DTF Printing Problem: Wrinkled Film

Loongor

Wrinkled film is a common issue when using a DTF Printer.

Before or during printing, the DTF film may develop wrinkles, waves, or raised areas. This can cause the design to print out of position, look distorted, or lose detail. In more serious cases, the uneven film may interfere with the Printhead and increase the risk of a head strike.

The most common causes include:

Incorrect film tension
Film that is not secured properly
A damaged or uneven film roll
High humidity
Moisture absorbed by the film
Excessive stretching during installation

How to Fix Wrinkled DTF Film

Adjust the Film Tension

When installing the film, adjust the tension control so the film stays flat and evenly stretched.

The film should not be loose, sagging, or moving from side to side. At the same time, do not pull it too tightly.

Check the film roll as well. A bent, damaged, or uneven roll can cause the film to feed incorrectly and develop wrinkles during printing.

Before starting a full job, feed a short section through the machine and confirm that it stays flat.

Control the Room Humidity

Keep the printing area dry and well ventilated.

A humidity level of around 40% to 60% is a useful working range. Excess moisture can cause the film to absorb water, expand, and develop waves or wrinkles.

If the film has already absorbed moisture, place it in a drying cabinet before printing.

A suggested starting point is:

Temperature: 50°C
Time: 30 minutes

Allow the film to return to a stable temperature before loading it into the printer.

Avoid Overstretching the Film

Handle the film carefully during installation.

Pulling too hard can permanently stretch or deform part of the film. Once that happens, adjusting the tension may not completely remove the wrinkles.

Support the film roll while loading it, keep the edges aligned, and avoid folding or pressing on the printable surface.

Final Check Before Printing

Before sending the job, confirm that:

The film is flat
The tension is even
The roll is not damaged
The film edges are aligned
There are no raised or loose areas
The film feeds smoothly through the machine

A quick check before printing can prevent distorted designs, wasted film, and possible Printhead damage.

Jim

Usually it’s tension or humidity acting up, and suddenly your print looks like it survived a tiny earthquake.

Mier

To address the issue of wrinkled DTF film, ensure that the film is correctly tensioned and the film roll is in good condition. Feed a short section through the machine before starting the full job to check for flatness. Additionally, monitor the room humidity; a level between 40% to 60% is ideal. If the film has absorbed moisture, consider using a drying cabinet before printing. A quick final check before printing can also help prevent distortions and other issues.