkle agents, anti-cellulite agents, whitening agents, antibacterial agents, and anti-fungal agents.

Examples of the skin astringent agent include zinc oxide, aluminum sulfate, tannic acid, and the like, and oil-soluble skin-astringent agents such as oil-soluble polyphenols. Examples of the oil-soluble polyphenols include natural oil-soluble polyphenols, for example, barley extract, red pepper sprout extract, sweet beard extract, chamomile extract, burdock extract, salvia extract, basswood extract, barley tree extract, birch extract, horsetail Extract, sage extract, sage extract, hand-made walnut extract, hibiscus extract, loquat leaf extract, bodhi tree extract, hop extract, maronier extract, and uiyiin extract.

Examples of the anti-acne agent include salicylic acid, benzoyl peroxide, resorcinol, sulfur, erythromycin, and zinc.

Examples of the anti-wrinkle agent include lactic acid, salicylic acid, salicylic acid derivative, 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 Morus extract and placenta extract.

Further, examples of the at least one other component include an anti-inflammatory component, a pH adjuster, an antibacterial agent, a moisturizing agent, a fragrance, a colorant, a dye, a pigment, a plant extract, and the like. Examples of the anti-inflammatory component include natural anti-inflammatory agents, such as peonies, gold, red pepper sprouts, chamomile, licorice, walnut leaves, mugwort, perilla extract, etc. Dipotassium, etc. are mentioned.

Examples of the pH adjusting agent include those for maintaining the skin in a weakly acidic state, such as malic acid, succinic acid, citric acid, tin acid, and lactic acid.

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

The warm-sensing composition and the warm-sensing sheet do not contain a heating agent. By doing so, the warm-sensing sheet is less likely to become hard, and the fit is excellent both in the initial stage and during use. In addition, when the warm-sensing sheet has a fixed portion, the fixed portion of the warm-sensing sheet itself does not generate heat, so it is difficult to soften the fixed portion of the warm-sensitive sheet. It is difficult to remain in clothes.

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

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

In the warm-sensing sheet of the present disclosure, the basis weight of the warm-sensing agent is preferably 0.001 to 10 g/m 2, more preferably 0.003 to 5 g/m 2, still more preferably 0.01 to 2.5 g/m 2, and even more preferably It is included in a basis weight equal to 0.05~1.5g/m2. It is from the perspective of giving the wearer a sense of warmth.

In the warm-sensing sheet of the present disclosure, the warm-sensing layer is not particularly limited as long as it contains a warm-sensing composition, but the warm-sensing layer includes, for example, a skin-contacting sheet and a warm-sensing composition contained in the skin-contacting sheet, and When the sheet includes an intermediate layer between the skin contact sheet and the wear contact sheet, the warm-sensing layer may include an intermediate layer and a warm-sensing composition contained in the intermediate layer.

It is preferable that the warm-sensing sheet of the present disclosure does not have an embossed portion formed by embossing a sheet constituting the warm-sensing sheet, for example, a skin contact sheet and/or a wear contact sheet, at the periphery thereof. By doing so, it is difficult for the wearer to feel the hardness at the circumferential edge of the warm-sensing sheet both when wearing the warm-sensing sheet and during use of the warm-sensing sheet, and the warm-sensing sheet is excellent in wearing comfort both in the initial stage and during use. .

In addition, in the present specification, the circumferential edge portion is a distance of preferably 10% or less, more preferably 5% or less, and still more preferably 3% or less in the longitudinal direction of the warm-sensing sheet from the outer peripheral edge of the warm-sensing sheet. Means the area in. For example, when the warm-sensing sheet has a length in the length direction of 150 mm, the peripheral edge portion is preferably 15 mm or less, more preferably 7.5 mm or less, and even more preferably from the outer peripheral edge of the warm-sensing sheet. Means the area at a distance of less than 4.5mm.

It is preferable that the warm-sensing sheet of the present disclosure includes a warm-sensing layer at its periphery. By doing so, in the planar direction of the warm-sensing sheet, the area of the warm-sensing layer with respect to the area of the skin-contacting surface of the warm-sensing sheet can be increased, and further, the size of the warm-sensing sheet can be reduced.

