What is DTF Film and How Does it Work in Printing?

Direct-to-Film (DTF) printing is also called design transfer. It involves the use of a specific DTF film to facilitate the transfer of design. The film serves as

a medium of transfer. This product plays a crucial role in the printing process. If you are considering starting DTF service, you should learn about the process.

What is DTF Film?

It is a polyethylene terephthalate (PET) film, but the thing that makes it useful for textile printing is its coating. The coating ensures proper ink absorption, smooth design transfer, and sharp color reproduction. It comes in various sizes to suit individual print needs. The quality of the product matters in premium print jobs.

The sizes available in PET films are A3, A4, and roll formats of 30cm, 60cm, and other sizes. Another important thing about these films is that they are cold peeled or hot peeled after printing. The screen sticks to the garment and is peeled to expose DTF custom prints.

How Does A PET Film Work in DTF Printing?

The DTF process is all about transferring designs to garments. A PET film is used as a medium for successful design transfer. Its role is crucial in DTF printing.

1. Printing the Film

The film is printed on the coated side and mirrored before printing. Specific DTF inks, such as CMYK + White, are used for printing. Coating soaks the inks perfectly and allows for smooth transfer.

2. Adhesive Application

The printed film is treated with a hot-melt powder adhesive to boost the adhesion. Earlier, the adhesive was sprinkled manually. Today, printers use automatic powder shakers to ensure smooth powder application.

3. Curing the Film

The powder-coated film goes to an oven for curing. The heat melts the adhesive and prepares the design for transfer. Today, heat-press machines do the job of curing ovens. They produce enough heat to melt the adhesive.

4. Design Transfer

The film is placed on a heat-press machine and pressed against the garment for design transfer. The transfer takes place under high heat and pressure. The heat and pressure applied are determined according to the fabric and complexity of the design.

5. Peeling the Film

The PET film is peeled to reveal the design. When peeled soon after printing, it is called hot peel. Sometimes the film is allowed to cool for cold peeling. Hot peel speeds up the process, and cold peel emphasizes the quality of DTF custom prints.