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Polyester hollow long staple

A long-fiber, hollow technology, which is applied in the field of polyester long fibers, can solve the problems of graininess in insulation materials, short-fiber filling cotton with low bulkiness, and short-fiber down-like cotton that is easy to shift after washing, and achieves cost reduction. Low, easy to produce effects

Inactive Publication Date: 2018-07-03
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN186187A discloses a kind of short-fiber imitation down cotton, but the bulkiness of the short-fiber filling cotton is not high, and there is a grainy feeling when the heat preservation material is made, and the short-fiber down-like cotton is prone to partiality when washed. shift

Method used

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  • Polyester hollow long staple
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  • Polyester hollow long staple

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Semi-dull polyester chips (T200N produced by Toray Fiber Synthetic Fiber Co., Ltd.) are used as raw materials. The polyester chips are dried by a pre-crystallization dehumidification dryer, and the moisture content after drying is 39ppm. The dried slices are melted and extruded by the screw and then transported to the metering pump through piping, and the polymer accurately metered by the metering pump is transported to the spinning assembly. The spinneret of the spinning assembly is a hollow special spinneret, and the cooling distance is 65mm, the wind speed of side blowing is 25m / min, and the hollow polyester fiber is made after DSD high-speed spinning process. The characteristics of the hollow fiber are as follows: the fiber type is 300T-20f, the hollow section is triangular hollow, the hollowness is 20.0%, the single filament fineness is 15.0dtex, the curvature radius before heat treatment is 50.0mm, and after 160℃×3min dry heat treatment The radius of curvature is ...

Embodiment 2

[0043] Semi-dull polyester chips (T200N produced by Toray Fiber Synthetic Fiber Co., Ltd.) are used as raw materials. The polyester chips are dried by a pre-crystallization dehumidification dryer, and the moisture content after drying is 39ppm. The dried slices are melted and extruded by the screw and then transported to the metering pump through piping, and the polymer accurately metered by the metering pump is transported to the spinning assembly. The spinneret of the spinning assembly is a hollow special spinneret, and the cooling distance is 65mm, the wind speed of side blowing is 40m / min, and the hollow polyester fiber is made after DSD high-speed spinning process. The characteristics of the hollow fiber are as follows: the fiber type is 150T-10f, the hollow section is triangular hollow, the hollowness is 30.0%, the single filament fineness is 15.0dtex, the curvature radius before heat treatment is 42.0mm, and after 160℃×3min dry heat treatment The radius of curvature is ...

Embodiment 3

[0045] Semi-dull polyester chips (T200N produced by Toray Fiber Synthetic Fiber Co., Ltd.) are used as raw materials. The polyester chips are dried by a pre-crystallization dehumidification dryer, and the moisture content after drying is 39ppm. The dried slices are melted and extruded by the screw and then transported to the metering pump through piping, and the polymer accurately metered by the metering pump is transported to the spinning assembly. The spinneret of the spinning assembly is a hollow special spinneret, and the cooling distance is 65mm, the wind speed of side blowing is 40m / min, and the hollow polyester fiber is made after DSD high-speed spinning process. The characteristics of the hollow fiber are as follows: the fiber type is 60T-4f, the hollow section is triangular hollow, the hollowness is 45.0%, the single filament fineness is 15.0dtex, the curvature radius before heat treatment is 37.0mm, and after 160℃×3min dry heat treatment The radius of curvature is 7....

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Abstract

The invention discloses a polyester hollow long staple. The hollow degree of a cross section of the polyester hollow long staple is 20.0%-45.0%, the long staple is of a three-dimensional curved shapeat a natural state, and the curvature radius of the curved shape is 10mm-50mm. A fluffy processing yarn processed from the polyester hollow long staple is high in fluffiness, soft in hand feel and suitable for being used as filling long cotton.

Description

technical field [0001] The invention relates to a hollow curled polyester long fiber, which is suitable for making long cotton for filling. Background technique [0002] In the textile industry, the feathers and down of waterfowl, such as goose down and duck down, are usually filled in duvets, sleeping bags and various cold-proof and warm-keeping products. The worldwide outbreak of bird flu has led to a sharp drop in the production of down and down, which has led to an increase in prices. At the same time, consumers also have doubts about the safety of down. If natural feathers are not washed enough, they will cause stench. Therefore, it is necessary to remove the dirt that causes stench in advance to keep the cleanliness of feathers. And there is also the problem that it is difficult to wash the feather filling products such as feather quilts and feather jackets. [0003] For this reason, people in the industry are committed to researching the use of synthetic fibers inst...

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): D01D5/24D01D10/02D01D5/253
CPCD01D5/24D01D5/253D01D10/02D10B2331/04D10B2505/06D02G3/24D02G1/00
Inventor 倪春健吉宫隆之
Owner TORAY FIBER RES INST(CHINA) CO LTD
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