Anti-counterfeiting paper product applied with anti-counterfeiting materials at certain positions and preparation method thereof

Abstract

The invention provides a preparation method of an anti-counterfeiting paper product applied with anti-counterfeiting materials at certain positions, and the preparation method comprises the steps of: mixing the anti-counterfeiting materials with a bonding agent and a medium to obtain the anti-counterfeiting material mixture; putting the anti-counterfeiting material mixture in an electrically controlled ejection device which is provided with an ejection pipe and an ejection needle and running a paper machine to apply the anti-counterfeiting material mixture to the preset page of the paper product through the ejection needle. The applying positions of the anti-counterfeiting material mixture are the wet parts or the adhesive-applied part. The page of the anti-counterfeiting paper product prepared by the process comprises granular anti-counterfeiting materials, the anti-counterfeiting materials are firmly bonded with the paper product and can be applied in a positioning way, thereby avoiding the limitation of the full version application way. The invention is particularly applicable to banknote paper, securities, notes and other anti-counterfeiting paper products.

Description

Anti-counterfeit paper product for positioning anti-counterfeiting material and preparation method thereof technical field The invention belongs to the field of pulping and papermaking, and provides an anti-counterfeiting paper product and a preparation process thereof, which are mainly used in the process of releasing anti-counterfeiting materials in the production of special paper. Background technique The anti-counterfeiting methods of paper-based products can be roughly divided into physical and chemical methods in terms of identification principles, such as watermarks in banknotes, anti-counterfeiting threads, anti-counterfeiting fibers that can be seen directly by the naked eye, laser holography of credit cards, invisible barcodes of commodities, etc. It belongs to the physical anti-counterfeiting method, and the chemical anti-counterfeiting method is to reveal the product characteristics by checking the chemical reaction of the anti-counterfeiting components under ce...

AI Technical Summary

Problems solved by technology

In recent years, with the development of high technology, more convenient anti-counterfeiting materials have been applied in paper identification technology, but limited by the base material, anti-counterfeiting materials are poorly combined with paper and easily fall off from the paper; while printing The printing method of printing ink or spraying other ink-based anti-counterfeiting materials on the surface of paper products has many limitations and cannot be easily positioned. This affects the anti-counterfeiting function and anti-counterfeiting effect of special paper products such as banknote paper to a certain extent, and affects the product quality. quality