ANTI-COUNTERFEITING LYOCELL FIBER, PREPARATION METHOD THEREFOR, AND ANTI-COUNTERFEITING METHOD

WIPO Patent Application WO/2022/100051

A1

The present invention relates to a preparation method for an anti-counterfeiting lyocell fiber, comprising the following steps: dissolving at least one amino acid metal chelate and cellulose pulp in an aqueous solution of a cellosolve to obtain a spinning solution, and then carrying out wet spinning by using the spinning solution to obtain the anti-counterfeiting lyocell fiber. The amino acid metal chelate accounts for 0.2%-0.6% of the total mass of the anti-counterfeiting lyocell fiber. The anti-counterfeiting lyocell fiber of the present invention is encrypted by utilizing the amino acid metal chelate, the process flow is simple and convenient, and the prepared product can be provided with one or two passwords according to the ratio of each metal ion and each amino acid contained in the product, so that the product prepared from the fiber has memory tracking properties and recognition functions and high anti-counterfeiting strength.

LIU YUQING (CN)
HE YU (CN)
WAN CHENGWEI (CN)
CHEN KAIYI (CN)
WANG ZHONG (CN)
WANG GUOHE (CN)
PAN ZHIJUAN (CN)

PCT/CN2021/094785

May 19, 2022

May 20, 2021

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UNIV SOOCHOW (CN)

D01F2/10; D01D5/06; D02G3/44; D03D15/00; D04B1/14; D04B21/00

CN112609257A	2021-04-06
CN112538664A	2021-03-23
CN112501706A	2021-03-16
CN112501705A	2021-03-16
CN110042490A	2019-07-23
CN101349689A	2009-01-21
CN1094408A	1994-11-02
CN101307511A	2008-11-19
CN101942707A	2011-01-12
CN109070130A	2018-12-21
US20150377841A1	2015-12-31

CENTRAL SOUTH WELL INTELLECTUAL PROPERTY OFFICE (CN)

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