Security paper to which safety film is added through open hole and full window combined forming technology and manufacturing method

Abstract

The invention provides security paper to which a safety film is added through the open hole and full window combined forming technology and a manufacturing method and belongs to the field of security paper manufacturing. Firstly, a wet paper sheet with an open hole is made, then a wet paper sheet with a full window is made, meanwhile, the wet paper sheet with the open hole and the wet paper sheet with the full window are attached, the open hole and the full window are superposed together and located in the front face and the rear face of the paper respectively, the safety film is applied between the two wet paper sheets, and the safety film is compounded in the open hole and full window region; finally squeezing and drying are carried out to obtain security paper dry sheet paper in which the open hole and the full window are combined and to which the safety film is added. The security paper and the manufacturing method have the advantages that the open hole (window) and adding of the safety film are completed at a time in the papermaking process of a paper maker, the full window anti-counterfeiting technology is added and integrated with the former technology, the manufacturing difficulty is greatly increased, meanwhile, the counterfeiting difficulty is also increased, and the anti-counterfeiting performance of the paper is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of anti-counterfeiting paper for a rotary screen paper machine, and in particular relates to an anti-counterfeiting paper with a safety film added by a combination of opening and full window forming technology and a manufacturing method. Background technique [0002] [1] The original paper with openings (windows) is made of pulp through a paper machine to produce paper with holes. The paper with holes, when leaving the paper machine, is pasted with a layer of film at the opening (window), thereby forming a paper with openings (window). Although the paper of original perforation (window) has certain anti-counterfeiting technology, because its manufacturing process is simple, easy to manufacture, anti-counterfeiting is still relatively poor, is easier to fake. [0003] [2] The security line with windows has been used on the fifth set of RMB, but there is no mature technology for the paper of the security line...

AI Technical Summary

Problems solved by technology

Although the original perforated (window) paper has certain anti-counterfeiting technology, due to its simple manufacturing process and easy manufacture, the anti-counterfeiting is still relatively po

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