JPH02171235A - Supporter for picture - Google Patents

Abstract

PURPOSE:To restrain a picture from cracking or separating, and maintain the vividness at the picture manufacturing period, and besides improve the picture printing, furthermore enable a stable quality to be maintained through raising the close adherence by using a copper foil being provided with a surface coating layer as a base material. CONSTITUTION:A copper foil is manufactured successively in such a manner that a copper material 1 is made an electrolytic solution 2, and the copper is deposited on a rotating cathodic drum, and further, it is separated therefrom then. In the next place, the copper foil forms various kinds of one layered or multi-layered surface coating layer at a stage or multi-stages. For example, at the first stage 4, the fine particles of copper and / or copper oxide are given to the copper foil in order to increase the adhering strength among the copper foil and colors and / or rear material. And, at the second stage 5, a coating layer of brass or zinc is formed so as to give a long period corrosive prevention. And, at the third stage 6, an anticorrosive treatment is further given for preventing oxidation of the copper foil or peripheral oxidation during the cutting period. Through forming the surface coating layer mentioned above, the close adherence of the colors is raised considerably, thereby making it a picture base material with an excellent anticorrosive property.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a support for paintings using copper foil as a base material, which is used when painting oil paintings, Japanese paintings, etc.

[Prior art and the problem to be solved by the invention] When painting an oil painting, a linen canvas is usually stretched over a wooden frame.
is used. Some canvases are made of cotton, and there are no restrictions on painting on boards or stones, so you can often see paintings painted on plywood and exhibited at exhibitions.

However, in most cases, cloth canvas is used. This is thought to be due to the fact that cloth has a texture, which makes it easy for paint to adhere to it, making it easier to place the paint when writing comparisons.

Oil painting was introduced from the West during the Meiji period, and to put it simply, it can be said to be a method of hardening paint with resin.

As a dual-use liquid, just as watercolors dissolve with water and Japanese paintings dissolve with glue, oil plays an extremely important role in oil paintings.

This oil can be roughly divided into three types: melting oil, which dissolves oil paint according to each technique, oil, which gives the painting its original luster, and oil, which preserves the painting with care.

Usually, commercially available oil paints themselves have already been refined to be easy to use.

A brief introduction to oil paintings is as above, but on the other hand, Japanese paintings have traditionally been made by impregnating paper with pigments and often preserving them as scrolls. For this reason, it was not possible to apply paint so thick that it could not be rolled.

However, as the above-mentioned oil paintings became more popular, Japanese paintings also started to be framed, and the tendency was to use thicker paint. In other words, people began applying a layer of ``glue'' on top of the paper to prevent the paint from seeping in, and then layering the paint thickly on top of it. For this reason, in parallel with the unique Japanese painting method, oil painting style Japanese paintings also emerged.

In this way, various techniques that started from oil painting and Japanese painting were developed, and many excellent paintings were created.
There is a very big problem with the created painting.

This is the result of cracks in the painting, and in some cases there is even a risk of it falling off. Particularly in Japan, which is extremely dry and humid, climate change has made them more brittle and more susceptible to damage.

Even in Western Europe, where the climate is dry and stable, when you look closely at famous paintings from the past, you can see countless cracks. Many people cannot help but feel sorry for the fact that dust accumulates in the cracks, making it impossible to maintain the vivid quality of the painting at the time of production, and that the painting will not only deteriorate over the years, but also be lost due to flaking. I think that the.

Cracks in paintings like this can be caused by the paint or base coating, but they are often caused by changes in the dryness and humidity of the base material, such as canvas, or expansion and contraction due to temperature changes.

Cracks in paintings such as those described above can be seen not only in paintings that are painted thickly, but also in Japanese paintings that tend to resemble oil paintings.

Despite these problems, the reality is that research is even being carried out to restore high-quality paintings in order to preserve them. Also, in old paintings, metal plates,
Copper plates, which are particularly resistant to corrosion, have been used as base materials.

This is mainly because after the Reformation, when Cadric's side sent out missionaries in search of missionary sites in the New World, they carried with them an oil painting of the image on a copper plate.

This is thought to be because it is lighter than a board, has less bulk, is far less susceptible to peeling or cracking than cloth, and is also resistant to some rain and heat.

However, since copper itself was expensive, it was impossible to obtain a flat surface, paint did not adhere well to it, and it could only be produced using very special techniques, so copper has hardly been seen since the 18th century and is still used today. It has been reached.

[Means to solve the problem]

In order to solve the above problems with picture supports, the invention of this application uses copper or copper alloy, indium or indium alloy on the surface of copper foil.

