D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 21/40 (2006.01) A63F 3/06 (2006.01) B42D 15/00 (2006.01) D21H 21/28 (2006.01)
Patent
CA 2224506
This invention concerns security-type fibrous media for writing or printing (e.g., paper). In particular, the invention pertains to opaque security paper that can be authenticated by tearing, which cannot be delaminated or falsified, is economical and printable, is characterized by the fact that it is made of a single web of fibres that is homogeneous in thickness and is obtained from a single spray of fibres; in terms of thickness, it comprises at least one more or less median layer (2) of a given colour and at least one outer layer (3, 4) that is white or different-coloured/darker-coloured (C1, C3) than the median layer (C2, 2). Preferably, C1 and C3 = C2 discoloured and C2 = dark colour. The invention also involves the process for producing the said paper and the articles that can be made with the said paper (e.g., scratch-and-win lottery tickets).
La présente invention concerne des supports fibreux d'écriture et/ou d'impression, de sécurité (e.g. papier). En particulier, l'invention vise un papier de sécurité opaque, authentifiable par déchirure, non délaminable, infalsifiable, économique et imprimable, caractériséen ce qu'il est constitué notamment par un seul et même matelas fibreux, homogène notamment dans son épaisseur et obtenu à partir d'un seul jet fibreux, et en ce qu'il comprend, dans son épaisseur, au moins une tranche (2) sensiblement médiane de couleur (C2) et au moins une tranche (3,4) externe blanche ou de couleur (C1, C3) différente et/ou moins foncée que celle (C2) de la tranche médiane (2). De préférence, C1 et C3 = C2 décolorée et C2 = couleur foncée. L'invention a également pour objet le procédé d'obtention dudit papier et les articles réalisés à partir dudit papier (e.g. ticket de jeu à gratter).
Aussedat-Rey
International Paper Sa
Robic
LandOfFree
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