JPS6149900A - Duplicate copper print - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention provides a novel reproduction copperplate print that can be used in fields such as interior design and awards.

BACKGROUND OF THE INVENTION Conventionally, copperplate engravings have been viewed either as they are after being engraved, or as printed matter by printing them.

Problems to be Solved by the Invention Since the appreciation of printed copies of copperplate prints has the disadvantage of being flat, it is desirable to appreciate the engraved prints themselves. However, since the carvings are made by hand, they are unique and cannot be supplied in large quantities, so they are expensive. It would be very advantageous industrially if something with the same aesthetic appearance as carved objects could be supplied in large quantities at low cost.

Means for Solving the Problem The inventors of the present invention have discovered that by baking, corroding, and finishing a copperplate print onto a copper plate for printing substrate using photolithography, it is possible to reproduce the engraved image as it is on the substrate. It is possible to obtain a reproduction of a copperplate print that has the same aesthetic appearance as the original, and this method can also be used to create paintings such as pen drawings, oil paintings, watercolors, etc.
Photographs, portraits.

The present invention was completed after discovering that the present invention can be applied to landscapes, sculptures, objects with single characters in patterns, etc.

The process for producing a copperplate copy of the present invention is as shown in FIG. 1, and the details are shown below.

(1) Film production process Sculptures such as copperplate engravings or scratchboard engravings, paintings, photographs, portraits, landscapes, shapes, patterned objects, etc., which serve as original plates, are photographed with a camera to produce a film. Photographs can be either monochrome or color. For written materials,
Phototype letters.

Inshita 1 includes hand-drawn letters.

When photographing with a camera, halftone photography is preferable, and in this case, the number of lines is preferably around 100 lines (halftone dots within 1 inch). Although a commercially available camera for plate making may be used as the camera, in the examples of the present invention, an automatic camera manufactured by Dai-1] HonScreen Co., Ltd. was used.

(2) Substrate processing process A preservative (photosensitive liquid) is applied to the printed circuit board, a film made by camera photography is exposed and printed on the substrate, and after development processing, corrosion is applied, and then the photosensitive agent is peeled off. . In this process, the original pattern is reproduced on the board.

As the printed circuit board, a commercially available general substrate material may be used, but in the present embodiment, Toshiba Tecolite copper-clad laminate manufactured by Toshiba Chemical Co., Ltd. is used. This copper foil purity is 99.
It is a copper plate with a thickness of 35μ and 9% or more.

Although the preservative (photosensitive liquid) may be a commercially available general preservative, 0FPR-7P manufactured by Tokyo Ohka Kogyo Co., Ltd. is used here.

The viscosity of this preservative is 25CP. The Whaler method may be used for applying the preservative (coating). For example, when the rotational speed is IflOr, p, m and the viscosity is 25CP, the film thickness is 6.56 μ.

A commercially available mercury exposure machine may be used to print the film on the substrate coated with the photosensitive liquid. Here, one manufactured by Iwasaki Electric Co., Ltd. is used. The exposure time is approximately 2 minutes and 30 seconds. As the developing solution, 0FPR-7R-DE manufactured by Tokyo Ohka Kogyo Co., Ltd. is used. This is a 15% sodium hydroxide solution.

(3) Corrosion process Corrosion treatment is performed on the printed circuit board that has undergone the board processing process.

Erosion is performed once (1 step) or twice (2 steps), and each method is used depending on how the pattern is expressed.

The etching machine may be a commercially available product, and here we use a Kitamura etching machine.

A commercially available ferric chloride solution was used as the corrosive solution, and the solution concentration was Be'4.
The temperature is 0°, the liquid temperature is 24°C, and the liquid volume is 2 On.

The corrosion time varies depending on the concentration conditions of the desired replication, but on average, 1st stage corrosion takes 2 minutes and 15 seconds (corrosion degree at this time is 35μ), and 2nd stage corrosion takes 45 seconds for 1st stage (corrosion degree at this time is 35μ). The degree of corrosion was 18μ), and the second stage strength was 15 seconds (the degree of corrosion at this time was 17μ). In the case of two-stage corrosion, when the first stage of corrosion is finished, the bare surface of the metal may be exposed, and then the second stage may be carried out by applying anti-corrosion varnish to prevent corrosion.

To expose the surface of the copper, use commercially available copper plate cleaner liquid (manufactured by Yamato Shosha Co., Ltd.) and Liquid Picard (
metal layer) (manufactured by Nippon Abari Kogyo Co., Ltd.).

The anticorrosion varnish used is shellac dissolved in ethyl alcohol.

Peeling is the removal of preservatives (photosensitizers) remaining on the plate surface after corrosion. As the stripping liquid, 5-10% caustic soda is used. A suitable temperature for peeling is 40°C.

