Other Security Features

Various anti-counterfeiting features can be embedded or printed on hologram stickers, providing a diverse range of options to enhance security measures.

Indeed, anti-counterfeiting features like Optical Lens, Peel-off to Reveal Covert Information, Heat-Sensitive Ink, Optical Variable Ink, Magnetic Ink, and Text Disappears after Dripping offer additional layers of security to hologram stickers, contributing to a comprehensive and robust authentication system.

Optical Lens: Similar to a cat's eye effect, hologram stickers can incorporate features where text or simple images are inserted, adding a distinctive visual element to enhance the overall security and authenticity of the holograms.

The Optical Lens feature employs specialized mirror technology to create a local information image on the holographic mark that appears out of focus, forming a blurred state. When exposed to point light sources like spotlights or flashlights, or ultraviolet rays such as sunlight or UV lamps, it restores the image effect akin to a cat's eye pearl ball, enhancing its visual appeal and security characteristics.

Peel-off to Reveal Information: The Peel-off to Reveal Covert Information feature is designed to expose hidden content between layers upon peeling off the hologram sticker. Once peeled, the substrate becomes difficult to restore. This covert information can encompass text, images, random alphanumeric codes, and QR codes, adding an extra layer of security to the holographic sticker.

Thermochromic Ink: Heat-Sensitive Ink, commonly categorized as reversible and irreversible inks, serves as an anti-counterfeiting measure. These inks can change color when rubbed by hand or due to predetermined temperatures. Another variant reveals hidden information upon heating. These versatile inks are readily accessible and contribute to the holographic sticker's security features.

The manufacturing process for heat-sensitive ink involves dissolving photochromic pigments in a solvent, with the addition of a binder for specific purposes. Alternatively, the method includes dissolving photochromic pigments into overlapping monomers, pulverizing these polymer ultrafine particles, and transforming them into powders for use as pigments. This technique contributes to the development of effective and secure holographic stickers.

Optical Variable Ink: Optically Variable Inks exhibit two distinct colors when observed from the front or side under white light, with the hues changing based on the viewing angle. This characteristic enhances the visual appeal and security of holographic stickers.

Magnetic Ink: Magnetic Ink incorporates iron oxide powder into the ink, maintaining its magnetic properties through magnetization. This allows printed information to be authenticated using a magnetic reader, enhancing security features.

Hydrochromic Ink: Reversible ink employs special silk screen printing ink, typically appearing milky white. Patterns or text printed with this ink become colorless upon exposure to water, reverting to their original color after evaporation, providing a reversible feature for authentication.