JPH0940480A - Method for color drawing of figured grain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To color draw zelkova figured grains which have excellent durability and with which a wood feel is obtainable by subjecting a concrete surface to primer coating with polymer cement mortar, then drawing the figured grain patterns with inorg. pigments mixed with a penetratable acrylic resin, then finishing the surface with a durable transparent resin. SOLUTION: The concrete 1 surface is subjected to primer coating for shaping with the polymer cement mortar 2, by which the blowholes, differences in levels, defects, etc., on the surface are corrected in shapes. After the material subjected to the shape correction is dried, the surface thereof is polished with a sandpaper to a bark form. The primer coating material 3 toned to a plain wood tone by adding inorg. pigments, etc., to the penetratable acrylic high-polymer emulsion resin is applied on this surface by a flat brush. The rough sketch of the figured grain patterns are then drawn with a paintbrush and is, in succession, subjected to normal painting with the pigments toned to the figured grain colors. The various densities and fine lines of the figured grains are finished with the brush and paintbrush. The surface is coated with impregnatable dyeing pigments after drying of the figured grain drawing, by which the entire part of the hue is adjusted and the figured grains color drawing 4 is completed. Deterioration preventive transparent matte clear 5 is thereafter applied on the surface to finish the surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain drawing method for expressing wood texture on concrete or board surfaces.

[0002]

2. Description of the Related Art The following method is known as a conventional method for expressing grain.

(1) A wooden board is used as a mold, and the grain is projected on concrete, and the defective portion is handwritten or thinly laminated and locally repaired to form the grain.

(2) In Buddhist altar furniture manufacturing, a furniture maker draws a grain of high-grade material such as ebony or rosewood on a plywood with a paint to expose the grain.

(3) In concrete construction, stone materials,
The mainstream is tiles, orthopedic boards, and spray painting. In the case of shrines and temples construction, the exterior coating material finish is common for concrete construction, such as white walls, plaster, scrape off, and washout.

[0006]

However, according to the conventional method of expressing grain, it is difficult to obtain a large zelkova tree in the case of wooden construction, and the range of use is limited due to the exterior regulations and interior restrictions of the fire prevention standard, and the selection is limited. However, there is a problem in that maintenance and management is time-consuming due to fire prevention measures and corrosion measures, because there is no freedom and there is significant corrosion and deterioration due to wind and rain.

In contrast to wooden structures, concrete is fire resistant,
Although it has excellent durability, in the case of shrines and temples, etc., in the conventional exterior coating material finish, the feeling that it receives is far from wood, and not only is it not possible to obtain a satisfactory wood texture,
There is also a problem with the durability of the coating material finish.

[0008] Therefore, the present invention provides a method for painting a zelkova wood grain which is excellent in fire resistance and durability of concrete and can obtain a wood texture of a pure Japanese style similar to that of wooden construction.

[0009]

According to the present invention, the surface of concrete is shaped and primed with a polymer cement mortar to correct its shape, and the surface of the concrete is polished. Next, a grain pattern is drawn with a pigment to which a penetrating acrylic resin is added, and then the resin is finished by coating with a resin having good durability such as transparent matting clear.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Since concrete surfaces have steps, bubbles, defects, etc. and do not form a bare wood surface as they are, first, a shape correction is performed by shaping and undercoating with polymer cement mortar. Shape modification with polymer cement mortar is for creating lines and texture close to planed wood, eliminating air bubbles in concrete, shaping it into a smooth wooden surface, engraving the part with trowel engraving, and cement for top coating. Apply the filler and brush on the surface of the wood.

The grain-painting technique uses an inorganic pigment added with a penetrating acrylic resin to prevent discoloration and peeling.
A wood texture is created by drawing a grain pattern.

After the grain is drawn, a UV-absorbing fluorine-based transparent matting clear is applied to prevent deterioration of the grain pattern without damaging the wood texture. The wood texture can be maintained.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory diagram of one embodiment of the present invention.

The shape of the defective portion of the cast-in-place concrete 1 such as bubbles, steps, defects and engraved portions is corrected with the polymer cement mortar 2. Polymer cement mortar 2 has 50 parts of silica sand No. 8 as an aggregate for 100 parts of cement.
-100 parts, 30-100 parts of Shiraishi powder No. 9-10, 10-30 parts of talc powder, 0.2-0.5 parts of additive material, solid content of ethylene vinyl acetate resin polymer dispersion as an admixture 3 to 10 parts and 30 to 40 parts of water were added and kneaded. However, when a coating thickness such as a defect portion or an engraved portion is required, a lightweight aggregate in which obsidian is foamed is added to the above composition in an amount of 50 to 150 parts by volume of cement. Polymer cement mortar
A commercially available product that is generalized may be used. However, when trying to obtain a finish that is similar to that of bare wood, a fine composition of the skin is required, so the above formulation was used. The cement is based on Portland cement, but by substituting 0 to 70% of Portland cement with blast furnace slag fine powder, a finer facial expression can be obtained.

Next, after the base material was dried, the surface thereof was polished with sandpaper # 80 to # 120 so as to have a grainy appearance.

After the hardening and curing for 3 days, the grain drawing is performed. First, the solid content of the acrylic polymer emulsion resin is 7% to 2
An inorganic extender pigment and a toning pigment are added to the 0% solution, and the undercoat material 3 toned in a white wood tone is applied with a flat brush. Next, draw a rough pattern of the grain pattern with a paintbrush, and then write this book with a pigment that is toned in a grain pattern, and finish the shade and fine lines of the grain with a brush and a brush. After the grain is dried, apply the impregnating dyeing pigment,
Complete the color shade adjustment to complete the grain painting 4. The grain-painting material 4 was prepared by adding an inorganic extender pigment and a color-adjusting pigment to a 7% to 20% solid content solution of an acrylic polymer emulsion resin to obtain a desired color. Other terpene-based, acrylic urethane-based, acrylic silicon-based, and fluorine-based resins can also be used.

The transparent clear 5 for preventing deterioration was formed by applying a commercially available ultraviolet absorbing fluorine-based clear with a brush or a spray. As the protective material, acrylic, acrylic urethane, or acrylic silicon may be used as in the case of the grain-painting material 4.

[0018]

The effects of the present invention are as follows.

(1) According to the present invention, a warm wooden texture can be obtained.

(2) The conventional exterior coating requires repainting every 7 to 10 years, but in the present invention, it can be maintained and stored for a long period of time only by repainting the fluorine-based clear in about 15 years.

(3) Since the grain pattern of the main writing does not need to be rewritten as it is and has excellent durability, the running cost is low. Therefore, the fireproof property is higher than that of using high-grade wood. In addition, it is possible to obtain a product that has remarkably high quality in terms of corrosion resistance, durability and economy.

(4) In the present invention, in the construction of shrines and temples and the repair of cultural assets, a large zelkova tree cannot be obtained due to depletion of high-grade wood, and instead of wood, concrete and board surface exhibit satisfactory wood texture. be able to.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of one embodiment of the present invention.

[Explanation of symbols]

1 Concrete, 2 Polymer cement mortar base, 3 Shiraki tone primer, 4 Heather paint, 5 Deterioration transparent clear

Claims (2)

[Claims] 1. A concrete surface of a concrete surface is rectified and primed with a polymer cement mortar to correct the shape, and then brushed to give a grain-like texture. Then, a grain pattern is drawn with a pigment containing a permeable acrylic resin, followed by clear matte clearing. A method for drawing concrete grain, characterized by coating with a durable transparent resin and finishing. 2. The method for drawing a grain of concrete according to claim 1, wherein the transparent resin is a fluorine-based clear resin.