| 摘要 |
PURPOSE:To prepare novel subject fiber having natural irregularity and soft touch similar to those of natural fibers by separately melting and extruding a polyolefin and a thermoplastic polymer having a specific melting point, forming a laminar conjugate stream, dividing and distributing the conjugate stream under a specific condition and subsequently spinning the divided and distributed polymer stream. CONSTITUTION:(A) A poly olefin and (B) a thermoplastic polymer having a melting point of >=150 deg.C are separately melted and extruded through the filtration section 8 of a sand box 1, brought into contact with each other, passed through a static mixer 5 is an A:B weight ratio of 15:85-85:15 within 5 minutes after the contact of both the polymers into a laminar conjugate stream, radially divided and distributed through the distribution passage ways 7 of a distribution plate 3 is a division number less than the number of nozzle holes and subsequently spun from many spinning nozzles of a spinneret plate 4 to provide the objective fibers wherein the conjugate shapes of single conjugate fibers are identical with each other in the longitudinal direction but are randomly different between single filaments and wherein the average value x of the contact length between the polymers A and B and the average circumferential length y of the fiber cross sections satisfy the relationship I or II (a and b are the weight% of the components A and B, respectively). |
