JP2003126137A - Warm-sensing material and cold-sensing material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily realize comfortable heating for a body. SOLUTION: The material is composed of combination of a hydrated gel substrate having water retaining property and a water impermeable sheet.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a warming sensation material that gives a warm feeling and a cooling sensation material that gives a cooling sensation by contacting various parts of a living body.

[0002]

2. Description of the Related Art Physical therapy, which is performed by giving a temperature stimulus to a living body, has been performed for a long time, and various types of heating mediums such as infrared rays, lightning baths, hot baths, and heat packs have been proposed. In recent years, a device for hyperthermia treatment has been proposed, which minimizes the intervention of a person with specialized knowledge, but it is still a treatment device and various stimulations can be applied. Since it is for giving and treating, it is necessary to comply with the usage for treating various diseases and other requirements, and it is necessary to relieve the stress caused in the lifestyle because it is complicated. It is not something that you can use freely, with peace of mind.

[0003]

SUMMARY OF THE INVENTION In view of the above, the present invention provides a method of heating a water-containing base material having water retention once and contacting the skin with the water-containing base material.
The present inventors have found that the heat-retaining state lasts for a longer period of time by covering the surface thereof with a water-impermeable member, and have reached the present invention. Further, the present invention, the water-containing gel substrate is cooled at least body temperature or less, by performing the same treatment, it was found that the cooling time can be maintained for a long time, which is the opposite of heating, but only by cooling, Achieves recovery from fatigue due to comfort and healing effects. Persistence in the present invention means
Rather than maintaining a constant temperature for a long time, the peak temperature is set at the time of contact, and after contact, when the temperature drops, it may be higher or lower than the body temperature for about 20 minutes or less for a desired time. It is intended to maintain and give the user a feeling of heat and cold. That is, in the present invention, the relaxation stimulus by a transient change is given to the living body from the first, a warm and cold stimulus with a crisp tension, to a feeling that it gradually descends and adapts to the living body. However, it is very pleasant and gives us a feeling that has never been seen before. Further, the present invention, when the water-containing gel sheet is heated by a microwave heating means such as a microwave oven, it is possible to eliminate excessive heating of the edge portion by heating in a state of being immersed in the aqueous solution, and Excessive heating was prevented by covering the microwave irradiated to the part with a microwave impermeable member at a predetermined distance.

The water-retaining gel base material or water-holding base material in the present invention means, for example, agar, carrageenan, furceleran, guar gum, xanthan gum, quince seed derived from quince, mucopolysaccharide such as hyaluronic acid and its salts, starch, Examples include dextran, dextrin, pullulan, cellulose and its derivatives, carboxyvinyl polymer, polyvinyl alcohol and saponified products thereof, polysaccharides obtained from seaweed, etc., but also saponified polyvinyl alcohol, polyvinyl formal, polyvinyl methyl ether. And copolymers thereof, vinyl-based resins such as polyvinylpyrrolidone and polyvinylmethacrylate, polyacrylic acid and sodium salts, polyacrylamide, and partial hydrolysates thereof, partially saponified polyacrylic acid ester, and poly Acrylic acid over acrylamide)
Various natural or synthetic resins having hydrophilicity such as acrylic resins such as propylene glycol, ethylene glycol,
Those obtained by softening and plasticizing with polyhydric alcohols such as glycerin are also included. What is a polysaccharide obtained from seaweed?
As mentioned above, agar (agarose, agaropectin), alginic acid and its salts, sulfated polysaccharides, etc. are exemplified. For the gel base material or water retention base material, select one of these components, or
Alternatively, a plurality of components are selected and these are combined.

The agar in the present invention is a polysaccharide extracted from red algae such as agarella and various ones can be applied, and purified agar having high gel strength is preferable. Agar is preferably contained in an amount of 2% by weight or less in order to maintain flexibility when processed into a sheet, but is not limited thereto. In the present invention, the preferable heat retention temperature is around 30 to 50 ° C., and in that range, the shape retention property is preferably maintained. On the contrary, the cooling temperature may be a temperature equal to or lower than the body temperature, and is exemplified by about 0 ° C to 30 ° C.
It is not limited to this. The heat retention time is 30 minutes or less, preferably 20 minutes or less, and therefore the size is appropriately adjusted. For example, those having a thickness of 0.1 to 10 mm are exemplified, but the thickness is not limited thereto. In some cases, a polysaccharide that can retain its shape retention up to about 50 degrees may be used.

