Aqueous compound anti-counterfeit paint for paper as well as preparation method and application thereof

Abstract

The invention relates to an aqueous compound anti-counterfeit paint for paper as well as a preparation method and application thereof, particularly an aqueous paint which is dedicated for paper coating and has a compound anti-counterfeit function. The paint is prepared from the following components in parts by mass: 15-20 parts of capsule type reversible thermochromic powder, 15-20 parts of capsule type reversible sunshine thermochromic powder, 0.5-2 parts of liquid UV fluorescer, 10-15 parts of infrared fluorescent powder, 1-5 parts of metal inorganic salt, 5-8 parts of starch glue and 30-53.5 parts of water. The paint can be used for coating paper in a full-width mode or blotting patterns and characters on a flexographic plate, and various schemes can be selected, thus the compound anti-counterfeit paint has multiple combinations, can be coded, can have the scheme changed regularly and has a favorable anti-counterfeit effect.

Description

technical field [0001] The invention relates to a coating, a preparation method and its application, in particular to a water-based coating which is specially used for paper coating and has composite anti-counterfeiting capabilities. Background technique [0002] Anti-counterfeiting bills are completed in three stages: base paper manufacturing, coating processing, and printing. If there are better anti-counterfeiting technologies in the three stages to form a composite anti-counterfeiting effect, the anti-counterfeiting effect will be the best, because counterfeiters must gather talents from various fields, master multiple technologies, and possess multiple equipment. In this way, the actions of counterfeiting are increased and it is easy to be exposed; the cost of counterfeiting has risen sharply, and it is even unprofitable. [0003] At present, there are only watermark and security thread technologies in the papermaking process. The former has produced counterfeit ticke...

AI Technical Summary

Problems solved by technology

In this way, the actions of counterfeiting will increase and it will be easy to be exposed; the cost of counterfeiting will increase significantly, and it will even be unprofitable

[0003] At present, there are only watermark and security thread technologies in the papermaking process. The former has produced counterfeit tickets with a high degree of simulation, and the latter is very expensive and difficult to be practical. In the printing stage, various optical and temperature-changing fluorescent inks are available everywhere. , there are so many printing factories that the printing anti-counterfeiting effect is poor; in the pre-press coating processing stage, there is no high-tech anti-counterfeiting coating