| abstract |
A method of making the flexible packaging material 5 is described herein. The method comprises the steps of providing a first flexible substrate (3) having a first surface on which an ink composition (4) is printed, wherein the printed ink composition is a polyvinyl chloride, polyvinyl butyral, nitrocellulose, Comprising an ink resin comprising a polyurethane, a polyamide or an ultraviolet ray curable resin; Providing a second flexible substrate (1); Depositing a layer (2) of a thermally activated laminating material on one of a first surface of a second flexible substrate and a first surface of a first flexible substrate on which an ink composition is printed, Wherein the activated laminating material is selected from the group consisting of alkylene monomers and copolymers of acrylic acid or methacrylic acid monomers, alkylene monomers and copolymers of alkyl acrylates or alkyl methacrylate monomers, polyurethanes, ionomers, alkylene monomers, A thermally activated polymer selected from anhydride-modified polyalkylene and acid-modified polyolefin; And contacting the layer of laminating material thermally activated under the conditions of heat and / or pressure with the first surface of the first flexible substrate printed with the ink composition on the remaining surface and top of the second flexible substrate . |