The Fibre Foundation: Ring vs. Rotor Spinning Discuss the fibre characteristics requirements for ring and rotor spinning technologies. questionsoftextileblog know textile The economic success of a spinning mill depends on matching raw material properties to the chosen technology. Ring and Rotor systems operate on fundamentally different mechanical principles, dictating vastly different fibre requirements for 100% efficiency and quality. The Fundamental Mechanic Ring Spinning Relies on roller control and tensile strength. Twist flows from outside-in. Rotor (Open-End) Spinning Relies on centrifugal force and friction. Twist flows from inside-out. Key Fibre Characteristic Requirements 1. Fineness (Micronaire) Fineness determines how many fibres fit into the yarn cross-section, which dictat...