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Security element with metallized structured surface

A security element, metal technology, used in the field of security elements with a metallized structural surface

Active Publication Date: 2021-12-07
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, better secure elements are needed

Method used

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  • Security element with metallized structured surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0024] Embodiment 1 is a security element comprising: a substrate having a first structured major surface and a second structured major surface; a first metallic layer coated on the first structured major surface, wherein the first The metal layer has a transparency of between 10% and 90%; and a second metal layer is coated on the second structured major surface.

Embodiment approach 2

[0025] Embodiment 2 is the security element of embodiment 1, wherein the second metal layer has a transparency of less than 50%.

Embodiment approach 3

[0026] Embodiment 3 is the security element of any one of embodiments 1 to 2, wherein the first metal layer or the second metal layer is a continuous single layer.

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PUM

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Abstract

The invention discloses a security element with a metallized structured surface, the security element comprising: a substrate having a first structured main surface and a second structured main surface; a first metal layer, the A first metal layer is coated on the first structured major surface, wherein the transparency of the first metal layer is between 10% and 90%; and a second metal layer, the second metal layer is coated on the second structured major surface.

Description

Background technique [0001] Product counterfeiting is on the rise in many industries. For protection, valuable items such as branded items are usually provided with security elements which allow verification of the authenticity of the item and at the same time serve as protection against unauthorized copying. Security elements play a special role in protecting authenticity, since they cannot be reproduced even with the most modern copiers. However, better secure elements are needed. Contents of the invention [0002] Therefore, in one aspect, the present invention provides a security element comprising: a substrate having a first structured main surface and a second structured main surface; a first metal layer coated on the first structured main surface on the surface, wherein the transparency of the first metal layer is between 10% and 90%; and on the second metal layer, which is coated on the second structured major surface. [0003] In another aspect, the present discl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B42D25/328B42D25/373B42D25/47G09F3/02
CPCB42D25/328B42D25/373B42D25/47G09F3/02B42D25/324B42D25/351
Inventor 余大华道格拉斯·S·邓恩威廉·布莱克·科尔布
Owner 3M INNOVATIVE PROPERTIES CO