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1. IN859/DELNP/2007 - STOCK COMPRISING A MASKING FIELD FOR HIDING A CONFIDENTIAL INFORMATION PATTERN

Office Inde
Numéro de la demande 859/DELNP/2007
Date de la demande 01.02.2007
Numéro de publication 859/DELNP/2007
Date de publication 03.08.2007
Type de publication A
CIB
B42D 15/02
BTECHNIQUES INDUSTRIELLES; TRANSPORTS
42RELIURE; ALBUMS; CLASSEURS; IMPRIMÉS PARTICULIERS
DLIVRES; COUVERTURES DE LIVRES; FEUILLETS MOBILES; IMPRIMÉS CARACTÉRISÉS PAR LEURS ÉLÉMENTS D'IDENTIFICATION OU DE SÉCURITÉ; IMPRIMÉS D'UN FORMAT OU D'UN TYPE PARTICULIER, NON PRÉVUS AILLEURS; DISPOSITIFS FACILITANT LEUR UTILISATION ET NON PRÉVUS AILLEURS; APPAREILS À BANDE MOBILE POUR ÉCRIRE OU LIRE
15Cartes ou imprimés d'un format ou d'un type particulier non prévu ailleurs
02Cartes postales; Cartes de vœux, menus, cartes commerciales ou cartes analogues; Cartes-lettres
Déposants FOFITEC AG
Inventeurs JULES FISCHER
Données relatives à la priorité 00282/05 17.02.2005 CH
01142/04 07.07.2004 CH
01353/04 17.08.2004 CH
1783/04 28.10.2004 CH
Titre
(EN) STOCK COMPRISING A MASKING FIELD FOR HIDING A CONFIDENTIAL INFORMATION PATTERN
Abrégé
(EN)
The invention relates to stock, comprising a masking field on which an information pattern can be printed in such a way that it can be recognised in front of the background of the masking field only once certain manipulations have been carried out The aim of the invention is to increase the security of the confidential information. To this end, the following measures are carried out individually or as a combination: the masking field contains irregularly distributed colour points of between 50 and 400 μm, amounting to an entire surface area of between 0.3 and 0.5 cm per cm ; and/or the masking field consists of a plurality of superimposed printed layers; and/or the masking field is printed with a printing ink, of which at least 50 % is concentrated in a masking field layer, end/or the masking field can be removed, at least partially and/or together with other layers, using an adhesive strip, with a peeling force of between 0-5 N / 50 mm and 2 N / 50 mm according to the Finat test method no. 1; and/or the stock is provided with a thermochromatic reagent which changes colour irreversibly under the effect of heat, from a temperature of 140°; and/or the, stock is provided with a solvent-reactive reagent which changes colour irreversibly in a solvent atmosphere.

Également publié en tant que
RU2007104585