JPH06143304A - Masking material manufacturing method and building board coating method - Google Patents

Abstract

(57) [Summary] [Object] An object of the present invention is to easily perform multicolor coating on a surface to be coated having an uneven pattern. [Structure] A liquid raw material 6 is poured into a predetermined portion of a mold 1 having a bottom surface 2 having an uneven shape 3 corresponding to the shape of a surface to be coated, or the liquid raw material 6 is poured without the interference material 5, and the liquid raw material 6 is solidified. When the interference material 5 is not installed after the release, the masking material 8A, 8B, 8C having the openings 9A, 9B, 9C of the predetermined shape is cut at the predetermined portion by cutting the predetermined portion of the solidified material of the raw material. To manufacture. When such a masking material 8A, 8B, 8C is applied to the surface of the building board 12 to be coated and coated, only the portions of the openings 9A, 9B, 9C are selectively coated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a masking material used for partially coating a building board such as an exterior material of a building, and a method of coating a building board using the masking material. Is.

[0002]

BACKGROUND ART In recent years, the number of bricks and tiles attached to outer walls of buildings such as houses has been increasing in recent years. However, attaching bricks and tiles requires a lot of labor and time, It has become a big problem due to the shortage of construction workers. Therefore, recently, an exterior material having an appearance such as bricks and tiles stretched has been demanded. Such an exterior material is formed by kneading a self-hardening inorganic material such as cement, gypsum, or magnesium carbonate with water or the like, and pressing the surface with a roll press, a flat plate press or the like when the molded product is uncured. It is manufactured by forming a concavo-convex pattern like bricks or tiles, and coating after curing. It is desirable to apply multicolor coating to the above-mentioned exterior material according to the needs of recent consumers.

[0003]

2. Description of the Related Art Conventionally, in order to apply a multicolor coating to the surface of an exterior material having such a concavo-convex pattern, after applying a base coating of a desired color tone to the entire surface with a flow coater or the like,
A method of applying a different color tone to a predetermined portion with a sponge roll or the like is adopted.

[0004]

However, in the above-mentioned conventional method, since another coating is partially applied to the surface to which the base coating is applied, there is a possibility that the base coating can be seen through in the part to which the other coating is applied. Problems such as limited choices of color tones, difficulty in accurately applying paint to specific areas with sponge rolls, and sponge rolls not being able to handle patterns with large unevenness There is a point.

[0005]

[Means for Solving the Problems] As a means for solving the above conventional problems, the present invention provides a mold (1) having a bottom surface (2) having a shape corresponding to the shape of a surface (13) to be coated. Location (3
A, 3B) the interference material (5) is installed and then the liquid raw material (6) is poured, and after the liquid raw material (6) is solidified, the masking material (8A, 8B, 8C) is released. Liquid material is placed in the mold (1) that has a bottom surface (2) that corresponds to the shape of the painted surface (13).
(6) is poured, the liquid raw material (6) is solidified and released from the mold, and then the openings (9A, 9B, 9C) are formed by cutting out predetermined portions of the solidified molded product, thereby producing a masking material. And the above masking material on the coated surface (1) of the building board (12).
It is intended to provide a method for coating a building board which is adhered to 3) and coated.

[0006]

[Function] Liquid raw material is placed in the mold (1) where the interference material (5) is installed.
When the (6) is poured, the liquid raw material (6) is filled in the mold (1) other than the predetermined places (3A, 3B) where the interference material (5) is installed. After the liquid raw material (6) is solidified and released, a masking material (8A, 8B, 8C) is obtained, and the masking material (8A, 8B, 8C)
Has a shape corresponding to the shape of the target surface to be coated (13), and therefore the lower surface of the masking material (8A, 8B, 8C) is in close contact with the surface to be coated (13). However, the masking material
In (8A, 8B, 8C), the opening (9
A, 9B, 9C) are formed. In addition, the liquid material (6) is poured into the mold (1) without installing the interference material (5) to solidify and release the mold, and the opening (29) is formed by cutting a predetermined part of the solidified molded product. And use it as a masking material (28). Therefore, the surface to be coated (13) with the masking material (8A, 8B, 8C, 18, 28)
By coating and coating, only the portion of the surface to be coated (13) corresponding to the openings (9A, 9B, 9C, 19, 29) will be coated.

