Sublimation Settings, Paper & Temperature: A Reference Guide for Decorators

Dye-sublimation prints a design with special ink onto sublimation paper, then uses heat and pressure to turn that ink into a gas that bonds permanently into polyester fibers or a polymer coating. It is a different process from DTF, with different materials and different settings — and many apparel decorators run both. This guide is a practical reference: what sublimation paper is, the temperature and time settings to start from, what a purge sheet is, and where sublimation fits next to DTF.

How Sublimation Works in 60 Seconds

Sublimation ink is printed onto coated sublimation paper. When that paper is heat-pressed against a substrate, the ink converts straight from solid to gas (it “sublimates”), penetrates the surface, and solidifies again inside the material. The design becomes part of the substrate — there is no layer sitting on top, so a sublimated print has zero hand feel.

That permanence comes with two hard limits:

• It only works on polyester or polymer-coated surfaces. Sublimation dye bonds with polyester. It does not bond with cotton. Hard goods (mugs, tumblers, signs) must have a special polymer coating to accept it.
• It only works on light substrates. Sublimation ink is translucent and there is no white ink, so the substrate must be white or light. You cannot sublimate a true-color design onto a black shirt.

Those limits are exactly why many shops also run DTF — see DTF vs sublimation for the full comparison.

What Sublimation Paper Is

Sublimation paper is a specially coated transfer paper that holds sublimation ink on its surface and releases it cleanly under heat. Regular paper absorbs the ink and will not release it properly; sublimation paper is engineered for high ink release and minimal “bleed.”

A few practical points:

• It is not the same as DTF film. DTF transfers print on a clear PET film and carry a powdered adhesive; sublimation paper is paper, carries no adhesive, and is discarded after one press.
• Weight matters. Heavier sublimation papers (higher gsm) handle high-ink designs with less curl and wrinkling.
• Print on the correct side. Sublimation paper has a coated print side and a plain back. Printing the wrong side wastes ink and ruins the transfer.
• Store it dry. Like most transfer media, sublimation paper performs best kept away from humidity.

Sublimation Temperature & Time Settings

Sublimation settings vary by substrate, blank manufacturer, and press, so treat the figures below as typical starting points — always follow the recommendations from your blank and ink suppliers, and test before a customer run.

Polyester apparel (shirts, performance wear)

• Temperature: roughly 385–400°F
• Time: roughly 45–60 seconds
• Pressure: medium
• Use protective paper above and below the garment, and pre-press the shirt briefly to remove moisture and wrinkles.

Hard goods (mugs, tumblers, coated substrates)

Hard goods depend heavily on the equipment used — a mug press, a convection oven, or a tumbler press each behave differently.

• Mugs (mug press): roughly 360–400°F for several minutes, per the press and mug instructions.
• Coated panels and signs (flat press): roughly 385–400°F for 60 seconds or so.
• Times for ovens and tumbler presses are longer and equipment-specific.

The key habit: write down the settings that work for each blank, because sublimation is far less forgiving of a wrong setting than it looks. Too little heat or time leaves the color dull; too much causes ghosting and color shift.

What a Sublimation Purge Sheet Is

Sublimation printers clog easily when they sit unused — the ink can dry in the printhead nozzles. A purge sheet (or purge print) is a heavily saturated, full-coverage page run through the printer specifically to flush ink through every nozzle and keep the heads clear.

Running a purge sheet on a regular schedule — or before a big job after the printer has been idle — is routine maintenance for sublimation. Many shops keep a colorful purge design on hand for exactly this, so the ink used for maintenance at least produces a usable nozzle check. This is separate from the protective butcher or parchment paper placed above and below a substrate during pressing, which catches off-gassing ink and protects the platen.

Sublimation Gang Sheets

Just as with DTF, a sublimation gang sheet packs multiple designs onto a single sheet of sublimation paper to use the paper and ink efficiently and cut down on waste. The principle is identical to a DTF gang sheet — arrange designs tightly, leave a small gap between them, and cut them apart after printing. The difference is only the media: paper for sublimation, film for DTF.

Sublimation vs DTF: Which to Use

For decorators who run — or are deciding between — both methods, the short version:

• Choose sublimation for polyester and coated hard goods in light colors, when you want a print with no hand feel at all — performance shirts, mugs, mousepads, all-over prints.
• Choose DTF when you need to print on cotton, on dark garments, or on a mix of fabrics, since DTF carries its own white underbase and bonds to nearly any fabric.

Neither replaces the other; they cover different jobs. The full breakdown is in DTF vs sublimation, and for hard goods specifically, UV DTF is a third option worth knowing.

Frequently Asked Questions

What is sublimation paper?

Sublimation paper is a specially coated transfer paper that holds sublimation ink on its surface and releases it cleanly under heat. It is engineered for high ink release and low bleed, has a distinct coated print side, and is discarded after a single press. It is not the same as DTF film.

What temperature and time do you use for sublimation?

For polyester apparel, a typical starting point is roughly 385–400°F for about 45–60 seconds at medium pressure. Hard goods like mugs use different settings depending on the press. Always follow your blank and ink manufacturer's recommendations and test before a full run.

What is a sublimation purge sheet?

A purge sheet is a heavily saturated page run through a sublimation printer to flush ink through every nozzle and prevent the printheads from clogging when the printer sits idle. Running one on a schedule, or before a big job after downtime, is routine sublimation maintenance.

Can you sublimate on cotton?

No. Sublimation dye bonds with polyester and polymer coatings, not cotton fibers. To print on cotton, use DTF, which bonds to nearly any fabric and includes a white underbase. This is the main reason many shops run both methods.

What is a sublimation gang sheet?

A sublimation gang sheet packs multiple designs onto one sheet of sublimation paper to use paper and ink efficiently and reduce waste. It works the same way as a DTF gang sheet — the only difference is the media, paper for sublimation versus film for DTF.

Is sublimation better than DTF?

Neither is better overall — they suit different jobs. Sublimation excels on light polyester and coated hard goods with no hand feel, while DTF handles cotton, dark garments, and mixed fabrics. Many decorators run both and pick the method per job.

Related Resources

For the full method comparison, see DTF vs sublimation. For hard-good decoration, see the UV DTF guide. To plan efficient layouts, use the gang sheet calculator, and for DTF press settings see the DTF temperature and time chart and the DTF process guide. Browse the supplier directory to source transfer media and equipment.