JP6241964B1 - Manufacturing method of building materials with patterned lacquer film - Google Patents

Abstract

An object of the present invention is to provide a method for producing a building material with a patterned lacquer film that can give a pattern to the lacquer film itself made of lacquer coated on the building material. The present invention relates to a method of manufacturing a building material with a patterned lacquer film in which a pattern is applied to a lacquer film made of lacquer, and the first lacquer film 1 is formed by coating the surface of the building material with lacquer and drying it. Forming a first lacquer film forming step S1, a fired part 1a obtained by firing the first lacquer film 1, and a non-fired part 1b that is not fired, and forming a pattern with the fired part 1a and the non-fired part 1b The pattern forming process S2 to be performed and the surface of the first lacquer film 1 are further coated with lacquer and dried to form a second lacquer film forming process S31. It is a manufacturing method of the building material with a pattern lacquer film which is the part which discolored the 1st lacquer film 1 by baking. [Selection] Figure 1

Description

  The present invention relates to a method for manufacturing a building material with a pattern lacquer film, and more particularly, to a method for manufacturing a building material with a pattern lacquer film that gives a pattern to the lacquer film itself made of lacquer coated on the building material.

Lacquer is generally used as a paint, and it is known that lacquer can give a unique color tone and a high-class feeling by being repeatedly applied to tableware, furniture, musical instruments, and the like.
By the way, lacquer lacquer film is resistant not only to heat and moisture but also to acid and alkali, and can be expected to have anti-corruption and insect-proofing effects. Therefore, lacquer coating technology is applied not only to tableware and furniture, but also to other fields. It is also considered to be applied to.

For example, lacquer coatings have been used for a long time in the construction field including pillars and floors.
Specifically, as a paint capable of expressing a lacquer tone, a lacquer tone black lacquer emulsion polymer is used in an amount of 10 to 70 parts per 100 parts by weight (solid content) of a vehicle (excluding a black lacquer emulsion polymer). An aqueous coating composition containing a part by weight (solid content) is known (see, for example, Patent Document 1).
Moreover, as a method of forming a lacquer-like coating film, a sol containing hafnia and / or zirconia and a natural polymer containing tannin or urushiol as constituents and / or a photocurable monomer is applied to the surface of the substrate. Gloss that applies a method of manufacturing a hard coating to be applied (for example, see Patent Document 2) and lacquer is applied directly while the surface after mortar or concrete surface cleaning is wet, and gloss coating is performed once. A coating method is known (see Patent Document 3).

JP 09-125007 A JP 2005-52774 A JP 2008-36533 A

  However, in the paint described in Patent Document 1 and the methods described in Patent Documents 2 and 3, although a lacquer-like texture can be obtained, it is not an application of pure natural lacquer. A color tone and a high-class feeling cannot be expressed sufficiently, and it is a single color, and a pattern composed of a plurality of colors cannot be formed on the lacquer film itself.

  This invention is made | formed in view of the said situation, and it aims at providing the manufacturing method of the building material with a pattern lacquer film which can provide a pattern to the lacquer film itself which consists of the lacquer coated by the building material.

  When this inventor earnestly examined in order to solve the said subject, it discovered that a lacquer discolored by baking the lacquer provided to building materials. And it discovered that the said subject could be solved by having discolored the lacquer of a desired position positively among the lacquers painted by the building material, and came to complete this invention.

  The present invention is (1) a method for manufacturing a building material with a patterned lacquer film, in which a pattern is imparted to a lacquer film made of lacquer, and the first lacquer film is formed by painting and drying lacquer on the surface of the building material. The first lacquer film forming step, the fired part obtained by firing a part of the first lacquer film, and the remaining non-fired part that is not fired are formed, and the pattern is formed by the fired part and the non-fired part. A step and a second lacquer film forming step of forming a second lacquer film by further coating lacquer on the surface of the first lacquer film and drying, the first lacquer film by firing It exists in the manufacturing method of the building material with a pattern lacquer film which is the part which changed the color.

  This invention exists in the manufacturing method of the building material with a pattern lacquer film of the said (1) description which performs baking by baking with a burner (2).

