Title:
OPTICAL ANTI-COUNTERFEITING MARK BASED ON FIBROIN AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/014362
Kind Code:
A1
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.
Inventors:
ZHANG KEQIN (CN)
LI QINGSONG (CN)
PENG YU (CN)
QI NING (CN)
ZHANG XIAOHUA (CN)
LI QINGSONG (CN)
PENG YU (CN)
QI NING (CN)
ZHANG XIAOHUA (CN)
Application Number:
PCT/CN2016/091537
Publication Date:
January 25, 2018
Filing Date:
July 25, 2016
Export Citation:
Assignee:
NANTONG TEXTILE AND SILK INDUSTRIAL TECH RESEARCH INSTITUTE (CN)
International Classes:
B42D25/30; B41M3/14
Domestic Patent References:
WO2015114649A1 | 2015-08-06 |
Foreign References:
CN2497379Y | 2002-06-26 | |||
CN104672733A | 2015-06-03 | |||
CN204955592U | 2016-01-13 | |||
CN104464505A | 2015-03-25 |
Other References:
DIAO, YING YING ET AL.: "Multiple Structural Coloring of Silk-Fibroin Photonic Crystals and Humidity-Responsive Color Sensing", ADVANCED FUNCTIONAL MATERIALS, vol. 23, no. 43, 20 November 2013 (2013-11-20), pages 5373 - 5380, XP055602411, DOI: 10.1002/adfm.201203672
Attorney, Agent or Firm:
CENTRAL SOUTH WELL INTELLECTUAL PROPERTY OFFICE (CN)
Download PDF: