link no. 59 customer magazine spun yarn systems - Rieter

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8 LINK 59 . 1 /2012 PRODUCT NEWS C 70 – Success through Cutting Edge Technology With the foray into the application area of rotor and synthetic fibers, the operational field of the C 70 is complete. In terms of performance, quality and energy consumption it sets new standards. Fig. 1 Quicker and easier replacement of the inserts for variable trash removal. Since the market launch of the C 70 card in 2010 in qualitatively superior segments such as combed and carded ring yarns, its operational range has been systematically extended. With the more than 600 C 70 cards sold in the meantime, Rieter has sold totally more than 5 000 cards with the 1.5 m card technology. Confirmation of the accuracy of the future-oriented 1.5 m carding technology was underlined by the fact that during the ITMA 2011 in Barcelona, no exhibitor showed a card more than 1 m wide. C 70 – the new standard Both in direct comparison with the latest card generation of other suppliers and with the latest version of the C 60 card, the C 70 has proved its position as performance leader. In a direct comparison using Viscose, the C 70 has clearly relegated its latest rivals to 2nd place. As regards production and quality, it was shown that the C 70 sets new standards. The yarn count of the spun rotor yarns was in the range Ne 30 – 50. The following results were achieved (Fig. 2): • At 20 % higher production, a 30 % improvement in quality was reached. • Both the evenness of the spun yarn and its strength were better than those of competitors. At one customer in Turkey, technology trials were carried out with the latest version of the C 60 and a C 70 in order to compare production performance and quality. The plant processes 100 % US cotton to knitting and weaving yarns in a fineness range Ne 24 – 30. For the comparison trials, an OE yarn with a yarn count of Ne 30 was spun on the Rieter R 40 rotor spinning machine. Summarizing the testing period, it can be stated that: • the C 70 achieved a 25 % better quality at equal production, • with the production increase of +60 % the C 70 reached the same quality values as the C 60. Success factors The key to this success can be found in a combination of various factors. On the one hand, the working width of 1.5 m provides the optimal basis for maximum performance. In combination with the high precision in the area of the carding gap and the maximal active carding area of all cards (32 flats in working position with a working width of 1.5 m), the C 70 thereby becomes a benchmark. Optimal raw material exploitation as well as flexible adaptation to various raw materials is achieved by selective trash removal. It contains the following features: • Infinitely adjustable knife on the licker-in. • Q-package with 4 inserts for optimization of the extracted waste. • Infinitely adjustable flats speed that is directly entered at the controls. The IGS system (integrated grinding system) sharpens not only the cylinder clothing but also the flats throughout their service life with intelligently distributed grinding cycles and thereby maintains the sliver quality at a high level. In addition, the durability of the clothings increases by up to 20 %. The modular construction permits quick adjustment to new raw materials and requirements. The replacement of the licker-in, flats and doffer clothing is time-consuming maintenance on conventional cards. The modular construction of the C 70 reduces these downtimes to previously unequalled minimal levels. All three modules can be even more easily replaced with prepared optional replacement models.
Economy Quality Flexibility 1 2 High output in all applications due to large active carding area Excellent raw material utilization with variably adjustable knife at the licker-in and selective trash removal (pre- and post-carding areas) 1 3 2 2 3 Large active carding area with 32 flats in working position Carding gap precisely adjustable within close tolerances 5 1 4 2 LINK 59 . 1 /2012 PRODUCT NEWS Modular construction facilitates rapid adaptation to raw material Shorter process with draw frame modules 4 Low maintenance costs with long clothing service life due to IGS 4 ICG – permanently sharp clothing 5 Choice between single and triple licker-in 9
Page 1 and 2: The customer magazine of Rieter Spu
Page 3 and 4: Ready for the Future Recent months
Page 5 and 6: On the one hand, we are able to mor
Page 7: WASTE COMPOSITION IN THE BLOWROOM,
Page 11 and 12: Automation in Combing More than 50
Page 13 and 14: Fig. 6 Lap change on the E 76 combe
Page 15 and 16: R 60 - Nm 28 / Ne 17, 100 % COTTON
Page 17 and 18: Fig. 2 With SERVOtrail the roving f
Page 19 and 20: NE 30, 100 % COTTON, KNITTING YARN
Page 21 and 22: 4 spinning systems in the Rieter Sp
Page 23 and 24: Installed rotors [1 000] Fig. 3 Fig
Page 25 and 26: Number of particles/1 000 m Fig 9 F
Page 27 and 28: The higher the grade, the better 6
Page 29 and 30: Innovative Retrofits for Draw Frame
Page 31 and 32: Presentation of the Rieter Award in

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