PROCEDE POUR SCELLER ET OUVRIR DES EMBALLAGES EN UNE PELLICULE THERMOPLASTIQUE ET EMBALLAGES AYANT DES JOINTS POUVANT ETRE FACILEMENT ENLEVES

摘要

An easily peelable heat seal between two sheets of cross-linkable polyolefin packaging materials is achieved by cross-linking the polyolefin material in each sheet by irradiating the sheets to a dosage level of at least 3 MR prior to heat sealing the sheets together. The easily peelable seal is especially useful where film surfaces in large flange areas are sealed together.