JPS6346149B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for producing a special and novel cloisonné product.

[Prior Art] Cloisonné is a craft in which designs are created by applying enamel or glass glaze to a metal base, and is made by baking lead-containing potash glass onto the metal base at high temperatures. Copper is the most commonly used metal, followed by silver, gold, aluminum, and cast iron. Copper cloisonné, which uses copper and red copper (contains 4 to 100% zinc) as metal materials, is the most common commercially available product, and there are also silver cloisonné, aluminum cloisonné, cast iron cloisonné, etc. Products include genuine cloisonné as works of art and semi-crafted cloisonné. It can be divided into different types of Cloisonné.

The conventional manufacturing method of this type is to form the base material, polish its surface with gold steel sand, etc., then combine thin, flat wires of silver, brass, or gold in a pattern to dry the silane roots. It is fixed on the base material with the width direction perpendicular using Tsuta Shiroko glue. This is coated with transparent enamel and fired to create a base for the entire surface at the same time as the wire is implanted. Next, mix colored enamel with the desired color and apply it within the outline, fire it at around 1000℃, apply enamel using the same method and fire it several times, then polish the surface to give it a glossy finish. Take out and finish.

This is the general outline of wired cloisonné, and there are also wireless cloisonné, which omit metal wires so that the colors are closely matched, seitai cloisonné, which omit the base metal, and transparent cloisonné, which uses transparent colored enamel. .

In addition, the surface of cloisonné is usually polished and smoothed, but patterns are embossed on the base material of gold, silver, copper, iron, etc.
There is also something called tsuiki cloisonné, which is enamel-fired. To color enamel, for example, gold for red, lead chromate for red, iron oxide and manganese oxide for brown, cobalt oxide for blue, manganese oxide for purple, copper oxide, chromium oxide, Antimony oxide is used for yellow, and a mixture of cobalt oxide, manganese oxide, copper oxide, etc. or iridium oxide is used for black.

Batuji cloisonné generally refers to small products such as insignia and brand names, but luxury items include medals and award tiles. In addition, accessories, jewelry, watch sides, souvenir spoons, etc. are hand-painted or painted by transfer. Here, the conventional manufacturing method will be explained in detail step by step.

(1) Wired Cloisonné A division pattern is created by planting silver wire (1 mm width) vertically on the surface of the copper base, and then baking Cloisonné glaze (colored frit) within the lines (800-850 mm). ℃, 5 to 10 minutes) Repeat several times to finally polish the surface and attach the attached fittings to complete the product. In other words, using silver or Shinsei tape on the surface of a vase, etc., and placing it vertically in the width direction, dividing it into sections just like the lines in a Japanese painting, filling each section with glaze of each color and firing. It is richly colored.

The process of manufacturing a vase is as follows: thin copper plate → punching molding → surface polishing → pattern sketch → silver wire gluing → underglaze → dry baking → (repeat) → rough polishing → medium polishing → final polishing → installing cover ring metal fittings → product becomes.

(2) Wireless Cloisonné Wired wires are removed during the process and polished after baking. In other words, it is placed in the same way as wired cloisonné, filled with colored glaze, and then the wires are removed and fired to finish. Therefore, it is richly colored.

(3) Ministry line cloisonné A piece of wire that has been corroded and removed. That is, after firing the wired cloisonné, the silver wire is dissolved and removed with nitric acid, and the wire is fired again to finish. Obtains the same effect as wireless cloisonné. Therefore, it is richly colored.

(4) Cloisonné Cloisonné Cloisonne that has been removed by corroding the base material.
In other words, a technique in which cloisonné ware is made, the base metal is removed by polishing and strong acid from the back side, and the ware is formed using only glaze.

(5) Open Cloisonné Cloisonné made using only transparent cloisonné glaze, allowing the surface to be seen through. There are scarlet cloisonné with copper base and kegme cloisonné with silver base. In other words, some of the patterns on the cloisonné vessels can be seen through both sides, like stained glass.

(6) Colored glaze (drawing) Cloisonné The pattern is completed by repeating firing several times using a technique similar to painting a painting.
The surface has a high gloss and is not polished. There are plaques, accessories, architectural uses, decorative plates, etc.

(7) Others: embankment cloisonné, hammered cloisonné, melted cloisonné, transferred cloisonné (by screen transfer),
There is electroformed cloisonne (based on base electroforming), and the techniques include the jet glaze method, high-temperature firing method (known as kiln-hen), silver foil base method, fritted grain method, and split method (scraped glaze method). law) etc.

[Problems to be Solved by the Invention] The present invention is a completely new cloisonné that does not belong to any category of conventional manufacturing methods, but is inspired by the line cloisonne and silver foil base method, and is particularly suitable for batch cloisonné. The purpose is to provide a manufacturing method.

[Means for solving problems] The manufacturing process of the present invention will be explained step by step.

First, we stamped and formed a body made of various metal bases,
After polishing the surface and applying lining glaze to the back side, or at the same time as lining it, apply a base glaze on the inside.
Bake at around 800℃ for 20 seconds to 1 minute, then paste a 2/100 to 3/100mm thick pure silver foil over it with white koji paste or CMC (special glue) if necessary, and heat at 800℃ for a few seconds. Baked for about 2 minutes, polished, and then colored over a part or the entire surface of the glaze, metal wire made of round or flat wires, metal foil made of silver or copper, silver or Metal thin plates made of copper are individually or in combination and pasted together in a flat and wide shape using white koji glue or CMC, then heated to 700℃~
Baked at 900℃, then immersed in an aqueous solution of 50% water and 50% nitric acid or ferric chloride for about 24 seconds to 18 minutes to dissolve and remove the pasted and baked metal wire, metal foil, and metal sheet, and then washed with water. and then 180 if necessary
Polish the surface to a mirror finish with a No. 1 to 1000 file, Sumi, wax, Piccard, etc., and use 750 as a final finish.
The final cloisonné product is obtained through a series of steps including baking at ℃ for 30 seconds.

Note that the temperature conditions, time conditions, and other conditions of each step shown in the examples of the present invention are merely representative examples, and are not limited to these and can be changed in various ways.

[Effect] The cloisonné products produced in this way express a unique calmness and elegance with a glossy negative drawing,
It gives a new high-class image that cannot be obtained with conventional manufacturing methods, and when applied to Batuji cloisonné, it has excellent effects such as providing sake-flavored accessories.

Claims (1)

[Scope of Claims] 1. A base glaze is applied and fired on the molded body, and various metal wires, foils,
A cloisonné manufacturing method in which a thin plate alone or a combination of two or more of them is drawn and pasted flat, and then baked, and then the various metal wires, foils, and thin plates are dissolved from the surface of the top coat glaze. 2. A base glaze is applied and fired on the formed body, a pure silver foil is pasted and fired on top of it, and various metal wires, foils, and thin plates are used alone or in combination of two or more of these to create a flat drawing on the surface of the applied top glaze. The cloisonné manufacturing method involves dissolving the various metal wires, foils, and thin plates from the surface of the top coat glaze after applying and baking it.