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False-proof thin film and its preparing method

A technology of thin film and reflective film, which is applied in the direction of instruments, display devices, advertisements, etc., can solve the problems of complex process and high cost of reflective information layer, and achieve the effect of strong anti-counterfeiting function, low cost, and not easy to imitate

Active Publication Date: 2006-02-22
SHANGHAI TECHSUN ANTI COUNTERFEITING TECH HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the object of the present invention is to provide an anti-counterfeiting film and its preparation method with dual characteristics of stereo holography and reflective information changing with the viewing angle, which can effectively overcome the holographic layer of the existing anti-counterfeiting label which is easy to be copied and the process of the reflective information layer is complicated. , costly disadvantages

Method used

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  • False-proof thin film and its preparing method
  • False-proof thin film and its preparing method
  • False-proof thin film and its preparing method

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Such as figure 1 As shown, the anti-counterfeiting film includes a three-dimensional holographic layer and a reflective information layer. The three-dimensional holographic layer includes a three-dimensional holographic film 2 made of a photosensitive material recorded with three-dimensional graphic information. A retroreflective film a and a reflective information film 7 made of photosensitive material recorded with reflective graphic information, the reflective information film 7 is made of acrylic monomer, and implanted in the retroreflective film The bottom of the underlying adhesive layer is coated as a 10-60 nm thick coating.

[0038] The retro-reflective film a includes an implant 5 for refraction, an adhesive layer 4 for embedding the implant 5 and a retro-reflective layer 6 for reflection, wherein the retro-reflective layer 6 adopts a high-reflectivity Made of ZnS material, and sputtered on the bottom of the reflective information film 7; the implant 5 is sphe...

Embodiment 2

[0048] Such as figure 2 As shown, the anti-counterfeiting film includes a three-dimensional holographic layer and a reflective information layer. The three-dimensional holographic layer includes a three-dimensional holographic film 2 made of a photosensitive material recorded with three-dimensional graphic information. A retroreflective film a and a reflective information film 7 made of materials with different refractive indices by sputtering, which record reflective graphic information and have a reflective effect. The reflective information film 7 is made by sputtering metal Cr and MgF respectively. become. And sputtering to form 15nm and 50nm thick coatings on the bottom surface of the adhesive layer 4 under the implant 5 respectively.

[0049] The retro-reflective film a includes an implant 5 for refraction, an adhesive layer 4 for embedding the implant 5 and a retro-reflection layer composed of a reflective information film 7 for reflection, and the implant 5 It is sp...

Embodiment 3

[0058] Such as image 3 As shown, the anti-counterfeiting film includes a three-dimensional holographic layer and a reflective information layer. The three-dimensional holographic layer includes a three-dimensional holographic film 2 made of a photosensitive material recorded with three-dimensional graphic information. A retroreflective film a and a reflective information film 7 made of photosensitive material recorded with reflective graphic information, the reflective information film 7 is made of acrylic monomer, and implanted in the retroreflective film The bottom of the underlying adhesive layer was coated as a 60 nm thick coating.

[0059] The retro-reflective film a includes an implant 5 for refraction, an adhesive layer 4 for embedding the implant 5 and a retro-reflective layer 6 for reflection, wherein the retro-reflective layer 6 adopts a high-reflectivity Made of ZnS material, and sputtered on the bottom of the reflective information film 7; the implant 5 is spheri...

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Abstract

This invention relates to one anti-false film, which comprises space holographic layer and reflection layer, wherein, the front comprises space information film with light sensing materials; the reflection layer comprises strengthening reflection effect regress film and the reflection information film with reflection graphic information. The process method comprises the following steps: independently processing the said holographic layer and reflection layer; then locating one layer to connect medium layer between holographic layer and reflection layer; finally combing the space holographic layer and said reflection layer.

Description

technical field [0001] The invention relates to an anti-counterfeit film applied in the field of anti-counterfeit technology, in particular to an anti-counterfeit film with dual characteristics of three-dimensional holography and reflective information changing with viewing angle and a preparation method thereof. Background technique [0002] In daily life, in order to prevent their products from being counterfeited, merchants usually paste various anti-counterfeiting marks on their products, such as barcodes on brand-name tobacco and alcohol, car film on high-end cars or steel stamps on electrical products At the same time, government departments often attach some unique anti-counterfeiting marks to the driver's license, degree certificate or business license issued by them to prevent counterfeiting; The certificates with anti-counterfeiting marks are getting more and more attention. For example, my country has begun to implement a new generation of re...

Claims

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Application Information

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IPC IPC(8): G09F3/02G09F19/12
Inventor 徐良衡李晓英宋立君杨凯葛爱明
Owner SHANGHAI TECHSUN ANTI COUNTERFEITING TECH HLDG
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