Machine for Bonding Films Made of Different Materials in Several Layers, and the Corresponding Method

Method for bonding three films using solventless adhesive material, wherein:

• i) two films are fed and guided into spreader/applicator units designed to apply an adhesive material to said films;
• ii) a third film is fed;
• iii) the three films are guided to a bonding zone where the adhesion action between the films occurs;
• iv) the final film, consisting of layers of film bonded together by an adhesive material, is then taken up.

Method for bonding three films, using a solventless adhesive, wherein:

• i) two films are fed and guided into spreader/applicator units designed to apply an adhesive material to said films;
• ii) a third film is fed;
• iii) two of said films, one of which is spread with adhesive material, and the other without adhesive coating, are guided towards a first bonding zone where the adhesion action of the two said film occurs;
• iv) the two previously bonded films and the other film spread with adhesive material are guided towards a second bonding unit where the adhesion bonding of the three films occurs;
• v) The final film composed of the three layers bonded to one another by means of an adhesive material is taken off.