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A heat-resistant holographic anti-counterfeiting film

一种全息防伪、耐热的技术，应用在防伪领域，能够解决易受热发黄、粘附、防伪信息层粘流变形等问题，达到不破坏清晰度、提高稳定性、保证透明性的效果

Active Publication Date: 2019-11-29
ZHONGSHAN LIFENG ADHESIVE PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This has the following defects: one is that the heat resistance of the existing anti-counterfeiting information layer is not high. The molding temperature will lead to the deterioration of the molding effect, and the clarity of the obtained holographic pattern is not high; the second is that in the process of molding and duplicating the hologram, the anti-counterfeiting information layer and the molding board are not easy to peel off, and the resin of the anti-counterfeiting information layer is easy to stick to the molding board. Attached, even part of the holographic stripes will be lost, destroying the integrity of the hologram and affecting the clarity of the hologram

Method used

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  • A heat-resistant holographic anti-counterfeiting film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 As shown, the heat-resistant holographic anti-counterfeiting film of the present invention is a layered structure, which sequentially includes a carrier layer (1), an anti-counterfeiting information layer (2), a release layer (3) and an adhesive layer (4) from outside to inside. The carrier layer (1) is a polyethylene terephthalate film, the anti-counterfeiting information layer (2) is a photocurable heat-resistant acrylic resin layer, and its heat-resistant temperature is above 260°C, and the curable heat-resistant acrylic resin layer Nanoscale fumed silica is added to the resin, the particle size of the nanoscale fumed silica is 20nm, the anti-counterfeit information layer (2) has a concave-convex holographic pattern, and the release layer (3) is poly Tetrafluoroethylene coating, the adhesive layer (4) is a hot melt adhesive layer. The thickness of the carrier layer (1) is 0.5µm, the thickness of the anti-counterfeiting information layer (2) is 1µm, ...

Embodiment 2

[0029] The structure of the heat-resistant holographic anti-counterfeiting film in this example is the same as the preparation method and Example 1, except that the particle size of nanoscale fumed silica in the curable heat-resistant acrylic resin is 35nm, and the carrier layer ( 1) has a thickness of 1 µm, the anti-counterfeiting information layer (2) has a thickness of 2 µm, the release layer (3) has a thickness of 0.5 µm, the adhesive layer (4) has a thickness of 1 µm, and the anti-counterfeiting The texture depth of the holographic pattern in the information layer (2) is 1 µm.

Embodiment 3

[0031] The structure of the heat-resistant holographic anti-counterfeiting film in this example is the same as that of Example 1, except that the anti-counterfeiting information layer (2) is a heat-cured heat-resistant acrylic resin layer, and the curable heat-resistant acrylic resin layer The particle size of the nanoscale fumed silicon dioxide is 50nm, the release layer (3) is a fluorocarbon coating, and the bonding layer (4) is a pressure-sensitive adhesive layer. The thickness of the carrier layer (1) is 0.8µm, the thickness of the anti-counterfeit information layer (2) is 1.5µm, the thickness of the release layer (3) is 0.35µm, the adhesive layer (4) The thickness is 0.8 µm, and the texture depth of the holographic pattern in the anti-counterfeiting information layer (2) is 0.8 µm.

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Abstract

The invention discloses a heat-resistant holographic anti-counterfeiting film, which is a layered structure, which sequentially includes a carrier layer, an anti-counterfeiting information layer, a release layer and an adhesive layer from outside to inside, and the carrier layer is polyethylene terephthalate film, the anti-counterfeiting information layer is a curable heat-resistant acrylic resin layer, nano-scale fumed silicon dioxide is added to the curable heat-resistant acrylic resin, the anti-counterfeiting information layer has a concave-convex holographic pattern, and the release film The first layer is a fluorine-containing coating, and the adhesive layer is a hot-melt adhesive layer or a pressure-sensitive adhesive layer. The anti-counterfeiting information layer of the heat-resistant holographic anti-counterfeiting film of the present invention adopts a heat-resistant acrylic resin layer added with nano-scale fumed silica, which can withstand a molding temperature above 260°C and has good transparency. The existence of the release layer makes the anti-counterfeiting information The layer can be easily peeled off from the molded plate after molding to ensure the integrity and high clarity of the anti-counterfeit information, and the anti-counterfeit information layer is cured after the film is pressed, which further improves the stability of the holographic pattern.

Description

technical field [0001] The invention relates to a heat-resistant holographic anti-counterfeiting film, which belongs to the technical field of anti-counterfeiting. Background technique [0002] In recent years, with the development of science and technology, anti-counterfeiting technology has developed rapidly, and anti-counterfeiting packaging for various products has also been widely used. The holographic anti-counterfeiting mark integrating multiple anti-counterfeiting technologies is widely used in trademarks, food, medicine, Cosmetics and other fields of daily life. [0003] Holographic anti-counterfeiting refers to an anti-counterfeiting technology completed by using laser color hologram plate-making technology and molded replication technology. At present, holographic anti-counterfeiting film generally uses PET film or OPP film as a carrier, and then coats anti-counterfeiting information layer and protective layer on the carrier in turn. The hologram is pressed into...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09F3/02
CPCG09F3/02G09F2003/0232G09F2003/0257
Inventor 丁一沈锋马福文
Owner ZHONGSHAN LIFENG ADHESIVE PROD CO LTD
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