Water-based screen printing is the premium choice for t-shirt graphics on light-colored fabrics. Unlike plastisol, which sits on top of the fabric as a plastic layer, water-based ink penetrates into the fiber — becoming part of the fabric rather than a coating on it. The result is a print that feels almost like the fabric itself, with no rubber-like hand feel and no cracking over time.
This is the technique used by most premium basics brands for chest logos, large back graphics, and any print where hand feel is part of the product experience.
Use water-based for light-colored fabrics where you want a soft, breathable print. Use plastisol for dark fabrics or when you need maximum color opacity and durability.
Water-based vs. plastisol
Why it doesn't work well on dark fabrics
Water-based ink is translucent — it integrates with the fabric color beneath it rather than covering it. On a white or light-colored fabric, the ink color reads true. On a navy or black fabric, the ink is absorbed into the dark base and loses vibrancy — colors look washed out, and white becomes grey.
There are discharge variants of water-based ink that work on darks by removing the fabric dye before depositing the ink color, but this adds complexity and cost. For straightforward printing on dark fabrics, plastisol is the more practical choice.
Production specs for your tech pack
| Spec | Value | Notes |
|---|---|---|
| Print method | Screen printing | Not DTG or sublimation |
| Ink type | Water-based pigment | Low VOC, no PVC or phthalates |
| Fabric suitability | White and light colors | Not recommended for dark fabrics |
| Color reference | Pantone TCX or Pantone C | Specify per color in design |
| Placement | Specify in mm from reference point | e.g. "Center chest, 7 cm below neckband seam" |
| Strike-off | Required before bulk | Printed sample for approval before full run |
In FlatLabs PRO, the print section of your spec sheet includes placement coordinates, ink type, color reference, and strike-off requirement — everything your print supplier needs to produce consistently.