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Five-hole hollow polyester filament yarn as well as preparation method and spinneret plate for preparation of five-hole hollow polyester filament yarn

A polyester filament and spinneret technology, which is applied in hollow filament manufacturing, rayon manufacturing, filament/thread forming, etc., can solve the problems of polyester filament thermal insulation and limited moisture absorption and perspiration functions, and improve moisture absorption. The effect of poor perspiration performance, improved bulkiness, good thermal insulation

Pending Publication Date: 2022-03-11
新凤鸣集团股份有限公司 +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cavity structure improves the heat retention and moisture absorption and perspiration function of the filament because of the function of storing still air, but the warmth retention and moisture absorption and perspiration function of the polyester filament with a single cavity pipe are limited, which cannot meet the needs of users. need

Method used

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  • Five-hole hollow polyester filament yarn as well as preparation method and spinneret plate for preparation of five-hole hollow polyester filament yarn
  • Five-hole hollow polyester filament yarn as well as preparation method and spinneret plate for preparation of five-hole hollow polyester filament yarn

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Such as figure 1 As shown, the present invention discloses a five-hole hollow polyester filament, which includes a filament body, and the cross section of the filament body 1 is arranged in a ring shape on the periphery with four first through holes 2, and in the four first through holes 2 A second through hole 3 is formed in the middle filament body.

[0029] The first through holes 2 are all circular, and the second through holes 3 are non-circular.

Embodiment 2

[0031] Such as figure 2 As shown, the present invention discloses a spinneret for the preparation of five-hole hollow polyester filaments, including a spinneret body 5 and spinneret holes arranged on the spinneret body 5, and the shape of the spinneret holes is: four groups The semicircular holes 4 are evenly spaced and formed on the same circumference; there are two semicircular holes 4 in each group, and the openings are opposite mirror images, and the two semicircular holes 4 in each group are spaced apart from each other.

[0032] The inner diameter R1 of the four groups of semicircular holes 4 is 0.225mm, the outer diameter R2 is 0.29mm, and the distance D1 between the two semicircular holes 4 of the same group is 0.08mm; the center of the four groups of semicircular holes 4 Located on the four corners of a square, and the distance D2 between the centers of the two groups of semi-circular holes 4 at the opposite corners is 0.96mm; the diameter of the spinneret is 104mm, ...

Embodiment 3

[0034] The invention also discloses a method for preparing a five-hole hollow polyester filament, which comprises the following steps:

[0035] The intrinsic viscosity of PET is 0.62-0.64dL / g, and the content of terminal carboxyl groups is 48-54mol / t.

[0036] 1. The melt of the above-mentioned PET is used, and after being metered by a metering pump, it is sprayed out through a spinneret to form a primary growth filament;

[0037] 2. The primary filaments are cooled, oiled, stretched and rolled into silk cakes.

[0038] The temperature of the PET melt is 285-290°C; the pressure after the metering pump is 14-16MPa; the packaging process uses a WingsPOY winding machine with a winding speed of 2700-2900m / min and a stroke of 125mm;

[0039] The winding angle is dynamically adjusted through program control to avoid overlapping wires, and the following conditions are met:

[0040] α=-8.44×10 -5 ×(d-275) 2 +6.5

[0041] Among them, α is the winding angle, taking 1 decimal place,...

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Abstract

The invention relates to the technical field of filament manufacturing, in particular to a five-hole hollow polyester filament which comprises a filament body, four first through holes are annularly formed in the periphery of the section of the filament body, and a second through hole is formed among the four first through holes. The invention further discloses a preparation method of the five-hole hollow polyester filament yarn and a spinneret plate for preparation. According to the five-hole hollow polyester filament yarn as well as the preparation method and the spinneret plate for preparation of the five-hole hollow polyester filament yarn, the obtained polyester filament yarn has a plurality of cavity structures, and more still air is stored, so that the polyester filament yarn has a good warm-keeping effect; the problem that the moisture absorption and sweat releasing performance of the polyester filament is poor is solved, and meanwhile the bulkiness of the polyester filament is further improved through the multi-cavity structure.

Description

technical field [0001] The invention relates to the technical field of filament manufacture, in particular to a five-hole hollow polyester filament, a preparation method thereof, and a spinneret for preparation. Background technique [0002] Polyester filament is currently the most widely used synthetic filament in the apparel industry, and is favored by users because of its excellent physical and chemical properties. With the development of science and technology and the improvement of people's living standards, people's requirements for the comfort and functionality of textiles are also gradually increasing. Hollow polyester filaments have attracted more and more attention from researchers and consumers because of their warmth retention, light weight, and fluffy properties. [0003] Hollow polyester filament is a special-shaped polyester filament, which is characterized by a hollow structure in the cross section along the axial direction. The cavity structure improves th...

Claims

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Application Information

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IPC IPC(8): D01D5/253D01D5/24D01F6/92D01D7/00
CPCD01D5/253D01D5/24D01F6/92D01D7/00
Inventor 庄耀中母情源屠晓强崔利赵春财钱卫根施中其张雪丰
Owner 新凤鸣集团股份有限公司