20 HEIMBACH
The next evolutionary step in press felts
in the paper making industry, Heimbach has advanced proven press felt technology: Now existing woven fabric or non- woven fabric structures can be combined with a multi-axial non- woven structure. “These flexible and adaptable
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Atrojet modules are the dawn of a new era in press felts,” explained Franz Kiefer, who supervised the R & D project launched in 2011 from the very beginning, together with his colleague Jochen Pirig, both strategic product managers. The development project amalgamated not only the experience gathered over the years at Heimbach, but also the results of a series of field trials with customers in Europe and Asia. The main focus was on an expansion of the spectrum of yarn material and counts. “In this respect we no longer
wanted to be limited,” says Pirig. The actual objectives were clearly formulated – a fast start, high dewatering and long service life. At its paper machine clothing business based at Düren in Germany, Heimbach combined a multi-axial non-woven structure with conventional woven bases. In doing so the felt specialist revolutionised its proven press felt technology and now offers tailored, flexible and adaptable base combinations in the Atrojet
May/June 2016
product line. Atrojet technology can be
adapted to the individual requirements of each paper making application. In doing so Heimbach designed a specific paper side Atrojet base module and combined it with existing base modules. The multi- axial non-woven base offers
Felt specialist Heimbach has revolutionised its press felt technology and now offers tailored, flexible and adaptable base combinations in the Atrojet product line. PPL reports
far greater flexibility in the composition of the yarn and twisted yarn structure than conventional non-woven or woven structures. The selection of a suitable base in the
substructure enables tailored felt designs. Kiefer and Pirig would naturally rather not say precisely where the trick lies in the manufacturing process, but they did say that “the crux of the
s a specialist and market leader for non-woven and multi- axial press felts used
Franz Kiefer (left) and
Jochen Pirig, the strategic product managers at
Heimbach who developed the latest Atrojet felts
Pulp Paper & Logistics
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