A kind of porous micro-denier nylon 6 pre-oriented yarn, preparation method and equipment thereof
A technology of pre-oriented yarn and denier nylon, which is applied in the field of melt spinning of high molecular polymers. It can solve the problems of affecting wearing comfort, poor air permeability and dryness, and poor hand softness, so as to improve the uniformity of melt mixing and pressure stability. Sexuality, strong coloring, good product quality
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[0018] This embodiment provides a 75dtex / 144f porous micro-denier nylon 6 pre-oriented yarn. It is based on the production of conventional varieties of FDY equipment, including pre-crystallization, drying, screw melt extrusion devices, additive injectors are installed on the feed port of screw melt extrusion devices, spinning boxes, metering pumps, spinning components, spinning Plate spinning device, install a slow cooling heater under the spinneret, the height of the heating area is 100 ~ 120mm; install a ring blowing cooling device under the slow cooling heater; install the oiling cluster oil rack under the ring blowing cooling device , the distance away from the spinneret is 800 ± 50mm; the winding forming device includes the first and second godet rolls, a pre-netting device and a winding machine, and the pre-netting device is placed on the first godet roll and the second In the middle of the two godets.
[0019] The production process and conditions are as follows:
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