Title:
PREPARATION METHOD FOR COLLAGEN FIBER, COLLAGEN FIBER, AND USE
Document Type and Number:
WIPO Patent Application WO/2023/138166
Kind Code:
A1
Abstract:
A preparation method for a collagen fiber, a collagen fiber, and a use. The method comprise the following steps: (1) spinning stock solution preparation: soaking a collagen material in a dissolving solution having a pH value of 3.5 to 5.5 for dissolution, and adjusting the pH value to 9.9 to 12.5, thereby forming a spinning stock solution; and (2) nascent fiber preparation: enabling the spinning stock solution to enter a coagulation bath having a pH value of 4.4 to 6.8 for coagulation and spinning, thereby forming nascent fibers. By means of multiple times of pH value adjustment, a collagen salting-out environment is formed, and the collagen fiber having spinnability is prepared by means of wet spinning.
Inventors:
QI YUFENG (CN)
HE WENGUANG (CN)
ZHANG HUAICANG (CN)
HE WENGUANG (CN)
ZHANG HUAICANG (CN)
Application Number:
PCT/CN2022/130397
Publication Date:
July 27, 2023
Filing Date:
November 07, 2022
Export Citation:
Assignee:
ZHEJIANG HEURISTIC NEW MATERIAL TECH LIMITED LIABILITY COMPANY (CN)
International Classes:
D01F4/00
Foreign References:
| CN114182381A | 2022-03-15 | |||
| CN104144715A | 2014-11-12 | |||
| CN109680350A | 2019-04-26 | |||
| CN108977912A | 2018-12-11 | |||
| US4295894A | 1981-10-20 | |||
| JP2015200055A | 2015-11-12 | |||
| CN107190341A | 2017-09-22 | |||
| GB201463200A |
Other References:
no. 9001-75-6
Attorney, Agent or Firm:
BEIJING WEIZHENG PATENT AGENCY CO., LTD. et al. (CN)
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