No. 25 08/2011 € 5.– THE MAGAZINE FOR SPINNING MILLS Bräcker: • TITAN Spinning Rings • Travellers for worsted spinning Graf: • ‚Camel’-type metallic card clothings • Blank hardening Novibra: • CROCOdoff • HP-S68/3 NASA Suessen: • CPS - Cot Protecting System • PINSpacer NT • EliVAC-CDS - Central Duct System • SOLIDRING S43 3.6 • SpinBox SE 9 Performance Kit Mill Report: Sri Nachammai/India CONTENTS Impressum No. 25 - August 2011 Price: € 5.– Publication: twice per year Editorial .......................................................................................... 3 Information & Advertising Contact: 30 Millions of Bräcker TITAN Spinning Rings................................ 4 A Success Story SPINNOVATION, Germany The Cot Protecting System (CPS) .................................................. 7 Editor in Chief: Ioannis Spiridopulos Next step towards a maintenance-free drafting system fax +49(0)7162 15-367 e-mail: [email protected] Experience with ‚Camel’-type metallic card clothings ............... 12 internet: www.suessen.com Novibra CROCOdoff ..................................................................... 15 Title registered® at German Patent Office The new generation of cutting crown Copyright © 2011 New PINSpacer NT ....................................................................... 17 Published by Bräcker J 9.1 D CST and J 11.1 D .................................................. 19 Steel Travellers for conical rings to spin worsted, Spindelfabrik Suessen GmbH semi-worsted yarns, blends and acrylic fibres Donzdorfer Strasse 4, D-73079 Süssen, Germany Performance Kit for Autocoro SE 9 ............................................. 20 Novibra NASA Spindle ................................................................. 22 The NASA spindle has become the standard Bräcker AG, Obermattstr. 65 EliVAC Central Duct System (CDS) ............................................... 24 8330 Pfäffikon-Zürich, Switzerland The alternative system to generate the vacuum for EliTe®Compact Spinning SOLIDRING S43-3.6 ...................................................................... 26 Graf + Cie AG, Bildaustr.6 Blank hardening........................................................................... 27 8640 Rapperswil, Switzerland Sri Nachammai Cotton Mills Ltd. ................................................ 28 NEWS ........................................................................................... 29 Novibra Boskovice s.r.o., Na Kamenici 2188 68001 Boskovice, Czech Republik Reprint of articles with reference permitted – Voucher copies desired All rights reserved Spindelfabrik Suessen GmbH Front Cover: Bräcker - TITAN Spinning Ring 2 SPINNOVATION No. 25 Editorial Ioannis Spiridopulos - Head Marketing & Sales Editor in Chief SPINNOVATION Dear Reader, Graf will introduce a new wire with Consequently the yarn and fabric a new designed tooth shape called buyers are hesitating to place or- “Hipro” and which is designed espe- ders. However, I personally believe cially for nonwoven applications and that this situation will only last for offers the users major advantages in a limited time and that the ITMA in performance and life time. Barcelona will be the place where the ITMA 2011 in Barcelona is around signal for an upswing will be set. the corner. It will be held from Novibra will introduce a new spindle September 22nd to 29th. After Munich clamping crown called CROCOdoff, Again, as in all previous issues of our in 2007, we got once more an attrac- the successor of the well-known Yarn SPINNOVATION, we have tried to pre- tive location for the ITMA exhibition. Catcher and will reduce the doffing sent sophisticated technical articles, We are very much convinced that this end-breaks and consequently in- as well as relevant news from around fair will be once again a milestone in crease the doffing reliability. ‘our’ world. the history of ITMA exhibitions. Suessen will show the “Cot Protection I hope that you will enjoy this issue All manufacturers will present their System”, an arrangement for draft- of SPINNOVATION and I invite you to major innovations during this show. ing arms which allows the spinning give us your comments and sugges- And this is exactly our aim as well. mills to avoid grinding on the front tions for further improvements. The Business Group “Premium Textile top roller cot and hence extend the Components” with the member com- life time of the soft top roller cot to a panies, i.e. Bräcker, Graf, Novibra and nearly unlimited time period. Suessen, will show their new prod- See you in Barcelona! ucts in Barcelona. Suessen will also show the new gen- eration of PINSpacers. These PIN- This issue of SPINNOVATION, which Spacers are designed in such a way you hold in your hands, is a preview that