Spinning Method Based on the Two-for-One Twisting Principle

c2015 The Korean Fiber Society Abstract: This research reports the development of a new yarn formation technology that operates on the two-for-one twisting principle, which enhances the twisting performance during the yarn formation process and maintains the standard qualities of the ring spun yarn. The spinning system comprises three components: first twisting component, second twisting component, and bobbin building component. Each operation unit is designed, manufactured, and assembled into a total system. To test the operational feasibility of the new system, two different colored filaments are delivered from the front roller of the draft bank and first twisted by means of a flyer, and second twisted by the take-up guide. The bobbin building motion is also tested. The results indicate that the new two-for-one spinning system works very well. The first and second twists are realized in the corresponding working zone. The bobbin shape is built, whereas the flyer driving torque is transferred to the bobbin. The repelling force of the magnets effectively actuated the take-up guide vertically.