LAMINATED FILM AND ITS PRODUCTION

摘要

PROBLEM TO BE SOLVED: To enable good lamination in a good state in a combination of films which have been considered to be impossible to perform good lamination when films are laminated by using a solventless adhesive. SOLUTION: In a method for producing a laminated film 33 by coating a first base material 31 with a solventless adhesive to bond and laminate the same to a second base material 32, the first and second base materials 31, 32 are laminated under tension and held under pressure of 3 kg/cm<2> or more for 10 hr or more before tension is removed. When a polyester film is used as the first base material 31 and an aluminized polypropylene film is used as the second base material 32, as the solventless adhesive, one with a viscosity of 500 cps or less at liquid temp. of 90 deg.C is pref. used.