COLORED POLYVINYLIDENE FLUORIDE-BASED MONOFILAMENT AND METHOD FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To obtain a monofilament capable of maintaining characteristics of a fishing line composed of a polyvinylidene fluoride-based monofilament, not bringing about a recognizable change in color of a colorant caused by generation of hydrofluoric acid resulting from decomposition of the resin during spinning, colored in a clear fluorescent color, forming a fishing line having excellent transparency and visibility and to provide a method for producing the same. SOLUTION: This monofilament comprises a polyvinylidene fluoride resin composition containing preferably 0.001-0.5 pt.wt. of a perylene-based fluorescent dye based on 100 pts.wt. of a polyvinylidene fluoride resin. This method for producing the monofilament comprises spinning the polyvinylidene fluoride resin composition at <=300 deg.C extrusion set temperature for <=60 minutes extrusion retention time. The filament is used for a fishing line.