We always see some yarn use conical tubes and some use round tubes, but do you know the difference between the two forms?
The equipment is different, the recycled cotton is air-spun, and the tapered one is ring-spun.
The recycled cotton factories are all open end yarns, and rarely ring spun yarns. Air-spinning is specialized in coarse-count yarn equipment, so there are 8 counts, 12 counts and 16 counts.
99% of all recycled cotton in China needs to be made by air spinning, and the supporting sleeve of the copper tube of the equipment is a round tube.
The advantage of the circular tube is that the tube is not easily deformed, and the innermost layer of the yarn can also be used up.
