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Method for manufacturing hollow micro-fine terylene denier fiber

A manufacturing method and micro-denier technology, applied in the field of textile fibers, can solve the limitations of the application field, yarn and fabric warmth retention, softness, drapability, adsorption, decontamination, filterability, waterproof and breathable performance can not meet the requirements High-grade fabrics and applications in special fields, etc., to achieve good bulkiness, significant waterproof and breathable functions, and super warmth retention

Active Publication Date: 2012-06-27
NINGBO SANBANG MICROFIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the existing polyester hollow fibers in China are staple fibers or their monofilament fineness is greater than 1.5dpf. It cannot meet the requirements of high-grade fabrics and special field applications, which limits the application fields of this type of products

Method used

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  • Method for manufacturing hollow micro-fine terylene denier fiber
  • Method for manufacturing hollow micro-fine terylene denier fiber
  • Method for manufacturing hollow micro-fine terylene denier fiber

Examples

Experimental program
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Effect test

Embodiment

[0019] Such as figure 1 Shown, the manufacture method of polyester hollow micro-denier fiber provided by the present invention, raw material adopts polyester chip, comprises the following steps:

[0020] a) drying the polyester chips through a crystal dryer, so that the moisture content of the polyester chips after drying is less than 30ppm;

[0021] b) Melting the dried polyester chips through a screw extruder to obtain a polyester melt;

[0022] c) controlling the volume of the melt by the polyester melt formed in step (2) through a spinning metering pump of polyester;

[0023] d) The quantitative polyester melt formed in step (3) is spun through the assembly, and the spinning temperature is 298° C.;

[0024] e) After spinning, the tow is first cooled by cooling air with a temperature of 22°C to 25°C and a humidity of 65% to 85%, and then oiled by an oil metered by an oil metering pump, and finally fully automatic high-speed winding The spinning machine is wound into a si...

Embodiment 2

[0033] The manufacturing method of the polyester hollow micro-denier fiber provided by the present embodiment, its raw material and method steps are basically consistent with embodiment 1, but when the balanced silk cake in step g) of the present embodiment is texturized on a commonly used texturing machine, The draw ratio is 1.55, and the ratio of the surface speed of the friction disc to the speed at which the filament leaves the false twister, that is, the D / Y ratio is 1:1.50.

[0034] The detection index of the polyester hollow micro-denier fiber obtained in this embodiment is consistent with the detection index in Example 1.

Embodiment 3

[0036] The manufacturing method of the polyester hollow micro-denier fiber provided by the present embodiment, its raw material and method steps are basically consistent with embodiment 1, but when the balanced silk cake in step g) of the present embodiment is texturized on a commonly used texturing machine, The draw ratio is 1.72, and the ratio of the surface speed of the friction disc to the speed at which the sliver leaves the false twister, that is, the D / Y ratio is 1.75.

[0037] The detection index of the polyester hollow micro-denier fiber obtained in this embodiment is consistent with the detection index in Example 1.

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Abstract

The invention discloses a manufacturing process for a hollow micro-fine terylene denier fiber. The process is characterized by comprising the following steps of: a) preparing a raw material, i.e. sliced terylene; b) drying the sliced terylene through a cystallization dryer; c) injecting the dried sliced terylene into a screw extruder to be fused; d) controlling the volume of a melt through a spinning oil metering pump and a spinning metering pump; e) spinning on a spinning machine, and after spinning, coiling the silk into silk cakes through a fully-automatic high-speed coiler; f) balancing the silk cakes in a balance room to be balanced; and g) elasticizing the silk cakes on an elasticizer. Compared with the prior art, the process realizes the fiber of which the denier per filament is less than 0.5dpf.

Description

technical field [0001] The invention belongs to the technical field of textile fibers, in particular to a method for manufacturing polyester hollow micro-denier fibers. Background technique [0002] At present, the existing polyester hollow fibers in China are staple fibers or their monofilament fineness is greater than 1.5dpf. It cannot meet the requirements of high-grade fabrics and applications in special fields, so that the application fields of this type of products are limited. Contents of the invention [0003] The object of the present invention is to provide a method for manufacturing polyester hollow micro-denier fibers that have a hollow and achieve a single fiber fineness of less than 0.5 dpf in order to solve the above-mentioned deficiencies in the prior art. [0004] In order to achieve the above object, the manufacture method of the polyester hollow micro-denier fiber designed by the present invention, the raw material adopts the polyester chip, it is chara...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G1/02D01D5/088D01D5/096D01D5/24D02J1/20
Inventor 张永国陈岳
Owner NINGBO SANBANG MICROFIBER
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