Blighty's Edit is probably the solution.
If printing at home with a regular colour printer ( inkjet or laser) there is no white ink. Usually the three colours cyan, magenta, yellow + black. White = empty space and takes whatever colour the printing medium is. White paper = white. A transparency = transparent.
Seiko do (did?) make some very expensive inkjets with white ink for art work. There might be some dye-sublimination printer around that prints white. What you probably need to do is find some white printable adhesive film or look at some sort on screen-printing a white background on the transparency prior to colour printing.
Looking at your screenshot, it is the sort of device that has whole design screenprinted in the first place.
If printing at home with a regular colour printer ( inkjet or laser) there is no white ink. Usually the three colours cyan, magenta, yellow + black. White = empty space and takes whatever colour the printing medium is. White paper = white. A transparency = transparent.
Seiko do (did?) make some very expensive inkjets with white ink for art work. There might be some dye-sublimination printer around that prints white. What you probably need to do is find some white printable adhesive film or look at some sort on screen-printing a white background on the transparency prior to colour printing.
Looking at your screenshot, it is the sort of device that has whole design screenprinted in the first place.