Why sublimation doesn't work on black — and what to use instead

What sublimation actually does

Sublimation turns solid dye into gas under heat, and that gas bonds into the polyester fibre. The colour becomes part of the thread rather than a layer on top of it. That is why a sublimated jersey has no hand-feel where the graphic is — there is nothing sitting on the surface to feel.

It also means the ink is translucent and additive. It can only make a fibre darker or more saturated than it already was. There is no white sublimation ink, because there is no way to remove colour that is already in the fabric.

So on a black garment, nothing happens

Put a bright design onto black polyester with sublimation and the result is black. The dye goes in, and it is invisible against a base that is already darker than anything the ink can produce. This is not a quality problem or a machine problem — it is how the chemistry works, and no factory can engineer around it.

It is worth being blunt about this because it is a common false promise. If a supplier agrees to sublimate your logo onto black without qualification, they are either going to substitute a different method without telling you, or they have not understood the order.

What should I use instead for a dark kit?

• Full-panel engineered print. The panels are printed while the fabric is still white or light, then cut and sewn into the finished garment — so the dark areas are printed dark rather than dyed dark. This is how most professional dark kits are made, and panel-matched prints across seams are done on our floor.
• Screen print. Opaque ink laid on top of the fabric, including white and light colours on a dark base. Puff and high-density are screen-print variants.
• Heat-applied graphics. Names, numbers and logos applied to a dark base — the standard route for teamwear personalisation.

The confusion that costs money

Sublimation and heat-transfer vinyl get treated as the same thing, and they are opposites. Sublimation is in the fibre and cannot crack or peel. Vinyl is a layer bonded to the surface and can do both, especially at stress points and after repeated washing.

So when someone says "sublimated" kit peeled, it almost certainly was not sublimated. That distinction matters when you are comparing quotes: two suppliers can both say "sublimation" and be selling you different products with different lifespans.

Ask which one you are being quoted, and ask for a video of the technique running before you sample. What a floor is willing to show you on camera is a reliable signal.