JP2006219780A5 - - Google Patents

Claims (6)

A carbon fiber strand dividing method for dividing a carbon fiber strand into a plurality of carbon fiber strands having a smaller number of filaments. The carbon fiber strand is continuously run while applying tension to the continuous carbon fiber strand, and the widening treatment is arranged in the middle of running. at the same time to widen the carbon fiber strands immediately, or after widening, carbon fiber 維Su Portland widening state, cutting a portion of the carbon fiber filaments by cutting blade parallel to the rotation and travel direction of the carbon fiber strands A method for dividing a carbon fiber strand. The carbon fiber strand splitting method according to claim 1, wherein the number of filaments of the carbon fiber strand before splitting is 10,000 (10K) to 400,000 (400K). The ratio (W2 / W1) of the width (W2) of the strand on the widening jig and the width (W1) of the running strand before widening is in the range of 2 to 10. The division | segmentation method of the carbon fiber strand in any one. The carbon fiber strand dividing method according to any one of claims 1 to 3, wherein the widening jig is a cylindrical body that rotates in a running direction of the carbon fiber. The carbon fiber strand dividing method according to any one of claims 1 to 4, wherein a liquid is applied to the running carbon fiber strand immediately before the cutting step. After cutting the carbon fiber strand divided by using the dividing method according to any one of claims 1 to 5 into a discontinuous carbon fiber strand, the discontinuous carbon fiber strand is dispersed on the resin film. A method for producing a sheet molding compound, comprising a step.