[0007]

EXAMPLES The present invention will be described with reference to one example shown in FIGS. 1 to 8. (1) is a mold, and the bottom surface (2) of the mold (1) is
A bottom plate (4) having an uneven shape (3) corresponding to the uneven pattern of the surface to be coated is installed in the. The formwork
The (1) and the bottom plate (4) are made of wood, plastic, metal, cement, gypsum, etc., and their surfaces are coated with a mold release agent or subjected to mold release treatment by Teflon processing, silicon processing, etc.

Concavo-convex shape of the bottom plate (4) surface of the mold (1)
Oil clay, as shown in Fig. 2, is placed at the designated locations (3A, 3B) in (3).
An interfering material (5) made of a material having releasability such as a paraffin-sand mixture, polyvinyl fluoride, silicon rubber or the like, or wood, plastic, metal or the like having its surface subjected to a release treatment is installed. The bottom surface of the interference material (5) is located at the predetermined position (3A, 3A).
It has a size and shape corresponding to B), but has a tapered shape whose diameter increases as it goes upward.

After placing the interference material (5) on the mold (1), a liquid raw material (6) is poured as shown in FIG. The liquid raw material (6) is, for example, a liquid prepolymer such as a urethane prepolymer, an epoxy resin prepolymer, an acrylic prepolymer, an unsaturated polyester, an acrylic oligomer or an acrylic monomer, an oligomer or a monomer, which is usually mixed with a curing agent. ing. Further, the liquid raw material (6) may be a melt of a thermoplastic such as ethylene-vinyl acetate copolymer, polyethylene, polypropylene or the like. Further, the liquid raw material (6) may be a slurry in which a self-hardening inorganic material such as cement, gypsum and magnesium carbonate is mixed with water or the like. In the liquid raw material (6), glass fiber, carbon fiber, ceramic fiber in the form of net, cloth, non-woven fabric, etc. as a reinforcing material (7),
Inorganic or organic fibers such as polyamide fibers, polyester fibers and acrylic fibers may be mixed. Moreover, the building board itself to be painted may be used as the bottom board (4).

When the liquid raw material (6) is solidified, the interference material
(5) is removed and the solidified molded product is released from the mold (1) to open the openings (9A, 9B, 9) as shown in FIGS. 4, 5 and 6.
C) is formed in a predetermined place, and the lower surface (10A, 10B, 10C) has an uneven shape (11A, 11B, 11C) corresponding to the uneven pattern of the surface to be coated (13).
A masking material (8A, 8B, 8C) on which is formed is obtained.

As shown in FIG. 7, the masking materials (8A, 8B, 8C) are successively applied to the surface to be coated (13) of a building board (12) such as an exterior material of a building, and then a spray gun. Apply coating (16) with S or a flow coater. The building board (12)
The surface to be painted (13) of has an uneven pattern (14),
Since the concavo-convex shape (11A, 11B, 11C) corresponding to the concavo-convex pattern (14) is formed on the lower surface (10A, 10B, 10C) of the masking material (8A, 8B, 8C), the masking material ( 8A, 8B, 8C) bottom surface (10
A, 10B, 10C) adheres to the coated surface (13) of the building board (12).

In this way, the concavo-convex pattern as shown in FIG.
Three-color coating (16A, 16B, 16
C) Building board (12) is obtained, but masking material (8A)
If applied, paint on the location corresponding to the opening (9A)
When (16A) is applied and masking material (8B) is applied, the coating (16B) is applied to the part corresponding to the opening (9B), and when masking material (8C) is applied the opening Painting (16C) is applied to the part corresponding to part (9C). At the time of the above-mentioned coating, the openings (9A, 9B, 9C) of the masking materials (8A, 8B, 8C) each have a tapered shape that opens upward, so that the coating property of the coating becomes good.