(4) Finishing process The substrate material that has undergone the corrosion process as described above is coated with a clear coating to prevent damage and rust on the plate surface.A commercially available product is used for anti-scratch and anti-rust spray application. Here, Toa Paint Co.'s Door Clarax Spray (acrylic resin, anticorrosive agent, organic solvent) is used.

In this way, a reproduction copperplate print of the present invention can be produced. Examples of the present invention will be shown below.

Example 1. The reproduction of the copperplate print of flowers and butterflies was produced according to the above-mentioned process, and the order and materials and equipment used are as follows.

1) Carve flowers and butterflies with a needle on a scratch board,
I made a board drawing.

A. I used a scratch board made in England.

2) The board drawing was photographed using a plate-making camera and a positive or negative film was made.

A. I used a Dainippon Screen Auto Companica for the plate making camera.

B. The film used was 10-8100 manufactured by Fuji Photo Film Co., Ltd.

3) A preservative (photosensitive liquid) was applied (coated) to the print base material by the Whaler method.

A. As the substrate material, Toshiba Tecolite copper-clad laminate manufactured by Toshiba Chemical Co., Ltd. was used. This copper foil has a purity of 99.9% or more.
It is a copper plate with a thickness of 35μ.

B. Preservative (photosensitive liquid) is 0FPR-7 from Tokyo Ohka Kogyo Co., Ltd.
P was used. This has a viscosity of 25CP.

C. The Whaler machine was manufactured by Kitamura.

The rotation speed during preservative coating is 1BOr, p, m.

The coating thickness was 6.56μ.

4) The pattern of the film was printed on a substrate coated with a preservative (photosensitive liquid) using an exposure machine.

A. The exposure machine used was a mercury exposure machine Idol Fin 2.0 (10 manufactured by Iwasaki Electric Co., Ltd.).

B. Exposure time was 2 minutes and 30 seconds.

5)1! The illuminated substrate was developed, the patterned copper plate was exposed, and corrosion conditions were prepared.

A. The developing solution is 0FPR-7R- manufactured by Tokyo Ohka Kogyo Co., Ltd.
I used RoE. This is a 15% sodium hydroxide solution.

6) The board with suitable corrosion conditions was placed in a corrosive machine, and subjected to two-stage corrosion using ferric chloride solution to expose the copper.

A. Two-stage corrosion was performed in the following order: first stage corrosion, skin application, corrosion varnish application, drying, and second stage corrosion.

B. A Kikumura etching machine was used.

As the C1 corrosive liquid, a ferric chloride liquid manufactured by Yamato Sho Company was used. Liquid concentration Be' 40°, liquid temperature 24°C, corrosive machine liquid volume 20
It was j7.

D. Corrosion time is 45 seconds for the first stage. Corrosion degree is 17μ. Second stage is 75 seconds. Corrosion degree is 18μ. To expose the copper, after the first stage corrosion has finished, remove the board from the corrosive machine and apply the exposer solution. The inside of the pattern was polished with liquid Piccard.

A. I used a copperplate cleaner made by Yamato Shosha for the skin removal solution. The immersion time in the liquid was 30 to 60 seconds.

B. Liquid Picard (metal layer) manufactured by Nippon Hiryo Kogyo Co., Ltd. was used.

C1 anti-corrosion varnish is applied to parts of the lines or patterns that have a beautiful copper surface after the bare finish.The ingredients of the varnish are thin plate-shaped shellac dissolved in ethyl alcohol or etching ground. .

7) Preservative (photosensitive liquid) remaining on the plate surface after corrosion
was removed (peeled off).

Δ, use a 5-10% caustic soda solution as the stripping solution, and the solution temperature is 4.
The peeling was carried out at 0° C. and for a peeling time of 1 minute 30 seconds to 3 minutes.

8) Clear coating was applied to prevent scratches and rust.

C. As the rust preventive agent, Toa Paint Co.'s Door Ink Lax Spray (acrylic resin, anticorrosion agent, organic solvent) was used.

9) Finishing and decoration example 2. Preparation of Replica of Golf Winner's Layer 1> A photo of the winner's face was shaded and photographed using a plate-making camera to produce a film.

Δ, photos of the victors will be provided by the golf club.

B. The plate-making camera used was Dainippon Screen's automatic comparator. For the halftone version, I used Dainippon Screen's contact screen. The number of screen lines is 100 to 150
line.

C. The film used was Fuji Photo Film Company's Dan-H100.

2> For the laurel leaves, the lines engraved on the copper plate were photographed using a plate-making camera, and a film was made.

A. I engraved a sketched laurel leaf on a copper plate. This sculpture was made using needle carving using the corrosion method.

