| 摘要 |
PURPOSE:To prevent the generation of a fiber block immediately before an outlet nozzle in manufacturing a filament reinforced strand by a process in which paralleled filaments impregnated with a resin are drawn from the outlet nozzle by a method in which resin impregnated filaments are twisted and drawn, plasticized by re-heating, and straightened by dissolving twisting. CONSTITUTION:A roving 3a led from an inlet nozzle 4 into an impregnation head 1, after passing through opening and impregnating rollers 6a, 6b, is drawn toward an outlet nozzle 5 through a guide roller 7 and a converging roller 8. A resin impregnated roving 3b is turned by a twister so that the roving downstream from the converging roller 8 is twisted. Accordingly, fluff generated by the friction in the impregnation head 1 or at the outlet nozzle 5, which is wound into the twisted roving, is drawn outside the outlet nozzle 5. The filament strand obtained, after being plasticized by re-heating, is turned in the opposite direction to dissolve twisting so that the strand with the straightened filaments embedded is obtained. |
