DTF printing is one of the newest and currently most sought-after digital printing techniques. Thanks to its unmatched versatility and sharp prints, T-shirt customization has reached a whole new level.
At the core of this technique is the use of transfer films. Printing on films allows printing on all fabrics, regardless of color. This is one of the reasons why DTF is so versatile. However, DTF film printing is not as simple as it seems. To achieve optimal results, you must choose between hot-peel and cold-peel DTF films.
The main difference between the two is that hot-peel films can be removed immediately after pressing, whereas cold-peel films require cooling before removal to achieve a stronger and longer-lasting bond. But peel timing isn’t their only characteristic. They offer more than just two types of films with different peeling requirements. This comparison guide will explain their differences in detail.
Main Differences Between Hot-Peel and Cold-Peel Film
| Aspect | Hot-Peel | Cold-Peel |
|---|---|---|
| Application Process | Peel immediately after pressing | Must cool before peeling |
| Adhesion | Bonds quickly with fabric | Bonds more slowly as it cools |
| Material Compatibility | Best for lighter, thinner fabrics (cotton, polyester, blends) | Best for thicker and heavier garments (hoodies, denim, textured fabrics) |
| Final Texture | Smoother surface | Firmer feel with a plastic-like texture |
| Durability | Less durable, prone to cracking and peeling | More durable, less prone to cracking or peeling |
The versatility of DTF printing is partly due to the availability of consumables suitable for different applications. With all these materials offering unique printing properties, this method becomes even more suitable for high customization.
Application Process
Both hot- and cold-peel films follow the standard DTF printing process. The key difference appears during the peeling stage:
- Hot-peel: The film can be removed immediately after heat pressing.
- Cold-peel: The design must cool to room temperature before peeling to ensure a strong, long-lasting bond.
Adhesion
- Hot-peel: Instant adhesion even while warm; no cooling needed.
- Cold-peel: Slower adhesion; requires cooling for a solid bond.
Material Compatibility
- Hot-peel: Ideal for lighter fabrics such as cotton, polyester, and blends that absorb ink quickly.
- Cold-peel: Best for heavier fabrics like hoodies and denim, which absorb ink more slowly. Cooling prevents premature sticking and deformation.
Final Texture
- Hot-peel: Produces a smoother, softer print surface.
- Cold-peel: Thicker, firmer, slightly plastic-like texture. Better suited for thicker fabrics.
Durability
- Hot-peel: Faster application but less durable; prints may crack sooner.
- Cold-peel: Thicker, more durable prints that withstand wear and washing better.
Detailed Differences
Key Components
Both film types share adhesives and release coatings.
- Cold-peel adhesives: Stronger, providing longer-lasting prints.
- Hot-peel adhesives: Fast-setting, allowing quick application.
Press Time and Temperature
- Hot-peel: Higher heat, shorter press time (approx. 10–15 sec at 160°C / 320°F).
- Cold-peel: Slightly longer press (approx. +5 sec) at similar temperatures, then cooling before peeling.
Ideal Use Cases
- Hot-peel: Lighter fabrics, quick jobs, small runs.
- Cold-peel: Darker or heavier garments, long-lasting prints, high durability required.
Finished Effects
- Hot-peel: Smooth, integrated design but less durable.
- Cold-peel: Thicker, more resistant print with firmer feel; better for long-lasting, high-quality applications.
How to Properly Store DTF Film
Proper storage preserves film integrity and print quality:
- Cool and dry storage: Maintain 18–24°C (64–75°F) and ≤60% humidity.
- Avoid direct light: Keep away from sunlight and UV exposure.
- Keep in original packaging: Protects from dust, scratches, and deformation.
- Avoid chemicals: Keep away from solvents, oils, and cleaning agents.
- Keep away from sharp objects: Scissors, cutters, and knives can easily damage the film.
Frequently Asked Questions
What is DTF film?
DTF films are thin PET sheets used in direct-to-film printing. After printing, designs are coated with special powder and cured, then heat-pressed onto garments.
What equipment do I need for DTF printing?
- DTF printer: Compatible with DTF ink and white ink cartridges.
- DTF ink: Water-based ink suitable for the film.
- Heat press: Typical settings 160–170°C (320–338°F) with medium pressure (approx. 40–60 psi).
- Curing oven (optional): To cure the powder adhesive; heat press can also be used.
Can DTF film be used on all materials?
DTF is versatile and works on natural, synthetic, and blended fabrics, and other surfaces that can withstand recommended heat and pressure.
Which side of the DTF film should I print on?
Print on the matte side, which absorbs ink and powder. The glossy side is used for the heat transfer process.
Can DTF film be reused?
No. Once printed and heat-pressed, the film loses its adhesive and ink-absorbing properties. Reuse will cause poor transfer results or uneven prints.