JPH0681436A - Surface coloring face method of concrete product - Google Patents

Abstract

PURPOSE:To have easy working process with a short working period, to reduce a working cost and to make it possible to color and face a concrete product in a state of having natural sense. CONSTITUTION:A coloring material adhesive sheet 10 distributing a large number of coloring granular substances on one side of a base material through an adhesion layer decreasing adhesion by water absorption is used, a surface distributing the coloring granular substances of the coloring material adhesive sheet as a contact surface against the surface of a concrete product is installed to the bottom of a form 14, and a concrete material 2 is placed. The surface of the concrete product is colored and faced by decreasing adhesion of the adhesive layer by water in the concrete material 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of coloring a concrete product on a concrete surface.

[0002]

2. Description of the Related Art Conventionally, the following methods have been used to apply colored makeup to the surface of concrete products. That is, first, a mold 1 as shown in FIG. 8 is prepared, and a concrete material is poured into the mold 1. After that, the concrete material is cured and hardened to form concrete, which is released from the mold 1. Then, as shown in FIG. 9, a paint prepared in advance is sprayed onto the surface of the concrete 3 to apply colored makeup. Further, in the case of a concrete product having an uneven pattern such as a desired design formed on the surface, first, as shown in FIG. 10, a mold 1 is prepared, and the desired uneven pattern is formed on the bottom surface of the mold 1. The concrete 4 with the designed surface is formed. Then, the concrete material is poured into the mold 1. After that, the concrete material is cured and hardened to form concrete, which is released from the mold 1. Then, Fig. 11
As shown in FIG. 3, a paint prepared in advance is sprayed on the surface of the concrete 5 on which the desired uneven pattern is transferred, and the surface of the uneven pattern forming concrete 5 is colored and colored. By these methods, a colored makeup is applied to the concrete product.

On the other hand, in addition to the method of coloring and applying with the above-mentioned paint, the following methods can be given. That is, first,
A formwork 1 as shown in FIG. 8 is prepared. On the other hand, a pigment is mixed and kneaded into a concrete material to prepare a pigment-containing concrete material. Then, as shown in FIG. 12, the pigment-containing concrete material 6 is poured into the mold 1. After that, the pigment-containing concrete material 6 is cured and hardened to be concrete, and the concrete material 7 (see FIG. 13) having a colored makeup is produced by releasing the concrete material 6 from the mold 1. To be In addition to the above-mentioned method, as shown in FIG. 14, the pigment-containing concrete material 6 is poured only into the bottom portion (the portion which becomes the surface of the concrete product) in the mold 1, and then the remaining portion is kneaded with the pigment. Not pour the normal concrete material 2. After that, the pigment-containing concrete material 6 and the ordinary concrete material 2 are cured and hardened to form concrete, which is released from the mold 1 to produce a concrete product whose surface is colored. Further, in the case of a concrete product having an uneven pattern of a desired design or the like formed on the surface thereof, first, a mold 1 as shown in FIG. Concrete 4 with a surface design on which an uneven pattern is formed is formed (see FIG. 10). Then, as described above, the pigment-containing concrete material 6 in which the pigment is kneaded is poured into the entire mold 1 (see FIG. 15), or the bottom surface of the mold 1 (the portion which becomes the surface of the concrete product).
Pigment-containing concrete material in which pigment is kneaded only 6
Then, the normal concrete material 2 in which the pigment is not kneaded is poured into the remaining portion (see FIG. 16). After that, the pigment-containing concrete material 6 and the ordinary concrete material 2 are cured and hardened to form concrete, which is released from the mold 1. In this way, concrete products 8 and 9 whose surfaces are colored and decorated as shown in FIGS. 17 and 18 are obtained.

[0004]

However, the method of spraying and coating a paint on the above-mentioned surface has the following problems. First, since an organic paint is usually used for coloring, the durability of the colored portion is poor. Further, the manufacturing process is complicated because a paint spraying process must be performed in addition to the casting process by curing and hardening the concrete material. Moreover, the colored paint cannot be sprayed until the concrete material is cured and hardened, and the manufacturing period of the concrete product becomes long. Further, since the colored makeup is sprayed, uniform coloring makeup is possible, but it is very difficult to apply colored makeup having a natural feeling such as blurring and unevenness.
The method using the pigment-containing concrete material 6 has a problem that the cost is high when the pigment-containing concrete material 6 is used for the entire mold 1. Further, when it is used only for the surface part of the concrete product, two kinds of mixing devices for producing the concrete material, that is, the concrete material 6 containing the pigment and the normal concrete material 2 without the pigment are required, which makes the working process very complicated. . In addition, it is very difficult to apply a natural colored makeup as in the case of the above-mentioned paint spray coloring method.

The present invention has been made in view of the above circumstances, and the surface coloring makeup of a concrete product which has an easy working process, a short period of time, a low cost, and a natural coloring can be obtained. The purpose is to provide the law.

