JPH0467085A - Clay - Google Patents

Abstract

PURPOSE:To obtain the clay which is odorless, is least toxic and safely usable by infants, etc., by using a glycol deriv. as an essential component and including water-soluble high-absorptivity material, water, inorg. powder, and release lubricant therein. CONSTITUTION:The glycol deriv. is used as the essential component and the water-soluble high-absorptivity materials, water, inorg. powder, and release lubricant are included therein, by which the clay having the necessary clayey and plastic properties as the clay is obtd. The glycol deriv. includes, for example, polyalkylene glycol, polyethylene glycol, etc. The water-soluble high- absorptivity materials are used to properly adjust moisture by absorbing the moisture of the clay and include, for example, an acrylic acid/vinyl alcohol copolymer, etc. The inorg. powder is used to absorb the oil component of the clay and includes, for example, talc, clay, calcium carbonate, etc. The clay which has the extremely low toxicity is obtd. and the roughening of hand is prevented even after long-term use.

Description

[Detailed description of the invention] <Industrial application field> TECHNICAL FIELD This invention relates to improvements in working clay.

<Prior Art> Since clay for construction is generally used by young children and school children, it is required to be less toxic even if accidentally put into the mouth.

For this reason, craft clays that are mainly composed of starches have been widely known.

For example, Japanese Patent Publication No. 62-6235 discloses a method for producing clay for crafts by using gelatinized rice flour as the main raw material, adding water-soluble salts, etc., and kneading the mixture.

However, since the craft clay obtained by this method is mainly composed of gelatinized rice flour, which is a starch, there is a problem that it emits a strong odor of starch and may be carried by children.

In addition, since water-soluble salts are added, there is a problem that hands become rough after long-term use, which is particularly undesirable for infants and the like who have sensitive skin.

<Problem to be solved by the invention> Ganto Motoyama conducted repeated research to solve this problem, and as a result,
We focused on the fact that glycol derivatives are odorless and have extremely low toxicity, and are currently used in products such as Mikuyu baby oil and Hanning Cream 1 lipstick. I tried not to make it.

However, glycol derivatives alone cannot provide the clay with the necessary flexibility and plasticity.

Therefore, it was discovered that by using a glycol derivative as the main component and incorporating water-soluble superabsorbent substances, water, inorganic powder, and a mold release wetting agent, it was possible to provide the degree of t and plasticity necessary for clay, and completed the present invention. did.

An object of the present invention is to provide an odorless clay that does not irritate hands even after long-term use.

<Means for solving RB> The present invention solves the above problems by providing a clay having the following characteristics.

The clay of the present invention is composed mainly of glycol derivatives. This further contains at least water-soluble superabsorbent substances, water, inorganic powder, and a release wetting agent.

As mentioned above, glycol derivatives are odorless and have extremely low toxicity, so they are currently widely used in facial oils such as baby oil and vanishing creams, such as polyalkylene glycol and polyethylene glycol.

Examples include polypropylene glycol 5 polyoxyethylene glycol.

Water-soluble superabsorbent substances are used to adjust the moisture content as appropriate by absorbing moisture from clay, and include, for example, acrylic acid/vinyl alcohol copolymer, sodium alginate, sodium polyacrylate, carboxymethylcellulose, methylcellulose, and polyethylene oxide. The water-soluble superabsorbent substances are preferably blended in a proportion of 1 to 50 parts by weight per 100 parts by weight of the glycol derivative; if it is less than 1 part by weight, it will become sticky and stick to the hands; This makes the clay brittle.

Inorganic powders are used to absorb oil from clay, such as talc, clay, and calcium carbonate. This inorganic powder is preferably blended in a proportion of 1 to 50 parts by weight per 100 parts by weight of the glycol derivative.
If the amount is less than 50 parts by weight, the clay will become sticky and stick to the hands, while if it is more than 50 parts by weight, the clay will become sticky.

The release moistening agent maintains the viscosity of the clay, and by adding it, it can be kept in a soft state without solidifying at all times.For example, there are liquid paraffin, liquid isoparaffin, in, etc.

The mold release wetting agent is preferably blended in a ratio of 1 to 30 parts by weight per 100 parts by weight of the glycol derivative; if it is less than 1 part by weight, the clay will become hard, while if it is more than 30 parts by weight, the oil in the clay will become hard. It comes to the surface.

