The core technology behind laser-effect cardstock lies in its surface coating process. Techniques such as vacuum aluminizing or optical coating are used to apply a thin, metallic-sheen film to the cardstock surface; this layer reflects specific wavelengths of light, creating a rainbow-like laser effect. The material typically consists of a base layer, a coating layer, and a protective layer: the base usually employs high-density cardstock for structural strength, the coating layer provides optical properties, and the protective layer enhances wear and moisture resistance.
This material offers three key technical advantages: first, it boasts excellent moisture resistance, as the film layer blocks water vapor and prevents the packaged contents from becoming damp; second, it is highly resistant to fading, with an optical coating that is more stable than standard printing inks and does not easily yellow over time; and third, it offers good foldability-specially treated cardstock remains flat even after repeated folding, making it ideal for gift boxes that require opening and closing.
