JPH0458538B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to the construction of an exterior wall of a building in which a unique relief decorative pattern can be easily formed by pasting a decorative sheet on the exterior wall of the building. It is about the method.

[Conventional technology]

The most common method for forming beautiful decorative walls by adding decorative patterns to the exterior walls of buildings is to attach tiles to the exterior walls of the building framework.

In addition, a method of forming an inorganic or organic paint for building materials on the outer wall by means such as coating or spraying is also used.

[Problem that the invention seeks to solve]

Decorative finishing of the exterior walls of buildings using the tiles described above requires attaching a large number of tiles directly to the exterior walls of the building by hand, which is cumbersome, requires considerable skill, and is costly. Becomes high.

Furthermore, when inorganic tiles are used, they also have the disadvantage of cracking when exposed to wind and rain.

In addition, when finishing the exterior wall with paint, it is necessary to bring the paint material to the construction site and apply or spray the paint with this paint material, which requires a complicated construction similar to the above-mentioned tile construction. Not only that, but it also requires consistent painting work at the construction site, which inevitably results in large-scale work.

Furthermore, the odor from the paint, the dust generated, and the noise generated during construction often cause a nuisance to the neighborhood.

[Means for solving problems]

This invention solves the problems of the conventional exterior wall decorative finishing method described above, and uses the exterior wall of a building as a decorative material.
The present invention relates to a novel method that can simply and easily form a beautiful decorative finished wall with a three-dimensional effect by pasting it on the surface of an external wall.

That is, this invention sprays an acrylic rubber paint mixed with urethane resin chips onto one side of a grid-like glass fabric material having a relatively fine mesh, leaving only a portion of the glass fabric material. By applying the decorative sheet, a decorative sheet having a flexible coating film with a predetermined pattern with irregularities formed on the surface is obtained, and the decorative sheet is adhered to the outer wall of the building coated with the acrylic rubber paint. It is characterized by this.

The method for constructing the outer wall of the building of this invention is as follows:
A decorative sheet obtained using a special structure is attached to the outer wall of a building frame, and the grid-like fabric material with a relatively fine mesh used to form this decorative sheet is made of glass. It is a glass cloth made by arranging yarns vertically and horizontally and combining them into a relatively fine lattice, and bonded with a binder without weaving, or woven using glass fibers.

There is no particular limit to the thickness of the fibers of this fabric material, but since this fabric material has a pattern made of a flexible coating film formed on one side and supports this, the fiber thickness is not limited. The mesh must have toughness to the extent that its strength is not impaired, and a mesh size of about 0.5 to 3 mm is suitable for use.

On the other hand, the material for forming the coating film formed on one side of this glass fabric material is mainly composed of acrylic acid ester polymer, and contains pigments, coating film forming aids, dispersants, antifoaming agents, and other ingredients. This acrylic rubber-based paint is made by mixing urethane resin chips into the paint that is made into an emulsion by adding
It is a spray-type paint that is inherently water and alkali resistant, and can form a flexible coating film with excellent weather resistance that does not discolor when exposed to direct sunlight.

The urethane resin chips mixed into the spray-type acrylic rubber paint have an average particle size of 0.1
mm to 1.0 mm are preferably used, and the blending amount of the urethane resin chips to the resin component in the main paint is 10 to 50% (wt%; the same applies hereinafter), especially 25
It is preferable to set it as the range of around %.

If the amount of chips is too large, the fluidity of the paint may decrease, making spraying difficult.
The flexibility of the resulting coating film tends to decrease.

On the other hand, if the amount is too small, the urethane resin chips will not have the effect of forming an uneven surface due to the swelling of the paint film, and the use of the urethane resin chips will give the paint a moderate binder effect, so this There is a risk that the binder effect will be reduced and a relatively brittle coating film will be formed.

The acrylic rubber paint containing urethane resin chips can be sprayed onto the glass fabric material as follows.

That is, a plate-shaped body serving as a substrate is prepared, and the glass fabric material is spread on the surface of this substrate, leaving a part of the glass fabric material with the desired pattern on which it is to be formed, and spreading it on other parts. A masking material is placed, and the paint containing the urethane resin chips is sprayed onto the non-masking areas that are not covered with the masking material to form a protruding paint film.After this paint film is formed, the masking material is removed. After the coating film has dried, the fabric material is peeled off from the substrate together with the coating film formed thereon.

In addition, when the masking material is not peeled off from this peeled material, a decorative sheet having a desired pattern is obtained by removing it.

In this case, any type of substrate can be used as long as the fabric material spread on the surface does not move and the decorative sheet obtained by forming the coating film can be easily peeled off. Substrates such as synthetic resin plates, plywood plates, aluminum plates, and iron plates are preferably used as these, but in this case, if necessary, adhesive, adhesive, or adhesive paint may be applied to the substrate. It may be fixed so that it can be easily peeled off.

There are various methods for masking the cloth material spread on the substrate in this way, as follows.

(1) Using cardboard, plywood, metal plate, etc., make a frame in which the pattern to be formed is cut out, and place this on the fabric material.

