JP2000007470A - Radiation generating ceramic and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable to easily apply to a desired purpose in the various application of a specific ore, to enable to keep the utilization efficiency of the specific ore high and to enable to exhibit the effect of the specific ore to each purpose 54 application at most. SOLUTION: This radiation generating ceramic is composed of a ceramic base formed from an unglazed pottery fired in a prescribed shape and a radiation generating ceramic layer applied on the ceramic base. The ceramic layer consists essentially of the fine powder of the specific ore generating radiation such as a so-called medicinal stone existed in natural or tourmaline ore.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to radiation generating ceramics.

[0002]

[Description of Related Art] Various effects of special ore called medicinal stone or tourmaline have been known for a long time. Depending on how it is used, for example, it has sterilizing and antibacterial properties, promotes mineralization or weak alkalinization of water, etc., has a deodorizing and purifying effect on water or air, has a gas purifying effect, and Is effective in promoting blood circulation or eliminating low back pain, stiff shoulders, lack of sleep, and muscle fatigue. The effectiveness of these special ores is believed to be due to the radiation they emit. The effectiveness of this radiation depends on the surface area generated, and it is considered that the effect increases as the surface area increases.

[0003]

By the way, in order to enjoy the above-mentioned various effects of this special ore, it is necessary to adjust the form of the ore so that the effect is exhibited at the maximum efficiency in each purpose application. Is required. However, since these ores are naturally occurring, it has not always been easy to suitably adapt them to a desired purpose. For this reason, there was a problem that the ore was wasted or the utilization efficiency was reduced otherwise.
The present invention has been made in view of such circumstances, and can be easily adapted to a desired purpose in view of various kinds of uses of the special ore. It is an object of the present invention to keep the efficiency high and to maximize the effects of the special ore for its intended use.

[0004]

The present invention for solving the above problems has the following features. According to one feature of the present invention, there is provided a radiation-generating ceramic comprising a ceramic base constituted by unglazing fired in a predetermined shape, and a radiation-generating ceramic layer applied on the ceramic base. Is done. In this preferred embodiment, the ceramic layer contains, as a main component, fine powder of a special ore that generates radiation such as a so-called naturally occurring medicinal stone (multi-element coexisting special ore) or tourmaline (tourmaline ore). The ceramic layer is about 1 mm or less,
Preferably, it is applied on the unglazed base in the range of about 0.5 mm to 1 mm.

The unglazed ceramic base can be formed into various shapes depending on the application.
According to another aspect of the present invention, there is provided a method of manufacturing the radiation-generating ceramic. That is, a material having radiation generating properties is pulverized, and a mixture of about 90% by weight or more of the pulverized material, ceramic paste, and glaze is dissolved in water, and the mixture dissolved in water is fired into a predetermined shape. About 30%
From about 900 ° C up to 1
It is characterized by heating to 300 ° C. and firing.

[0006] In the above, the reason that the mixture containing the radiation generating material is dissolved in water to form a paste and then applied to the ceramic base is to ensure the fixability to the surface of the ceramic base. Further, it is preferable to apply the paste-like mixture to a ceramic base, dry the applied material, and then fire it. The pottery chemical paste (CMC) is preferably present in the mixture at about 0.
3% to 0.5% by weight.
The glaze is preferably a transparent glaze, which is contained in the mixture at about 10% by weight. Less than about 90 weight percent of the material having the radiation properties will not provide the desired efficacy.

[0007] The mixture containing the radiation-generating material dissolved in water to form a slurry is applied, and a layer of the mixture is formed on an unfired ceramic base, which is then fired. In this case, the temperature of the kiln is about 750 in about 8 to 9 hours after the start of temperature rise.
The temperature is gradually increased from 800C to 800C. Then raise the temperature to 8
The maximum temperature is from about 1000 ° C. to about 1300 ° C. over 〜9 hours. It takes about 20 to 24 hours to reach the maximum temperature after being placed in the kiln. When the temperature is controlled and the maximum temperature is reached at the above-described heating rate, the firing is substantially completed. Then, the temperature in the kiln is naturally cooled to about 100 ° C. or less, and the fired product in the kiln is taken out. In addition,
As the kiln, an electric kiln is preferable because temperature control is relatively easy.

[0008] The unglazed base serving as a base for applying the above-mentioned mixture containing a radiation-generating material has a shape, an appropriate shape, depending on a specific use for exhibiting the characteristics of the radiation-generating material.
The size and the like are determined. In this case, it is desirable to increase the surface area as much as possible by forming corrugations or irregularities on the surface of the ceramic base. This is because the effect of the radiation-generating ceramic as the final product depends on its surface area. For example, it is known that the medicinal stone or tourmaline used in the radiation-generating ceramic according to the present invention has sterilizing and antibacterial activities. Therefore, the radiation-generating ceramic can be used for purifying drinking water. In this case, the ceramic according to the present invention may be used as a filter. For this purpose, the size, shape, and the like are appropriately set so as to be compatible with the water purification device. In this case, the arrangement, shape, and size are set so that contact with the flowing water occurs evenly and efficiently. For example, a conical shape, a pipe shape, or the like can be set to any form that can exhibit a desired filter function.