  The present invention includes (3) a pattern forming step in which a portion of the first lacquer film is covered with a coating material, and a baking process is performed so that a portion that is not covered is baked, and a portion that is covered is not baked. It exists in the manufacturing method of the building material with a pattern lacquer film as described in said (1) or (2) which forms a baking part.

  This invention exists in the manufacturing method of the building material with a pattern lacquer film as described in any one of said (1)-(3) which performs the combination of (4) 1st lacquer film formation process and a pattern formation process in multiple times.

  In the present invention, (5) the second lacquer film forming step is performed a plurality of times, and the sharpening step for forming a fine groove on the surface between the second lacquer film forming steps is performed (1) to (4). It exists in the manufacturing method of the building material with a pattern lacquer film as described in any one of these.

  The present invention includes (6) the above-mentioned (1) to (5), in which, before the first lacquer film forming process, the glue film is formed on the surface of the building material by applying glue to the surface of the building material and drying it. It exists in the manufacturing method of the building material with a pattern lacquer film as described in any one of these.

  This invention exists in the manufacturing method of the building material with a pattern lacquer film as described in any one of said (1)-(6) whose lacquer is natural lacquer.

  The present invention is as described in any one of the above (1) to (7), wherein (8) the building material is concrete, mortar, cement, calcium silicate board, flexible board, stone, brick, or incombustible wood. The manufacturing method of building materials with lacquer film.

In the manufacturing method of the building material with a pattern lacquer film of this invention, since it comprises the 1st lacquer film formation process which forms a 1st lacquer film, and the 2nd lacquer film formation process which forms a 2nd lacquer film, the surface of building materials A unique color tone of lacquer and a high texture can be imparted.
Further, the building material can be resistant not only to heat and moisture but also to acids and alkalis, and can be excellent in spoilage resistance and insect resistance.

In the manufacturing method of the building material with a pattern lacquer film of the present invention, since the first lacquer film is positively baked and discolored, and a non-fired part that does not fire, a pattern forming process for forming a pattern is provided. A pattern can be given to a lacquer film made of lacquer.
In addition, a baking part can be provided in the arbitrary positions of a 1st lacquer film.
Thereby, the obtained building material with a patterned lacquer film not only has the characteristics unique to lacquer described above, but also has excellent design properties.

In the manufacturing method of the building material with a patterned lacquer film of the present invention, when firing is performed by baking with a burner, firing by handling is possible. That is, since it becomes easy to form a baking part in a desired position, the pattern lacquer film which is more excellent in design nature can be formed.
Moreover, it is excellent in workability.

In the manufacturing method of the building material with a pattern lacquer film of the present invention, a part of the first lacquer film is covered with a coating material, and the first lacquer film is baked in a state in which the covered part is not baked. Thus, the fired part and the non-fired part can be easily formed. That is, the portion not covered with the coating material is fired to become a fired portion, and the portion covered with the coating material becomes a non-fired portion that is not fired.
Further, when a relatively simple pattern is formed, it is possible to perform the printing process on the entire surface at once instead of performing the printing process partially.

In the manufacturing method of the building material with a pattern lacquer film of this invention, the degree of discoloration of a baking part can be changed by performing the combination of a 1st lacquer film formation process and a pattern formation process in multiple times. That is, the degree of discoloration differs between the fired part that has been painted and baked a plurality of times and the fired part that has been painted and baked only once, even in the same fired part.
In this case, in the manufacturing method of the building material with a patterned lacquer film, a more complicated design can be expressed with a plurality of colors.

In the manufacturing method of the building material with a pattern lacquer film of this invention, the color tone peculiar to lacquer and a high texture can be reliably provided by performing a 2nd lacquer film formation process in multiple times.
At this time, by performing a sharpening process for forming fine grooves on the surface between the second lacquer film forming processes, the adhesiveness of the second lacquer film is greatly improved, and the second lacquer film is hardly peeled off.

  In the manufacturing method of the building material with a pattern lacquer film of this invention, the overall color tone of the building material with a pattern lacquer film obtained by performing the film formation process which forms a glue film before a 1st lacquer film formation process. In addition, the texture can be greatly improved.

