JP7213652B2 - lower extremity self care kit - Google Patents

Description

The present invention relates to a lower extremity self-care kit.

In recent years, an increasing number of people feel swollen feet, poor blood circulation, cold feet, etc., and feel fatigue in their feet, which is a major daily problem, especially for working women. Such symptoms are considered to be caused by lifestyle habits such as lack of exercise, aging, and long hours of standing and desk work, and various means have been tried to eliminate or alleviate these symptoms. As one of them, "self-care" that can be easily incorporated into daily life is attracting attention, and techniques for practicing this according to symptoms are being developed.

For example, Patent Literature 1 discloses that the tightening force of the calves is made lower than the tightening force of the feet and ankles so that blood circulation is inhibited and the legs are not swollen due to excessive tightening of the calves. A sock is disclosed. Further, Patent Document 2 discloses a sock or tube made of a cloth covering the ankle and calves, which gradually reduces the compressive pressure from the ankle to the calf, for preventing or reducing swelling of the lower extremities. shaped lower leg support is disclosed.

On the other hand, Patent Document 3 discloses a body cosmetic containing components such as carbon dioxide gas and a TRPV3 agonist. Such a cosmetic is made into a gel sheet and applied to a body part such as the inside of the forearm to promote blood circulation. We are trying to enhance the action.

Japanese Patent Application Laid-Open No. 2002-266107 JP-A-2007-63723 JP 2012-167061 A

However, with the socks and supporters described in Patent Documents 1 and 2, although the swelling of the lower legs is alleviated to some extent by the pressure applied to the lower legs during use, the coldness of the toes increases. It was found by the inventor of the present invention. In addition, even if the gel sheet as described in Patent Document 3 is attached to the calves, a certain effect of promoting blood circulation can be obtained when looking at the entire lower limbs, but it does not lead to the suppression of coldness of the toes. was also found by the inventor. Therefore, further improvement is desired in order to sufficiently suppress the coldness of the toes while improving the swelling of the lower legs and sufficiently enhance the self-care effect.

That is, the present invention relates to a self-care kit that is excellent in reducing swelling of the lower leg, effectively suppressing coldness of the toes, and providing excellent comfort.

Therefore, the present inventors have made intensive studies to solve the above problems, and as a result, a gel sheet for calf application containing carbon dioxide gas and water, and a lower leg attachment having a specific tensile strength covering at least a part of the lower leg When used in combination, not only can the swelling of the lower legs be synergistically improved compared to the case of using each alone, but unexpectedly, it is possible to effectively suppress the coldness of the toes. They have found that a self-care kit can be obtained that allows the wearer to experience excellent comfort.

Accordingly, the present invention provides the following (X) to (Y):
(X) Gel sheet for calf application containing carbon dioxide gas (a) and water (b) (Y) Covering at least a part of the lower leg and having a tensile strength of 0.5 to 25 N/50 mm when the covered part is stretched 200% To provide a self-care kit for lower extremities, comprising a cylindrical or bag-like lower extremity wearing body.

According to the present invention, it is possible to synergistically improve the swelling of the lower legs by using a carbon dioxide-containing calf-adhering gel sheet in combination with a lower-limb wearable body, and furthermore, reduce the swelling of the toes, which has tended to be overlooked in the past. Coldness can be effectively suppressed, and a comfortable high self-care effect can be obtained without causing an uncomfortable feeling of pressure.

The present invention will be described in detail below.
The lower leg self-care kit (hereinafter also simply referred to as "self-care kit") of the present invention comprises a calf patch gel sheet (X) containing carbon dioxide (a) and water (b). ) and a lower leg wearing body (Y) to be described later.

The gel sheet for calf application (X) constituting the self-care kit of the present invention contains carbon dioxide gas and water (b). By using the calf patch gel sheet (X) together with the lower leg attachment (Y), the effect of promoting blood circulation can be more effectively enhanced than when the calf patch gel sheet (X) is used alone. Not only can the swelling of the lower leg be further improved, but unexpectedly, it is possible to effectively suppress the coldness of the toe by effectively promoting blood circulation to the toe, which is a part away from the calf. can.

The gel sheet for calf application (X) contains carbon dioxide (a). The content of the carbon dioxide gas (a) is preferably 100 ppm or more in the total amount of the calf patch gel sheet (X) from the viewpoint of obtaining a sufficient effect of promoting blood circulation and effectively exhibiting the effect of suppressing the coldness of the toes. It is preferably 300 ppm or more, more preferably 500 ppm or more. The content of carbon dioxide gas (a) is preferably 20000 ppm or less, more preferably 10000 ppm or less, and even more preferably 3000 ppm or less, from the viewpoint of dissolving carbon dioxide gas well in water and the production cost.

The content (concentration: ppm) of carbon dioxide gas (a) contained in the gel sheet for calf application (X) can be determined by placing the gel sheet to be measured in a lidded container containing an alkaline solution and immersing it in the aqueous solution. After trapping it as a carbonate, it was again acidified with an acidic buffer solution, and then the carbon dioxide concentration of the solution at room temperature 25 ° C. was measured using a carbon dioxide gas electrode. The carbon dioxide gas concentration in the gel sheet is obtained by converting from the gel sheet volume.