[0006]

In order to achieve the above-mentioned object, the present invention provides a large number of colored granules on one surface of a base material through an adhesive layer whose adhesive strength is reduced by moisture in concrete material. A step of preparing a distributed colorant-attached sheet, a step of placing a concrete material with the surface of the colorant-attached sheet on which the colored particles are distributed being a contact surface for the surface of a concrete product, and And a step of applying colored makeup by reducing the adhesive force of the adhesive layer due to water in the concrete material and transferring and adhering the colored particles to the surface of the concrete product.

[0007]

That is, the present invention uses a coloring material-adhered sheet in which a large number of colored particles are distributed on one surface of a base material through an adhesive layer whose adhesive strength is reduced by moisture in concrete material. The surface of the coloring material-adhered sheet where the colored particles are distributed is used as a contact surface for the surface of the concrete product, and the concrete material is cast, and the adhesive force of the adhesive layer is reduced by the water content in the concrete material. A colored makeup is applied to the surface of the concrete product by transferring and adhering the colored granules to the surface of the concrete product. Therefore, delicate coloring with a natural feeling such as blurring and natural color unevenness is possible, and it can be easily and quickly produced by a work process of filling and placing concrete material. Further, since the colored particles are transferred and adhered only to the surface of the generated concrete, the cost can be reduced.

Next, the present invention will be described in detail.

The present invention is to apply a colored makeup to the surface of a concrete product by using a coloring material-adhering sheet in which a large number of colored particles are distributed on one surface of a base material via an adhesive layer.

The material of the base material is not particularly limited as long as it has flexibility, and a rubber elastic body,
Examples include plastic, paper and cloth. Vinyl chloride resin is particularly preferable. The thickness of the base material is 5.
It is preferably set to 0 mm or less.

The pressure-sensitive adhesive layer is formed by applying an adhesive or pressure-sensitive adhesive to the surface of the base material. Further, as the above-mentioned adhesive or pressure-sensitive adhesive, one whose adhesive strength is reduced or disappeared due to water or alkaline components in the concrete material is used. Adhesives whose adhesive strength is reduced or disappears when they meet moisture in concrete materials include methylcellulose adhesive, polyvinyl alcohol adhesive,
Examples include water glass. In addition, examples of the adhesive that reduces or disappears by contact with the alkaline component in the concrete material include a two-component acrylic adhesive. The thickness of the coating film formed by applying this adhesive or pressure-sensitive adhesive is in the range of 0.1 to 5.0 mm.

As the colored particles distributed through the adhesive layer, colored crushed stone particles of natural stone, ceramic particles, glass particles and the like are used. As the colored particles, for example, particles having a particle size in the range of 0.01 μm to 8.0 mm are preferably used. Then, as a method for distributing a large number of the colored particles in the adhesive layer, a method of adhering a large number of colored particles to the adhesive layer by pressure spraying, a method of spraying a large number of colored particles in the adhesive layer, pressing, etc. Depending on the method, a method of performing embedded anchor processing or a combination of both methods is used. The number of colors is set appropriately.

According to the present invention, the above-mentioned coloring material-adhered sheet is used to apply colored makeup to the surface of a concrete product as follows. That is, the surface of the coloring material-adhered sheet where the colored particles are distributed is used as a contact surface for the surface of the concrete product, the concrete material is cast, the material is cured, and then the coloring material-adhered sheet is generated from the surface of the concrete product. Peel off. Through this series of steps, the colored particles on the coloring material-attached sheet are transferred and adhered to the surface of the concrete product. In this case, for fixing the colored granules to the base material, those whose adhesive strength is reduced by water and alkali components in the concrete material are used. Since the adhesive force of the adhesive layer fixed to the base material is weakened or disappears, it becomes possible to easily separate only the base material from the surface of the concrete product. In this way, the colored granules are transferred and adhered to the surface of the concrete product, and coloring with a natural feeling is achieved.

The concrete product with the surface coloring and makeup thus obtained is generally used as a concrete building material called precast concrete (PC).

[0015]

INDUSTRIAL APPLICABILITY As described above, according to the present invention, a large number of colored particles are distributed on one surface of a base material through an adhesive layer whose adhesive strength is reduced by moisture in concrete material. Using a sheet, a concrete material is placed with the surface where the colored particles of the coloring material-attached sheet are distributed as the contact surface for the surface of the concrete product, and after curing and curing the concrete material, from the surface of the concrete product. This is a method in which the coloring material-attached sheet is peeled off, and the adhesive strength of the adhesive layer is reduced by water in the concrete material or the like to transfer and adhere the colored particles to the surface of the produced concrete product. As described above, during curing and hardening of the concrete material, the adhesive force of the adhesive layer is weakened by the water content in the concrete material, etc., and the colored granular material held in the adhesive layer is solidified on the concrete material surface. Transition glued. In this way, a colored makeup is applied to the surface of the produced concrete product. Therefore,
It enables delicate coloring with a natural feeling such as color blurring and color unevenness, and the work process can be done in a short period of time. Further, since the colored particles are transferred and adhered only to the surface of the generated concrete, the cost can be reduced. Moreover, the colorant-attached sheet that has been used once can be reused by newly forming an adhesive layer and attaching the colored particles to the adhesive layer, thus achieving cost reduction similar to the above. Thus, the colored cosmetic method of the present invention is
It is optimally applied to the mass production of concrete building materials used in the so-called PC construction method in factories.

