Method for manufacturing a polyurethane urea elastic fiber having antibacterial and deodorizing functions, and a polyurethane urea elastic fiber manufactured thereby

A polyurethane urea, elastic fiber technology, applied in the direction of single-component polyurethane rayon, rayon manufacturing, textiles and papermaking, etc., can solve the problems of smell, discoloration, difference in antibacterial properties, etc., and achieve increased antibacterial and deodorizing functions. , the effect of minimizing local color changes and improving dispersion

Active Publication Date: 2020-01-03
TAE GWANG IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Regarding this characteristic, it is known that when using silver nanoparticles for antibacterial, etc., aggregates are formed locally due to insufficient dispersion, and there is a difference in antibacterial performance due to a difference in the density of the antibacterial agent, and it cannot be suppressed based on this difference. Local differential growth of bacteria, which can cause problems such as discoloration or odor

Method used

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  • Method for manufacturing a polyurethane urea elastic fiber having antibacterial and deodorizing functions, and a polyurethane urea elastic fiber manufactured thereby

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0116] 1) Use a quantitative pump to continuously transfer polytetramethylene ether glycol (molecular weight 1800) 156.31g / min and diphenylmethane-4,4'-diisocyanate 36.96g / min to a 40°C homogeneous mixer (Static Mixer) and mixed, put into a continuous polymerization tube in the form of a cylindrical tube at 80°C, reacted for 135 minutes, adjusted the reaction so that the terminal unreacted diisocyanate became 2.64 ± 0.02 mol%, and synthesized as a primary polymer polyurethane prepolymers.

[0117] Cool the above-mentioned primary polymer to 40°C and stabilize it within 24 hours, and then put it into the high-shear mixer continuously with N,N-dimethylacetamide 309.93g / min immediately before putting it into the secondary reactor , stirred vigorously at 3500 rpm for 20 seconds. The above-mentioned primary polymer was completely dissolved and cooled to prepare a polyurethane polymer solution having a solid content of 38.27% by weight at 40°C.

[0118] 2) 4.984 kg of ethylenediam...

Embodiment 2

[0125] In Example 1, the reaction was adjusted so that the terminal unreacted diisocyanate became 2.24±0.02 mol%, and the polyurethane prepolymer which is a primary polymer was synthesize|combined, It implemented by the same method.

Embodiment 3

[0127] In Example 1, the reaction was adjusted so that the terminal unreacted diisocyanate became 3.65±0.02 mol%, and the polyurethane prepolymer which is a primary polymer was synthesize|combined, It implemented by the same method.

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Abstract

The present invention relates to a method for manufacturing a polyurethane urea elastic fiber having antibacterial and deodorizing functions, and a polyurethane urea elastic fiber manufactured thereby. Provided are: a novel method for producing a polyurethane urea elastic fiber, which suppresses the production of bacteria and mildews caused by human sweat or the like; a polyurethane urea elastic fiber produced by the method; and an elastic fabric produced by the polyurethane urea elastic fiber. Also provided are a novel polyurethane urea elastic fiber, a fabric, and a method for producing thesame, which prevent local discoloration, odor, and the like due to long-term use.

Description

technical field [0001] The present invention relates to a process for the manufacture of polyurethaneureas having antimicrobial and deodorizing properties, the polyurethaneurea elastic fibers thus produced. Background technique [0002] Polyurethane urea elastic fiber is a polymer obtained by chain-extending an isocyanate-terminated prepolymer synthesized from a high-molecular-weight polyol and an excess of organic diisocyanate with diamine. It is mainly produced by dry and melt spinning, and is combined with poly Nylon or polyester fiber is woven with natural fiber and used as a stretchable functional material in various fields of clothing such as tights, socks, pantyhose, and swimwear. [0003] However, swimming suits or other sportswear made of polyurethane urea elastic yarn are in continuous contact with sweat as people use them for a long time, and it is easy to produce or breed mold or bacteria, etc., and produce odor or partially fade or oxidize over time, thus The c...

Claims

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Application Information

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IPC IPC(8): D01F6/94D01F1/10
CPCD01F6/94D01F1/103D01F1/10D01F6/70D01D5/06D10B2331/10D10B2401/061
Inventor 权容秀韩荣均金泰成都炫在金海东洪景坤
Owner TAE GWANG IND CO LTD
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