The gel sheet for calf application (X), in combination with the component (a), enhances the effect of promoting blood circulation and also enhances the durability, resulting in an excellent effect of improving the swelling of the lower leg and a good feeling of use, and furthermore, the effect of improving the swelling of the feet. It is preferable to contain a TRPM8 agonist (c) from the viewpoint of satisfactorily exhibiting the effect of suppressing coldness. A TRPM8 agonist is an agonist that acts on TRPM8, which is a cold receptor among temperature-sensitive TRP channels present in the body.
Such TRPM8 agonists are not limited as long as they are compounds that activate TRPM8 channels. selected from menthyl acid, menthyl pyrrolidone carboxylic acid, ethyl menthanecarboxamide, menthane carbonyl glycine ethyl ester, menthyl ethylaminooxalic acid, menthone glycerin acetal, butylcyclohexanone, isopulegol, trimethylisopropylbutanamide, menthoxypropanediol, camphor, icilin, etc. 1 type, or 2 or more types are mentioned. Plants and essential oils such as peppermint oil, peppermint oil, spearmint oil and eucalyptus oil containing these TRPM8 agonists may also be used. Among them, it is selected from menthol, menthyl lactate, trimethylisopropylbutanamide, menthoxypropanediol, camphor and icilin from the viewpoint of exhibiting the effect of suppressing coldness of the toes and ensuring a comfortable feeling during use. 1 type or 2 types or more are preferable, and menthol is more preferable.

The content of the TRPM8 agonist (c), together with the component (a), enhances the blood circulation-promoting effect while enhancing the durability, and synergistically improves the effect of improving the swelling of the lower leg when used in combination with the lower leg mounting body (Y). 0.15% by mass or more, more preferably 0.2% by mass or more, still more preferably 0.25% by mass or more, and 0.3% by mass or more in the total amount of the gel sheet for calf attachment (X) from the viewpoint of increasing the is even more preferable. In addition, the content of the TRPM8 agonist (c) is preferably 3% by mass or less, and 2% by mass or less in the total amount of the calf patch gel sheet (X) from the viewpoint of suppressing skin irritation and maintaining a good feeling of comfort. is more preferable, and 0.7% by mass or less is even more preferable.

The gel sheet for calf application (X) contains water (b) in addition to the carbon dioxide gas (a). Such a content of water allows the carbon dioxide gas and the TRPM8 agonist to dissolve or disperse well, and the carbon dioxide gas and the TRPM8 agonist remain dissolved or dispersed in water to effectively exert the desired action on the calves to which they are attached. 60% by mass or more, more preferably 70% by mass or more, and even more preferably 75% by mass or more of the total amount of the calf patch gel sheet (X). In addition, the content of water is preferably 95% by mass or less, more preferably 92% by mass or less, based on the total amount of the gel sheet for calf patch (X), from the viewpoint of realizing a good feeling of use of the gel sheet for calf patch (X). , 90% by mass or less is more preferable.

The calf patch gel sheet (X) further enhances the effect of promoting blood circulation and effectively suppresses the coldness of the toes, while synergistically improving the swelling of the lower leg when used in combination with the lower leg attachment (Y). From the viewpoint of enhancement, an oil agent (d) can be further contained.
The oil agent (d) is not particularly limited as long as it is used in an ordinary gel sheet for application to the body, and is preferably liquid at 25°C. Here, the term “liquid” refers to fluidity at 25° C. and includes pasty.

Examples of such oil agent (d) include hydrocarbon oils having straight or branched chains such as liquid paraffin, light isoparaffin, liquid isoparaffin, squalane, and squalene; dimethylpolysiloxane, dimethylcyclopolysiloxane, and methylphenylpolysiloxane. , methylhydrogenpolysiloxane, higher alcohol-modified organopolysiloxane; monoester oils such as isopropyl myristate, isononyl isononanoate, isotridecyl isononanoate; diester oils such as neopentyl glycol dicaprate; tri(capryl/caprin) Acid) Triester oils such as glyceryl, 2-ethylhexanoate triglyceride, oleic acid triglyceride; and ether oils such as alkyl-1,3-dimethylbutyl ether. These oil agents (d) may also be of natural origin.
Among them, selected from tri(caprylic/capric) glyceryl, isopropyl myristate and isononyl isononanoate from the viewpoint of excellent compatibility with carbon dioxide gas (a) and TRPM8 agonist (c) and further enhancing the effect of promoting blood circulation. 1 or 2 or more are preferable.

The content of the oil agent (d) is preferably 0.01 to 5% by mass, more preferably 0.05 to 1% by mass, based on the total amount of the calf patch gel sheet (X), from the viewpoint of more effectively enhancing the effect of promoting blood circulation. more preferred. When the calf patch gel sheet (X) contains the TRPM8 agonist (c), the mass ratio ((c)/(d)) between the content of the oil (d) and the content of the TRPM8 agonist (c) is From the viewpoint of improving the permeability of the calf skin to which the TRPM8 agonist (c) is applied, it is preferably 0.1 to 50, more preferably 0.5 to 20.

The calf sticking gel sheet (X) retains water (b) and has sufficient gel strength while maintaining good action of carbon dioxide (a) and TRPM8 agonist (c) on the calf skin, and improving moldability. From the viewpoint of maintaining good shape retention even when used in combination with the lower leg wearable (Y), the anionic polymer for gel formation is contained, and a cross-linking agent is further contained to form a gel when the sheet is produced. It is preferred to crosslink the anionic polymer for Such an anionic gel-forming polymer can be dissolved in water and subjected to a cross-linking reaction to form a dense network cross-linked structure that serves as the basic skeleton of the gel sheet. A gel sheet formed by chemically cross-linking a gel-forming anionic polymer retains a large amount of water in its network structure and swells. Since it has less thermoplasticity than other materials, it exhibits stable shape retention over a wide range of operating temperatures.

Such gel-forming anionic polymers include, for example, polymers having carboxyl groups, sulfate groups, or phosphate groups. Specifically, poly(meth)acrylic acids, carboxyvinyl polymers and salts thereof; anionic cellulose derivatives such as carboxymethyl cellulose and carboxyethyl cellulose and salts thereof; carrageenan, alginic acid and salts thereof, anionic starch derivatives etc. Among them, at least selected from carboxymethylcellulose, carrageenan and salts thereof, from the viewpoint of obtaining a hydrous gel layer that satisfies a particularly high water retention capacity, sufficient gel strength, and flexibility that can follow the unevenness and movement of the skin. It is preferable to include one or more.