B. The plate-making camera used was Dainippon Screen's automatic comparator.

C. The film is Fuji Photo Film Co., Ltd.'s 1. I used old and old 00.

3) For the letters, phototypesetting letters were photographed using a plate-making camera and film was produced.

A. The phototypesetting characters and phototypesetting machine used were those manufactured by Morisawa.

B. The plate-making camera used was an auto companica manufactured by Dainippon Screen Co., Ltd.

C. The film is Fuji Photo Film Co., Ltd.'s 1. n ~ used old OO.

4) The face photo, laurel leaf, and text were combined into a single film.

5) A preservative (photosensitive liquid) was applied (coated) to the print base material by the Whaler method.

A. As the substrate material, Toshiba Tecolite copper-clad laminate manufactured by Toshiba Chemical Co., Ltd. was used. This copper foil has a purity of 99.9% or more.
It is a copper foil with a thickness of 35μ.

pRkWr*Il/g#specialm 11-) Sora Kosuru T4
1↓/T'I n tar po -7P was used. This has a viscosity of 25 cp.

C. The Whaler machine used was made by Kikumura.

The rotation speed during preservative coating is 1BOr, pom.

The coating thickness is 6.56μ.

6) A pattern etc. of the synthetic film was printed on a substrate coated with a preservative (photosensitive liquid) using an exposure machine.

Δ, As the exposure machine, a mercury exposure machine Idol Fin 2000 manufactured by Iwasaki Electric Co., Ltd. was used.

B, n light time was 2 minutes and 30 seconds.

7) The exposed substrate was subjected to a phenomenon treatment to expose the bare copper surface of the patterned portion and to prepare corrosion conditions.

Δ, the developing solution is 0FPR-7R-O from Tokyo Ohka Kogyo Co., Ltd.
I used R. This is a 15% sodium hydroxide solution.

8) The board with suitable corrosion conditions was installed in a corrosive machine, and subjected to two-stage corrosion with ferric chloride solution and treatment to expose the copper.

A. Two-stage corrosion was performed in the following order: first-stage corrosion, surface exposure, anticorrosive varnish application, drying, and second-stage corrosion.

B. I used a Kikumura etching machine.

C0 corrosive liquid is Yamato Sho Company's ferric chloride liquid @20
It was β.

D. Corrosion time is 45 seconds for the first stage. Corrosion degree is 17μ. Second stage is 75 seconds. Corrosion degree is 18μ. To expose the copper, after the first stage corrosion has finished, remove the board from the corrosive machine and apply it to the exposure liquid. I soaked it or polished the inside of the pattern with liquid Piccard.

A. I used a copper plate cleaner made by Yamato Shosha Co., Ltd. as the skin extract. The immersion time in the liquid was 30 to 60 seconds.

B. Liquid Picard (metal layer) manufactured by Nippon Hiryo Kogyo Co., Ltd. was used.

C1 anti-corrosion varnish is applied to parts of the lines or patterns that have a beautiful copper surface after the bare finish.The ingredients of the varnish are thin plate-shaped shellac dissolved in ethyl alcohol or etching ground. .

9) Preservative (photosensitive liquid) remaining on the plate after corrosion
was removed (peeled off).

A. Use a 5-10% solution of caustic soda as the stripping solution, and the solution temperature is 4.
The peeling was carried out at 0°C for 1 minute and 30 seconds to 3 minutes according to Japanese Patent Application Publication No.

IO) A clear coating was applied to prevent scratches and rust.

A. As the rust preventive agent, Toa Paint Co.'s Door Ink Rack Spray (acrylic resin, anticorrosive agent, organic solvent) was used.

11) Effects of the Invention for Finishing, Decorating by Placing in a Picture Frame, etc.According to the present invention, a duplicate copper Sakaga that reproduces the beauty of an expensive Sakaga is submitted. The reproduced copperplate print of the present invention can be preserved semi-permanently and can be produced in large quantities at low cost, making it very advantageous from an industrial perspective.

[Brief explanation of the drawing]

FIG. 1 shows the process of producing a reproduction copperplate print according to the present invention. Patent applicant (+02) Representative of Kyowa Hakko Kogyo Co., Ltd.
Mikio Kato Representative of Asia Securities Printing Co., Ltd. Mamoru Ueno

Claims (3)

[Claims] (1) Copperplate reproductions obtained by baking, etching, and finishing sculptures, paintings, and photographs onto printing base copperplates using a photomechanical process. (2) The reproduced copperplate print according to claim 1, wherein the carvings are copperplate carvings or scratchboard carvings. (3) The reproduced copperplate print according to claim 1, wherein the photographs are taken by halftone photography.