JPS6060176A - Sticking material for cooling body surface - Google Patents

Abstract

PURPOSE:To provide the titled sticking material which is lightweight, has a small volume, can be readily stored, transported and carried and does not require heat insulation before its use, by providing an absorptive material layer impregnated with a volatile liquid on one side of a specified metallic material and a pressure-sensitive adhesive layer on the other side thereof. CONSTITUTION:An absorptive material layer (e.g. felt) 2 impregnated with a volatile liquid (e.g. an a.q. 1,2-propanediol soln. having a concn. of 5-30wt%) is provided on the produded surface of a metallic material 1 (e.g. aluminum) having protrusions formed on one side and having a thickness of 0.05-1mm. and thermal conductivity of 0.1cal/cm.sec. deg.C or above. A pressure-sensitive adhesive layer 3 composed of natural rubber or polyisoprene is provided on the other side thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a body surface cooling patch.

Conventionally, in order to prevent fever or a rise in body temperature due to the ambient temperature, or simply to obtain a cool feeling, the body surface has been applied to some body surfaces, such as the forehead. temperature not yet 1
It is widely practiced to bring it7+ objects into contact. Objects that have a temperature below the body surface temperature that have been used for a long time include cloths, such as towels soaked in cold water, water pillows, and ice packs. In recent years, heat capacity is relatively large.
''' is filled into a bag and sealed +V) ('
Products that are cooled in a H7 warehouse or the like and then taken out for use are also commercially available and in use. Currently used body surface fFaL degree i'1! fff
Although it has become relatively easy to store these objects in these days of widespread use of freezers and refrigerators, they still have the following disadvantages:

Objects with a body surface spirituality level of 7, which is currently in use, are water-based. It is obtained in a form that depends on the heat of fusion associated with melting or the heat capacity of the single VC object. Therefore, by using such an object, the body surface W'1. When the temperature reaches a certain degree and the cooling effect disappears, the object can be cooled again by placing it in a freezer or refrigerator, for example.

Then, using such an object, the cooling effect on the body surface VCλ''J can be achieved for a practical period of time, for example +'a little -<fortunately;
It lasts for about 30 minutes to 1 hour.
, the weight and volume of the object will inevitably increase, and the object should not be held in the hand or with a string or bunt on a table where a person moves or exercises while the object is in contact with the body surface for 7 N. It becomes necessary to strongly harden the body surface, which causes discomfort, contrary to the effect of cooling the body surface.

In order to use such an object continuously for a long time in a place where a negative heat source such as a freezer or refrigerator can be obtained, prepare a large number of such objects and store them (<7 L,
4: It becomes necessary to transport the whole thing, which requires a lot of effort.

As mentioned above, objects currently used at temperatures below the body surface temperature have extremely poor portability. In addition, especially if the object whose body surface temperature is 0/114 is simply a towel or the like containing (a) water, the negative heat source required for cooling depends on the water formation: 11. , the temperature of the object rises almost immediately upon contact with the body surface, and the time it takes to cool down is short, and the frequency of adding cold water to the towel, etc. is reduced. It is expensive and requires a lot of effort.

Also, recently, the negative heat source required for cooling is dependent on the dissolution of crystals that absorb heat when dissolved in a solvent on the body surface 7. X-11 degrees of undesired object: Jru.”
: Sea urchin mushrooms are also commercially available. ko1LiJ: ,t
':1. To measure the weight, a solvent and a crystal that dissolves in the solvent and exhibits an endothermic r′r-reaction are separately filled into a container, for example, a bag, and immediately before use, the solvent and the crystal are packed together. By coalescing and mixing 1 in the container, the crystal melting IQ! (
During this process, heat is absorbed, resulting in an object whose temperature is below the body surface temperature. 12° 11t: Cooling effect on the body surface of objects that do not have t length time 41i
The reality is that in order to continue, the weight h1- and volume of the object must become that of a human being, and in history, the crystal has completely dissolved and the body surface is 1nth+! Once the temperature reaches 1 degree, the body surface temperature becomes less than M'l according to the same principle.
It is not possible to convert it into A, and it is discarded, which poses a problem from the viewpoint of resource conservation and environmental conservation.

