Field tests confirm high performance of new Accotex aprons

Field tests confirm high performance of new Accotex aprons

The latest Accotex apron NO-79201 is made from new compounds that deliver longer life and better performance. Flexible enough to work with all fiber types across ring and compact-spinning machines, field trials show better resistance throughout a 12-month spinning cycle. The NO-79201 is available in a wide range of dimensions as top and bottom aprons for all kinds of applications.

The Accotex NO-79201 (Fig 1) is a new generation of aprons for ring and compact- spinning machines. It is made of two aligned rubber compounds which deliver a high abrasion and crack resistant spinning apron. The mechanical robustness of the rubber compounds allows effective use on all ring and compact-spinning machines, working with all fiber types and within the whole spectrum of yarn counts. The excellent friction properties of the compound contribute to a smooth and even running over the whole service life of the apron, especially at the start-up of machines.

Superior friction behavior

The new Accotex NO-79201 was tested for 12 months at a customer in the USA, alongside the already existing NO-78210GX, the NO-78210G and a competitor’s apron (Fig 2). The friction value of the different aprons was measured over the whole apron life in regular frequencies. Each column reflects the individual friction value of the inner layer evaluated on representative apron samples from the field test at 3, 6, 9 and 12 months. After 12 months running, the inner layer friction of the new

NO-79201 is nearly unchanged, confirming the smooth and even running over the whole service life of the apron. This superior friction behavior has also been reported from other Accotex customers across the world, processing different fiber types, blends and yarn counts. Besides, these trial customers have noticed far fewer broken bottom aprons than they would normally expect.

Fig 2: The new apron NO-79201 shows nearly unchanged inner layer friction, confirming unmatched performance over time.

Different versions for flexible use

The Accotex apron NO-79201 is available in a wide range of dimensions as top and bottom aprons for all kinds of applications. It comes as closed apron, skived bottom apron or skived and pre-glued bottom apron. The NO-79201 can be supplied with a plain inside or a specially configured inner layer pattern, known as a knurled version (Fig 3). The main benefit of the knurled apron is to provide less contact area to the nose bar, which enables lower torque, and thus less stress on the bottom roller bearings. This also allows the inside structured apron to run clean on so-called “dirty” fibers and to work efficiently in demanding environmental conditions in terms of fiber cleanliness. The knurled apron is available with diameters of 72.5, 76.3 and

79.0 mm.

Accotex NO-79201 can also be supplied with a knurled inner layer, for increased service life.

Rieter is the world’s leading supplier of systems for short-staple fiber spinning. Based in Winterthur (Switzerland), the company develops and manufactures machinery, systems and components used to convert natural and man-made fibers and their blends into yarns. Rieter is the only supplier worldwide to cover both spinning preparation processes and all four end-spinning processes currently established on the market. Furthermore, Rieter is a leader in the field of precision winding machines. With 17 manufacturing locations in ten countries, the company employs a global workforce of some 4 900, about 18% of whom are based in Switzerland.

Accotex, the world’s leading supplier of cots and aprons for the textile industry, is a subsidiary of the Rieter Group. Accotex, based in Muenster (Germany), creates customer value through system expertise, innovative solutions, after-sales excellence and global presence. The leading position of Accotex cots and aprons is based on more than 100 years of elastomer expertise. The products are used primarily in short- and long-staple spinning, rotor and air-jet spinning, and twisting.

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