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
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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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