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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
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.
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Patent Agency Ranking
2.发明公开公开(公告)号：US20230232719A1
公开(公告)日：2023-07-20
申请号：US18013683
申请日：2021-06-25
Inventor： Yuqing LIU , Yuting WANG , Jing HU , Xin YANG , Ranran LI , Jian FANG
IPC: H10N30/08 , H10N30/057 , H10N30/50
CPC classification number: H10N30/08 , H10N30/057 , H10N30/506
Abstract: A preparation method tor a piezoelectric fiber is provided including a piezoelectric functional layer and an insulating layer coated on the piezoelectric functional layer. The piezoelectric functional layer includes a piezoelectric composite layer of a spiral winding structure, and the piezoelectric composite layer includes a first piezoelectric layer, a conductive layer and a second piezoelectric layer that are sequentially stacked. The preparation method piezoelectric composite layer in a direction perpendicular to the winding axis to form the piezoelectric functional layer, wherein turns of winding the piezoelectric composite layer are greater than 5, coating the piezoelectric functional layer with the insulating layer, and vacuum heating to consolidate, to prepare a preform rod.
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公开(公告)号：US20230211190A1
公开(公告)日：2023-07-06
申请号：US18008692
申请日：2021-06-08
Inventor： Yuqing LIU , Jing HU , Yuting WANG , Ranran LI , Xin YANG , Kaiyi CHEN
IPC: A62B23/02 , B32B5/02 , B32B5/26 , B01D39/20 , B01D39/16 , D01F1/10 , D01D1/04 , D04H1/4291 , D06M13/463 , B32B37/16 , D04H1/435 , D01F6/62 , D04H1/724 , D04H1/56
CPC classification number: A62B23/025 , B32B5/022 , B32B5/267 , B01D39/2034 , B01D39/2065 , B01D39/163 , D01F1/10 , D01D1/04 , D04H1/4291 , D06M13/463 , B32B37/16 , D04H1/435 , D01F6/62 , D04H1/724 , D04H1/56 , B32B2250/20 , B32B2260/021 , B32B2262/062 , B32B2262/0253 , B32B2262/0284 , B32B2264/1022 , B32B2264/302 , B32B2260/04 , B01D2239/10 , B01D2239/0618 , B01D2239/0627 , B01D2239/1241 , B32B2305/28 , D06M2200/00 , B32B2571/00 , D10B2505/04 , D06M2101/20
Abstract: An anti-propylene mask and method for preparation thereof is provided; the anti-propylene mask includes a fiber cloth contact layer, an antistatic non-woven fabric layer and a fullerene/nano titanium dioxide spunbond layer which are arranged in sequence; the fullerene/nano titanium dioxide spunbond layer is made by spun-bonding the modified resin material into a fiber web; the raw materials of modified resin materials include matrix resin, carboxylated fullerene derivatives, nano titanium dioxide, a lubricant, and a coupling agent; the modified resin material is prepared by following method: the carboxylated fullerene derivative is mixed and reacted with the nano titanium dioxide to prepare the carboxylated fullerene derivative-modified nano titanium dioxide, which is then blended and extruded with the remaining components in the raw material, and thus prepared. The mask can prevent propylene from entering the human body through the human respiratory organs and has a good anti-propylene effect.
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4.发明申请公开(公告)号：US20220411967A1
公开(公告)日：2022-12-29
申请号：US17615447
申请日：2021-05-20
Applicant: SOOCHOW UNIVERSITY
Inventor： Yuqing LIU , Yu HE , Chengwei WAN , Kaiyi CHEN , Zhong WANG , Guohe WANG , Zhijuan PAN
Abstract: The present invention provides a preparation method of an anti-counterfeiting lyocell fiber, including the following steps: dissolving at least one amino acid metal chelate and a cellulose pulp in an aqueous solution of a cellosolve to obtain a spinning solution, and then performing wet spinning using the spinning solution to obtain an anti-counterfeiting lyocell fiber, wherein the amino acid metal chelate account for 0.2% to 0.6% of the total mass of the anti-counterfeiting lyocell fiber. The anti-counterfeiting lyocell fiber of the present invention uses an amino acid metal chelate for encryption, and the process is simple. The prepared product can be provided with one or two passwords based on the ratio of metal ions and the amino acids, so that the product prepared from this fiber has the advantages of memory tracking properties, identification function and high anti-counterfeiting capability grade.
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5.发明申请公开(公告)号：US20250026978A1
公开(公告)日：2025-01-23
申请号：US18282375
申请日：2022-03-15
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.
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公开(公告)号：US20220090301A1
公开(公告)日：2022-03-24
申请号：US17311427
申请日：2019-06-11
Inventor： Yuqing LIU , Chuanqi Xu , Zhijuan Pan , Guohe Wang , Lingyun Liu
Abstract: Provided is an anti-counterfeiting composition for anti-counterfeiting fibers, including a carrier, an anti-counterfeiting tracer and a dispersant, wherein the anti-counterfeiting tracer is composed of barium oxide, strontium oxide, aluminum oxide and zinc oxide, and a barium element content, a strontium element content, an aluminum element content, and a zinc element content in the anti-counterfeiting composition is controlled to a fixed feeding mass ratio; in percent by mass, the sum of the barium element content, strontium element content, aluminum element content, and zinc content accounts for 5-50% of the anti-counterfeiting composition; the carrier is a matrix polymer or a bio-derived oil. The anti-counterfeiting composition of the present disclosure can give the anti-counterfeiting fiber advantages of memory tracking properties and identification functions, high anti-counterfeiting capability, and good anti-counterfeiting concealment.
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