The content of the gel-forming anionic polymer is such that the high water retention capacity and the gel strength are exhibited, so that the effect of improving the swelling of the lower legs and the effect of suppressing the coldness of the toes can be effectively achieved at a high level. It is preferably 0.5 to 25% by mass, more preferably 1.5 to 10% by mass, and even more preferably 2.5 to 8% by mass based on the total amount of gel sheet (X).

As the cross-linking agent, a metal ion compound, a cationic polymer, a polyfunctional epoxy compound, or the like can be used.
Examples of metal ion compounds include oxides, hydroxides, and salts containing aluminum, magnesium, calcium, potassium, etc. Examples include aluminum hydroxide, potassium alum, aluminum sulfate, aluminum oxide, aluminum glycinate, and aluminum acetate. , aluminum lactate, aluminum stearate, hydrous aluminum silicate, aluminum metasilicate, magnesium aluminometasilicate, magnesium chloride, magnesium stearate, calcium carbonate, calcium hydroxide, kaolin, synthetic hydrotalcite, potassium hydroxide, etc. 1 type, or 2 or more types are mentioned.
When carboxymethyl cellulose or a salt thereof is selected as the gel-forming anionic polymer, metasilicic acid is used as a cross-linking agent from the viewpoint of achieving good gel shape retention and a fresh feel during use of the calf patch gel sheet (X). It is preferable to use one or more selected from aluminum ion compounds such as magnesium aluminate and aluminum hydroxide.

The content of the cross-linking agent is 0.01 to 10% by mass in the total amount of the calf patch gel sheet (X) from the viewpoint of realizing good gel shape retention and a fresh feeling of use of the calf patch gel sheet (X). It is preferably 0.05 to 5% by mass, and even more preferably 0.1 to 2% by mass. It is considered that the gel-forming anionic polymer and the cross-linking agent are cross-linked in the gel sheet. In the present invention, the amounts of the gel-forming anionic polymer and the cross-linking agent are the amounts when they exist independently.

The calf patch gel sheet (X) not only irritates the skin, but also promotes excessive dryness of the skin, especially for people with ethanol hypersensitivity, which may cause cracks in the skin. From the viewpoint of concern, it is preferable not to contain ethanol. However, although trace to small amounts (0.001% by mass or more) of ethanol may inevitably be mixed, even in such cases, the smaller the ethanol content, the better. Specifically, the content of ethanol is such that the gel sheet for calves (X) maintains blood circulation promotion without increasing the skin irritation, and has a high level of the effect of suppressing the coldness of the toes and the effect of improving the swelling of the lower legs. from the viewpoint of compatibility with the calf patch gel sheet (X), the total amount is preferably 3% by mass or less, more preferably 1% by mass or less, further preferably 0.1% by mass or less, and substantially free of ethanol. Even more preferable.

In the calf patch gel sheet (X), in addition to the above ingredients, other ingredients that are usually used in cosmetics, pharmaceuticals, etc., for example, ingredients other than the above ingredients, such as oily ingredients, powder ingredients, moisturizers, and highly water-soluble Molecules, thickeners, film agents, UV absorbers, sequestering agents, alcohols, sugars, amino acid derivatives, organic amines, resin emulsions, blood circulation promoters, skin nutrients, vitamins, antioxidants, oxidation Preventive aids, preservatives, pigments, perfumes, etc. can be appropriately contained according to their uses, and these agents can also be used for other purposes. good.

In addition, as a fragrance, for example, "Synthetic Perfume Chemistry and Product Knowledge", written by Genichi Indo, published by Chemical Daily in 1996; "Perfume and Flavor Chemicals", written by STEFENARCTAMDER , 1969, etc., can be preferably used.

The thickness of the gel sheet for calf application (X) is preferably 0.5 mm or more, more preferably 0.7 mm or more, more preferably 0.8 mm, from the viewpoint of suppressing coldness of the toes and improving swelling of the lower legs due to the effect of promoting blood circulation. The above is more preferable. In addition, the thickness of the gel sheet for calf application (X) is determined from the viewpoint of ease of application to the calves, and from the viewpoint of enhancing a sense of unity even when used in combination with the lower limb attachment (Y) and avoiding an uncomfortable feeling of wearing. , is preferably 3 mm or less, more preferably 2 mm or less, and even more preferably 1.5 mm or less.

The surface area of the calf-adhering gel sheet (X), which is attached to the calves, synergistically enhances the effect of reducing swelling in the lower legs and effectively exerts the effect of suppressing the coldness of the toes, in combination with the lower-leg attachment (Y). From the point of view, it is preferably 50 to 300 cm ² , more preferably 100 to 200 cm ² . In addition, a plurality of calf-adhering gel sheets (X) may be used by being affixed, and in this case, the total surface area of the calf-adhering gel sheets (X) should be within the above range. good. In addition, the ratio of the surface area ((X) area) of the inner wall surface area ((Y) area) covering the lower leg of the lower leg attachment (Y) to the surface area ((X) area) of the gel sheet for calf attachment (X) to be attached to the calf (( X) area / (Y) area) is preferably 0.05 to 0.5 from the viewpoint of effectively exhibiting the effect of suppressing the coldness of the toes while synergistically enhancing the effect of improving swelling of the lower leg, and more It is preferably 0.1 to 0.25, more preferably 0.17 to 0.25.