Particularly in agar, a gel base material may be formed by its own shape-retaining property, but in that case, a polyol such as glycerin is added in an amount of 0.5 to 1 to reinforce the shape-retaining property and heat resistance.
It may be formed by adding 0% by weight. Further, in order to enhance the shape retention property, a non-woven fabric, tulle or the like may be interposed on the surface or inside as a reinforcing material. With such a structure that the voids of the mesh-like sheet are filled, a more natural heat insulating material can be formed without adding a thickener. The non-woven fabric may be in a preferable form in that the non-woven fabric is interposed in the middle and further covers the water-impermeable member so as to entirely cover the non-woven fabric in order to prevent heat diffusion and improve heat storage.
Also, using a water-impermeable member and a non-woven laminated sheet,
It may improve heat storage. Alternatively, a thermo-irreversible gelled product of alginic acid or a salt thereof, water, and a calcium salt, for example, LM pectin is stirred and boiled and dissolved in water, and then cooled and reacted with an aqueous solution of about 3% calcium chloride. The heat-irreversible gelled substance and the like to be used are also suitably used because they do not change their shape when heated. In the present invention, sorbic acid, sodium benzoate, isobutyl P-oxybenzoate, and sodium dehydroacetate are optionally added as preservatives. Further, in the present invention, these may be used in combination in order to enhance the antiseptic effect. Alternatively, the base material may be sealed with a heat-resistant sheet and then heat-sterilized by an autoclave means (for example, 120 ° C. or lower). The quality is stable and more natural until the sheet is peeled off. A warm sensation material can be obtained. The water impermeable member in the present invention means P
Any material such as ET, polypropylene, polyethylene, PVA, vinyl chloride, styrene resin, polystyrene, vinyl and resin may be used.
In some cases, it is possible to use a semipermeable membrane. Further, since it is applied to the skin, it is preferable that it is lightweight and flexible.

The present invention may be of any shape as long as it can come into contact with various parts of a living body, and may have a sheet-like shape along the adaptation site or a square unit shape, which is appropriately selected depending on the use situation. To be done. Further, the present invention has a step of preheating such a gel substrate, but as a heating means therefor,
In addition to proposing a specific known heating device capable of heating to a desired temperature, it may be heated by heating in a microwave oven, warm water, or in the sun. In the present invention, the microwave heating means mainly refers to a microwave oven, and by using a household microwave oven, the present invention is easy and easy to use, recovery from fatigue after work, etc. Is possible in a short time. The gel base material that decreases to body temperature in 10 to 15 minutes forms a comfortable state of mind in a short time and at a time when it can be used by humans without stress. It is preferable that the water-impermeable member sufficiently covers the gel substrate except for the contact surface with the living body. This is because when the temperature of the gel base material is lowered, and if the edge has a contact surface with the atmosphere, only that portion is quickly lowered to the body temperature or lower, which causes discomfort. When a microwave oven is used, it is preferable to heat the sealed hydrogel in an aqueous solution, mainly tap water.
Alternatively, it is preferable to intermittently heat for about 10 seconds. The heating time varies depending on the size, volume, etc. of the gel, but is exemplified by a long time of about several minutes. Further, the present invention, without using such an aqueous solution, a sheet that blocks microwaves, such as an aluminum sheet, is placed at the edge of the sheet to the extent that it does not come into contact with the gel, and by heating with microwaves, The temperature of the sheet can reach about 50 degrees in a shorter time. In the present invention, to the extent that the sheet that blocks microwaves does not contact the edge of the gel substrate,
It may be arranged, but in the case where the sheet is processed into a slit shape, it may be contacted. or,
Depending on the preference of the user and the part to be used, it is preferable that there is a certain weight feeling, and the range of about 50 to 150 g is exemplified, but the present invention is not limited thereto.

In addition to the case where the heating is carried out in advance, a sheet-shaped heating element with the water-containing gel base material in contact with the living body,
Infrared lamps or the like may be supplementarily combined in some cases. Further, as additives, vitamin C or its derivatives and salts, vitamins and its derivatives, various mineral components such as zinc and manganese, far infrared ray generating materials such as carbon, calcium phosphate ceramics such as chitin, chitosan and apatite, and other alumina. , Silica-based ceramics, various amino acids and peptides, proteins such as albumin, collagen, elastin, hot spring water, animal and plant oils such as herb oil, animal and plant extracts such as herb extract, yeast extract, fragrances, colorants, sugars and their derivatives , Silicone and mineral oil, essential fatty acids, urea, lactic acid, etc.
Hydroxy acid, glycyrrhizic acid salt and its derivative, essential oil such as allantrain, lemongrass and the like may be added, and in addition, if it is useful to the living body, it may be appropriately added. According to the addition, the absorption of the herb extract from the skin and the comfort of warmth due to the odor as well as the healing efficiency are improved, and relaxation of the mind and body may be achieved in a relatively short time. Further, a selective permeable membrane may be interposed at the site where the gel base material comes into contact with the skin, and by selectively applying the components of the gel base material to the skin surface, selective use by individual users, etc. Is feasible. In addition, a thickener may be added in some cases so that the gel base material is adhered and held. Further, in order to use the sensible heat of water more effectively, the sensible heat may be applied to a living body in a state of being wrapped in a resin having a high thermal conductivity so as to use only the heating effect.

Example 1 As shown in FIG. 10 is a hydrous gel base material obtained by the above-mentioned manufacturing method, and examples of its components are shown below. Ingredients Weight% Agar (Ina Agar M-13) 1 Agar (Ina Agar SM-9) 0.5 Herb extract 1 Caffeine 0.01 Olive oil 0.1 Fragrance Micro colorant Micro water Total 100%.

