JPS5810779A - Fiber mixed clay - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to fiber-mixed clay whose main component is natural clay such as Honbushi clay and Gairome clay.

Clay made by mixing natural clay with shatter, silica sand, etc. has been commercially available for use as teaching materials, for example, as Rakuyaki clay.

The present inventor has been involved in the sales of Rakuyaki clay etc. for many years.
We focused on the fact that the Rakuyaki clay that has been commercially available is not necessarily sufficient in terms of making a queen.

In other words, as mentioned above, Rakuyaki clay is used for teaching materials, and at that time, it is shaped by schoolchildren into various B shapes and then dried, or in some cases further fired, and used as crafts. However, with conventional Rakuyaki clay, it is not possible to make a workpiece by pasting it onto the core material of an empty can or empty bottle; However, during the drying stage, large cracks extending to the surface of the clay layer occurred, and a KFi << phenomenon occurred between the core material and the clay layer, making it virtually impossible to use it as a workpiece. .

The inventor of the present invention has solved the drawbacks of conventional Rakuyaki clay as described above, from the viewpoint that if Rakuyaki clay can be combined with the 8 materials, it will produce a good workpiece [2], and its value as a teaching material will be greatly improved. As a result of understanding and trying to eliminate the drawbacks, the present invention 11CfIll has been achieved, which can achieve the intended purpose extremely economically and practically.

That is, in the present invention, one or more types of combustible fibers selected from animal fibers, vegetable fibers, recycled fibers, semi-synthetic fibers, and synthetic fibers are mixed in an amount equivalent to 3 to 8% by weight of dry natural clay. The present invention provides a fiber-mixed clay whose main component is natural clay, which is characterized by the following.

More specifically, the fibers used in the present invention include s, hemp,
Wool, silk, rayon, acetate, nylon, vinylon, tetron, acrylic, etc. Among these, cotton is particularly good.

The amount of fiber mixed into natural clay is 3~
The limit was 8% by weight, because the fiber content was 3% by weight.If the amount was too small, the effect of fiber inclusion would not be seen, and the fiber content was 8% by weight.
This is because if the number is more than 4, the effect of mixing fibers can be seen in the drying stage of the workpiece, but in the firing stage the fibers are burned and the workpiece becomes too porous, resulting in a mold with insufficient strength.

Proper removal of fibers mixed into natural clay, approximately 2~s
If the length of the fibers is too short, the effect of mixing the fibers will not be observed, and conversely, if the length of the fibers is too long, it will not be possible to mix the fibers evenly and uniformly into the natural clay.

In order to obtain the fiber-mixed clay according to the present invention, as in the case of conventional Rakuyaki clay, rather than using raw natural clay, the raw natural clay is subjected to well-known processes such as drying, crushing, and sieving to some extent. It goes without saying that it needs to be used in mourning. Furthermore, in order to obtain the fiber-mixed clay according to the present invention, it is appropriate to also mix in other additives such as silica sand and chamotte, as in the case of conventional Rakuyaki clay.

As is clear from the above description, the fiber-containing clay according to the present invention is produced by pasting it on the core material of an empty can or bottle, molding it, and then drying it. Even when the clay layer is made into a workpiece by drying or fired and then made into a workpiece, there is almost no cracking in the clay layer, and there is no VC or peeling phenomenon between the core material and the clay layer. It never happens.

Of course, the fiber-mixed clay according to the present invention can also be formed into a workpiece by molding and drying it alone without using a core material. This makes it possible to obtain a workpiece that is stronger in terms of strength than the workpiece that was previously used. When a workpiece obtained by molding and drying without using such a core material is further fired to produce a fired material, the amount of fiber mixed in according to the present invention is higher than in the case of clay with no fiber mixed in. In the case of clay, the workpiece will be weak in strength, but the fired workpiece obtained from the fiber-mixed clay according to the present invention mixed with cotton fibers, and the fact that no fibers are mixed in, and 1- According to a comparative drop test with a fired workpiece made from conventional Rakuyaki clay under the same conditions as above, there is almost no difference when the workpiece is thin (approximately 5 mm thick).

As described above, the fiber-mixed clay according to the present invention has high industrial efficiency, especially as a craft clay for amateurs.

patent applicant Small Matsu Toshihito agent (6jza) Patent attorney Kanni Ida

Claims (1)

[Claims] ■ One or more combustible fibers selected from animal fibers, vegetable fibers, recycled fibers, semi-synthetic fibers, and synthetic fibers are mixed in an amount equivalent to 3 to 8 weight tsK of dry natural clay. A fiber-mixed clay whose main component is natural clay.