“There’s no white ink layer.”
Printing inks are see-through and CMYK has no white, so on clear film, metallic, kraft or dark stock, colours look faint and anything meant to be white simply isn’t printed. The printer needs a separate white layer: a spot colour named as they ask (usually “White”), set to overprint, covering every area that should be white or opaque. Without it they can’t print any white at all, so the job stops.
Updated November 3, 2026 · by Azaan Ali, print designerWhy printers ask for this
On white paper, the paper itself is the white: every highlight and every white letter is just bare paper. Print on a clear sticker, a silver pouch or brown kraft and that disappears. Unprinted areas show the material, and colours printed straight onto it look thin and tinted by what’s underneath.
Printers that run white ink (digital label presses, UV printers, screen printers) print it as an extra layer, under the colours or on its own. They can’t guess where it should go: under the whole design, only under the logo, or nowhere on a clear window that should stay clear. So they ask for a white layer in the file, drawn by you, in a form their system recognises.
How to set up a white ink layer
- Ask the printer exactly how they want it: the spot colour name (often “White”, sometimes “WHITE” or “W1”), whether it goes on its own layer or its own page, and whether they adjust the edges themselves.
- In Illustrator, add a layer called White above the artwork. Create a swatch with Color Type: Spot Color, named exactly as the printer asked, and give it a colour you can see on screen, such as 100% magenta. The name is what the press reads, not how it looks.
- Copy the shapes that need white onto that layer (Edit → Paste in Place keeps them aligned), merge them with the Pathfinder panel, and fill them with the white swatch at 100%.
- Set those shapes to overprint (Window → Attributes → Overprint Fill), so the white doesn’t knock out the colours printed with it.
- If the printer asks, pull the white in slightly (a choke, often 0.1–0.25 mm) with Object → Path → Offset Path and a negative value, so it never peeks out at the edges.
- Never rely on CMYK white (0/0/0/0) for areas that must be white: on clear material it prints as nothing.
- Garments are different: DTF and DTG printers usually build the white from a transparent PNG themselves, while screen printing on dark shirts needs a proper underbase separation.
Or send it to us
- Build the white layer as a named spot colour, set to overprint, exactly as your printer asks
- Agree with you where white goes: under everything, under selected elements, or as white type on clear
- Choke the white where the printer needs it, so edges stay crisp
- Put barcodes on solid white so they scan through clear or kraft
- Set up varnish, foil and the dieline on their own layers at the same time
Questions
- Do I need white ink on a white label?
- No. White paper or white film does the job. White ink is for clear, metallic, kraft, coloured and dark materials.
- Why does my design look see-through on a clear sticker?
- Because it was printed without white underneath. CMYK inks are transparent, so on clear film colours look like stained glass. A white underbase behind them makes them look the way they do on paper.
- How much does white ink setup cost?
- It’s part of label and packaging setup on the printer’s dieline, from $75. Send the artwork and the printer’s spec in the chat for a fixed price before anything starts.
Terms on this page: White ink (white underbase), Overprint, Pantone (spot colour), Dieline.
Other things printers say
More on this kind of work: Labels, stickers & packaging.
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