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Technique of applying temperature-sensing discolored ink in noble metal coin (badge)

A thermochromic ink and precious metal technology, applied in the field of coin manufacturing, can solve the problems of not being able to directly print metal products, not involving the application of thermochromic ink, etc., to increase anti-counterfeiting performance, enrich artistic expressions, and improve ornamental and collection. effect of value

Active Publication Date: 2009-03-11
CHINA BANKNOTE PRINTING & MINTING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the existing color printing process can only be applied to printing anti-counterfeiting trademarks or anti-counterfeiting marks, there are certain limitations, and it cannot be directly printed on metal products
After searching domestic and foreign patent databases, the disclosed domestic and foreign patents all have technology proposals involving temperature-sensitive or heat-sensitive color-changing inks. Among them, most of the Chinese patents involve the preparation technology of temperature-sensitive inks and their trademarks. , product packaging, tickets and other anti-counterfeiting printing application processes, but these related patents do not involve the application of thermochromic inks in metal coin manufacturing processes

Method used

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  • Technique of applying temperature-sensing discolored ink in noble metal coin (badge)

Examples

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Effect test

Embodiment 1

[0020] See attached figure 1 , the present invention carries out overlay color printing to the embossed precious metal coin (chapter) base cake with temperature-sensitive discoloration ink and metal ink, vacuum plastic seals after secondary color printing, solidification, specifically carries out according to the following steps:

[0021] 1. Making film

[0022] (1) Determine the anti-counterfeit printing and non-anti-counterfeiting printing parts according to the specific situation, and make different films according to different printing methods;

[0023] (2) According to the characteristics of the pad printing process, the adjustment of the different tone curves and the precise alignment of the embossed position of the blank cake are carried out within the range of 60% of the dots for the electronic files that need to be color printed, so as to meet the requirements of the color printing process;

[0024] (3) Carry out laser color separation processing on the adjusted elec...

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Abstract

The invention disclose a process used for the application of temperature-sensing color-changing ink on noble metal coin (seal); the process is characterized in that temperature-sensing color-changing ink as well as the metal ink is disposed on an imprinted noble metal coin (seal) blank by superposed color-printing, secondarily color-printed, solidified and plastic-sealed in vacuum, thus realizing the color changes of patterns under different temperatures; the detailed process comprises the steps as follows: preparing film, preparing photosensitive plate, matching ink, secondary color-printing, solidifying and plastic-sealing in vacuum. The process further enlarges the application field of the temperature-sensing color-changing ink on anti-counterfeiting products, especially on the manufacture process of the metal coin; compared with the prior art, the process increases the anti-counterfeiting performance of the product, enriches the artistic expression of the coin (seal) and improves the ornament and collection value of the products.

Description

technical field [0001] The invention relates to the technical field of coin manufacturing, in particular to a process for applying temperature-sensitive color-changing ink on precious metal coins (chapters). Background technique [0002] In order to improve the anti-counterfeiting performance of products, temperature-sensitive color-changing inks are used to print on trademarks, product packaging, tickets and other products or anti-counterfeiting marks to increase the anti-counterfeiting performance of products. The structure changes, it can change from "colored-colorless" or "colorless-colored" state, so as to realize the color change. The current thermochromic ink printing process uses thermochromic ink and existing color printing technology to overprint thermochromic ink on products that need anti-counterfeiting, so as to realize the color change of patterns at different temperatures to achieve an anti-counterfeiting effect. Since the existing color printing process can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A44C21/00A44C3/00B41M3/14B41M1/12B41M1/14B41M7/00G03F7/12
Inventor 张勃杨怡春顾海勇
Owner CHINA BANKNOTE PRINTING & MINTING
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