JPH01104212A - Kitchen appliance for heat treatment such as rice cooker - Google Patents

Abstract

PURPOSE: To form a coating surface layer which is resistant to flawing and does not peel, to shorten the heat treatment time of food and to enhance deliciousness of the food by forming a far-IR absorptive and radiative material into superfine powder, incorporating this superfine powder into a fluororesin and applying the resin on the heat treating surfaces of kitchen appliances. CONSTITUTION: The far-IR absorptive and radiative material is formed into superfine powder. This superfine powder is made finer than the particles of the fluororesin, thereby, the resin particles are eventually made to enclose the far-IR powder and the mixing and kneading of the far IR powder with the fluororesin having a high release property are made possible. The fluororesin formed by mixing and kneading in such a manner is applicable on the kitchen appliance. At the time of coating, the fluororesin is subjected to baking and coating at a high temp., thereby, the surface treating and finishing of the fluororesin having the resistance to flawing and having no possibility of peeling are obtd. The food to be heated treated with such kitchen appliance is subjected to far IR heating by the far IR powder and, therefore, the heat treatment time is shortened. Since the internal penetrating force of the moisture into the food is intensified by the far-IR rays, the food is finished as the food having ample flavor.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to kitchen appliances for heat treatment, such as rice cookers, pots, pots, and frying pans.

``Prior art'' Frying pans coated with fluororesin are widely known. This type of kitchen equipment has many features, such as not burning food even when cooking without using oil, and being resistant to stains.

This is because the surface energy of fluororesin is low, and the ability to attract other substances is extremely weak, resulting in mold releasability.

This is due to the fact that the coefficient of static friction of fluororesin is extremely low, and furthermore, the coated surface of fluororesin does not allow any liquid to get mixed in.

In addition, fluororesin has a melting point of 260° C., is a nonflammable material, and is tasteless and odorless and does not affect the human body, so it is often used in kitchen utensils.

``Problems to be Solved by the Invention'' The first object of the present invention is to improve the above-mentioned fluororesin-coated kitchen appliances for heat treatment, and to improve the taste of heat-treated foods.

Therefore, the present invention utilizes far-infrared powder.

As mentioned above, fluororesin has low surface energy and has a significantly weak ability to attract other substances, so if far-infrared powder is simply mixed or kneaded with fluororesin, self-edge pressure agglomeration will occur. It does not blend well, and particles and bubbles form, causing the far-infrared powder and fluororesin to separate and peel off even after application.

A second object of the present invention is to solve such problems.

``Means for Solving the Problems'' Therefore, in the present invention, far-infrared ray powder made by ultrafine powder of a far-infrared absorbing and emitting substance is mixed into a fluororesin, and this is applied at least to the surface of a kitchen device in which food is heat-treated. We propose heat treatment kitchen appliances such as rice cookers, which are characterized by being configured as follows.

"Function" By making the far-infrared absorbing and emitting material into ultra-fine powder, which is even finer than the fluororesin particles, the resin particles wrap around the far-infrared powder, making it more effective against the fluororesin, which has strong mold release properties. The far-infrared powder can be mixed and kneaded, and the fluororesin thus mixed and kneaded can be applied to kitchen utensils.

When applying, the coating is baked at high temperatures, resulting in a surface treatment of the fluororesin (including far-infrared powder) that is free from scratches and peeling.

In the kitchen appliance coated as described above, the food to be heat-treated is heated by far-infrared rays using far-infrared powder.

That is, food is irradiated with far-infrared rays, which is a type of electromagnetic radiation. From this, the food being heat-treated absorbs far-infrared rays,
It is heated by the absorbed and converted thermal energy.

Far-infrared heating does not require a heat medium to transfer heat energy, so there is almost no heat loss due to transfer, and heat transfer is direct and linear, so food can be heated instantly.

Therefore, the heat treatment time using kitchen equipment is shortened, and the water is activated by far infrared rays.

The ability of water to penetrate into the food becomes stronger, resulting in a flavorful food.

"Example" Next, an example of the present invention will be described with reference to the drawings.

FIG. 1 shows an example implemented in an electric rice cooker, where 11 is the rice cooker body, 12 is the rice cooker lid, and 13 is the handle.

14 is an inner container, and 15 is a lid of the inner container 14 that is integrally attached to the rice cooker lid 12.

The rice cooker main body 11 is equipped with a known heating mechanism that converts electrical energy into heating energy to cook the rice in the inner container 14.

Further, as shown in FIG. 2, the inner container 14 and its lid 15 are coated with a fluororesin containing far-infrared powder to form a coating surface layer 16.

In this example, white porcelain, alumina, ferrous oxide, carbon,
Ultra-fine powder (approx.
3 microns) and mixed it with a fluid fluororesin to create a coating mixture. It has been confirmed that a high effect can be obtained when the mixing ratio is about 70% of the fluororesin and about 30% of the above-mentioned ultrafine powder. The above-described coating mixture is applied by applying an adhesive to the inner surface of the inner container 14, applying two coats on top of the adhesive, and then drying it by heating (approximately 400°C) to form the surface layer 16 of the fluororesin. be.

A coating mixture is applied to the lower surface of the lid body 15 in a similar process to form a surface layer 16 of fluororesin.

In the rice cooker configured as above, water molecules activated by far infrared rays emitted from far infrared powder penetrate into the rice, uniformly stabilizing the water absorbed by the rice and softening the properties of gluten. As a result, the mixture with starch becomes finer, allowing each grain of cooked rice to stand up and become sweet and flavorful.

In addition, since the thermal energy of far infrared rays heats the rice in a straight line, it has good internal penetration into the rice, shortening the cooking time, and the heat sterilization effect of far infrared rays can be expected.

Note that the surface layer 16 of the inner container 14 and the lid 15 coated as described above has a smooth surface and is hard to be scratched due to the characteristics of the fluororesin.

Although the present invention has been described above as an example of implementing the present invention in a tFi cooker, it can be implemented in the same way for kitchen appliances for heat treatment such as pots, pots, and frying pans. It is preferable to form an ultrafine powder of about 1 to 100 microns and mix and knead it with the fluororesin. It is also possible to apply a coating mixture containing such ultrafine powders.

Further, the coating M16 may be formed on the entire surface of the kitchen appliance, for example, the inner container 14 and the lid 15.

"Effects of the Invention" As described above, in the present invention, the far-infrared absorbing and emitting material is made into ultrafine powder, mixed with fluororesin, and applied to the heat-treated surface of kitchen appliances, so that the heat-treated surface is less likely to be scratched. The present invention provides a coating surface layer with no fear of peeling, shortens the time for heat treatment of food due to the effect of far-infrared heating, and provides a kitchen appliance for heat treatment that can enhance the taste of food.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view showing an example of an electric rice cooker in which the present invention is implemented, and FIG. 2 is an enlarged sectional view showing an inner container of the rice cooker and its lid. 11...Rice cooker body 12...Rice cooker lid 13...Handle portion 14...Inner container 15...Inner container lid 16...Koniteng surface layer

Claims (1)

[Claims] A kitchen for heat treatment such as a rice cooker, characterized in that far-infrared rays absorbing and emitting material is mixed into a fluororesin and applied to at least the surface of a kitchen appliance for heat-treating food. utensils.