JP2005238138A - Coating method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coating method by which the texture of a natural stone can be given to the surface to be coated by adopting a new coating technique for blotting a paint droplet in a water droplet and applying/fixing the paint droplet-blotted water droplet to the surface to be coated. <P>SOLUTION: This coating method comprises: a base color paint coating step to apply/fix base color paint to the whole surface 2 to be coated of the member to be coated; a water spraying step to spray water toward the base color paint-coated surface 3 dried after the base color coating step so that many water droplets 4 are sprayed; and a paint spraying step to spray water paint of the color different from the base color toward the water-sprayed surface so that many paint droplets 5 are sprayed before the sprayed water droplets are dried. The paint droplets sprayed at the paint spraying step are blotted in the water droplets sprayed at the water spraying step, which are then spread onto the base color paint-coated surface. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention mainly uses a retaining wall concrete block, a wall panel, or the like used when constructing a concrete retaining wall as a coating target member so that the surface (surface to be painted) has a natural stone texture. The present invention relates to a painting method for painting.

  2. Description of the Related Art Conventionally, a painting method is known in which a wall surface such as a concrete retaining wall is painted with a paint so as to give a natural stone texture (see Patent Document 1).

In this conventional coating method, a thin coating surface is formed by spray coating on the surface to be coated, and this thin coating surface is formed so that the coated portion is dispersed and an unpainted background portion is generated. It was a thing.
In other words, by mixing the painted part and the unpainted background part on the thin paint surface, the density of the painted part is different from that of the solid paint, and the density of the painted part is changed by light and shade. It was designed to express facial expressions, and in particular, to express natural stone-like facial expressions by making use of the fact that the unpainted background area gradually became dirty even after construction.
JP 2002-227223 A

  The conventional painting method described above is one painting method for painting so that the surface to be coated has a natural stone texture. However, in the present invention, a new painting method in which paint droplets are soaked in water droplets and applied. It is an object to provide a painting method that employs technology to give the surface to be painted a natural stone texture.

In order to solve the above problems, the coating method of the present invention (Claim 1)
A base color painting process in which the base color paint is applied to the entire surface of the part to be painted;
A water spraying step of spraying water so that a large number of water droplets are sprayed onto the surface to be coated after the base painted surface by this base color coating process is dried,
A paint spraying step of spraying a water-soluble paint of a color different from the base color so as to spray a large number of paint drops onto the surface to be coated from before the water droplets by this water spraying process are dried,
The paint droplets produced by the paint spraying process were soaked in the water drops produced by the water spraying process and applied onto the base coating surface.

The painting method of the present invention (Claim 2)
In the coating method according to claim 1, it is configured to repeat at least two cycles or more from the water spraying step to the paint spraying step as one cycle,
The color of the water-soluble paint in the previous paint spraying process was different from the color of the water-soluble paint in the subsequent paint spraying process.

The painting method of the present invention (Claim 3)
In the coating method according to claim 1 or 2, the paint spraying step is performed while the water droplets from the water spraying step maintain a rising state due to surface tension on the surface to be coated.

If the spray is sprayed just like spraying a paint drop, the paint drop becomes a round spot and is applied to the surface to be coated, and the paint drop has no shape change and becomes an artificial pattern.
In the present invention (Claim 1), in order to bleed the paint droplets by the paint spraying process into the water droplets by the water spraying process, the paint droplets are deformed in the water droplets, resulting in a shape change in the paint droplets, You can express the texture of natural stone.

  Moreover, if the process from the water spraying process to the paint spraying process is repeated at least two cycles or more (Claim 2), it can be expressed using a plurality of colors, and a texture like a natural stone can be expressed. it can.

  In addition, when the paint spraying process is performed while the water droplets are kept in a raised state due to surface tension on the surface to be coated (Claim 3), the paint droplets by the paint spraying process are added to the water droplets by the water spraying process. Can be surely oozed.

  Even if the surface tension of the water droplet is lost and the water droplet soaks into the member to be coated, the surface to be coated of the water droplet portion is wet before the water droplet dries. In this way, before the water droplets are dried, the paint droplets produced by the paint spraying process can be soaked into the water droplets produced by the water spraying process.

  In the coating method of the present invention, the process from the water spraying process to the paint spraying process is repeated at least two cycles or more, and the paint spraying process is performed while the water droplets are maintained in a raised state by surface tension on the surface to be coated. This is most preferable in order to express a natural stone-like texture.

In this embodiment, a case where a wall panel 1 made of a concrete plate is a member to be coated and its surface is a surface 2 to be painted is taken as an example.
FIG. 1 is a cross-sectional view showing a state where a base color coating process of a coating method according to an embodiment of the present invention has been performed, and FIG. 2 is a cross-sectional view illustrating a state where a water spraying process of the coating method according to an embodiment of the present invention has been performed. FIG. 3 is a cross-sectional view showing a state where the paint spraying step of the coating method according to the embodiment of the present invention is performed.

The wall surface panel 1 has a surface to be coated 2 formed in a stone-like uneven shape, and a granite pattern having a natural stone texture on the surface (surface 2 to be painted) by the coating method of the present invention. It was made to express.
The wall surface panel 1 has a concrete wall surface such as a retaining wall block (such as an L-shaped retaining wall block or a large stacking block) or a concrete wall surface on the spot after the surface (the surface to be painted 2) has been painted. The concrete wall surface is expressed in a granite pattern by the surface of the wall panel (surface to be painted).

Next, the procedure of the coating method will be described.
First, a base agent (for example, product name Sealer 600 manufactured by Kyushu Daiichi Seika Kogyo Co., Ltd.) is applied to the surface 2 of the wall panel 1 made of a concrete plate as a member to be coated. This base agent serves as a binder for reliably attaching a paint to be applied later to the concrete surface as the surface 2 to be coated.

