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Production method of normal-temperature normal-pressure cationic dyeable fine-denier hollow polyester staple fiber

A cationic polyester, production method technology, applied in fiber processing, hollow filament manufacturing, fiber chemical characteristics, etc., can solve problems such as unseen production methods, and achieve high closing success rate, excellent breaking strength, and reduced modulus. Effect

Inactive Publication Date: 2013-03-27
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, in the domestic and foreign markets, the thinner hollow polyester staple fiber products of fine denier are produced by Shanghai Lianji Chemical Fiber Co., Ltd. and companies in Japan and the United States with a specification of 1.56dtex, and there is no product produced by ECDP chips. Reports on products and related production methods

Method used

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  • Production method of normal-temperature normal-pressure cationic dyeable fine-denier hollow polyester staple fiber
  • Production method of normal-temperature normal-pressure cationic dyeable fine-denier hollow polyester staple fiber
  • Production method of normal-temperature normal-pressure cationic dyeable fine-denier hollow polyester staple fiber

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Embodiment Construction

[0026] The present invention adopts specific fine-denier hollow special-purpose spinneret, and through the optimization and adjustment of the production process on the conventional slicing and spinning polyester staple fiber production line, the normal temperature and pressure cationic dyeable fine-denier hollow polyester with specifications of 1.3dtex to 2.5dtex is produced Short fibers have achieved the similar performance of cashmere products and filled the blank at home and abroad.

[0027] First of all, the present invention adopts an innovatively designed spinneret, and the spinneret hole is in the shape of a single-opening "C" ring, such as figure 1 As shown, while effectively improving the closing success rate of the cross-section of the fiber, the fiber is guaranteed to have a high degree of hollowness.

[0028] The invention achieves the purpose of stably producing normal temperature and pressure cationic dyeable fine denier hollow polyester staple fibers with specif...

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Abstract

The invention provides a production method of normal-temperature normal-pressure cationic dyeable fine-denier hollow polyester staple fibers. A C-shaped spinneret plate is used for producing 1.0-2.5dtex fine-denier hollow polyester staple fibers under conditions that the spinning temperature is 270-288DEG C, the wind ring-blowing speed is 0.8-1.3m / s, the wind temperature is 17-23DEG C and the first break draft multiple is 2.5-3.8. The production method of normal-temperature normal-pressure cationic dyeable fine-denier hollow polyester staple fibers has the advantages that the production process is stable, the product closing success rate is high, the dying performance of the normal-temperature normal-pressure cationic polyester fibers is guaranteed to be excellent, and the fibers have physical properties such as higher hollowness degree, excellent breaking strength and excellent breaking elongation; and since the fibers are very fine, the modulus is further decreased, and the flexibility of the fibers and the softness of the produced products are effectively improved.

Description

technical field [0001] The invention relates to the production and processing of polyester staple fibers, in particular to a method for producing fine-denier hollow polyester staple fibers from cationic polyester chips at normal temperature and pressure, and belongs to the technical field of synthetic fiber production. Background technique [0002] Cashmere is the fluff combed from goats. Among them, the fluff produced by cashmere goats is of the best quality. Every spring when the goats shed their hair, a special iron comb is used to grab the fluff from the goat body, wash it and comb it. Cashmere is obtained after removing coarse hair, dead hair and dander. Cashmere has irregular thin and deep curls, composed of scale layer and cortex layer, without medulla layer, scale density is about 60-70 / mm, fiber cross-section is approximately circular, and the diameter is thinner than fine wool , the average fineness is mostly 14-16um, and the length is generally 35-45mm. It is thi...

Claims

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Application Information

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IPC IPC(8): D01D5/092D01D5/24D01D5/253
Inventor 薛斌孙华平陆明英朱福和陈培史利梅吴旭华谢宏王卫东陈来宏
Owner CHINA PETROLEUM & CHEM CORP
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