A surface coating layer containing at least one layer of zinc or zinc alloy, chromium or chromium alloy, nickel or nickel alloy, iron or iron alloy, cobalt or cobalt alloy, or an oxide of the above metal, or a composite of the above metal and the oxide. A support for paintings using copper foil as a base material, characterized by comprising: a support for paintings using copper foil as a base material; a support for paintings, characterized in that a surface film layer is applied on both sides of the copper foil; and a support for oil paintings. A support for a painting, which is a support; a support for a Japanese painting, which is a support for a Japanese painting; and a support for a painting, which is a canvas. Support for.

and the above-mentioned support for a picture, wherein the support for a picture is a support for a mural painting, and the above-mentioned painting, wherein the base material is a copper foil further subjected to anti-rust treatment on the surface coating layer. 1. The support for paintings, characterized in that it is composed of the copper foil base material and the polypropylene nonwoven fabric backing material.

and the painting support, characterized in that it is composed of the copper foil base material and the gypsum backing material, and the outermost surface,
The above-mentioned support for a picture, characterized in that it is provided with a protective resin sheet that can be peeled off during use, and the support for a picture, characterized in that it is an embossed copper foil, and the base of the copper foil. The present invention provides the above-mentioned support for a picture, characterized in that an electrolytic copper foil is used as the material.

This prevents the painting from cracking or peeling,
In addition to maintaining the vividness of the painting at the time it was made, it also improves the adhesion of the paint and improves adhesion, making it possible to maintain stable quality.

[Detailed description of the invention]

The use of copper foil plays a major role in preventing cracking and peeling due to dryness, humidity, and temperature changes, but the major drawback when using a metal base material is the adhesion of paint. Improving adhesive properties is extremely important, and this was achieved for the first time in the copper foil of the invention of this application.

The thickness of the copper foil is approximately 1 μm to 3 mm (preferably 10 μm).
0.5mm) electrolysis t! fU foil or rolling! ; Use 1 foil.

As shown in the conceptual diagram of the copper foil manufacturing process in Figure 1a, electrolytic copper foil is generally produced by using a copper raw material 1 as an electrolytic solution (copper sulfate aqueous solution) 2, depositing copper on a rotating cathode drum, and then peeling it off. Continuously manufacture copper foil. The copper foil obtained in this way is generally called main seedling 3, but the surface in contact with the drum is smooth and is called surface 8 (shining surface), and the opposite surface is shown in Figure 2. A surface having a large number of electrically deposited irregularities is called an M surface (matte surface).

Next, this copper foil (main seedling) is coated with various IM or multilayer surface coating layers in one step or in multiple steps (three steps in the figure) as shown in FIG. - By way of example, in the first step 4, fine particles of copper and/or copper oxide are applied to the copper foil in order to increase the adhesive strength between the foil and the paint and/or backing. 2nd stage 5
In order to provide long-term corrosion resistance, a coating layer of brass or zinc is formed. In the third step 6, an anti-rust treatment can be further applied to prevent oxidation of the copper foil or edge oxidation during cutting. Figure 2a is a micrograph of the matte surface of electrolytic copper M (main seedling), and Figure 2a shows that after fine particles of copper and/or copper oxide were electrically attached (electroplated) to the main seedling,
It is a copper foil with a brass coating layer (by electroplating). The many irregularities seen in the photograph significantly improve the adhesion of paint. Of course, a similar coating layer can also be formed on the matte surface of the electrolytic copper foil.

Further, after these steps, the painting support such as canvas can be coated with a protective sheet that can be peeled off by hand during use. This protective sheet has the role of preventing contamination by preventing hand oils from getting on the copper foil.

By forming the above-mentioned surface coating layer, it is possible to significantly improve the adhesion of paint and provide a base material for paintings with excellent corrosion resistance.

The copper foil base material thus obtained has several additional advantages when compared to conventional wood and cloth. it is,
It retains the adhesion of paint, and at the same time has excellent flatness and smoothness, and there is no need to fill in pores or surface undulations with a base coat (of course, base coat is not a problem, and the present invention (includes this), and primarily because the copper tones can also be used as a basecoat at the same time. If you want to bring out a strong copper color such as red, you can achieve this by applying a copper coating layer (plating layer), and you can achieve a uniform color tone of red, white, silver, and even brass to golden yellow. Further, the copper-nickel alloy layer can be varied from black to brown.

Furthermore, a coating layer of chromium or chromium alloy (including chromate and zinc chromate treatment), nickel or nickel alloy, iron or iron alloy, cobalt or gobalt alloy, indium or indium alloy, zinc or zinc alloy, or oxides thereof is formed. By doing so, it is possible to improve corrosion resistance and make the unique color tones of each material uniform. Furthermore, it is also possible to further plate other metals such as noble metals on these metals, gold, or oxides thereof.

The present invention includes these.

The copper foil base material described above can also be embossed to increase mechanical adhesive strength.

The above-mentioned copper foil surface coating layer is applied to one or both of the front and back surfaces to which paint is applied. Taking electrolytic copper foil as an example, a surface coating layer is formed on one or both of the M side and the 8th side. Adhesion to the back surface is also important for adhesion of the backing material.

The copper foil base material thus formed is cut into predetermined dimensions.

The backing materials include conventional canvas materials such as polypropylene non-woven fabric, linen, and cotton, as well as plywood and one piece of wood board.

Plaster, resin, tile, etc. can be used.

This can be selected according to the painter's preference, but the characteristics of using copper foil will not be lost.

