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A kind of laser holographic anti-counterfeiting film and preparation method thereof

A laser holography and laser anti-counterfeiting technology, applied in identification devices, instruments, seals, etc., can solve the problems of over-specialized anti-counterfeiting marks and inapplicable products, and achieve large-scale production and application, low cost, and improved temperature resistance. The effect of weather resistance

Active Publication Date: 2020-07-14
嘉兴信艺防伪新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once a certain enterprise determines to use a certain anti-counterfeiting method and mark, it will be used thousands of times on the same product, and the manufacturer may also prevent counterfeiting in large quantities.
[0007] (4) Anti-counterfeiting marks are too specialized
However, with the passage of time, this anti-counterfeiting technology has been unable to apply to current products due to the continuous change of materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A laser holographic anti-counterfeiting film and a preparation method thereof, the specific process of preparing the laser anti-counterfeiting film is as follows:

[0036]First, add 30kg of paraffin wax, 20kg of Danish gum, and 20kg of tricresyl phosphite to the hot-melt kettle, and raise the temperature to 140°C. After the materials are melted, add 29kg of vinyl fluoride-vinyl acetate copolymer resin and 1kg of 1,1,3- Tris(2-methyl-4-hydroxy-5-tert-butylphenyl), continue to heat up to 165°C, react for 1.2h, and after the material is completely melted, use nitrogen to press it into cold water, pull, cool and cut granules to obtain the adhesive; mix 3kg of the obtained adhesive with 10kg of ink, stir to dissolve the adhesive in the ink, apply the ink to the surface of the polyethylene terephthalate film, and add laser anti-counterfeiting information coating to form a uniform adhesive layer with a thickness of 5-10 μm; use a coating machine with a wire roller and a linear...

Embodiment 2

[0039] A laser holographic anti-counterfeiting film and a preparation method thereof, the specific process of preparing the laser anti-counterfeiting film is as follows:

[0040] First, add 15kg of paraffin wax, 40kg of rosin, and 15kg of diisooctyl isophthalate to the hot-melt kettle, and raise the temperature to 130°C. After the materials are melted, add 27kg of vinyl fluoride-vinyl acetate copolymer resin and 3kg of 2,6- Ditert-butyl-4-methylphenol, continue to heat up to 165 ° C, react for 1.5 hours, and after the material is completely melted, use nitrogen to press it into cold water, draw, cool and pelletize to obtain the adhesive; 2.5 kg of the obtained adhesive is mixed with 10 kg of ink, stirred to dissolve the adhesive in the ink, and the ink is coated on the surface of polyethylene terephthalate film, and the information coating with laser anti-counterfeiting is added to form a uniform, Adhesive layer with a thickness of 5-10 μm; use a coater with a wire roller and ...

Embodiment 3

[0043] A laser holographic anti-counterfeiting film and a preparation method thereof, the specific process of preparing the laser anti-counterfeiting film is as follows:

[0044] First, add 15kg of paraffin wax, 35kg of coumarone resin, and 10kg of tricresyl phosphite to the hot-melt kettle, and raise the temperature to 140°C. After the materials are melted, add 39kg of vinyl fluoride-vinyl acetate copolymer resin and 1kg1,1 while stirring, 3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl), continue to heat up to 170 ° C, react for 1 hour, and after the material is completely melted, use nitrogen to press it into cold water, pull it, cool it and Cut into pellets to obtain an adhesive; mix 2kg of the obtained adhesive with 10kg of ink, stir to dissolve the adhesive in the ink, apply the ink to the surface of the polyethylene terephthalate film, and add a laser Anti-counterfeiting information coating, forming a uniform adhesive layer with a thickness of 5-10 μm; using a coating mach...

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Abstract

The invention belongs to the technical field of laser anti-counterfeiting, and provides a laser holographic anti-counterfeiting film and a preparation method thereof. Firstly, a binding agent is prepared, the prepared binding agent and ink are mixed, the mixed material coats the surface of a base film, an anti-counterfeiting information coating material is added to form an ink layer, and finally, a polyurethane membrane coats the ink layer to obtain the laser holographic anti-counterfeiting film. Compared with a conventional method, the method provided by the invention uses the polyurethane membrane as a laser holographic anti-counterfeiting film, basic characteristics and excellent performance of a common aluminum coated laser holographic anti-counterfeiting film are retained, and meanwhile the binding agent reinforces interface bonding between the base film and the polyurethane membrane, improvement of film forming strength and toughness is facilitated, temperature resistance and weathering resistance of the film are improved, the reflectivity and the refractive index of the polyurethane membrane are effectively improved, anti-counterfeiting performance is reinforced, the process is simple, the costs are low and the laser holographic anti-counterfeiting film is easy to produce in a large scale.

Description

technical field [0001] The invention belongs to the technical field of laser anti-counterfeiting and provides a laser holographic anti-counterfeiting film and a preparation method thereof. Background technique [0002] my country's anti-counterfeiting technology is gradually formed and developed under the conditions of developing a socialist market economy. Because the current legal system is not perfect and the market is not standardized, some criminals at home and abroad specialize in counterfeiting famous or best-selling products in order to seek huge profits. Fake goods and false ones have formed a certain scale of counterfeit goods market, as well as various counterfeit banknotes, certificates, etc., which have become a dirty current hindering the healthy development of my country's economy. The development of anti-counterfeiting technology and the formation of anti-counterfeiting industry are the needs of the development of my country's socialist market economy. [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/04C09D11/106C09D11/12C09D175/04C09D5/33G09F3/02
CPCC08J7/042C08J2323/12C08J2367/02C08J2427/14C08J2475/04C09D5/004C09D11/106C09D11/12C09D175/04G09F3/0294
Inventor 陈庆司文彬
Owner 嘉兴信艺防伪新材料股份有限公司
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