METHOD FOR PRODUCING CARBON FIBER AGGREGATE, AND METHOD FOR PRODUCING CARBON FIBER-REINFORCED PLAST

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Provided is a method for producing a carbon fiber aggregate in which an edge material of a carbon fiber base material composed of carbon fibers is cut to obtain a cut piece, and the cut piece is made into a web and/or made into a nonwoven fabric to thereby obtain a carbon fiber aggregate. Also provided is a method for producing a carbon fiber aggregate in which the cut piece is carded and/or punched to thereby obtain the carbon fiber aggregate. Further provided is a method for producing a carbon fiber-reinforced plastic in which a matrix resin is impregnated into the carbon fiber aggregate produced by the method of the present invention. The present invention can provide a method for producing a carbon fiber aggregate and a carbon fiber-reinforced plastic, the method being adapted to recycle, into a carbon fiber-reinforced plastic (CFRP) having high mechanical properties, the edge material of the carbon fiber base material generated in the process for producing the CFRP.