Composite membrane possessing diplex functional characteristice and preparation method

A composite film and dual-function technology, which is applied in the field of composite film and its preparation with dual functional characteristics of optical angular color change and retro-reflective information, can solve the problem of low content of anti-counterfeiting technology, failure to meet copying requirements, anti-counterfeiting information film is not completely transparent, etc. problems, to achieve the effect of overcoming insufficient protection, unique visual effects, and easy identification

Inactive Publication Date: 2005-03-30
SHANGHAI TECHSUN ANTI COUNTERFEITING TECH HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the first-line anti-counterfeiting technology content is low, and the anti-counterfeiting information film itself is not completely transparent, and the protected part of the information is covered, which cannot meet the copying requirements

Method used

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  • Composite membrane possessing diplex functional characteristice and preparation method
  • Composite membrane possessing diplex functional characteristice and preparation method
  • Composite membrane possessing diplex functional characteristice and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as figure 1 As shown, the anti-counterfeiting film includes a photochromic information layer and a retro-reflective information layer, the photochromic information layer includes photochromic graphic information 2 formed by chiral molecular alignment, and the retroreflective information layer includes Common retroreflective film A and retroreflective layer 6.

[0044] The retroreflective film A includes a refraction implant 5 and an adhesive layer 4 for embedding the implant 5. The implant 5 is spherical and made of polymer resin (a kind of glass beads), and has the characteristics of good roundness, transparency, uniformity, high refractive index and clarity; the adhesive layer 4 is made of polymer resin material, and has high light transmittance, good weather resistance and high toughness specialty.

[0045] The retro-reflective layer 6 for light reflection is made of high-reflectivity AL material, and is coated on the lower surface of the focus layer below the...

Embodiment 2

[0055] Such as figure 2 As shown, the anti-counterfeiting film includes a photochromic information layer and a retro-reflective information layer, the photochromic information layer includes photochromic graphic information 2 formed by chiral molecular alignment, and the retroreflective information layer includes Ordinary retroreflective film A and an information recording layer 7 and a retroreflective layer 6 made of a photosensitive material recorded with reflective graphic information

[0056] The retroreflective film A includes an implant 5 for refraction and an adhesive layer 4 for embedding the implant 5, the implant 5 is spherical, and the implant 5 is made of polymer resin and has the characteristics of good roundness, transparency, uniformity, high refractive index and clarity; the adhesive layer 4 is made of polymer resin material, and has the characteristics of high light transmittance, good weather resistance and high toughness .

[0057] The information recordi...

Embodiment 3

[0068] Such as figure 1 As shown, the anti-counterfeiting film includes a photochromic information layer and a retro-reflective information layer, the photochromic information layer includes photochromic graphic information 2 formed by chiral molecular alignment, and the retroreflective information layer includes Common retro-reflective film A and multi-layer retro-reflective layer 6.

[0069] The multi-layer retro-reflection layer 6 is made by sputtering metal Cr and MgF respectively. 15 nm and 50 nm thick coatings were sputtered on the bottom surface of the adhesive layer below the implant, respectively.

[0070] The retroreflective film A includes an implant 5 for refraction, an adhesive layer 4 for embedding the implant 5, the implant 5 is spherical, and the implant 5 is made of polymer resin and has the characteristics of good roundness, transparency, uniformity, high refractive index and clarity; the adhesive layer 4 is made of polymer resin material, and has the charact...

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Abstract

A composite film with double functions is prepared by binding functional layers of colour changing information following to light angle and reflecting information of regression together with media layer. The prepared film has unique visual result and concealed properties of two-line falseproof.

Description

technical field [0001] The invention belongs to the technical field of anti-counterfeit film materials, and in particular relates to a composite film with dual functional characteristics of light angle discoloration and retroreflection information and a preparation method thereof. Background technique [0002] With the increasing development of the economy, driven by interests, many famous and high-quality commodities, securities, and even important identity documents have been counterfeited, which has brought huge losses to individuals, businesses and the country. Therefore, effective anti-counterfeiting fidelity technology is more and more paid attention to by people, and its development is also faster and faster. [0003] With its strong visual impact, unique physical properties, and easy recognition with naked eyes, photochromic materials have attracted people's attention as soon as they appeared, and have been widely used in the field of anti-counterfeiting. Among them,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B7/12B42D25/36
Inventor 徐良衡宋立君李晓英董兰新葛爱明
Owner SHANGHAI TECHSUN ANTI COUNTERFEITING TECH HLDG
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