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Novel silver antibacterial polyester fiber and preparation method thereof

A polyester fiber and a new technology, applied in the field of silver-based antibacterial fibers and their preparation, can solve the problems of difficult processing of antibacterial fibers, poor antibacterial effect and stability, etc., and achieve the effects of easy dyeing, obvious antibacterial effect, and improved processability.

Inactive Publication Date: 2019-07-23
NANTONG HEQING TEXTILE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantages of difficult antibacterial fiber processing, poor antibacterial effect and stability in the prior art, and provide a new method of durable antibacterial polyester fiber

Method used

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  • Novel silver antibacterial polyester fiber and preparation method thereof
  • Novel silver antibacterial polyester fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Put 100.0kg of DMT, 19.2kg of antibacterial agent, and 73.3kg of ethylene glycol into a 300L esterification kettle, add 13.0g of catalyst zinc acetate, and conduct a transesterification reaction at a temperature of 200°C for 4 hours under a nitrogen atmosphere. When the methanol output is 32.7kg, the esterification is completed. Exchange reaction: Add 29.1g of antimony ethylene glycol catalyst, 7.4g of trimethyl phosphate and copper antibacterial polyester esterification solution into the polycondensation reactor, react at 282°C and 50Pa for 4 hours, discharge, cut and slice Viscosity 0.64dL / g.

[0024] Vacuum dry the slices at 120°C for 24 hours, and then enter the spinning machine for melt spinning. The POY specification is 72f / 150D, the spinning temperature is 289°C, the side blowing wind speed is 0.3m / s, and the oiling rate is 1.2%. The speed is 2800m / min; the FDY specification is 72f / 150D, the spinning temperature is 289°C, the side blowing wind speed is 0.3m / s, th...

Embodiment 2

[0026] Add 100.0kg of DMT, 1.9kg of antibacterial agent, and 51.7kg of ethylene glycol into a 300L esterification kettle, add 15.0g of cobalt acetate as a catalyst, conduct a transesterification reaction at a temperature of 180°C for 6 hours under a nitrogen atmosphere, and end the transesterification when the amount of methanol produced is 30kg Reaction: Add 26.7g of antimony ethylene glycol catalyst, 7.4g of triethyl phosphate and copper antibacterial polyester esterification solution into the polycondensation reactor, react at 285°C and 30Pa for 3 hours, discharge, cut, slice viscosity 0.71dL / g.

[0027] Vacuum dry the slices at 130°C for 24 hours, and then enter the spinning machine for melt spinning. The POY specification is 72f / 150D, the spinning temperature is 289°C, the side blowing wind speed is 0.5m / s, the oiling rate is 1.3%, and the spinning The speed is 3200m / min; the FDY specification is 72f / 150D, the spinning temperature is 289°C, the side blowing wind speed is ...

Embodiment 3

[0029] Put 100.0kg of DMT, 9.6kg of antibacterial agent, and 73.0kg of ethylene glycol into a 300L esterification kettle, add 13.0g of catalyst zinc acetate, and conduct a transesterification reaction at a temperature of 220°C for 2 hours under a nitrogen atmosphere. When the amount of methanol produced is 31.2kg, the esterification is completed. Exchange reaction: Add 29.1g of catalyst antimony trioxide, 5.4g of phosphoric acid and copper antibacterial polyester esterification solution into the polycondensation reactor, react at 278°C and pressure of 20Pa for 4h, discharge, cut, slice viscosity 0.64dL / g.

[0030] Vacuum dry the slices at 140°C for 24 hours, and then enter the spinning machine for melt spinning. The POY specification is 144f / 150D, the spinning temperature is 289°C, the side blowing wind speed is 0.3m / s, the oiling rate is 1.0%, and the spinning The speed is 3000m / min; the FDY specification is 144f / 150D, the spinning temperature is 289°C, the side blowing wind...

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Abstract

The invention discloses a novel silver antibacterial polyester fiber and a preparation method thereof. The method is characterized by including the following steps of (a) transesterification, whereinDMT, an antibacterial agent and ethanediol are subjected to transesterification for 2-6 hours under normal pressure in a nitrogen environment at the temperature of 170-240 DEG C; (b) polycondensation,wherein antibacterial esterification liquid, a catalyst and a stabilizer react for 1-4 hours at the temperature of 265-295 DEG C and the pressure less than 100 Pa, polycondensation is conducted untilthe target viscosity is 0.60-0.75 dL / g, and pelletizing, drying and packaging are conducted; 3, spinning, wherein novel silver antibacterial polyester chips are subjected to melt spinning to preparethe antibacterial polyester POY and FDY fiber. The silver antibacterial polyester fiber prepared by the method has the advantages of being good in stable antibacterial property, easy to dye, easy to process and the like.

Description

technical field [0001] The invention belongs to the field of functional fibers, in particular to a silver-based antibacterial fiber and a preparation method thereof Background technique [0002] The development of the economy and the spread of the concept of health and environmental protection have made antibacterial textiles a focus of attention. Silver antibacterial fibers have the best antibacterial effect on the market. [0003] At present, silver antibacterial fibers on the market basically adopt the technology of blending inorganic metal ions and melt spinning, that is, inorganic silver ions are added as antibacterial components to melt-spun fibers (polyester, nylon, etc.) by blending. Its advantage is that it is easy to process and the equipment is simple. The disadvantage is that it only has a single antibacterial function, and the addition amount should not be too large (1%), and most of the added functional powder is embedded inside, resulting in the addition of at...

Claims

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Application Information

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IPC IPC(8): D01F6/84C08G63/688
CPCC08G63/688D01F6/84
Inventor 纪国营张莹
Owner NANTONG HEQING TEXTILE TECH CO LTD