Spinning Techniques for Staple Fibres at the ITMA 2003

Abstract

An overview of the most important technological novelties in the field of spinning staple fibres showcased at the ITMA 2003 is given. The Uniplex technology of manufacturing staple yarn from man-made fibres is a great novelty. Production outputs of all spinning machines are considerably increased. Technological parameters are controlled and optimized by different technical improvements. Particular attention is paid to the area around the carding cylinder and opening roller by increasing the working surface and by setting precisely made aluminum profiles under the carding cylinder and doffer. The drives of the ring rail, control ring and yarn guide have independent servomotors and are synchronized with the delivery rolls of the draw box. Thereby the geometry of the ring spinning is traced in order to reduce the level of spinning tension and its variation. Compression spinning using air gains a competition by introducing RoCoS compression spinning based on the magnetic-mechanical principle. Machine flexibility is a very conspicuous trend. yarns of a different degree of hairiness and bulkiness and with different properties (fineness, twist level, even colours) are spun on one OE ring spinning machine. The air jet spinning machine produces wrapped core yarns from different filaments as well as fancy yarns.