High density polyethylene (HDPE)/CaCO3 films containing rutile TiO2 were prepared via blown film extrusion process. In order both to characterize the composite film, to evaluate the photocatalytic properties in the finished film and to develop an improved food packaging able to act as useful carrier of preservatives, we proposed an investigation carried out using different approaches. Real tests were performed on traditional dairy products using produced films as food packagin
