Color veiled-image anti-fake paper and its making process

Abstract

The present invention is one kind of color veiled-image anti-fake paper and its making process. The anti-fake paper is developed based on available carbon-free duplication paper and pressure-sensitive paper. Two or more kinds of colorless dye microcapsule to form pattern of different colors are painted to paper base via form overlay printing technological process. The seal pattern and cipher are also hidden in the color changing pattern to raise the anti-fake capacity. The present invention may be used widely in the middle coupon of various bills, anti-fake document and other special paper.

Description

technical field [0001] The invention belongs to the anti-counterfeiting technology, and is particularly suitable for the anti-counterfeiting application of bills and official documents. Background technique [0002] Since the promotion of the application of carbonless copy paper, it has indeed created a great obstacle for ordinary counterfeiters. The users combined the modern latent image anti-counterfeiting scheme to perform latent image processing on the paper base of carbonless copy paper to make the anti-counterfeiting function has been further strengthened. And it is still very convenient to apply, but with the promotion of application and the disclosure of carbonless copying paper technology, especially the color microcapsule coating technology containing leuco dyes has gradually been mastered by a wider range of people, making carbonless copying paper bills, and even preventing manufacturing It is not too difficult to produce a latent image watermark. For lawbreaker...

AI Technical Summary

Problems solved by technology

And it is still very convenient to apply, but with the promotion of application and the disclosure of carbonless copying paper technology, especially the color microcapsule coating technology containing leuco dyes has gradually been mastered by a wider range of people, making carbonless copying paper bills, and even preventing manufacturing It is not too difficult to produce a latent image watermark

For lawbreakers, especially those who have mastered the above basic technologies, the fidelity of anti-forging bills is indeed difficult for people to identify. How to further improve the anti-counterfeiting function has become an urgent problem for those skilled in the art.