In addition, the gel sheet for calf attachment (X) may be laminated on the sheet base material layer from the viewpoint of ensuring shape retention and facilitating production. As a constituent material, woven fabric, non-woven fabric, woven fabric, synthetic resin film, waterproof paper, etc. can be used. More specifically, synthetic materials such as nylon, polypropylene, polyester, polyethylene, polystyrene, polyurethane, and polyolefin can be used. Examples include woven or non-woven fabrics such as fibers, natural fibers such as silk, cotton, hemp, rayon, and collagen; sheets of nylon, polypropylene, polyester, polyethylene, polyurethane, and the like; and thin film sheets of pullulan, starch, and the like. The thickness of these sheet base layers is about 0.05 to 2.0 mm, and the surfaces of the sheet base layers may be subjected to hydrophilic treatment or hydrophobic treatment.

In addition, from the viewpoint of ensuring shape retention and manufacturing, the gel sheet for calf attachment (X) has a A release layer (sheet, film, etc.) can also be laminated. The material constituting such a release layer (sheet, film, etc.) is not particularly limited, and examples thereof include polyester films such as polyethylene terephthalate film and polybutylene terephthalate film; polyolefin films such as polyethylene film and polypropylene film; kraft paper and glassine. Laminated paper in which plastic such as polyethylene is laminated on paper such as paper or high-quality paper can be used. Further, one side of the release layer, that is, the side on which the gel sheet for calf application (X) is to be laminated, is more preferably subjected to hydrophobizing treatment such as silicone treatment.
More specifically, commercially available products such as Purex (manufactured by Teijin Dupont), Therapy MF (manufactured by Toray Kako Co., Ltd.), and release paper (manufactured by Lintec) can be used as the release layer.

Furthermore, from the viewpoint of enhancing the sense of unity and wearability when using the self-care kit of the present invention, the calf-adhering gel sheet (X) has a lower-limb wearable body (Y) on the surface opposite to the surface to be adhered to the calves. An adhesive layer may be laminated to enhance adhesion to the adhesive layer, and a release layer may be laminated on the adhesive layer.

In producing the calf patch gel sheet (X), for example, when containing the TRPM8 agonist (c), a sheet having a hydrous gel layer containing this and water (b) is placed in a packaging pillow, and the pillow is The gas inside can be replaced with carbon dioxide gas (a). In order to contain carbon dioxide gas (a), during or after sheet formation, carbon dioxide gas is dissolved in the gel, the obtained sheet is placed in a packaging pillow, and the gas in the pillow is removed or further gas may be replaced with carbon dioxide.

At this time, carbon dioxide (a) is 50% by mass or more, preferably 70% by mass or more, and more preferably 95% by mass or more in the gas in the packaging pillow to maintain the dissolved carbon dioxide concentration in the gel. It is preferable in that In the present invention, gases other than carbon dioxide (a) are not particularly limited, but air, nitrogen gas, etc. are preferable. The gas pressure in the packaging pillow is preferably 0.8 to 2.0 atmospheres, more preferably 0.9 to 1.5 atmospheres, and even more preferably 0.9 to 1.2 atmospheres at 25°C.

The packaging pillow should be impermeable to carbon dioxide gas. The term "impermeability" as used herein means that the carbon dioxide gas permeability is 50 cc/m ² ·day·atm (ASTM D-1434) or less, and impermeability is preferable. A material having heat-sealing properties is preferable, and specific examples include a laminate film laminated with aluminum foil, a laminate film having an aluminum deposition layer, a polyvinylidene chloride film, a laminate film containing a polyvinylidene chloride layer, and the like. . The form of the packaging pillow is preferably a flat bag, a gusset, or the like.

The lower leg wearing body (Y) constituting the self-care kit of the present invention is worn on at least a part of the lower leg, covers the lower leg, and has a tensile strength of 0.0 when the covered portion is stretched 200%. It is a cylindrical or bag-like wearing body for lower limbs with a weight of 5 to 25 N/50 mm. The lower leg in the present invention means the portion from the knee to the ankle. Swelling of the lower legs is thought to be caused by poor circulation of leg tissue fluids such as water, blood, and lymph, resulting in stagnation of water in interstices between cells and stagnation of water in the blood. However, when the wearing body (Y) for the lower limbs of the present invention is worn, for example, on the calf, it has the effect of returning excess interstitial fluid into the tissue, and when worn on the ankle, blood flows from the lower part of the leg to the upper part. When the wearing body (Y) for the lower leg is used alone, swelling of the lower leg can be satisfactorily reduced. On the other hand, the present inventor has found that there is a problem that the toes get cold because the flow of veins to the toes is blocked. Furthermore, the same applies to the gel sheet for calf application.
However, in the present invention, by using the lower leg mounting body (Y) together with the gel sheet for calf application (X), it is possible to unexpectedly and effectively prevent coldness at the tip of the foot, which is a portion away from the lower leg. In addition, the effect of reducing swelling can be synergistically achieved in combination with the calf-adhering gel sheet (X).

The lower leg attachment (Y) covers at least a portion of the lower leg, for example, the calf, and may be a tubular or bag-like lower leg attachment that covers the entire lower leg from the knee to the ankle. It may be a wearing body that covers the thigh. As a specific form of the lower leg wearing body (Y), it may have a cylindrical shape such as a supporter or leg warmer covering the calf to the ankle while exposing the tip of the foot. In order to improve the adhesion with the part, the upper part and the lower part of the cylindrical mounting body may be tapered so that the diameters are different. Moreover, you may use together what covers a calf, an ankle, and each. Alternatively, the lower leg wearing body (Y) may be in the form of a bag, such as tights, stockings, or socks, covering not only the calves and ankles but also the toes.
The mode of covering at least a part of the lower leg includes a mode of covering only the calves, a mode of covering only the ankles, a mode of covering both the calves and the ankles, etc. Among these, the swelling-improving effect is improved. From the point of view, a tubular or bag-shaped wearing body that covers at least the calf is preferable, and a tubular or bag-shaped wearing body that covers from the calf to the ankle is more preferable. Note that the cylindrical mounting body also includes a compression band that becomes cylindrical when worn.

