Friction color changing infrared hidden anti-fake ink
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA BANKNOTE PRINTING & MINTING
- Publication Date
- 2004-09-29
- Estimated Expiration
- Not applicable Β· inactive patent
Abstract
Description
technical field
[0001] The invention relates to an anti-counterfeit ink used for printed matter, in particular to a frictional discoloration infrared invisible anti-counterfeit ink. Background technique
[0002] At present, ink with a single anti-counterfeiting function can no longer meet the requirements of modern anti-counterfeiting. If multiple anti-counterfeiting is required, multiple printings are required, and the production cost is high; the anti-counterfeiting feature is not obvious, or it is easy to imitate, or it is not easy for the public to identify. Contents of the invention
[0003] The invention solves the technical problem of single anti-counterfeiting effect of the ink in the background technology.
[0004] Technical solution of the present invention is:
[0005] A tribochromatic infrared invisible anti-counterfeiting ink, including pigments, linking materials, fillers and additives, the special feature is: the pigment is a pigment with frictional reactio...