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Antibacterial spandex fiber and preparation method thereof

A technology of spandex fiber and polyurethane, which is applied in fiber treatment, fiber chemical characteristics, wet spinning method, etc., can solve the problems that the antibacterial effect of textiles is difficult to last, cannot meet the long-lasting antibacterial effect, and the amount of antibacterial agent is high, so as to achieve easy industrial implementation and good performance Good, low antimicrobial effect

Inactive Publication Date: 2015-06-24
ZHEJIANG HUAFENG SPANDEX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, the blending technology is used to blend the antibacterial agent with the fiber-forming polymer before spinning. This type of technology requires a high amount of antibacterial agent and good compatibility with the fiber-forming polymer, which not only increases the cost, but also Affect the spinnability; second, the fibers or textiles are impregnated in a solution containing antibacterial agents by using impregnation technology. The antibacterial effect of textiles prepared by this technology is difficult to last and cannot meet the requirements of long-lasting antibacterial

Method used

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  • Antibacterial spandex fiber and preparation method thereof
  • Antibacterial spandex fiber and preparation method thereof
  • Antibacterial spandex fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Step 1: Preparation of primary fiber core material

[0038] 1) Polyurethane melt chips are placed in a twin-screw extruder, and melt-blended at a temperature of 220° C. to form a melt-spinning body;

[0039] The second step: the preparation of primary fiber foreskin material

[0040] 1) Preparation of fiber-forming polymer: the molar ratio of diisocyanate to polytetrahydrofuran diol is 1.8, pre-polymerized at 90°C for 45 minutes, after the pre-polymerization is completed, add N,N-dimethylacetamide solvent to the prepolymer into a solution with a concentration of 50% by mass; the chain extender is N, N- Dimethylacetamide solution, the mass percentage concentration is 4.0%; the chain extender is added to the prepolymer solution to extend the chain, and after the chain extension, the N,N-dimethylacetamide solution of the fiber-forming polymer is obtained, and the amine The mass ratio of the class to the fiber-forming polymer is 1.0%, and the mass percentage concentration...

Embodiment 2

[0050] Step 1: Preparation of primary fiber core material

[0051] 1) Polyurethane melt chips are placed in a twin-screw extruder, and melt-blended at a temperature of 220° C. to form a melt-spinning body;

[0052] The second step: the preparation of primary fiber foreskin material

[0053] 1) Preparation of fiber-forming polymer: the molar ratio of diisocyanate to polytetrahydrofuran diol is 1.8, and pre-polymerized at 90°C for 45 minutes. After the pre-polymerization is completed, add N,N-dimethylacetamide solvent to the prepolymer to prepare into a solution with a concentration of 50% by mass; the chain extender is N, N- Dimethylacetamide solution, the mass percent concentration is 4.0%; the chain extender is added to the prepolymer solution to extend the chain, and after the chain extension, the N,N-dimethylacetamide solution of the fiber-forming polymer is obtained, and the amine The mass ratio of the class to the fiber-forming polymer is 2.0%, and the mass percentage con...

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Abstract

The invention discloses an antibacterial spandex fiber and a preparation method thereof. The antibacterial spandex fiber is prepared by combining a wrapper and a core part, wherein the section of the fiber is solid; the material of the core material is a polyurethane slice for melt spinning; the wrapper comprises the following raw materials in percentage by mass: 0.1-0.2% of a silver ion compound, 0.1-0.5% of an ultraviolet screening agent, 0.1-0.55 of an antioxidant,0.2-1.0% of a lubricant, 0.1-0.5% of a matting agent and 97.3-99.4% of fiber forming aggregate. The preparation method of the antibacterial spandex fiber comprises the following steps: 1 manufacturing an antibacterial spandex core part by a melt spinning technique according to the formula ratio; 2 manufacturing an antibacterial spandex wrapper by a wet-dry spinning technology according to the ratio; and 3 spinning by wet-dry spinning equipment and process through a special spinneret assembly, and thus preparing the antibacterial spandex fiber by a special coagulating bath. The preparation method of the antibacterial spandex fiber is simple in process; the antibacterial agent is low in amount, economical and practical; and the prepared antibacterial spandex fiber is stable and uniform in performance, broad-spectrum antibacterial and lasting in antibacterial effect.

Description

technical field [0001] The invention relates to a functional chemical fiber and a manufacturing method thereof, in particular to a preparation method of an antibacterial spandex fiber. Background technique [0002] Spandex is a polyurethane elastic fiber, which is one of the key factors to improve the quality of fabrics. With the continuous improvement of national living standards, consumers have higher and higher requirements for the comfort of fabrics. Antibacterial spandex fiber can not only improve the comfort of the fabric, but also endow the fabric with antibacterial function, making the fabric cleaner and healthier. Antibacterial spandex fiber can be used in underwear, medical textiles, diapers, sanitary napkins and other products to provide consumers with a more comprehensive health guarantee. [0003] The current antibacterial fiber mainly has the following manufacturing technology routes. First, the blending technology is used to blend the antibacterial agent wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/16D01F1/10C08G18/66C08G18/48C08G18/32C08G18/10D01D5/06D01D5/04D01D5/34
Inventor 王小华钱锦薛士壮刘珊珊晋中成梁红军朱炫相
Owner ZHEJIANG HUAFENG SPANDEX
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