FIG. 1 is a flowchart showing a method for manufacturing a building material with a patterned lacquer film according to the first embodiment. FIG. 2 is a schematic cross-sectional view for explaining a pattern forming process in the method for manufacturing a building material with a patterned lacquer film according to the first embodiment. (A) of FIG. 3 is a schematic cross-sectional view showing a building material with a patterned lacquer film obtained by the manufacturing method of a building material with a patterned lacquer film according to the first embodiment, and (b) is a pattern according to the second embodiment. It is a schematic cross section which shows the building material with a pattern lacquer film obtained by the manufacturing method of the building material with a lacquer film. FIG. 4: is a flowchart which shows the manufacturing method of the building material with a pattern lacquer film which concerns on 2nd Embodiment. FIG. 5: is a schematic cross section for demonstrating the case where a pattern formation process is performed in multiple times in the manufacturing method of the building material with a pattern lacquer film which concerns on 1st Embodiment. FIG. 6 is a photograph showing a state after the first lacquer film forming step is performed on concrete in Example 1. FIG. 7 is a photograph showing a state in which a pattern forming process is being performed on concrete in Example 1. FIG. 8 is a photograph showing the obtained building material with a patterned lacquer film in Example 1. FIG. 9 is a photograph showing the obtained building material with a patterned lacquer film in Example 2. FIG. 10 is a photograph showing the obtained building material with a patterned lacquer film in Example 3.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings as necessary. In the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted. Further, the positional relationship such as up, down, left and right is based on the positional relationship shown in the drawings unless otherwise specified. Further, the dimensional ratios in the drawings are not limited to the illustrated ratios.

In the manufacturing method of the building material with a pattern lacquer film which concerns on this invention, a pattern is provided to the lacquer film which consists of lacquer formed in the building material. That is, the “pattern lacquer film” of the building material with a pattern lacquer film means a lacquer film provided with a pattern on itself.
Here, natural lacquer is suitably used as the lacquer. Such natural lacquer includes fresh lacquer, refined lacquer such as transparent lacquer and black lacquer. In addition, additives such as turpentine oil, camphor oil, gasoline, kerosene and other solvents and pigments, abrasive powder, wheat flour, egg white, rice paste, shellfish powder, metal powder (gold, silver, platinum, etc.) are mixed with the lacquer. May be used.
Moreover, concrete, mortar, cement, calcium silicate board, flexible board, stone, brick, or incombustible wood is preferably used as the building material.

(First embodiment)
1st Embodiment of the manufacturing method of the building material with a pattern lacquer film which concerns on this invention is described.
FIG. 1 is a flowchart showing a method for manufacturing a building material with a patterned lacquer film according to the first embodiment.
As shown in FIG. 1, the manufacturing method of the building material with a pattern lacquer film which concerns on 1st Embodiment is 1st lacquer film formation which forms 1st lacquer film in the grinding | polishing process S0 which grind | polishes the surface of building material, and the surface of building material Process S1, pattern formation process S2 which forms the baking part which baked a part of 1st lacquer film, and the remaining non-baking part which is not baked, and the 1st which forms a 2nd lacquer film on the surface of a 1st lacquer film 2 lacquer film formation process S31, S32 and the 2nd lacquer film formation process are performed, and the sharpening process S4 which forms a fine groove | channel on the surface is provided.
That is, in the manufacturing method of the building material with a pattern lacquer film, the polishing process S0, the first lacquer film formation process S1, the pattern formation process S2, the second lacquer film formation process S31, the sharpening process S4, and the second lacquer film formation process S32. Each process is performed in order. As will be described later, each step may be performed a plurality of times.

(Polishing process)
The polishing step S0 is performed before the first lacquer film forming step S1, and is a step in which the surface of the building material is polished with an abrasive such as sandpaper, abrasive paper, and polishing cloth to obtain a certain surface roughness. Thereby, as for the 1st lacquer film formed in the surface of building materials, adhesiveness will improve.
Note that the polishing step S0 is not necessarily an essential step, and can be omitted.

(First lacquer film forming process)
1st lacquer film formation process S1 is a process of forming a 1st lacquer film by painting the lacquer on the surface of building materials, and making it dry.
In 1st lacquer film formation process S1, lacquer is provided to the surface of building materials using a brush, a roller, etc. FIG. The extra lacquer is preferably wiped off with a waste cloth or the like.
And a 1st lacquer film is formed in the surface of building materials by making it dry naturally.