In the warm-sensing sheet of the present disclosure, the material for the skin-contacting sheet is not particularly limited as long as it has liquid holdability and liquid permeability, and preferably liquid permeability to the warm-sensing composition, and, for example, a fabric such as a nonwoven fabric, Woven fabrics, knitted fabrics, and the like, and nonwoven fabrics are preferred from the viewpoint of a manufacturing method.

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

The fibers constituting the nonwoven fabric include, for example, natural fibers, synthetic fibers, and semi-synthetic fibers. As said natural fiber, pulp fiber and regenerated cellulose fiber are mentioned.

As the regenerated cellulose fiber, rayon fiber, for example, viscose rayon obtained from viscose, polynosic and modal, copper ammonia rayon fiber obtained from a copper ammonia salt solution of cellulose (also referred to as ``cupra'') ); Lyocell, tencel, etc. obtained by spinning an organic solvent using an organic solvent which is a mixed solution of an organic compound and water, and not passing through a cellulose derivative.

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 polymers such as terephthalate polymers such as polyethylene terephthalate (PET), polybutylene terephthalate, polypentylene terephthalate; Polyamide polymers such as nylon 6 or nylon 6,6; Acrylic polymer; Polyacrylonitrile 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.

In the warm-sensing sheet of the present disclosure, the material of the wear-in contact sheet is not particularly limited as long as it has liquid impermeability from the viewpoint of preventing the warm-sensing composition from moving to the wear, and for example, a film such as polyethylene, poly A film such as propylene, a resin film having air permeability, a resin film having air permeability bonded to a nonwoven fabric such as spunbond or spunlace, and a multilayer nonwoven fabric such as SMS may be mentioned.

The wearing abutting sheet preferably has a basis weight of 10 to 50 g/m 2, and more preferably 15 to 30 g/m 2.

The warm-sensing sheet of the present disclosure may further include an intermediate layer between the skin contact sheet and the wear contact sheet, and the intermediate layer may be a sheet or an absorber in the field of hygiene materials.

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, such as a nonwoven fabric, a woven fabric, or a knitted fabric. The material of the intermediate layer is preferably a woven fabric composed of cellulose fibers, for example, a nonwoven fabric, a woven fabric, a knitted fabric, etc., and from the viewpoint of holding the warm composition, a tissue composed of pulp fibers, airlaid pulp, etc. are more preferable. . It is preferable that the intermediate sheet does not contain a polymer absorbent.

When the intermediate layer is an absorbent, the absorbent includes a core wrap covering an absorbent core containing pulp fibers and a polymer absorbent, and the core wrap comprising an absorbent core containing a polymer absorbent or a polymer absorbent. What covers the absorbent core, etc. are mentioned. Examples of the core wrap include the above-described 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 contains a polymeric absorbent, the polymeric absorbent absorbs the warmth and solvent of the warm-sensing composition, especially water, and prevents the warm-sensing composition from acting on the skin at once, so that it can be used for a long time and stably. It can exert an effect.

In the case where the warm-sensing sheet of the present disclosure includes a fixing portion for fixing to the clothing in a liquid-impermeable clothing contact sheet, the fixing portion is a hot melt adhesive, for example, styrene-ethylene-butadiene-styrene (SEBS). ), styrene-butadiene-styrene (SBS), styrene-isoprene-styrene (SIS), etc., or olefin-based, such as linear low-density polyethylene, as a main body pressure-sensitive adhesive or thermal sensitivity (heat-sensitive) type adhesive; Water-sensitive made of water-soluble polymers (eg, polyvinyl alcohol, carboxylmethylcellulose, gelatin, etc.) or water-swelling polymers (eg, polyvinyl acetate, sodium polyacrylate, etc.) And adhesives.

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

It is preferable that the warm-sensing sheet of the present disclosure is packaged with a packaging sheet. Specifically, the warm-sensing sheet of the present disclosure is preferably a packaging body in which one or more warm-sensing sheets are packaged with a packaging sheet, and more preferably an individual packaging body in which one warm-sensing sheet is packaged with 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 packaging body, and as a material of the airtight layer, for example, an ethylene vinyl alcohol copolymer, a vinylidene chloride polymer, for example Examples include vinylidene chloride methyl acrylate copolymer, polyvinyl alcohol, nylon such as nylon 6, aluminum foil, alumina, silica, etc. deposited on a base film (polyethylene terephthalate, etc.).