The material of the lower leg attachment (Y) is preferably flexible or extensible so as to follow the movement of the lower leg. Synthetic fibers or semi-synthetic fibers such as vinyl and (tri)acetate; natural fibers such as cotton, silk, hemp, wool, rayon, and the like; and one or more selected from regenerated fibers. Moreover, it may be formed by tricot knitting, rib knitting, or the like using these fibers.

In addition, the size of the lower leg mounting body (Y) is preferably designed so as to be able to cover the gel sheet for calf application (X) from the viewpoint of the effect of reducing swelling. Specifically, it preferably has a length of 10 cm or ^more and 60 cm or less in the longitudinal direction and a length of 5 cm or more and 40 cm or less in the circumferential direction. .

The lower leg wearing body (Y) covers at least a part of the lower leg and has a tensile strength of 0.5 to 25 N/50 mm when the covered portion is stretched 200%. As described above, since the covered portion has a predetermined tensile strength, it is possible to enhance the muscle pumping action of the lower leg, increase the amount of venous return, and effectively reduce the swelling of the lower leg. Combined with (X), it is possible to further enhance the effect of improving swelling, and unexpectedly, it is possible to effectively exert the effect of promoting blood circulation to the toe, which is a part away from the calf, and to cool the toe. can be effectively suppressed.
When the wearing body for lower limbs (Y) is worn, the pressure applied to the covered portion with a tensile strength of 0.5 to 25 N/50 mm at 200% elongation is approximately 3 to 50 hPa. Here, the wearing pressure refers to the pressure applied to a predetermined region from the lower-limb mounting body (Y) when the lower-limb mounting body (Y) is worn (worn).

From the viewpoint of enhancing the swelling-reducing effect, the lower-limb wearable body (Y) of the present invention preferably covers at least the calf to the ankle, and the tensile strength of the portion covering the ankle when stretched 200% is 1 to 25 N/N/. More preferably, it is 50 mm and exceeds the tensile strength of the area covering the calves.
In this way, the area covering the ankle having a predetermined tensile strength has a higher tensile strength than the area covering the calf, thereby further enhancing the muscle pumping action of the calf, increasing the venous return, and The swelling of the calves can be reduced more effectively, and in combination with the calf-adhering gel sheet (X), the swelling-improving effect can be further enhanced. In addition, the calf-adhering gel sheet (X), which is adhered to the calf, is unexpectedly separated from the calf by imparting strength and weakness in tensile strength between the portion covering the ankle and the portion covering the calf. The effect of promoting blood circulation can be more effectively exerted to the toes, which are the areas where the feet are exposed, and coldness of the toes can be effectively suppressed.
When the lower leg wearing body (Y) is worn, the pressure applied to the area covering the ankle with a tensile strength of 1 to 25 N/50 mm at 200% elongation is approximately 5 to 50 hPa. Here, the wearing pressure refers to the pressure applied to a predetermined region from the lower-limb mounting body (Y) when the lower-limb mounting body (Y) is worn (worn).

In addition, the tensile strength of the portion covering the calves in the lower leg attachment (Y) is specifically 5 to 40% higher than the tensile strength of the portion covering the ankle when stretched 200%, from the viewpoint of the effect of reducing swelling. It is preferable that the tensile strength of the part covering the calf is 5 to 40% lower than the tensile strength at 200% elongation of the part covering the ankle, that is, the tensile strength of the part covering the ankle is 5 to 40% lower than this, and the ankle is covered It is preferable that the tensile strength is designed so that the tensile strength gradually decreases from the area covering the calf to the area covering the calf.
In addition, when the lower leg wearing body (Y) is worn, the pressure applied to the part covering the calf having a tensile strength 5 to 40% lower than the tensile strength of the part covering the ankle when stretched 200% is about 3 to 40%. 45 hPa.

From the viewpoint of enhancing the effect of improving the swelling of the lower leg, the lower leg attachment (Y) has a tensile strength of 6 to 25 N/50 mm, more preferably 8 to 15 N/m, when the portion covering the ankle is stretched 200%. More preferred. In this case, when the lower leg wearing body (Y) is worn, the pressure at the part covering the ankle with a tensile strength of 6 to 25 N/50 mm is about 20 to 50 hPa, and the part covering the ankle is stretched by 200%. The pressure applied to the area covering the calves, which has a tensile strength 5-40% lower than the tensile strength at time, is approximately 13-45 hPa. In addition, the pressure of the part covering the ankle with a tensile strength of 8 to 15 N / 50 mm is about 25 to 40 hPa, and the calf with a tensile strength that is 5 to 40% lower than the tensile strength of the part covering the ankle when stretched 200%. The pressure applied to the part to be covered is approximately 15 to 35 hPa.

From the viewpoint of effectively suppressing coldness of the toes or providing a good feeling of comfort, the wearing body for lower legs (Y) has a tensile strength of 1 to 6 N / at 200% elongation of the part covering the ankle. 50 mm is more preferred, and 2 to 5 N/m is even more preferred. In this case, when the lower leg wearing body (Y) is worn, the pressure at the part covering the ankle with a tensile strength of 1 to 6 N/50 mm is about 5 to 20 hPa, and the part covering the ankle is stretched by 200%. The pressure on the part covering the calves, which has a tensile strength 5-40% lower than the tensile strength at time, is approximately 3-19 hPa. In addition, the pressure of the part covering the ankle with a tensile strength of 2 to 5 N / 50 mm is about 6 to 18 hPa, and the calf with a tensile strength that is 5 to 40% lower than the tensile strength of the part covering the ankle when stretched 200%. The pressure applied to the part to be covered is approximately 4 to 16 hPa. In this way, the self-care kit of the present invention reduces the load of putting on and taking off while avoiding an unnecessary increase in the feeling of pressure during wearing without excessively increasing the tensile strength of the wearing body for lower limbs (Y). Also, it is possible to enjoy an excellent effect of suppressing the coldness of the toes and a good feeling of comfort.