  1st lacquer film formation process S1 can also be performed in multiple times. That is, the operation of painting and drying lacquer on the surface of the building material may be repeated. In addition, when performing the said operation repeatedly, the component of the lacquer in each operation may be the same as or different from the component of the lacquer in other operations.

Here, the thickness of the first lacquer film to be formed is preferably 5 μm or more.
When the thickness of the first lacquer film is less than 5 μm, the difference in discoloration between the fired part that has been repeatedly baked and the fired part that has been baked only once is smaller than in the above range. In some cases, a complex design cannot be expressed with a plurality of colors.
In addition, when the thickness of a 1st lacquer film exceeds 50 micrometers, in addition to the effect not improving, there exists a fault that cost becomes high.

(Pattern formation process)
The pattern forming step S2 is a step of partially firing the first lacquer film formed on the surface of the building material in the first lacquer film forming step S1. That is, it is a step of forming a fired fired part and a non-fired non-fired part for the first lacquer film.
And in pattern formation process S2, a pattern is formed by a baking part and a non-baking part.

FIG. 2 is a schematic cross-sectional view for explaining a pattern forming process in the method for manufacturing a building material with a patterned lacquer film according to the first embodiment.
As shown in FIG. 2, in the pattern forming step S <b> 2, first, the surface of the first lacquer film 1 painted on the surface of the building material 3 is covered with the covering material 5.
In addition, although the coating | covering material 5 is not specifically limited, For example, nonflammable materials, such as a flexible board and a calcium silicate board, are used.

In the pattern forming step S2, the coating material 5 has holes 5a formed at positions corresponding to the fired portions.
Therefore, even if the 1st lacquer film 1 is coat | covered with the coating | covering material 5, the part which is not coat | covered with the hole 5a will arise.
In addition, the position of the hole 5a provided in the coating | covering material 5 can be set arbitrarily. For this reason, the baking part formed through the hole 5a can also be provided in the arbitrary positions of the 1st lacquer film 1. FIG.
Incidentally, the covering material 5 is not necessarily required to cover the entire surface of the first lacquer film 1. That is, when the first lacquer film 1 is baked through the holes 5a and the fired part is formed, the covering material 5 is at least around the fired part so that the non-fired part that is not baked is not fired. What is necessary is just to be able to coat the non-fired part.

Next, a baking process is performed in a state where a part of the first lacquer film 1 is covered with the covering material 5.
Specifically, by performing a baking process with a burner toward the hole 5a of the covering material 5, a portion that is not covered with the covering portion 5 is fired to form the fired portion 1a.
Further, a portion that is covered with the covering material 5 and is not fired, and a portion that is not subjected to the baking process are non-fired portions 1b.

In the pattern forming step S2, by using the covering material 5, the fired portion 1a and the non-fired portion 1b can be easily formed.
Further, the boundary between the fired part 1a and the non-fired part 1b can be clearly formed. For this reason, it is suitable for formation of the pattern containing a sharp line.

Here, as for the baking part 1a, the 1st lacquer film 1 has discolored by baking.
For example, when the 1st lacquer film 1 is black, the baking part 1a becomes a brownish brown of wood tone. For this reason, for example, a pattern in which the brown non-fired portion 1b is provided with the brown-fired fired portion 1a at a desired position is formed on the lacquer film itself made of lacquer.

In the pattern forming step S2, the first lacquer film 1 is baked by baking with a burner. For this reason, baking by handling becomes possible.
Accordingly, for example, the first lacquer film in the portion through the hole 5a described above is not completely fired, and the fired portion 1a can be formed only at a desired position even within the range of the hole 5a.
At this time, due to a slight difference in the degree of firing, it is possible to change the hue of the fired portion such as gradation.
Therefore, in this case, it is possible to form a patterned lacquer film that is more excellent in design.
As the burner, a gas burner, a burner using gasoline, kerosene, alcohol, or the like is preferably used.

