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Antibacterial polyester fibers and preparation method thereof

A technology of polyester fiber and polyester, applied in the field of antibacterial polyester fiber and its preparation, can solve the problems of low polarity of PET, affecting fiber spinnability, increasing spinning pressure, etc., achieves excellent washing resistance, simple and easy method, Long-lasting antibacterial effect

Inactive Publication Date: 2015-11-11
俞尧芳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embedding silver nanoparticles into fibers during melt spinning is a relatively simple industrial production method for antibacterial fibers, but the polarity of PET is low, and silver nanoparticles without surface modification have poor compatibility with PET, which is easy to agglomerate and affects The performance of its antibacterial rate and antibacterial durability in polyester materials
For example, the Chinese invention with the publication number CN1789502A discloses a nanocomposite antibacterial polyester POY blending high-speed spinning method. The masterbatch is added to the spinning polyester resin in an amount of 3-7% for melt spinning to obtain antibacterial polyester fibers. The disadvantage of this method is that it is difficult to achieve good dispersion of antibacterial powder in polyester resin, and the dispersion is not good. Uniform powder materials will increase the spinning pressure during spinning, block the spinneret, and affect the spinnability of the fiber, and the uneven dispersion of the antibacterial agent will further affect the antibacterial performance of the fiber
Another example is that the Chinese invention whose publication number is CN101629334A discloses a kind of anti-ultraviolet, antibacterial, moisture-conducting polyester fiber and its production method and application. The main method is to use zirconium phosphate silver-loaded powder to make polyester antibacterial masterbatch. The method has the same disadvantages It is difficult for antibacterial powder to disperse evenly in polyester fibers, which will easily cause poor spinnability and no guarantee of antibacterial performance of fibers

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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  • Antibacterial polyester fibers and preparation method thereof
  • Antibacterial polyester fibers and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A kind of antibacterial polyester fiber is prepared according to the following steps:

[0038] (1) Preparation of pre-treated nano-silver antibacterial agent: place nano-silver at the bottom of the fluidized bed, send 40-45°C hot air to blow nano-silver from the bottom, and the airflow speed is 1m 3 / min, at the same time, use hydroxypropyl-β-cyclodextrin solution as the coating solution for coating treatment, spray the coating solution from the bottom of the fluidized bed, the spray pressure is 0.01Mpa, and the spray speed is 15mL / min, when After the coating solution is completely sprayed, continue to send hot air for 5 minutes to dry the surface of the nano-silver, stop the hot air, and discharge the material to obtain the required pretreatment nano-silver antibacterial agent, wherein: nano-silver and hydroxypropyl-β-cyclopaste The mass ratio of essence is 1:0.05; The concentration of described hydroxypropyl-beta-cyclodextrin solution is 20%,

[0039] (2) Preparation...

Embodiment 2

[0044] A kind of antibacterial polyester fiber is prepared according to the following steps:

[0045] (1) Preparation of pretreatment nano-silver antibacterial agent: place nano-silver at the bottom of the fluidized bed, send 50-55°C hot air to blow nano-silver from the bottom, and the airflow speed is 3m 3 / min, at the same time, use hydroxypropyl-β-cyclodextrin solution as the coating solution for coating treatment, spray the coating solution from the bottom of the fluidized bed, the spray pressure is 0.1Mpa, and the spray speed is 30mL / min, when After the coating solution is completely sprayed, continue to send hot air for 15 minutes to dry the surface of the nano-silver, stop the hot air, and discharge the material to obtain the required pretreatment nano-silver antibacterial agent, in which: nano-silver and hydroxypropyl-β-cyclopaste The mass ratio of essence is 1:0.1; The concentration of described hydroxypropyl-beta-cyclodextrin solution is 30%,

[0046] (2) Preparatio...

Embodiment 3

[0051] A kind of antibacterial polyester fiber is prepared according to the following steps:

[0052] (1) Preparation of pretreatment nano-silver antibacterial agent: place nano-silver at the bottom of the fluidized bed, send 45-50°C hot air to blow nano-silver from the bottom, and the airflow speed is 2m 3 / min, at the same time, use hydroxypropyl-β-cyclodextrin solution as the coating solution for coating treatment, spray the coating solution from the bottom of the fluidized bed, the spray pressure is 0.05Mpa, the spray speed is 18mL / min, when After the coating solution is completely sprayed, continue to send hot air for 9 minutes to dry the surface of the nano-silver, stop the hot air, and discharge the material to obtain the required pretreatment nano-silver antibacterial agent, wherein: nano-silver and hydroxypropyl-β-cyclopaste The mass ratio of essence is 1:0.07; The concentration of described hydroxypropyl-beta-cyclodextrin solution is 25%,

[0053] (2) Preparation of...

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 textile field and particularly relates to antibacterial polyester fibers. The antibacterial polyester fibers are prepared through melt spinning from the following materials in parts by weight: 100 parts of PET (polyester) chips and 2-5 parts of antibacterial polyester master batch, wherein the antibacterial polyester master batch is prepared from PET chips as well as a preprocessing nano-silver antibacterial agent with weight accounting for 2%-5% of that of the PET chips, an antioxidant with weight accounting for 2%-3% of that of the PET chips, a lubricant with weight accounting for 0.1%-2% of that of the PET chips and a dispersant with weight accounting for 1%-3% of that of the PET chips through melt blending and extruding, and the preprocessing nano-silver antibacterial agent is nano silver subjected to coating treatment through a hydroxypropyl-beta-cyclodextrin solution in a fluidized bed. According to the invention, uniform distribution with a small particle size of the nano-silver antibacterial agent in a PET base body is guaranteed, and the high-efficiency and long-acting antibacterial polyester fibers are prepared through melt spinning. A preparation method disclosed by the invention is simple and feasible, and is suitable for industrial popularization and application.

Description

technical field [0001] The invention belongs to the field of textiles, and in particular relates to an antibacterial polyester fiber and a preparation method thereof. Background technique [0002] Functional fiber refers to a new type of fiber that has certain special functions in addition to the physical and mechanical properties of ordinary fibers, such as: health care functions (antibacterial, mite killing, physical therapy and odor removal, etc.); protective functions (radiation protection, Antistatic, anti-ultraviolet, etc.); thermal and humid comfort function (heat absorption, heat release, moisture absorption, moisture release, etc.); medical and environmental protection functions (biocompatibility and biodegradability), etc. With the improvement of people's living standards, the demand for functional fibers is increasing, and antibacterial functional fibers are an important category. [0003] Fiber can attach many microorganisms. If the temperature and humidity are ...

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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IPC IPC(8): D01F6/92D01F1/10C08L67/02C08K13/06C08K9/04C08K3/08
Inventor 俞尧芳
Owner 俞尧芳
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