JP2001292649A - Method for producing colored sand granule having adhesiveness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain colored sand granule having adhesiveness, solving a problem that since sand granule in a sand pit in a part, etc., has been stained with excreta of dog and cat, a plaything in which a sand pit is made in a box in home and a child plays with sand is prevailing, however, natural sand is used as it is in the plaything, the sand is not colored and poor in beautiful view. SOLUTION: The surface of sand granule is colored to give colored sand granule and then the colored sand granule is provided with an adhesive to retain viscosity for a long period of time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing colored sand particles having a strong bonding force and excellent formability.

[0002]

2. Description of the Related Art Since sand particles in sandboxes in parks and the like are contaminated with excrement of dogs and cats, playground equipment in which sandboxes are formed in boxes at homes to allow children to play with sand is becoming widespread.

[0003]

However, in such a playground equipment, natural sand is used as it is and it is not colored, so that there is a problem that the aesthetic appearance is poor.

[0004]

Means for Solving the Problems, Functions and Effects As means for solving such problems, the invention according to claim 1 provides colored sand particles by coloring the surface of the sand particles, The colored sand particles are made to adhere to the pressure-sensitive adhesive for a long period of time. Since the surface of each sand particle is colored, the desired coloring can be applied and the appearance is improved. In addition, since the adhesive is attached to the sand particles, the sand particles can be hardened into a desired shape without using water.

According to the second aspect of the invention, since colored sand particles are obtained by applying a paint to the surface of the sand particles, the sand particles can be easily colored by spraying or dipping.

According to a third aspect of the present invention, a colored sand particle is obtained by mixing a pigment exhibiting a desired color by firing, a flux and water, mixing this mixture into sand particles, and then firing to obtain colored sand particles. It has a ceramic shape with a glaze baked on the surface, and there is no risk of decoloring even after long-term use.

The invention according to claim 4 uses a rotary kiln for firing colored sand particles. Since the firing is carried out while rolling the sand particles, the sand particles are fused to form a dumpling. Can be prevented.

According to the invention of claim 5, since the size of the sand particles is 0.07 to 1.0 mm, appropriate plasticity is obtained when an adhesive is mixed, and the moldability is excellent.

According to the sixth aspect of the present invention, since the adhesive is wax, a suitable viscosity can be obtained, and the colored sand particles attached to the hand can be easily removed by washing with water.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A weight ratio of 100 to sand particles 100 composed of minerals mainly composed of quartz, feldspar and the like having a particle size of 0.07 to 1.0 mm is 2 and a pigment is used as a pigment. T505 blue manufactured by Aztec Co., Ltd. is mixed with an appropriate amount of water in a ratio of 2 to adhere the flux and pigment to the surface of the sand particles, and then baked at about 500 ° C. using a rotary kiln. The pigment thus obtained exhibited a blue color, and beautiful colored sand particles were obtained.

[0011] When three micro waxes (trade name, manufactured by Nippon Seiro Co., Ltd.) are mixed at a weight ratio of 3 with the colored sand particles 100 as wax, plasticity is generated due to the adhesive force of the wax, and a desired shape can be obtained. By adding water to the sand grains on the sandy beach to generate plasticity, not only can the play of making the desired molded article be performed at home, but the wax has a strong adhesive force, so that it is possible to perform fine modeling, and furthermore, the sand grains can be formed. Since the coloring is performed, there is an effect that the shaped article is excellent in aesthetic appearance.

Further, since the pigment is baked on the surface of the sand grains, the pigment does not peel off, can maintain the original color for a long period of time, and does not adhere to the hand, and the pigment adheres to the hand. The wax can be easily removed by washing with water.

In the present invention, as described above, besides coloring the sand particles by baking, the surface of the sand particles may be colored by applying a paint.

Continued on the front page (72) Inventor Toshichika Hirano 8-226, Nokuracho, Tajimi-shi, Gifu F-term (reference) in Shinto Ceramics Co., Ltd. 2B101 AA13 AA20 GB08 4J038 AA011 HA561 KA08 MA08 MA10 PA19 PB14 PC04

Claims (6)

[Claims] 1. A method for producing colored sand particles having tackiness, in which colored sand particles are obtained by coloring the surface of the sand particles, and then an adhesive having viscosity for a long time is adhered to the colored sand particles. 2. The method for producing colored sand particles having tackiness according to claim 1, wherein colored sand particles are obtained by applying a paint to the surface of the sand particles. 3. The adhesive composition according to claim 1, wherein a pigment, a flux and a water which exhibit a desired color by firing are mixed, and the mixture is mixed with sand particles and then fired to obtain colored sand particles. A method for producing colored sand particles having: 4. The method according to claim 3, wherein a rotary kiln is used for firing the colored sand particles. 5. The size of the sand grains is 0.07 to 1.0 mm.
The method for producing colored sand particles having tackiness according to claim 1 or 4, wherein: 6. The method for producing colored sand particles having tackiness according to claim 1, wherein the pressure-sensitive adhesive is wax.