The mixing ratio of water to 100 parts by weight of the glycol derivative is preferably 1 to 50 parts by weight; if it is less than 1 part by weight, the clay will lose the necessary plasticity, while if it is more than 50 parts by weight, it will become sticky and stick to the hands. Put it away.

<Function> In the present invention, the main component is a glycol derivative, and by including water-soluble superabsorbent substances, water, inorganic powder, and a release wetting agent, it has the viscosity and plasticity necessary for clay. can be made into something.

In addition, since it is composed mainly of glycol derivatives,
It can be made odorless, and the strong odor characteristic of starch, which is conventional, can be prevented. Moreover, the toxicity can be made extremely low.

On the other hand, it contains water-soluble superabsorbent substances, water, inorganic powder, and mold release wetting agents in the glycol derivative-based product, and does not contain water-soluble salts as in conventional products. 8. Preferred embodiments of the present invention will be illustrated below.

Example 1 Polyalkylene glycol Sodium alginate talc Liquid isoparaffin water (blending ratio) 100 parts by weight 40 parts by weight 40 parts by weight 30 parts by weight As a result of measurement based on the test method (JIS K2530), a value of 200, which is suitable for the hardness of clay, was obtained. Moreover, it had sufficient plasticity as clay.

Example 2 (Blending ratio) Polyalkylene glycol 100 parts by weight Sodium alginate 40 parts by weight Talc
40 parts by weight Liquid isoparaffin 30 parts by weight Water 50 parts by weight Glycerin 10 parts by weight or more In Example 2, glycerin 9 such as pharmacopoeial glycerin was added to the blending ratio of Example 1 above. When used, glycerin can cover the skin of the human body to prevent moisture from being absorbed from the human body, and is preferably blended in a proportion of 1 to 40 parts by weight per 100 parts by weight of the glycol derivative. If the amount is less than 1 part by weight, the above effects will not be exhibited, while if it is more than 40 parts by weight, glycerin will ooze out onto the surface of the clay. As mentioned above, the clay of the present invention does not contain any water-soluble salts, so it will not irritate your hands even if you use it for a long time. It can prevent it from getting rough. In this respect, it is particularly suitable for infants and the like who have sensitive skin. In addition, in this Example 2 as well, J
The hardness of the clay according to the grease penetration test method of IS K 2530 was 2°. Moreover, it had sufficient plasticity as clay.

(Results of a sensory test) Next, the results of a sensory test regarding odor for the clays obtained in Example 1 and Example 2 are shown above.

None of the above answered that they smelled bad.

By configuring as described above, it is possible to make it odorless, and it is possible to prevent the coercion peculiar to starch as in the past. Moreover, toxicity can be made extremely low.

Therefore, it can be used safely and favorably by children and the like.

In addition, unlike conventional products, water-soluble salts are not added, so it is possible to prevent hands from becoming rough even after long-term use.

Furthermore, by adding glycerin as in Example 2, it becomes possible to prevent hands from getting rough even more effectively.

In addition, in the example illustrated in this example, no dye is added, but it is not limited to the above embodiment, and an appropriate amount of dye may be added to color the product.

<Effects of the Invention> As described above, the present invention uses a glycol derivative as a main component, and by incorporating water-soluble superabsorbent substances, water, inorganic powder, and joint-type wetting agent into this, the viscosity and flexibility required for clay can be achieved. It can be made to have a gender.

In addition, since it is composed mainly of glycol derivatives,
It can be made odorless, and the coercion peculiar to starch, which is conventional, can be prevented. Furthermore, it can be made to have extremely low toxicity, making it safe for use by infants and the like.

On the other hand, it contains water-soluble superabsorbent substances, water, inorganic powder, and a hoof-shaped humectant in addition to glycol derivatives as its main component, and does not contain water-soluble salts as in conventional products. It can prevent your hands from getting rough even if you use it for a long time.

Thus, the present invention has been able to provide a useful clay that can be used safely and favorably by young children, and which does not cause rough hands when used.

Claims (1)

[Claims] 1. It is composed mainly of glycol derivatives, and furthermore,
A clay characterized in that it contains at least water-soluble superabsorbent substances, water, inorganic powder, and a mold release moistening agent.