In this embodiment, three kinds of masking materials (8A, 8B, 8
Three-color coating was performed using (C), but if multiple coatings are possible, the entire surface of the coating surface (13) of the building board (12) (1
6C) may be applied, and then the coating (16A, 16B) may be overlaid using the masking material (8A, 8B).

9 to 11 show another embodiment. In this embodiment, the paint reservoir molding portion (15A) is formed on the peripheral surface of the interference material (15). The building board (12) itself which is painted as the bottom board is used. Such interference material
Masking material (18) manufactured by installing (15) on the predetermined locations (3A, 3B) of the uneven shape (3) on the surface of the building board (12) installed on the bottom surface (2) of the formwork (1) A paint reservoir (17) is formed on the peripheral wall of the opening (19).

Therefore, as shown in FIG. 11, the building board (12)
Coating with the masking material (18) on the surface (13) to be coated
When applying (16), the coating material P is applied to the opening (1) of the masking material (18).
Although it adheres to the peripheral wall of 9) and flows down, the paint P accumulates (1
7), resulting in the surrounding area (2
It is possible to prevent the thick portion of the coating from being formed in 0).

12 to 14 show still another embodiment. In this embodiment, as shown in FIG.
The building board (12), which is painted as a bottom plate, is installed on the bottom surface (2) of (1), and the liquid raw material (6) is installed without interfering materials.
Pour in to solidify. When the liquid raw material (6) is solidified, as shown in FIG. 13, a cutting jig (22) equipped with a cutting blade (21) cuts a predetermined portion of the solidified material of the raw material (6) and hollows it. In this way, as shown in FIG. 14, a masking material (28) having an opening (29) at a predetermined position is manufactured.

[0017]

As described above, according to the present invention, it is possible to easily apply multicolor coating to the surface to be coated having an uneven pattern.

[Brief description of drawings]

 1 to 8 show an embodiment of the present invention.

FIG. 1 Cross section of formwork

[Fig. 2] Cross-sectional view of formwork with interference material installed

FIG. 3 is a cross-sectional view of the mold with the liquid raw material being poured.

FIG. 4 is a plan view of a masking material.

FIG. 5 is a plan view of another masking material.

FIG. 6 is a plan view of still another masking material.

[Figure 7] Cross-sectional view of the exterior material in the painted state

FIG. 8 is a perspective view of an exterior material after coating. FIGS. 9 to 11 show another embodiment.

FIG. 9 is a sectional view of the mold in a state where the liquid raw material is poured.

[Fig. 10] Cross-sectional view of exterior material in a painted state

FIG. 11 is a partial cross-sectional view of an exterior material in a coated state around a coating location. FIGS. 12 to 14 show still another embodiment.

FIG. 12 is a sectional view of the mold in a state where the liquid raw material is poured.

FIG. 13 is a cross-sectional view of the mold in a cut state of the solidified raw material.

FIG. 14 is a sectional view of a masking material.

[Explanation of symbols]

 1 Formwork 2 Bottom surface 3 Uneven shape 3A, 3B Predetermined places 4 Bottom plate 5,15 Interfering material 6 Liquid raw material 8A, 8B, 8C, 18, 28 Masking material 9,19, 29 Opening 12 Building board 13 Painted surface 14 Uneven surface Pattern 16 Painting 22 Cutting jig

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Claims (3)

[Claims] 1. A liquid material is poured into a mold having a bottom surface having a shape corresponding to the shape of the surface to be coated, a liquid material is poured into the frame, and the liquid material is solidified and then released. For producing masking material 2. A liquid raw material is poured into a mold having a bottom having a shape corresponding to the shape of the surface to be coated, the liquid raw material is solidified and then released, and then predetermined portions of the solidified molded product are cut off. A method of manufacturing a masking material, characterized by forming an opening 3. A method for coating a building board, which comprises applying the masking material according to claim 1 or 2 to a surface of a building board to be coated for coating.