Sheath-core bicomponent fiber and functions thereof

A composite fiber, skin-core technology, applied in the direction of conjugated synthetic polymer rayon, etc., can solve the problem that the water absorption performance cannot meet the requirements of customers, and achieve the effect of good moisture absorption and quick drying performance.

Inactive Publication Date: 2011-06-29
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 water absorption performance produced by this fiber sometimes cannot meet the requirements of customers, and a more ideal wicking function is required.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Dry polyethylene terephthalate (PET) chips and alkali-soluble polyester COPET in a vacuum transfer dryer until the water content is below 50ppm, and send them into the screw through the silo for melting. The sheath-core composite fiber is made of two Screws, controlling their respective temperatures, respectively melt two kinds of raw materials of moisture-absorbing and quick-drying polyester (A: PET+COPET B: PET) that constitute the skin (A) and core (B), A / B=10(5 / 5) / 90 (mass ratio), transported to the spinning box through their respective melt pipelines, and then the melt is quantitatively sent to the sheath-core composite spinning assembly by the metering pump for extrusion, cooling, oiling, and winding Finally, the raw silk of the sheath-core composite fiber is obtained, and the finished sheath-core fiber can be obtained after the raw silk is stretched and shaped. Among them, the spinning temperature is 285°C, the spinning speed is 2500m / min, and the raw silk varie...

Embodiment 2

[0029] Adopt the same spinning temperature, spinning speed, precursor kind, processing method, processing temperature, processing ratio, processing speed as embodiment 1, but change the composite ratio of two kinds of polymers and change by 10(5 / 5) / 90 It is 20(5 / 15) / 80. See Table 1 for specific values.

Embodiment 3

[0031] Adopt the same spinning temperature, spinning speed, precursor kind, processing method, processing temperature, processing ratio, processing speed as embodiment 1, but change the composite ratio of two kinds of polymers and change by 10(5 / 5) / 90 is 30(5 / 25) / 70. See Table 1 for specific values.

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PUM

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Abstract

The invention discloses a sheath-core bicomponent fiber and functions thereof. The composition of the fiber is a polymer, and the composition of a sheath is the mixture of polymer and alkali soluble polyester, the compound ratio of a sheath core is 10 / 90-30 / 70, and alkali-soluble pet in the sheath composition accounts for 5-25wt% of the total weight of the fiber. After being made into textures, the sheath-core bicomponent fiber is subjected to weight reduction treatment and endowed with the performances of moisture absorption and fast drying, so that textiles with the performances of moisture absorption and fast drying can be produced; and the wicking height of the fiber is as high as 75-125mm, and the evaporation rate of water is 75-95%.

Description

technical field [0001] The invention relates to a sheath-core composite fiber, in particular to a composite fiber containing an alkali-soluble polyester blend. Background technique [0002] As one of the three main fibers in synthetic fibers, polyester is widely used in clothing and non-clothing fields because of its excellent physical and chemical properties. Since the advent of polyester products, it has also been used by downstream users as the main textile raw material to weave various textiles due to its good drapability and high strength. However, due to its hydrophobic nature, its application in fields requiring high water absorption or hygroscopicity is limited. Although natural fibers such as pure cotton have good water absorption, their application range is restricted because of their high water retention rate and poor moisture conductivity. How to make a kind of fiber have the high comfort performance of water absorption and moisture conduction at the same time ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14D01F8/12
Inventor 袁浩曹海兵藤森稔
Owner TORAY FIBER RES INST(CHINA) CO LTD
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