Method and process to laminate substrates using an adhesive tape

A process for producing a packaging laminate comprising the following steps:

• a) laminating a tape having a first heat activated adhesive which is activatable at a first temperature and a second heat activated adhesive which is activatable at a second temperature being higher than the first temperature, wherein the first heat activated adhesive and the second heat activated adhesive are coated in alternating bands at least on one surface of the tape, to a packaging substrate;
• b) positioning in or on a laminating machine the tape at a predetermined position over the packaging substrate;
• c) heating the tape at least to the second temperature while contacting the tape with the packaging substrate to form the packaging laminate;
• d) cooling the packaging laminate for setting said second heat activated adhesive to provide a first adhesion between the tape and the packaging substrate;
• and
• e) cutting a predetermined portion of the packaging laminate before a second adhesion occurs between the tape and the packaging substrate when the packaging laminate is cooled below the first temperature and the first heat activated adhesive is set to permanently fix the tape to the packaging substrate.