And the thing by which the baking part 1a and the non-baking part 1b were formed in the 1st lacquer film 1 itself of the surface of building materials by removing the coating | covering material 5 is obtained.
Therefore, by performing the pattern forming step S2, the first lacquer film 1 on the surface of the building material 3 is composed of the fired portion 1a and the non-fired portion 1b.

(Second lacquer film formation process)
2nd lacquer film formation process S31 is a process of forming a 2nd lacquer film by coating the surface of the 1st lacquer film 1 which consists of the baking part 1a and the non-baking part 1b, and making it dry.
In the second lacquer film forming step S31, lacquer is applied to the surface of the building material using a brush, a roller, or the like. The extra lacquer is preferably wiped off with a waste cloth or the like.
And the 2nd lacquer film is formed in the surface of the 1st lacquer film 1 by making it dry naturally.

  The second lacquer film forming step S31 can be performed a plurality of times. That is, the operation of painting lacquer on the surface of the first lacquer film 1 and drying it may be repeated. In addition, when performing the said operation repeatedly, the component of the lacquer in each operation may be the same as or different from the component of the lacquer in other operations.

(Sharpening process)
The sharpening step S4 is performed between the second lacquer film forming steps. In addition, in the manufacturing method of the building material with a pattern lacquer film which concerns on 1st Embodiment, the 2nd lacquer film formation process is divided into 2nd lacquer film formation process S31 and 2nd lacquer film formation process S32 for convenience. Describe.
Therefore, in the manufacturing method of the building material with a pattern lacquer film which concerns on 1st Embodiment, it is performed between 2nd lacquer film formation process S31 and 2nd lacquer film formation process S32 mentioned later.

In the sharpening step S4, the surface of the second lacquer film is ground with a rough grindstone, sandpaper or the like.
Thereby, since a fine groove | channel is formed in the surface of a 2nd lacquer film, the intensity | strength of a 2nd lacquer film improves greatly and it becomes difficult to peel a 2nd lacquer film.

(Second lacquer film formation process)
2nd lacquer film formation process S32 is the same process as the 2nd lacquer film formation process mentioned above, and also paints the surface of the 2nd lacquer film in which sharpening process S4 was performed, and it is 2nd by making it dry. This is the process of thickening the lacquer film.

  The second lacquer film forming step S32 can be performed a plurality of times. That is, the operation of painting and drying lacquer on the surface of the second lacquer film may be repeated. In addition, when performing the said operation repeatedly, the component of the lacquer in each operation may be the same as or different from the component of the lacquer in other operations.

Here, the overall thickness of the second lacquer film formed by the second lacquer film forming step S31 and the second lacquer film forming step S32 is preferably 5 μm or more.
When the thickness of the second lacquer film is less than 5 μm, there is a tendency that a color tone unique to lacquer and a high texture cannot be sufficiently imparted as compared with the case where the thickness is within the above range.
In addition, when the thickness of the second lacquer film exceeds 50 μm, there is a disadvantage that the effect is not improved and the cost is increased.

In the manufacturing method of the building material with a pattern lacquer film which concerns on 1st Embodiment, a building material with a pattern lacquer film is obtained by performing the process mentioned above.
(A) of FIG. 3 is a schematic cross section which shows the building material with a pattern lacquer film obtained by the manufacturing method of the building material with a pattern lacquer film which concerns on 1st Embodiment.
As shown to (a) of FIG. 3, as for the building material 10 with a pattern lacquer film, the 1st lacquer film 1 which consists of the baking part 1a and the non-baking part 1b is formed in the surface of the building material 3, The said 1st lacquer film 1 A second lacquer film 2 is formed on the surface of the film.

In the manufacturing method of the building material 10 with a pattern lacquer film according to the first embodiment, as described above, the first lacquer film forming process S1 and the second lacquer film forming processes S31 and S32 for forming the second lacquer film are performed. Since it is provided, a sufficient amount of lacquer can be applied to the surface of the building material, and the building material 10 with a pattern lacquer film having a unique color tone and high texture can be obtained.
Further, the building material can be resistant not only to heat and moisture but also to acids and alkalis, and can be excellent in spoilage resistance and insect resistance.
In the manufacturing method of the building material 10 with a pattern lacquer film, since the pattern formation process S2 is provided, the building material 10 with a pattern lacquer film which is excellent also in design property can be obtained.

