MELT-BLENDING AND SPINNING POLYMER WITH MANY SPINDLES AND DEVICE FOR MELT-BLENDING AND SPINNING POLYMER WITH MANY SPINDLES

摘要

PROBLEM TO BE SOLVED: To provide a method for melting, blending and spinning with many spindled, capable of solving the difficult homogeneous blending of a polymer with a modifying agent and the generation of irregular dyeing caused by the irregularity of the blending, when the polymer and the modifying agent component are blended and melt-spun. ;SOLUTION: This method for melting, blending and spinning with many spindles comprises feeding the flow of a melted main component polymer from a main extruder (1), joining the flow of a melted modifying agent component fed from a biaxial extruder (2) through the second measuring pump (6) and having a melt viscosity of 400-100,000 poises at a shear rate of 100-1,000sec^-1 at 280°C under vacuum of ≤50Torr to the fed main component polymer flow, immediately allowing the formed composite flow to pass through the first static: mixer element (8), successively dividing the flow into two or more branched flows, allowing the branched flows to pass through the second static mixer elements (10) disposed at the ends of the final flow routes, subsequently measuring the branchhed composite flows with the first measuring pumps (11) disposed at the ends of the flow routes, and finally spinning the composite flows through spinning packs disposed in spinnerets.;COPYRIGHT: (C)1997,JPO