公开(公告)号：US20220364271A1

公开(公告)日：2022-11-17

申请号：US17618317

申请日：2021-05-20

Applicant: SOOCHOW UNIVERSITY

Inventor： Yuqing LIU ,  Qin LI ,  Xingxing LI ,  Yeke ZHANG ,  Zhong WANG ,  Guohe WANG ,  Zhijuan PAN

IPC: D01F2/08 ,  D01F1/10 ,  D01D1/02 ,  D01D5/06 ,  G07D7/02 ,  G07D7/06

Abstract: 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.

公开(公告)号：US20250026978A1

公开(公告)日：2025-01-23

申请号：US18282375

申请日：2022-03-15

Applicant: NANTONG TEXTILE & SILK IND TECH RES INST ,  SOOCHOW UNIVERSITY

Inventor： Yuqing LIU ,  Qin LI ,  Jian FANG

IPC: C09K9/02 ,  B82Y30/00 ,  C01B32/174 ,  D01D5/08 ,  D01D5/24 ,  D01D5/34 ,  D01F8/06 ,  D01F8/10 ,  D01F8/16 ,  D01F8/18 ,  D06M11/74 ,  D06M11/83 ,  D06M101/20 ,  D06M101/24 ,  D06M101/30

Abstract: A composite electrochromic material, a preparation method therefor and an application thereof, the material comprising a core layer, a skin layer having an electrochromic function, and a light-transmitting protective layer formed by a flexible polymer material, that are arranged in sequence. The material of the core layer comprises a fluid conductive mixture, which comprises liquid metal and carboxylated carbon nanotubes. The preparation method comprises: carrying out spinning by co-extrusion using a three-channel nozzle to form hollow double-layer fibers each having a skin layer and a protective layer as well as a cavity, injecting the conductive mixture into the cavity of the hollow double-layer fiber. The material has excellent deformation ability, stable and sensitive color changing function, and a controllable deformation degree. The material has a stable color changing function even in the case of severe defomation, good fatigue resistance, and is suitable for the preparation of intelligent textiles.