Anti-counterfeiting modal fiber, preparation method and anti-counterfeiting method

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United States of America Patent

PATENT NO 11946166
APP PUB NO 20220364271A1
SERIAL NO

17618317

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Abstract

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The invention relates to a method for preparing an anti-counterfeiting modal fiber, including: mixing a pulp stock solution with a cellulose catalyst, alkalizing, aging, sulfonating, and then dissolving the pulp stock solution in an alkaline solution to obtain a treatment solution; mixing the treatment solution with multiple amino acid-metal chelates, filtering, defoaming and ripening to obtain a spinning stock solution; and mixing the spinning stock solution with a spinning bath additive, and wet spinning, followed by drafting, defoaming, desulfurizing, water washing, and other post-treatments, to obtain an anti-counterfeiting modal fiber, wherein the amino acid metal-chelates account for 0.5%-1.5% by weight of the spinning stock solution. Amino acid-metal chelates are used to anti-counterfeit and encrypt the modal fibers, and the anti-counterfeiting and encrypting is involved in the spinning stock solution of modal fibers. The fiber source can be tracked and identified by detecting the species of metal elements and amino acids.

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Patent Owner(s)

Patent OwnerAddress
SOOCHOW UNIVERSITYNO 199 REN'AI ROAD SUZHOU INDUSTRIAL PARK SUZHOU JIANGSU 215123

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, Qin Suzhou, CN 228 2132
Li, Xingxing Suzhou, CN 15 31
Liu, Yuqing Suzhou, CN 48 68
Pan, Zhijuan Suzhou, CN 3 0
Wang, Guohe Suzhou, CN 11 13
Wang, Zhong Suzhou, CN 140 508
Zhang, Yeke Suzhou, CN 1 0

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