To put transparent serial no. on the hologram sticker,add  logistic function to a security hologram sticker.                   

Do not like normal printing serial no. on sticker, our serial no. is demetalized by laser beam, so it is transparent, this makes it is impossible for counterfeiters to do the fake sticker with serial no.

Another advantage for the transparent serial no. is that it can show the color of the bottom print. Compare with the traditional black color printed serial no. , tranparent serial no. helps to make a harmony layout of the packaging.