JPH0866912A - Surface patterning method of fiber reinforced cement slate material - Google Patents

Abstract

PURPOSE: To realize a highly efficient production by a method wherein the surface, in which sands are imbedded, of an uncured fiber reinforced cement slate material is cured and then painted with arbitrary color which is blown off with air before the paint dries up to partially or fully expose colored sands, and thereafter the paint is cured. CONSTITUTION: Colored sands 4 are uniformly sprinkles on the surface of an uncured fiber reinforced cement slate material 1 obtained by wet manufacturing process, the sprinkled sands are pressed from above with a plate pressing device 5 in order to bury and fix the sands 4 to the surface of the uncured fiber reinforced cement. After that, the surface is once cured. The surface of the cured fiber reinforced cement slate is coated with paint 7 in arbitrary color. After painting, before the paint dries hard, air is jetted to the surface of the painting with an air-blower 8 so as to blow off the paint 7 and partially or fully expose colored sands 4. Thus, the surface of the sand has no or slight painting film and the cement ground portion has a good external appearance with adhered paint. After that, the paints is cured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface patterning method for fiber-reinforced cement board material.

[0002]

2. Description of the Related Art Fiber reinforced cement boards are very widely used as building board materials for outer walls. These fiber-reinforced cement boards have a smooth surface, a ground color of gray white to gray black, and poor designability, so that various colors or uneven patterns are applied to the surface. By the way, a lysine paint is known as a paint finish for the outer wall composed of these fiber reinforced cement boards. This ricin paint is generally sprayed with fine sand mixed in the paint.
Combined with the uneven pattern design on the outer wall surface, it is generally preferred as a matte high-class design property in which the finely blended sand is raised on the surface.

[0003]

[Problems of the prior art] However, it is difficult to produce this lysine paint in a factory-productive manner due to the nature of the paint such as the blended sand particles and the nature of the finished appearance. There is a problem that I can not get it. Therefore, at present, such fiber-reinforced cement boards that have been subjected to such a lysine paint finish-like surface makeup have not been implemented in factory production.

[0004]

DISCLOSURE OF THE INVENTION In view of the above problems, the present invention provides a surface pattern of a fiber reinforced cement board material capable of producing a lysine-like high-quality surface makeup in a factory production highly efficiently rather than on-site painting. It was made for the purpose of obtaining the attachment method.

[0005]

That is, the surface patterning method of the fiber-reinforced cement board material of the present invention is to uniformly disperse the colored sand particles on the surface of the uncured fiber-reinforced cement board material, and press uniformly from the spread sand particles. Do, embed the sand particles in the surface of the uncured fiber reinforced cement plate material, then cure and harden, and after the curing and curing, paint the surface with an arbitrary color and blow the paint by blowing air on the coated surface before drying and curing. It is characterized in that only a part or all of the embedded colored sand grains are exposed, and then the paint is cured.

A second aspect of the present invention is to uniformly disperse colored sand particles on the surface of the uncured fiber-reinforced cement board material, and press uniformly from above the dispersed sand particles to embed the sand particles on the surface of the uncured fiber-reinforced cement board material, and thereafter Part of the colored sand particles embedded by spraying air onto the surface of the painted surface before the surface is cured and cured by pressurizing the surface with an uneven pattern, and then curing and curing the surface in any color after drying and curing. It is characterized by exposing the whole and then curing the paint.

A third aspect of the present invention is to uniformly disperse colored sand particles on the surface of the uncured fiber-reinforced cement board, and press uniformly on the sprayed sand particles to embed the sand particles on the surface of the uncured fiber-reinforced cement board, and then The uncured fiber-reinforced cement board is cured and cured, and after the curing and curing, an uneven pattern is grinded on the surface, then the surface of the processed board is painted in an arbitrary color, and air is sprayed before drying to cure the paint. A part or all of the colored sand grains embedded by being blown off are exposed, and then the paint is cured.

