Abstract:
PURPOSE: A multi-layered luminescent security thread is provided to comprise multi-layered fluorescent substrates having wavelengths different each other. CONSTITUTION: A multi-layered luminescent security thread comprises multi-layered fluorescent substrate having different wavelengths from each other. The florescent substrate has two or more light-emitting wavelengths selected from red, blue, green, and yellow florescence. The red-fluorescent substance emits light in the wavelengths of 610-690 nm.
Abstract:
PURPOSE: A security printed product for reagent person and blind is provided to provide the security printed product capable of forming easily projection printing layer to the security printed product through intaglio groove portion as nerves identification division formed on the edge of the groove portion. CONSTITUTION: A security printed product for reagent person and blind is projected by transferring ink printing layer as nerve identification division on the edge of the security printed product forming the nerves identification division on the edge of the security for print printing plate(100). A printing groove portion(120) which identification division formed in the edge of the printing plate is formed in the depth of 10 ~ 250μm and prints the ink with height of 10 ~ 250μm by transferred and projected. The nerves identification division formed in the printed product is formed as endless pattern at the up and down, left and right and corner part of the boundary which each side part is divided.