As far as I know there aren't ANY white inks for injet printers.
Someone has come up with a white toner for laser printers, but to do this method you need two printers...one for white only and one for colors.
To have white in your design on colored shirts, you need to use opaque paper, for most printers. For Inkjets, IronAll for Darks seems to be the best at the moment.
