Title:
TECHNOLOGICAL METHOD FOR REGENERATING FLAME RETARDANT POLYESTER FIBER BY RECYCLING POLYESTER FIBER
Document Type and Number:
WIPO Patent Application WO/2022/047843
Kind Code:
A1
Abstract:
Disclosed in the present application is a technological method for regenerating a flame retardant polyester fiber by recycling a polyester fiber, comprising: performing thorough cleaning on a waste fabric, then drying same so as to complete a cleaning work of a waste polyester fiber fabric; cutting the cleaned fabric, then crushing the polyester fiber fabric into short fiber threads; immersing, by using an organic solvent, the short fiber threads obtained by crushing, dissolving short cotton and hemp fiber threads mixed inside the short fiber threads, and flushing and drying separated short polyester fiber threads again; performing melt spinning on the cleaned and dried short polyester fiber threads, and performing air-blowing forming on same after spinning; and spaying a flame retardant agent on formed polyester fiber filaments, and drying same after spraying the flame retardant agent, such that the flame retardant agent adheres to the surface of the polyester fiber filaments. The present application provides the technological method for regenerating a flame retardant polyester fiber by recycling a polyester fiber.
Inventors:
CHENG XIANSHENG (CN)
Application Number:
PCT/CN2020/116691
Publication Date:
March 10, 2022
Filing Date:
September 22, 2020
Export Citation:
Assignee:
SUZHOU XIANHUI NEW TEXTILE TECH CO LTD (CN)
International Classes:
D02G3/44; D01D1/00; D01D1/04; D01D5/08; D01G11/04; D02G3/02
Foreign References:
| CN102517676A | 2012-06-27 | |||
| CN102199310A | 2011-09-28 | |||
| CN101265660A | 2008-09-17 | |||
| CN106674588A | 2017-05-17 | |||
| CN108842448A | 2018-11-20 | |||
| CN103668534A | 2014-03-26 | |||
| CN105111063A | 2015-12-02 | |||
| CN104452310A | 2015-03-25 | |||
| JP2002173828A | 2002-06-21 |
Attorney, Agent or Firm:
BEIJING IP PATENT AGENCY CO., LTD (CN)
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