Preparation method of self-winding polyester FDY fiber and prepared polyester FDY fiber

A self-curling, polyester technology, applied in the field of polyester FDY fiber, can solve the problems of poor suspension and inconspicuous nodes, and achieve the effects of increasing drape, good moisture absorption and perspiration and ventilation

Active Publication Date: 2020-06-12
广东省化学纤维研究所有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The linen-like fabric prepared by this method has certain functions of moisture absorption and perspiration and ventilation, and has good dyeing performance; but the uneven nodes of the linen-like fabric are not obvious, and the suspension is poor

Method used

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  • Preparation method of self-winding polyester FDY fiber and prepared polyester FDY fiber
  • Preparation method of self-winding polyester FDY fiber and prepared polyester FDY fiber
  • Preparation method of self-winding polyester FDY fiber and prepared polyester FDY fiber

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preparation example Construction

[0025] A kind of preparation method of self crimping polyester FDY fiber, comprises the following steps:

[0026] A. After crystallizing, drying and extruding the low-shrinkage polyester chips, they are spun through an "8"-shaped spinneret to obtain low-shrinkage polyester spinning; among them, the low-shrinkage polyester chips are those with a shrinkage rate of <20%. polyester chips;

[0027] B. Mix the high-shrinkage polyester chip and the polyester chip C evenly to form a mixture; wherein, the high-shrinkage polyester chip is a polyester chip with a shrinkage rate ≥ 20%, and the polyester chip C is polyethylene terephthalate Alcohol ester polyester chips;

[0028] C, the mixture is thickened by a thickening device to form a composite chip; wherein, the viscosity of the composite chip is greater than the viscosity of the low-shrinkage polyester chip;

[0029] D. After the composite chip is dried and extruded, it is spun through an "8"-shaped spinneret to obtain composite s...

Embodiment

[0053] Embodiment group 1-a kind of preparation method of self-curling polyester FDY fiber, comprises the following steps:

[0054] A. Crystallize, dry and extrude low-shrinkage polyester chips with a viscosity of 0.4dl / g, and spin through an "8"-shaped spinneret to obtain low-shrinkage polyester spinning; among them, low-shrinkage polyester chips The shrinkage rate is 10%;

[0055] B, the high-shrinkage polyester chips and the polyester chips C of the following table 1 formulation amount are mixed uniformly to form a mixture; wherein, the shrinkage rate of the high-shrinkage polyester chips is 45%;

[0056] C. Viscosifying the mixture to 0.9dl / g through a viscosifying device to form a composite chip;

[0057] D. After the composite chips are dried and extruded, they are spun through an "8"-shaped spinneret to obtain composite spinning;

[0058] E. According to the formulation amount in the following table 2, after combining the low-shrinkage polyester spinning obtained in s...

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Abstract

The invention discloses a preparation method of a self-winding polyester FDY fiber. The preparation method comprises the following steps: A, crystallizing, drying and extruding low-shrinkage polyesterchips, and performing spinning through an 8-shaped spinneret plate to obtain low-shrinkage polyester spun yarns; B, uniformly mixing high-shrinkage polyester chips and polyester chips C to form a mixture; C, tackifying the mixture through tackifying equipment to form composite chips; D, drying and extruding the composite chips, and performing spinning through the 8-shaped spinneret plate to obtain composite spun yarns; and E, combining the low-shrinkage polyester spun yarns and the composite spun yarns, and performing winding to obtain the polyester FDY fiber. According to the preparation method of the self-winding polyester FDY fiber provided by the technical scheme, the drape property of fabric can be effectively improved; and meanwhile, good moisture absorption, sweat releasing and breathability effects are achieved. The invention further provides the polyester FDY fiber prepared by the preparation method, and the polyester FDY fiber has good moisture absorption, sweat releasing and breathability effects.

Description

technical field [0001] The invention relates to the field of polyester spinning, in particular to a method for preparing self-crimping polyester FDY fibers and the prepared polyester FDY fibers. Background technique [0002] The fibers used in the linen-like fabrics that appear on the existing market are mostly made of single-component spinning and drafting. The effect of linen-like fabrics is mainly formed by the external physical action of twisting the fibers, rather than Realized by the inherent self-curling twist mechanism of the fiber, it cannot form the very obvious concave-convex nodes and good drape required for the imitation of hemp, so the effect of the hemp-like fabric is poor, and the hemp-like effect cannot last. The cross-section of the existing hemp-like fabric mostly adopts a circular cross-section, so the moisture absorption and perspiration and air permeability are also relatively poor. [0003] For example, the Chinese patent application No. 200710191330....

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): D01D5/22D01D5/253D01F8/14
CPCD01D5/22D01D5/253D01F8/14
Inventor 林海黄志宏王孝军
Owner 广东省化学纤维研究所有限公司
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