Based on the Corona process and a substitution of air with specific gaseous mixtures into the discharge area, the newly developed surface treatment ALDYNE(TM) offers both high level improvement and high flexibility to film converters. By grafting nitrogen-based chemical functions, it confers to the treated surface excellent properties such as high surface energy and high adhesion of coatings. (C) 2003 Elsevier Science B.V. All rights reserved.