British Plastics & Rubber, May 1st, 2006
Seven layer coex films have reached the limits of their potential and converters are finding it difficult to offer their customers perfect films for specific products, says Windmoller & Holscher, which has now produced a nine layer version of its Maxicone blown film die.
A nine layer die gives converters more flexibility to produce new barrier film structures. The company sought to minimise both melt volumes and melt residence times in developing the new die. Materials such as EVOH are liable to bum when in prolonged...
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