JPS58171037A - Manufacture of screen plate - Google Patents

Abstract

PURPOSE:To obtain a printing plate giving an image having a superior three- dimensional feeling by applying a photosensitive resin soln. to the surface of a screen gauze stretched on a frame to form a resin film, further forming a patterned photosensitive resin film, exposing the films through a desired pattern, and removing the unexposed part. CONSTITUTION:A screen gauze 2 is stretched on a frame 1, and a photosensitive resin soln. is applied and dried to form a resin film 3 and to fill the openings in the gauze 2. On the film 3 a patterned resin film 4 is formed using the same photosensitive resin soln. The films are irradiated with ultraviolet rays or the like through a desired pattern, and the unexposed part is dissolved and removed to obtain a screen plate having a thin film 5 and a thick film 6. The screen plate is mounted on a substrate 7 such as plywood, and synthetic resin paint is poured and rubbed in with an elastic squeezer of rigid rubber or the like to carry out printing. Thick parts 8 and gradually thinned parts 9 are formed, and a printed decorative material having a superior three-dimensional feeling is obtd.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to an improvement in the method of manufacturing a screen plate used to form a three-dimensional pattern on the surface of a substrate by screen printing.

The thickness of the coating film on conventional screen plates is the same in all parts, and the patterns created using this screen plate are simply a coating film of the same thickness appearing on the surface of the base material in a pattern. there were. Therefore, the pattern is a monotonous three-dimensional pattern.
However, the present invention solves the above-mentioned drawbacks and provides a method for manufacturing a screen plate that can express a complex three-dimensional pattern that is excellent as a dub-in by one screen printing. 1 provided by
That is, a photosensitive resin liquid is applied to the surface of the screen gauze that is stretched over a frame to form a resin film, and then a photosensitive resin liquid is applied in a pattern to form a resin film, and then the photosensitive resin is applied to the surface of the screen gauze. The present invention relates to a method for producing a screen plate, which is characterized in that after exposing a resin to a desired pattern, all of the unexposed photosensitive resin is removed.

This invention will be explained based on embodiment figures.

A screen gauze 2 is stretched on a frame 1 made of metal, wood, etc. by an appropriate means. (Figure 981-aJ The material Iiii of the screen gauze 2 is preferably metal, resin, etc.

A photosensitive resin liquid I is applied to this screen gauze 2 to make the screen gauze 2 look like it is filled with photosensitive 4*Ii[. Application methods include brushing, application using a III coater such as 〇-ru coater or 70-coater, or using a screen gauze 2'lr tension frame 1 t - a mulberry cloth that allows the photosensitive resin liquid to naturally flow from above. Conceivable.

As the photosensitive resin liquid, photosensitive resins such as vinyl acetate, acrylic, and polyester can be used, and solvent type,
Any emulsion type may be used. Put the screen gauze coated with the photosensitive resin liquid into a 2TL dryer and let the resin! After that, a photosensitive resin liquid is applied in a pattern and placed in a dryer to form a patterned resin 1lI4. (Figure 1-〇) Methods of applying in a pattern include brushing, screen marking,
Printing, stencil printing, etc. can be considered. Note that the portion to be coated in this pattern is determined by taking into account the pattern of the final screen plate.

Next, the photosensitive resin f1 coated with the film is exposed to ultraviolet rays in a desired pattern, the exposed portions of the photosensitive resin are cured, and the remaining unexposed photosensitive resin is heated with water or other By removing the organic solvent, screen plates with different partial film thicknesses of 1 ml were obtained. (Figure 1-(lJ5tj
6 indicates a thin coating film, and 6 indicates a thick coating film. As a matter of course, the part exposed to ultraviolet m* will be patterned with #! 1. Contains part of the fabric.

FIG. 2 shows a plan view of the screen plate manufactured according to the present invention. When printing on the surface of a base material such as plywood using this screen plate, the base material 7 is either plain or has a pattern printed on it. Place the above screen version on top or Vi
, and print by pouring synthetic resin paint over it, and rubbing the synthetic resin paint in with a slightly elastic squeegee such as hard rubber. Thus, when the screen plate is removed, a cut 11ii as shown in FIG.
'I can obtain a decorative material with good quality. 4! ! Figure 16 is the MuA of Figure 2! In the enlarged cross-sectional view of the decorative material printed in sections, 8 corresponds to the part surrounded by the thick coating film 6 of the screen plate, and a very thick printed coating film is obtained. 9 corresponds to the area surrounded by the thick coating film 6 and the thin coating film 5 of the screen plate, where near the thick coating film 6 a thick printed coating film can be obtained, but near the thin coating film 5 only a thin printed coating film can be obtained. As a result, the printed coating film has a thickness gradient in one direction, resulting in a very complicated three-dimensional pattern. Such a thickness gradient is very effective when colored transparent paint or translucent elm is used as the printing paint. In addition, colorless transparent coating fPFK granular colored pigments are added to make it effective during running. This is because in all of these cases, if the thickness of the printed coating film changes, a gradation will occur accordingly, and even if the same paint is used, the pattern will change in a strange way.

This departure F! Since A is configured as described above,
There is a young fruit that can be used to produce screen plates with different coating thicknesses using a very simple process.

〔Example〕

A nylon screen gauze is stretched under the rectangular wooden frame and fixed with adhesive, and vinyl acetate emulsion type photosensitive 4 is applied to the lower surface of this screen gauze.
1111IiI solution is applied and dried at 60 to 80°C to form a film. Next, the KWa type photosensitive resin solution t is applied from the lower surface of the screen gauze into a desired pattern by stencil printing.
11 cloth and dry at 60 to 80°C to form a film, then contact with a light-transmitting film Gescreen & which has a patterned pattern of light-impermeable parts and irradiate light such as ultraviolet light through the film, Only the photosensitive 5F1iI in the area where the light passed was cured, and the uncured photosensitive resin in the other areas where the light did not pass was washed away with water to obtain a desired screen plate.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing the manufacturing process of the present invention, Fig. 2 is a plan view of the screen plate produced according to the invention, and Fig. 6 is a decorative material produced using the second type of screen plate. FIG. In the drawing, 1 is a frame, 2 is a screen gauze, 3U*oil film, 4 is a patterned ma & Il, and 5 is a thin coating film. 6 indicates a thick coating. Patent applicant Mizudai Sangyo Co., Ltd.

Claims (1)

[Claims] After applying a photosensitive resin liquid to the surface of the screen gauze stretched over the frame to form resin lII, apply another kg of photosensitive resin liquid in a pattern to form a resin film, and then apply photosensitive resin. 1. A method for producing a screen plate, which comprises exposing a photosensitive resin in a desired pattern, and then removing the unexposed photosensitive resin.