A kind of production technology of wear-resistant pa6 bulky yarn
A production process and technology of bulked yarn, applied in the field of preparation of wear-resistant PA6 bulked yarn, can solve the problems of neglecting the practicability, durability and product life of the carpet, decreasing the overall effect of the carpet, increasing the commercial cost, etc. Covering and fluffing performance, beautiful gloss, effect to increase production cost
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[0031] 1. The solid PA6 slices with a relative viscosity of 2.60-2.90 are extruded and melted in a screw extruder at a temperature of 250-280 ° C to become a molten spinning melt. The melt pressure at the screw outlet is controlled at 70-150 bar, and the temperature 250-265°C range. Then, driven by the rotation of the screw, the melt is transported to the spinning box at a pressure of 50-100bar into the metering pump installed in the spinning box for precise metering, in order to meter and output the amount of melt required for spinning 1800D products, The specification of the metering pump used is 20CC, and the speed is 23.8-24.8 rpm. The melt after passing through the metering pump enters the spinning assembly to form a pressure of 80-200 bar and a temperature of 260-300 °C to achieve high-pressure and high-temperature spinning;
[0032] 2. The spinneret installed in the spinning assembly is the core component of melt spinning. The parameter design of the spinneret is an im...
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