The inventors of the present invention have conducted extensive research to overcome the above-mentioned drawbacks of objects whose temperature is below the body surface that are currently used for the purpose of cooling the body surface.
-It has reached its original form. That is, in the present invention, 1-1 thickness is 0.1
15 to l mm, the thermal conductivity is (], lCa1/
cllノ・SeC・（゛」゛）1-1 metal removal f4
Absorbency 4 (including volatile liquid) in one of (5)
The present invention provides a body surface cooling adhesive 4A which has 2 advantages (■3) and has a viscous 2"'1 ablation layer (Q) on the other side.

Example of body surface cooling terminology of the present invention (A is compared with an object whose temperature is lower than the body surface temperature that is aimed at cooling the body surface 1111 currently used. E-C1 has the following differences. The body surface cooling term obtained by carrying out the present invention refers to the body surface cooling obtained through the adhesive layer (Q). , the source of the negative p required for cooling is the heat of evaporation of the volatile liquid,
(It can be made lighter and smaller in size, causing no discomfort when moving or exercising while using it.)
The cooling effect can be maximized without any heat loss. During use, a constant temperature below the body surface temperature can be maintained as long as the volatile liquid does not run out. Furthermore, the body surface cooling patch of the present invention does not require any cooling during storage, transportation, or portability before use. Volatile liquid only, absorbent layer A'] layer (13
) or in a separate container and seal it tightly to prevent evaporation.3. In addition, when using the body surface cooling terminology of the present invention for a long time, does the volatile liquid run out? If the cooling effect disappears, the cooling effect can be obtained by simply impregnating it with a volatile liquid.

The metal monthly rate (A) used in the present invention is 2, and the thickness is 0. (1
, 5 to + mm, and the thermal conductivity is +l, I (
・Htl 7cm-sac ・A pure metal or an alloy with a temperature of 10C or higher For example, it is preferable to use aluminum, copper, silver, gold, etc. Among the metals that can be bent, aluminum is most preferably used because it has a small specific gravity, is inexpensive, and is easy to plasticize and process. <1> Material (5) functions to efficiently transfer the negative heat source obtained when the volatile 1'1 liquid impregnated into the absorbent 42-layer (B) evaporates to the body surface. .Metal moon N (A) form &-11, absorbency 42 interest (13
) is fixed on the surface -C is absorption 1/1 Kigetsu layer (B)
Contains θ h yt-volatilization 1'1. The shape is such that the area over which the liquid evaporates is as large as possible, i.e., there are many protruding or 10-shaped parts, for example. The form is
Monthly metals (5)! It can be obtained by deforming 1'1 or by joining the same protrusion or twist-like shape as metal month (5) to the J''l strip of metal month (5). On the other hand, on the surface where the viscous 4" It is preferable that the shape is such that it can be in close contact with the body surface.

For this purpose, gold 1., 1i 7N old (5) must be able to change its shape at any time to fit the body surface, that is, it must have sufficient flexibility or plasticity. It is desirable that Metal AA O'1. The thickness of (A) is up to t (1.05 to I mm, but preferably - * L <
+: Lo, + ~0.3 mm. 0.05mm
If it is thinner, it will be difficult to maintain the shape of the patch of the present invention (φ1), or the heat conduction efficiency of the protrusion-like or fin-like portion will decrease, and if the thickness exceeds φ1. Difficult to adapt to body surface of unspecified form (1
, and the weight; l: increases (((a problem occurs).

The shape and area of the blood that the metal moon (5) adheres to the body surface through the adhesive layer (q) can be arbitrarily selected depending on the part of the body surface to be used. When I'i4 cl++ Direct?'f 2 t: A circular object of degree m dt can also be used in rubé on an appropriate number body surface -1.

1 This metal moon I'+ (A) &yo, plate-like metal II Af
, can be used. In the case of a plate-like shape, it is flexible 11φ (appropriate holes can be made to improve the properties).

