Antibiosis acrylic fiber and preparation method thereof

An acrylic fiber and antibacterial agent technology, which is applied in the field of fiber manufacturing, can solve the problems of poor antibacterial and antibacterial washing resistance of fibers, long technical route of antibacterial acrylic fiber, and difficulty in solvent recycling, and achieves good antibacterial washing resistance and antibacterial washing resistance. Excellent, broad-spectrum antibacterial effect

Active Publication Date: 2017-12-01
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problem of poor dispersibility of antibacterial agent in the spinning dope, poor spinnability after adding antibacterial agent, difficulty in solvent recovery and utilization, influence on fiber physical properties, increase of procedures, long technical route and production process in the existing antibacterial acrylic fiber preparation method. The obtained antibacterial acrylic fiber has poor antibacterial and antibacterial washing resistance, and provides a method for preparing an antibacterial acrylic fiber with convenient operation, simple process, low cost, high safety and good antibacterial and antibacterial washing resistance.

Method used

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  • Antibiosis acrylic fiber and preparation method thereof
  • Antibiosis acrylic fiber and preparation method thereof
  • Antibiosis acrylic fiber and preparation method thereof

Examples

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Effect test

Embodiment 1

[0046] A kind of preparation method of antibacterial acrylic fiber, its step is as follows:

[0047] (1) Preparation of acrylic fiber: acrylic fiber spinning solution is extruded through spinneret, solidified at 5°C, water-bath stretching and washing at 80°C to obtain acrylic fiber, wherein acrylic fiber is a copolymer with acrylonitrile content of 80.1wt%. The viscosity-average molecular weight of acrylic fiber is 22,000, and the content of the third monomer itaconic acid in the acrylic fiber is 0.5wt%, and the mass concentration of solvent in the acrylic fiber spinning solution is 90%, and the solvent is 9wt% sodium thiocyanate aqueous solution, spinning The extruding temperature of the head is 70°C, the velocity is 5m / s, the solidified coagulation bath is composed of water and dimethylacetamide, the mass concentration of dimethylacetamide in the coagulation bath is 5%, and the temperature of the water bath stretching is 60°C, stretching ratio is 2;

[0048] (2) Bath immers...

Embodiment 2

[0052] A kind of preparation method of antibacterial acrylic fiber, its step is as follows:

[0053] (1) Preparation of acrylic fiber: the acrylic fiber is extruded through the spinneret, solidified at 30°C, stretched in a water bath and washed at 98°C to obtain the acrylic fiber, wherein the acrylic fiber is a copolymer with an acrylonitrile content of 81wt%. The viscosity-average molecular weight is 100,000, the content of the third monomer sodium propylene sulfonate in the acrylic fiber is 1.5wt%, the mass concentration of the solvent in the acrylic fiber spinning solution is 90%, the solvent is dimethyl sulfoxide, and the spinneret extrudes The temperature is 30°C, the speed is 10m / s, the coagulation bath is composed of water and N,N-dimethylformamide, the mass concentration of N,N-dimethylformamide in the coagulation bath is 40%, the water bath The stretching temperature is 98°C, and the stretching ratio is 15;

[0054] (2) bath immersion: the acrylic fiber bath is immer...

Embodiment 3

[0058] A kind of preparation method of antibacterial acrylic fiber, its step is as follows:

[0059] (1) Preparation of acrylic fiber: the acrylic fiber is extruded through the spinneret, coagulated at 17°C, stretched in a water bath and washed at 89°C to obtain the acrylic fiber, wherein the acrylic fiber is a copolymer with an acrylonitrile content of 88wt%. The viscosity-average molecular weight is 61,000, the content of the third monomer sodium methacrylate sulfonate in the acrylic fiber is 1.0wt%, the mass concentration of the solvent in the acrylic fiber spinning solution is 80%, the solvent is N-methylmorpholine, and the spinning The temperature of head extrusion is 50°C, the velocity is 7.5m / s, the solidified coagulation bath is composed of water and dimethylamine, the mass concentration of dimethylamine in the coagulation bath is 22.5%, the temperature of water bath stretching is 79°C, The stretching factor is 8;

[0060] (2) Bath immersion: acrylic fiber bath is imm...

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Abstract

The invention relates to an antibiosis acrylic fiber and a preparation method thereof. Firstly, an acrylic fiber spinning solution is extruded by a spinning nozzle, solidified, stretched by a water bath and washed to obtain fibers, and the fibers are dipped into solution which contains an organic antibacterial agent and is subjected to thermal stretch and postprocessing to obtain the antibiosis acrylic fiber. Finally, a product mainly consists of the acrylic fiber and the organic antibacterial agent, the acrylic fiber and the organic antibacterial agent are combined through an ionic bond and/ or hydrogen bond; the content of the organic antibacterial agent in the product is 0.2-0.5wt%, the antibacterial rate for staphylococcus aureus, colibacillus and candida albicans is greater than or equal to 99%, the antibacterial rate after washing is carried out for 50 times is greater than or equal to 99%, a filament number is 0.5-5.0dtex, breaking strength is 2.0-.2cN/dtex, the antibiosis acrylic fiber is the short fiber, filament or tow, and the antibiosis acrylic fiber is applied to fields including pure spinning yarns, commingled yarns, knitted fabric, woven fabric or nonwovens. The preparation method for the antibiosis acrylic fiber has the advantages of simple technology, low cost and convenience and flexibility in operation.

Description

technical field [0001] The invention belongs to the field of fiber manufacturing and relates to an antibacterial acrylic fiber and a preparation method thereof. Background technique [0002] Antibacterial acrylic has the characteristics of wool, has good bulkiness and warmth retention, soft hand feeling, excellent sun resistance, and can effectively prevent pathogenic bacteria from invading the human body. It is widely used in textiles, clothing, and car seats , household curtains and other textiles. [0003] At present, the preparation methods of antibacterial acrylic fibers are mainly divided into three categories: 1. adding organic or inorganic antibacterial agents to the spinning stock solution, and then spinning to obtain antibacterial acrylic fibers; The antibacterial agent is mixed with the oil agent, and the above oil is combined with the fiber; 3. The fabric is processed by using a high-efficiency antibacterial agent and post-finishing method. [0004] Patent CN 2...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F11/06D01F6/40
CPCD01F6/40D01F11/06
Inventor 冯德军程筒张玉梅于金超王华平王彪
Owner DONGHUA UNIV
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