To provide a carding device that can surely pull apart a web from a roller comb and send it to the following step without functional deterioration in the roller comb.

Doffer rollers 2 are installed side by side near a main cylinder 1 and roller combs 3 are set side by side near the doffer rollers. In addition, peeling rollers 4 are installed side by side near the roller combs 3, and a conveyer 5 is set near and below-each peeling roller 4. A cleaning brush 7 is mounted in order to clean each roller comb 3, and an air-jetting nozzle 6 is set so that the jetted air may flow between the roller comb 3 and the peeling roller 4 to clean the cleaning brush 7 for cleaning the roller comb 3.