Laminating

 

Lamination is the process of applying a film of thin plastic to a substrate using heat and/or pressure, so that the laminate bonds to the paper, and is ultimately tear and water resistant.

 

Hot Laminating

Hot lamination is performed using a hot laminating film with a hot laminator. A hot laminating film consists of two layers; a plastic film layer and an adhesive resin which becomes “tacky” when it is heated. The film travels around heat rollers which heat the adhesive making it “tacky”as it comes into contact with the substrate. These rollers are operated at varying temperatures of 120 to 300 degrees Celsius. After the product cools down, the adhesive “sets” and the process of lamination is complete.

 

Cold Laminating

Cold Lamination involves laminating without heat. A cold laminating file consists of three layers; a plastic film layer, a tacky adhesive and a siliconed paper to avoid it sticking to itself. In the process, the siliconed paper is peeled away to expose the tacky side to the substrate. A “pressure” roller applies the necessary pressure to adhere to the substrate. Because there is no heat involved, delicate printed products are safer from being damaged. Cold lamination is used for the lamination of heat sensitive materials such as particular inks, plastics and some paper documents.