Title:
PREPARATION METHOD FOR POLYLACTIC ACID PLANT DYE COLOR MASTER BATCH
Document Type and Number:
WIPO Patent Application WO/2023/020338
Kind Code:
A1
Abstract:
Disclosed in the present invention is a preparation method for a polylactic acid plant dye color master batch. The method comprises: using a plant dye as a coloring agent, and first, dyeing a low-molecular-weight polylactic acid by using the coloring property of the plant dye for the low-molecular-weight polylactic acid, so as to obtain a colored low-molecular-weight polylactic acid; and then performing melt-blending on the colored low-molecular-weight polylactic acid, a polylactic acid carrier, and a dispersing agent so as to improve the compatibility of the plant dye and the polylactic acid carrier. The obtained plant dye color master batch is deep in color and good in color uniformity, a fabric obtained after using the plant dye color master batch for spinning is good in color fastness to hot pressing, and the problems of poor stability and non-uniform dispersion when the plant dye is directly used are avoided.
Inventors:
JI JUNLING (CN)
PENG YONGGANG (CN)
WANG YUAN (CN)
LIU LI (CN)
TAN JUNJIE (CN)
ZHOU JIALIANG (CN)
PENG YONGGANG (CN)
WANG YUAN (CN)
LIU LI (CN)
TAN JUNJIE (CN)
ZHOU JIALIANG (CN)
Application Number:
PCT/CN2022/111251
Publication Date:
February 23, 2023
Filing Date:
August 09, 2022
Export Citation:
Assignee:
JIANGSU GEM ADVANCED FIBER MATERIALS RES INSTITUTE CO LTD (CN)
International Classes:
C08J3/22; C08K9/12; C08L67/04; D01F1/06
Domestic Patent References:
| WO2009080458A1 | 2009-07-02 |
Foreign References:
| CN113637189A | 2021-11-12 | |||
| CN112195534A | 2021-01-08 | |||
| CN112981634A | 2021-06-18 | |||
| CN111909494A | 2020-11-10 |
Attorney, Agent or Firm:
YUV (NANJING) INTELLECTUAL PROPERTY FIRM (SPECIAL GP) (CN)
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