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Method for printing a security element and security element

A technology of silk screen printing and valuable documents, which is applied in printing, printing of special varieties of printed matter, printed matter, etc.

Inactive Publication Date: 2006-03-22
KBA NOTASYS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, the advantage of such guards is that they are easy to print on protected documents and can be inspected with simple equipment or even the naked eye, but are impossible to reproduce with current printers, scanners and photocopiers

Method used

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  • Method for printing a security element and security element
  • Method for printing a security element and security element
  • Method for printing a security element and security element

Examples

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Embodiment Construction

[0022] figure 1 An embodiment of the method according to the invention is described in block diagram form. In a first step, the background is first printed onto the substrate, for example using offset printing methods known in the prior art. The background can be monochromatic or multi-colored, and the background can be printed using known methods in the prior art. According to this method, the pattern will be transferred from an "offset plate cylinder", inked by an ink roller, to a blanket cylinder ("blanket cylinder"), which in turn will transfer the pattern to a substrate such as paper superior. Patent application FR2222214 describes an offset printing method and an offset printing machine. The content of this application, especially this part concerning offset printing, is incorporated into this application by reference. By way of another example, patent application US 6101939 describes another printing press using the offset printing method, which is hereby incorporat...

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Abstract

The process involves printing a semi-transparent security unit (2) with variable optical ink on a base (1) of a substrate. The security unit is printed to cover the base. The semi-transparent security unit is printed by a serigraphy process. A sifter utilized in the serigraphy process comprises 180 to 230 lines per inch according to X and Y directions of the sifter. An Independent claim is also included for a value-paper.

Description

technical field [0001] The invention relates to a method for printing security elements of paper securities, such as banknotes, cheques, credit cards, passports or identity documents and other similar documents. [0002] The invention also relates to a security unit for paper value documents, such as bank notes, passports, identity documents and the like. Background technique [0003] In the field of paper value documents, especially banknotes, there is a growing need for protective elements which serve as protection against forgery. Computers, scanners, and photocopiers have undergone significant technological advancements in recent years, and high-performance devices are now available at reasonable prices. As the performance of such devices becomes better, new protective elements for paper value documents such as banknotes, cheques, credit cards, passports or identity documents and other similar documents need to be developed, wherein the performance of these elements the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M3/14B42D15/00
CPCB41M3/144B42D25/29B41M3/14B42D15/00
Inventor F·焦里G·福雷斯蒂
Owner KBA NOTASYS SA
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