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A kind of processing method of antibacterial durable modified polyester fiber

A technology of modified polyester and processing method, which is applied in the direction of fiber chemical characteristics, single-component polyester rayon, textiles and papermaking, etc. It can solve the problems of poor thermal stability, high price, poor high temperature resistance of nitrogen, etc. Achieve good thermal stability, improve alkali resistance, and improve water absorption

Active Publication Date: 2018-06-15
南通好瑞吉家用纺织品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There have been many studies on the antibacterial properties of polyester fibers for bedding, including the addition of natural antibacterial agents, including tea polyphenols, sweeteners, aloin, chitosan and chitin, as well as realgar and bile alum that belong to minerals. It is an ideal natural antibacterial agent. Natural antibacterial agents have high safety, and nitrogen gas has poor high temperature resistance. Compared with non-polar antibacterial agents, organic antibacterial agents have the advantages of strong bactericidal ability, many types, and good immediate effect. The disadvantages are High toxicity, easy migration, poor heat resistance, and the possibility of microbial drug resistance checks, etc., so the application is greatly restricted; the electrodeless antibacterial agent has the stability of inorganic components, antibacterial broad spectrum, high chemical stability, resistance It has the characteristics of good washing performance, long-lasting antibacterial effect, and excellent thermal stability. During use, bacteria are not easy to develop drug resistance, which is less harmful to human health and has high safety. It overcomes the limited resources of natural antibacterial agents and organic antibacterial agents. The disadvantages such as poor thermal stability of the agent have become the focus of antibacterial agent research today. Nano-scale sterile antibacterial agents have better antibacterial effects due to the increase in the specific surface area of ​​​​the particles. Silver is currently the most used It is an antibacterial agent, but it is expensive, has poor light resistance, and may have the risk of human toxicity residue and environmental pollution, and is gradually not accepted by people, and is not allowed to be used as a textile material; nano-zinc oxide has good antibacterial, deodorizing and disinfection functions , treating the fiber fabric with nano-zinc oxide suspension has excellent antibacterial properties, but a single nano-zinc oxide has poor antibacterial properties under weak ultraviolet light irradiation, and then the prior art solves the above problems by preparing nano-copper-zinc oxide composite antibacterial agents However, with the increase of washing times, the antibacterial rate of polyester fiber is also decreasing, so how to solve the above problems needs further research

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A kind of processing method of antibacterial durable modified polyester fiber, comprises the following steps:

[0018] (1) Melt and mix polyester chips with 5% polyethylene by weight and 1.2% petroleum resin, and then spin them to obtain mixed polyester monofilaments, and then dry them in a vacuum oven at 120°C for 8 hours;

[0019] (2) Mix copper-zinc oxide composite antibacterial agent, carbon nanotubes, and sepiolite with a specific surface area of ​​410m² / g at a weight ratio of 8:3:2, add it to a sealable ball mill tank, and fill it with nitrogen after evacuation Carry out ball milling, the ball milling mass ratio is 30, the rotating speed is 400 rpm, the ball milling time is 6h, and the obtained product is vacuum dried at 80°C for 7 hours to obtain composite particles;

[0020] (3) Add the dried composite particles and dried mixed polyester monofilaments into a high-speed blender and mix them sequentially, wherein the weight ratio of composite particles to dried mi...

Embodiment 2

[0025] A kind of processing method of antibacterial durable modified polyester fiber, comprises the following steps:

[0026] (1) Melt and mix polyester chips with 4% polyethylene by weight and 1.4% petroleum resin, and then spin them to obtain mixed polyester monofilaments, and then dry them in a vacuum oven at 120°C for 6 hours;

[0027] (2) Mix copper-zinc oxide composite antibacterial agent, carbon nanotubes, and sepiolite with a specific surface area of ​​410m² / g at a weight ratio of 8:3:2, add it to a sealable ball mill tank, and fill it with nitrogen after evacuation Carry out ball milling, the mass ratio of ball milling is 25, the rotating speed is 350 rpm, the ball milling time is 5h, and the obtained product is vacuum-dried at 80°C for 8 hours to obtain composite particles;

[0028] (3) Put the dried composite particles and dried mixed polyester monofilaments into a high-speed blender and mix them sequentially, wherein the weight ratio of the composite particles to t...

Embodiment 3

[0032] A kind of processing method of antibacterial durable modified polyester fiber, comprises the following steps:

[0033](1) Melt and mix the polyester chip with 7% of its weight polyethylene and 0.8% of petroleum resin, and then spin it to obtain mixed polyester monofilament, and then dry it in a vacuum oven at 120°C for 10 hours;

[0034] (2) Mix copper-zinc oxide composite antibacterial agent, carbon nanotubes, and sepiolite with a specific surface area of ​​410m² / g at a weight ratio of 8:3:2, add it to a sealable ball mill tank, and fill it with nitrogen after evacuation Carry out ball milling, the ball milling mass ratio is 35, the rotating speed is 450 rpm, the ball milling time is 8h, and the obtained product is vacuum dried at 80°C for 6 hours to obtain composite particles;

[0035] (3) Add the dried composite particles and dried mixed polyester monofilaments into a high-speed blender and mix them sequentially, wherein the weight ratio of composite particles to dri...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention belongs to the technical field of processing of polyester fiber for beddings, in particular to a processing method of lasting antibacterial modified polyester fiber. The processing method comprises the steps of preparation of mixed polyester fiber, preparation of composite particles, melting blending and extrusion and drying. Compared with the prior art, the processing method has the advantages that the obtained polyester fiber still keeps good antibacterial performance after being cleaned multiple times, and the problems are effectively avoided that the viscosity is high and the spinnability is influenced after a nano copper-zinc oxide antibacterial agent directly modifies the polyester fiber; the obtained polyester fiber has good thermal stability, the mechanical property (breaking strength and breaking elongation) can meet the processing requirements of the beddings, and after the obtained polyester fiber is washed 50 times, the bacteriostasis rates of the obtained polyester fiber for escherichia coli and staphylococcus aureus can both reach 95% or above.

Description

technical field [0001] The invention belongs to the technical field of polyester fiber processing for bedding, and in particular relates to a processing method of antibacterial and durable modified polyester fiber. Background technique [0002] With the rapid development of the global economy and the continuous improvement of living standards, people's pursuit of quality of life tends to be healthier and more environmentally friendly. Among them, the hygienic function of textiles has attracted people's attention. There are many types of microorganisms in nature and they are everywhere. Harmful bacteria, fungi, and viruses that are harmful to the human body will multiply rapidly in a suitable environment, and spread diseases through contact, affecting human health. Textiles in daily life are good habitats for these microorganisms and important enzymes for transmitting diseases. Therefore , the development and research of antibacterial fibers is particularly important. Among t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/92D01F1/10
CPCD01F1/10D01F1/103D01F6/92
Inventor 刘辉曹卫兵
Owner 南通好瑞吉家用纺织品有限公司
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