JPH05186767A - Far-infrared-radiating powder - Google Patents

Abstract

PURPOSE:To prepare the title powder which radiates far-infrared rays efficiently and stably at a relatively low temp. by mixing a fine far-infrared-radiating powder comprising an inorg. oxide with a fine metal powder having a high thermal conductivity. CONSTITUTION:The particle diameters of a fine far-infrared-radiating powder comprising an inorg. oxide (e.g. silicon dioxide) (A) and a fine metal powder having a high thermal conductivity (e.g. aluminum) or/and a powder contg. a metal black body exhibiting a high catalytic effect on thermochemical reaction (e.g. palladium) (B) are adjusted to several hundredths to several mum, and the powders are mixed to give the title powder, which, being a fine powder, can be mixed with and uniformly dispersed in a synthetic resin, fiber, etc., thus giving a product which radiates energy uniformly from the entire surface. A pref. amt. compounded of component B is 1-30 pts.wt. based on 100 pts.wt. component A.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder for far infrared radiation capable of efficiently and stably emitting far infrared radiation in a relatively low temperature range.

[0002]

2. Description of the Related Art As far-infrared radiation substances existing in nature, there are many inorganic oxides such as silicon dioxide and the radiation efficiency is low, but it is known that these kinds of oxides emit far-infrared radiation even at room temperature. ing. Since this far-infrared radiation substance has a temperature dependence on its radiation, how to increase the radiation efficiency depends on how quickly the temperature (heat) enough to increase the emissivity is stably applied.

[0003]

It is believed that the problem of providing heat stably can be basically solved by utilizing the heat conduction effect of metal or the like. That is, a substance having a high thermal conductivity is mixed in the oxide. However, in general, there are many metals as substances having high thermal conductivity, and there is a drawback that they are easily deteriorated under the application of heat, resulting in lack of stability. If a metal that does not easily undergo this alteration and that can maintain high stability and thermal conductivity is used, it is almost limited to a noble metal such as gold.

The present invention has been made in order to solve the above problems, and an object of the present invention is to enable far infrared radiation with high radiation efficiency at a relatively low temperature and to have a high radiation efficiency. It is an object of the present invention to provide a powder for far infrared radiation capable of realizing stability and low cost.

[0005]

The present invention has the following constitution in order to achieve the above object. That is, the present invention provides a mixture of a far-infrared emitting powder of an inorganic oxide and a powder of a metal having a high thermal conductivity or / and a powder containing a black body of a metal having a high catalytic effect on a thermochemical reaction. Each of the powders is a powder for far infrared radiation, which is a fine powder having a diameter of several hundreds of microns to several microns.

Further, the present invention is a fine powder containing a far-infrared radiating powder of an inorganic oxide as a carrier, and a surface thereof having a black body made of a metal having a high thermal conductivity or / and a metal having a high catalytic effect for a thermochemical reaction. Alternatively, it is a powder for far-infrared radiation characterized by being a fine powder having a diameter of several hundreds of microns to several microns, to which a thin film is attached.

Further, according to the present invention, the far-infrared radiation powder is silicon dioxide, ferric oxide, titanium oxide, aluminum oxide, zirconia, calcium oxide, magnesium oxide,
A metal powder or thin film having a high thermal conductivity selected from inorganic oxides of sodium oxide and potassium oxide is gold,
Silver or copper, aluminum, tungsten, beryllium, selected from at least one of molybdenum, powder or thin film containing a black body of a metal having a high catalytic effect for thermochemical reactions, palladium, ruthenium, rhodium, osmium, iridium, It is a powder for far-infrared radiation having each of the above-mentioned constitutions, which is selected from at least one of rhenium.