despite the cradle spacer which of the major product innovations of is used (coarse or fine counts) the pin all four member companies. is always in the correct position in the Ioannis Spiridopulos drafting line and provides the maxi- Bräcker will introduce a new genera- mum of yarn quality improvements. tion of J-shaped steel travelers suit- able for conical rings for the worsted Beside the above products, all 4 com- and semi-worsted spinning industry. panies will of course have the stand- ard product range on display in the Furthermore I am very proud to an- booth and will now for the first time nounce that Bräcker recently deliv- be able to offer technology packages ered to a customer in Turkey the 30 consisting of products of all 4 units. millionth TITAN spinning ring. This is a highlight in the story of this unique In the meantime, as you all have felt high performance spinning ring. very clearly, the industry is facing A special ceremony to award the some difficulties after of almost one Turkish customer will be held on our and half year of a booming market. booth in Hall 1, Booth 112-117. You all The cotton prices dropped abso- are kindly invited to join this remark- lutely unpredictably to a low level able moment. and so the yarn prices did as well. 3 SPINNOVATION No. 25 30 Millions of Bräcker TITAN Spinning Rings A Success Story by Franz Oberholzer, CTO, Bräcker AG Fig. 1 TITAN Spinning rings Development and introduction of track. In short-staple spinning, the Since the traveller must produce the Bräcker TITAN spinning rings in 1999 ring/traveller system operates „dry“, spinning tension, it simultaneously has considerably contributed to which means that it is not actively lu- serves as brake which generates fric- increase productivity in ring spin- bricated. But the system cannot work tional heat. At the above-mentioned ning. Until then, spinning rings in the without any lubrication at all. Fibre high spindle speeds, the lubrication high-end sector usually had a service particles, wax and spin finish deposit film for some reason can stall for a life of 1 to 2 years, but TITAN rings on the sliding surface and build up a short time. In such moments, travel- reached a lifespan many times over microscopically fine lubrication film. ler and spinning ring get into touch. of up to 5 to 10 years. To ensure this lubrication, it is of The frictional heat in the contact utmost importance to choose the ap- area can reach temperatures of over At the same time, production speed propriate traveller. 800° C. On standard spinning rings could be increased by over 10 per- this will result in material transfer cent. Since then, more than 30 mil- At standard spindle speeds, this fine and microwelding, so that travellers lion TITAN spinning rings have been lubrication film is enough to prevent and rings are heavily worn. delivered, the majority of which still or minimize premature wear on rings being in operation. It can well be as- and travellers. The forces acting on Properties of TITAN Rings sumed that every 7th ring spinning a spinning ring are remarkably high. position world-wide is equipped with At a traveller speed of 40 m/s (over The short service life of spinning rings a TITAN ring (Fig. 1). 140 km/h) and a ring diameter of and more exacting demands of the 38 mm, the centrifugal force devel- spinning mills gave the impetus to Demands on Spinning Rings oped by a traveller weighing 45 mg develop a spinning ring with a longer (3/0) is 3,780 mN, approx. 370 g, what lifespan. Bräcker solved the problem The traveller has the function to im- corresponds to the 8,000 fold of the by means of a special alloy applied part twist to the fibres, to produce traveller weight. Assuming a contact onto the unmachined rings. spinning tension and to wind the area of about 2 mm2 of the traveller, spun yarn onto the cop. The spinning the resulting specific contact pres- The TITAN coating is characterized by ring serves the traveller as sliding sure is 1.9 N. a particularly high resistance to wear. 4 SPINNOVATION No. 25 The melting point of the alloy is sub- The TITAN coating is applied on all sults in disturbing quality difference stantially higher than of the traveller spinning ring designs used in short- particularly with regard to yarn hairi- material, and this eliminates the risk staple spinning: T-flange types, ½, 1 ness. Consistency of yarn quality is of welding of traveller material and and 2 as well as oblique flange rings just as important as the quality level, therefore wear on the spinning ring. type ORBIT and SU. which is another advantage of TITAN spinning rings. This highly resistant layer cannot be Consistent Yarn Quality affected by a running-in process of the Reduced Spinning Ring Costs traveller; thus, the traveller raceway