JPH01131000A - Manufacture of "cloisonne"-like decorative board - Google Patents

Abstract

PURPOSE: To develop an elegant color tone of a cloisonne-like by etching a part except a resist image printed on an upper surface of a placenta, floating printing elements of the image, then laminating a metal foil, coloring it, then polishing it and executing a transparent top coating on the overall surface. CONSTITUTION: A desired picture, pattern, character or the like is printed on an upper surface of a placenta 1 of a raw material such as a copper or copper alloy by using plating resistant, acid resistant, alkali resistant resist ink 2 having high viscosity. Then, the placenta 1 in which a resist image 3 is printed is dipped in corrosion liquid to form etched pattern character, thereby floating printing elements of the image. Thereafter, a gold or silver foil 4 is adhered to the overall surface of the placenta with the image. A color pattern 5 is colored thereon by using synthetic resin paint. Then, the floated elements are polished until the placenta 1 of copper or brass material, and clearly distinctly floated. When the exposed elements are gold-, silver-or chrome-plated, the elements are beautifully finished. Eventually, a transparent top coating 7 is executed on the overall surface to provide the cloisonne-like decorative plate.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for producing a novel cloisonné-style decorative board that exhibits the beautiful decorative effect of cloisonné.

[Prior art] Cloisonné plates are made by applying a glass glaze with a desired coloring agent to each section on a placenta made of a metal plate made of copper, silver, etc., whose surface has been decorated with convex section patterns or letters, etc. It is painted and baked, and is prized as a work of art and craft because it produces a glossy color pattern and the color pattern brings out the traditional beauty of old Japanese rice.

In recent years, cloisonné boards have been widely used not only for traditional arts and crafts, but also for building walls, ceilings, doors, wainscoting, curtain boards, stair railings, fittings, murals, and accessory products. used).

Conventionally, there are various methods for manufacturing this cloisonné plate. For example, the surface of the base plate is polished with diamond sand, etc., and then thin, flat wires of silver, brass, or gold are combined in a pattern, and silane is applied. Using white koji paste made by drying the roots, apply it vertically on top of the substrate, attach a transparent glass shaft to it, and bake it to attach the wire, at the same time as creating a base over the entire surface. Next, mix white koji paste on colored glass with the desired color, apply it within the outline, fire it at around 1000°C, apply the glass shaft on top of it using the same method, repeat firing several times, and then polish the surface. The product is polished and finished to give it a glossy finish. This is the outline of wired cloisonné.

In addition, there are wireless cloisonnés, which omit metal wires so that the colors are closely matched, seitai cloisonnés, which omit the base metal, and transparent cloisonnés, which use transparent colored glass.

In addition, the surface of cloisonné is usually polished and smoothed, but gold,
There is also a type of cloisonné known as Tsuiki Cloisonné, in which letters, etc. are stamped onto a base material such as silver, copper, or iron, and a glass shaft is baked onto it.

Badge cloisonné generally refers to small products such as insignia and brand names, but luxury items include medals and award tiles. There are also accessories, accessories, and watches painted in color.

[Problems to be solved by the invention] However, although these cloisonné plates are excellent works of art and crafts that express the traditional beauty of old Japanese rice, the method is extremely complicated and the production process takes a long time. It requires skill and is expensive.

The present invention was developed in view of these problems, and has been developed over many years using copper or copper alloy plates and various paints as main materials, as well as through experience and research on coloring technology for copper materials. This is a completely new manufacturing method for cloisonné-style decorative boards, which is not related to Noriharu, but is inspired by tsukiki cloisonné, gold, and silver foil base methods, and is especially suitable for decorative boards for murals, sculptures, etc. The purpose is to provide

Means for Solving Problem E] The structure of the present invention for achieving the above object is to form a desired painting or pattern on the upper surface of the placenta of copper or copper alloy material.

A resist image such as letters is printed, and then the parts other than the resist image are etched by chemical means to make the line of the Renost image stand out. After that, metal foil such as gold leaf is pasted on the entire surface and colored. After this, the object line of the resist image is polished until the placenta is exposed, and then a transparent top coat is applied to the entire surface.

[Example 1 Next, embodiments of the present invention will be described in detail in the order of manufacturing steps.

The placenta 1 used in the present invention is made of copper or a copper alloy material. For example, in addition to a pure copper plate, a brass plate made of an alloy with zinc can be used, and the thickness thereof is usually 0.5 to 1.5 mm. 0
It belongs to LIll. In order to make a decorative plate with a beautiful finish, the base of the placenta 1 is preferably polished and washed with chemicals and water to prevent scratches and oil stains.

Desired pictures, patterns, letters, etc. can be applied to the upper surface of the placenta 1 using, for example, a highly viscous resistant plating made by dissolving chlorine-containing polypropylene resin in an aromatic hydrocarbon solvent.

Print using acid-resistant, alkaline resist ink 2. This printing method may be performed by hand, but it is more efficient to print using a screen plate type (not shown) for printing the resist ink 2 on the top surface of the placenta. This is preferable because the fine lines of image 3 can be printed clearly (FIG. 1).

