The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 24, 2025
Filed:
Jul. 04, 2023
Xinfengming Group Co., Ltd., Jiaxing, CN;
Donghua University, Shanghai, CN;
Shanghai Huiyi New Materials Technology Co., Ltd., Shanghai, CN;
New Fengming Group Huzhou Zhongshi Technology Co., Ltd., Huzhou, CN;
Huzhou Zhongyue Chemical Fiber Co., Ltd., Huzhou, CN;
Shaoxing Huiqun New Material Technology Co., Ltd., Shaoxing, CN;
Zhejiang Ruishengke New Materials Research Institute Co., Ltd., Jiaxing, CN;
Yaozhong Zhuang, Jiaxing, CN;
Bin Sun, Shanghai, CN;
Weidong Zhan, Shanghai, CN;
Heng Zhang, Shanghai, CN;
Xingqi Hu, Huzhou, CN;
Hong Shen, Huzhou, CN;
Li Cui, Jiaxing, CN;
Hailong Yu, Shanghai, CN;
XINFENGMING GROUP CO., LTD., Jiaxing, CN;
DONGHUA UNIVERSITY, Shanghai, CN;
SHANGHAI HUIYI NEW MATERIALS TECHNOLOGY CO., LTD., Shanghai, CN;
NEW FENGMING GROUP HUZHOU ZHONGSHI TECHNOLOGY CO., LTD., Huzhou, CN;
HUZHOU ZHONGYUE CHEMICAL FIBER CO., LTD., Huzhou, CN;
SHAOXING HUIQUN NEW MATERIAL TECHNOLOGY CO., LTD., Shaoxing, CN;
ZHEJIANG RUISHENGKE NEW MATERIALS RESEARCH INSTITUTE CO., LTD., Jiaxing, CN;
Abstract
A method of preparing an antibacterial anti-yellowing ZnO antimony-free polyester fiber is provided. In direct spinning of antimony-free polyester melt, an anti-yellowing nano antibacterial agent is introduced into a polymerization process of antimony-free polyester to obtain the antibacterial anti-yellowing ZnO antimony-free polyester fiber; the anti-yellowing nano antibacterial agent is a surface-deposited or coated nano ZnO of a phosphate ester small molecule having a function of resisting thermal oxidative degradation, the phosphate ester small molecule is bound to the nano ZnO by van der Waals force, hydrogen bonding or covalent bonding, and the phosphate ester small molecule is a phosphate ester molecule with a molecular weight of less than 500 Da; the content of the nano ZnO in the antibacterial anti-yellowing ZnO antimony-free polyester fiber is not lower than 1.2 wt %, and the yellowing index Yi value of the antibacterial anti-yellowing ZnO antimony-free polyester fiber is not higher than 16.1.