Preparation method for FDY ultra-fine nylon fibers

A technology of fiber and nylon, which is applied in the field of FDY ultrafine denier fiber preparation, can solve the problems of thick and thin filaments, uneven elasticity, wool and other problems of finished silk, and achieve high-quality results

Inactive Publication Date: 2015-02-04
FUJIAN JINGFENG TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the current spinning industry, during the production of FDY ultra-fine denier fibers, when the filament bundle is ejected from the spinning component outlet, the temperature drops too fast, resulting in problems such as thick and thin filaments, wool filaments, and uneven elasticity in the finished filament

Method used

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  • Preparation method for FDY ultra-fine nylon fibers
  • Preparation method for FDY ultra-fine nylon fibers
  • Preparation method for FDY ultra-fine nylon fibers

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Embodiment Construction

[0020] In order to describe the technical content, achieved goals and effects of the present invention in detail, the following descriptions will be made in conjunction with the embodiments and accompanying drawings.

[0021] The most critical idea of ​​the present invention is: the preparation method of the FDY ultra-fine denier fiber of the present invention controls the temperature at the outlet of the spinning assembly at 200-250°C, so that the heat will not be enriched, and the temperature will not be increased beyond the controlled temperature. If the drop is too fast, the FDY superfine denier fiber produced has elasticity, and the product has clear lines and higher quality.

[0022] Please refer to figure 1 , figure 2 and image 3 , a production process of FDY superfine denier, comprising the steps of:

[0023] (1) Nylon is fed into the screw extruder through the nylon inlet to control the nylon inlet temperature.

[0024] (2) Nylon is extruded by a screw extruder,...

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Abstract

The invention relates to the field of spinning industry and in particular relates to a preparation method for FDY ultra-fine nylon fibers. The method comprises the following steps: when nylon is heated for melting and then is sprayed out by a filament outlet of a spinning assembly of a spinning device, the filament outlet of the spinning assembly of the spinning device is within 10cm, and the temperature is controlled to be 200-250 DEG C, so that the filament bundle is cooled uniformly. According to the method, the temperature of the filament outlet of the spinning assembly of the spinning device is controlled to be 200-250 DEG C, so that heat cannot be enriched, the temperature control range is exceeded, the prepared FDY ultra-fine nylon fibers are relatively highly elastic, and prepared products have the clear textures and can be widely applied to weaving fabrics of underwear and elasticity-reinforced silk stockings.

Description

technical field [0001] The invention relates to the field of spinning industry, in particular to a preparation method of FDY superfine denier fiber. Background technique [0002] Generally speaking, the polymer materials that can be spun include nylon (polyamide), polypropylene (polypropylene), polyester (polyethylene terephthalate) and acrylic (polyacrylonitrile). These materials can be spun to form filaments for use in the textile industry. Melt spinning is a commonly used spinning method, and fiber filaments suitable for spinning can be obtained by melt spinning. Usually, the fiber filaments obtained by using the melt spinning method can reach a few deniers (fineness, and the products obtained by weaving and weaving with such fineness fiber filaments, such as clothing fabrics, etc., have many advantages, so there is room for market application. broad. [0003] Yet along with the raising of people's living standard, also more and more higher to the requirement of textil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/08D01D5/084D01D5/088
CPCD01D5/08D01D5/084D01D5/088
Inventor 吴华新王邓伟付重亮张广要
Owner FUJIAN JINGFENG TECH
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