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Polyester composite fiber and method for producing same

A technology for composite fibers, production methods, applied in the direction of fiber processing, conjugated synthetic polymer artificial filaments, filament/thread forming, etc.

Inactive Publication Date: 2010-06-23
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polymer in the core layer is not an alkali-soluble polymer, so it cannot be made into a hollow fiber to achieve a lightweight and warm effect

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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  • Polyester composite fiber and method for producing same
  • Polyester composite fiber and method for producing same
  • Polyester composite fiber and method for producing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The skin component polymer polyethylene terephthalate (PET) slices and the core component polymer alkali soluble copolyester (COPET) slices are dried to below 100ppm respectively, and the PET slices enter the A screw through the A silo at 290 Melting at ℃ temperature, the discharge volume is controlled by A metering pump, and the COPET chip enters the B screw through the B silo to be melted at 270°C, and the discharge volume is controlled by the B metering pump. The composite spinning assembly whose temperature is controlled by the spinning box under the condition of 290 ℃, spins the as-spun fibers, cools and solidifies them under the condition of the side blowing wind speed of 25m / min, and then oils the fibers evenly through the oiling nozzle to bundle the fibers and reduce them. For friction, the oil supply rate is 0.7%. The fibers that have been oiled and bundled pass through the spinning shaft, intertwine through the pre-interlacer, enter the first roller (1GR) at a...

Embodiment 2

[0033]The skin component polymer polyethylene terephthalate (PET) slices and the core component polymer alkali soluble copolyester (COPET) slices are dried to below 100ppm respectively, and the PET slices enter the A screw through the A silo at 290 Melting at a temperature of ℃, the discharge volume is controlled by the A metering pump, and the COPET chips enter the B screw through the B silo to be melted at a temperature of 270°C, and the discharge volume is controlled by the B metering pump. The composite spinning assembly whose temperature is controlled by the spinning box under the condition of 290 ℃, spins the as-spun fibers, cools and solidifies them under the condition of the side blowing wind speed of 25m / min, and then oils the fibers evenly through the oiling nozzle to bundle the fibers and reduce them. For friction, the oil supply rate is 0.7%. The fibers that have been oiled and bundled pass through the spinning shaft, intertwine through the pre-interlacer, enter th...

Embodiment 3

[0036] The skin component polymer polyethylene terephthalate (PET) slices and the core component polymer alkali soluble copolyester (COPET) slices are dried to below 100ppm respectively, and the PET slices enter the A screw through the A silo at 290 Melting at ℃ temperature, the discharge volume is controlled by A metering pump, the COPET chip enters the B screw through the B silo and melted at a temperature of 270°C, and the discharge volume is controlled by the B metering pump. The composite spinning assembly whose temperature is controlled by the spinning box under the condition of 290 ℃, spins the as-spun fibers, cools and solidifies them under the condition of the side blowing wind speed of 25m / min, and then oils the fibers evenly through the oiling nozzle to bundle the fibers and reduce them. For friction, the oil supply rate is 0.7%. The fibers that have been oiled and bundled pass through the spinning shaft, intertwine through the pre-interlacer, enter the first roller...

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 discloses polyester composite fiber and a method for producing the same. The polyester composite fiber adopts the skin-core composite structure, wherein the ratio of weight percent of the skin to the weight percent of the core is 50:50 to 90:10. The polymer in the core is alkali soluble copolyester. The length of the arc of the exposed part of the core on the cross section of the polyester composite fiber is 5-20 percent of the outer circumference of the polyester composite fiber. The thickness of the wall of the skin is 5-20 micron. The method for producing the polyester composite fiber comprises the steps of preparing original filament, preparing deformed filament or preparing extended filament. The fiber of the invention is prepared to fabric after post processing and is subjected to deweighting in the sodium hydroxide solution, the processed polyester composite fiber can keep the strength of more than 95 percent and the complete C-section so that the fabric has light weight, good heat preservation performance and good moisture adsorption and perspiration elimination performance.

Description

Technical field: [0001] The invention relates to a polyester composite fiber and a manufacturing method thereof. Background technique: [0002] With the rapid development of science and technology and the continuous improvement of people's living standards, people's requirements for the practical functions of clothing are not only to protect the body from the cold, but also in many ways: from comfort to health care, from safety to hygiene, from convenience for storage and It can be processed to suit different climates and environments, from adapting to the rhythm of life of modern people to adapting to the way of life of modern people. Especially in recent years, the climate is erratic, and the daily temperature difference is large. People often cause frequent outbreaks of many diseases due to untimely replacement of clothes. higher requirements. [0003] The human body and the outside world transfer heat to the outside world through clothing in three forms of heat conduct...

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): D01F8/14D01F8/12D01D5/34D02G1/02D02J1/22
Inventor 曹海兵黄儒佐藤正幸
Owner TORAY FIBER RES INST(CHINA) CO LTD
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