In addition, the lower leg attachment (Y) has the effect of suppressing the coldness of the toes and the feeling of use, and from the viewpoint of having a better effect of reducing swelling of the lower leg, when the part covering the ankle is stretched by 200% The tensile strength of is preferably 6 to 25 N / 50 mm, and the tensile strength at 200% elongation of the portion covering the calf is 5 to 40% lower than the tensile strength at 200% elongation of the portion covering the ankle. The tensile strength at 200% elongation of the part covering the ankle is 8 to 15 N / m, and the tensile strength at 200% elongation of the part covering the calf is the tensile strength at 200% elongation of the part covering the ankle. 5 to 40% lower than that is even more preferred. As described above, the self-care kit of the present invention can enjoy a better effect of reducing swelling while maintaining the excellent effect of suppressing coldness of the toes and a good feeling of comfort of the wearing body for lower limbs (Y). .

The tensile strength (N/m) of the lower leg attachment (Y) is the force required to extend the length of the lower leg attachment (Y) to 200% of the length before extension in the circumferential direction. means the strength of Here, the circumferential direction of the lower-limb mounting body (Y) refers to the direction along a plane parallel to the ground when the lower-limb mounting body (Y) is worn. say the direction Specifically, the tensile strength (N/m) of the lower leg attachment (Y) is measured using a tensile tester (Tensilon (manufactured by ORIENTEC)). The test piece was prepared by cutting the lower leg mounting body (Y) into a rectangle of 150 mm in the circumferential direction and 50 mm in the longitudinal direction, and using a tensile tester (Tensilon (manufactured by ORIENTEC)), a grip length of 100 mm and A tensile strength value is measured when a tensile test is performed at a tensile speed of 500 mm/min.
Further, the wearing pressure (hPa) of the lower-limb mounting body (Y) means that the lower-limb mounting body (Y) is actually worn on the lower limbs of a person, and air is generated between the lower-limb mounting body (Y) and the skin. It means the value of contact pressure measured using a contact pressure measuring device (manufactured by AMI) when a pack sensor (pressure receiving part size: Φ20) is installed.

When the lower leg attachment (Y) is used so that the calf adhesive gel sheet (X) is covered with the lower leg attachment (Y), from the viewpoint of enhancing the usability of the self-care kit of the present invention, the lower leg A positioning mechanism may be provided for arranging the calf-adhering gel sheet (X) before being adhered to the calves on the inner wall surface of the portion of the wearable body (Y) covering the lower leg. As a result, the calf-adhering gel sheet (X) can be attached in advance to the portion of the lower-limb attachment (Y) covering the calf, and the attachment can be simplified.

Specifically, in using the self-care kit of the present invention, for example, first, the gel sheet for calf application (X) is applied to the skin of the calf. When the gel sheet for calf application (X) is stored in a packaging pillow, the package is opened and the gel sheet for calf application (X) is taken out. After peeling it off, it is quickly applied to the skin of the calf.
Next, the lower leg wearing body (Y) is worn on the lower leg. When the lower leg attachment (Y) is attached to the calf, the gel sheet for attachment (X) is placed on the skin of the calf at the site covering the calf, and the gel sheet for attachment (X) is attached to the upper surface of the gel sheet for the lower leg. From the viewpoint of preventing peeling off of the gel sheet for attachment, the mounting body for lower limbs (Y) may be worn so as to completely cover the gel sheet for attachment (X).

As described above, the self-care kit of the present invention is a simple procedure in which the calf-adhering gel sheet (X) included in the self-care kit is applied to the calf, and the lower-limb attachment (Y) is attached to at least a part of the lower leg. Depending on the mode of use, both the swelling of the lower leg and the coldness of the toes can be effectively improved. Therefore, such a self-care kit can be used as miscellaneous goods or medical equipment, and is preferably used as a medical equipment for suppressing swelling of the lower leg and coldness of the toes.

EXAMPLES The present invention will be specifically described below based on examples. In addition, unless otherwise indicated in Table 1, the content of each component indicates % by mass.

[Preparation of gel sheet (X)]
After preparing an uncrosslinked hydrous gel stock solution according to the formulation shown in Table 1, a gel sheet was produced. Specifically, carboxymethyl cellulose, polyvinyl alcohol, aluminum hydroxide, glycerin, and methyl p-hydroxybenzoate were blended with an aqueous succinic acid solution and charged into a kneader. After that, gel sheet X _A was added with propylene glycol, and gel sheet X _B was added with propylene glycol in which TRPM8 agonists menthol and tri(caprylic/capric) glyceryl (manufactured by Kao) were heated and dissolved, and mixed to form an uncrosslinked gel. prepared. The resulting uncrosslinked gel was sandwiched between a polyethylene film and a non-woven fabric, and spread with a baker-type applicator so that the thickness of the hydrous gel was 1 mm. Further, the water-containing gel was aged at room temperature of 25° C. for 7 days to cause an ionic cross-linking reaction to obtain a cross-linked gel sheet. The resulting gel sheet was cut into a rectangle (area 100 cm ² ) and placed in an aluminum pillow.
Next, the gel sheets X _A and X _B were used after replacing 90% or more of the atmosphere in the pillow with carbon dioxide gas, encapsulating the pillow, and maintaining the carbon dioxide concentration in the gel at about 1000 ppm for 5 days.