[0008]

[Function] The lysine paint mixes fine sand particles in the paint and sprays the fine sand particles on the surface of the coating film to make the unevenness of the sand particles stand out to give a matte surface. In order to obtain this appearance, in the present invention, the colored sand particles are uniformly dispersed on the surface of the uncured fiber-reinforced cement plate material obtained mainly by the wet manufacturing method such as the extrusion molding method and the papermaking method, and the pressed sand particles are uniformly pressed. , Sand grains are embedded and fixed on the surface of the uncured fiber-reinforced cement plate material. As a result, the surface of the fiber-reinforced cement board which is the base is provided with an uneven surface made of sand grains which gives a ricin-like appearance. Then, this is once cured and cured.

The cured fiber reinforced cement board has a lysine-like base surface, but is not yet colored. Therefore, the surface of the cured fiber-reinforced cement board is painted in an arbitrary color and colored. After this coating, before the coating material has dried and hardened, air is blown onto the coated surface to blow off the coating material to expose a part or all of the embedded colored sand grains. By this step, the surface of the sand grains has no coating or is thin, and the cement base portion has a high-grade appearance with the coating adhered. Then, after that, the paint is cured.

In the case of the second invention, a makeup in which an uneven pattern and a lysine paint are combined is obtained. Colored sand particles are evenly dispersed on the surface of the uncured fiber-reinforced cement plate material, and the pressed sand particles are uniformly pressed. After the sand particles are embedded and fixed in the surface of the uncured fiber-reinforced cement board material, the surface is subjected to an uneven patterning press to give an uneven pattern. As a result, the surface of the uncured fiber-reinforced cement board is provided with a lysine-like base material and an asperity pattern by pressing to complete the asperity pattern of the lysine base. Then, this is once cured and cured.

Colored coating is applied to the cured fiber-reinforced cement board in the same process as in the above invention. By this method, a decorative cement board having a rugged surface on the entire surface and having an uneven pattern by pressing on the surface can be obtained.

In the method of the second aspect of the present invention, the surface of both the convex and concave portions of the concave-convex pattern formed by the press is uniformly applied with lysine-like surface makeup. When doing, press uniformly from the evenly spread sand grains, after embedding and fixing the sand grains on the surface of the uncured fiber-reinforced cement plate material, immediately cure curing, then the surface is ground into an arbitrary pattern to give an uneven pattern. Then, the surface of the concave pattern has a concave-convex pattern without sand grains, and thereafter, coloring is performed with a paint in the same manner as described above.

According to this method, the surface of the sand grains on the surface of the convex portion is thin with or without the coating material, the coating material adheres to the cement base portion, and the surface of the concave portion has a separate coating surface to which the coating material adheres. . In the above third invention,
The unevenness pattern formed by grinding on the surface of the hardened fiber-reinforced cement board is more like a tile joint pattern or a brick groove-like joint groove pattern, so that a more design effect can be obtained.

[0014]

Embodiments of the present invention will be described below. 1 to 5 are process diagrams for explaining the embodiment of the present invention.

[Example 1] A thickness of 20 mm was obtained by the Fourdrinier papermaking method.
A fiber-reinforced cement board 1 having a width of 450 mm and a length of 3,000 mm is formed and transferred on a pallet 2, and the uncured fiber-reinforced cement board 1 surface has an average particle diameter of knurled rolls 3 as shown in FIG. 500g / m ^{2 of} 1mm colored sand grains 4
It was sprayed evenly so that the ratio would be. Next, this uncured fiber-reinforced cement board 1 is transferred to a flat plate press 5 and pressed by a flat plate press 6 at 50 kg / cm ² to flatten the uncured fiber-reinforced cement board 1 and to disperse the sand particles 4. I embedded it.

Next, primary curing was carried out at room temperature for 6 hours, and after hardening once, a sealer was applied to the entire surface to prevent the precipitation of efuro, and final curing was carried out by autoclaving or the like. Next, as shown in FIG. 2, the surface is coated with the water-based emulsion paint 7. Immediately thereafter, the paint 7 remains on the cement base portion 1A by the air blower 8 on the surface as shown in an enlarged view in FIG. The spray pressure was adjusted so that the paint on the surface portion 4A of No. 4 was removed, and the paint was blown off by air blowing.

[Embodiment 2] An uncured fiber-reinforced cement board 1 in which sprinkling sand particles 4 are embedded in the surface in the same manner as in Embodiment 1
As shown in FIG. 4, two types of uneven patterns, a natural stone-like uneven pattern 9A and a brick-like joint groove pattern 9B, were applied to the surface by a flat plate press. After that, the sealer coating and the surface coating were performed in the same manner as in Example 1, dried and finally cured to obtain a product.

