Method for fabricating fiber used for super bright high strength sewing threads

A production method and sewing thread technology, applied in fiber processing, filament/thread forming, yarn, etc., can solve the difficulty in meeting the strength requirements of high-speed sewing thread production, cannot be used to produce high-grade sewing thread, and the influence of fiber drafting performance and other problems, to achieve the effect of satisfying the strength, improving the uniformity of the air outlet, and improving the flow performance

Active Publication Date: 2009-12-09
JIANGYIN HUAHONG CHEM FIBER
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Problems solved by technology

Although the product has high strength, the luster effect of the fiber is greatly weakened after adding barium sulfate or titanium dioxide, so it cannot be used to produce high-grade sewing threads; without adding barium sul

Method used

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Embodiment Construction

[0013] The present invention relates to a production method of fiber for super-bright high-strength sewing thread. The method mainly includes the following process: after mixing and stirring the raw materials terephthalic acid and ethylene glycol, they first enter a primary esterification reactor and The secondary esterification reactor carries out the esterification reaction, and then enters the primary polycondensation reactor, the secondary polycondensation reactor and the final polycondensation reactor for the polycondensation reaction, and finally undergoes spinning, cooling, winding, silk filling, clustering, drawing, Tension heat setting, crimping, relaxation heat setting, cutting and packaging processes, to make fibers for super glossy high-strength sewing thread, characterized in that:

[0014] Diethylene glycol is added to the secondary esterification reactor, and the amount of diethylene glycol added is 1.4 to 1.6% of the final fiber mass;

[0015] The spinning temp...

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Abstract

The invention relates to a method for fabricating fiber used for super bright high strength sewing threads, comprising the following technique procedures: mixing and stirring raw materials terephthalic acid and glycol followed by entering into a primary esterification reactor and a second esterification reactor in sequence and then entering into a primary polycondensation reactor, a second polycondensation reactor and a final polycondensation reactor, and finally carrying out spinning, cooling, winding, filament holding, bundling, pulling, tension hot molding, rolling, loose hot forming, cutting and packaging to prepare the fiber used for super bright high strength sewing threads; the second esterification reactor is added with diglycol, the spinning temperature is 300-305 DEG C, the cooling adopts a tertiary rectifying blower to carry out wind cooling, wherein, the air entering into the tertiary rectifying blower is clean air which is treated by de-dusting by a micro fog water film de-dusting chamber; and the micro fog water film de-dusting chamber is provided with two rows of water fog spraying to each other. The invention do not use inorganic additive such as barium sulfate or titanium dioxide, thus not only ensuring the gloss effect of the fiber, but also satisfying the requirement on producing high speed sewing thread strength.

Description

technical field [0001] The invention relates to a fiber production method, in particular to a production method of super-luster high-strength sewing thread fibers, and belongs to the technical field of fiber production. Background technique [0002] As the sewing speed of garments continues to increase, the strength requirements for sewing threads are getting higher and higher. High-grade sewing threads use bright fibers as the best raw materials. [0003] Bright polyester staple fibers currently on the market generally contain 800-1200ppm of barium sulfate or titanium dioxide additives to improve processing performance. Although the product has high strength, the luster effect of the fiber is greatly weakened after adding barium sulfate or titanium dioxide, so it cannot be used to produce high-grade sewing threads; without adding barium sulfate or titanium dioxide, the drafting performance of the primary fiber during fiber production is greatly affected , the product is di...

Claims

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Application Information

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IPC IPC(8): D01F6/84D01D5/092D02G3/46
Inventor 胡士清张江波袁朝杜永峰郑定雄胡明欧向东
Owner JIANGYIN HUAHONG CHEM FIBER
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