Title:
USE OF NEEM BARK PIGMENT IN PREPARATION FOR MULTIFUNCTIONAL WOOL FABRIC
Document Type and Number:
WIPO Patent Application WO/2022/105916
Kind Code:
A1
Abstract:
Use of neem bark pigment in preparation for multifunctional wool fabric, relating to the technical field of natural waste utilization and textile dyeing and finishing. The method for extracting neem bark pigment comprises the following steps: adding neem bark powder into a mixed solvent of water and ethanol and mixing uniformly using a high-speed wall-breaking machine, and extracting at a blade rotation speed of 20000-42000 r/min; the extraction pH being 9-11; the extraction temperature being 45-75°C, and the extraction time being 10-60 min; and after the extraction, performing centrifugation, suction filtering, concentration and drying to obtain neem bark pigment. Using a high-speed wall-breaking method can increase the yield of crude neem bark pigment to 18.77%; the wool fabric which is dyed with neem bark pigment prepared using the described method has a dark colour; the anti-moth effect is improved compared with that of an undyed fabric, and the weight loss is reduced by 61.5%; and the anti-ultraviolet performance is good, the UPF value is increased by 24 times compared with that of the undyed wool fabric, and fluorescent light of different colours can be exhibited under excitation light of different wavelengths.
Inventors:
HOU XIULIANG (CN)
LU YETING (CN)
LI JIANHONG (CN)
PENG YAQIAN (CN)
ZHANG HAOYU (CN)
LU YETING (CN)
LI JIANHONG (CN)
PENG YAQIAN (CN)
ZHANG HAOYU (CN)
Application Number:
PCT/CN2021/132100
Publication Date:
May 27, 2022
Filing Date:
November 22, 2021
Export Citation:
Assignee:
UNIV JIANGNAN (CN)
DONGGUAN DERONG CASHMERE TEXTILES LTD COMPANY (CN)
DONGGUAN DERONG CASHMERE TEXTILES LTD COMPANY (CN)
International Classes:
C09B61/00; D06P1/34
Foreign References:
| CN112322071A | 2021-02-05 | |||
| CN108271794A | 2018-07-13 | |||
| US20120309077A1 | 2012-12-06 | |||
| CN110623886A | 2019-12-31 | |||
| US20180023247A1 | 2018-01-25 | |||
| EP0657159A1 | 1995-06-14 |
Other References:
ZHU, LINA ET AL.: "Extraction and Stability of Pigment From Melia azedarach L. Bark", TEXTILE AUXILIARIES, vol. 35, no. 5, 20 May 2018 (2018-05-20), pages 27 - 32, XP055932551
Attorney, Agent or Firm:
HARBIN SHINEIP INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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