There're Laser etched transparent serial number, black number and barcode printing to be incorporated on the hologram sticker to add custom design data onto holograms and enhance hologram security.
B. Transparent Laser Etched Sequential number, Transparent Dual/Triple Serial number/Logo, which is engraved/etched by laser beam provides good security for your products & documents. It has much better security feature than ink overprinting sequential number. We can etch different shape image/logo/text on hologram stickers by laser beam engraving. We also can recombine sequential number with some your unique images on hologram sticker such as well as dual, triple numbering.