(Second Embodiment)
2nd Embodiment of the manufacturing method of the building material with a pattern lacquer film which concerns on this invention is described. In addition, the description which overlaps with the manufacturing method of the building material with a pattern lacquer film which concerns on 1st Embodiment is abbreviate | omitted.
FIG. 4: is a flowchart which shows the manufacturing method of the building material with a pattern lacquer film which concerns on 2nd Embodiment.
As shown in FIG. 4, the manufacturing method of the building material with a patterned lacquer film according to the second embodiment includes a polishing step S0 for polishing the surface of the building material, a glue film forming step S5 for forming a glue film on the surface of the building material, Pattern formation process S2 which forms the 1st lacquer film formation process S1 which forms a 1st lacquer film on the surface of a glue film, the baking part which baked a part of 1st lacquer film, and the remaining non-baking part which is not baked And a second lacquer film forming step S31, S32 for forming a second lacquer film on the surface of the first lacquer film, and a sharpening process for forming fine grooves on the surface between the second lacquer film forming processes. S4.
That is, the manufacturing method of the building material with a pattern lacquer film which concerns on 2nd Embodiment is 1st Embodiment except performing the glue film formation process S5 between grinding | polishing process S0 and 1st lacquer film formation process S1. It is the same as the manufacturing method of the building material with a pattern lacquer film concerning.

(Glue formation process)
The glue film forming step S5 is a process for forming a glue film by applying glue to the surface of the building material and drying it.
In the glue film forming step S5, natural glue melted by hot water is applied to the surface of the building material using a brush, a roller or the like. In addition, it is preferable to wipe off excess glue applied with a waste cloth or the like.
And by allowing it to dry naturally, a glue film is formed on the surface of the building material.

Here, when using concrete, cement, or mortar as a building material, after forming a glue film, the first lacquer film formed by coating the surface with a first lacquer film is a lacquer such as black or vermilion. A unique color tone.
Similarly, when a calcium silicate board, a flexible board, or incombustible wood is used as a building material, it is formed by coating a first lacquer film on the surface after forming a glue film. The first lacquer film has a color tone unique to lacquer such as black or vermilion. That is, the color tone of the first lacquer film when a calcium silicate board, a flexible board, or incombustible wood is used as a building material is changed by providing a glue film in advance.

  The glue film forming step S5 can be performed a plurality of times. That is, the operation of applying glue to the surface of the building material and drying it may be repeated.

(B) of FIG. 3 is a schematic cross-sectional view showing a building material with a pattern lacquer film obtained by the method for manufacturing a building material with a pattern lacquer film according to the second embodiment.
As shown in (b) of FIG. 3, the building material 20 with a patterned lacquer film has a glue film 4 formed on the surface of the building material 3, and a first lacquer film is formed on the surface of the glue film 4. A second lacquer film 2 is formed on the surface of the 1 lacquer film 1.
And the baking part 1a1 and the non-baking part 1b are formed in the 1st lacquer film. In addition, when forming the baking part 1a1 in the 1st lacquer film 1, the glue film 4 is also baked.
Incidentally, it is possible not to fire the glue film 4 by lowering the baking temperature.

In the manufacturing method of the building material with a pattern lacquer film which concerns on 2nd Embodiment, since the glue film formation process S5 is provided, the whole color tone and texture of the building material with a pattern lacquer film can be improved extremely.
Moreover, since it comprises the 1st lacquer film formation process S1 and the 2nd lacquer film formation process S31 and S32 which form a 2nd lacquer film similarly to the manufacturing method of the building material with a pattern lacquer film which concerns on 1st Embodiment, A sufficient amount of lacquer can be applied to the surface of the building material, and a building material with a patterned lacquer film having a unique color tone and high texture can be obtained.
Furthermore, in the manufacturing method of the building material with a pattern lacquer film, since the pattern formation process S2 is provided, the building material with a pattern lacquer film which is excellent also in design property can be obtained.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment.