The warm-sensing sheet according to one of the embodiments of the present disclosure includes a fixing part for fixing to the clothing on the wearing abutting surface of the liquid impermeable clothing abutting sheet, and fixing the fixing part to the inner surface of the clothing. It may be a fixed type of clothing to be used.

The clothing is not particularly limited as long as it has a portion directly in contact with the wearer's skin, and may be used by fitting the wearer. Examples of the clothing include underwear (eg, shorts, shirts, bras, etc.), outerwear (eg, tops, bottoms), socks, gloves, mufflers, face masks, eye masks, and the like.

In addition, when the warm-sensing sheet is a fixed type, it is preferable that the skin-contacting sheet does not have adhesiveness on the skin-contacting surface, for example, no adhesive.

The warm-sensing sheet according to another embodiment of the present disclosure has adhesiveness on the skin-contacting surface of the skin-contacting sheet, and is used by attaching the skin-contacting surface of the skin-contacting sheet to the skin of the wearer. It may be a skin fixation type.

The warm-sensing sheet according to still another embodiment of the present disclosure may be a body-mounting type in which a warm-sensing sheet is mounted on a wearer's body and used by the mounting hole for mounting on the body.

As the mounting tool, for example, a band-like material, such as a string, such as an earring string, may be mentioned.

Examples of the body to which the warm-sensing sheet is mounted include a head, an ear, a neck, an upper arm, an forearm, a hand, a thigh, a knee, a calves, and a leg.

In addition, when the warm-sensing sheet is a body-mounting type, it is preferable that the skin-contacting sheet does not have adhesiveness on the skin-contacting surface, for example, does not have an adhesive.

The part of the present disclosure to which warmth can be imparted is not particularly limited, and for example, the head (for example, the face, for example, the eyes), the neck, and the upper limb (for example, Chest, abdomen, groin, back, lumbar, upper arm, forearm, hand, lower limbs (e.g., thigh, calf, foot), etc. I can.

Example

Hereinafter, although an example is given and this indication is demonstrated, this indication is not limited to these examples.

[Production Example 1]

Warm sheet No. 1 according to the first embodiment was produced. Specifically, an air-through nonwoven fabric (basis weight: 30 g/m2) as a skin contact sheet, airlaid pulp (basis weight: 100 g/m2) as an intermediate layer, and a polyethylene film (basis weight: 24 g/m2) as a wear contact sheet were used. , A hot-melt adhesive was sandwiched and bonded, and then, as a warm-sensing composition, an aqueous solution containing 0.3% by mass of vanillyl butyl ether was added to the entire skin contact sheet, and the basis weight of vanillyl butyl ether was 1.0 g/m 2 By coating as much as possible, the warm-sensing sheet No.

[Example 1]

The measurement method specified in the present specification for the rate of change in strength of the warm-sensing sheet No.1, 0h strength (mN), 3h strength (mN), press force change rate, 0h press force (N) and 3h press force (N). Measured according to. Table 1 shows the results.

[Comparative Example 1]

As the heating sheet No. 1, a commercially available heating sheet was prepared. The heating sheet No. 1 is a type of heating sheet that is fixed to the inner surface of the clothing and used, and the heating sheet itself generates heat by the heat of oxidation of iron powder. The stiffness change rate, 0h stiffness (mN), 3h stiffness (mN), press force change rate, 0h press force (N), and 3h press force (N) of the heating sheet No. 1 were measured. Table 1 shows the results.

[Table 1]

When a plurality of subjects were made to wear the warm sheet No. 1 and the heat sheet No. 1, there was a reply that the warm sheet No. 1 was superior to the heat sheet No. 1 in a comfortable fit. Moreover, the warm feeling sheet No. 1 obtained the answer that it was excellent in the warm feeling.

