“We promised paper manufacturers that we would develop a press felt that creates completely new opportunities”, Jochen Pirig, strategic product manager at Heimbach, remembers.
This has been accomplished, as Atrojet is the first felt worldwide that unites the advantages of Heimbach’s most significant press felt design groups: the non-woven design group Atrocross and the multi-axial design group Atromaxx who both belong to the modern felt designs, so called advanced technology bases (ATB).
Non-woven Atrocross and multi-axial Atromaxx press felts are offering comprehensive product ranges in their individual design group to meet the requirements of press felt application. Either design group have their prominent advantages such as short break in time and high nip dewatering capacity of Atrocross or the great flexibility of base weave combinations of Atromaxx to meet individual and particular requirements which is important for customized well-engineered press felt application.
In addition to these two modern press felt design groups the classically woven, respectively laminated base weave felt designs, belong to the Heimbach assortment too. Even though the existing product spectrum of Heimbach is sophisticated, Heimbach keeps on improving its existing product lines and developing new products. Atrojet is the brand name of one of Heimbach’s latest developments which is an innovating new press felt design combining the advantages of multi-axial and non-woven technology. With the multi-axial non-woven technology the Heimbach felt designers can meet the particular requirements of press felt positions even better. The specific quality of Atrojet is the structure of the base inside. With Atrojet the inside base facing the paper side consists of a unique non-woven layer. That layer of yarns is made of machine direction yarns only which results in great strength, evenness and smoothness of the base facing the paper side. The machine direction (MD) yarn structure is arranged in diagonal direction which is the characteristic multi-axial angle improving collapse resistance by increasing crossing points of all yarns. Broad flexibility is given by the fact that the non-woven paper side layer can consist of different ply twist yarns as well as different yarn diameters and flexible yarn count.
Atrojet represents the next evolutionary step in felts sector