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Security element comprising a masked structure comprising a mixture of nanofillers

A technology of security elements and nano-scale fillers, which is applied in the field of security elements of security documents, and can solve problems such as high opacity

Active Publication Date: 2019-04-05
OBERTHUR FIDUCIAIRE SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, such pigments have a relatively high opacity

Method used

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  • Security element comprising a masked structure comprising a mixture of nanofillers
  • Security element comprising a masked structure comprising a mixture of nanofillers
  • Security element comprising a masked structure comprising a mixture of nanofillers

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Embodiment Construction

[0077] In the drawings, the actual corresponding parts of the respective constituent elements are not always adhered to for clarity of the drawings. Furthermore, some layers may have been shown as single layers in the figures, when in reality they are composed of multiple sub-layers. Adhesive layers may not be shown between the various constituent layers.

[0078] figure 1 An exemplary security document 1 according to an exemplary implementation of the present invention is shown.

[0079] The document 1 comprises a substrate 2 formed of one or more thin layers, preferably made of paper.

[0080] The document 1 incorporates a security element 10 according to the invention, which in the example in question takes the form of a thread.

[0081]The security element 10 comprises a carrier 11 made of thermoplastic material which ensures the mechanical strength of the thread. The carrier 11 is made, for example, of a transparent thermoplastic material such as polyethylene terephth...

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Abstract

A security element, preferably a security wire, for a secure document, may include a masking structure for reducing the visibility of a surface of the element when the latter is located inside the document or on the surface thereof, the masking structure comprising a mixture of at least two nanometric fillers.

Description

technical field [0001] The invention relates to security elements, in particular security elements for security documents. Background technique [0002] The expression "security document" is understood to mean an instrument of payment (such as banknotes, checks or meal coupons), an identity document (such as an identity card, visa, passport or driver's license), a lottery ticket, a tourist ticket or pass, a revenue stamp, or even a Tickets for entry to cultural events or sporting events. [0003] It is known to incorporate security threads into paper substrates. The thread is either fully inserted into the body of the paper or, as a variant, at least partially on its surface, especially in the windows. The line usually includes text that appears in transmitted light and is sometimes called Outside of any window, the lines are preferably not visible in reflection, so as not to adversely affect the appearance of the document and so as not to obstruct the visibility of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H17/67B42D15/00D21H21/44D21H21/48D21H21/52
CPCB42D25/355B42D25/378D21H17/67D21H21/44D21H21/48D21H21/52
Inventor 雅克·马希佐德奥雷利·马曼米歇尔·加缪
Owner OBERTHUR FIDUCIAIRE SAS