As described above, medicinal stone and tourmaline have an effect of promoting mineralization or weak alkalinization of water. When used for this purpose, the unglazed ceramic base may be fired in a cup or cup shape to form a ceramic layer on the surface. Further, effects such as blood circulation promotion can be exerted by applying the effect to a predetermined pot of the body. For this purpose, a disc-shaped unglazed ceramic base having a diameter of about 20 mm to 40 mm and a thickness of about 2 mm to 7 mm is formed, and the mixture containing the radiation generating material is applied to the surface thereof. do it.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below. The present example relates to a case of producing a radiation-generating ceramic chip capable of eliminating blood circulation promotion, low back pain, stiff shoulders, lack of sleep, muscular fatigue, and the like, by using it against a body pot. In this example, first, an unfired ceramic base for manufacturing the ceramic chip is manufactured. The procedure for manufacturing the ceramic base will be described. First, porcelain clay and feldspar powder or semi-porcelain material are prepared. It is kneaded well and formed into a desired shape. In this case, it is suitable for mass production in that the press forming can be easily performed in a fixed shape.

[0011] In this case, it is important to perform molding so as not to cause cracks. After molding, air drying is performed. Next, the unfired ceramic base is fired at a heating rate of about 30 ° C. to 100 ° C./hour until the maximum temperature becomes about 750 ° C. to 800 ° C. Next, a mixture containing a radiation generating material is prepared. In this operation, first, fine powder of a special ore that generates radiation such as medicinal stone (multi-element coexisting special ore) or tourmaline (tourmaline ore) is formed. The analysis values of this special ore are shown in FIGS. The special ore used as the raw material is pulverized so as to have a particle size of about 1.8 to 3.0 μm. Then, a mixture containing the above-mentioned fine ore fine powder to be applied on the unglazed ceramic base formed by the above procedure as a main component, that is, about 90% by weight or more of the above-mentioned pulverized material, ceramic chemical paste, and glaze is prepared. .

In this case, the ceramic paste for ceramics (CMC) is
Preferably, about 0.3% to 0.5% by weight is included in the mixture. Further, as the glaze, a transparent glaze is preferably contained in about 10% by weight of the mixture. Also, glazes containing metal are not preferred. If the fine powder of the special ore contained in the mixture is less than about 90% by weight, the effect of the special ore cannot be obtained at a desired level. Next, the above mixture was dissolved in water, and applied to the surface of the unglazed ceramic base.
A layer having a thickness of about 1.0 mm is formed. The mixture dissolved in water is preferably prepared in the form of a slurry having a degree of viscosity of water.

Then, a material having a layer of the radiation generating material having the desired thickness to which the mixture is applied on the surface is formed and dried. Next, this is put in a kiln and fired. In this case, the temperature of the kiln is about 750 ° C in about 8 to 9 hours after the start of heating.
The heating temperature of the kiln is controlled so as to have a heating rate such that the temperature reaches from 800 ° C to 800 ° C. Then, raise the temperature further,
Heat the kiln to have a maximum temperature of about 1000 ° C. to about 1300 ° C. over 9 hours. As a whole, the heating of the kiln is controlled so that it takes about 20 to 24 hours from the time when the kiln is put in the kiln until the temperature reaches the maximum temperature. If the heating rate is too fast, care must be taken because cracks occur. When the special ore is medicinal, the maximum temperature in the kiln is about 110
If the temperature is controlled between 0 ° C and 1300 ° C and it is tourmaline,
It is preferable to control the maximum temperature in the kiln to about 950 ° C. to 1000 ° C.

After the temperature of the kiln reaches the above maximum temperature,
Cool the kiln naturally. When the temperature in the kiln becomes about 100 ° C. or less, the fired product inside is taken out.

[0015]

As described above, according to the present invention, various effects possessed by special ores can be effectively exhibited with a simple structure according to the intended use.

[Brief description of the drawings]

FIG. 1 is a diagram showing a component table of a special ore according to one embodiment of the present invention;

FIG. 2 is a diagram showing a component table of a special ore according to another example of the present invention.

Claims (2)

[Claims] 1. A radiation-generating ceramic comprising a ceramic base formed by unglazing fired in a predetermined shape, and a radiation-generating ceramic layer applied on the ceramic base. 2. A material having radiation-generating properties is pulverized,
A mixture comprising 90% by weight or more of the above-mentioned pulverized material, pottery chemical paste, and glaze is dissolved in water, and the mixture in a state of being dissolved in water is applied on unfired ceramics fired in a predetermined shape, and is heated to about 30 ° C. Up to about 900 ° C at a heating rate of ~ 100 ° C / hour
A method for producing radiation-generating ceramics, comprising heating the mixture to a temperature of from 1300 ° C. to firing.