Absorption 1 (1, Interest・1 layer (B) 1zl used in the present invention
1. Impregnate with volatile liquid! However, it is necessary that it is not dissolved by the volatile liquid. Examples of materials used in the absorbent layer (B) include paper, cloth, cotton, felt, pulp powder, wood flour, wood wool, asbestos, millite, and absorbent materials. Natural resins, synthetic or semi-synthetic resins, continuous metal bodies, perforated ceramics, aggregates of stacked fibers, etc. Of course, these fees can be combined as appropriate.1. +-i'- can also be used.

The iQ/z knob method can be adopted as a method for fixing the absorbent layer (1) to the metal layer (5). is most conveniently -C,0, but such adhesive or contact χ
It is necessary that the adhesive does not dissolve or swell in the presence of a volatile liquid and lose its fixing function. An example of such an adhesive is (
・Acrylic resin shaft/? There are rubber-based adhesives that can be used, and double-sided adhesive tapes that use viscosity 1 and 1 can also be used effectively. An example of the adhesive is epoxy resin adhesive χ1111.

Adhesive layer (C) t. The adhesive layer (Q) must be a material that comes into contact with the human body surface C (-) and is a stone that is a nuisance to the temple skin. Such an adhesive Examples of 11 bodies include natural rubber, polyisobutylene, 2-ethylhexyl/acrylic acid ester, and butyl nitride acrylate. There are 11 acrylic ester polymers, etc.If necessary, hydrogenated rosin and other adhesives can be used to increase the adhesiveness of these and make them look more thorny. Lanolin and polybutene 11φC (lS agent: l=-) to increase adhesion +1 and curved lead oxide to obtain a filling reinforcing effect can also be blended.Furthermore, according to this book I', B; In order to further enhance the effect of using the term ``coating'' to cool the body surface, the adhesive layer (Q) contains a substance that provides a sensation of cooling, such as menthol, canol, etc. Methyl lyricylate, etc. may also be blended.Other than that, if necessary, a coloring agent, etc., which reduces the oxidation resistance of the adhesive, may also be blended.

Adhesive layer (q is a layer that fixes the body surface cooling term of the present invention to the human body surface m1 and also adheres closely to the human body surface to effectively exert a cooling effect). However, for example, when applying the facial cooling patch of the present invention to the arms, legs, forehead, etc., or when moving the body without using the patch, do not use strings or combs. The paste (14'4"
0 - It can be done by setting R.1 to the surface of the human body.

The volatile f1 liquid to be impregnated into the absorption 1/J-AA71 layer (1) is one in which the liquid, 1.. , and the 9-shaku strong flash 1'1 is stone, m Im +'l Ribetsu (3rd)
It is essential that it is something that cannot be easily understood. Examples of such volatile liquids include 1°, ethanol, water, I+2
-Folpers/diols, etc., and σ゛), either alone or in a mixture of two or more of them, can be used for the E-J effect. Among these, L-9 water is the most suitable (lζ is used) because it is easily large-sized and inexpensive. 2
Mix the seeds or more as appropriate -((To use 111)
The cooling effect can be effectively adjusted. In other words, the body surface cooling patch according to the present invention has a great cooling effect (!) immediately after the use. The first step is to use an ethanol mixed solution. :Also, if you want the cooling effect to last longer, use water containing 5-30% of 1,2-propanediol/1,2-propanediol.
・'? A mixed solution of 77'ol can be used.

It should be noted that the patch for cooling the human face obtained by carrying out the present invention has an adhesive layer (on the surface of Temporarily protect the surface of the adhesive.
Remove the note face on il and use it (-η
;1o・ku can also be done.

As is clear from the contents of the description, the body surface cooling term of the present invention is used to cool the body surface.
Extremely light compared to the objects used since YL; jl
- It is advantageous when made into a small volume, and does not require any cold storage in the IJ state, making it extremely convenient for storage, transportation, and 4S''r storage before use. Furthermore, even during use, a sufficient cooling effect can be obtained without causing any inconvenience when the user moves or exercises, and by replenishing volatile liquid depending on the material made, the same cooling effect can be obtained every time ( 4+ both j
υ].

