JP2869595B2 - Finishing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for obtaining a finished surface having a three-dimensional effect with a deep pearl luster on a plate material surface or a floor surface.

[0002]

[Prior art] Conventionally, in a finishing method having a pearl luster, a base paint is applied to a wall or furniture, an industrial machine, an automobile, and the like, and then a paint containing a pearl pigment is applied thinly to finish. .

[0003]

However, on a painted surface having a pearl luster according to the conventional finishing method, the coating film is formed with an approximately uniform film thickness, so that even if there is a change due to the unevenness of the underlayer, the entire film is formed. And had a monotonous pearl luster finish.

[0004]

SUMMARY OF THE INVENTION The present invention proposes a new finishing method to solve the above problems. As a solution, first, a pattern paint having irregularities is applied to the base. Next, a synthetic resin paint containing a pearl pigment in a resin ratio of 0.1 to 2% by weight is applied to such a thickness that the projections of the pattern paint are hidden. The pattern paint having concavities and convexities as a base coating material in the present invention is, for example, the main material of a multilayer finish coating material or a thick finish coating material or a thick finish coating material among architectural finish coating materials. It becomes possible by applying. Of course, a finish coating material having a concavo-convex pattern that is not classified as a multilayer finish coating material or a thick finish coating material may be used.

Next, a synthetic resin paint containing a pearl pigment as an overcoat paint is 0.1 to 2% by weight based on the resin component.
And the viscosity at the time of use is adjusted to 80 to 150 sec with an Iwata cup before use. The content of the pearl pigment is preferably set to 0.1 to 2% by weight based on the amount of the synthetic resin used for the top coat.
If the amount is less than 0.1% by weight, it is difficult to give a pearly tone and the appearance is not good. When the content is 2% by weight or more, the pearl pigment hides the color of the base coating material and becomes only the color of the pigment, resulting in a monotonous finish. The viscosity is set so that the pearl pigment in the paint is unevenly distributed on the surface of the pattern paint after the top coat is applied and before the coating film is hardened. Remains substantially uniformly dispersed in the coating film, and if the viscosity is low (smooth), the pigment precipitates, and in both cases, the finish becomes flat. Regarding the topcoat paint, more specifically, the binder used mainly is an acrylic resin, an acrylic-polyurethane resin, an acrylic-silicone resin, a polyurethane resin, an epoxy resin, a fluorine resin, or an emulsion thereof. Is used. As the pearl pigment, an organic pigment such as natural shellfish or fish scale is used, and an inorganic pigment such as mica or mica coated with titanium oxide or iron oxide is used. The amount of application varies depending on the size of the irregularities of the base coating material which is the undercoat, but it is preferable that the projections of the base coating material be hidden. Of course, a finish in which only a portion of the protrusions appears from the topcoat paint can be considered, but it gives a different finish feeling.

[0006]

The coating film having a pearl luster applied according to the present invention not only reflects light irregularly due to unevenness of the underlayer, but also
The change in the degree of see-through of the base paint due to the deviation of the pigment or the difference in the thickness of the overcoat paint appears as a beautiful shaded pattern. This changes the pearl luster depending on the angle of incidence of light and the position of the viewer.

[0007]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a cross-sectional view of the finish of the present invention. In the drawing, reference numeral 1 denotes a plate material as an example of a base, on which an uneven pattern is formed by a base coating material 2 and a top coating 3 containing a pearl pigment is applied so that the projections of the base coating are hidden so that the present invention is achieved. Is obtained. In the embodiment, asbestos slate board is used for the board material, and JIS A
Using a synthetic resin emulsion-based multi-layer finish coating material of 6910 (for roller coating), 1.7 kg / m ^{2 was} applied. For the top coat, an acrylic urethane resin paint (trade name “Acretan” manufactured by Fujikura Kasei Co., Ltd., solid content 55%) is compared with a pearl pigment (trade name “Iliodin Ti100M” by Merck Shapan Co., Ltd.) at a resin ratio of 0. The mixture of 0.6 parts by weight was adjusted to have a viscosity of 90 sec, and was applied at an application amount of 1.5 kg / m ^{2 such} that the projections of the base paint were hidden. In Example 2, a thick finishing coating material (trade name "China Tone" manufactured by Kikusui Chemical Industry Co., Ltd.) was used as a base coating material for the concrete floor surface, which was made into a natural stone-like colorful color by colored aggregate. 4 kg / m ^{2 was} applied using three color main materials. Next, an epoxy resin (trade name “353J” manufactured by Dow Chemical Japan Co., Ltd., solid content 86%) is applied to the top coat 8.
0 parts by weight and 40 parts by weight of a curing agent (trade name “SUNMIDEIM544” manufactured by Sanwa Chemical Industry Co., Ltd.)
A mixture of 0.5 parts by weight of a pearl pigment (trade name “Iriodin colorR Ti100” manufactured by Merck Japan K.K.) was adjusted to a viscosity of 140 sec, and the applied amount was 2.0 kg so that the pattern paint was hidden. It was applied by / ^{m 2.}

The coated surface obtained by the present invention has irregularities due to the base coating material, so that the pearl pigment is shaded in the top coat. Also, after the top coat is applied, the pearl pigment precipitates before it is cured. In addition, since the sedimentation is not uniform due to the unevenness of the base coating material, it gives a unique depth. Furthermore, various expressions can be made by combining the color of the base coating material and the color of the pearl paint.

[0009]

As described above, according to the finishing method of the present invention, the pearl luster is given a depth and a change, unlike the case where the paint containing the pearl pigment is thinly finished on the uneven surface.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a finish obtained according to an embodiment of the present invention.

[Explanation of symbols]

 1 Board material 2 Base coating material 3 Top coating

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B05D 5/06 B05D 1/36 B05D 7/24 303 E04F 13/08

Claims (1)

(57) [Claims] After applying a pattern paint having irregularities as a base coating material to a surface of a plate material or a floor surface, a pearl pigment is contained as a top coating material in a resin ratio of 0.1 to 2% by weight , and
A finishing method characterized in that a synthetic resin paint whose degree is adjusted to 80 to 150 sec with an Iwata cup is applied to such a thickness that the projections of the pattern paint are hidden.