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Light-cured heat-resistant holographic anti-counterfeiting film

A holographic anti-counterfeiting and light-curing technology, applied in the field of anti-counterfeiting, can solve problems such as yellowing, adhesion, loss of holographic stripes, etc., and achieve the effect of not destroying clarity, improving stability, and ensuring integrity.

Inactive Publication Date: 2019-10-29
南通立方新材料科技有限公司
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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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  • Light-cured heat-resistant holographic anti-counterfeiting film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] like 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, the...

Embodiment 2

[0030] 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

[0032] 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 light-cured heat-resistant holographic anti-counterfeiting film; the film is of a layered structure and sequentially comprises a carrier layer, an anti-counterfeiting information layer, a mold release layer and a bonding layer from outside to inside; the carrier layer is a polyethylene terephthalate film; the anti-counterfeiting information layer is a light-cured heat-resistant acrylic resin layer; nano-scale fumed silica is added into the light-cured heat-resistant acrylic resin; a concave-convex holographic pattern is arranged in the anti-counterfeiting informationlayer; the mold release layer is a fluorine-containing coating; and the bonding layer is a hot melt adhesive layer or a pressure-sensitive adhesive layer. According to the anti-counterfeiting information layer in the invention, the light-cured heat-resistant acrylic resin layer with the nano-scale fumed silica is adopted, the mold pressing temperature of more than 260 DEG C can be borne, the transparency is good, the existence of the mold release layer enables the anti-counterfeiting information layer to be easily stripped from a mold pressing plate after being subjected to mold pressing, theintegrity and definition of the anti-counterfeiting information are guaranteed, the anti-counterfeiting information layer is cured after the film is pressed, and the stability of the holographic pattern is further improved.

Description

[0001] This application is a divisional application of a Chinese patent application with the application number 201610667568.8, the application date is August 15, 2016, and the invention title is "a heat-resistant holographic anti-counterfeiting film". technical field [0002] The invention relates to a light-curing heat-resistant holographic anti-counterfeiting film, which belongs to the field of anti-counterfeiting technology. Background technique [0003] 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. [0004] Holographic anti-counterfeiting refers to an anti-counterfeiting technology completed by using laser color hologram plate-making tec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F3/02
CPCG09F3/02G09F2003/0232G09F2003/0257
Inventor 丁一沈锋马福文
Owner 南通立方新材料科技有限公司
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