Cold-Peel Film
A PET carrier that holds the ink in place until the shirt is fully cool, so the finish comes off glossy and the design survives stretch fabrics that hot-peel would tear.
Short version, straight from the floor.
Cold-peel film is a PET carrier coated with a release layer that stays locked to the ink until the sheet returns to room temperature. In practice, that means the shirt comes off the platen, sits for 45 to 90 seconds while the film cools, and then the operator peels it in one motion. The extra wait is the trade.
Peeling hot on a cold-peel film. Cold-peel released warm behaves like tape that has not set. The ink stretches, the design smears, and half the print stays with the film. Wait for the film to feel room temperature to your palm before you touch a corner.
Assuming glossy always means better. Cold-peel gloss looks premium on a dark athletic tee under a spot light. It looks plasticky on a soft-hand streetwear crewneck under natural room light. Match the finish to the shirt, not to the printer output test.
Skipping poly blocker on performance knits. Cold-peel does not stop dye migration on high-poly fabrics. It just delays it. Six weeks after the press, the reds and whites will bleed. Pair cold-peel with a poly blocker underbase on anything above 30 percent polyester in a light color.
Stacking freshly pressed shirts before the film is off. Cold-peel is still hot for 30 seconds after the platen releases. Stacking a hot cold-peel shirt on top of a cured shirt is how you transfer ink onto the shirt above it. Peel first, then fold.
A production-floor definition, not a spec-sheet lift.
Cold-peel film is a PET carrier coated with a release layer that stays locked to the ink until the sheet returns to room temperature. In practice, that means the shirt comes off the platen, sits for 45 to 90 seconds while the film cools, and then the operator peels it in one motion. The extra wait is the trade. What you buy with those 45 seconds is a glossier finish, tighter edge definition, and the ability to press on stretch fabrics without the design distorting under your hand.
The gloss comes from how the ink layer sets. On hot-peel, the ink is still soft when the film comes away and the surface takes on the micro-texture of the fabric. On cold-peel, the ink is fully cured before it sees any mechanical stress, so it holds the smooth surface it had on the carrier. That is why cold-peel photorealism looks wet on a dark shirt and hot-peel photorealism looks like a shirt.
Cold-peel is our default when a job specs 4-way stretch, performance knits with high spandex, or oversized backs where any distortion during peel would multiply across the print area. It is also the film we use when a customer sends art with 1-point strokes or tight registration between colors, because the cold peel does not shift the film relative to the shirt while ink is still soft.
It is slower. On a two-press station, cold-peel cuts our throughput by about 25 percent versus hot-peel. So we use it deliberately, not by default. If your job does not need the gloss and is not on stretch, hot-peel is faster and cheaper. Ask before you assume.
Every field you need before the press cycle starts.
The numbers below come from our own production floor, not a supplier tech sheet. If a field says 305 F, it is because we press at 305 F and it works. If a field says "avoid on tri-blend," it is because we ruined a run and stopped doing it.
Physical
- Substrate
- 100-micron PET, single-side release coating (heavier than hot-peel)
- Finish
- Glossy after peel, holds smooth surface
- Sheet sizes
- 22×24 in gang and fixed transfer sizes on request
- Storage
- 70 F, sealed, out of direct sunlight, 12 months shelf life
Press recipe
- Temp on cotton
- 295 to 310 F
- Temp on performance knit
- 280 to 290 F with poly blocker
- Dwell
- 10 to 14 seconds
- Pressure
- Medium-firm (about 40 to 45 psi)
- Peel window
- After full cool, roughly 45 to 90 seconds
- Peel angle
- 30 degrees, single motion, film should feel room temperature
Application
- Fabric compatibility
- Performance knits, tri-blend, cotton, cotton-poly, athletic mesh (with poly blocker)
- Color capability
- Full-color CMYK plus white underbase, opaque on darks, glossy top surface
- Wash durability
- 60-plus washes under standard care, comparable to hot-peel
- Stretch tolerance
- High; ink is fully bonded before any fabric recovery
- Best applications
- Athletic wear, photorealistic art on darks, tight registration, oversized backs
- Worst applications
- Volume production where line speed matters more than finish
Cost & workflow
- Cost per unit at volume
- Same media cost; workflow overhead adds roughly 3 to 5 percent per shirt on production runs
- Line speed
- About 25 percent slower than hot-peel on a two-press station
- Common failure mode
- Peeling before full cool = ink stretches. Peeling at hour-plus = film re-bonds and needs a re-press.
What this is designed to run next to.
Every pairing below is one we set on the press ourselves. If a substrate or transfer type is not here, it is either wrong for this material or we have not proven it enough to publish.
Best-with adhesive
Best-with fabrics
Where this is the wrong tool, and what to reach for instead.
You are running high-volume production against a deadline.
Cold-peel adds real minutes to every shirt. If you are pressing 300 units against a Friday ship date, hot-peel is the film that keeps the schedule.
Use Hot-Peel Film insteadYou want a soft fabric hand.
Cold-peel finishes glossier, which reads as a slightly heavier hand next to hot-peel. On a soft-hand streetwear tee that is the wrong choice. Hot-peel gives you a matte finish that feels more like the shirt.
Use Hot-Peel Film insteadYour operators cannot enforce a cool-down.
The most common cold-peel failure is peeling at 20 seconds because the operator was trained on hot-peel. If your shop cannot enforce a 45-second cool-down, use hot-peel and remove the risk.
The failures we watch shops repeat every week.
Peeling hot on a cold-peel film.
Cold-peel released warm behaves like tape that has not set. The ink stretches, the design smears, and half the print stays with the film. Wait for the film to feel room temperature to your palm before you touch a corner.
Assuming glossy always means better.
Cold-peel gloss looks premium on a dark athletic tee under a spot light. It looks plasticky on a soft-hand streetwear crewneck under natural room light. Match the finish to the shirt, not to the printer output test.
Skipping poly blocker on performance knits.
Cold-peel does not stop dye migration on high-poly fabrics. It just delays it. Six weeks after the press, the reds and whites will bleed. Pair cold-peel with a poly blocker underbase on anything above 30 percent polyester in a light color.
Stacking freshly pressed shirts before the film is off.
Cold-peel is still hot for 30 seconds after the platen releases. Stacking a hot cold-peel shirt on top of a cured shirt is how you transfer ink onto the shirt above it. Peel first, then fold.
Ask for cold-peel when the shirt is going to fight you.
Stretch fabric, performance knit, photorealism on a black tee, tight registration. Note it on the order, we default to cold-peel and press it right the first time.