US 12,442,109 B2
Anti-counterfeiting composition for anti-counterfeiting chemical fiber and preparation method and use thereof
Yuqing Liu, Suzhou (CN); Chuanqi Xu, Suzhou (CN); Zhijuan Pan, Suzhou (CN); Guohe Wang, Suzhou (CN); and Lingyun Liu, Suzhou (CN)
Assigned to NANTONG TEXTILE & SILK IND TECH RES INST, Jiangsu (CN); and SOOCHOW UNIVERSITY, Jiangsu (CN)
Appl. No. 17/311,427
Filed by NANTONG TEXTILE & SILK IND TECH RES INST, Jiangsu (CN); and SOOCHOW UNIVERSITY, Jiangsu (CN)
PCT Filed Jun. 11, 2019, PCT No. PCT/CN2019/090670
§ 371(c)(1), (2) Date Jun. 7, 2021,
PCT Pub. No. WO2020/248116, PCT Pub. Date Dec. 17, 2020.
Prior Publication US 2022/0090301 A1, Mar. 24, 2022
Int. Cl. D01F 1/10 (2006.01); D01D 1/02 (2006.01); D01D 5/10 (2006.01); D01F 6/00 (2006.01)
CPC D01F 1/10 (2013.01) [D01D 1/02 (2013.01); D01D 5/10 (2013.01); D01F 6/00 (2013.01)] 7 Claims
 
1. An anti-counterfeiting fiber comprising an anti-counterfeiting composition dispersed in a fiber-forming polymer, wherein the anti-counterfeiting composition comprises:
a bio-derived oil;
an anti-counterfeiting tracer; and
a dispersant;
wherein the anti-counterfeiting tracer is composed of barium oxide, strontium oxide, aluminum oxide and zinc oxide dispersed in the bio-derived oil, and the barium oxide, the strontium oxide, the aluminum oxide, and the zinc oxide in the anti-counterfeiting composition is controlled to a fixed feeding mass ratio which determines an encrypted sequence, a measured mass ratio of the barium oxide, the strontium oxide, the aluminum oxide, and the zinc oxide obtained after the anti-counterfeiting fiber is dissolved is the same as the fixed feeding mass ratio or has a small difference value relative to the fixed feeding mass ratio due to experimental error or loss in preparation process;
wherein, in percent by mass, a sum of the barium element, the strontium element, the aluminum element, and the zinc element accounts for 5-50% of the anti-counterfeiting composition.