Constantia Flexibles Aluminium foil
Constantia Flexibles has developed a 5µm aluminium converter foil, designed for pouch and confectionery laminates. Improved process parameters allow the thinner foil to be processed on a high performance laminator without loss of performance.
The thickness has been achieved thanks to advances in rolling mill technologies which have enabled enhanced parameters in each of the steps: rolling, doubling, separating and annealing, to obtain the thinning to below 5µm, compared with the current standard of 6 - 7µm. Envisaged applications include the wrapping of chocolate, confectionery bars and the inner wrappers for gum where a typical lamination would be Alu/wax or adhesive/paper.