PETpla.net Insider 04 / 2010

BOTTLE MAKING 27 PET planet insider Vol. 11 No. 04/10 www.petpla.net Lightweight bottles for hot filling Sidel claims that its new Skyward and Curvy models are the lightest PET bottles available for hot filling. The two 500cl bottles weigh just 18.9g each but have distinctive appearance and functional features. The lightweight bottles have been made possible by the development of new technical solutions that extend possibilities of lightweighting for heat-set packaging. You will feel better having made the right decision. Reduce your energy consumption. Gesellschaft Wärme Kältetechnik mbH Friedrich-Ebert-Str. 306 · D-58566 Kierspe Tel. +49 2359 665-0 · www.gwk.com M o u l d i n s e r t s T e m p e r a t u r e c o n t r o l t e c h n o l o g y W a t e r t r e a t m e n t C o o l i n g t e c h n o l o g y T e m p e r a t u r e c o n t r o l l e r s C h i l l e r s E n e r g y s a v i n g c o o l i n g s y s t e m s Skyward has a long silhouette, a belt and four panels, rather than the more common six or eight. As its name suggests, Curvy features curves, spirals and a twisted back, which acts as a support beam. Sidel Packaging & Tooling Centre achieved the lightweighting of the new bottles by completely redesigning the neck, body and base. The 28mm amorphous (non-crystallized) neck has been made lighter, and it accepts a standard cap for carbonated soft drinks. Revisions to the base have made it stiffer, while using fewer raw materials. The geometric structure of the bottle bodies are designed to compensate for deformations due to vacuum absorption after cooling. Sidel says that the new bottles’ blow-moulds can achieve 1,800bph per mould with a standard HR proc- ess, which is obtained by heating optimisation with the SBO Universal range. The company’s bell nozzle is claimed to enable the blowing of lighter, amorphous necks without deformation. www.sidel.com C O S T EFFICIENCY ENERGY EFFICIENCY