Spanish to English Tech/Engineering Materials (Plastics, Ceramics, etc.) Box finishings

As it's been explained to me, is some sort of film covering the outside of a product box and it must not reflect ligth (matte finish). Apparently this film is very thin and under extreme heat conditions, air bubbles "appear" between the box and the film. I've found too many techniques on the web and I don't know which one is the one I want. Thank you for your help :)