Polyester color silk production process

Abstract

The invention relates to a polyester color silk production process. Polyester color silk is prepared by melting polyester chips and color master batch at high temperature, and drawing the components into silk. The polyester color silk production process comprises the following steps: precrystallizing glazed wet polyester chips in a crystallizer, putting the crystal into a solid-phase polycondensation reaction kettle for polycondensation reaction with nitrogen, feeding the tackified chips together with the color master batch which is subjected to drying and dehumidification treatment and cobalt acetate into a spinning screw rod extruder for melting, feeding the molten melt into a spinning component through a metering pump, filtering the melt inside the spinning component, spraying the melt into silk bundles through a spinneret plate at relatively high pressure, blowing cold air from a slow cooling area and a cooling accumulation chamber to cool the silk bundles, feeding the silk bundles into a drawing area, drying the silk bundles, heating to shape by using a heating roller, finally coiling to form, and packaging. Through the adoption of the process procedures, various types of colored industrial long polyester silk which is superhigh in wearing resistance, superhigh in fluorescence and superhigh in flexibility can be produced, and the colored industrial long polyester silk is widely used in multiple fields such as firefighting, braids, communication optical cables, fabrics and silk threads, and is accepted by users and the market.

Description

technical field [0001] The invention relates to the technical field of chemical fibers, in particular to a production process of polyester dyed yarn. Background technique [0002] Due to its high strength, good tensile strength, wear resistance, non-fading, and non-fading, polyester industrial dyed yarn is widely used in many industries such as textiles, braided belts, wire rope nets, communication cables, and fire hoses. Its appearance solves the problem of color difference and fading in the dyeing process of the domestic textile printing and dyeing industry due to insufficient dyeing technology or dyed products. It solves the needs of the telecommunications cable industry to fill the network fiber core with stable heat shrinkage, low price, reliable performance, and substantial cost reduction. However, conventional polyester fibers need to be dyed under high temperature and high pressure, which is costly and has certain restrictions on the color spectrum, especially for ...

AI Technical Summary

Problems solved by technology

It solves the needs of the telecommunications cable industry to fill the network fiber core with stable heat shrinkage, low price, reliable performance, and substantial cost reduction. However, conventional polyester fibers need to be dyed under high temperature and high pressure, which is costly and has certain restrictions on the color spectrum, especially for For some products that require high color fastness to sunlight, heat fastness and UV stability, the original dyeing method can no longer meet the requirements

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