How it works
A UV printer prints onto A film, which carries an adhesive layer. The print is built in layers (commonly varnish, colour, white and an adhesive-side layer, depending on the machine profile) and cured by UV light. A clear B film (transfer film) is laminated on top. To apply: peel off the A film backing, press the print onto the item, rub firmly, then peel away the B film. Only the cured print and its adhesive stay on the item.
Workflow
- Print on A film with the UV DTF profile (white + colour + varnish).
- Laminate with B film (built-in laminator on roll machines, or a cold laminator). No bubbles.
- Cut around designs or leave as a sheet.
- Clean the item with IPA and let it dry.
- Peel A film, place, squeegee firmly from the centre out.
- Peel B film slowly at a low angle.
- Let the bond settle for about 24 hours before heavy handling or washing.
Uses
Tumblers, bottles, glass, mugs, helmets, phone cases, notebooks, gift boxes, signage, electronics, toys. Ideal for curved or irregular shapes that a flatbed cannot reach, and for selling ready-to-apply stickers.
Strengths
- No heat press; works on almost any hard, clean surface.
- Raised, glossy, premium feel; strong adhesion.
- No cutting or weeding of vinyl.
- Transfers can be stocked and shipped.
Limits
- Not for garments or soft fabric.
- Dishwasher and outdoor durability vary by film and ink; hand-wash is safest. Test before promising.
- Needs a clean, smooth surface; textured or oily surfaces lift.
Common faults
| Fault | Usual cause |
|---|---|
| Design stays on B film or tears | Peeling too fast or not rubbed enough; varnish layer too thin |
| Edges lift after a day | Surface not cleaned, curved too sharply, or not pressed firmly |
| Bubbles or wrinkles | Lamination tension or speed wrong |
| Sticky surface | Under-cure: check lamp power and print speed |
UV DTF vs DTF
Both print on film, but they are different products. DTF uses water-based ink, powder and a heat press, for fabric. UV DTF uses UV ink, adhesive A/B film and hand application, for hard surfaces. The films, inks and machines are not interchangeable.
Videos and references
External videos are from other companies and may show different machines. Where they differ, follow the TrueDot steps above.
