White Ink printed on Metallic Stock (eg Silver Laminate) appears opaque, and blocks out any metallic qualities. CMYK printed on White Ink will appear non-metallic, like printing on white stock.
“White” – Swatch name for White Ink. Create a spot colour swatch, using a colour other than white, to identify it on screen against the white background.
White Ink should be placed on it’s own artwork layer, typically at the bottom.
CMYK objects should be set to “Overprint”, when printed on top of White Ink.