Abstract: A support provided with a machine-detectable security element, particularly a copying-security element. The security element comprises a first image perceptible to the human visual system, said first image incorporating a second image that is substantially imperceptible to the human visual system.

Abstract: Identity card, comprising a sheet of synthetic material having a decoration pattern as is customary for papers of value and provided with information essential for the identification of the user or the object pertaining to the identity card, said decoration pattern and said information consisting of sublimatable coloring agents dissolved in said synthetic material and bound to said synthetic material. The identity card preferably comprises a sheet of polyester material. The decoration pattern and the information preferably consist of one or more of the coloring agents Sublaprint Blue 70.013, C.I. Disperse Yellow 61, C.I. Disperse Red 60 and/or C.I. Disperse Blue 3.

Abstract: Paper, and especially bank notes, printed with ink that contains micronized wax is coated with cellulose ester or ether. Thereby it becomes soil-repelling and its useful life-time increases considerably.