[Embodiment 3] An uncured fiber reinforced cement board 1 having the surface thereof filled with sand particles 4 in the same manner as in Embodiment 1
Then, this was once cured and cured, and after applying a sealer on the entire surface, final curing was performed. Next, as shown in Fig. 5, a router 10 was used to measure a width of 10 mm, a depth of 4 mm, a length of 50 mm, and a width of 15 on the surface.
Brickwork-like joint groove patterns 11 and 11 with equal intervals of 0 mm were ground. After that, the whole surface was again coated with a sealer, and the surface was then top-coated, and after each step of the sealer coating and the top-coat coating, air blow was performed and the paint was dried to obtain a product.

Fiber-reinforced cement board 1 obtained in Examples 1-3
As a result of observing the surface of the sample, in Example 1, the entire surface is a smooth decorative surface of lysine substrate, and in Example 2, the entire surface is uniform lysine substrate, and the surface is a natural stone-like uneven pattern and an uneven pattern of brick joint grooves. The decorative surface marked with, in Example 3, the brick joint groove portion is a smooth surface and the convex pattern surface is a ricin substrate surface, both of which have a very high-grade appearance configuration based on the ricin substrate surface. Became.

[0020]

As described above, according to the method of the present invention, the ricin-like decorative surface obtained by spray-coating the paint containing the sand particles can be mass-produced in a factory and the conventional construction is troublesome. It has the effect that a large amount of lysine-like makeup surface can be obtained at low cost. Further, when the method of the present invention is carried out, the conventionally used apparatus can be used as it is, so that the method is easy to carry out.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a sand particle spraying and pressing process of the present invention.

FIG. 2 is an explanatory view showing a coating and air blowing process of the present invention.

FIG. 3 is an enlarged cross-sectional view of the fiber-reinforced cement board after carrying out the air blowing of the present invention.

FIG. 4 is a sectional view of an essential part showing an example of a surface uneven press pattern of the present invention.

FIG. 5 is a cross-sectional view of an essential part showing an example of a surface uneven grinding pattern of the present invention.

[Explanation of symbols]

 1 ... Unhardened fiber reinforced cement board 2 ... Pallet 3 ... Knurl roll 4 ... Colored sand grain 5 ... Flat plate press machine 6 ... Flat plate press machine 7 ... Paint 8 ... Air blower 9A ... Natural stone-like uneven pattern 9B ... Brick-like Joint groove pattern 10… Router 11… Brickwork joint pattern

Claims (3)

[Claims] 1. Colored sand particles are uniformly sprayed on the surface of the uncured fiber-reinforced cement board material, and the sand particles are pressed uniformly on the surface of the sprayed sand particles to embed the sand particles on the surface of the uncured fiber-reinforced cement board material and then cured by curing. After the curing and curing, the surface is coated with an arbitrary color, and before it is dried and cured, air is blown onto the coated surface to blow away the paint to expose a part or all of the embedded colored sand particles, and then the paint is cured. A method for patterning a surface of a fiber-reinforced cement board, which is characterized by the following. 2. The uncured fiber-reinforced cement board material is uniformly sprayed with colored sand particles and pressed uniformly on the sprayed sand particles to embed the sand particles on the surface of the uncured fiber-reinforced cement board material, and then to make the surface uneven. A patterning press is applied to cure and cure, and after the cure and cure, the surface is painted in an arbitrary color, and before it is dried and cured, air is blown onto the coated surface to blow away the paint and expose part or all of the embedded colored sand grains. A method of patterning the surface of a fiber-reinforced cement board material, which comprises: 3. Colored sand particles are uniformly sprayed on the surface of the uncured fiber-reinforced cement board material, and the sand particles are pressed uniformly on the surface of the sprayed sand particles to embed the sand particles on the surface of the uncured fiber-reinforced cement board material, and then uncured. The fiber-reinforced cement plate material is cured and cured, and after the curing and curing, an uneven pattern is ground, and then the surface of the processed plate material is painted in an arbitrary color. Exposed part or all of the colored sand particles
A surface patterning method for a fiber-reinforced cement board material, characterized in that the paint is then cured.