Local gilding technology for commemorative coin (badge)

Abstract

The invention relates to a technology. The technology comprises the following steps: making a negative electronic manuscript Fiering sheet with a refined gild pattern, printing down it, modulating a printing material, carrying out color painting, coating the printing material on other parts which are not gilded, naturally air-drying the painting material, gilding, carrying out electrolytic oil removal to remove the printing material, and drying. The smallest precision of the pattern obtained through the refined pattern local gilding technology can reach 0.10mm, so local refined pattern gild on the mirror surface and the sand surface of a commemorative coin (badge) can be realized, and simultaneously the local refined pattern gild on the plane and the embossment of the commemorative coin (badge) can also be realized. The refined pattern local gild technology has the advantages of good stability and repeatability, and good reliability, and is adapted to large production requirements.

Description

technical field [0001] The invention relates to the technical field of processing commemorative coins or chapters, in particular to a local gold plating process for realizing very fine patterns on the surface of commemorative coins (chapters). Background technique [0002] In the current local gold plating process for commemorative coins (chapters), manual drawing is still the main method for the protection of non-gold-plated upper printing materials. That is to say, after the worker dips in the dry corrosion-resistant printing material with tools such as brushes, the printing material is applied to the non-gold-plated pattern of the commemorative coin (chapter), leaving the pattern to be gold-plated, and then partially gold-plated. When printing materials, due to the manual operation, the outline of the pattern will be rough and uneven, and it is impossible to outline the outline of some very fine patterns, resulting in only the surface of the commemorative coin (chapter). ...

AI Technical Summary

Problems solved by technology

When printing materials, due to the manual operation, the outline of the pattern will be rough and uneven, and it is impossible to outline the outline of some very fine patterns, resulting in only the surface of the commemorative coin (chapter). Partial patterns are gold-plated as a whole, and the contours of the gold-plated patterns are not neat, and there are missing or over-plating phenomena, which limits the development of very fine partial gold-plated commemorative coins (chapters)