[Preparation of mounting body (Y)]
As the mounting body (Y), mounting bodies (Y _A ), (Y _B ) and (Y _C ) shown below were prepared.
The mounting bodies (Y _A ) and (Y _B ) accommodate the area from the ankle to the lower part of the knee, and are positioned above the first storage section for accommodating the ankle and the second storage section for accommodating the calf and shin. 2 storage part and the 3rd storage part which is located above the 2nd storage part and stores the lower part of the knee. The mounting body (Y _C ) is composed only of a portion for housing the calf and shin. A normal covering yarn (FTY) used for the knitting yarn of the mounting body (Y) uses polyurethane with a thickness of 20 to 160 denier as a core yarn and uses a yarn wound with a bulky processed yarn (woolly nylon yarn). The attached bodies (Y _A ) and (Y _B ) were knitted while adjusting the stitch density of the knitting machine so that the stitches of the attached bodies (Y A ) and (Y B ) gradually decreased from the second storage portion toward the first storage portion. Here, the stepwise reduction from the second storage portion toward the first storage portion means that, as an example, the second storage portion has three areas on the side of the third storage portion, the central portion, and the side of the first storage portion. When divided equally, the tensile strength of each part is the first storage part > the first storage part side of the second storage part > the center part of the second storage part > the third storage part side of the second storage part It refers to designing

Shown below are the tensile strengths of the mounted body (Y _A ), the mounted body (Y _B ), and the mounted body (Y _C ) at 200% elongation. A higher tensile strength indicates a higher contact pressure at each site. In addition, regarding the wearing body (Y _A ) and the wearing body (Y _B ), the tensile strength of the first storage part, which is the part that covers the circumference of the ankle, is the tensile strength of the first storage part excluding the folded part at the end of the structure. It means a value measured by measuring the tensile strength value of a test piece created by cutting the first storage site above the ankle into a rectangle of 150 mm in the circumferential direction and 50 mm in the longitudinal direction, from the shin to the calf. The tensile strength of the second storage part, which is a part that covers the periphery of the second storage part, is measured by cutting out the intermediate part in the circumferential direction of the second storage part into a rectangle of 150 mm in the circumferential direction and 50 mm in the longitudinal direction. It means a value determined by measuring intensity values. As for the mounting body (Y _C ), only the tensile strength value of a test piece was measured by cutting out a rectangle of 150 mm in the circumferential direction and 50 mm in the longitudinal direction from the intermediate portion in the circumferential direction.

Mounting body (Y _A ): The tensile strength of the second storage part, which covers the circumference from the shin to the calf, is 2 N/50 mm, and the tensile strength of the first storage part, which covers the circumference of the ankle, is 2. 2 N/50 mm, and the tensile strength of the portion covering the calf at 200% elongation is 10% lower than the tensile strength of the portion covering the ankle at 200% elongation Mounting Body (Y _B ): Circumference from shin to calf The tensile strength of the second storage part, which is the part that covers the ankle, is 8 N / 50 mm, and the tensile strength of the first storage part, which is the part that covers the circumference of the ankle, is 10 N / 50 mm. The tensile strength at the time of stretching is 20% lower than the tensile strength at 200% elongation of the part covering the ankle Mounting body (Y _C ): A mounting body consisting of only the part covering the circumference from the shin to the calf, and the tensile strength is 10 N /50 mm and uniform tensile strength.

[Examples 1 to 5, Comparative Examples 1 to 6]
According to the configurations shown in Tables 2 to 5, a kit was prepared using the gel sheet (X) and the mount (Y) as appropriate, and each evaluation was performed using the obtained kit according to the following criteria.
The results are shown in Tables 2-5.

[Induction of swelling in the lower leg]
Before applying the gel sheet (X) and/or the wearer (Y) according to the configuration of each kit, the model's lower leg was preloaded to induce swelling.
Specifically, each model was kept in a supine position for 10 minutes in an environment of 24.5°C ± 1°C and a relative humidity of RH 50% (habituation), and then stood immobile for 30 minutes. After holding (load), each evaluation shown below was performed.

[Application of gel sheet (X) and/or mounting body (Y)]
According to the configuration of each kit, apply only the gel sheet (X) or the mounting body (Y), or use the gel sheet (X) and the mounting body (Y) in combination to the lower leg of each model in which swelling is induced. Applied.
When only the gel sheet (X) was applied, the aluminum pillow was opened and the gel sheet (X) was immediately applied to the calf.
When only the wearing body (Y) was applied, the wearing body (Y) was worn while gradually extending from the tip of the foot.
When applying the gel sheet (X) and the mounting body (Y) in combination, first open the aluminum pillow in which the gel sheet (X) is enclosed, quickly attach the gel sheet (X) to the calf, and then attach The wearer (Y) was worn while gradually extending from the tip of the foot so as to wrap the gel sheet (X) together.

The gel sheet (X) or the wearing body (Y) alone, or the gel sheet (X) and the wearing body (Y) were worn on the lower leg, and after adapting in a sitting position for 30 minutes, each evaluation was performed according to the following criteria. Table 2 shows the results.

[Evaluation of lower leg swelling improvement effect]
Before and after applying the gel sheet (X) and / or the mounting body (Y) according to the configuration of each kit, the amount of volume change from the left and right knees to the ankle in the lower leg of the model is obtained, and the swelling improvement effect is evaluated. This was used as an evaluation index.
In addition, below the knee in the lower leg refers to the portion where the patellar ligament contacts the tibial tuberosity, and in the lower leg, the ankle refers to the portion where the circumference of the lower leg is the smallest.
Specifically, a 3D scanner VOXELAN (manufactured by Hamano Engineering), a non-contact high-definition three-dimensional data measuring device, was used to measure stereoscopic images of the lower extremities. The volume of the lower leg from below the knee to the ankle (minimum lower leg) was analyzed, and the amount of change in lower leg volume was obtained by the following formula (1). A larger positive value of the leg volume change indicates that the swelling is improved.
Lower leg volume (after loading) - lower leg volume (after recovery) = lower leg volume change (1)
Table 2 shows the average values of the left and right leg volume changes.

