Simplex | Objects and operations of simplex Simplex: In yarn manufacturing system, simplex frame is situated after the comber. The sliver which is produced from the comber that is thicker and it is not suitable to feed into the ring frame directly to produce yarn. For this reason, drawn sliver is treated before entering into the ring frame. The commonly used simplex machine for cotton is flyer frame or speed frame. There are three basic steps in the operation of the roving frame – drafting, twisting and winding. These three basic steps are exactly the same as the basic steps required in spinning.
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