(2) Use single-sided adhesive tape to attach and cover the area of fabric material to be masked.

(3) Apply a removable paint called strippable paint to the part of the fabric material spread on the substrate that is to be masked.

Note that these masking materials (1) to (3) are removed after the coating film is formed on the non-masking area and before or after the operation of peeling off the coating film-forming fabric material from the substrate.

As described above, paint mixed with urethane resin chips is sprayed onto the non-masking portions of the masking material thus fixed to form a protruding coating film.

Although there is no particular limit to the thickness of the paint film obtained by this spraying process, if the paint film is excessively thick, if the resulting decorative sheet is attached to a wall surface, it may not be used as a decorative wall. There is a risk of damaging the aesthetic appearance of
On the other hand, if it is too thin, it will be difficult to obtain a decorative wall with a three-dimensional effect, resulting in a poor decorative wall.

When spraying paint onto the non-masking area, it is possible to use different colors of paint on the sprayed area, taking into consideration the layout of the decorative wall, decorative patterns, and the like.

After forming such a sprayed coating film, the fabric material is peeled off from the substrate along with the coating film formed on it, but if the masking material has not been removed in advance, the masking material is removed after this peeling and the final coating is removed. The decorative sheet of this invention can be obtained.

The thus obtained decorative sheet is pasted on the outer wall of the building frame, and the outer wall of the building frame is coated with acrylic rubber that does not contain the urethane resin chips that are the main component of the paint for forming the coating film. A type of paint is applied, and the decorative sheet is attached to the coated surface.

[Effect]

The method for constructing the outer wall of the building of this invention is as follows:
The decorative sheet obtained by the method described above is pasted on the exterior wall of a building. A flexible coating film is formed by spraying paint mixed with urethane resin chips, leaving only a portion of the coating, in a predetermined pattern.

As a result, a prominently uneven coating film is formed protrudingly on the surface, forming a three-dimensionally embossed pattern.

Since the coating film formed on this decorative sheet is flexible, it is easy to attach it to the flat parts of the exterior walls of buildings, as well as to corners such as the outside corners and inside corners of the outside walls. It is also possible to bend and paste this as is.

In addition, the decorative sheet is made by leaving a part of the fabric material developed on the surface of the substrate and covering it with a masking material, and spraying a paint capable of forming a flexible paint onto the unmasked part, thereby making the material flexible. This forms a film, and as a result, the sprayed coating uniformly penetrates into the mesh of the fabric material and becomes firmly integrated, and when this fabric material is peeled off from the substrate,
This coating film can be easily peeled off.

In the decorative sheet, the fabric material is exposed as it is in the areas covered by the masking material and no paint film is formed, but the color of the fabric material is determined by the color of the building to which it is applied By choosing the same color as the acrylic rubber paint applied to the exterior wall, when this is applied to the exterior wall, the presence of the fabric material is canceled out, giving flexibility to the underlying wall surface. One of the features of the present invention is that the pattern created only by coating appears as if it were formed protrudingly, and that a decorative wall can be formed by cleverly utilizing the surface of the wall in this way.

In addition, when attaching the decorative sheet to the exterior wall of a building, the exposed portion of the fabric material due to masking of this decorative sheet is between the acrylic rubber paint applied to the wall and the coating film forming part of the decorative sheet. The intervening air is removed very smoothly from the exposed areas of the fabric material, and the sheet does not bulge or peel off due to residual air, allowing for quick and reliable adhesion. It is also possible to form a decorative wall with good appearance.

〔Example〕

Hereinafter, this invention will be explained in more detail with reference to the drawings.

FIG. 1 is a plan view showing one embodiment of a decorative sheet used in the method of constructing an outer wall of a building according to the present invention.

In Fig. 1, 1 is a decorative sheet, and this decorative sheet 1 uses a white glass cloth 2 obtained by bonding in a lattice shape using warp and weft yarns made of glass yarn. , a flexible coating film 3 with an uneven surface made of brown-colored acrylic rubber paint is formed protrudingly to form a pattern of brickwork throughout.

This acrylic rubber paint is originally known as a paint for forming a flexible paint film, and the above-mentioned paint film 3 is made by adding urethane resin chips to the resin component in the paint.
It is contained at a ratio of 25%.

This chip-containing paint is sprayed using a spray gun to form a coating film having the above-mentioned uneven surface.

The formed coating film 3 is elastic and has minute irregularities on its surface, which is a flexible coating film with three-dimensional relief. Such a decorative sheet is prepared by the following procedure. It is manufactured by

That is, as shown in FIG. 2, the above-mentioned white glass cloth 2 was placed on the top surface of a substrate 4 made of a plywood board, spread out, and rectangular cutouts in the shape of bricks were regularly provided on the top surface. A masking material 5 made of aluminum is applied.

As a result, the glass cloth 2 on the lower surface of the cutout portion of the masking material 4 is exposed to the surface.

