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Patterning holographic anti-counterfeiting device capable of achieving precise aluminum plating and preparing method thereof

A holographic anti-counterfeiting and patterning technology, which is applied to the printing, printing, and printing process of producing special varieties of printed matter. It can solve the problems of low precision and complicated aluminum washing process, achieve good aesthetics, improve anti-counterfeiting functions, and simplify The effect of the preparation process

Active Publication Date: 2019-02-01
WUHAN HUAGONG IMAGE TECH & DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technical scheme of the present invention is aimed at the situation that the accuracy of the current ink registration printing is not high, and the aluminum washing process is complicated, and the method of nano-evaporating aluminum layer can effectively improve the aluminum plating accuracy of the holographic anti-counterfeiting device, and at the same time, it also simplifies the operation process

Method used

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  • Patterning holographic anti-counterfeiting device capable of achieving precise aluminum plating and preparing method thereof
  • Patterning holographic anti-counterfeiting device capable of achieving precise aluminum plating and preparing method thereof
  • Patterning holographic anti-counterfeiting device capable of achieving precise aluminum plating and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0043] (1) Using a 15-micron BOPET film as the substrate film, the substrate layer 1 is obtained;

[0044] (2) For example, by anilox roller coating, the water-based emulsified wax is evenly coated on the PET surface, the coating temperature is 80-120°C, and the speed is 60-90m / min, that is, the release layer 2 is formed;

[0045] (3) Continue to coat the acrylic resin coating on the release layer 2, the thickness of the resin layer is 2 microns, the coating temperature is 80-150°C, and the speed is 60-90m / min;

[0046] (4) Preparation of the micro-nano structure template: first, a holographic photolithography machine is used to photolithography to prepare the second-level concave-convex structure, and the metal nickel plate is obtained by electroforming, and the photoresist is coated on the metal nickel plate, and then prepared with the second level. For the mask plate corresponding to the first-level concave-convex structure pattern, the metal nickel plate and the mask plate...

Embodiment example 2

[0053] (1) take the BOPET pre-coat film of 30 microns as base film, one side of this base film is coated with pre-coat, and this pre-coat and UV coating have stronger adhesive force, i.e. base layer 1;

[0054] (2) on the precoated surface of the substrate layer, adopt the anilox roller coating method to coat a layer of 5 micron UV coating on the substrate layer;

[0055] (3) The preparation of micro-nano structure nickel plate adopts holographic lithography direct writing equipment, designs holographic pattern by Photoshop, then carries out photolithography, adopts high-intensity exposure in the first-level concave area, and the first-level convex area ( The second-level concave-convex structure, holographic area) adopts normal holographic light parameters, and obtains a gradient micro-nano structure through developing and cleaning.

[0056] (3) Lay the UV coating with the master plate of metal nickel, and expose it from the UV surface, and copy the micro-nano structure on th...

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Abstract

The invention discloses a patterning holographic anti-counterfeiting device capable of achieving precise aluminum plating. The device comprises a base material layer, an imaging layer and a back gluelayer which are stacked in sequence; the imaging layer comprises a structure layer and a metal layer which are arranged in a stacked manner, one side of the structure layer is attached to the base material layer, a gradient micro-nano structure is arranged on the other side of the structure layer, and comprises a first concave-convex structure and a second concave-convex structure, the second concave-convex structure is located in the sinking part of the first concave-convex structure, the metal layer is arranged on the protruding face of the first concave-convex structure, the aluminum plating. The aluminum plating difference of the sinking face and the protruding face of the first concave-convex structure forms the hollow-out effect of the metal layer, and the holographic anti-counterfeiting device shows the holographic optical variability anti-counterfeiting effect. According to the technical scheme, for solving the problems that at present, ink sleeving precision is poor, and in the aluminum washing process, the process is complex, the pattering aluminum layer evaporation manner is adopted, the aluminum plating precision of the holographic anti-counterfeiting device can be effectively improved, and meanwhile, the operation flow is simplified.

Description

technical field [0001] The invention belongs to the field of anti-counterfeiting devices, in particular to a patterned holographic anti-counterfeiting device with precise aluminum plating and a preparation method thereof. Background technique [0002] Holographic anti-counterfeiting is a new anti-counterfeiting technology developed by applying laser holographic technology, also known as laser holographic anti-counterfeiting. Laser holography is a stereographic technology developed rapidly after the advent of lasers in the 1960s. With the advancement of other anti-counterfeiting technologies, holographic anti-counterfeiting has also been newly developed and applied. Holographic anti-counterfeiting technology is widely used in the field of anti-counterfeiting due to its characteristics of easy identification, high technological content, easy mass production and difficult duplication. The early holographic anti-counterfeiting technology was a grating effect prepared by the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M3/14B41M3/00
CPCB41M3/00B41M3/14
Inventor 杨志方牟靖文李亚军何亮寇倩倩
Owner WUHAN HUAGONG IMAGE TECH & DEV