12White Ink
Printing on transparent, metallic, or colored materials often requires more than standard CMYK setup. White ink and other special printing layers (such as metallic, varnish or foil) must be precisely prepared to ensure accurate color reproduction and visual impact.
White ink is especially important when printing on clear films, transparent labels, or metallic substrates. In these cases, it serves as a white back print — a solid base printed behind CMYK colors to make them appear bright and opaque. Without this layer, colors can look washed out or semi-transparent because the background material shows through. For example, a logo printed directly on a clear sticker without white ink would appear dull when applied to a dark surface.
Depending on the project, white ink can also be used selectively — for instance, to keep some areas transparent while making others fully opaque. This requires carefully defined vector masks or pixel-based channels to control where the white ink is applied.
- 1Printed sticker on transparent foil
- 2Final product with cut sticker shape
- 3White underlay
- 4Color (CMYK or Spot) print
The logo has a white circle in the middle, as intended. White underlay is also necessary in the colored part of the logo to ensure the colors appear vibrant, opaque and true to color.
Our roleOur role is to create and organize all these technical layers properly. We define white ink coverage for the correct level of opacity, build vector paths for special effects and ensure layer names and overprint settings meet the printer’s specifications.