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Manufacturing method of melt direct spinning high-performance heterotypic polyester fiber

A manufacturing method and polyester fiber technology, which are applied in the directions of single-component polyester rayon filament, fiber processing, rayon manufacturing, etc., can solve the problems of little research on the properties of special-shaped polyester fibers and many researches on technology, and achieve The effect of solving the problem of oiling, reducing the hairiness of special-shaped silk, and improving the stretchability

Inactive Publication Date: 2013-01-09
JIANGSU CHALLEN FIBER S&T
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In recent years, many manufacturers at home and abroad have carried out research and development on special-shaped polyester fibers, but only more research on specific processes, but little research on how to improve the performance of special-shaped polyester fibers, there is a certain gap

Method used

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  • Manufacturing method of melt direct spinning high-performance heterotypic polyester fiber
  • Manufacturing method of melt direct spinning high-performance heterotypic polyester fiber
  • Manufacturing method of melt direct spinning high-performance heterotypic polyester fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The manufacture method of embodiment 1 hollow profiled fiber

[0022] At present, the high-end hollow fiber varieties on the market are of poor quality, especially the hollowness is not high, the dyeability is not good, and the processing performance is poor. Embodiment 1 has made a breakthrough and innovation especially in the selection of the spinneret spinneret holes. The concrete steps of embodiment 1 are as follows.

[0023] 1) Select the polyester melt added with pentaerythritol, and transport it to the spinning assembly through the pipeline delivery system.

[0024] 2) The polyester melt is sprayed out through the spinneret holes in the spinning assembly. The hollowness of the spinneret micropores is more than 60%, and the spinneret plate diameter is 100mm, forming multiple single filament streams.

[0025] Because the special-shaped spinneret hole method is used to make the fine flow of the melt expand through the outlet, bond and cool and solidify to form a...

Embodiment 2 10

[0039] The manufacture method of embodiment 2 cross shaped fibers

[0040] like figure 1 , figure 2 and image 3 As shown, the cross-shaped spinneret has been developed to the third generation so far, and the cross shape of the first-generation cross-shaped spinneret is a positive cross ( figure 1 ), the cross shape of the second-generation cross-shaped spinneret is two dumbbells intersecting into a cross ( figure 2 ), the cross shape of the third-generation cross-shaped spinneret is a hammer-like cross into a cross ( image 3 ). At present, most of the spinnerets of cross shaped fibers are stuck in the first generation and the second generation.

Embodiment 2

[0041] Embodiment 2 innovatively adopts the third-generation cross-shaped spinneret, that is, the cross-shaped spinneret imitating the hammer shape is used for spinning. Specific steps are as follows.

[0042] 1) Select the polyester melt added with pentaerythritol, and transport it to the spinning assembly through the pipeline delivery system.

[0043] 2) The polyester melt is sprayed out through the spinneret hole in the spinning assembly, and the selected spinneret is a hammer-shaped cross-shaped spinneret.

[0044] 3) Uniformly cool the monofilament stream through the ring blowing to form a solid monofilament.

[0045] 4) Multi-strand solid monofilaments are bundled into multifilaments through oil nozzles, and the multifilaments are formed by winding.

[0046] The cross-shaped shaped fiber produced in Example 2 has greatly improved its moisture absorption and dyeing effects through tests. The contrast effect is as follows figure 1 and shown in Table 4.

[0047] like fi...

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Abstract

The invention relates to a manufacturing method of melt direct spinning high-performance heterotypic polyester fiber. The manufacturing method comprises the following steps of: selecting a polyester melt; spinning; performing annular blow cooling; performing oil bundling on an oil nozzle; and performing wind forming, wherein the heterotypic shape can be triangular, crossed, flat, hollow and the like. The polyester melt is the polyester melt which is formed by adding pentaerythritol in polymerization reaction; the air temperature of annular blow cooling is 18-22 DEG C; and the air pressure is 30-90 Pa. The manufacturing method has the advantages of simple production process, easy operation and capability of effectively guaranteeing high performance and high heterotypic degree of a produced product. The heterotypic polyester fiber produced according to the method has the advantages of good filament uniformity, good dyeing property and superior functional effect.

Description

technical field [0001] The invention relates to the field of chemical fibers, in particular to a method for producing melt direct spinning special-shaped polyester fibers. Background technique [0002] With the rapid development of my country's economy, the textile industry has also entered a period of rapid development, and people's consumption on food, clothing, housing and transportation has also driven the development of the textile industry. Among them, the market not only has a strong demand for textiles, but also puts forward higher requirements for the quality of textiles. People's demand for textile uses and performance is developing in the direction of diversification and high quality. People expect the performance of fabrics to have excellent optical properties; good moisture absorption and breathability; light weight, moisture absorption and perspiration, easy to wash and quick dry; more comfortable and soft hand feeling; Coverage and anti-fouling effect; can im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/092D01D5/253D01D5/24D01F6/92D01F1/10
Inventor 瞿振清沈向东罗厚忠毛福坡
Owner JIANGSU CHALLEN FIBER S&T
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