JPS6365518B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a transfer paper for simple proofing, which allows the ceramic pigments used to be transferred to a test material and the printed colors to be proofread within a few hours after the start of production.

When manufacturing transfer paper for conventional color printing (including light black, black ink, etc.), we conducted a test before the actual printing in order to find out whether the color development by baking of the ceramic pigments mixed into the ink equipment or spread over the binder is appropriate. We are creating proof transfer paper for testing transfer and printing. However, conventionally, drying by oxidative polymerization
Since we use oxidative polymerization type varnish or room temperature evaporation drying type varnish, which takes about a day to dry, it takes at least 24 hours for baking proofing, but usually it takes about 1 day.
It takes ~2 weeks. The present invention eliminates such drawbacks and uses a photolithography method by using ceramic pigments for testing as fine powders, curing the adhesion of the fine powders by exposure to light, and using a resin material that is sticky in the unexposed state. In this method, a transfer paper is made, and a pattern is formed by sprinkling and adhering pigment immediately after exposure. For the resin materials mentioned above, the drying process is UV
The process is extremely short due to the curing process, etc., and existing exposure facilities with simple equipment can be used, and the time required to transfer to test materials such as ceramics and enamel can be significantly shortened, making it easier to use. The purpose of this invention is to provide a transfer paper for proofreading, and to eliminate the above-mentioned drawbacks of the conventional technology.

In the present invention, the resin material coated on the transferable mount may be one that is cured by exposure to natural light, but due to the handling of exposure, it has a property of being cured by being exposed to short wavelength light such as long ultraviolet rays or short ultraviolet rays. It is appropriate to select one of the following. Such a photosensitive resin has adhesive properties in an unexposed state and is suitable as an adhesive for ceramic pigments. However, if it is cured by exposing it to appropriate light, it loses its adhesive properties. The mount may be one used for industrial transfer paper with a water-soluble glue layer, or one that can be peeled off while leaving the resin coating layer on the transfer test material such as porcelain or enamel after the transfer operation. A layer provided with a soluble mold release agent may also be used. The coating of the resin material may be applied by screen printing, or other simple roll coater machines may be used. The thickness of the coating is
A thickness of about 20μ is sufficient.

Embodiments of the color proofing transfer paper of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 denotes the mount described above, on which a thermal release layer 2 is provided. 3 is a coating layer of a photosensitive resin commonly called ultraviolet resin that hardens upon exposure to light, and a layer 4 of a thin transparent film that can be peeled off is overlaid on the coating layer, and an exposed paper 5 is formed.
Create.

An original image 6 such as a positive film or a negative film is closely attached to the transparent film layer 4 on the exposure paper 5 shown in FIG. 1, and exposed as shown in FIG. The photosensitive resin coating layer 3 is exposed, and a ceramic pigment fine powder 7 prepared according to a predetermined color design is sprinkled thereon (FIG. 3), and the undried portion 3 of the coating layer 3 is
Partially adheres due to the viscosity of a, and remove the excess with a brush. When layering ceramic pigment powders 7 of different colors, repeat the formation of photosensitive resin coating layer 3, exposure, and adhesion of pigment fine powder 7 on top of this, and if transfer is not performed immediately, An overcoat layer 8 of a peelable resin is applied (FIG. 4). (When performing slide transfer, the overcoat layer 8 becomes the outer surface during transfer, so there is no need to peel it off.) After soaking in water, remove the backing paper and apply a transfer on the surface of the test material using a conventional method. In the case of thermal transfer, apply heat after transfer, peel off the backing paper, heat it in a painting furnace, and test the color of the print. , If necessary, perform calibration using complementary colors of unused ceramic pigments.

The proofing transfer paper of the present invention is not manufactured as elaborately as the transfer paper for actual printing, but it is prepared based on an appropriate design in order to test the color development of ceramic pigments and perform color proofing. It has the excellent effect of making it possible to use ceramic pigments that have been produced in a variety of colors, and that color proofing before final printing can be carried out much faster than in the past.

[Brief explanation of drawings]

1 to 4 are cut side views showing the transfer paper for simple proofreading of the present invention in the order of production. 1... Mounting paper, 3... Photosensitive resin coating layer, 6... Original picture, 7... Ceramic pigment fine powder.

Claims (1)

[Claims] 1. Coating a resin material that maintains adhesiveness in an unexposed state and hardens when exposed to light on a transferable mount, exposes the original image to the resin material, and removes the original image and coats the resin material. A transfer paper for simple proofreading, characterized in that a ceramic pigment for color testing is sprinkled and adhered to the remaining unexposed areas, and the ceramic pigment is transferred together with a resin material to perform a baking test. .