You didn't mention customink in your original post. How does that fit in with your question?I am not sure this was a process advertized by customink.
You can get a single print on white just about anywhere. Either by heat press or direct to garment printing at cafepress.com. By dye sublimation at zazzle.com. By heat press, flock or vinyl transfer at spreadshirt.com. By direct to garment printing at printfection.comCustomink offer on a single run on white only , I do not recall the details
I'm not sure what you mean by this original question?The Time Seen Shorted Than Screenprinting It Is Not An Iron -on Process