Antibacterial silk product loaded with nanometer copper and preparation method thereof

A nano-copper and silk technology, applied in textiles, papermaking, animal fibers, yarns, etc., can solve problems such as poor bonding fastness, low adhesion, and inability to meet practical application requirements, and achieve the effect of avoiding chemical reagent residues

Active Publication Date: 2019-12-10
广东宸际内衣生物科技有限公司
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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 loaded with nanometer copper and preparation method thereof
  • Antibacterial silk product loaded with nanometer copper and preparation method thereof
  • Antibacterial silk product loaded with nanometer copper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034]Configure an aqueous solution of 90% formic acid by mass fraction, then add copper nitrate to the formic acid solution, and stir for 5 minutes in the dark to dissolve, and configure a copper nitrate formic acid solution with a mass concentration of 5%; immerse the natural degummed mulberry silk in red yeast rice with a mass concentration of 0.5% In the fungal phosphate buffer solution, add the above-mentioned copper nitrate formic acid solution after 20 minutes at 15°C, and keep it in the dark for 1h at a temperature of 4°C; irradiate the soaked silk with a UV lamp at a power of 10W for 12h; fully water the obtained silk After washing and natural drying, the antibacterial mulberry silk fiber product is obtained; after testing, the nano-copper content in the fiber is about 8wt%; 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 value of the copper...

Embodiment 2

[0037] Configure a mass fraction of 98% formic acid aqueous solution, then add copper sulfate pentahydrate to the formic acid solution, and magnetically stir in the dark for 15 minutes to dissolve, configure a copper sulfate formic acid solution with a mass concentration of 10%; immerse the natural degummed mulberry silk fiber with a mass concentration of 0.8% In the Monascus phosphate buffer solution of Monascus, add the above-mentioned copper sulfate formic acid solution after 30 minutes at 15°C, and keep it in the dark for 5h, at a temperature of 2°C; irradiate the soaked silk with a UV lamp, with a power of 30W, for 8h; The degummed mulberry silk is fully washed with water, and after natural drying, the antibacterial degummed mulberry silk is obtained; after testing, the nano-copper content in the fiber is about 12wt%; mechanical property tests show that the tensile strength reaches more than 95% of that before treatment.

[0038] The antibacterial test adopts the antibacte...

Embodiment 3

[0043] Configure mass fraction 80% trifluoroacetic acid ethanol solution, then add copper fluoride to the solution, avoid light and magnetically stir for 30min to dissolve, configure copper fluoride trifluoroacetic acid solution with mass concentration of 10%; immerse degummed natural tussah silk in mass concentration In the 0.6% Monascus phosphate buffer solution, add the above-mentioned copper fluoride trifluoroacetic acid solution at 10°C for 20 minutes, and keep it in the dark for 2 hours at a temperature of 1°C; irradiate the soaked silk with a UV lamp with a power of 50W , irradiated for 10 hours; the obtained degummed natural tussah silk was fully washed and dried naturally to obtain the antibacterial tussah silk fiber. After testing, the nano-copper content in the fiber is about 13wt%; 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 diffraction peak, tran...

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Abstract

The invention discloses an antibacterial silk product loaded with nano-copper and a preparation method of same. The method includes the steps of: soaking a silk product in a buffer solution containingmonascus bacteria, adding a copper salt acid solution to soak the silk product, and performing ultraviolet reduction treatment; finally cleaning and drying the product to prepare the antibacterial silk product loaded with nano-copper. The method can improve the broad-spectrum antibacterial effect of the silk fibers and a fabric thereof, can avoid damage on human body and pollution on environment.The preparation method is simple and is easy to carry out in large scale production. The antibacterial silk product has excellent and durable antibacterial function.

Description

technical field [0001] The invention relates to an antibacterial natural polymer fiber, in particular to an antibacterial silk product loaded with nanometer 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...

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 Patents(China)
IPC IPC(8): D06M11/83D02G3/44D02G3/04D01C3/00D06M101/12
CPCD01C3/00D02G3/042D02G3/449D06M11/83D06M16/00D06M2101/12D10B2201/02D10B2211/04
Inventor 黄继伟董慧敏于媛媛
Owner 广东宸际内衣生物科技有限公司
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