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Direct-spun black yarn FDY processing process based on master batch injection melt

A processing technology and melt technology, which is applied in the field of direct spinning black silk FDY processing technology based on masterbatch injection melt, can solve the problems of spinning yarn drifting, large chromaticity difference, uneven melt mixing, etc., and achieve mixing Uniformity, ensuring black uniformity, and overcoming chromaticity differences

Active Publication Date: 2012-10-10
福建百宏聚纤科技实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] The object of the present invention is to provide a direct-spun black silk FDY processing technology based on masterbatch injection melt for related improvement process steps and optimization of related best parameters, so as to obtain polyester low-stretch yarn with better quality and no need for dyeing, and can be used on a large scale The FDY black silk produced; solves the technical defects in the prior art such as spinning yarn drifting, many broken ends, easy to produce spider webs, large chromaticity difference when spinning stops, and uneven melt mixing, etc., and achieves saving Subsequent dyeing and other post-processing technology, energy saving, can reduce the transportation of white slices, melting process, save a lot of energy, can realize large-scale production, no broken yarn, low elasticity and better quality. The beneficial advantages of FDY black yarn

Method used

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Examples

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Embodiment 1

[0054] A direct-spun black silk FDY processing technology based on masterbatch injection melt, characterized in that the processing technology uses the combination of black masterbatch injection and melt direct spinning to obtain direct-spun black silk FDY.

[0055]

Embodiment 2

[0057] A direct-spun black silk FDY processing technology based on masterbatch injection melt, characterized in that the processing technology uses the combination of black masterbatch injection and melt direct spinning to obtain direct-spun black silk FDY; The specific processing steps of the direct spinning black silk FDY processing technology of the body are as follows:

[0058] 1) Preparation of PET melt: The raw materials PTA, MEG and catalyst solution are continuously fed into the slurry preparation tank according to the specified ratio, and are fully mixed by a specially designed agitator to prepare a slurry with a constant molar ratio (MEG / PTA) The material is continuously sent to the esterification reactor through the slurry delivery pump.

[0059] The esterification reaction system is equipped with two esterification reactors. The esterification rate in the first esterification reactor can reach 91%; after the second esterification reactor, the esterification rate i...

Embodiment 3

[0070] A direct-spun black silk FDY processing technology based on masterbatch injection melt, characterized in that the processing technology uses the combination of black masterbatch injection and melt direct spinning to obtain direct-spun black silk FDY; The specific processing steps of the direct spinning black silk FDY processing technology of the body are as follows:

[0071] 1) Preparation of PET melt: The raw materials PTA, MEG and catalyst solution are continuously fed into the slurry preparation tank according to the specified ratio, and are fully mixed by a specially designed agitator to prepare a slurry with a constant molar ratio (MEG / PTA) The material is continuously sent to the esterification reactor through the slurry delivery pump.

[0072] The esterification reaction system is equipped with two esterification reactors. The esterification rate in the first esterification reactor can reach 91%; after the second esterification reactor, the esterification rate i...

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Abstract

The invention relates to a direct-spun black yarn FDY (full drawn yarn) processing process based on master batch injection melt, which sequentially comprises the steps of: PET (polyethylene terephthalate) melt preparation, black master batch preparation, sufficient mixing of melt and spinning. According to the invention, the technical defects in the prior art of yarn floating during spinning, many broken ends, easiness in web yarn generation, large chroma difference generated while stopping spinning, nonuniform melt blending and the like are solved, and the benefits of saving subsequent dyeing and other aftertreatment processes, saving energy, reducing white slab transportation and fusion processes, saving a great deal energy, and realizing large-scale production of FDY black yarn with no filament breakage, low elasticity and excellent quality are achieved.

Description

technical field [0001] The invention belongs to the technical field of chemical fiber processing, in particular to the field of processing of direct-spun black silk FDY, in particular to a processing technology of direct-spun black silk FDY based on masterbatch injection melt. Background technique [0002] Polyester fine denier FDY black silk is a special modified fiber. This variety is made by adding color masterbatch on the basis of the original FDY white silk, and processed by special technology, which can save the dyeing process. At present, the output of the chemical fiber market has risen sharply, resulting in an increasingly prominent situation of oversupply of polyester products. In addition, the country's requirements for environmental protection are getting higher and higher, and the competition for chemical fiber products in the domestic sales market is becoming more and more fierce. To achieve further development under the current situation, it is necessary to d...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D01D5/088D01D1/00D01D5/16D01D7/00D01F6/92D01F1/10
Inventor 侯向东
Owner 福建百宏聚纤科技实业有限公司
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