Next, the placenta 1 with the resist image 3 printed thereon is immersed in an etchant, for example, a ferric chloride solution (dissolved in 3 parts ferric chloride and 1 part water), and the parts other than the resist image 3 are etched. ) to form engraved pattern characters and make the lines of the image stand out. Usually, it is 30 to 40 minutes in summer and about 1 hour in winter. After soaking, the placenta is thoroughly washed with water and dried (Figure 2).

Gold or silver M4 is applied to the entire surface of the imaged placenta thus obtained.
Paste. An adhesive is used for this pasting, such as lacquer or synthetic resin paint ("Cashew Thinner" manufactured by Cashew Co., Ltd., 97 parts of paint when the ambient temperature is 0°C):
A ratio of about 3 parts of thinner is good, and when the ambient temperature is 25°C, there is almost no need to mix thinner. ) is used. This adhesive is extremely sticky, so after stirring it well with a lacquer brush, apply it thinly and evenly.
When applied thickly, *, the thickness of silver foil is 1/10000+
Since it is extremely thin (O+N), it will shrink on drying and cause wrinkles later on, so it is desirable to spread it as thinly as possible and apply it.

And the color pattern is painted on this gold or silver foil? ! −
It will be done. A synthetic resin paint is used for this, for example, a high viscosity paint containing an acrylic resin as a main component, a coloring agent dispersed therein, and an aromatic hydrocarbon solvent is applied for coloring. Although this method may be applied with a brush, it is preferable to apply the color by spraying, since it can be applied evenly and gives a beautiful finish. Many types of such paints are available in different colors (Figure 3).

The colored placenta is then polished to expose the exposed image area of the resist image until the placenta 1 made of copper or brass is exposed, thereby making the image area clearly stand out. This polishing is carried out with great precision using sandpaper, sand plaster, polishing mats, grindstones, etc. (Figure 4).

Preferably, this exposed image area is electrodeposited (plated) with gold, silver, chromium, etc. (this is good because it gives a beautiful finish to the image area. This method uses a normal electrolysis method.
It is a method for depositing metal, and an electrodeposited layer can be formed by appropriately adjusting the composition of the electrolytic solution, the type of electrode, applied voltage, current density, bath temperature, time, etc. It goes without saying that a drawing area with a specific color tone can be obtained depending on the type of metal (FIG. 5).

Finally, a transparent top coat is applied to the entire surface to form the cloisonne style decorative board of the present invention. The transparent top coat is, for example, a paint made by dissolving an acrylic resin in an aromatic hydrocarbon solvent, and is applied thinly and uniformly by a spraying method. This application causes the color pattern to stand out clearly and three-dimensionally, giving a sense of layered aesthetics (Figure 6).

The cloisonné-style decorative board thus obtained is used as a decorative panel by being attached to a picture frame that matches the pattern and color tone of the decorative board.

[Function of the invention 1] Unlike the conventional manufacturing method for cloisonné plates, the method for manufacturing decorative plates configured as described above does not require the complicated method of firing glass glaze several times, so the work is efficient and can be produced in large quantities. For production,
Moreover, it is possible to reduce costs.

If resist images such as pattern letters are printed by screen printing, even fine lines can be printed efficiently and clearly, and the line parts raised by etching can be exposed, and the plated areas can also be printed clearly. The image is clear. In addition, gold and silver foil are pasted on the screen.
This is colored with a glossy colored acrylic resin in a Japanese glass style, so a beautiful decorative board similar to a cloisonné board can be obtained.

[Effects of the Invention] As explained above, the cloisonné-style decorative plate of the present invention is a new art or craft that is made of copper or brass plates and various paints, and was completed through experience and research in copperware coloring technology. It gives an elegant cloisonné-like color tone. and,
Since it is suitable for mass production and can be provided at low cost, it has utility value not only in murals, figurines, and ornaments, but also in a wide range of construction materials, accessory products, and the like.

[Brief explanation of the drawing]

FIGS. 1 to 6 are diagrams for explaining the creative process for manufacturing the cloisonné-style decorative plate of the present invention, each of which is shown as an enlarged sectional view of the main part.

Claims (1)

[Claims] 1) A resist image such as a desired picture, pattern, character, etc. is printed on the upper surface of the placenta of copper or copper alloy material, and then parts other than the resist image are etched by chemical means to create the resist image. After embossing the drawing area, apply metal foil such as gold leaf to the entire surface,
A method for manufacturing a cloisonné-style decorative board, which comprises: after coloring, polishing the lateral line part of the resist image until the placenta is exposed, and then applying a transparent top coat to the entire surface. 2) The method for producing a cloisonné-style decorative plate according to claim 1, wherein the resist image is printed by screen printing. 3) The cloisonné style according to claim 1 or 2, characterized in that after polishing the image area of the resist image, the side line area is plated with one type selected from gold, silver, and chrome. Method of manufacturing decorative boards.