JPS6135885A - Preparation of mark plate - Google Patents

Abstract

PURPOSE:To prepare a film having roundness at the corner part of a mark, by covering the photosensitive resin solution layer with a definite thickness formed to a subtrate with a lith film and exposing said layer to ultraviolet rays irradiated from above to draw a mark while spraying a paint to the surface of said mark. CONSTITUTION:A photosensitive resin solution 2 is applied to the surface of a substrate 1 sush as a Tetron sheet in a definite thickness to form a resin layer which is, in turn, covered with a lith film 3 and exposed to ultraviolet rays irradiated from above to draw a mark 4 such as a charactor or pattern while a paint 5 is sprayed to cover at least the surface of the mark 4 to allow the corner part of the mark 4 to have roundness. By this method, industrial production is enabled and the finishing of a product becomes well and, if this mark is used as braille, the safety and feeling of a finger chip are sufficiently secured by roundness and a desired object can be achieved.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a method for manufacturing signboards such as advertising boards, signboards, and Braille display boards.

(b) Conventional technology In order to make letters, braille, etc. into a sign board, the method used was to press one by one from the back of a metal plate to form a convex shape on the surface. Also, pour photosensitive resin liquid onto the surface of the substrate and laminate lithium film.

A method used was to irradiate this with ultraviolet light to leave letters, Braille, etc.

ti Problems to be Solved by the Invention Among the above-mentioned conventional techniques, the former involves pressing one by one, resulting in poor workability and unevenness in the finished product. In the latter case, the finished characters and Braille characters have sharp corners, making them difficult to use.Especially when using Braille characters, the corners must be polished with sandpaper to ensure safety for fingertips. This required extra man-hours.

2) Means for Solving the Problems In order to solve the above problems, the method according to the present invention involves pouring a photosensitive resin liquid onto the surface of a substrate to a certain thickness, and laminating a lithium film thereon. The upper part is exposed to ultraviolet rays to draw symbols such as letters and patterns, and at least the surface of this symbol is coated and paint is sprayed to round the corners of the symbol to form a coating. It is something to do.

(e) Working The photosensitive resin and lithium film are integrated with respect to the working substrate, and the characters and patterns are accurately positioned during the work, and the symbol itself does not require any effort during the work.

(F) In Example 1, the substrate is made of resin such as Tetron or wood, and the material is selected depending on the intended use. When used for Braille, etc., a Tetron sheet is used as the text.

Reference numeral 2 denotes a resin layer that is made to have a constant thickness by pouring a photosensitive resin liquid onto the surface of the substrate. This photosensitive resin liquid is selected from APR resins depending on the application.

3 is a photographic lithographic film laminated on the photosensitive resin liquid layer.

The lithium film prepared in this manner is exposed to ultraviolet light from above. Through this exposure process, only the transparent portion of the lithium film remains to form letters or Braille, and the other portions are washed away with weak alkaline water.

Through this step, the characters or Braille 4 have acute corner portions in cross section.

The letters or Braille are at least coated with a highly compatible paint such as melamine or clear lacquer, which is applied or sprayed to round the corners of the letters or symbols such as Braille to form a coating.

In this case, you can obtain a more rounded effect by sanding the corners beforehand and then spraying the paint.

(G) Effects of the Invention According to the manufacturing method described above, industrial production is possible, workability and product finish are good, and when used for Braille etc., the roundness makes the fingertips safe and tactile enough to achieve the intended purpose. can be achieved.

[Brief explanation of drawings]

Fig. 1 is a flowchart diagram of the manufacturing method according to the present invention, Fig. 2 is a sectional view of the substrate according to the invention, up to the photosensitive resin liquid layer lith film laminate, and Fig. 3 is a sectional view of the main part after spraying the paint. be. DESCRIPTION OF SYMBOLS 1...Substrate, 2...Photosensitive resin liquid layer, 3...Lith film, 4...Symbol. □2] 22] □□□Sono Nini] □□□2]] 1]]2] □]2] Figure 1□ - Plan 3 Figure

Claims (1)

[Claims] (1) A photosensitive resin liquid is poured onto the surface of the substrate to a certain thickness, a lithium film is laminated on top of this, and symbols such as letters and patterns are drawn by exposing to ultraviolet rays from above. A method for manufacturing a sign board, which at least coats the surface of the symbol and sprays paint to round the corners of the symbol to form a coating.