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A kind of antibacterial treatment method of silk fiber or its fabric

A processing method and technology for mulberry silk fibers, applied in the field of natural silk fabrics, can solve the problems of human health hazards, poor antibacterial broad-spectrum, unreliable safety, etc., and achieve the effects of simple process and obvious antibacterial effect.

Inactive Publication Date: 2011-12-21
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Generally, the antibacterial agents used in post-textile finishing mainly include quaternary ammonium salts, organosilicon quaternary ammonium salts, chitin, chitosan, inorganic salts and natural product extracts, etc., but most of the antibacterial agents currently on the market have antibacterial Poor broad-spectrum, poor washing resistance, unreliable safety, etc.; and the antibacterial fiber or fabric obtained by the antibacterial finishing method, the antibacterial mode is mostly dissolution type, because the dissolution of certain antibacterial metals and antibacterial agents is harmful to human health. Harmful, and will also cause secondary pollution to the environment

Method used

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  • A kind of antibacterial treatment method of silk fiber or its fabric
  • A kind of antibacterial treatment method of silk fiber or its fabric
  • A kind of antibacterial treatment method of silk fiber or its fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Take 10g of mulberry silk fiber, adjust the water content of mulberry silk fiber to 50%, then immediately place the sample in a liquid nitrogen tank with a temperature of -196°C for 72 hours, then take out the sample and immediately put it in a vacuum drying oven , reheat for 3 hours at an absolute vacuum of 10kPa and a temperature of 100°C, then open the vacuum box, wait for the temperature to return to room temperature, take out the sample, and save it for later use. The samples were left for 15 days for antibacterial testing.

Embodiment 2

[0046] Get 10g of mulberry silk fiber, adjust the water content of mulberry silk fiber to 80%, and the freezing temperature is -80°C, and the freezing time is 24h. After that, the sample is taken out, and immediately put into a vacuum drying box. ×10 -2 Pa, rewarm at 100°C for 3 hours, then open the vacuum box, take out the sample when the temperature returns to room temperature, and save it for later use. The samples were left for 35 days for antibacterial testing.

Embodiment 3

[0048] The antibacterial test adopts the antibacterial fabric test method in the textile industry standard of the People's Republic of China-antibacterial knitwear (FZ / T 73023-2006): shaking flask method.

[0049] The antibacterial effect test is carried out to the silk fiber after the low-temperature freezing treatment of embodiment 1 and Example 2, and the antibacterial performance of the silk fiber without ultra-low temperature freezing treatment is tested simultaneously, and the results are shown in Table 1:

[0050] Table 1. Antibacterial properties of mulberry silk fiber before and after treatment

[0051] project

[0052] The results showed that the silk had a certain antibacterial effect before ultra-low temperature freezing treatment, but it was not significant; the antibacterial effect of the samples after antibacterial treatment on Escherichia coli, Bacillus subtilis, Staphylococcus aureus and other test bacteria was significantly enhanced.

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Abstract

The invention discloses an antibacterial treatment method for silk fiber or its textile, which comprises the following steps: (1) adjusting the water content of silk fiber or its textile to 0%-80%; (2) converting step (1) The obtained silk fiber or its textile is cryogenically frozen for more than 1 hour at a temperature of -40°C to -196°C; (3) the silk fiber or its textile obtained in step (2) is placed under an absolute vacuum of 900kPa at a temperature of 60 to 150 Vacuum drying and rewarming at ℃ for 1 to 5 hours; while improving the broad-spectrum antibacterial properties of silk fibers or their fabrics, avoiding harm to the human body and pollution to the environment.

Description

technical field [0001] The present invention relates to the antibacterial treatment to silk fiber or its fabric, especially relate to adopting cryogenic freezing method to natural silk, comprise: mulberry silk, tussah silk, castor silk, and the fabric of natural silk, comprise: woven fabric, knitted fabric and non-woven fabric A method of weaving fabrics for antimicrobial treatment. Background technique [0002] At present, the antibacterial treatment technology of textiles at home and abroad can be roughly divided into two types: (1) firstly prepare antibacterial fibers, and then make various antibacterial fabrics; (2) post-treat the fabrics with various antibacterial agents to obtain antibacterial properties . [0003] In comparison, the fabric obtained by the first method has a long-lasting antibacterial effect and good washability, but it has high technical content, great difficulty, and a wide range of fields. The production process of antibacterial fibers is relativel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M10/00D06M101/10
Inventor 高香芬左保齐
Owner SUZHOU UNIV
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