Next, the above-described acrylic rubber paint containing urethane resin chips is sprayed onto the unmasked portions of the glass cloth 2 to form a coating film 3.

As mentioned above, the formed coating film 3 is a flexible coating film, and after being left to dry naturally,
The masking material 5 is peeled off and removed.

Thereafter, by peeling the glass cloth 2 from the substrate 4, the flexible coating film 3 is formed protrudingly on the upper surface of the glass cloth 2, thereby obtaining the decorative sheet 1 having a brickwork pattern. It is.

As shown in FIG. 3, the decorative sheet 1 thus obtained is coated with a white acrylic rubber paint 7 containing no urethane resin chips on the outer wall 6 of the building by brushing or spraying. Apply,
By pasting the decorative sheet 1 on this coated surface, the air on the back surface of the outer wall 6 and the coating film 3 can be easily excluded from the glass cloth 2 portion, and the pasting can be carried out with great precision. It is possible to form a beautiful decorative wall with a three-dimensional effect.

At that time, the masked and exposed portion of the glass cloth 2 of the decorative sheet 1 has a color that is
Since it is the same white color as the white acrylic rubber paint 7 applied to the wall, the part of the glass cloth 2 is canceled out by the color of this paint, and the formed decorative wall has only the part of the protruding paint film. The brick parts are arranged regularly and have an uneven surface, and the joints between them are formed as white joints that do not protrude due to the applied white acrylic rubber paint, making the wall surface excellent as a whole. It is possible to form a decorative wall with a brickwork pattern.

〔Effect of the invention〕

The method of this invention involves spraying an acrylic rubber paint mixed with a predetermined amount of urethane resin chips onto one side of a grid-like glass fabric material having a relatively fine mesh, leaving only a portion of the fabric material. Attached to,
A decorative sheet with a protruding flexible coating film in a predetermined pattern is obtained, and this is attached to the exterior wall of a building coated with an acrylic rubber paint that does not contain urethane resin chips. A wall having a decorative pattern with a three-dimensional effect can be created very simply and easily.

In addition, by using the same material for the paint applied to the exterior wall and the paint that makes up the coating film of the decorative sheet, substantially strong integration of the decorative sheet and the building's exterior wall surface can be achieved. The resulting exterior wall is weather-resistant and flexible, so it can be used for a long time, and there is no danger even if people come into contact with the decorated exterior wall. be.

In addition, since this decorative sheet has some exposed parts of the fabric material, when this decorative sheet is attached to the exterior wall, the air that is present between the exterior wall and the coating film forming part is Since it is easily removed from the fabric material, the sheet does not bulge due to the presence of air, making it possible to quickly and reliably attach it with a good appearance, and since the fabric material is made of glass, it is weather resistant. In addition, since it does not contain water, it can withstand long-term use.

Furthermore, by selecting the color of the fabric material and matching it to the color of the wall to which it is attached, this decorative sheet can cancel out the exposed part of the fabric material with the surface of the underlying wall, creating a coating film. It is possible to form a decorative wall in a state where only the walls are exposed, and in this way, the surface of the wall can be skillfully used to form a beautiful decorative wall, and it is easy to install on external walls and is economical. It is also excellent.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing one embodiment of a decorative sheet used in the method for constructing an exterior wall of a building according to the present invention, FIG. 2 is a perspective view showing a part of the manufacturing process of the decorative sheet, and FIG. FIG. 3 is an enlarged cross-sectional view of a main part of a wall obtained by the method for constructing an outer wall in a building according to the present invention. 1... Decorative sheet, 2... Grass cloth, 3
...Coating film, 4...Substrate, 5...Masking material, 6
...Exterior wall, 7...Acrylic rubber paint.

Claims (1)

[Scope of Claims] 1. An acrylic rubber paint mixed with urethane resin chips is applied to one side of a grid-like glass fabric material having a relatively fine mesh, leaving only a portion of the glass fabric material. By spraying, a decorative sheet with a predetermined pattern of protruding flexible coating having an uneven surface is obtained, and the decorative sheet is attached to the outer wall of a building coated with the acrylic rubber paint. A construction method for an exterior wall in a building characterized by: 2. The building according to claim 1, wherein the glass fabric material is made by combining glass yarns in a relatively fine lattice shape and bonding them with a binding material without weaving. Construction method for exterior walls. 3 The urethane resin chips have a particle size of 0.1
1. The method for constructing an outer wall in a building according to claim 1, wherein the thickness is in the range of 1.0 mm. 4. The decorative sheet is made by masking the upper surface of the glass cloth material developed on the surface of the substrate with a masking material, leaving a part of the predetermined pattern to be formed, and then applying the urethane resin to the non-masking part. Claim 1, characterized in that the glass fabric material is peeled off from the substrate together with the flexible coating after spraying an acrylic rubber paint mixed with chips to form a protruding flexible coating. A method for constructing an outer wall in a building according to item 1. 5. The method for constructing an exterior wall of a building according to claim 1, wherein the glass fabric material is made of a material of the same color as an acrylic rubber paint applied to the exterior wall of the building.