Troubleshooting Guide
Diagnose and fix common DTF transfer issues. Step-by-step solutions for pressing problems, colour issues, and adhesion failures.
6 min read
How to diagnose pressing issues
Every DTF pressing problem traces back to one of four variables: temperature, time, pressure, or moisture. When troubleshooting, change one variable at a time so you can identify exactly what's causing the issue.
Rule of thumb: If the transfer looks fine initially but fails after washing, it's usually an adhesion issue (pressure or re-press). If the transfer looks wrong immediately, it's usually a temperature, time, or artwork issue.
Quick diagnostic flowchart
1.Is the garment pre-pressed and dry? → If no, pre-press first
2.Is your platen temperature verified with a laser gun? → If no, verify temperature
3.Are you using the correct settings for the fabric? → Check the fabric table
4.Is pressure even across the full platen? → Test with a pressure gauge or paper pull test
5.Did you re-press after peeling? → If no, always re-press
Edges lifting or peeling after wash
Common
Likely causes
- Insufficient pressure during pressing — edges need full contact
- Moisture trapped in the garment (skipped pre-press)
- No re-press step after peeling the carrier film
- Pressing time too short for the fabric weight
Solutions
- Pre-press garment for 5–10 seconds to remove all moisture
- Increase pressure — edges should have full, firm contact with the platen
- Always re-press for 5–10 seconds after peeling
- Extend pressing time by 2–3 seconds for heavier fabrics
- Check that your press applies even pressure across the full platen area
Prevention: The combination of proper pre-press + firm pressure + re-press eliminates most edge lifting issues permanently.
Print looks dull, faded, or washed out
Common
Likely causes
- Press temperature too high or pressing time too long (over-cured)
- Artwork exported with wrong colour profile (Adobe RGB, CMYK, or P3 instead of sRGB)
- Heavy JPEG compression reduced colour fidelity in the source file
- Artwork designed for screen looked vivid on a wide-gamut monitor but exceeded printable gamut
Solutions
- Reduce temperature by 5°C and check results
- Reduce pressing time by 2 seconds
- Re-export artwork as sRGB PNG (not JPEG)
- Check source file isn't over-compressed (use PNG or high-quality TIFF)
Prevention: Use sRGB colour profile, export as PNG, and verify press temperature with a laser gun.
Carrier film tears or doesn't peel cleanly
Moderate
Likely causes
- Peeling too early (film hasn't released from the adhesive)
- Peeling too late (adhesive has cooled and re-bonded to film)
- Temperature/time mismatch — under-pressing prevents proper release
- Hesitating mid-peel creates uneven separation
Solutions
- Wait 2–3 seconds after opening the press before peeling
- Peel in one smooth, confident motion at ~45° angle
- Ensure temperature and time match the fabric settings
- If film sticks, re-press for 3–5 seconds and try peeling again immediately
Prevention: Consistent technique: open press → wait 2–3s → peel hot in one motion. No stopping.
White box or halo around the design
Common
Likely causes
- Background is not truly transparent — a white or coloured background was baked into the file
- File saved as JPEG (which doesn't support transparency)
- Anti-aliasing created a semi-transparent fringe that prints as a white halo
- Screenshot or web image used instead of source artwork
Solutions
- Re-export as PNG-24 with transparency enabled
- Check the file in a viewer that shows the checkerboard pattern
- In Photoshop: Select and Mask → contract selection by 1–2px before deleting background
- Source higher-quality artwork — don't use screenshots or web images
Prevention: Always use PNG with true transparency. Test by placing the file on a coloured background in any image editor.
Garment dye bleeding into the white areas of the transfer
Moderate
Likely causes
- Temperature too high for polyester or dye-sublimated garments
- Dark polyester (especially red, royal blue, and black) releases dye when heated
- Extended pressing time at high temperature accelerates migration
Solutions
- Reduce temperature to 130–135°C for dark polyester
- Reduce pressing time to 6–8 seconds
- Use a lower temperature with slightly longer time if needed for adhesion
- Test with a small piece before running a full batch
Prevention: Always test dark polyester before production. Lower temp + shorter time is the first defence.
Transfer cracks or peels after washing
Moderate
Likely causes
- Insufficient adhesion from under-pressing (temperature, time, or pressure too low)
- No re-press step
- Garment was washed incorrectly (hot wash, tumble dry, direct ironing on print)
- Over-stretching the garment before pressing
Solutions
- Verify press settings match the fabric recommendations
- Always re-press after peeling
- Follow wash care guidelines: cold wash inside out, no direct heat on print
- Don't overstretch garments before pressing — allow natural drape
Prevention: Proper pressing (right temp + time + pressure + re-press) + correct wash care = long-lasting transfers.
Rough, raised, or rubbery texture
Low
Likely causes
- Heavy ink coverage areas (full white + full CMYK) naturally have more texture
- Under-pressing leaves the adhesive layer partially un-bonded
- Skipping the re-press leaves the surface rougher
Solutions
- Re-press with a Teflon sheet for 5–10 seconds — this smooths the surface significantly
- Ensure firm, even pressure during the initial press
- For large, heavy-coverage designs, slightly increase time and pressure
Prevention: A Teflon re-press is the single best technique for smooth surface texture.
Garment discolouration or scorch marks
Serious
Likely causes
- Temperature too high for the fabric type
- Pressing time too long
- Direct contact between garment and hot platen without parchment/Teflon protection
- Press temperature display is inaccurate (reads lower than actual)
Solutions
- Reduce temperature immediately (try 5–10°C lower)
- Reduce pressing time
- Always use parchment or Teflon between the press and the garment/transfer
- Verify platen temperature with a laser thermometer
Prevention: Verify temperature accuracy and always protect garments with parchment or Teflon.
Still stuck?
If you've worked through the troubleshooting steps above and are still experiencing issues, we're here to help.