Abstract:
A security substrate may include at least one area for authentication and/or for revealing attempts at forgery using solvents. The at least one area may include individualized polymer- or copolymer-based particles comprising at least one visible or detectable marker. The polymer or copolymer may be at least partially soluble in solvents used for forgery.
Abstract:
The present invention relates to a sectional document (100) comprising: —a support (101) that defines at least two sections (101a, 1010b) connected by at least one fold line (102), —a structure linked to the support (101), especially at the fold line (102), with a possibility of movement relative to the latter and extending at least partially between the two sections (101a, 101b) when the sectional document is folded, the structure comprising: —a fibrous layer (103a, 103b, 104a, 104b), —a substructure (120) comprising a translucent region, —a watermark or pseudo-watermark (10a) borne by the fibrous layer and being superposed at least partially at the translucent region of the substructure, so that the watermark or pseudo-watermark can be observed in light transmitted through the structure, at the translucent region of the substructure, only from the face of the structure situate on the side of the fibrous layer.
Abstract:
The invention provides a structure comprising: a fiber layer; a sub-structure including a translucent region; a watermark or pseudo-watermark carried by the fiber layer and superposed at least in part with the translucent region of the sub-structure, such that, in the translucent region of the sub-structure, the watermark or pseudo-watermark is observable in light transmitted through the structure only from the face of the structure that is adjacent to the fiber layer; and an integrated microcircuit device for communicating with or without contact.
Abstract:
The invention relates to a sheet having a recto face and a verso face together with at least one watermark or pseudo-watermark and such that at least part of said watermark or pseudo-watermark is observable in transmitted light from only one of the faces of said sheet.
Abstract:
The invention relates to a multilayer structure such as a cover paper for a booklet, in particular a passport. The structure includes a radiofrequency identification device having a chip which is received in the thickness of the multilayer structure without generating extra thickness, the materials constituting the various layers of the multilayer structure are selected, as are the thicknesses of said layers, in such a manner that the cover withstands mechanical and thermal shocks, and in particular is capable of being subjected to graining treatment, and/or to decoration treatment by depositing a film by hot transfer under pressure, and/or to lamination treatment while depositing security films.
Abstract:
The present invention relates to a laminating film comprising: a flexible film that is transparent at least in part; a flexible chip fastened to a face of the film; and a thickness-compensating layer, covering the film at least in part around the chip.