Next, the present invention will be described based on embodiments.

[0017]

Embodiment 1 FIG. 1 shows an example of a coloring material-adhering sheet of the present invention. The colorant-attached sheet 10 has a thickness of 0.
A 5.0 mm thick adhesive layer 12 formed by applying a water-soluble methyl cellulose adhesive is formed on one surface of a 1 mm vinyl chloride resin sheet 11. On the surface of the adhesive layer 12, many colored crushed stone particles 13 of natural stone
Are bonded by pressure spraying. Then, as shown in FIG. 2, a mold 14 having a flat bottom is prepared, and the concrete material to be placed and the surface on which the colored crushed stone particles 13 of the coloring material-attached sheet 10 are distributed are prepared on the bottom surface. The colorant-attached sheet 10 is laid so that it comes into contact with. Then, as shown in FIG. 3, the concrete material 2 is cast in the mold 14, cured and hardened. Next, as shown in FIG.
Is taken out and peeled off from the coloring material-attached sheet 10. At the time of this peeling, the adhesive layer 1 made of water-soluble methyl cellulose
Since 2 is dissolved in water in the concrete material 2 and disappeared, only the vinyl chloride resin sheet 11 of the coloring material-attached sheet 10 can be easily peeled off. The concrete board product 15 thus obtained had a color expression with a natural texture in which a large number of colored crushed stone particles 13 of natural stone were distributed on the surface thereof.

[0018]

Example 2 A concrete product having a corrugated surface is formed on the surface of the concrete product. FIG. 5 shows an example of the coloring material-attached sheet formed in the uneven shape of the present invention. The structure of the coloring material-attached sheet 16 is the same as that of the first embodiment. Then, as shown in FIG.
The base 17 is prepared, and the pedestal 17 is arranged so as to hold the shape of the coloring material-attached sheet 16 formed in the uneven shape on the bottom surface. Then, in the same manner as in Example 1, as shown in FIG. 7, the surface of the concrete plate product 18 was subjected to colored makeup by the transfer adhesion of the colored crushed stone particles 13. In the concrete board product 18 thus obtained, a large number of colored crushed stone particles 13 of natural stone were distributed on the uneven surface, and a color expression with a natural texture was made.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an example of a colorant-attached sheet used in the present invention.

FIG. 2 is a cross-sectional view showing a mold on which the coloring material-attached sheet is laid.

FIG. 3 is an explanatory view showing a state where concrete material is filled in the formwork.

FIG. 4 is an explanatory view showing a state in which a concrete product is taken out from a mold.

FIG. 5 is a cross-sectional view showing another embodiment of the coloring material-attached sheet used in the present invention.

FIG. 6 is a cross-sectional view showing a mold on which the coloring material-attached sheet is laid.

FIG. 7 is a cross-sectional view showing a concrete product obtained by the above manufacturing method.

FIG. 8 is an explanatory diagram showing a conventional manufacturing process of a concrete product.

FIG. 9 is an explanatory diagram showing a manufacturing process of a conventional concrete product.

FIG. 10 is an explanatory view showing a manufacturing process of a conventional concrete product.

FIG. 11 is an explanatory view showing a manufacturing process of a conventional concrete product.

FIG. 12 is an explanatory diagram showing a manufacturing process of a conventional concrete product.

FIG. 13 is an explanatory view showing a manufacturing process of a conventional concrete product.

FIG. 14 is an explanatory view showing a manufacturing process of a conventional concrete product.

FIG. 15 is an explanatory diagram showing a manufacturing process of a conventional concrete product.

FIG. 16 is an explanatory view showing a manufacturing process of a conventional concrete product.

FIG. 17 is an explanatory diagram showing a manufacturing process of a conventional concrete product.

FIG. 18 is an explanatory diagram showing a manufacturing process of a conventional concrete product.

[Explanation of symbols]

 10, 16 Coloring material adhered sheet 11 Vinyl chloride resin sheet 12 Adhesive layer 13 Colored crushed stone particles 14 Formwork 15, 18 Concrete board products

Claims (1)

[Claims] 1. A step of preparing a coloring material-adhering sheet in which a large number of colored particles are distributed on one surface of a base material through an adhesive layer whose adhesive strength is reduced by moisture in concrete material, and the coloring. A step of placing a concrete material with the surface of the material-attached sheet on which the colored particles are distributed as the contact surface for the surface of the concrete product, and reducing the adhesive force of the adhesive layer by the water content in the concrete material. And a step of applying colored makeup by transferring and adhering the above-mentioned colored granules to the surface of the concrete product, and a method for coloring the surface of a concrete product.