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1. (WO2018014362) OPTICAL ANTI-COUNTERFEITING MARK BASED ON FIBROIN AND PREPARATION METHOD THEREFOR

Pub. No.:    WO/2018/014362    International Application No.:    PCT/CN2016/091537
Publication Date: Fri Jan 26 00:59:59 CET 2018 International Filing Date: Tue Jul 26 01:59:59 CEST 2016
IPC: B42D 25/30
B41M 3/14
Applicants: NANTONG TEXTILE AND SILK INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
南通纺织丝绸产业技术研究院
Inventors: ZHANG, Keqin
张克勤
LI, Qingsong
李青松
PENG, Yu
彭瑜
QI, Ning
祁宁
ZHANG, Xiaohua
张骁骅
Title: OPTICAL ANTI-COUNTERFEITING MARK BASED ON FIBROIN AND PREPARATION METHOD THEREFOR
Abstract:
Disclosed is an optical anti-counterfeiting mark based on fibroin, comprising a fibroin film layer and a gold film layer located on the fibroin film layer, wherein the area of the gold film layer is smaller than that of the fibroin film layer. A method for preparing the optical anti-counterfeiting mark pattern based on fibroin, comprising the following steps: a fibroin water solution is prepared; a base material is coated with the fibroin water solution to obtain a fibroin film; and a layer of a gold film is sputtered onto the fibroin film by using a mask plate to obtain the optical anti-counterfeiting mark pattern based on fibroin. By sputtering one layer of a thin gold (Au) film on the surface of the fibroin film, the anti-counterfeiting mark pattern appears under high humidity, the preparation is simple, and the manufacturing cost of the optical anti-counterfeiting mark can be markedly reduced.