MULTILAYER PROTECTIVE MATERIAL AND ITS MANUFACTURING METHOD Russian patent published in 2009 - IPC B42D15/00 G07D7/12 B32B33/00 

FIELD: printing.

SUBSTANCE: invention relates to multi-layer materials, such as paper, cardboard or nonwoven fabric having surface suitable for printing text or graphics, consisting of the base fabric and a layer of the identification made in the form of a luminescent covering layer containing sensitive to UV light identification agent. There is at least one covering layer on the basis fabric coated. Surface profile of identification layer, which corresponds essentially to the natural formation of the base fabric and surface profile of the other covering layers, possibly coated on top of the base fabric in such a way that ensured the identification layer of variable thickness, for example by the method of doctor blade knife coating, so that the covering layer in the areas of the identification layer meeting the ridges of base fabric, coated finer than in the areas of the base fabric furrows. Layer of identification mainly covers the entire surface of the underlying paper, cardboard or nonwoven fabric. Layer of identification is breaking with respect to its intensity in response to UV light, due to changes in the thickness of the coating layer, causing cloud-like appearance.

EFFECT: high degree of counterfeit protection of the declared material, with the simplicity of its identification.

26 cl, 2 dwg