| 摘要 |
PURPOSE:To produce efficiently filaments impregnated with a resin having reduced breakages by a method in which filaments impregnated with the resin in a molten resin container are twisted and drawn from an outlet nozzle which is rotated synchronously with the filament twisting and the inner surface of which is made flat or curved. CONSTITUTION:A roving 3a led from an inlet nozzle 4 to a impregnation head (molten resin container) 1, after passing through opening and impregnating rollers 6a, 6b, is drawn toward the outlet nozzle 5 through a guide roller 7 and a converging roller 8. A drawn resin impregnated roving 3b is turned by a twister to form twisting downstream from the converging roller 8. The inside of the end of the output nozzle 5 is curved to protect the roving 3a from breakage, while the output nozzle is separated from the impregnation head 1. The outlet nozzle 5 is rotated synchronously with the twisting of a resin impregnated roving 3b. In this way, fluff in the roving 3a is taken into the twisted filaments, reducing the fluff generation even when the roving 3a is drawn at a high speed. |
