Definition of spot high gloss UV varnish
For a better understanding of what printers mean when they talk about spot high gloss UV varnish, this term is probably worth breaking down into its component parts:
This means that the finish can be applied to just part of a page (unlike a technique such as gloss lamination which must be applied to the whole page).
Glossiness is a description of how reflective something is. High gloss means that the area treated will be highly reflective.
The UV stands for ultraviolet. When dry, a thin coating of varnish cured by UV light creates the shiny finish we’re looking for.