JPH0524017A - Inorganic panel and manufacture thereof - Google Patents

Abstract

PURPOSE:To simply and easily manufacture a cement-based inorganic panel having arbitrarily developed surface pattern and surface shape without using a pattern mold. CONSTITUTION:Water absorbable polymer 2 is sprayed according to the predtermined pattern to the surface of a form 1. After water 3 is applied onto the polymer so as to swell the polymer, emulsion resin 4 is applied on the swollen polymer in order to be turned into film. Next, cement slurry 7 is poured in the form the cured and demolded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing an inorganic plate. More specifically, the present invention relates to a method for producing an inorganic plate, which can be simply and easily produced as a cement-based inorganic plate having a surface pattern or surface shape of an arbitrary pattern, which is useful as an exterior material, a ceiling material, or the like. is there.

[0002]

2. Description of the Related Art Conventionally, cement-based inorganic plates have been used as building materials such as exterior materials for houses and ceiling materials. About this cement-based inorganic board, heat insulation,
Various types of products with excellent performance such as sound insulation have been developed so far, and the appearance has been upgraded, and those with various surface patterns and surface shapes with good designability have been developed. It is provided.

Such an inorganic plate is generally manufactured by a casting method including the following procedure using a pattern mold as shown in FIG. 2, for example. (A) First, a pattern mold (a) for forming a desired surface pattern or surface shape is placed on the bottom surface of the mold frame (a). (B) Then, a cement slurry (c) in which an aggregate such as silica sand or an additive is mixed into a cement component such as ordinary Portland cement is injected.

(C) After curing and curing, the form (a)
Then, the pattern type (a) is demolded to obtain an inorganic plate (d).

[0005]

However, in the case of the conventional method for manufacturing a cement-based inorganic board as illustrated in FIG. 2, since the pattern type (a) is used, the pattern type (a) is used. There is a problem that it is necessary to match the sizes of the molds (a), the work is troublesome, and it is not possible to flexibly deal with the production of inorganic plates of various sizes, and the molded inorganic plates (d) There is also a drawback that edge treatment is required.

[0006] Therefore, it has been desired to realize a new method capable of easily and easily producing an inorganic plate having an arbitrary surface pattern or surface shape. This invention has been made in view of the circumstances as described above, eliminates the drawbacks of the conventional method for producing an inorganic plate, and easily and easily a cement-based inorganic plate having a surface pattern or surface shape of an arbitrary pattern. It is an object of the present invention to provide a new method for producing an inorganic plate that can be produced.

[0007]

In order to solve the above-mentioned problems, the present invention is to spray a water-absorbent polymer on a surface of a mold in a predetermined pattern, apply water to swell, and then apply an emulsion resin. The present invention provides a method for producing an inorganic plate, which is characterized by forming the film into a film, and then injecting a cement slurry for curing and demolding.

For example, as shown in the manufacturing process of FIG. 1, in the method for manufacturing an inorganic plate of the present invention, <a> First, the mold (1) is set, and the water-absorbing polymer ( 2) is sprayed in a predetermined pattern. In this case, the kind of the water-absorbent polymer (2) is not particularly limited, and may be any of starch-based, cellulose-based, polyvinyl alcohol-based, acrylic-based and the like. Further, the shape may be any one of granular shape and irregular shape. For spraying the water-absorbent polymer (2), for example, a computer-controlled spreader may be used,
A pattern corresponding to a desired surface pattern or surface shape is formed.

<B> Next, water (3) is sprinkled, and the water-absorbent polymer (2) is swollen so as to have a predetermined size and shape. <C> After that, for example, an emulsion resin (4) such as an acrylic resin is applied to swell the water-absorbent polymer (5).
Film on. <D> On this resin film (6), a cement slurry (7) in which a cement component such as ordinary Portland cement is mixed with an aggregate such as silica sand and an additive is injected, and predetermined curing is performed.

<E> The mold (1) is demolded after the cement slurry (7) is hardened. In this way, the cement-based inorganic plate (8) having a desired surface pattern or surface shape is manufactured.

[0011]

In the present invention, by using the water-absorbent polymer (2), a surface pattern or surface shape of an arbitrary pattern can be obtained by appropriately controlling the spraying state of the water-absorbent polymer (2). The pattern pattern in the conventional casting method becomes unnecessary. In addition, the size of the mold (1) can be flexibly accommodated, the end surface treatment of the inorganic plate (8) can be easily and easily performed, and the surface of the inorganic plate (8) is covered with the resin film (6). Therefore, deterioration of the surface due to air, moisture, etc. is prevented, and durability is also improved.

[0012]

[Examples] The following will describe the method for producing an inorganic plate of the present invention in more detail with reference to Examples. Water-absorbing polymer in the mold (Aronzap RS: manufactured by Toagosei Chemical Industry Co., Ltd.)
Was sprayed in a concavo-convex pattern with a computer-controlled sprayer, and then water was applied with a spray gun to swell the water-absorbent polymer.

Next, the acrylic emulsion resin (GF
-11: Kanebo NSC) was applied onto the swollen water-absorbent polymer, and cement / silica sand =
1/3 cement slurry was injected. After this, 60
The mold was demolded by heat-curing for 10 hours at ℃. The surface of the obtained shaped body had irregularities of about 7 to 15 m / m and formed a rock-faced deep pattern with a natural feeling. Further, the end surface treatment after molding was easy.

Of course, the present invention is not limited to the above examples. It goes without saying that various aspects are possible in terms of details such as the types of water-absorbent polymers and emulsion resins, the components and blending ratios of cement slurries, and the surface pattern and surface shape of inorganic plates.

[0015]

As described above in detail, according to the present invention, the cement-based inorganic board can be cast by molding while easily and easily forming a surface pattern or surface shape of an arbitrary pattern. Can be flexibly adapted to the formwork size,
The end surface treatment is also simple and easy. It also becomes possible to prevent surface deterioration.

[Brief description of drawings]

FIG. 1 is a process sectional view illustrating a process of a method for manufacturing an inorganic plate according to the present invention.

FIG. 2 is a process sectional view showing a conventional method for manufacturing an inorganic plate.

[Explanation of symbols]

 1 Formwork 2 Water-absorbent polymer 3 Water 4 Emulsion resin 5 Swelled water-absorbent polymer 6 Resin film 7 Cement slurry 8 Cement-based inorganic board

Claims (1)

Claim: What is claimed is: 1. A water-absorbent polymer is sprayed on a surface of a mold in a predetermined pattern, water is applied to swell the emulsion resin, and then an emulsion resin is applied to form a film, followed by cement slurry. A method for producing an inorganic plate, which comprises injecting and curing and demolding.