Processing process of high-strength high-stretchability chinlon industrial yarn

A processing technology and technology of industrial yarn, which is applied in the field of nylon yarn processing, can solve the problems of excessive wool, uneven denier, large shrinkage, etc., and achieve the effect of high draft ratio, simple and easy-to-control process, and excellent wear resistance

Inactive Publication Date: 2017-07-28
CHANGSHU POLYESTER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are also a few manufacturers producing nylon 66, there are many disadvantages such as high wool, large shrinkage, and uneven denier. Therefore, the development of nylon 66 industrial yarns with low, high strength and high elongation to replace imported products and fill the domestic technical gap will have broad prospects. Market prospects and good economic and social benefits

Method used

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Embodiment Construction

[0014] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0015] Embodiments of the invention include:

[0016] (1) Preparation of spinning stock solution: take nylon 66 copolymer as raw material, take formic acid as solution, stir with magnetic stirrer at room temperature until completely dissolved, and obtain spinning stock solution;

[0017] (2) spinning forming, introducing the spinning dope into a spinning box for spinning, wherein the temperature of the spinning box is controlled to be 310-320°C;

[0018] (3) cooling, introducing the tow ejected after spinning into the slow cooling zone for slow cooling, then cooling and forming by side blowing, and then quenching to obtain the as-spun fiber tow;

[0019] (4) Stretching and setting, the as-spun ...

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PUM

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Abstract

The invention discloses a processing process of high-strength high-stretchability chinlon industrial yarn. The processing process includes the following steps of 1, preparation of a spinning solution; 2, spinning forming; 3, cooling; 4, drafting setting, wherein drafting setting is carried out on primary cellosilk beams, three-level hot drafting is adopted for drafting, the first-level hot drafting multiple ranges from 2 to 2.1, the second-level hot drafting multiple ranges from 1.8 to 1.9, the third-level hot drafting multiple ranges from 1.5 to 1.7, and tension hot setting is adopted for setting; 5, winding. In this way, the process is simple and easy to control, and the prepared chinlon industrial yarn is high in breaking strength and low in dry heat shrinkage rate, further has the advantages of being excellent in abrasion resistance, fatigue resistance, impact resistance and the like, and can meet the requirements of safety air bag materials.

Description

technical field [0001] The invention relates to the technical field of nylon yarn processing, in particular to a processing technology of high-strength and high-stretch nylon industrial yarn. Background technique [0002] At present, as the raw material yarn of high-quality rubber skeleton materials such as automobile tires, motorcycle tires, rubber hoses, and transmission belts, nylon 66 medium and low denier industrial yarns have been widely used, and nylon 66, which is the main raw material for automotive airbags Nylon industrial yarn still relies on imports in our country. Although there are a few manufacturers producing nylon 66, there are many disadvantages such as high wool, high shrinkage, and uneven denier. Therefore, the development of nylon 66 industrial yarns with low, high strength and high elongation to replace imported products and fill the domestic technical gap will have broad prospects. Market prospects and good economic and social benefits. Contents of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/04D01D5/16D01D10/02
CPCD01D5/04D01D5/16D01D10/02D10B2331/02D10B2401/063D10B2505/124
Inventor 程建良
Owner CHANGSHU POLYESTER
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