METHOD FOR PRODUCING SAFETY (VARIANTS) AND SAID SAFETY PAPER (VARIANTS)

The invention relates to methods for producing safety paper which is used for producing fraud-proof printing products. In the first variant, the inventive method for producing safety paper consists in forming a paper web with a protective strip of 2 mm in width which is incorporated into said web du...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: CHERNYSHOV, SERGEY IVANOVICH, VITVININ, VALERIY ANATOLIEVICH, KURYATNIKOV, ANDREY BORISOVICH, PISAREV, ALEXANDR GEORGIEVICH, OSTREROV, MIKHAIL ANATOLIEVICH, TURKINA, ELENA SAMUILOVNA, TRACHUK, ARKADIY VLADIMIROVICH, BUSYREV, OLEG STANISLAVOVICH, BORISOV, BORIS PETROVICH, STRYAPUSHKIN, PETR ALEXANDROVICH, ERMAKOV, STANISLAV GLEBOVICH, PETROV, IGOR MIKHAILOVICH
Format: Patent
Sprache:eng ; fre ; rus
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The invention relates to methods for producing safety paper which is used for producing fraud-proof printing products. In the first variant, the inventive method for producing safety paper consists in forming a paper web with a protective strip of 2 mm in width which is incorporated into said web during the formation thereof on a wire cylinder mould, wherein the protective strip is incorporated into a pulp in such a way that, prior to a contact thereof with the cylinder, a fiber layer is formed, except for the areas on the cylinder surface, where the layer is not formed for lack of filtering capacity. The protective strip is positioned on the cylinder in such a way that a part of the surface thereof is merged with the cylinder elements and free access areas in the form of widows are formed on a paper wire side. The areas devoid of filtering property are formed on the cylinder surface by covering the wire with a filigree paper or by moulding a waterproof material thereon or by perforating through holes in the wire. On the side opposite to the wire side, the protective strip is totally or in part opened and, where the windows coincide on the wire side and the protective strip totally or in part exits, through windows are formed on the opposite side of the paper. In the second, third and fourth variants, the inventive method for producing safety paper consists in forming a paper web with a protective strip with a width larger than 2 mm in such a way that the protective strip exits on the two sides of the paper web and a through window effect is obtained. L'invention concerne des procédés de fabrication de papier protégé contre la contrefaçon, utilisé pour fabriquer des produits des arts graphiques protégés contre la contrefaçon. Dans un premier mode de réalisation, dans ce procédé de fabrication de papier protégé contre la contrefaçon, on forme une toile de papier avec une bande de protection dont l'épaisseur est supérieure à 2 mm, qui est intégrée à cette toile de papier lors de la formation de celle-ci dans un cylindre à grille; la bande de protection est introduite dans la masse de manière à ce qu'une couche supérieure fibreuse se forme avant son contact avec le cylindre, à l'exception des zones à la surface du cylindre dans lesquelles il ne se produit pas de formation de couche supérieure grâce à l'absence de capacité filtrante. La bande de protection est disposée sur le cylindre de manière à ce qu'une partie de sa surface coïncide avec les éléments du cy