Title:
FULLY DEGRADABLE COMPOSITE FILAMENT, AND MANUFACTURING METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/138707
Kind Code:
A1
Abstract:
A fully degradable composite filament, and a manufacturing method therefor and a use thereof. The fully degradable composite filament comprises an outer surface layer (1) and an inner core layer (2), wherein the outer surface layer (1) wraps the surface of the inner core layer (2), and the inner core layer (2) has a hollow tube structure. The inner core (2) layer is a single-layer fiber made of a high-melting-point polylactic acid fiber material; the outer surface layer (2) is a single-layer fiber made of a low-melting-point polylactic acid fiber material. A composite filament having a complete degradation function is achieved by using the degradable characteristic of polylactic acid.
Inventors:
QIU XIANJUN (CN)
Application Number:
PCT/CN2023/081788
Publication Date:
July 27, 2023
Filing Date:
March 16, 2023
Export Citation:
Assignee:
GUANGDONG XINQIU NEW MATERIAL TECH CO LTD (CN)
International Classes:
D01D5/34; B43K8/02; D01D5/24; D01F8/14
Foreign References:
| CN114395810A | 2022-04-26 | |||
| CN114182391A | 2022-03-15 | |||
| JP2003342836A | 2003-12-03 | |||
| CN106232882A | 2016-12-14 | |||
| CN109853081A | 2019-06-07 | |||
| CN101805941A | 2010-08-18 | |||
| CN109629080A | 2019-04-16 | |||
| CN108468102A | 2018-08-31 | |||
| CN106702510A | 2017-05-24 |
Attorney, Agent or Firm:
BEIJING ZHONGRUIZHIHENG INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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