The effects of the body surface cooling patch material of the present invention are as follows:
The heat source of work '1, which is absorbed for cooling, is used to cool the body surface in this 11 dimension, and the heat source of fusion jQ+ (7, iJl, and heat response Kou Alaishi”
, unlike the heat of solution, there is a much larger negative heat source with the same volume that can be absorbed into the heat of vaporization of a volatile liquid. It's being treated well.

Next, the content of the present invention will be explained in a more general manner with reference to Examples described below, but the content of the present invention is not limited to these Examples.

In addition, all parts in the examples shall mean heavy parts.

Example 1 Thickness 0.1 mm s ll □l rm % length 31
Two pieces of gauze of the same size on one side of cm/-1 cm were fixed together using double-sided adhesive tape, and this was molded into the shape shown in Fig. cm, protrusion height approximately 1 cm). A: Aluminum oxide of the formed molded material, 0 part of 2-ethylbekyl/lua acrylate, 0 part of vinegar (e: 9 by copolymerizing 1 part of ethyl
1) Lano 1. menthol per 100 parts of copolymer.
Add 1 part and knead to obtain +1 adhesive for about 25 J
It was extended to Minko.

Next, water (1OFIB: l..., 1,
It was impregnated with a water/ethanol mixed solution consisting of 10 parts of H-1 nitanol; f'J59, and was adhered to the buy list's forehead through the adhesive layer described in 2. Immediately after, I felt a sufficient cooling sensation on my forehead, and after that, I continued to feel the same feeling for about an hour. −〇During this period, I was in a state of stillness, walking, and intense exercise.
(:l・i-C also allows you to get the full effect of cooling the body surface without causing any discomfort,
I didn't feel like my forehead was falling off naturally.

Example 2 A polyurethane/resin open foam of the same size and thickness @ 1 ++ un (bubble diameter approximately 02 + lIm) was attached with double-sided adhesive tape on one side of the same aluminum Rhamno-I used in Example J. This was then molded into the shape shown in Figure 1 (protrusion spacing approximately] an, protrusion height approximately 1 cm).
.

A: Natural steel on the aluminum surface of the molded product, 1
(10 parts, 720 pieces of polyethylene-1s, 20 parts of polyethylene, hydrogenated Tl /; / l (10 parts, 279
710 parts, oxidized r++<lead+ fl fl parts, -1 -
and 1.5 parts of oxidation 11h inhibitor and kneaded]
t da adhesive 47) :< oμ Jt, J, 7),
(7 (-spread. Then, the polyurethane resin
1 Ir, 1 (・L body layer, 80 parts water, 1 ethanol ()
About 1 f of a water/ethanol/+, 2-propanediol mixed solution consisting of 1 part and 10 parts of 12-propanodiol
l? 4: It was immersed in sound and adhered to the forehead of Baneris 1 through the adhesive layer described in . Immediately after applying the product to the forehead, a bright cooling sensation was obtained, and the same cooling sensation continued for about 2 hours thereafter.

During this time, it is possible to cool the surface of the body without causing a feeling of discomfort even when walking or in a state of unpleasant exercise, and the effect of cooling can be sufficiently exerted. , I didn't feel like I was going to go 1-(11) naturally from the size of my forehead.

[Brief explanation of the drawing]

Figures 1, 4, and 5 are explanatory diagrams of the aspects of the body surface cooling term τ1 of the present invention; FIG. 2 is a partially enlarged cross-sectional view taken along line AA'. 1. Metal phase classification 2. Absorbent layer 3. Adhesive layer Figure 1 Figure 4

Claims (1)

[Claims] 1. The thickness is +1.05 mm and the thermal conductivity is 0.
1ca1/Qn-8eC・℃ or higher metal layer o'1(
One side of A) is impregnated with a volatile liquid (1 layer (13)) and the other side is made of a water activating agent layer (1 layer (13)) for body surface cooling. Now January.