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CBF, from raw material to container

Sacmi introduces the “compression blow forming” at PETnology Europe in Cologne.

One must-see “two-day fair” for international leading companies operating in the food & drink business. The framework is the German city of Cologne which shall host PETnology Europe from 9th to 10th March, followed by the almost contemporaneous Anuga FoodTec fair, from 10th to 13th March, also an international reference for the dairy industry.

The first one, which offers an ideal opportunity to combine the commercial advantages of an international exhibition with the chances to meet and discuss with others, thanks to a significant agenda of meetings and conferences, will have the participation of Sacmi Imola represented by Luca Nanetti, Marketing Manager from the B.U. Closures & Containers as one of the lecturers.

The technology has been called “compression blow forming” - its acronym CBF - and is proposed by Sacmi as an innovative industrial process to manufacture plastic containers directly from resin. CBF works with a wide variety of resins, allowing the production of containers from granule independently from the resin used, HDPE, PS, PET or PP. This is so thanks to a strongly innovative transformation process, based on the continuous extrusion of plastic material, subsequently cut into predetermined doses, inserted in an open mould and finally formed into a preform through compression. The preform is thermo regulated in the mould in order to obtain the right temperature for stretch-blowing, and thus allow the container to exit the line in an ordered way.

The outcomes comprise a remarkable productivity combined with a high practicality of use. It is also worth reminding that, apart from the wide variety of raw materials which can be processed through CBF, an evidence of its flexibility, it also has an outstanding variability in terms of application: from classic containers to plastic bottles for the “food & beverage” business to specific bottles used by the pharmaceutical industry.

This innovation introduced by Sacmi at the PETnology Europe of Cologne also represents the evolution of two technologies widely used by manufacturers of closure machinery, technologies that Sacmi combine in extremely compact solutions, allowing a transformation of raw material into bottles in a single process. The first one is the continuous compression technology, which Sacmi’s Research & Development labs have been researching on and developing for almost 15  years, with the aim of implementing it to the machinery for the production of closures. The second is the one developed by Sacmi in the preform blowing sector for the production of containers. CBF is thus proposed as an ideal and complete state-of-the-art solution that satisfies the most varied demands from the international packaging industry, thanks to a multiplicity of productive applications.


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