Method for producing organic-silicone-modified hydrophilic abnormity polyester fiber

A technology of polyester fiber and manufacturing method, which is applied in the direction of single-component copolyester rayon, etc., can solve the problems of slow moisture divergence, poor moisture permeability, and low water absorption, and achieve improved wearing performance and moisture absorption. Good performance, increase the effect of adsorption

Inactive Publication Date: 2011-04-27
SHANGHAI DEFULUN CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As we all know: cotton is an example of natural fiber, which has good hygroscopicity and is comfortable to wear. However, when a person sweats a little, the cotton fiber will expand due to moisture absorption, and its luck will decrease and stick to the skin. At the same time, the moisture will disperse The speed is also slow, which causes a cold and wet feeling to the human body; synthetic fiber polyester is a kind of fiber with high crystallinity, and there is no hydrophilic group in the main molecular chain, so it is hydrophobic, its water absorption is small, and it is transparent. Poor wet performance, due to the accumulation of static electricity, it is easy to cause troubles of entanglement when wearing it, especially when it is active, it is easy to feel stuffy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Production of cross-shaped silicone modified hydrophilic shaped polyester fibers with a denier of 1.56 (dtex). The silicone-modified hydrophilic polyester slices with a viscosity between 0.69 and 0.71 and a melting point between 248 and 252°C are vacuum-dried. First, keep the temperature at 60°C for 1 hour, then raise the temperature to 80°C and keep it for 1 hour. Keep the temperature at 100°C for 2 hours, raise the temperature to 120°C for 2 hours, gradually raise the temperature to 160°C and keep it until dry crystal slices are obtained. The drying process generally takes 14 hours. Use the existing spinning equipment, that is, spin on the LHV451 spinning machine, and then wind and shape it into nascent fiber. A cross-shaped spinneret is used, the spinning temperature is 273 ° C, and the winding speed is 1300m / min. The fibers are bundled and drawn on the LHV903 post-drawing machine with a draw ratio of 3.7 times to obtain a 1.56dtex cross-shaped silicone-modified hydr...

Embodiment 2

[0013] Production of hollow silicone-modified hydrophilic shaped polyester fibers with a fineness of 2.22 denier (dtex). The viscosity is between 0.68 ~ 0.7, the melting point is between 246 ~ 254 ° C silicone modified hydrophilic polyester chips, vacuum drying, first set the temperature at 60 ° C for 1 hour, then raise the temperature to 100 ° C for 2 hours, then heat up Keep warm at 120°C for 2 hours, then gradually raise the temperature to 155°C and keep warm until dry crystal slices are obtained. The drying process generally takes 14 hours. With the existing spinning equipment, that is, spinning on the LHV451 spinning machine, the spinning spinneret used is a hollow spinneret, and then wound into as-spun fibers, the spinning temperature is 275°C, and the winding speed is 1050m / min, the primary raw fiber is bundled and drawn on the LHV903 post-drawing machine with a draw ratio of 3.6 times to obtain 2.22dtex hollow silicone modified hydrophilic special-shaped polyester fib...

Embodiment 3

[0015] Production of trilobal silicone-modified hydrophilic shaped polyester fibers with a denier of 1.33 (dtex). The viscosity is between 0.70 ~ 0.72, the melting point is between 252 ~ 255 ° C silicone modified hydrophilic polyester chips, vacuum drying, first set the temperature at 60 ° C for 1 hour, then raise the temperature to 80 ° C for 1 hour, heat up Keep warm at 120°C for 2 hours, then gradually raise the temperature to 160°C and keep warm until dry crystal slices are obtained. The drying process generally takes 14 hours. With the existing spinning equipment, that is, spinning on the LHV451 spinning machine, the spinning spinneret used is a three-lobed spinneret, and then coiled into as-spun fibers, the spinning temperature is 272 ° C, and the winding speed is 1400m / min, the primary raw fiber is bundled and drawn on the LHV903 post-drawing machine with a draw ratio of 3.6 times to obtain 1.33dtex trilobal silicone modified hydrophilic special-shaped polyester fiber. ...

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Abstract

The invention provides a method for producing organic-silicone-modified hydrophilic abnormity polyester fibers. In the invention, organic-silicone-modified hydrophilic polyester chips are prepared, andpolyester fiber producing technology is applied, the spinning temperature is from 265 DEG C. to 288 DEG C., and the draft multiple is from 3.5 to 3.8 times. The produced organic-silicone-modified hydrophilic abnormity polyester fiber can enhance the capillary action by fiber section heteromorphosis, so that the fabrics generates the wicking function because of capillary channels on the fibers or among the fibers so as to have drying and moisture transmitting property. Because modified polyester fiber fabrics have the advantages of favorable moisture absorption performance and comfortable wearing feeling, thereby overcoming the defects of natural fiber that clothes cling to the body and cause people to feel wet and cold when swear amount of people is comparatively large. The organic-silicone-modified hydrophilic abnormity polyester fiber can be used for pure spinning and blend spinning or interweaving with cotton, wool, silk, flax and other chemical fibers and synthetic fibers. The organic-silicone-modified hydrophilic abnormity polyester fiber can be used for mechanical weaving and knitting, and is mainly used in the aspects of gym suits, sportswear, underwear, coats, socks, gloves, bras, protective film, caps, towels and the like. The fabrics made of the organic-silicone-modified hydrophilic abnormity polyester fibers enable people to feel dry and comfortable.

Description

technical field [0001] The invention relates to the textile industry, in particular to a method for manufacturing silicone-modified hydrophilic special-shaped polyester fibers in the field of synthetic fiber production. Background technique [0002] In recent years, people have higher and higher requirements for the comfort, health, safety and environmental protection of clothing fabrics. With the increase of people's outdoor activities, the trend of mutual penetration and integration of casual wear and sportswear is also Increasingly favored by consumers, the fabrics of this type of clothing not only require good comfort, but also require that the clothing will not stick to the skin and produce a cold and damp feeling when sweating profusely occurs during activities. Therefore, new requirements for moisture absorption and perspiration are put forward for the fibers of the fabric. As we all know: cotton is an example of natural fiber, which has good hygroscopicity and is co...

Claims

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Application Information

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IPC IPC(8): D01F6/84
Inventor 冯忠耀朱亚宏何丹农闫吉付杨洁杨卫忠樊文杰张伟德
Owner SHANGHAI DEFULUN CHEM FIBER
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