The Green Machines of Dornier in limelight

The Lindauer DORNIER GmbH displays at the ITMA in Milan a multitude of innovations and new machine concepts for particularly sophisticated fabrics. Under the motto ´The Green Machine´ this family enterprise from Lake Constance, which manufactures all its machines exclusively in Germany, presents comprehensive solutions for sustainable technologies.

With this guiding principle, DORNIER is not just hinting at the well-known green varnish of the weaving machines but, above all, at the ´green effect´ of the fabrics they produce. These fabrics are vital for many green technologies in almost all sectors with products such as finest filters to purify water or air, airbags and antiballistic structures for protection of life and limb, glass or carbon fibre composites to reduce moving masses and the CO2 emissions. In all these sectors, the DORNIER ´Green Machines´ are indispensable for the production of high-precision fabrics. Especially in these areas, where the highest requirements are placed on quality, DORNIER weaving machines unfold their unique performance. This is achieved thanks to the quality of manufacturing, the inventiveness of developers and engineers as well as the culture of close communication with the customers. In addition to the focus placed on the production of technical textiles to improve sustainability, the German machine manufacturer also presents newest developments for the applications home textiles, clothing and technical textiles. The highlight of the 400 m2 DORNIER exhibition stand is a new generation of rapier weaving machines´the P2´that will be revealed to the public for the first time. Further DORNIER exhibits are an air-jet weaving machine A1 and two rapier weaving machines P1 in their respectively latest version. At the stand of Stäubli an air-jet weaving machine A1 in Jacquard version and at the stand of Bonas a rapier weaving machine P1 with a directly mounted Jacquard machine will be displayed.

Lindauer DORNIER GmbH will be presenting the following machines and applications at the ITMA: The P2 is a further development of the DORNIER rapier weaving P1 machine with positive controlled center transfer. At the ITMA stand this machine will produce a high density filter fabric in super heavy design with a nominal width of 320 cm and two warp beams. For this width, this kind of fabric could, up to now, only be produced by means of special machines. The extremely high density is achieved by a specially developed cloth take-up, an absolute uniformity of the filling density and a reed impact force of 5 tonne. Such a high reed impact force requires to regulate the warp tensions with the warp let-off and cloth take-up at a constant value.

In order to master this warp tension, the DORNIER SyncroDrive® with its stable speed is crucial for the shedding. The load peaks in the whole shedding motion are minimised. And the produced uniform fabric has always the same mesh number per cm2. In addition to density this is another requirement for a high quality filter fabric.

This new rapier weaving machine P2 provides for weavers a multitude of new fields of application as well as the chance to open up new markets. As real ´Green Machine´ it will prove its special strength and sturdiness above all in fields that require more efficient, heavier and denser fabrics with highest regularity. This applies, e.g. for filter fabrics for wet, fluid and solid matter filtration or for soot particle separation, etc.

The rapier weaving machine P1 of the latest version produces a sophisticated functional fabric out of different materials, e.g. upholstery fabrics for office chairs. Monofilaments and different flock yarns are used in the filling. The colour of the fabric can be chosen individually according to customer wishes. This challenging elastic material of high quality can only be woven using a very precise warp regulation. The regulation must ensure a predefined tension curve from f