[0008]

According to the present invention, the high temperature range (700-1300)
In addition to (K), a sufficient amount of energy radiation can be obtained in a relatively low temperature range (less than 700K). Further, the present invention is
Since it is a fine powder with a diameter of a few hundredths of a micron to a few microns, when mixed with synthetic resin, fibers, etc., it has good dispersibility in processing and can radiate energy uniformly from the entire surface of the processed product. There is an advantage that the Brownian motion is performed smoothly even when it is necessary to make it liquid. In particular, by using the above fine powder, the surface area is increased, and the addition of a metal having a high thermal conductivity and / or a metal having a high catalytic effect on the thermochemical reaction is more than 20% of the usual amount. The far infrared ray emissivity is improved by about 30%. The far infrared radiation powder according to the present invention is a catalyst for a thermochemical reaction with a metal powder having a high thermal conductivity, relative to 100 parts by weight of the far infrared radiation powder selected from the inorganic oxides. Total weight of the highly effective metal powder is 1 to 3
It is desirable that it is in the range of 0, and preferably in the range of 3 to 10 in view of the relationship between the degree of improvement in far infrared radiation emissivity and the product cost.

[0009]

EXAMPLES As described above, the present invention is based on inorganic oxides selected from silicon dioxide, ferric oxide, titanium oxide, aluminum oxide, zirconia, calcium oxide, magnesium oxide, sodium oxide and potassium oxide. The infrared radiation powder is mixed with powder of a metal having a high thermal conductivity selected from at least one of gold, silver, copper, aluminum, tungsten, beryllium, and molybdenum, or the powder or thin film is attached to the powder. Further, if necessary, a powder containing a metal black body having a high catalytic effect on a thermochemical reaction selected from at least one of palladium, ruthenium, rhodium, osmium, iridium, and rhenium is mixed, or the powder or A powder for far infrared radiation is formed by depositing the thin film. In this case, the far-infrared radiation powder has a high catalytic effect on the thermochemical reaction with the metal powder having high thermal conductivity with respect to 100 parts by weight of the far-infrared radiation powder selected from the inorganic oxides. It is desirable that the total number of parts by weight of the metal powder be within the range of 1 to 10.

The far-infrared radiation powder is formed into a fine powder having a diameter of several hundreds of microns to several microns. For example, the far-infrared radiation powder of an inorganic oxide has a diameter of about 2 microns. Of silicon dioxide is used, and gold having a fine diameter is made into a colloidal form and attached to the surface thereof. To 100 parts by weight of the powder for composite far-infrared radiation thus obtained, 3 parts by weight of fine palladium powder (palladium black) having a diameter of about 1 micron is added and mixed evenly. This powder can be used as it is or in the form of pellets depending on the application, and can be used by being mixed in the raw material at the time of shaping a resin molded product or spinning a synthetic fiber.

A solution is added to the powder of the above example to form a thin sheet, which is then dried to obtain a sheet having a thickness of 0.2 mm. Create a comparative sheet of 0.2 mm in wavelength and
The result of examining the relationship between the far infrared radiation heat quantity of μm and the surface temperature is as shown in FIG. 1, and the sheet according to the present invention (shown by the solid line) has a larger heat quantity than the comparative sheet (shown by the broken line). It was revealed that

Next, examples of use of the powder of the above example will be listed below. (1) Dechlorination experiment of tap water: Put tap water into two same glass glasses and put powder for far infrared radiation into one of them. After a few minutes, a chlorine reagent was added and the dechlorination state of the two glasses was examined. As a result, no yellow chlorine reaction was observed in the water containing the far infrared radiation powder, and a clear yellow chlorine reaction appeared in the water of the glass without the far infrared radiation powder.

(2) Experiment on effects on hair cosmetics, A, 1% by weight of powder for far-infrared radiation was mixed in cold perm wave agent, and the time course until finishing and feeling of finishing were observed, and a chemical solution of perm was found. The reaction time was shortened by 20 to 30% as a whole, and the finished gloss, elasticity, feel, and rise from the root of the hair were greatly improved.
Further, the fixing of the perm wave, that is, the improvement of the holding time, was observed, and the period during which the wave was taken was longer than that of the conventional perm method, and the perm lasted longer.