1: Warm sheet 3: Individual package
5: Packing sheet 7: Skin contact sheet
9: Intermediate layer 11: Clothing contact sheet
13: fixing part 14: fixing part part
15: release sheet 17: warm-sensing layer
21: clothing 23: outer circumference edge
25: peripheral edge 31: skin contact surface
33: skin non-contact surface 101: seal portion
103: notch 201: digital force gauge
203: electric test stand 205: sample
207: metal support 209: measurement terminal
L: longitudinal direction W: width direction
T: thickness direction F: folding axis

Claims (17)

A liquid-holding and liquid-permeable skin-contact sheet, a liquid-impermeable clothing-abutting sheet, and an absorbent body including a core wrap between the skin-contacting sheet and the dressing-abutting sheet, and the thickness direction As a warm feeling sheet having,
The warm-sensing sheet has a warm-sensing layer comprising a warm-sensing agent for activating the TRP channel and a liquid warm-sensing composition containing a solvent, and does not contain a heating agent,
The warm-sensing sheet has a stiffness change rate of 4.0 or less in a predetermined direction in the warm-sensing layer and the heat-sensing layer overlapping region overlapping in the thickness direction,
The warm sensation, characterized in that the rate of change of the stiffness is a ratio of the stiffness of the warm sensation sheet, which is the stiffness of the warm-sensing sheet 3 hours after the start of use, to the 0h stiffness of the warm-sensing sheet at the start of use Sheet. The method of claim 1,
The warm-sensing sheet in which the absorber contains a polymer absorbent. A liquid-holding and liquid-permeable skin-contact sheet, a liquid-impermeable clothing-abutting sheet, and an absorbent body containing a polymeric absorbent between the skin-contacting sheet and the wearing-abutting sheet, and the thickness direction As a warm feeling sheet having,
The warm-sensing sheet has a warm-sensing layer comprising a warm-sensing agent for activating the TRP channel and a liquid warm-sensing composition containing a solvent, and does not contain a heating agent,
The warm-sensing sheet has a stiffness change rate of 4.0 or less in a predetermined direction in the warm-sensing layer and the heat-sensing layer overlapping region overlapping in the thickness direction,
The warm sensation, characterized in that the rate of change of the stiffness is a ratio of the stiffness of the warm sensation sheet, which is the stiffness of the warm-sensing sheet 3 hours after the start of use, to the 0h stiffness of the warm-sensing sheet at the start of use Sheet. The method according to any one of claims 1 to 3,
The warm-sensing sheet further includes an intermediate layer between the skin-contacting sheet and the wearing-abutting sheet, and the intermediate layer and the warm-sensing composition contained in the intermediate layer constitute the warm-sensing layer. The method according to any one of claims 1 to 3,
The warm-sensing sheet is configured such that the warm-sensing layer is disposed at a position corresponding to one or both of the abdomen and the groin of the wearer. The method according to any one of claims 1 to 3,
The wearing abutting sheet has a wearing abutting surface, the warm feeling sheet further includes a fixing part configured to be fixed to the clothing on the wearing abutting surface, and the wearing is an undergarment. The method according to any one of claims 1 to 3,
The skin-contacting sheet has a basis weight of 10 to 100 g/m2. The method according to any one of claims 1 to 3,
The warm-sensing sheet in which the solvent is oil. The method according to any one of claims 1 to 3,
The warm-sensing sheet, wherein the warm-sensing agent is an agonist for the TRPV1 receptor. The method according to any one of claims 1 to 3,
The warm-sensing sheet has the 0h stiffness of 10 mN or less. The method according to any one of claims 1 to 3,
The warm-sensing sheet has a pressure-force change rate of 4.0 or less at a predetermined position of the peripheral edge portion of the warm-sensing sheet, and the pressure-force change rate is the pressing force of the peripheral edge portion of the warm-sensing sheet at the start of use. The warm-sensing sheet which is the ratio of the 3h pressurization which is the pressurization of the peripheral edge portion of the warm-sensing sheet after 3 hours from the start of use to the phosphorus 0h pressurization. The method of claim 11,
The warm-sensing sheet has the 0h pressure force of 3.0 N or less. The method according to any one of claims 1 to 3,
The warm-sensing sheet includes the warm-sensing layer at the periphery thereof. The method according to any one of claims 1 to 3,
The warm-sensing sheet does not have an embossed portion at the periphery thereof. The method according to any one of claims 1 to 3,
The skin contact sheet is a warm-sensing sheet composed of a fabric. The method according to any one of claims 1 to 3,
The warm-sensing layer includes the skin-contacting sheet and the warm-sensing composition included in the skin-contacting sheet. The method according to any one of claims 1 to 3,
Individually wrapped warm sheet.

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