I'm afraid you will not be able to do foil printing with a digital direct to garment printer.
Foil printing on a garment is usually done by screen printing. The image is screened on the garment with plastisol ink or an adhesive. A foil sheet is placed over the imprint and is heat pressed. After cooling the foil sheet is pulled off the garment. The foil will stick to the ink or adhesive, giving your your foil imprint. With all of the digital garment printers you are printing with water based inks, which the foil will not stick to. (you can imagine what would happen to your print heads if you tried printing adhesive through it).
Since foil does not stick to waterbased inks, it was one of the tricks we used to use when I screen printed. If we wanted a multicolor printed shirt, with foil in just a section or two, we screen printed the shirt with a combination of plastisol ink and waterbased ink. When we heat pressed the foil sheet to the shirt the foil would only stick to the plastisol ink.
Harry
Foil printing on a garment is usually done by screen printing. The image is screened on the garment with plastisol ink or an adhesive. A foil sheet is placed over the imprint and is heat pressed. After cooling the foil sheet is pulled off the garment. The foil will stick to the ink or adhesive, giving your your foil imprint. With all of the digital garment printers you are printing with water based inks, which the foil will not stick to. (you can imagine what would happen to your print heads if you tried printing adhesive through it).
Since foil does not stick to waterbased inks, it was one of the tricks we used to use when I screen printed. If we wanted a multicolor printed shirt, with foil in just a section or two, we screen printed the shirt with a combination of plastisol ink and waterbased ink. When we heat pressed the foil sheet to the shirt the foil would only stick to the plastisol ink.
Harry