B, 1% by weight of far infrared radiation powder was mixed into the hair treatment agent, and the feeling of finish was observed. After several tests compared with the same treatment agent, a clear improvement in gloss, elasticity, and texture of the finished product was observed.

C, 1% by weight of far-infrared radiation powder was mixed in the hair dye, and the time course until the finish and the feeling of finish were observed, and as a result, the hair dyeing time was shortened by 30 to 50%, and the finish was rough. There is no stickiness or dryness, and the fixing of color and the durability are improved.

(3) Experiment of antifungal effect: Agar containing 5% by weight of far infrared radiation powder and agar not containing it are put in separate petri dishes, and stored in a refrigerator and cultured.
After 7 days, almost no mold was found in the petri dish containing the far-infrared radiation powder, but significant mold was found in another petri dish.

(4) Experiment of germination accelerating effect, cotton with 5% by weight of far infrared radiation powder mixed in water in different petri dishes, and cotton with just cotton soaked in water After putting it, several mung bean sprouts seeds were sown on it, and the time difference of germination was observed. As a result, the germination rate of mung bean sprouts in a petri dish mixed with far infrared radiation powder is very high,
It was also observed that the number of days required for germination was shortened.

By the way, when the metal having a high catalytic effect on the thermochemical reaction used in the present invention is palladium, it exhibits excellent properties in dehalogenation and carbonation in addition to hydrogenation reaction, and in the case of ruthenium, Excellent properties for oxidation reaction, dehydrogenation reaction, decomposition reaction for iridium, carbonation, reductive amination, oxidation reaction for rhodium, selective hydrogenation and metathesis reaction for rhenium, and selective hydrogenation reaction for osmium Therefore, a suitable metal may be used depending on the application.

[0019]

As described above, since the far infrared radiation powder according to the present invention is a fine powder, it can be easily mixed uniformly in the raw material and is also suitable as a raw material for various moldings. Thus, it is possible to obtain a sufficient and highly uniform energy radiation amount for far infrared rays. Furthermore, heating and drying promotion effects, plant and agricultural product growth effects, fermentation aging period shortening effects, human body sweating, analgesic and metabolic function promoting effects,
The water molecule has a low molecular weight, and cosmetics and pharmaceuticals have high penetrability.

Further, according to the far-infrared ray radiating powder of the present invention, electricity and sharpness can be recovered and other fungicidal effects can be obtained by simply putting it together with a consumed dry battery and a blunt blade. It is clear from various experiments that far-infrared radiation alone exerts a unique effect that cannot be explained, and it is a practically excellent invention because it has the advantage that its application can be further expanded.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of the present invention and a comparative example in comparison with the relationship between far infrared radiation heat quantity and surface temperature.

Claims (3)

[Claims] 1. A mixture of a far infrared radiation powder of an inorganic oxide and a powder of a metal having a high thermal conductivity or / and a powder containing a black body of a metal having a high catalytic effect on a thermochemical reaction. The powder for far-infrared radiation is characterized in that each powder is a fine powder having a diameter of several hundreds of microns to several microns. 2. A fine powder or a thin film containing a black body made of a metal having a high thermal conductivity and / or a metal having a high catalytic effect for a thermochemical reaction on a surface of which is a far infrared radiation powder of an inorganic oxide. A powder for far-infrared radiation, characterized in that it is a fine powder having a diameter of several hundredths of a micron to several microns. 3. The far infrared radiation powder is selected from among inorganic oxides of silicon dioxide, ferric oxide, titanium oxide, aluminum oxide, zirconia, calcium oxide, magnesium oxide, sodium oxide, potassium oxide, and heat. A powder or thin film of a metal having a high conductivity is selected from at least one of gold, silver, copper, aluminum, tungsten, beryllium, and molybdenum, and a powder containing a black body of a metal having a high catalytic effect on a thermochemical reaction. Or the thin film is palladium, ruthenium, rhodium, osmium, iridium,
The powder for far infrared radiation according to claim 1 or 2, which is selected from at least one of rhenium.