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Antibacterial silk product with nano-copper and preparation method of antibacterial silk product with nano-copper

A nano-copper and silk technology, applied in textiles and papermaking, biochemical fiber treatment, enzyme/microbial biochemical treatment, etc., can solve problems such as low adhesion, poor bonding fastness, and restrictions on application and promotion

Active Publication Date: 2018-05-08
湖州金裕丝绸科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the common problem of these two methods is that the nano-silver only adheres to the surface of the silk material, and its adhesion is low and the bonding fastness is poor, which cannot meet the requirements of practical applications, so further application and promotion are greatly limited.

Method used

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  • Antibacterial silk product with nano-copper and preparation method of antibacterial silk product with nano-copper
  • Antibacterial silk product with nano-copper and preparation method of antibacterial silk product with nano-copper
  • Antibacterial silk product with nano-copper and preparation method of antibacterial silk product with nano-copper

Examples

Experimental program
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Effect test

Embodiment 1

[0034]Prepare an aqueous solution of formic acid with a mass fraction of 90%, then add copper nitrate to the formic acid solution, stir for 5 minutes in the dark to dissolve, and prepare a copper nitrate formic acid solution with a mass concentration of 5%; at 15°C, immerse the natural degummed mulberry silk with a mass concentration of 0.5 % Monascus phosphate buffer solution, after 20 minutes, add the above-mentioned copper nitrate formic acid solution, keep it in the dark for 1 hour, at a temperature of 4°C; add sodium borohydride to the solution soaked in silk, and stir for 0.5 hours in the dark; The obtained silk is fully washed with water, and after natural drying, the antibacterial mulberry silk fiber product is obtained; after testing, the nano-copper content in the fiber is about 9.5wt%; the X-ray diffraction test is carried out, and the X-ray diffraction angle 2θ is 43.53°, 50.24°, 74.91° °, 89.88°, these characteristic diffraction angles are consistent with the peak ...

Embodiment 2

[0037] Prepare an aqueous solution of formic acid with a mass fraction of 98%, then add copper sulfate pentahydrate to the formic acid solution, stir for 15 minutes in the dark to dissolve, and prepare a copper sulfate formic acid solution with a mass concentration of 10%; at 10°C, immerse the natural degummed mulberry silk fiber in In the Monascus phosphate buffer solution with a concentration of 0.8%, add the above-mentioned copper sulfate formic acid solution after 30 minutes, and keep it in the dark for 5 hours at a temperature of 2°C; add sodium borohydride to the solution soaked in silk, and stir in the dark for 0.5 h; The obtained degummed mulberry silk is fully washed with water, and after natural drying, the antibacterial degummed mulberry silk is obtained; after testing, the nanometer copper content in the fiber is about 15wt%; mechanical property tests show that the tensile strength reaches more than 95% of that before treatment.

[0038] The antibacterial test adopt...

Embodiment 3

[0043] Prepare a trifluoroacetic acid ethanol solution with a mass fraction of 80%, then add copper fluoride to the solution, stir for 30 minutes in the dark to dissolve, and prepare a copper fluoride trifluoroacetic acid solution with a mass concentration of 10%; at 15°C, degummed natural tussah Immerse the silk in the Monascus phosphate buffer solution with a mass concentration of 0.6%, and then add the above-mentioned copper fluoride trifluoroacetic acid solution after 20 minutes, and keep it in the dark for 2 hours at a temperature of 1°C; add citric acid to the solution soaked in silk sodium, avoid light and stir for 1 hour; fully wash the obtained degummed natural tussah silk, and dry naturally to obtain antibacterial tussah silk fiber. After testing, the nano-copper content in the fiber is about 12wt%. X-ray diffraction test shows that a large amount of nano-copper exists inside the silk, and the X-ray diffraction test pattern shows the Nano-copper characteristic diffra...

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Abstract

The invention discloses an antibacterial silk product with nano-copper and a preparation method of the antibacterial silk product with nano-copper. The preparation method comprises the following steps: immersing a silk product in a buffer solution containing monascus, then adding a copper hydrochloride solution for soaking the immersed silk product, then performing reduction treatment with a reducing agent, and finally, performing cleaning and drying to obtain the antibacterial silk product with nano-copper. The antibacterial silk product with nano-copper and the preparation method thereof have the advantages that the broad-spectrum antibacterial property of silk fibers and fabrics thereof can be improved, furthermore, harm to human bodies can be avoided, and pollution to the environment also can be avoided; the preparation method is simple and easy to realize batch production; and the prepared antibacterial silk fiber product has excellent and lasting antibacterial property.

Description

technical field [0001] The invention relates to an antibacterial natural polymer fiber, in particular to an antibacterial silk product with nano-copper and a preparation method thereof. Background technique [0002] At present, domestic and foreign textile antibacterial treatment technologies can be roughly divided into two types: Prepare antibacterial fibers first, and then make various antibacterial fabrics; Fabrics are post-treated with various antimicrobial agents to obtain antimicrobial properties. 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 relatively complicated, and the requirements for antibacterial agents are high. And the processing process of the second method is relatively simple, but there are many three wastes in production, and its washability and antibac...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/83D06M16/00D06M13/188D06M13/21D06M11/70D06M11/55D06M101/12
CPCD06M11/55D06M11/70D06M11/83D06M13/188D06M13/21D06M16/003D06M2101/12
Inventor 黄继伟于媛媛董慧敏
Owner 湖州金裕丝绸科技有限公司
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