  Next, a gray water-soluble paint, which is a granite base color, is applied to the entire surface 2 of the wall panel 1 to which the base agent has been applied by spraying (FIG. 1). Is the base color painting process.

Next, after the base coating surface 3 by the base color coating process is dried, water is sprayed so as to spray a large number of water droplets 4 from above (FIG. 2), and this process is a water spraying process.
In this case, in this embodiment, since the material of the wall panel 1 which is a coating target member is a concrete plate, the sprayed water droplet 4 maintains a raised state on the base coating surface 3 for several seconds due to surface tension. To do.

  And while the water droplet 4 by this water spraying process is maintaining the swell state by surface tension, it is water-soluble in the color (for example, dark gray) different from the said base color so that many paint droplets 5 may be sprayed from it. The paint is sprayed (FIG. 3), and this process becomes the paint spraying process.

In this way, by performing the paint spraying process subsequent to the water spraying process, the paint droplet 5 from the paint spraying process oozes in the water droplet 4 by the water spraying process and permeates in the spilled state to penetrate the base coating surface 3. Can be applied to.
Thereby, the paint droplet 5 deform | transforms in the water droplet 4, a shape change arises in the paint droplet 5, and the texture like a natural stone can be expressed.
Note that not all of the paint droplets 5 formed by the paint spraying process enter the water droplets 4, but there are also paint droplets 5 that are applied directly onto the base coating surface 3.

Then, the cycle from the water spraying step to the paint spraying step is defined as one cycle, and is repeated two cycles or more (for example, 5 to 6 cycles).
In this case, after the paint droplets from the previous paint spraying process are dried, the water spraying process is performed from above, and while the water droplets from this water spraying process are maintained in a raised state, A different color (for example, light gray) water-soluble paint is sprayed. That is, the color of the water-soluble paint by the paint spraying process is made different for each cycle.
In this way, by repeating a plurality of cycles from the water spraying step to the paint spraying step, it is possible to express using a plurality of colors, and it is possible to express a granite pattern with a texture more like a natural stone.
In the base color coating process and the paint spraying process, a water-soluble paint is used as a paint.In this case, if a water-soluble paint having moisture permeability is used, moisture under the paint film can be released through the paint film, The paint can be prevented from peeling off by suppressing the rising of the paint due to moisture.

  After the final paint spraying process is completed, the paint droplets are dried and then coated with a clearing agent (for example, Kyushu Daiichi Seika Kogyo Co., Ltd .: trade name Clear 600A) to complete the painting process. To do.

In addition, in this invention, it is not restricted to the wall surface panel attached to concrete wall surfaces, such as a block for retaining walls shown in the Example, The wall surface panel for attaching to wall surfaces, such as a building, a civil engineering structure, a figurine, and an object Can be used as a paint target member.
The coating method of the present invention can also be applied to a case where a retaining wall block, a building, a civil engineering structure, a figurine or an object is directly painted.
Also, the material of the object to be coated is not limited to concrete, and metals such as aluminum, copper, stainless steel, and steel, wood, plastic, glass, ceramic, and the like can be used.

Moreover, it is preferable to maintain the water droplets generated by the water spraying process in a raised state for a certain time due to surface tension on the surface to be coated. For this purpose, the water absorption capacity of the surface to be coated can be adjusted.
As the means for adjusting the water absorption capacity, for example, surface treatment such as applying a clearing agent or the like to the surface to be coated, or surface processing such as densifying the surface roughness of the surface to be coated is performed. Then, the surface tension of the water droplet may be adjusted.

In addition, as a material of the coating target member, for example, a polyester fiber board (manufactured by Shikoku Textile Sales Co., Ltd.) formed by forming a polyester nonwoven fabric into a board shape by hot press molding a polyester nonwoven fabric and then performing cold press molding. ) Can be used.
This polyester fiber board is lightweight and has sufficient strength (waist), which is advantageous in terms of handling and cost as a wall panel. In this case, the density of the surface to be coated is high. It is preferable that the water droplets formed by the water spraying process be maintained in a raised state for a certain time due to surface tension.

  Further, the surface to be coated may be formed as a smooth surface, or may be formed into a stone-like uneven shape or a joint groove for tile as in the embodiment.

It is sectional drawing which shows the state which performed the base color coating process of the coating method concerning the Example of this invention. It is sectional drawing which shows the state which performed the water spraying process of the coating method concerning the Example of this invention. It is sectional drawing which shows the state which performed the paint spraying process of the coating method concerning the Example of this invention.

Explanation of symbols

1 Wall panel 2 Surface to be painted 3 Base painted surface 4 Water droplet 5 Paint droplet

Claims (3)

A base color painting process in which the base color paint is applied to the entire surface of the part to be painted;
A water spraying step of spraying water so that a large number of water droplets are sprayed onto the surface to be coated after the base painted surface by this base color coating process is dried,
A paint spraying step of spraying a water-soluble paint of a color different from the base color so that a large number of paint drops are sprayed onto the surface to be coated from before the water droplets by this water spraying process are dried;
A coating method characterized in that paint droplets produced by the paint spraying step are allowed to bleed into the water droplets produced by the water spraying step and applied onto the base coating surface. The coating method according to claim 1, wherein the cycle from the water spraying step to the paint spraying step is one cycle, and is configured to repeat at least two cycles,
A coating method in which the color of the water-soluble paint in the previous paint spraying process is different from the color of the water-soluble paint in the subsequent paint spraying process.   3. The coating method according to claim 1 or 2, wherein the paint spraying step is performed while water droplets from the water spraying step maintain a rising state due to surface tension on the surface to be coated.

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