WhiteLayer Studio knowledge
What is white ink printing?
Many process inks are not fully opaque. A white substrate naturally provides brightness, while a black textile, colored film or transparent surface does not. A separate white layer beneath the color artwork creates that bright foundation.
The white channel is separate production information. It may cover the full artwork, selected areas only, or form visible white design elements. The correct coverage depends on the material, print system and intended result.
Underbase or visible white
An underbase sits below the process colors and improves opacity. Visible white remains part of the design. Both require a clearly defined production layer rather than a white object that exists only inside the regular color artwork.
- Underbase: supports brightness on dark materials.
- Visible white: creates text, outlines or design elements.
- Selective white: covers only necessary areas.
Typical applications
White ink appears in textile transfers, DTF and UV-DTF workflows, transparent stickers, dark papers, packaging and promotional products. Always confirm whether your provider expects a spot color, separate file or additional PDF page.
- Dark textiles and colored surfaces
- Transparent or translucent films
- White lettering and fine white details
Why precision matters
An underbase that is too small can create dark edges and weak colors. If it is too large, a white halo may appear. Controlled choking, white tonal values and identical registration between both pages are essential. Test new material combinations before production.
Workflow
Step by step
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01
Prepare transparent artwork
Check fine edges, shadows and partially transparent areas.
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02
Derive the white area
Create a separate mask from the artwork transparency and choose what should be underprinted.
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03
Check edge and coverage
Adjust the white edge, tonal values and knockouts for the intended process.
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04
Export both pages
Deliver color and white pages clearly, in register and in the order required by your print provider.
FAQ
Frequently asked questions
Is an underbase necessary on white material?
Usually not, because the substrate already provides a white foundation. Visible white design elements or production requirements may still need a white channel.
Is a white object automatically a white channel?
No. A white RGB or CMYK object is still part of the color artwork. Production commonly needs white as a separate layer, spot color or page.
How do I avoid a white halo?
The underbase is often reduced slightly. The exact amount depends on resolution, material and print system and should be agreed with the production provider.
Does WhiteLayer Studio control the printer?
No. It prepares a color page and White Layer for a manual PDF workflow. RIP settings, machine control and manufacturer profiles remain in the production system.