Method for preparing ultra-fine denier polyester filament yarn

A technology of ultra-fine denier polyester and manufacturing method, which is applied in the direction of single-component polyester rayon, melt spinning, etc., to achieve the effects of reducing variance, improving orientation uniformity, and facilitating the penetration of cooling wind

Inactive Publication Date: 2008-03-12
JIANGSU HENGLI CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Method for preparing ultra-fine denier polyester filament yarn
  • Method for preparing ultra-fine denier polyester filament yarn

Examples

Experimental program
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Effect test

Embodiment 1

[0029] The PET melt is extruded through a spinneret to form a tow, and the tow is cooled by a windless zone, a slow cooler, and a side blowing device, and then divided into oils, wound and bundled.

[0030] Among them, the height of the windless zone is 100mm, the height of the slow cooler is 25mm, the height of the side blowing device is 1350mm, the width is 1100mm, the wind speed is 0.3m / s, the wind temperature is 22°C, and the winding speed is 2700m / min. The strength is 2.6cN / dtex, the breaking elongation is 120% POY filament, and after 1.6 times stretching and stretching, the monofilament fineness is 0.25d.p.f, the breaking strength is 4.1cN / dtex, and the breaking elongation is 22% polyparaphenylene Ethylene dicarboxylate DTY filament. The ultra-fine denier polyester DTY filament product is evenly dyed, has high evenness, and has excellent physical properties.

Embodiment 2

[0032] The PET melt is extruded through a spinneret to form a tow, and the tow is cooled by a windless zone, a slow cooler, and a side blowing device, and then divided into oils, wound and bundled.

[0033] Among them, the height of the windless area is 80mm, the height of the slow cooler is 30mm, the height of the side blowing device is 1350mm, the width is 1100mm, the wind speed is 0.3m / s, the wind temperature is 19°C, and the winding speed is 2600m / min. The strength is 2.6cN / dtex, the breaking elongation is 120% POY filament, and after 1.6 times stretching and stretching, the monofilament fineness is 0.3d.p.f, the breaking strength is 4.0cN / dtex, and the breaking elongation is 23% polyparaphenylene Ethylene dicarboxylate DTY filament. The ultra-fine denier polyester DTY filament product is evenly dyed, has high evenness, and has excellent physical properties.

Embodiment 3

[0035] The PET melt is extruded through a spinneret to form a tow, and the tow is cooled by a windless zone, a slow cooler, and a side blowing device, and then divided into oils, wound and bundled.

[0036] Among them, the height of the windless zone is 80mm, the height of the slow cooler is 30mm, the height of the side blowing device is 1350mm, the width is 1100mm, the wind speed is 0.4m / s, the wind temperature is 18°C, and the winding speed is 5700m / min. 0.26d.p.f, breaking strength of 3.3cN / dtex, breaking elongation of 27% polyethylene terephthalate FDY filament. The ultra-fine denier polyester FDY filament product has uniform dyeing, high evenness and excellent physical properties.

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Abstract

The invention relates to a preparation method for super fine denier Terylene filament. The method adopts adopts cross air flow cooling process, to successfully produce a super fine denier terylene filament with monofilament size of 0.2 to 0.5 d.p.f. through adjusting calm zone height, adding a slow cooler and utilizing improved spin-spraying hole arrangement mode and oiling way during spinning process. The Terylene filament has sound spinnability and outstanding physical characteristics and processing performance.

Description

technical field [0001] The invention relates to a method for manufacturing ultrafine denier polyester filaments, in particular to a method for manufacturing ultrafine denier polyester filaments using a side blowing cooling process. Background technique [0002] Ultrafine denier fiber is a kind of differential fiber. Due to its good characteristics such as high coverage, soft hand feeling and comfortable wearing, it has become a hot textile raw material for various textile manufacturers at home and abroad to develop high-end textiles. Its use can effectively improve Product grade and added value. In addition, ultrafine denier fibers can also be used in other fields such as thermal insulation materials, filter materials, ion exchange materials, liquid absorbent materials, biological applications, and the like. Through the combination of ultrafine denier fiber differentiation and other technical fields, the future application fields will become more and more extensive. At pre...

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): D01D5/08D01D5/088D01F6/62
Inventor 丁建中王华平赵金广李文刚康爱旗尹立新屠国华杨玲玲田升黄慧华
Owner JIANGSU HENGLI CHEM FIBER
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