Laminating aluminum plastic composite membrane with patterns on inner surface and production method thereof

Abstract

The invention relates to a laminating aluminum plastic composite membrane with patterns on the inner surface. The laminating aluminum plastic composite membrane with patterns on the inner surface comprises an aluminum foil base plate, a polyethylene film and a laminating resin layer, wherein the upper surface of the laminating resin layer is provided with a pattern printed layer, and the laminating aluminum plastic composite membrane is prepared by the production method including the step of polyurethane adhesive charging, polyurethane adhesive drying, polyurethane adhesive film blow molding, polyethylene film blow molding, laminating resin layer surface treatment and coiling treatment sequentially. The laminating aluminum plastic composite membrane with patterns on the inner surface, which is provided by the invention, has the advantages that compared with an existing composite membrane with a plane inner surface, on the premise of reaching the equal thickness, required materials are saved greatly; the composite membrane needs to be with a certain thickness in hot seal, so that the sealing stability can be ensured, thus materials are saved obviously after the inner surface pattern printed layer is added for the composite membrane; the roughness of the inner surface and the elasticity of the whole composite membrane are improved, so that internal and external bonding is difficult to occur in coiling, and the composite membrane is smooth in running.

Description

technical field [0001] The invention relates to an aluminum-plastic composite film coated with patterns on the inner surface and a production method thereof. Background technique [0002] Composite film refers to a film in which several different films are bonded together by glue or resin, aluminum-plastic composite film is a composite material that combines aluminum foil and plastic, and aluminum-plastic composite film is coated on aluminum foil. Coating a layer of resin material to make a composite aluminum-plastic film. The main unwinding above the conventional coating aluminum-plastic composite film is an aluminum foil base material, the general thickness is 20-60um, and the polyethylene ( PE), ethylene-vinyl acetate copolymer (EVA), ethylene-acrylic acid copolymer (EAA) and other materials, and then pass through the cooling roll and extrusion roll to form a composite material, wherein the extrusion roll contacts the coating surface, which is a mirror roll or wool Surfa...