A kind of production method of colored superfine denier polyester pre-oriented yarn

A technology of ultra-fine denier polyester and pre-oriented yarns, which is applied in the melting of filament raw materials, the bundling of newly extruded yarns, and the melt spinning method, which can solve the problems of large energy consumption, energy consumption, and pollution, and achieve Full color range, high product quality, good air permeability and warmth retention effect

Active Publication Date: 2016-04-27
浙江聚元新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an energy-saving and environment-friendly product for solving the defects that the polyester filament produced in the existing polyester filament production needs to be dyed after post-treatment, which consumes a lot of energy and pollution, and is cooled by side air blowing, which consumes a lot of energy. , Production method of colored ultrafine denier polyester pre-oriented yarn with improved production efficiency

Method used

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  • A kind of production method of colored superfine denier polyester pre-oriented yarn

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Embodiment 1

[0033] A kind of production method of colored superfine denier polyester pre-oriented yarn, described production method comprises the steps:

[0034] a) Pre-crystallize and dry polyethylene terephthalate and polyester color masterbatch respectively; among them, the pre-crystallization and drying temperature of polyethylene terephthalate are both 175°C, and the moisture content after drying is 25ppm , the pre-crystallization time is 20min, and the drying time is 6h; the pre-crystallization and drying temperature of polyester color masterbatch are both 100°C, the moisture content after drying is 100ppm, the pre-crystallization time is 10min, and the drying time is 4h; polyethylene terephthalic acid The intrinsic viscosity of ethylene glycol is 0.6dl / g; 5kg of polyester color masterbatch is used for every 100kg of polyethylene terephthalate;

[0035] b) Melt the polyethylene terephthalate and polyester color masterbatch obtained in step a) in a screw extruder at a temperature of ...

Embodiment 2

[0040]A kind of production method of colored superfine denier polyester pre-oriented yarn, described production method comprises the steps:

[0041] a) Pre-crystallize and dry polyethylene terephthalate and polyester color masterbatch respectively; among them, the pre-crystallization and drying temperature of polyethylene terephthalate are both 180°C, and the moisture content after drying is 20ppm , the pre-crystallization time is 30min, and the drying time is 7h; the pre-crystallization and drying temperature of polyester color masterbatch is 110°C, the moisture content after drying is 90ppm, the pre-crystallization time is 15min, and the drying time is 5h; Polyterephthalic acid The intrinsic viscosity of ethylene glycol is 0.62dl / g; 6kg of polyester color masterbatch is used for every 100kg of polyethylene terephthalate;

[0042] b) Melt the polyethylene terephthalate and polyester color masterbatch obtained in step a) in a screw extruder at a temperature of 280°C to obtain ...

Embodiment 3

[0047] A kind of production method of colored superfine denier polyester pre-oriented yarn, described production method comprises the steps:

[0048] a) Pre-crystallize and dry polyethylene terephthalate and polyester color masterbatch respectively; among them, the pre-crystallization and drying temperature of polyethylene terephthalate are both 185°C, and the moisture content after drying is 15ppm , the pre-crystallization time is 40min, and the drying time is 8h; the pre-crystallization and drying temperature of polyester color masterbatch are both 120°C, the moisture content after drying is 60ppm, the pre-crystallization time is 20min, and the drying time is 6h; polyethylene terephthalic acid The intrinsic viscosity of ethylene glycol is 0.65dl / g; 8kg of polyester color masterbatch is used for every 100kg of polyethylene terephthalate;

[0049] b) Melt the polyethylene terephthalate and polyester color masterbatch obtained in step a) in a screw extruder at a temperature of ...

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Abstract

The invention relates to a method for producing colorful superfine denier terylene pre-oriented yarns. The method comprises steps of respectively crystallizing and drying polyethylene terephthalate and colorful terylene master batches, then melting, increasing the network degree through pre-filtering, fine filtering, cross air blow cooling, oiling and yarn guiding, and winding the yarns to be shaped. According to the method, the colorful terylene master batches and the polyethylene terephthalate are combined together, a subsequent dyeing step is dispensed, and required electric energy consumption and discharge wastewater in a dyeing process are reduced, so that an environment-friendly purpose is realized, and national energy-saving and emission-reduction requirements are satisfied; and the produced superfine denier terylene pre-oriented yarns have good soft handfeel and waxy feeling, and are softer than wool and silk, textiles which are woven with the superfine denier terylene pre-oriented yarns have good air permeability and warmness-keeping performance, and the superfine denier terylene pre-oriented yarns are mainly used for top-grade fabrics.

Description

technical field [0001] The invention belongs to the technical field of production of synthetic fiber fabrics, relates to a polyester pre-oriented yarn, in particular to a production method of colored superfine-denier polyester pre-oriented yarn which is energy-saving, environment-friendly and improves production efficiency. Background technique [0002] With the continuous improvement of the quality of life of human beings, the high-quality requirements of plied fiber fabrics have been raised to an important position. Universities, research institutes and production companies have invested a lot of energy in research and development. Fiber coloring in the textile industry mainly adopts weaving, dyeing, finishing and dyeing. The production of colored fabrics goes through spinning (yarn), high-temperature and high-pressure dyeing, warping and weaving, finishing, or spinning, warping and weaving, pre-dyeing treatment, high-temperature and high-pressure dyeing, and finishing. T...

Claims

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Application Information

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IPC IPC(8): D01D5/08D01D1/04D01D1/10D01D5/088D01D7/00D01F6/92
Inventor 贺小游刘维国刘俊
Owner 浙江聚元新材料股份有限公司
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