An antibacterial natural silk fiber product and a preparing method thereof

A technology of fiber products and natural silk, which is applied in fiber treatment, animal fiber, biochemical fiber treatment, etc. It can solve problems such as poor bonding fastness, low adhesion, and restrictions on application and promotion, and achieve permanent antibacterial and permanent washability. , good dispersion effect

Active Publication Date: 2017-07-04
湖北福临花纺织有限公司
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  • 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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  • An antibacterial natural silk fiber product and a preparing method thereof
  • An antibacterial natural silk fiber product and a preparing method thereof
  • An antibacterial natural silk fiber product and a preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Prepare an aqueous solution of formic acid with a mass fraction of 90%, then add silver nitrate to the formic acid solution, the mass fraction of silver nitrate is 0.001%, and dissolve with magnetic stirring for 5 minutes in the dark; immerse the raw silk of natural mulberry silk in the formic acid solution, keep it in the dark for 1 hour, and the temperature is 4°C The obtained raw silk is fully washed with water, and after natural drying, the antibacterial mulberry silk product is obtained; X-ray diffraction test is carried out, and it is found that a large amount of nano-silver exists in the inside of silk, and the X-ray diffraction test pattern is shown at 38 °, 44 °, The characteristic diffraction peaks of nano-silver at 64° and 77°, and the transmission electron microscope test also showed uniform nano-silver dispersion on the fiber section; the tensile strength of raw silk before treatment was 380MPa, and after treatment was 372Mpa, reaching more than 96% of that b...

Embodiment 2

[0037] Prepare an aqueous solution of formic acid with a mass fraction of 98%, and then add silver nitrate to the formic acid solution, with a mass fraction of silver nitrate of 0.01%, and stir for 15 minutes in the dark to dissolve; immerse the natural degummed mulberry silk fiber in the formic acid solution, and keep it in the dark for 5 hours, at a temperature of 24 °C; the obtained degummed mulberry silk is fully washed with water, and after natural drying, the antibacterial degummed mulberry silk is obtained; the tensile strength reaches more than 95% of that before treatment.

[0038] Such as figure 1 Shown is the scanning electron microscope picture of untreated degummed silk, as can be seen from the picture, the surface of silk fiber is smooth; figure 2 The scanning electron microscope image of the degummed mulberry silk for antibacterial treatment shows that there are nano-silver on the surface of the silk with a diameter of about 50nm; X-ray diffraction test shows t...

Embodiment 3

[0044] Prepare a formic acid ethanol solution with a mass fraction of 85%, then add silver fluoride to the formic acid solution, the silver fluoride mass fraction is 0.1%, and dissolve with magnetic stirring in the dark for 30 minutes; immerse the degummed natural tussah silk in the formic acid solution, and keep it in the dark for 2 hours. The temperature is 14°C; the obtained degummed natural tussah silk is fully washed, and after natural drying, the antibacterial tussah silk fiber is obtained. Such as image 3 Shown are the camera photos and scanning electron microscope pictures of antibacterially treated degummed tussah silk. In the figure, it can be seen that after nano-silver antibacterial treatment, the silk is yellow, and there are nano-silver with a diameter of about 50nm on the surface of the silk; X-ray diffraction test shows that nano-silver A large amount exists inside the silk, and the X-ray diffraction test pattern shows the characteristic diffraction peaks of n...

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Abstract

An antibacterial natural silk fiber product and a preparing method thereof are disclosed. The method includes steps of preparing a formic acid solution, then adding a silver salt to the solution, stirring the solution to dissolve the silver salt, soaking a natural silk fiber product in the solution comprising the silver salt, performing a reaction for certain time, fully washing the reacted natural silk fiber product, and drying the natural silk fiber product to obtain the antibacterial natural silk fiber product. Wide-spectrum antibacterial performance of silk fibers and textiles thereof are improved, harm to human bodies is avoided, and environment pollution is avoided. The method is simple and prone to bulk production. The obtained antibacterial natural silk fiber product has good antibacterial performance, and the antibacterial performance is durable.

Description

technical field [0001] The invention relates to an antibacterial natural silk fiber product and a preparation method thereof, belonging to the technical field of polymer materials. 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. [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 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 ant...

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): D06M11/83D06M101/10
CPCD06M11/83D06M16/00D06M2101/10
Inventor 张锋张定
Owner 湖北福临花纺织有限公司
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