Composite false-proof safety thread and its production method, false-proof paper applying the safety thread

Abstract

The invention discloses a composite antifalsification safety line with manufature method and application method on antifalsification paper. Wherein, the manufacture method comprises: coating thermalsol on single surface bonded by thin film and amorphous alloy wire, locating the amorphous alloy wire between thin film laye, taking thermal treatment; coating thermalsol on double surfaces on outside of thin film, drying, and forming antifalsification film; cutting the said film into antifalsification safety line with required width. This invention presents firstly and makes good use of special electromagnetic property of amorphous alloy wire, realizes in deed the three-line antifalsification for back note paper fit to look over by eyes, identify by machine and analysis by specialist.

Description

technical field [0001] The invention relates to paper used for making banknotes, securities and other articles, more specifically, to a composite anti-counterfeit security thread, its manufacturing method and the anti-counterfeit paper with the security thread. Background technique [0002] Amorphous alloys have only gradually developed since scientists invented the rapid quenching process. Due to their unique structure, efficient preparation process, and excellent material properties, amorphous alloys have become a special focus of material scientists. theme. In the past forty years, with the continuous progress in the basic research, preparation process and application product development of amorphous materials, various amorphous materials have gradually moved towards practical application. From the perspective of magnetic properties, amorphous fibers can be divided into three categories, namely Fe (iron)-based, Co (cobalt)-based and Fe-Co (iron-cobalt)-based amorphous al...

AI Technical Summary

Problems solved by technology

Taking a comprehensive view of the above-mentioned existing anti-counterfeiting technologies at home and abroad, all can only realize second-line anti-counterfeiting, that is, first-line anti-counterfeiting (visible to the naked eye), second-line anti-counterfeiting (specific electromagnetic characteristics can be machine-readable), and third-line anti-counterfeiting (modern instrument analysis). Even if the machine-readable magnetic second-line anti-counterfeiting technology of magnetic materials is adopted, its machine-readable electromagnetic characteristics are not stable.

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