We can print foil side by side with other print colors but the other inks must be waterbased. Foil will stick to plastisol or other heavy-solids ink.
Printing foil with other inks is often a great way to capture some fine detail that you cannot otherwise get with foil alone. Foil is stuck to an adhesive layer through pressure and heat. Since the adhesive is printed on the rough surface of fibers, there is a good chance that the foil does not fully stick to fine dots or lines. Here you can use a similar color (yellow for gold foil?) to resolve the finer detail and give the design some depth at the same time.
In most cases we can only print one color of foil in a single print location. There are exceptions to this so ask us and we’ll evaluate the possibilities on a design by design basis.