A card clothing wire (1) for use on drums in cards has a root (2) and a blade (3) having an overall height of the wire (h.sub.1) of 1.5 mm to 5 mm. The blade (3) is provided with teeth (4) having a tooth depth (h.sub.6) of 0.35 mm to 1.0 mm, and having a tooth pitch (p) of 1.5 mm to 3 mm. The teeth (4) have a tip surface (7), a back surface (8) having a back angle (), and a tooth face surface. The back angle () is 40 to 20 and each tooth (4) has a first tip (5) and a second tip (6) and the tip surface (7) has at least one elevation (9).

Disclosed is a chute carding machine used in a recycled carbon fiber nonwoven fabric manufacturing system, wherein the chute carding machine includes a main chamber oriented in a vertical direction and having an inner space formed therein, a mixed raw material introduction unit is installed at the uppermost part of an inner space of the main chamber, a first carding unit is installed under the mixed raw material introduction unit, a second carding unit is installed under the first carding unit, and a web shaping unit is installed under the second carding unit.

Disclosed is a chute carding machine used in a recycled carbon fiber nonwoven fabric manufacturing system, wherein the chute carding machine includes a main chamber oriented in a vertical direction and having an inner space formed therein, a mixed raw material introduction unit is installed at the uppermost part of an inner space of the main chamber, a first carding unit is installed under the mixed raw material introduction unit, a second carding unit is installed under the first carding unit, and a web shaping unit is installed under the second carding unit.