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Method of providing a security document with a security feature, and security document

A technology of security documents and security features, applied in the field of security documents, can solve problems such as unclear

Active Publication Date: 2016-03-16
FAB NACIONAL DE MONEDA Y TIMBRE REAL CASA DE LA MONEDA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at the point of how the tape is intentionally inserted, it is not clear how this would be possible in practice: the tape is introduced into the pulp stock, and there is no action to prevent the tape from forming in this rather detrimental area before it reaches the area where the paper is formed. reference to any means or measures of disintegrate in the environment

Method used

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  • Method of providing a security document with a security feature, and security document
  • Method of providing a security document with a security feature, and security document
  • Method of providing a security document with a security feature, and security document

Examples

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Effect test

example 1

[0116] Manufacturing of custom serial numbered banknotes.

[0117] 1A.- Manufacture of security elements:

[0118] Suitable paper tubes according to the following specifications can be obtained from Papelera de Brandia, S.A.: basis weight 22 g / m 2 , thickness 48 microns, Bendtsen porosity (×4 sheets) 2600ml / min, dry tensile strength 28N / 15mm and 17N / 15mm (longitudinal and transverse, respectively).

[0119] The tube can then be marked in an intaglio printing press made by Giave with a printing cylinder made by Artcyl and engraved by Ziraba. A suitable ink with a viscosity of 32 sCP4 and containing aluminum metal particles can be obtained from SICPA. The printing cylinder can be chemically engraved with a block to have a screen of 36 lines / cm and a cell depth of 34 microns to print on the paper tube 8mm wide strips spaced transversely and continuously printed longitudinally. strips so that the distance between the centers of adjacent strips in the transverse direction is 18 ...

example 2

[0127] Manufacture of passports with numbers and built-in QR codes including the biometric data of the owner.

[0128] 2A.- Manufacture of security elements with metal particles:

[0129] The raw material can be cellophane or cellulose acetate film tubes manufactured by Coopercel; the film can have a basis weight of 30g / m 2 And the thickness is 22 microns. The tube was then able to run in a LeyboldOpticsProM1300 machine at a speed of 12m / s and 4×10 -4 The millibar pressure metallizes 100% of its surface with aluminum particles. Under these conditions, a layer thickness with an optical density of 2.1 can be obtained. The metallized film can then be regularly microperforated with a Nd:YAG laser source tuned to a wavelength of 10,000 nm and a power of 250 W, resulting in circular holes with a diameter of 0.2 mm and arranged 2 mm apart from each other in a staggered configuration. Once metallized, the tube can be cut longitudinally into 18mm wide strips which can be wound on i...

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Abstract

A security document (1) comprises a paper document substrate (11) and a security element (2) embedded in said document substrate (11). The security element comprises an element substrate (21) and a material (22) sensitive to laser light. The method comprises the step of directing laser light (41) onto the document substrate (11) so as to alter said material (22), so as to provide said security element (2) with a detectable marking (3).

Description

technical field [0001] The invention relates to the field of secure documents. Background technique [0002] Security documents, including documents of value such as banknotes and checks and identification documents such as passports and identity cards, are often subject to counterfeiting. In order to increase security and make counterfeiting more difficult, security documents are often provided with so-called security elements which are applied to or inserted into the security document. The security element can, for example, provide a controlled response to external stimuli, and / or provide some visual effect, thereby allowing verification of the authenticity of a document that has included the security element. [0003] The configuration, design and composition of the security element generally tend to remain unchanged once the security element has been incorporated into the security document, eg applied to or inserted into a substrate of the security document, such as a p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H21/40B41M3/14B24D15/00D21H21/42D21H21/48B41M5/24
CPCB41M3/14B41M5/24D21H21/40D21H21/42B42D25/355B42D25/369B42D25/346B42D25/435B42D25/373D21H21/48B42D25/36B42D25/41
Inventor 安东尼奥·奥尔莫斯毛里西奥·拉泽里尼维森特·加西亚胡埃斯
Owner FAB NACIONAL DE MONEDA Y TIMBRE REAL CASA DE LA MONEDA