Title:
FLAME RETARDANT SILK, PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/087499
Kind Code:
A1
Abstract:
Disclosed is a method for preparing a flame retardant silk, the method comprising the following steps: soaking silk in a tannic acid solution with a pH value of 3-4, and raising the temperature to 80-90℃ for a temperature holding treatment; and soaking the treated silk in a 2-6 g/L metal salt solution, and raising the temperature to 50-70℃ for a treatment to obtain the flame retardant silk. The method of the present invention endows silk with excellent flame retardant properties without adding any traditional flame retardants containing nitrogen, phosphorus or a halogen element, and can avoid the environmental pollution problems caused by nitrogen, phosphorus and a halogen element during the production and use of a flame retardant silk and after the flame retardant silk is abandoned due to the use of a traditional flame retardant. The method has the advantages of being environmentally friendly, highly efficient, and simple and easy to operate.
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Inventors:
TANG RENCHENG (CN)
YANG TONGTONG (CN)
GUAN JINPING (CN)
CHEN GUOQIANG (CN)
YANG XUHONG (CN)
YANG TONGTONG (CN)
GUAN JINPING (CN)
CHEN GUOQIANG (CN)
YANG XUHONG (CN)
Application Number:
PCT/CN2018/113686
Publication Date:
May 07, 2020
Filing Date:
November 02, 2018
Export Citation:
Assignee:
NANTONG TEXTILE AND SILK INDUSTRIAL TECH RESEARCH INSTITUTE (CN)
UNIV SOOCHOW (CN)
UNIV SOOCHOW (CN)
International Classes:
D06M11/00; C07H13/08
Foreign References:
| CN102140122A | 2011-08-03 | |||
| CN102767077A | 2012-11-07 | |||
| CN108653741A | 2018-10-16 | |||
| GB191415820A | 1915-03-18 |
Other References:
LIU, ZHIJUAN ET AL: "Preparation of Iron-doped Silica Sol and Finishing of Silk", JOURNAL OF SILK, vol. 50, no. 1, 20 January 2013 (2013-01-20), pages 24 - 28, XP009520651, ISSN: 1001-7003, DOI: 10.3969/j.issn.1001-7003.2013.01.006
MA, ZHIHONG ET AL.: "Chemical Properties and Application of Tannic Acid", NATURAL PRODUCT RESEARCH AND DEVELOPMENT, vol. 15, no. 1, 28 February 2003 (2003-02-28), pages 87 - 91, XP009520650, ISSN: 1001-6880, DOI: 10.16333/j.1001-6880.2003.01.023
MA, ZHIHONG ET AL.: "Chemical Properties and Application of Tannic Acid", NATURAL PRODUCT RESEARCH AND DEVELOPMENT, vol. 15, no. 1, 28 February 2003 (2003-02-28), pages 87 - 91, XP009520650, ISSN: 1001-6880, DOI: 10.16333/j.1001-6880.2003.01.023
Attorney, Agent or Firm:
CENTRAL SOUTH WELL INTELLECTUAL PROPERTY OFFICE (CN)
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