Abstract: A napper fabric processing machine is provided having a dynamic zoning assembly to allow the operator to vary the amount of fabric in contact with the workers rolls. This zoning allows the napping, sanding, or sueding of a variety of products that are highly unstable or tension sensitive. This zoning also allows a seamless changeover between napping in double and single acting modes and knit goods, all with any ratio of pile to counterpile rolls.

Abstract: A napper fabric processing machine implements a number of improvements. First, the worker rolls are aluminum, reducing their weight and attachable to the cylinder using a quick release mechanism, enabling quick replacement. The worker roll are also easily serviceable and accessible from the side of the machine. Further, carding wear is monitored electrically by detecting torque generated by the motors driving the worker rolls. Finally, a tensioning system is used for the drive belts, negating the need for cylinder disassembly to replace the belts.