  In the manufacturing method of the building material with a patterned lacquer film according to the first embodiment, the polishing process S0, the first lacquer film forming process S1, the pattern forming process S2, the second lacquer film forming process S31, the sharpening process S4, and the second lacquer film. Although the forming step S32 is provided, the polishing step S0 and the sharpening step S4 are not necessarily required. That is, at least the first lacquer film forming step S1, the pattern forming step S2, and the second lacquer film forming step S31 may be provided.

In the manufacturing method of the building material with a pattern lacquer film which concerns on 1st Embodiment, although baking is performed by baking with the burner, the method of baking is not limited to this.
For example, baking can be performed using a firing kiln.

  In pattern formation process S2 of the manufacturing method of the building material with a pattern lacquer film which concerns on 1st Embodiment, although the baking part 1a and the non-baking part 1b are formed using the coating | covering material 5, the coating | covering material 5 It is not always necessary to use it. In other words, the first lacquer film 1 may be directly baked with a burner without covering the first lacquer film 1 with the covering material 5.

In pattern formation process S2 of the manufacturing method of the building material with a pattern lacquer film which concerns on 1st Embodiment, although the 1st lacquer film 1 is partially coat | covered with the coating | covering material 5, you may coat | cover the whole surface.
In this case, since the baking process may be performed on the entire surface at once, the process can be simplified and firing unevenness is hardly generated.

In the manufacturing method of the building material with a pattern lacquer film which concerns on 1st Embodiment, although 1st lacquer film formation process S1 and pattern formation process S2 are performed once, you may perform this combination in multiple times. That is, it is also possible to perform in order of 1st lacquer film formation process S1, pattern formation process S2, 1st lacquer film formation process S1, and pattern formation process S2. In this case, the degree of discoloration of the firing part can be changed.
FIG. 5: is a schematic cross section for demonstrating the case where a pattern formation process is performed in multiple times in the manufacturing method of the building material with a pattern lacquer film which concerns on 1st Embodiment.
As shown in FIG. 5, in this case, the first lacquer film composed of the fired portion 1 a and the non-fired portion 1 b of the pattern forming step (hereinafter referred to as “pre-lacquered building material”) for convenience. The lacquer film 1 is formed on the surface based on the first lacquer film forming step S <b> 1, and the surface of the lacquer film 1 is covered with another coating material 51.
In addition, the other covering material 51 has a hole 51a formed at a position corresponding to one of the two holes 5a provided in the covering material 5, and the position corresponding to the other is closed.

Next, by performing the baking process in this state, the fired part 1a corresponding to the hole 51a becomes a further fired double fired part 1c, and the fired part 1a corresponding to the closed position remains as it is. Is maintained. In FIG. 5, the lacquer film 1 is formed on the upper surface of the fired part 1 a, but the color tone when the fired part 1 a is viewed from the surface is hardly changed.
And the thing by which the baking part 1a, the double baking part 1c, and the non-baking part 1b were formed in the 1st lacquer film 1 itself of the surface of building materials by removing the coating | covering material 51 is obtained.

Here, the double baking part 1c is further discolored by baking of the baking part 1a.
For example, when the fired part 1a is light brown, the double fired part 1c is dark brown with a darker color than the fired part 1a. For this reason, for example, a pattern in which a light brown fired part 1a and a wood brown brown fired double fired part 1c are provided at desired positions on the black non-fired part 1b is formed on the lacquer film itself made of lacquer. Will be.

In the pattern forming step S2, the above-described operation can be further repeated. In this case, the color variation used for the pattern further increases.
Therefore, in the manufacturing method for the building material with a patterned lacquer film in this case, a more complicated design can be expressed with a plurality of colors.

  EXAMPLES Hereinafter, although this invention is demonstrated more concretely based on an Example and a comparative example, this invention is not limited to a following example.

