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Title:
STRONGLY HYDROPHOBIC REAL SILK FABRIC AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/012012
Kind Code:
A1
Abstract:
Disclosed is a method for preparing a strongly hydrophobic real silk fabric. A specially designed grafting system is used and comprises laccase, an acetate buffer having a pH of 4-5, lauryl gallate, ethanol, a reaction medium, a catalytic mediator and a copper salt. The method comprises preheating the grafting system at 30-60°C for 10-15 min, maintaining the temperature, then adding a pretreated silk fabric according to a liquor ratio of 1:50, reacting for 2-6 h, sequentially washing with cold water and warm water, then drying, and extracting to obtain said strongly hydrophobic real silk fabric. The method of the present invention features simple reaction, mild reaction, strong catalytic activity, a fast grafting rate, and a high monomer grafting rate. The hydrophobic performance of the real silk fabric is significantly increased. Also disclosed is a strongly hydrophobic real silk fabric prepared by the described method. Said real silk fiber has low surface energy, strong hydrophobic performance, and a lasting hydrophobic effect.

Inventors:
ZHOU CHUNXIAO (CN)
WANG CHUNHUA (CN)
YU JINJIAN (CN)
Application Number:
PCT/CN2021/072508
Publication Date:
January 20, 2022
Filing Date:
January 18, 2021
Export Citation:
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Assignee:
JIANGSU HUAJIA SILK CORP LTD (CN)
NANTONG VOCATIONAL UNIV (CN)
International Classes:
D06M13/224; D06M16/00; D06M101/10
Foreign References:
CN111945425A2020-11-17
CN107904935A2018-04-13
CN107286360A2017-10-24
CN111206431A2020-05-29
CN107419561A2017-12-01
CN105734981A2016-07-06
CN109487545A2019-03-19
CN110042666A2019-07-23
Other References:
GAFFAR HOSSAIN, KH.M. ; DIAZ GONZALEZ, M. ; MONMANY, J.M.D. ; TZANOV, T.: "Effects of alkyl chain lengths of gallates upon enzymatic wool functionalisation", JOURNAL OF MOLECULAR CATALYSIS B : ENZYMATIC, vol. 67, no. 3-4, 1 December 2010 (2010-12-01), pages 231 - 235, XP027444364, ISSN: 1381-1177, DOI: 10.1016/j.molcatb.2010.08.011
Attorney, Agent or Firm:
GUANGZHOU YUEXIU JILY PATENT & TRADEMARK LAW OFFICE (CN)
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