Aus der Branche

Der internationale Technologiekonzern ANDRITZ hat erfolgreich die neue Krempel sowie die Faseröffnungs- und Mischanlage in Betrieb genommen, die an Albis in Roasio, Vercelli, Italien, geliefert wurde.

Mit ihrer großen Arbeitsbreite von 5,10 m ermöglicht die Maschine die Produktion kundenspezifischer Vliesstoffe mit ausgezeichneten Produkteigenschaften und gleichbleibender Qualität. Ein Beispiel ist Albis Curacell®, ein mehrschichtiger Vliesstoff mit einem Gewicht von 35 bis 70 g/m², der in einem patentierten, völlig wasserfreien Verfahren erzeugt wird und Flüssigkeitsmengen von mehr als dem Siebenfachen seines Eigengewichts absorbieren kann. Die Produktionslinie umfasst außerdem eine moderne vorgelagerte Faseröffnungs- und Mischanlage von ANDRITZ.

Albis wurde 1995 als Privatkonzern von Gianni Boscolo in Italien gegründet und ist seit drei Jahrzehnten ein wichtiger Player am Vliesstoffmarkt. Auf Basis kontinuierlicher Forschungs- und Entwicklungsarbeit bietet das Unternehmen innovative, hochwertige Vliesstofflösungen für verschiedene Sektoren, darunter Hygiene, Medizin, Körperpflege, Textilien, Filtration und Landwirtschaft.

Global energy consumption reached a record high in 2019, following a 40-year trend for rapidly increasing energy demand that was only halted by the Coronavirus pandemic. It’s estimated that more than 80 % of this energy is still generated from fossil fuels that produce CO2 emissions and contribute to climate change. Renewable energy offers a solution to this problem, but saving energy whenever possible is an even more effective approach. That are the motives for Trützschler to develop the intelligent card TC 19i, which sets a new benchmark for energy-efficient carding.

The intelligent Trützschler card TC 19i features the unique T-GO gap optimizer, which continuously and automatically monitors and adjusts the carding gap to an ideal position during production. Innovative drive- and air technology further reduce energy consumption of the TC 19i.

The most energy-intensive elements in a carding machine are the drive, the dust suction process and the compressed air system. Permanent suction is needed to remove dust and cotton waste in key places. Smart optimization of these areas has made the intelligent card TC 19i a benchmark for energy efficiency in carding because it uses less electricity, lower suction pressure and less compressed air than other machines, while providing the highest production rates currently available on the market.

In a head-to-head comparison between the TC 19i and a high-performance card from a competitor, the TC 19i consumed at least 10 % less energy per kilogram of material produced when manufacturing rotor yarn from a cotton and cotton waste mix. The compared energy values included electric power consumption and energy required for suction and compressed air and were measured in both cards at the same production of 180 kg/h. A 10 % reduction in energy per kilogram of sliver produced, as proven here by TC 19i, can have a significant impact on a spinning mill’s profitability; annual savings worth a five-digit sum are frequently possible, depending on factors such as the output of the mill. The customer trial also showed TC 19i’s excellent reliability at the customer’s usual production rate of 180 kg/h, and even demonstrated stable performance at 300 kg/h in the same application. Because the TC 19i with T-GO gap optimizer realizes maximum production rates at no compromise in quality, manufacturers can reduce their energy demand and investment costs drastically: Less machines are needed to achieve the desired output, and energy consumption per production is reduced.

This improvement was made possible by a long and sometimes challenging innovation process involving mathematical models of air flows, as well as flow simulations and prototypes. By combining the final flowoptimized parts in the TC 19i, Trützschler’s experts have developed a card that operates with suction pressure of just -740 Pa and with an air requirement of only 4200 m³/h. This translates into 40 % less energy demand for air technology compared to the latest high-performance competitor model.