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Single stage drawing method for terylene continuous yarn filament in use for meshbelt, and preparation

A technology of polyester filament and drawing method, applied in the field of polyester filament, can solve the problems of easy fading, affect the appearance, and stiff point yarn, and achieve the effect of good luster and softness, easy production management, and small shrinkage in boiling water.

Inactive Publication Date: 2010-06-02
江苏三鑫化纤有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, nylon filament has many disadvantages such as poor color fastness, easy fading under light, loss of original color and brightness, and high raw material prices.
[0003] Polyester filament produced by one-step drawing method has good color fastness, is not easy to fade, and the price is relatively low. The price of raw materials is only about half of that of nylon filament. , high crystallinity, relatively small elongation, generally only 25%-30%, resulting in poor dyeability; increasing elongation, such as elongation greater than 40%, will not only lead to poor dyeing uniformity, but also different shades of color Pigmentation spots, even stiff spots, will affect the appearance
Secondly, the polyester filament produced by the existing one-step stretching method has poor dimensional stability, and the shrinkage after the ribbon is relatively large
Furthermore, the polyester filament produced by the existing one-step stretching method has high initial modulus, strong rigidity, and poor hand softness.
In addition, the luster of polyester filament is relatively poor, which is objectively inferior to that of nylon filament
Due to the above reasons, the polyester filaments produced by the current one-step stretching method cannot be directly used for the aforementioned webbing

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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  • Single stage drawing method for terylene continuous yarn filament in use for meshbelt, and preparation
  • Single stage drawing method for terylene continuous yarn filament in use for meshbelt, and preparation

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Embodiment

[0014] Embodiment: the present invention one-step stretching method prepares the specification to be 76dt / 36f polyester long filament, adopts the spinneret of trilobal shape hole, and spinneret stretching ratio is 150 times, spinning speed 4500m / min, drawing roll speed 2300m / min, setting roller speed 4550m / min (stretching ratio 1.98), stretching roller temperature 88°C, setting roller temperature 130°C, cooling wind speed (wind temperature 23°C) 0.6m / s, melt freezing point position moves up 8cm. The cross-section of the obtained filament is trilobal, the degree of irregularity is 35%, the strength is 3.9CN / dt, the elongation is 44%, the shrinkage in boiling water is 6.7%, and the dyeing uniformity is ≥ 4 grades.

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Abstract

The present invention relates to an improved one-step drawing method for preparing polyester filament for weaving tape. Said polyester filament is characterized by that it cross section is made into the form of trefoil, heterogeneous degree is 34-39%, extensibility is 40-50% and shrinkage in boiling water is 6.0-7.0%.

Description

technical field [0001] The invention relates to a weaving filament for a webbing, in particular to a polyester filament prepared by an improved one-step stretching method. Background technique [0002] With the improvement of modern living standards and frequent exchanges of etiquette, the amount of gift belts, high-end commodity decorative belts, and clothing lace belts is increasing. The filaments used for weaving ribbons require good dyeability, bright color, good luster and softness. The only braided filament that can basically meet this requirement is nylon filament with a triangular cross-section. However, nylon filament has many shortcomings such as poor color fastness, easy fading by light, loss of original color and brightness, and high raw material price. [0003] Polyester filament produced by one-step drawing method has good color fastness, is not easy to fade, and the price is relatively low. The price of raw materials is only about half of that of nylon filame...

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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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/253D01F6/62
Inventor 毛羽平周国华毛玖津
Owner 江苏三鑫化纤有限公司
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