In addition, since the copper foil base material can be easily cut with a cutter, it can be used as a canvas board, pin-up, or even as a support for wall paintings.6 Also, since these can be adhered to general buildings, they can be used for interior decoration. It can be used as exterior products, interior products such as doors, shelves, etc., and has the characteristic of being easy to replace and store.

When used as a canvas, it has a suitable amount of strength and elasticity, so you can attach a backing material such as cloth to it, tension it against a wooden frame, and feel the pleasant elasticity that you feel when you apply a paintbrush to the canvas. I have a hearing disability.

Although electrolytic copper foil has been given as an example of copper foil, rolled copper foil can also be used. Various coating layers may be formed in the same manner as the electrolytic copper foil. Rolled copper foil has more flexibility than electrolytic copper foil and is superior in strength.

In addition, the copper foil of the present invention is not only pure copper but also Ag, Sn, I
The target is a copper alloy foil that has improved strength, corrosion resistance, etc. by adding elements such as n, Fe, Ni, Cr, P, and Zn, and includes all of these.

The painting method is suitable for oil paintings (oil paintings), acrylic paint paintings, Japanese paintings, pastel paintings, ink paintings, etc., but there is nothing wrong with applying it to other painting methods.

All of them have excellent adhesion to paint, greatly reduce the occurrence of cracking and peeling, maintain the vividness of paintings and have excellent storage stability, and also give a strong sense of pleasure to the touch of a paintbrush. .

〔Effect of the invention〕

As mentioned above, by using the copper foil on which the surface coating layer of the present invention is formed as a base material, a color feeling unique to copper foil can be obtained,
It has excellent flatness, is lightweight, and provides a pleasant touch with a paintbrush, and has significantly improved adhesion with paint, which was a major drawback of copper, making it suitable for use as a support for traditional paintings. It is extremely excellent.

Moreover, it has a remarkable property of being able to prevent the occurrence of severe cracks in conventional paintings, especially when used on canvas.

[Brief explanation of the drawing]

Figure 1 is a conceptual diagram showing the copper foil manufacturing process, and Figure 2 is a surface micrograph of an electrolytic copper foil and a copper foil on which the coating layer of the present invention is formed to improve adhesion. . (a: Main seedling M side (X3000) SEM photo photo Wave foil M
(x3000) SEM photograph). 1: Copper raw material 2: Electrolyte (copper sulfate aqueous solution) 3: Raw
Foil 4: 1st stage 5: 2nd stage 6: 3rd stage 7: Foil with surface coating layer formed Patent applicant Nippon Mining Co., Ltd. (71-1%7 Figure 1 6 3rd stage 7 Surface coating foil 1 Surface-coated foil 8 Product procedure amendment April 6, 1989 Yoshi, Commissioner of the Japan Patent Office 1) Mr. Moon Tsuyoshi ■, Indication of the case 1988 Patent Application No. 324811 2 Title of invention Painting support 3, Amendment Relationship with the case filed by the person who made the patent applicant name Nippon Mining Co., Ltd.-0 Agent 105 Telephone 505-8730 Address 2-10-1 Toranomon, Minato-ku, Tokyo Brief drawing of the specification subject to amendment within Nippon Mining Co., Ltd. Explanation column 7. Contents of amendment (1) "Surface of copper foil" on page 15, line 10 of the specification is amended to "indicates the particle structure (surface condition) of the surface of copper foil." (2) Attach the power of attorney for tenant farmer Seishi as attached. that's all

Claims (12)

[Claims] (1) Copper or copper alloys, indium or indium alloys, zinc or zinc alloys, chromium or chromium alloys, nickel or nickel alloys, iron or iron alloys, cobalt or cobalt alloys, or oxides of the above metals, or A support for a painting using copper foil as a base material, characterized in that it is provided with a surface coating layer containing at least one layer of a composite of the above-mentioned metal and the above-mentioned oxide. (2) The support for a picture according to claim (1), wherein the surface coating layer is applied to both sides of the copper foil. (3) The support for paintings according to claim (1), which is a support for oil paintings. (4) The support for paintings according to claim (1), which is a support for Japanese paintings. (5) The support for paintings according to claims (1) to (4), wherein the support for paintings is a canvas. (6) The support for a painting according to claims (1) to (4), wherein the support for a painting is a support for a mural painting. (7) Claim No. (1) characterized in that the base material is a copper foil that has been further subjected to anti-rust treatment on the surface coating layer.
A support for a painting according to items (6) to (6). (8) The support for a picture according to any one of claims (1) to (7), characterized in that it is composed of the copper foil base material and the polypropylene nonwoven fabric backing material. (9) Claims (1) to (1) are composed of the copper foil base material and the gypsum backing material.
7) The painting support described in item 7). (10) The picture support according to any one of claims (1) to (9), characterized in that the outermost surface is provided with a protective resin sheet that can be peeled off during use. (11) The support for a picture according to claims (1) to (10), which is an embossed copper foil. (12) A support for a picture according to claims (1) to (11), characterized in that an electrolytic copper foil is used as a base material for the copper foil.