Patent ID: 8745826

Claim:
A wire profile for card clothing, comprising a rib portion and a plurality of teeth over a length of said rib portion, wherein said teeth are sloped with a hack slope representing a backbone of said teeth and a front slope representing the side in direct contact with fibre, said hack slope having a tangent forming a back angle with the rib portion, said front slope being divided into at least two segments comprising a tip segment and an undercut segment, wherein said tip segment converges with the back slope to form a tip of said teeth and said tip segment is configured to penetrate between fibres, said tip segment having a tangent forming a tip angle with the rib portion, wherein said tip angle ranges between 40° and 135°, wherein said undercut segment is configured to retain the fibres, said undercut segment having a tangent forming an undercut angle with the rib portion, wherein the undercut angle is at each point in the undercut segment greater than a maximum of the hack angle and smaller than a smallest value of the tip angle in order to allow rotary punching.