This is the opening roller. Rotating at high speed (often 500 to 1,500 RPM), the taker-in tears small tufts of fiber from the feed mat. Its aggressive wire teeth perform the initial opening and remove up to 80% of trash (dirt, seed fragments, leaf particles). The taker-in transfers the fiber to the main cylinder.
Aligning the fibers into a straight, parallel orientation. carding machine
This is the largest and fastest rotating component of the machine. The tufts from the Licker-In are transferred to the Main Cylinder. This is the opening roller
Let’s follow a cotton fiber from bale to sliver: The taker-in transfers the fiber to the main cylinder
45–55% relative humidity. Too dry creates static; too wet causes web sticking.
Over the centuries, the "flat card" design was perfected, moving from stationary flat bars to the revolving flat top arrangement we see in modern cotton spinning today.