A kind of anti-counterfeiting carbonless copy paper with security thread and its production method

Abstract

The invention provides anti-fake carbonless paper with guard wires and a production method of the anti-fake carbonless paper. Anti-fake pattern guard wires are embedded in raw paper, and a bonding type coating layer is coated on the surface of the raw paper of carbonless paper, so as to strengthen the firmness of the combination of anti-fake particles and the raw paper of carbonless paper. The production method provided by the invention comprises the following steps: forming anti-fake patterns on the surface of the raw paper of the carbonless paper; exerting pressure on the raw paper of the carbonless paper with anti-fake pattern by a tightly pressing device to form embedded anti-fake patterns; then, coating CB and / or CF coatings. According to the invention, the anti-fake materials are embedded into the inside of the raw paper to form guard wires, and CB / CF coatings are coated at the outer part of the raw paper, so as to enable the anti-fake carbonless paper with guard wires and production method of anti-fake carbonless paper and the carbonless paper to be bonded firmly; the anti-fake guard wires are embedded into the raw paper, so that the two surfaces of paper have anti-fake characteristics, and the identification is not affected in case of an external coating; no special requirements are required for the raw paper, and the fake prevention for paper of low gram weight can be realized.

Description

technical field [0001] The invention relates to an anti-counterfeit carbonless copy paper with a safety thread and a production method. The invention belongs to the technical field of carbonless copy paper processing. Background technique [0002] With the wide application of carbonless copying paper in the bill industry, the anti-counterfeiting requirements for carbonless copying paper are also getting higher and higher. At present, the common anti-counterfeiting methods mainly include: making watermarks and security lines during the papermaking process. The process is complicated and can only be realized when the speed of the paper machine is low. There are also some anti-counterfeiting materials such as layered dyeing and inlaying some anti-counterfeiting sheets and metal wires in the paper. These methods are suitable for high-quantity paper products, but have poor bonding fastness when used in low-quantity carbonless copy paper. The problem. [0003] The invention pat...

AI Technical Summary

Problems solved by technology

At present, the common anti-counterfeiting methods mainly include: making watermarks and security lines in the papermaking process, the process is complicated, and it can only be realized when the speed of the paper machine is low.

There are also some anti-counterfeiting materials such as layered dyeing and inlaying some anti-counterfeiting sheets and metal wires in the paper. These methods are suitable for high-quantity paper products, but have poor bonding fastness when used in low-quantity carbonless copy paper. The problem

[0003] The invention patent with the application number 201110458143 "A Method for Making Anti-counterfeit Paper with Multiple Anti-counterfeit Patterns" mentioned a kind of anti-counterfeit paper with multiple anti-counterfeit patterns prepared in the coating process, and the anti-counterfeit features are only visible on the coated surface , can not achieve the effect of both positive and negative, easy to be imitated by printing

And the invention patent with application number 201110042655.1 "Carbonless Copy Paper with Security Thread and Its Manufacturing Method", in each base paper, an anti-counterfeit security thread is embedded between the upper pulp fiber of the security thread and the lower pulp fiber of the security thread. The embedding method is a partially visible window safety line, the process is complex and technically demanding, and it is only suitable for high-weight paper