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Technique for producing coloured polyester filament yarn by melt direct spinning

A colored polyester, production technology, applied in the technical field of melt direct spinning to produce colored polyester filament, to achieve the effect of easy automatic control, easy control, and wide application range

Inactive Publication Date: 2008-05-07
SHENGHONG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the many shortcomings and unfavorable factors in the production of colored polyester filaments by slice spinning, and to provide a fabric with low cost, high output, simple process, easy control of color difference and good color fastness of the fabric. Method for producing colored polyester filament by melt direct spinning

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0012] The following is a specific embodiment of the present invention: produce black polyester filament.

[0013] The production process is as follows: polyester melt intrinsic viscosity IV=0.66dl / g, black masterbatch intrinsic viscosity IV=.50dl / g. After the masterbatch is dried in an intermittent vacuum drum at 128°C for 8 to 10 hours, the moisture content of the masterbatch is guaranteed to be less than 30ppm, and then sent to the masterbatch addition silo, and sent to the feeding port of the screw extruder by gravity; the screw extruder adopts Electric heating method, heating temperature: 270-285°C, melt and extrude the modified raw material, enter the melt delivery pipeline of the modified raw material, filter through a melt filter with a size of 15-25 mesh, remove impurities, and filter Set up a frequency conversion metering pump to ensure that the melt pressure is > 10MPa and the melt temperature is 290°C, and then measure through the frequency conversion metering pump...

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Abstract

The invention relates to a melt direct spinning technology for producing colored polyester filament, belonging to the technical field of chemical fiber production, which mainly solves the technical problem that a melt direct spinning producing method with low cost, high yield, simple technology, easy control of color difference and good color fastness of fabrics is provided. The invention is characterized in that the modified material after drying, melting, filtering and measuring are injected before the polyester melt enters a spinning box; and the modified material and the polyester melt enter the spinning box together for spinning after even mixing in a high-efficiency static mixer. The invention has the advantages of easy infiltration of master batch into fiber, good performance of the colored polyester filament product produced through the method such as high quality, good color fastness, wash resistance and abrasion resistance, simple technology, less equipment investment, easy control of material adding, convenient realization of automatic control, and avoidance of environmental pollution.

Description

technical field [0001] The invention belongs to the field of chemical fiber production methods, in particular to a production process for polyester filaments, in particular to a production and preparation method for colored polyester filaments. Background technique [0002] At present, the fiber coloring in the textile industry mainly adopts post-finishing dyeing after weaving. Ordinary polyester filaments can be dyed with disperse dyes, but only in the presence of high temperature and high pressure or carriers, which will cause great damage to the fibers, poor fastness to light, washing, perspiration, ironing, etc., and can Consumption is big, efficiency is low, pollution is serious. [0003] At this stage, domestically produced colored polyester filaments are also produced by blending spinning. The blended spinning method is to add the color masterbatch to the polymer and spin it with conventional spinning equipment to obtain colored polyester filaments. At present, ble...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D1/00D01D5/08D01F1/06
Inventor 熊辉
Owner SHENGHONG GRP CO LTD
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