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Preparation method of multilayer antibacterial fibers based on negative ions

An antibacterial fiber and negative ion technology, applied in textile and fiber fields, can solve the problems of poor stability of antibacterial agents, achieve the effect of improving stability, ensuring mutual stability and mutual penetration system

Pending Publication Date: 2020-09-08
MINJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems in the prior art, the present invention provides a method for preparing an anion-based multilayer antibacterial fiber, which solves the problem of poor stability of existing antibacterial agents, and uses the insoluble system formed after polyvinyl alcohol high-temperature polymerization to combine antibacterial materials Curing the inner layer, and based on the adsorption and electronegativity of bamboo carbon particles, combined with the characteristics of chitosan, a stable internal adsorption antibacterial system is formed

Method used

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  • Preparation method of multilayer antibacterial fibers based on negative ions

Examples

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Effect test

Embodiment 1

[0023] A preparation method based on anion-based multilayer antibacterial fibers, comprising the steps of:

[0024] Step 1, adding bamboo charcoal particles to absolute ethanol (1L) and stirring evenly, then adding ethyl cellulose to form the first slurry, the particle diameter of the bamboo charcoal particles is 40 μm, and the bamboo charcoal particles are prepared in anhydrous Concentration in ethanol is 80g / L, and the addition of ethyl cellulose is 80% of bamboo charcoal particle quality, and the stirring speed of stirring is 1000r / min;

[0025] Step 2, adding chitosan to anhydrous acetic acid and ultrasonicating at low temperature for 10 minutes to form a second viscous liquid; the chitosan is a saturated liquid in anhydrous acetic acid, the temperature of low-temperature ultrasonication is 5°C, and the ultrasonic frequency is 50kHz , anhydrous acetic acid is slowly added to the chitosan solid until the chitosan is just completely dissolved;

[0026] Step 3, using the sec...

Embodiment 2

[0030] A preparation method based on anion-based multilayer antibacterial fibers, comprising the steps of:

[0031] Step 1, adding bamboo charcoal particles to absolute ethanol (1L) and stirring evenly, then adding ethyl cellulose to form the first slurry, the particle diameter of the bamboo charcoal particles is 10 μm, and the bamboo charcoal particles are prepared in anhydrous Concentration in ethanol is 150g / L, and the addition of ethyl cellulose is 100% of bamboo charcoal particle quality, and the stirring speed of stirring is 2000r / min;

[0032] Step 2: Add chitosan to anhydrous acetic acid (1L) and sonicate at low temperature for 20 minutes to form a second viscous liquid; the chitosan is a saturated liquid in anhydrous acetic acid, and the temperature of low-temperature ultrasonication is 10°C. The frequency is 90kHz, and anhydrous acetic acid is slowly added to the chitosan solid until the chitosan is just completely dissolved;

[0033] Step 3, using the second viscou...

Embodiment 3

[0037] A preparation method based on anion-based multilayer antibacterial fibers, comprising the steps of:

[0038] Step 1, adding bamboo charcoal particles to absolute ethanol (1L) and stirring evenly, then adding ethyl cellulose to form the first slurry, the particle diameter of the bamboo charcoal particles is 30 μm, and the bamboo charcoal particles are prepared in anhydrous The concentration in ethanol is 120g / L, the addition of ethyl cellulose is 90% of bamboo charcoal particle quality, and the stirring speed of stirring is 1500r / min;

[0039] Step 2: Add chitosan to anhydrous acetic acid (1L) and sonicate at low temperature for 15 minutes to form a second viscous liquid; the chitosan is a saturated liquid in anhydrous acetic acid, and the temperature of low-temperature ultrasonication is 8°C. The frequency is 70kHz, and anhydrous acetic acid is slowly added to the chitosan solid until the chitosan is just completely dissolved;

[0040] Step 3, using the second viscous ...

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Abstract

The invention discloses a preparation method of multilayer antibacterial fibers based on negative ions. The preparation method comprises the following steps of adding bamboo carbon particles into absolute ethyl alcohol, uniformly stirring, and adding ethyl cellulose to form a first slurry; adding chitosan into anhydrous acetic acid, and carrying out low-temperature ultrasonic treatment for 10 to 20min to form a second viscous liquid; performing two-gradient extrusion spinning by taking the second viscous liquid as an outer-layer liquid and the first slurry as an inner-layer liquid to obtain afirst fiber yarn; adding polyvinyl alcohol into distilled water, stirring at a constant temperature to form a dissolving solution, spraying the dissolving solution on the surface of the first fiber yarn, standing at a constant temperature for 10-20 minutes, and heating and sintering for 10-20 minutes to obtain a second fiber yarn; and soaking the second fiber yarn in the absolute ethyl alcohol, and performing low-temperature ultrasonic treatment for 10-20min to obtain the multilayer antibacterial fiber. An insoluble system formed after high-temperature polymerization of the polyvinyl alcohol is utilized to cure an antibacterial material in the inner layer, and meanwhile, a stable internal adsorption antibacterial system is formed based on the adsorbability and electronegativity of bamboo carbon particles in combination with the characteristics of chitosan.

Description

technical field [0001] The invention belongs to the field of textiles, relates to the field of fibers, in particular to a method for preparing an anion-based multilayer antibacterial fiber. Background technique [0002] Today, with the improvement of people's living standards and the development of textile culture, it has become fashionable to pursue the beauty, comfort, health care and even functionality of textiles, and the development of modern science and technology provides the possibility to meet people's requirements. The scientific and rational use of multiple fiber blending technologies can endow textiles with more practicality. Since various textile fibers, whether natural fibers or chemical fibers, have their own advantages and disadvantages, the blending and interweaving of different fibers can play an important role. The advantages of each fiber, overcome its shortcomings, realize performance complementarity, greatly improve its wearability, and meet people's in...

Claims

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Application Information

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IPC IPC(8): D01F8/02D01F8/18D01F1/10D01F11/02D04C1/02D01D5/34
CPCD01F8/02D01F8/18D01F1/103D01F11/02D04C1/02D01D5/34D10B2401/13
Inventor 柯惠珍魏取福
Owner MINJIANG UNIV
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