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Production process of color functional industrial polyester fiber

A technology of polyester industrial yarn and production process, which is applied in rayon manufacturing, spinning solution preparation, fire-retardant and flame-retardant filament manufacturing, etc. Good physical properties, avoid secondary drying, improve flexibility

Active Publication Date: 2007-08-22
ZHEJIANG GUXIANDAO POLYESTER DOPE DYED YARN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process has the following disadvantages: (1), high-viscosity slices need to be dried twice, which wastes energy, and it is difficult to ensure the uniformity of mixing with masterbatch; (2), masterbatch and conventional high-viscosity slices are processed by the same screw Melting, the masterbatch is heated for a long time, and the degradation is serious, which affects the physical properties of industrial yarns. The best breaking strength of polyester industrial yarns produced by this process can only reach 7.5CN / dtex, while the breaking strength of conventional polyester industrial yarns can generally be Reach 8.1CN / dtex; (3) When the product is changed, due to the large amount of transitional mixed melt, a large amount of useless transitional products will be produced, and the unit cost will increase greatly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Example 1: Production of black polyester industrial yarn using black masterbatch

[0016] The black masterbatch coming out of the masterbatch hopper is dried at 150°C for 10 hours in a spiral stirring dryer, and then melted in a small screw at a temperature of 285°C for 5 minutes. The melting temperature of the masterbatch is controlled at 285°C. The conventional high-viscosity slices prepared in the solid-state polymerization reactor enter the main screw for melting at a temperature of 302°C. The melt temperature of the high-viscosity slices is controlled at 300°C, the pressure of the measuring head is 150bar, and the masterbatch melt is injected into the spinning box through a melt pump. Before the spinning metering pump, uniformly mix the conventional high-viscosity chip melt in the static mixer before the spinning metering pump, the injection ratio of the melt pump is 3%, the injection pressure is 130bar, and the temperature in the static mixer is 300°C , The reside...

Embodiment 2

[0017] Example 2: Using red masterbatch to produce red polyester industrial yarn

[0018] The red masterbatch coming out of the masterbatch hopper is dried at 130°C for 12 hours in a spiral stirring dryer, and then melted in a small screw at a temperature of 290°C for 4 minutes. The temperature of the masterbatch melt is controlled at 290°C. The conventional high-viscosity chip prepared from the solid-state polymerization reactor enters the main screw for melting, the temperature is 302°C, the temperature of the high-viscosity chip melt is controlled at 302°C, the pressure of the measuring head is 150bar, and the masterbatch melt is injected into the spinning box through the melt pump Before the spinning metering pump, uniformly mix the conventional high-viscosity chip melt in the static mixer before the spinning metering pump, the injection ratio of the melt pump is 3%, the injection pressure is 130bar, and the temperature in the static mixer is 300°C , the mixing time is 0.1...

Embodiment 3

[0019] Example 3: Production of flame-retardant polyester industrial yarn by using flame-retardant masterbatch

[0020] The flame-retardant masterbatch coming out of the masterbatch hopper is dried at 160°C for 8 hours in a spiral agitation dryer, and then melted in a small screw at a temperature of 275°C for 6 minutes, and the temperature of the masterbatch melt is controlled at 285°C , The conventional high-viscosity chip prepared from the solid-state polymerization reactor enters the main screw for melting, the temperature is 302°C, the melt temperature of the high-viscosity chip is 301°C, the pressure of the measuring head is 150bar, and the masterbatch melt is injected into the spinning box through the melt pump Before the spinning metering pump, uniformly mix the conventional high-viscosity chip melt in the static mixer before the spinning metering pump, the injection ratio of the melt pump is 3%, the injection pressure is 130bar, and the temperature in the static mixer i...

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Abstract

The production process of color functional industrial polyester fiber includes the following steps: 1. drying agglomerate and smelting the agglomerate to form agglomerate melt; 2 pumping the agglomerate melt into the spinning metering pump and mixing the agglomerate melt with conventional high viscosity melt prepared in the static mixer; and 3. conveying the mixture melt to a spinning assembly and spinning. The process injects the agglomerate melt to lower its temperature and to decrease its degradation, so as to maintain excellent physical performance during spinning.

Description

technical field [0001] The invention relates to a production process of colored and functional polyester industrial yarns, which is applied to the modification of polyester industrial yarns. More specifically, it refers to the production of colored polyester industrial yarns and other functional polyester yarns such as flame retardant, Antistatic, antibacterial, anti-ultraviolet and other polyester industrial yarns belong to the field of textile technology. Background technique [0002] Compared with ordinary civilian fibers, polyester (PET) industrial yarn is characterized by high strength, low heat shrinkage, high modulus and other excellent physical properties, so it has a wider range of industrial applications. By modifying conventional polyester industrial yarns, colored polyester industrial yarns and other functional polyester industrial yarns such as flame retardant, antistatic, antibacterial, and UV resistant have also been developed. The existing colored or function...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D1/02D01D5/098D01D5/10D01F1/07D01F1/09D01F1/10D01F6/62
Inventor 王建辉王祖宏张朔庞劲风卜小军刘荣波
Owner ZHEJIANG GUXIANDAO POLYESTER DOPE DYED YARN CO LTD
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