JPH06102176B2 - Makeup method for building materials - Google Patents

Description

TECHNICAL FIELD The present invention relates to a technique used for applying a pattern to a building material used as an exterior material, an interior material, or the like, applying a pattern, and applying makeup.

[Prior Art] Conventionally, a makeup method such as a building material using a paint is applied by a spray, a flow coater or a roll coater, and a single color or at most two colors are applied. Further, as a method of applying the spotted pattern, there is a method of applying a brushing roll, but it is difficult to reproducibly form the spotted pattern and it is difficult to freely change the size of the spots.
There is also a method of coating and patterning while moving the spray gun with a reciprocator, but it is very difficult to set conditions such as the plate conveying speed, the reciprocator speed, and the spray pattern. There are also methods such as screen printing and gravure printing, but it is very difficult when the substrate has irregularities.

[Problems to be Solved by the Invention] In recent years, building materials such as exterior materials and interior materials that have makeup that is rich in variation that is not uniform are desired, but cannot be easily obtained by the above-mentioned conventional techniques. is the current situation.

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to enable a base material having unevenness to be continuously and reproducibly provided with a speckled pattern by a coating material. To provide a makeup method for building materials.

[Means for Solving the Problems] In order to achieve the above object, the method for applying a building material of the present invention is as follows: When the plate-shaped base material 1 is coated with a paint and a spot-like pattern is continuously applied, With pigment, B
Viscosity is less than 500cP and thixotropic property is 6rpm /
Use a sprayer with a ratio of 60 rpm of 3 to 7 and apply it to the base material coated with the above paint in a state in which it is not atomized or hardly atomized from the spray gun 2. Spray gun 2 for painting from
Use less than 60% of the center of the spray pattern, and the amount of paint discharged from the spray gun 2 is 100 to 400.
It is characterized by cc / min.

In addition, when coating the plate-shaped substrate 1 with a paint and continuously applying a spot-like pattern, the paint to be applied includes a pigment, a viscosity by a B-type viscometer of 500 cP or less, and a thixotropic property of 6 rpm. Using a material having a ratio of / 60 rpm of 3 to 7, the base material 1 coated with the above-mentioned paint is sprayed from the spray gun 2 in a state where it is not atomized or hardly atomized. When using a plurality of spray guns 2 arranged so as to be adjacent to each other in parallel with the width direction of the above, overlap 40% or more and 60% or less of adjacent spray patterns,
Further, it is characterized in that the amount of paint discharged from the spray gun 2 is 100 to 400 cc / min per spray gun 2.

Further, according to claim 1, the substrate 1 is provided with irregularities, the color of the concave portions and the color of the convex portions are changed, and a spot-like pattern is formed with a paint having a color difference ΔE with the color of the concave portions of 0.7 or less. Characterize.

The base material to be coated is used as an exterior material or an interior material, and is made of a ceramic material or other material, and if necessary, irregularities are formed on the surface. FIG. 3 shows an example of a base material, which is Multisided manufactured by Matsushita Exterior Building Materials Co., Ltd. This is made of a ceramic material, and concave portions 3 are formed in a lattice pattern on the surface of the base material 1 to form concave portions by the concave portions 3 and the surface other than the concave portions 3 is formed as a convex portion, and irregularities are provided on the surface. Dimensions of each part of this substrate 1 a, b, c, d, e, f,
g and h are a = 454.5mm, b = 56.81mm, c = 6mm, d = 152mm, e = 6m
m, f = 15.0 mm, g = 3.0 mm, h = 12.0 mm. The surface of the base material 1 is coated with a spot-like pattern with a spray gun 2. The color difference ΔE is 5 or more different from that of the paint used for the spot-like patterning before the spot-like patterning. And then apply spots on it. The color difference ΔE in the present invention is a value obtained from the Hunter color difference formula. Hu
The color difference formula in nter's L, a, b color system is ΔE (L, a, b) ＝
[(ΔL) ² + (Δa) ² + (Δb) ² ] ^1/2 , L represents lightness, and a and b represent chromaticity coordinates. The paint that applies a speckled pattern contains a pigment and has a viscosity of 500 cP measured by a B-type viscometer.
Hereinafter, thixotropy having a ratio of 6 rpm / 60 rpm of 3 to 7 is used, but these numerical values are limited for the following reason. When the viscosity of the paint is higher than 500cP by B type viscometer, the spray pattern is not stable. Also in thixotropy,
If the ratio of B-type viscometer 6 rpm / 60 rpm is less than 3, atomization is likely to occur and beautiful spots are unlikely to be formed, and if it exceeds 7, the spray nozzle of the spray gun is likely to be clogged. The pigment, solvent, and type of the coating material are not particularly limited, but as the pigment concentration, a pigment content (PWC) of 30 or more is preferable. When it is less than 30, the hiding property is poor and the spotted pattern is less noticeable. Further, it is preferable to use a paint having good weather resistance as the paint to be used, since the applied pattern does not change forever. For example, fluorine paint, modified silicone paint, inorganic paint and the like can be mentioned. The base material 1 to be coated is coated with the spray gun 2 in a state in which it is not atomized or is hardly atomized. When painting 1
When painting with two spray guns, use within 60% of the center of the spray pattern, and when using multiple spray guns, between 40% and 60% of the spray pattern
It is characterized by overlapping within. The relationship between the width BL of the substrate 1 to be coated and the spray pattern is as follows. First of all, when painting with one spray gun 2, as shown in FIG.
It is necessary to paint within%. In other words, when the width BL of the substrate 1 to be coated is GL and the spray pattern width is GL, GL ×
The relationship is 0.6 ≧ BL. If the width of the coated substrate 1 is wider than that, the speckled pattern formed in the width direction of the substrate 1 is not uniform in the width direction. Further, even when a plurality of spray guns 2 are used, the spot-like pattern is not uniform in the width direction unless the overlapping of the spray patterns is 40% or more and 60% or less as shown in FIG. That is, when the overlap of the spray patterns is W and the width of the spray patterns is GL, 0.6 × GL ≧ W ≧ 0.4 × GL. If the discharge rate of the coating material is less than 100 cc / min or exceeds 400 cc / min, the speckled pattern on the substrate 1 is not continuously stable. When a plurality of spray guns 2 are used, the difference in spray pattern width and discharge amount is within 5%. Substrate 1
After painting the spotted pattern on the, according to the paint,
Set and dry. The speckled coating may be applied several times.

