	US 12,410,541 B2
	Chitin-containing polyester filament and preparation method thereof
Xiaohua Huang, Qingdao (CN); Yanming Liu, Qingdao (CN); Xiaoqian Huang, Qingdao (CN); Yu Liu, Qingdao (CN); Jie Liu, Qingdao (CN); and Li Zhen, Qingdao (CN)
Assigned to BYHERB FUTURE HEALTH TECHNOLOGY (QINGDAO) CO., LTD., Qingdao (CN)
Filed by Bestee Material (Qingdao) Co., Ltd., Qingdao (CN)
Filed on Feb. 10, 2022, as Appl. No. 17/668,547.
Application 17/668,547 is a continuation of application No. PCT/CN2020/097915, filed on Jun. 24, 2020.
Claims priority of application No. 202010139156.3 (CN), filed on Mar. 3, 2020.
Prior Publication US 2022/0162774 A1, May 26, 2022
Int. Cl. D01F 1/10 (2006.01); C08B 37/08 (2006.01); D01D 1/02 (2006.01); D01D 5/06 (2006.01); D01F 6/92 (2006.01)

CPC D01F 1/103 (2013.01) [C08B 37/003 (2013.01); D01D 1/02 (2013.01); D01D 5/06 (2013.01); D01F 6/92 (2013.01)]

16 Claims

1. A preparation method of a chitin-containing polyester filament, comprising:

preparing a modified chitin;

preparing a chitin-containing functional modifier based on the modified chitin;

preparing polyester (PET) functional particles based on the chitin-containing functional modifier and PET pellets;

preparing a mixed spinning solution based on the polyester functional particles, wherein a weight percentage of the polyester functional particles is in a range of approximately 2%-4% based on a total weight of the mixed spinning solution; and

performing a spinning molding of the mixed spinning solution to form the chitin-containing polyester filament.