Reference numeral 11 denotes a peeling member, which is a sheet made of a resin such as PET or polypropylene, which covers one surface of the hydrogel base material, and 12 is a supporting member, including the peeling member 11. It is formed of a water impermeable member and covers the other surface of the hydrogel base material 10, and the hydrogel base material 10 is vacuum-sealed by both peeling members. In this state, the water-containing gel substrate 10 sealed by the peeling member 11 and the supporting member 12 as described above is used.
Warm up or down.

A microwave oven is mainly used as the heating means, and FIG. 2 shows an example of a container used at that time. In FIG. 2A, the container 20 formed by the microwave transmitting member 22 can be separated, for example, into upper and lower parts, and an aluminum foil 21 which is a microwave impermeable member is attached to the periphery. Space 24 with gel base material 23 in the container
Is necessary, but may be set in units of several mm.
The distance 25 at the edge of the gel substrate 23 and covering the thin aluminum film 21 is about several mm to several tens of mm, specifically 5 mm to 2
An example is about 0 mm, but the present invention is not limited to this. Further, the side surface portion 22a may not require the aluminum foil. FIG. 2C shows a microwave impermeable sheet such as aluminum foil,
It has a slit shape 26. In the figure, some slits are omitted. Also, instead of slit shape,
It may have a mesh shape. When forming a slit shape or a mesh shape, the heating material may be controlled depending on the total blocking area. In this case, the gel base material 23 and the inside of the container may come into contact with each other (when 24 in FIG. 2A is 0), and a structure capable of uniformly heating the base material is shown.

After heating in FIG. 1, the peeling member 11 is peeled from the hydrous gel substrate 10 to expose the hydrous gel substrate 1.
The surface 0 is brought into contact with the face, arms, legs, shoulders, waist, neck and the like. Maintain that state for about 20 minutes to ensure the transfer of aroma components to the skin. At this time, the support member 12 and the peeling member 11
It is also possible to adopt a configuration in which the water-containing gel base material 10 is held at that portion by applying an adhesive material to the contact surface.
Alternatively, the peeling member 11 and the supporting member 12 may be peeled off, contacted with the skin, and then covered with a water impermeable member.

Example 2 The following components are shown as another example of the hydrogel base material. The manufacturing method is sufficient by mixing these components. Ingredients% by weight Agar 1 Concentrated glycerin 9 Sodium chloride 1 Fragrance Coloring agent Trace amount Purified water Total 100% by weight.

The gel base material is also heated and brought into contact with various parts of the living body in the same manner as in the above-mentioned embodiment. However, in this embodiment, since it has self-adhesiveness, it can be used even while working. Becomes Further, it is superior in heat stability to the base material containing agar as a main component, and can withstand excessive heating by a microwave oven to some extent as compared with the main component containing agar.

Experimental Example The gel base material (150 mm × 70 mm × 15 mm) shown in Example 1 was placed in a vinyl bag, then placed in a heat-resistant glass container filled with tap water, and heated in a 600 w microwave oven for 1 minute. The gel base material was taken out from the vinyl bag, applied to the periphery of the middle eye of a person's face, and a vinyl sheet was put on the gel base material, and the surface temperature of the gel base material was measured with time. As a comparison, the same experiment was conducted by making it easy without covering the vinyl sheet. The results are shown in Fig. 3. From FIG. 3, it is apparent that the heat retention was good, and that the vinyl sheet provided a comfortable feeling of warmth.

[0016]

INDUSTRIAL APPLICABILITY As described above in detail, according to the present invention, a water-containing gel base material having an excellent heat retaining property is heated or cooled in advance and brought into contact with a living body. By covering it, it is possible to feel comfortable and heal by simple handling, to release tension and to promote blood circulation as much as possible. Further, according to the present invention, the effects of promoting the growth of useful indigenous bacteria of the skin and ensuring a good state of the sebum membrane are exhibited.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention.

FIG. 2 is a diagram showing an embodiment of the present invention.

FIG. 3 is a diagram for explaining an example of the present invention.

[Explanation of symbols]

10 Hydrogel base material 11 Peeling member 12 Support member

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hiroki Yonemura             2-8-18 Ohashi, Meguro-ku, Tokyo             In the Dovance DDSR & D Center F-term (reference) 4C099 AA05 CA19 GA02 HA04 LA03                       LA06 LA14 LA15 PA01

Claims (5)

[Claims] 1. A warm or cold sensation material comprising a water-containing gel base material having water retention properties and at least a water-impermeable member covering a surface of the water-containing gel base material other than the skin contact surface. 2. A method of using a warming sensation material and a cooling sensation material, which comprises contacting a water-containing gel base material having water retention property and then covering the periphery with a water impermeable member. 3. A warming material which comes into contact with the skin in a state where the hydrogel base material is heated to 40 to 50 degrees. 4. A heating method for a warming sensation device, wherein the hydrogel base material is immersed in an aqueous solution and heated by a microwave heating means. 5. A microwave heating means is used to heat the water-containing gel edge part in combination with means arranged so as to cover a microwave impermeable member at a predetermined distance. How to heat the warming tool.