Further, in the method for makeup of a building material of the present invention, unevenness is provided on the base material, the color of the concave portion and the color of the convex portion are changed, and a spotted pattern is formed with a paint having a color difference ΔE with the color of the concave portion of 0.7 or less. Is also preferable. When the color difference ΔE exceeds 0.7, the distinction between the concave portion and the spot-like pattern is so conspicuous that the appearance is not good.

[Operation] By applying the coating as described above, a spotted pattern can be continuously formed with good reproducibility even on a base material having irregularities.

[Embodiment] First, an embodiment corresponding to claims 1 and 2 will be described.

<Paint used> MFC204 (silicone type) manufactured by Fuji Fire Defense Chemicals was used. The pigment content (PWC) of this paint is 55.

<Substrate Used> Multisidizing manufactured by Matsushita Exterior Building Materials Co., Ltd. shown in FIG. 3 was used.

<Coating machine> An airless spray unit manufactured by Nordson Corporation was used.

(Procedure) The modified silicone primer made by Toshiba Silicone was applied to the above-prepared base material at a solid content of 20 g / m ² , and the temperature was maintained at 60 ° C for 30
The coating was sprayed with MFC204 at a solid content of 20 g / m ² for 15 minutes and then treated at 150 ° C. for 15 minutes, which was used for a speckled patterning experiment.

(Conditions to be examined) Paint viscosity, paint thixotropy, paint discharge amount, spray pattern.

The discharge amount of the paint was adjusted by the discharge pressure of the airless spray unit used and the tip.

As a result of investigating the patterning state under the above conditions, the results are as shown in Table 1, and it was found that the spotted pattern was continuously formed by the method of the present invention.

Next, an embodiment corresponding to claim 3 will be described.

This example is almost the same as the above example, except that the convex portions of the base material shown in FIG. 3 were coated with a roll coater, and then the patterning was carried out in the same manner as the above examples. As a result of investigating the patterning condition under different conditions, the result is as shown in Table 2.
In the method of the present invention, it was found that the color difference between the convex portion and the concave portion was identified, and the spot pattern was identified only in the convex portion.

EFFECTS OF THE INVENTION Since the present invention is applied to a base material as described above, it is possible to apply a spotted pattern continuously with good reproducibility even if the base material has irregularities. As a building material used as an interior material, it is possible to obtain a building material that is not uniform and has a wide variety of appearances. Further, in the invention according to claim 3, the convex portion and the concave portion can have different colors, and the appearance can be further changed.

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 and 2 are explanatory views for explaining a coating state by a spray gun of the present invention, and FIGS. 3 (a) and 3 (b) show an example of a base material used in the present invention. 1 is a substrate, and 2 is a spray gun.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yukio Shimada 1048, Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd. (72) Inventor Masami Yonehara 1-1036, Higashi-Naruo-cho, Nishinomiya-shi, Hyogo Fushi Fire Defense Chemistry Within the corporation (56) Reference JP-A-51-103137 (JP, A) JP-A-51-73037 (JP, A)

Claims (3)

[Claims] Claims: 1. When a plate-shaped substrate is coated with a coating material to continuously apply a speckled pattern, the coating material to be coated contains a pigment, has a viscosity of 500 cP or less by a B-type viscometer and has a thixotropic property. , 6 rpm / 60 rpm ratio of 3 to 7 is used, and the above coating material is applied to the base material to be applied in a state where it is not atomized or almost is not atomized from the spray gun,
Moreover, when painting from one spray gun, 60 from the center of the spray pattern of the spray gun.
%, And the amount of paint discharged from the spray gun is 100 to 400 cc / min. 2. When a plate-shaped substrate is coated with a coating material and a spot-like pattern is continuously applied, the coating material to be coated contains a pigment, has a viscosity by a B type viscometer of 500 cP or less, and has a thixotropic property. , 6 rpm / 60 rpm ratio of 3 to 7 is used, and the above coating material is applied to the base material to be applied in a state where it is not atomized or almost is not atomized from the spray gun,
Moreover, when painting, when using multiple spray guns that are arranged parallel to the width direction of the base material and adjacent to each other, overlap between 40% and 60% of the adjacent spray patterns and then discharge from the spray gun. A makeup method for building materials, characterized in that the amount of paint is 100 to 400 cc / min per spray gun. 3. A substrate is provided with concavities and convexities, and the color of the concave portions and the color of the convex portions are changed, and the color difference ΔE with the color of the concave portions is 0.7.
The method for applying makeup to a building material according to claim 1, wherein a speckled pattern is applied with the paint within the range.