[Evaluation of effect of suppressing cold feet]
Changes in the skin temperature of the model's toe were examined before and after application of the gel sheet (X) and/or the wearing body (Y) according to the configuration of each kit.
Specifically, after measuring the skin temperature of the sole with an infrared thermography camera InfReC R300 (manufactured by Nippon Avionics), the skin temperature of five toes on both the left and right sides was measured with the analysis software InfRec Analyzer NS9500 Standard (manufactured by Nippon Avionics). was obtained, and this was used as the toe skin temperature, which was used as an index for evaluating the effect of suppressing the coldness of the toes, and the amount of change in the toe skin temperature was obtained by the following formula (2). The larger the absolute value of the toe skin temperature variation, the more the toe is suppressed from being cold.
Toe skin temperature (after load) - Toe skin temperature (after recovery) = Toe skin temperature change (2)
For the amount of change in skin temperature of the toes, the average value for both the left and right toes was described as data.

[Evaluation of comfort]
Before and after applying the gel sheet (X) and / or the wearing body (Y) according to the configuration of each kit, "comfort of the foot during use", "refreshing feeling of the foot after use", and "ease of movement of the foot after use" The results were evaluated on a 5-point scale, and the average value of the 3 expert panelists was obtained. Next, the total value of these five items was calculated and used as an index for comprehensive evaluation of comfort.
A larger value indicates a better feeling of comfort.

<Comfort after use>
4: very comfortable,
3: Comfortable 2: Slightly comfortable 1: Slightly comfortable 0: Uncomfortable

<Clean feeling of feet after use>
4: Very clean 3: Clean 2: Slightly clean 1: Slightly clean 0: Same as before use

<Easiness of foot movement after use>
4: Very easy to move 3: Easy to move 2: Somewhat easy to move 1: Slightly easy to move 0: Same as before use

<Fatigue of feet after use>
4: Fatigue completely gone 3: Fatigue gone 2: Fatigue a little gone 1: Fatigue slightly gone 0: Same as before use or worse than before use

<Blood circulation of the whole foot after use>
4: Feeling much better 3: Feeling better 2: Feeling slightly better 1: Feeling slightly better 0: Same as before use

From the results in Table 2, Example 1 in which the gel sheet (X _A ) containing carbon dioxide gas and the mounting body (Y _A ) are used in combination, and Example 3 in which the gel sheet (X _A ) and the mounting body (Y _B ) are used together, Compared to Comparative Example 2 using the mounting body (Y _A ) alone, Comparative Example 3 using the mounting body (Y _B ) alone, and Comparative Example 5 using the gel sheet (X _A ) alone, the lower leg volume It can be seen that the effect of improving swelling and the feeling of use are excellent from the amount of change. Further, in Example 2 in which the gel sheet (X _B ) containing carbon dioxide gas and menthol and the mounting body (Y _A ) are used in combination, and in Example 4 in which the gel sheet (X _B ) and the mounting body (Y _B ) are used, further excellent results are obtained. effect is obtained.
On the other hand, Comparative Example 4, in which the gel sheet (X _B ) containing carbon dioxide gas and menthol was used alone, exhibited a swelling-improving effect to some extent, but did not reach the results of the Examples.

From the results in Table 3, Example 1 in which the gel sheet (X _A ) containing carbon dioxide gas and the mounting body (Y _A ) are used in combination, and Example 2 in which the gel sheet (X _B ) and the mounting body (Y _A ) are used together, It can be seen that compared with Comparative Example 2 in which the wearing body (Y _A ) was used alone, coldness of the toes can be greatly suppressed.

From the results in Table 4, Example 3 in which the gel sheet (X _A ) containing carbon dioxide gas and the mounting body (Y _B ) are used in combination, and Example 4 in which the gel sheet (X _B ) and the mounting body (Y _B ) are used together, As compared with Comparative Example 3 in which the mounting body (Y _B ) was used alone, it can be seen that coldness of the toes can be greatly suppressed.

From the results in Table 5, Example 5, in which the gel sheet (X _B ) and the mounting body (Y _C ) are used in combination, compared to Comparative Example 6, in which the mounting body (Y _C ) was used alone, reduced the coldness of the toes. It can be seen that this is greatly suppressed.

Claims (5)

The following (X) to (Y):
(X) contains carbon dioxide gas (a) , water (b) , TRPM8 agonist (c) and oil agent (d) , and the content of TRPM8 agonist (c) is 0.3 to 0.7% by mass, and A gel sheet for calf application in which the mass ratio ((c)/(d)) of the content of the oil (d) and the content of the TRPM8 agonist (c) is 0.5 to 20 (Y) at least from the calf to the ankle and having a tensile strength of 8 to 15 N/50 mm at 200% elongation of the part covering the ankle, exceeding the tensile strength of the part covering the calf . A lower extremity self-care kit comprising: 2. The self-care kit according to claim 1 , wherein the content of carbon dioxide gas (a) in the gel sheet for calf application (X) is 100 to 15000 ppm. 3. The self-care kit according to claim 1 or 2 , wherein, in the wearing body (Y), the tensile strength of the portion covering the calf is 5 to 40% lower than the tensile strength of the portion covering the ankle when stretched 200%. 4. The self-care kit according to any one of claims 1 to 3, wherein the calf patch gel sheet (X) has an ethanol content of 0.1% by mass or less. The self-care kit according to any one of claims 1 to 4 , which is used for improving swelling of lower legs and cold feet.