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Laser film characteristics (II)
Release time:
2024-07-30
Flexible laser holographic anti-counterfeiting film The flexible laser holographic anti-counterfeiting film includes a film base layer, a reflective layer, and an anti-counterfeiting identification layer. Its structural features: the reflective layer is a layer of high-refractive-index resin coated on the film layer, and the anti-counterfeiting identification layer is a grating printed on the resin reflective layer to form a laser holographic pattern. The material of the film base layer can be selected from BOPP, PET, and PE; the resin reflective layer is a polyurethane resin, polyphenyl resin, and amino resin that can play a single-layer high-refractive role. By coating a layer of resin reflective layer on the film base layer and then printing a laser holographic image layer on the resin reflective layer, a practical flexible transparent laser holographic anti-counterfeiting film can be made.
Flexible laser holographic anti-counterfeiting film The flexible laser holographic anti-counterfeiting film includes a film base layer, a reflective layer, and an anti-counterfeiting identification layer. Its structural features: the reflective layer is a layer of high-refractive-index resin coated on the film layer, and the anti-counterfeiting identification layer is a grating printed on the resin reflective layer to form a laser holographic pattern. The material of the film base layer can be selected from BOPP, PET, and PE; the resin reflective layer is a polyurethane resin, polyphenyl resin, and amino resin that can play a single-layer high-refractive role. By coating a layer of resin reflective layer on the film base layer and then printing a laser holographic image layer on the resin reflective layer, a practical flexible transparent laser holographic anti-counterfeiting film can be made.
The advantages of flexible laser holographic anti-counterfeiting film are:
1. Since the film base layer is coated with a high-refractive-index resin film, this transparent laser holographic film can be directly used for plastic sealing and surface processing, which expands its application.
2. Since a high-refractive-index resin that is cheaper than an inorganic medium is used, the material cost of the holographic film is reduced, and the combination of the resin and the film base is firm.
3. Since the high refractive index resin coated on the film is denser and smoother than the inorganic medium, it can reduce the scattering of light and improve the reflection efficiency of the film layer. Therefore, the laser holographic pattern formed by this transparent anti-counterfeiting film is bright and clear, which is conducive to consumers' clear identification.
5 Nuclear encrypted anti-counterfeiting laser holographic film The nuclear double ten anti-counterfeiting technology is compounded on the laser holographic film in a way, that is, an encrypted image is formed on the laser holographic film to improve the anti-counterfeiting function of the laser hologram.
Optical interference color-changing film
The optical interference color-changing film is based on the principle of multi-beam interference of parallel plates and is designed according to the principle of interference effect between multi-layer optical films. Its anti-counterfeiting principle is that each multi-layer film structure has its own specific reflection spectrum curve. This reflection spectrum changes with the change of the incident angle, that is, with different viewing angles, the color changes, such as golden, green, brown, blue, gray and other colors.
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