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Method for manufacturing antibacterial acrylon by adopting blending addition modifying method

A modified acrylic fiber technology, which is applied in the manufacture of rayon, wet spinning, textiles and papermaking, etc., can solve the problems of poor compatibility between antibacterial agents and spinning dope, and achieve excellent performance

Inactive Publication Date: 2009-11-25
SINOPEC SHANGHAI PETROCHEMICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention solves the technical problem of poor compatibility between antibacterial agent and spinning dope

Method used

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  • Method for manufacturing antibacterial acrylon by adopting blending addition modifying method
  • Method for manufacturing antibacterial acrylon by adopting blending addition modifying method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～10

[0021] At 70°C, uniformly mix the solubilizer and emulsifier with the solvent polyethylene glycol-400 in the required ratio, then gradually add the required amount of antibacterial agent into it under stirring, and continue to stir until the system It was clear and transparent, and cooled to prepare an antibacterial additive for later use.

Embodiment 11～18

[0041] The antibacterial additive is added to the acrylic fiber spinning stock solution (the total solid content of stock solution is 12wt%) with sodium thiocyanate aqueous solution (concentration is 51.3wt%) as spinning solvent by online injection equipment, spinning stock solution is passed through a static mixing device to mix the antibacterial additive with the original solution evenly. Carry out spinning and post-processing according to the general wet spinning process conditions (post-processing steps include cold drawing, washing, hot drawing, oiling, drying and densification, crimping and heat setting, etc.), and the obtained fineness is 1.67dtex antibacterial acrylic. During the whole spinning process, the pressure of the nozzle assembly and the filter did not change abnormally, and the spinning process was smooth.

[0042] See Table 4 for the amount of antibacterial agent added to the spinning dope and the results of the antibacterial test in Examples 11-18. Antiba...

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Abstract

The invention relates to a method for manufacturing antibacterial acrylon by adopting a blending addition modifying method, which adopts a wet spinning process that takes sodium sulfocyanate aqueous solution as solvent. Antibacterial additive is added to spinning solution and evenly mixed with the same to obtain a fiber product after the processes of spinning and post-processing, wherein the antibacterial additive is a solution which comprises the components of antibacterial agent, solubilizing agent, emulsifying agent and solvent; the antibacterial agent is A or the mixture of A and B, wherein A is 2, 4, 4'-trichloro-2'-dihydrox diphenyl ether, B is selected from4-chlorine-3, 5-oylenol or 2, 4-dichloro-3, 5-xylenol, and the weight ratio of A and B is 1 : 0-0.3; the solubilizing agent is polyoxyethylene-polyoxypropylene segmented copolymer with the molecular weight of 7500-9500, wherein the content of polyoxyethylene according to weight proportion is 80-85 percent; the emulsifying agent is selected from one or the mixture of more than two of Tween-20, Tween-40. Tween-60 or Tween-80; and the solvent is polyethyleneglycol-400. The method manufacturing antibacterial acrylon takes the total solid of the spinning solution as a standard, and the addition amount of the antibacterial agent according to weight proportion is 0.5-2.2 percent. The invention solves the technical problem that the compatibility between the antibacterial agent and the spinning solution is poor.

Description

technical field [0001] The invention relates to a method for manufacturing antibacterial acrylic fibers, in particular to a method for manufacturing antibacterial acrylic fibers by using a wet spinning process using sodium thiocyanate aqueous solution as a solvent and a blending and adding modification method. Background technique [0002] In recent years, while people are pursuing the comfort of chemical fiber fabrics, they also pay more and more attention to the health care functions of fabrics. Among them, antibacterial fabrics with bactericidal or antibacterial functions are very popular, such as antibacterial underwear and antibacterial socks. Antibacterial fabrics are usually made of antibacterial functional fibers with antibacterial properties. Acrylic fibers have good warmth retention and moisture permeability, and are easy to blend with wool and cotton. They are suitable for making underwear, socks and other close-fitting fabrics. Therefore, antibacterial acrylic fib...

Claims

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Application Information

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IPC IPC(8): D01F6/54D01F1/10D01D1/02D01D5/06
Inventor 马正升黄胜德季春晓沈卫峰徐静冯林伟严国良黄翔宇
Owner SINOPEC SHANGHAI PETROCHEMICAL CO LTD
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