JPH0733554A - Pasty coloring material and method for dyeing stone using the same - Google Patents

Abstract

PURPOSE:To obtain a pasty coloring material for coloring the surface of a stone material in one or more colors or partially coloring without impairing touch or quality feeling of the stone material of its own and to provide a for dyeing the stone material. CONSTITUTION:A pasty coloring material comprising a water-soluble organic solvent, a thickening agent, a resin and dye is brought into contact with a natural or an artificial stone to dye the natural or the artificial stone.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paste-like coloring material and a dyeing method for imparting various colors to natural stones and artificial stones to create a colorful living environment.

[0002]

2. Description of the Related Art Various methods for coloring natural stones such as marble have been tried in the past, but JP-A-54-155217,
As disclosed in JP-A-57-34087, JP-A-62-46982, JP-A-63-307180 and the like, only the dipping method of dipping in a solution is performed. However, the conventional dyeing method by dipping has a problem that not only can the stone surface be dyed in the same color tone because the entire stone material is dipped in the dyeing solution, but also the back surface that does not need to be dyed. .

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a single color on a stone surface without impairing the original feel and texture of the stone. The present invention provides a paste-like coloring material and a dyeing method for applying the above different coloring or partial coloring.

[0004]

Means for Solving the Problems As a result of intensive studies to solve the above problems, the inventors have dissolved a dye in a water-soluble organic solvent and added a thickener to increase the viscosity. When the color material was placed on the granite, it was found that only the contact portion was uniformly dyed, and the present invention was completed. That is, the present invention provides a paste-like coloring material comprising a water-soluble organic solvent, a thickener and / or a resin and a dye, and a stone dyeing method using the same.

The water-soluble organic solvent referred to in the present invention refers to a solvent which is compatible with water and has good permeability to stone materials.
Ketones such as acetone, methanol, ethanol, propanol, diacetone alcohol, tetrahydrofurfuryl alcohol, ethylene glycol, propylene glycol, hexylene glycol, glycerin, diethylene glycol, alcohols such as polyethylene glycol, ethylene glycol monomethyl ether, ethylene glycol mono Glycol ethers such as phenyl ether, diethylene glycol monomethyl ether and diethylene glycol dimethyl ether, amides such as N, N-dimethylformamide and 2-pyrrolidone, ethers such as tetrahydrofuran and dioxane, morpholine,
Examples include amines such as triethanolamine, aprotic polar solvents such as dimethylsulfoxide, sulfolane, and hexamethylphosphoramide. One kind or a combination of two or more kinds is used, but one having a small odor is preferable. .

Since the water-soluble organic solvent is well miscible with water, there is an advantage that water can be used in the step of washing the pasted coloring material adhered after dyeing. However, when a paste-like coloring material that uses a highly volatile water-soluble organic solvent is brought into contact with the stone surface, it is preferable to perform it in a sealed state to prevent evaporation.

In the present invention, the thickener and the resin are used to prevent the outflow of the coloring material, to suppress the evaporation of the water-soluble organic solvent, and to fix the dye that has penetrated into the crystal grains of the stone material. , Cellulose derivatives such as hydroxypropylcellulose, hydroxypropylmethylcellulose and carboxymethylcellulose, polysaccharides such as alginic acid and propylene glycol alginate, polyamides such as polyvinylpyrrolidone, partially saponified polyvinyl alcohol, polyacrylonitrile, acrylic resin, epoxy resin, acetic acid Polymer compounds such as vinyl resin and resorcinol resin may be used, and they may be used alone or as a mixture, but those which dissolve or swell in a water-soluble organic solvent and bring about a high thickening effect are preferable.

The amount used is in the range of 0.1 to 30% by weight, preferably in the range of 0.5 to 10% by weight, and the viscosity is 3000 cps or more. If it is less than 0.1% by weight, the viscosity is low and it easily flows, and it spreads and the dyeability deteriorates.
If it is more than 10% by weight, the viscosity is too high and the work becomes difficult.

The dye used in the present invention may be any dye that is classified as a solvent color in the color index, such as Kayaset K series manufactured by Nippon Kayaku Co., Ltd., Varifast Color series manufactured by Orient Chemical Industry Co., Ltd. And those soluble in a water-soluble organic solvent are preferable.

The paste-like coloring material of the present invention is prepared by dissolving a dye in a water-soluble organic solvent and then adding a thickening agent and / or a resin to thicken it.
Alternatively, it can be prepared by a general method such as adding a thickener and / or a resin to a water-soluble organic solvent to thicken it, and then dissolving the dye. The stone dyeing method using the paste-like coloring material of the present invention can be performed as follows. An appropriate amount of the pasty coloring material of the present invention is applied to or adhered to the dyed portion of the stone material from which surface dirt has been removed according to a conventional method and brought into contact therewith. If necessary, place it in a closed container, leave it until the desired depth of color is obtained, and then wash it thoroughly with water to obtain a dyed stone material. Since the water-soluble organic solvent is used, the paste-like coloring material can be easily washed off with water alone, but if necessary, the paste-like coloring material is treated with a solvent that azeotropes with water for finishing.

