Production method of single-cake 576f super-multihole POY (pre-oriented yarn)
A production method and polyester filament technology are applied in the field of single-cake 576f ultra-porous POY polyester filaments, which can solve the problems of unattainable product quality, low machine efficiency and high production cost, and improve production efficiency and reduce production costs. , reduce the effect of contact
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Embodiment 1
[0025] refer to figure 1 and figure 2 , the production method of single cake 576f ultra-porous POY polyester filament, is characterized in that: described production method comprises the steps:
[0026] S1. Using semi-glossy polyester melt as raw material, first pressurize the semi-glossy polyester melt to 150-200Pa through the melt delivery pipeline through the booster pump, and then send it to the melt cooler. After the light polyester melt is cooled to 275°C-278°C, it is sent into the spinning box;
[0027] S2. The melt after entering the spinning box is metered by the metering pump, and then transported to the spinning assembly in the spinning box through a thin pipe, filtered, extruded through the spinneret, and then cooled and solidified by the ring blowing device to form primary fibers;
[0028] S3. The nascent fibers in step S2 are oiled sequentially through double-channel oil nozzles, and the network device increases the cohesion, and then the winding tension is co...
Embodiment 2
[0041] In this embodiment, the conveying temperature of the semi-gloss polyester melt in the conveying pipe is 279° C., and the other implementation methods are the same as those in Embodiment 1.
[0042] The 576f ultra-porous POY polyester filament produced by the present embodiment has main technical indicators: the strength is 2.55cn / dtex, the elongation at break is 126%, and the evenness unevenness (CV% value) is 0.96%.
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