Example 1
Concrete was used as the building material.
First, the concrete surface was polished with sandpaper # 320 (polishing step).
Next, a mixed liquid composed of natural lacquer and turpentine oil (lacquer: turpentine oil = 1: 1) is applied to the surface of the concrete using a roller to form a first lacquer film as shown in FIG. (First lacquer film forming step).
Next, using a burner (power torch RZ-730, cassette cylinder type), as shown in FIG. 7, the first lacquer film was fired, and then the first lacquer film was partially fired again (pattern forming step). ). In addition, baking with a burner was performed for about 30 minutes to 1 hour per m ² .
Next, a mixed liquid composed of natural lacquer and turpentine oil (lacquer: turpentine oil = 3: 1) was applied to the concrete surface using a brush to form a second lacquer film. This process was performed twice, and natural lacquer was further painted with a brush (second lacquer film forming process).
Next, water sharpening was performed using a grindstone and water-resistant paper (sharpening process).
Finally, natural lacquer was painted using a brush (second lacquer film forming step).
The photograph of the obtained building material with a pattern lacquer film is shown in FIG.

(Example 2)
A building material with a patterned lacquer film was produced in the same manner as in Example 1 except that a calcium silicate plate was used as the building material instead of concrete.
The photograph of the obtained building material with a pattern lacquer film is shown in FIG.

(Example 3)
A building material with a patterned lacquer film was produced in the same manner as in Example 1 except that a flexible board was used as the building material instead of concrete.
The photograph of the obtained building material with a pattern lacquer film is shown in FIG.

  From the results of Examples 1 to 3, it was confirmed that according to the method for manufacturing a building material with a pattern lacquer film according to the present invention, a pattern having a color tone peculiar to lacquer can be imparted to the building material.

The manufacturing method of the building material with a pattern lacquer film which concerns on this invention can be utilized for manufacture of the building material to which the pattern was provided.
According to the method for producing a building material with a patterned lacquer film according to the present invention, a pattern can be imparted to the lacquer film itself provided on the building material, and the building material is resistant not only to heat and moisture but also to acids and alkalis. It can be excellent in rot resistance and insect resistance.

DESCRIPTION OF SYMBOLS 1 ... 1st lacquer film 10, 20 ... Building material with a pattern lacquer film 1a, 1a1 ... Baking part 1b ... Non-baking part 2 ... 2nd lacquer film 3 ... Building material 4 ..・ Glue 5,51 ... Coating material 5a, 51a ... Hole S0 ... Polishing process S1 ... First lacquer film forming process S2 ... Pattern forming process S31, S32 ... Second lacquer Film formation process S4 ... Grinding process S5 ... Glue formation process

Claims (8)

A method for producing a building material with a patterned lacquer film, in which a pattern is applied to a lacquer film made of lacquer,
A first lacquer film forming step of forming a first lacquer film by coating the surface of the building material with lacquer and drying;
A pattern forming step of forming a fired part obtained by firing a part of the first lacquer film and a remaining non-fired part that is not fired, and forming a pattern with the fired part and the non-fired part;
A second lacquer film forming step of forming a second lacquer film by further coating lacquer on the surface of the first lacquer film and drying;
With
The manufacturing method of the building material with a pattern lacquer film which the said baking part is the part which discolored the said 1st lacquer film by baking.   The manufacturing method of the building material with a pattern lacquer film of Claim 1 which performs the said baking by baking with a burner.   In the pattern forming step, by performing a baking process in a state where a part of the first lacquer film is covered with a coating material, a fired part in which an uncoated part is fired and a non-fired part that is covered and not fired are formed. The manufacturing method of the building material with a pattern lacquer film of Claim 1 or 2 to do.   The manufacturing method of the building material with a pattern lacquer film of any one of Claims 1-3 which performs the combination of a said 1st lacquer film formation process and the said pattern formation process in multiple times. Performing the second lacquer film forming step a plurality of times,
The manufacturing method of the building material with a pattern lacquer film of any one of Claims 1-4 which performs the sharpening process which forms a fine groove | channel on the surface between this 2nd lacquer film formation process.   The glue film forming process of forming a glue film by giving glue to the surface of the building material and drying it before the first lacquer film forming process according to any one of claims 1 to 5. Manufacturing method of building materials with patterned lacquer film.   The said lacquer is natural lacquer, The manufacturing method of the building material with a pattern lacquer film of any one of Claims 1-6.   The method for producing a building material with a patterned lacquer film according to any one of claims 1 to 7, wherein the building material is concrete, mortar, cement, calcium silicate plate, flexible board, stone material, brick, or incombustible wood. .