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Nano silver bacterial fibre and preparation method thereof

A nano-silver antibacterial and fiber technology, which is applied in fiber type, fiber treatment, plant fiber, etc., can solve the problems of limiting fiber antibacterial performance durability, easy elution, and difficulty entering fibers, etc., to achieve simple production steps and fiber antibacterial performance Long-lasting, evenly distributed effect

Active Publication Date: 2011-01-12
金湖县农副产品营销协会
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of the particle size of the nano-silver powder, most of the nano-silver particles are on the surface of the fiber, and it is difficult to enter the interior of the fiber, and it is easy to elute, thus limiting the durability of the antibacterial properties of the fiber.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A kind of preparation method of nanometer silver antibacterial fiber, fiber is added AgNO 3 In the solution, carry out adsorption treatment; then react at normal pressure at 40-100 DEG C (example 40 DEG C, 70 DEG C, 100 DEG C) for 0.5-4 hours (example 0.5, 2, 4 hours), to obtain nano-silver antibacterial fibers.

[0017] The fiber is cotton fiber or viscose fiber, AgNO 3 The weight concentration of the solution is 0.001% to 0.1% (eg 0.001%, 0.01%, 0.1%), AgNO 3 The solution is NaOH (or Na 2 CO 3 or ammonia and other alkalis) to adjust the pH value to 8-12 (Example 8, 10, 12), and the adsorption time is 5 minutes to 2 hours (Example 10 minutes, 1 hour, 2 hours), AgNO 3 The dosage ratio of the solution to the fiber is: every 2-50 liters (for example 2 liters, 25 liters, 50 liters) AgNO 3 Add fiber 1kg to the solution.

Embodiment 2

[0019] A kind of preparation method of nanometer silver antibacterial fiber, fiber is added AgNO 3 solution, carry out adsorption treatment, and then add 2 to 50 liters (example 2 liters, 25 liters, 50 liters) of sodium citrate solution, sodium borohydride solution or hydrazine solution for reaction; sodium citrate solution, sodium borohydride solution or hydrazine solution The weight concentration of the solution is 0.01-10% (eg 0.01%, 1%, 10%). All the other are with embodiment 1.

Embodiment 3

[0021] A kind of preparation method of nanometer silver antibacterial fiber, fiber is added AgNO 3 In the solution, adsorption treatment; then add 2~50 liters (example 2 liters, 25 liters, 50 liters) sodium citrate solution, sodium borohydride solution or hydrazine solution to react, get nanometer silver antibacterial fiber. The weight concentration of sodium citrate solution, sodium borohydride solution or hydrazine solution is 0.01~10% (eg 0.01%, 1%, 10%).

[0022] The fiber is acrylic fiber or spandex fiber, AgNO 3 The weight concentration of the solution is 0.001% to 0.1% (eg 0.001%, 0.01%, 0.1%), the adsorption time is 5 minutes to 2 hours (eg 10 minutes, 1 hour, 2 hours), AgNO 3 The dosage ratio of the solution to the fiber is: every 2-50 liters (for example 2 liters, 25 liters, 50 liters) AgNO 3 Add fiber 1kg to the solution.

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PUM

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Abstract

The invention discloses a nano silver bacterial fibre preparation method comprising: adding fibre into AgNO3 solution, and adsorbing the mixture; and carrying out reduction reaction on the adsorbed fibre to obtain the nano silver bacterial fibre. The invention has simple production step, and the obtained product has the advantages of even silver nanoparticle distribution and long-lasting fibre antibacterial property and can be washed several times. The invention is suitable for natural fibre and synthetic fibre and can be used for health-care underwear, medicinal gauze, clothes, decorative textiles and the like.

Description

Technical field: [0001] The invention relates to a nano-silver antibacterial fiber and a preparation method thereof. Background technique: [0002] There are usually two ways to manufacture nano-silver antibacterial fibers in traditional methods: (1) mixing pre-prepared or purchased nano-silver powder with molten fibers for direct drawing, or making a mixed solution with polymers for solution spinning. It can only be applied to polymer fibers; (2) disperse the nano-silver powder, and then load the antibacterial agent on the fibers by padding or slurry wrapping. Due to the limitation of the particle size of the nano-silver powder, most of the nano-silver particles are on the surface of the fiber, and it is difficult to enter the interior of the fiber, and it is easy to elute, thus limiting the durability of the antibacterial performance of the fiber. Invention content: [0003] The object of the present invention is to provide a kind of nano-silver antibacterial fiber whic...

Claims

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Application Information

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IPC IPC(8): D06M11/83D06M101/06D06M101/28D06M101/38
Inventor 贾雪平高晓红金瑞娣葛明
Owner 金湖县农副产品营销协会
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