Natural stones and artificial stones to be dyed in the present invention include natural stone materials such as marble and granite (granite),
Artificial stone materials such as artificial marble manufactured by adhering stone pieces with resin or the like are included, and also include a combination of natural stone and artificial stone. Water can be added to the pasty coloring material of the present invention if necessary for viscosity adjustment.

[0012]

EXAMPLES The present invention will be described in detail below with reference to examples. Example 1 To 200 g of diethylene glycol monomethyl ether, 3 g of hydroxypropyl cellulose was gradually added with stirring to obtain a viscous liquid. Epoxy NC-700 on this viscous liquid
4 g of 0 (epoxy resin; manufactured by Nippon Kayaku Co., Ltd.) and 10 g of Color Index Solvent Red 122 are dissolved to obtain the pasty color material of the present invention.

EXAMPLE 2 10c vertically on the surface of a stone material obtained by polishing the surface of granite to a mirror surface.
The paste-like coloring material prepared in Example 1 is poured into a frame of m, 10 cm in width and 1 mm in height, left for 15 hours, and washed thoroughly with water to obtain a dyed granite.

Example 3 Carbopol 87 was added to 1000 g of polyethylene glycol.
2 (polyacrylic acid; BF Goodrich) 10 g was gradually added with stirring, and then epoxy NC-7000
(Epoxy resin; made by Nippon Kayaku) 20 g is added to make a viscous liquid. Kayaset Yellow K-CL to 300g of this viscous liquid
15 g of (made by Nippon Kayaku) is dissolved to obtain a yellow pasty color material of the present invention. Kayaset Red K in 300g of this viscous liquid
15 g of -BL (manufactured by Nippon Kayaku) is dissolved to obtain a red paste-like coloring material of the present invention. 15 g of Kayaset Blue K-FL (manufactured by Nippon Kayaku) is dissolved in 300 g of the viscous liquid to obtain a blue pasty coloring material of the present invention.

Example 4 The three color paste-like coloring materials prepared in Example 3 were applied to three places on the surface of the stone material from which the surface of natural marble was removed, and the mixture was allowed to stand for 6 hours and then thoroughly washed with water. Obtain dyed natural marble.

Example 5 After dissolving 7 g of Varifast Blue 1603 (Orient Chemical Co., Ltd.) in a mixed solution of 190 g of methanol and 10 g of triethanolamine, 5 g of alginic acid was gradually added with stirring to give a blue pasty color of the present invention. Get the wood.

Example 6 A polyethylene film of the same size as the stone material on which the paste-like coloring material prepared in Example 5 was applied in a corrugated manner was placed on the surface of the stone material from which the dirt on the surface of the artificial marble was removed, followed by a polyethylene bag. Put in and seal. After leaving it for 5 hours, it is thoroughly washed with water to obtain a dyed artificial marble.

Test Example 1 The sample dyed in the example was used as a sample, and an appearance inspection after dyeing and after immersing a part of the dyed part in water for 24 hours was performed. The results are shown in Table 1. In all of the stones dyed with the paste-like coloring material of the present invention, the inside of the stone is the same as before dyeing and the stone itself is well dyed. There was no difference in the concentration between the soaked part and the non-soaked part and no dye transfer, indicating good water resistance.

[0019]

[Table 1]

[0020]

As described above, the present invention has the following effects and is useful. The paste-like coloring material of the present invention can apply one or more colors to the surface without affecting the texture and texture originally possessed by the stone itself.
By preparing for each color such as the three primary colors of red and blue, it is possible to obtain the desired color or pattern immediately by mixing them.

Unlike the conventional dipping method for dyeing the entire stone, the stone dyeing method using the pasty coloring material of the present invention does not dye any unnecessary portion, and only the necessary portion of the stone surface is dyed. It is excellent because it can be dyed without mixing more than one color. Since the stone surface can be dyed from the inside, even if the stone surface is re-polished, the undyed part is not exposed. It is also possible to create a variety of color environments by giving stones one-point color or constructing patterns with different color tones.

Claims (2)

[Claims] 1. A pasty colorant comprising a water-soluble organic solvent, a thickener and / or a resin and a dye. 2. A method for dyeing natural stone and artificial stone, which comprises contacting a stone material with a paste-like coloring material comprising a water-soluble organic solvent, a thickener and / or a resin and a dye.