Laminated security document containing fluorescent dye giving li

Details Laminated security document containing fluorescent dye giving li Laminated security document containing fluorescent dye giving li

1996-11-12

1998-05-19

Thomas, Alexander

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428 76, 428203, 428916, 283109, 283110, 283902, B32B 300, B42D 1500

Patent

active

057533520

ABSTRACT:
The present invention provides a security document comprising (1) a laminate comprising two laminating elements serving as support and covering element and (2) an information carrier laminated between the laminating elements, at least one laminating element comprising two transparent or translucent plastic sheets serving as outer resin layer and inner resin layer characterized in that in the said at least one laminating element comprising an outer resin layer and an inner resin layer a fluorescent dye is comprised between said outer resin layer and said inner resin layer, said fluorescent dye giving light piping in said laminating element containing said fluorescent dye when irradiated with light having a wavelength between 200 and 1000 nm.

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