ANTI-COPYING SECURITY DOCUMENTS AND METHOD FOR MAKING THE SAME

摘要

PURPOSE: Security paper for copy protection is provided to prevent counterfeiting with a photocopy as a photocopy is reproduced in black at a copy machine, which inhibits the original contents from being recognized. CONSTITUTION: Security paper for copy protect has a structure with a resin layer capable of metal deposition on one side of the basic paper, a metal deposition layer and a protection layer laminated successively. The resin layer has the glossiness more than 350 glossiness unit (GU) at 60degree glossiness value. The resin layer capable of the metal deposition comprises mixed resin of nitro cellulose resin and linear polyester resin, or polyurethane resin, and has the thickness of 0.5-5 μm. The metal in the metal deposition layer is selected from aluminum, silver, bronze, tin or their alloy.