ACCOSMART. SANDWICH COT. EN
WE LIVE TEXTILE. 2 ACCOSMART
Accotex AccoSmart The new Accotex AccoSmart Sandwich-Cots are based upon a completely new, revolutionary technology platform. By combination of two tailor-made, high quality elastomer layers, AccoSmart cots feature higher deformation and provide larger contact surfaces compared to conventional one-layer soft cots. Concept & Functionality Cot based upon two different elastomer-layers - Combination: soft inner-layer and hard outer-jacket - Requirement to spin fibers into yarn is detached from the inner-layer - Room for additional functionalization of the inner-layer Spin-Technological Capabilities Combination of unique designed inner-layer and outer-jacket offers additional synergies: - Longer service lifetime - Less maintenance - Longer grinding-cycles due to high abrasion resistance, mechanical stability and low crack sensitivity of the outer-jacket, while maintaining yarn quality (Ustervalues: CV%, IPI) at J-463 level ACCOSMART 3
Accotex AccoSmart Features and Benefits f f Longer service life time Enabled by special compound and design concept f f Stable yarn quality Constant yarn evenness, less imperfections, less end breaks f f Wide yarn count range Three different types suitable for all kinds of fibers and applications f f High abrasion resistance Specially designed premium rubber compounds enable longer grinding cycles and less maintenance f f Low crack sensitivity High mechanical stability provides longer grinding cycles f f Standard grinding behavior Maintenance similar to standard grinding procedure 4 ACCOSMART
Technological Background With the introduction of the new Accotex AccoSmart technology platform, the concept of shore hardness to determine the quality of a cot cannot be applied anymore. Technically, the contact-surface between cot and yarn predominantly accounts for yarn quality. The contact-surface is directly related to the amount of deformation of the cot. Due to the unique combination of two tailor-made elastomer layers, AccoSmart cots feature higher deformation compared to conventional one-layer cots. Enhanced Contact Area Standard-spinning cots versus new AccoSmart cots. Contact area + 10 12 14 16 18 20 Weighting arm load [dan] AS-6 AS-7 AS-8 J-463 J-470 J-476 ACCOSMART 5
Added value longer service lifetime In general soft cots produce superior yarn quality values as the softer the surface of the cot, the longer the contact area. However, the lifetime of cots is restricted by the wear and tear properties of the cot. Solution The new AccoSmart achieves an improved service lifetime on the same yarn quality-level of a soft cot through its unique combination of a very soft inside layer and a harder elastomer outer layer. This combination provides the optimum solution to a longer service life time. Service lifetime + Improved lifetime Added value Same quality level Hardness + + Yarn quality / Contact length Sandwich cot One layer cot Added value 6 ACCOSMART
Added value yarn quality By contrast, the use of a hard cot achieves a longer service lifetime due to better abrasion resistance, but adversely affects the yarn quality due to the hardness of the cot material. There is ultimately a trade-off between the hardness of the cot material and the quality of the yarn. Solution The AccoSmart achieves improved yarn quality and the same service lifetime when compared to a conventional spinning cot. It achieves improved yarn quality because of the unique combination of two independent layers with individual properties which influence the yarn quality positively. Service lifetime + At same lifetime Added value Improved quality Hardness + + Yarn quality / Contact length Sandwich cot One layer cot Added value ACCOSMART 7
Key Performance Features 100 0-100 -100 0 100 0-100 -100 0 100 Grinding behavior Yarn range 100 Service life (compact) Abrasion resistance Service life (ring-spinning) Working layer Yarn quality CV%, IPI Consistency of yarn quality over cot lifetime AccoSmart AS-7 63 ShA conventional Soft-Cot 8 ACCOSMART
Selected field test results Material Mill reference AS-7 100% Cotton, Ne 86/1; Compact CV% 11.91 11.39-50% 38.00 19.20 50% 90.00 54.00 200% 75.00 61.30 grinding cycle standard +72% 100% Cotton, combed; Ne 60 CV% 14.43 14.38-50% 16.00 14.00 50% 57.70 53.80 200% 73.30 68.80 ACCOSMART 9
Product Range Soft Version AS-6 - Fine counts - Cotton fiber - Compact applications Medium Version AS-7 - Fine to medium counts - All kinds of fibers - Compact and conventional applications Hard Version AS-8 - Medium coarse counts - All kinds of fibers - All kinds of applications 10 ACCOSMART
Saurer Technologies GmbH & Co. KG Elastomer Components Gustav-Stresemann-Weg 1 48155 Münster Germany T +49 251 60938 0 F +49 251 60938 138 info.accotex@saurer.com www.saurer.com Subject to alterations Reprint only with expressed permission of Saurer Technologies Accotex-BR-Accosmart-EN-171123 Saurer (Jiangsu) Textile Machinery Company Limited Shanghai Branch Company 36F, Tower B, The HQ No. 100 Zunyi Road Shanghai 200051 P. R. China T +86 21 22262586 F +86 21 22262588 www.saurer.com Saurer (Jiangsu) Textile Machinery Company Limited No. 9 Chang Yang Street, Suzhou Industrial Park, 215024 Jiangsu Province P. R. China T +86 512 8188 5688 F +86 512 8188 5698 www.saurer.com