On-line liquid color master batch adding system and antimony-free polyester color yarn preparation method using same

A technology of antimony-free polyester and color masterbatch, which can be used in the spinning solution to add pigments, single-component polyester rayon, rayon manufacturing, etc. Narrow distribution range, improve polyester spinning performance, improve the effect of dispersion effect

Active Publication Date: 2021-05-07
ZHEJIANG HENGYI PETROCHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention is to overcome that the existing liquid masterbatch adding melt direct spinning polyester fiber system is designed on the basis of antimony-based catalysts, and titanium-based catalysts are mainly used in the preparation of antimony-free polyester, due to the difference in catalyst activity , when using the existing system to prepare antimony-free polyester fibers, the spinning requirements cannot be met. Provide an online liquid color masterbatch adding system and a method for preparing antimony-free polyester colored yarn using the system. By preparing antimony-free polyester Special liquid color masterbatch, and improved melt direct spinning liquid color masterbatch online adding process, effectively improve the production stability of antimony-free polyester colored yarn, and realize the production of green polyester colored yarn

Method used

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  • On-line liquid color master batch adding system and antimony-free polyester color yarn preparation method using same
  • On-line liquid color master batch adding system and antimony-free polyester color yarn preparation method using same
  • On-line liquid color master batch adding system and antimony-free polyester color yarn preparation method using same

Examples

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Embodiment 1

[0056] A preparation method for blue antimony-free polyester colored yarn, comprising the steps of:

[0057] (1) Preparation of antimony-free polyester melt: mix terephthalic acid and ethylene glycol with a mass ratio of 1:0.43 to carry out esterification reaction, the esterification reaction temperature is 245°C, and the reaction time is 5h; to the esterification reaction Add ethylene glycol mass 2% nano-titanium dioxide (based on titanium content) to the product to obtain an antimony-free polyester melt after pre-condensation reaction and final polycondensation reaction. The pre-condensation reaction temperature is 268°C and the reaction time is 2h; The reaction temperature is 280°C, and the reaction time is 2h;

[0058] (2) Preparation of liquid color masterbatch: in parts by weight, 59.9 parts of Tween 81, 40 parts of phthalocyanine blue A2R, 0.05 part of antioxidant 1010, 0.06 part of light stabilizer UV-326 and 20 ppm phosphorus stabilizer are mixed, Use a high-speed di...

Embodiment 2

[0066] A preparation method for blue antimony-free polyester colored yarn, comprising the steps of:

[0067] (1) Preparation of antimony-free polyester melt: mix terephthalic acid and ethylene glycol with a mass ratio of 1:0.43 to carry out esterification reaction, the esterification reaction temperature is 245°C, and the reaction time is 5h; to the esterification reaction Add ethylene glycol mass 2% nano-titanium dioxide (based on titanium content) to the product to obtain an antimony-free polyester melt after pre-condensation reaction and final polycondensation reaction. The pre-condensation reaction temperature is 268°C and the reaction time is 2h; The reaction temperature is 280°C, and the reaction time is 2h;

[0068] (2) Preparation of liquid color masterbatch: in parts by weight, 59.9 parts of Tween 81, 40 parts of phthalocyanine blue A2R, 0.05 part of antioxidant 1010, 0.06 part of light stabilizer UV-326 and 20 ppm phosphorus stabilizer are mixed, Use a high-speed di...

Embodiment 3

[0080] A preparation method for orange-red antimony-free polyester yarn, comprising the steps of:

[0081] (1) Preparation of antimony-free polyester melt: mix terephthalic acid and ethylene glycol with a molar ratio of 1:0.47 to carry out esterification reaction, the esterification reaction temperature is 230°C, and the reaction time is 5h; to the esterification reaction Add 0.13% of ethylene glycol mass heterogeneous titanium catalyst (based on titanium content) to the product to obtain an antimony-free polyester melt after pre-condensation reaction and final polycondensation reaction. The pre-condensation reaction temperature is 265 ° C, and the reaction time 3h; the final polycondensation reaction temperature is 273°C, and the reaction time is 3h;

[0082] (2) Preparation of liquid color masterbatch: in parts by weight, 80 parts of Tween 81, 30 parts of permanent yellow HR, 40 parts of permanent red F4R, 0.1 part of antioxidant 1010, 0.1 part of light stabilizer UV-326 and ...

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Abstract

The invention discloses an online liquid color master batch adding system and an antimony-free polyester color yarn preparation method using the same. The preparation method comprises the following steps: (1) preparing antimony-free polyester melt; (2) preparing a liquid color master batch, wherein the liquid color master batch is prepared from the following raw materials: 30-80 parts of a solvent, 20-70 parts of a pigment, 0.05-0.1 part of an antioxidant, 0.05-0.1 part of an ultraviolet stabilizer and 15-70 ppm of a phosphorus stabilizer; (3) adding the liquid color master batch online: feeding 90-95% by volume of melt into a static mixer along a polyester melt main pipeline, feeding the other antimony-free polyester melt into a polyester melt branch pipeline to be mixed with the liquid color master batch in a dynamic mixer, then entering a static mixer to be mixed with the melt entering along the main pipeline to obtain color paste melt; and (4) carrying out spinning. The production stability of the antimony-free polyester color yarn is effectively improved by preparing the liquid color master batch special for the antimony-free polyester and improving an on-line adding process of the liquid color master batch directly spun from the melt.

Description

technical field [0001] The invention relates to the technical field of chemical fiber preparation, in particular to an online liquid color masterbatch adding system and a method for preparing antimony-free polyester colored yarn using the system. Background technique [0002] Polyethylene terephthalate (PET) is currently the largest and most widely used synthetic fiber material in the world. With the improvement of people's awareness of environmental protection, various chemical fiber manufacturers have launched antimony-free polyester products one after another. At present, the antimony-free polyester products on the market are of a single type, and require post-dyeing and finishing processes. Polyester dyeing equipment requires high requirements, high energy consumption, low efficiency, poor color fastness and weather resistance of dyed fibers, high dyeing costs, and serious pollution. With the country's increasing requirements for green development, the resource and envir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/92D01F1/10D01F1/04C08G63/85D01D1/06
CPCD01F6/92D01F1/10D01F1/04C08G63/85D01D1/065
Inventor 朱莎莎王松林王文李院院胥荣威
Owner ZHEJIANG HENGYI PETROCHEM
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