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Innovation Hosokawa Alpine Aktiengesellschaft, Blown Film Division Presenting maximum versatility for processors Visitors to booth D06 in hall 16 will experience an exciting presentation: in addition to several advancements, Hosokawa Alpine will launch some impressive innovative products Alpine X die heads – more layers means more options When Hosokawa Alpine presented a 5-layer coextrusion line three years ago, they triggered an important development: their new 5-layer technology helped reduce the film thickness level by between 5% and 10 % compared to 3-layer films while saving material and resources and at no detriment to the excellent mechanical film property. Presenting maximum Many visitors to the Alpine Hosokawa booth came away impressed and c o n v i n c e d . To d a y , t h e m a r k e t i s experiencing a general shift from 3-layer to 5-layer film structures. Hosokawa Alpine 5-layer blown film lines can process polyolefins as well as barrier materials such as PA and EVOH without extruder changes. For processors, the benefit introduces a high level of versatility and opens up new areas of application. Increasing the layers of a film structure allows more versatility and results in higher cost-efficiency, as different raw materials can be combined. A higher the number of layers, the more precisely the film’s

mechanical and optical properties can be configured. This development will continue and is far from over, although we have now moved on to 9-layer lines. At K 2013, Hosokawa Alpine will provide a live demonstration of the production of different 5-layer structures.

Oriented film has many benefits With more than thirty sold lines, Hosokawa Alpine is the unrivalled leader in the market for monoaxial film orientation lines (MDO). During the orientation process, blown film is stretched in the direction of the machine direction between two rollers that run at different speeds. The resulting stretch ratio is dictated by the processed raw material. The film orientation process allows processors to influence the film properties. Thanks to this technology the thickness, strength, orientation in machine direction, stiffness, puncture, shrink and tear resistance and deadfold properties,

material density, gloss, transparency, barrier effect and water vapor permeability of blown films can be systematically optimized to suit the application at hand. Reducing trim waste with the patented TRIO system During the orientation process, the film is constricted in the transverse direction and its width is reduced. This neck-in has the effect that the thickness of the oriented film increases gradually from the center towards both edges. In 2012, Hosokawa Alpine developed and patented the TRIO system. The TRIO trim reduction for inline orientation is a special thickness control system. It reduces the thickness variation on the edges of the film and balances the thickness profile of the reel with the result of an excellent flatness of the film. The entire process becomes more efficient. At K 2013, Hosokawa Alpine will run the first live demonstration of the TRIO System at an international trade show. Oriented by TRIO, blown film can be printed, laminated or decorated. Due to significant raw material savings, the higher investment pays off quickly. MDO film is now perfectly suitable for many established and new applications.

For more details:

Pipe manufacturer impressed again by KraussMaffei Berstorff's system expertise in multi-layer extrusion

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Multitherm, one of the leading pipe producers in Austria (head office: Vienna), swears by the premium quality and system expertise of KraussMaffei Berstorff, and is investing once more in a multi-layer extrusion line. Premium quality technology impresses satisfied customer Multitherm has been a staunch customer of KraussMaffei Berstorff for decades. "With the current order, Multitherm will replace an existing extrusion line for the production of tripe layer pipes in order to therefore satisfy market demands for more functional layers," said Andreas Kessler, General Sales Manager at KraussMaffei

Berstorff. "The recently successfully concluded acceptance procedure totally fulfills the technical requirements relating to the extrusion line." The core components of the complete

extrusion line are 1 monoextruder and 4 coextruders from the proven single-screw series and the KM 5L-RKW 91-63 multi-layer pipehead from KraussMaffei Berstorff. The extrusion line produces hot water pipes (with diameters ranging between 14 and 40 mm) with an internal layer made of PE_RT, an oxygen barrier layer and an external layer made of PE-RT. Coextruders apply the adhesive agent between the individual layers. Multitherm produces the pipes for use in heating systems and underfloor heating systems.

For more details: October 2013 • 18

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