Everyone knows you need an actual direct-to-garment printer to do garment production, and most new users understand you need to heat set the ink once the garment is printed, most commonly using a heat press. The confusion usually arises over whether or not to pretreat the shirts before printing.
All direct-to-garment printers use a water base ink system and special treatment is required when printing dark shirts. The rule is: When you print white ink, you must pretreat the shirt first. Without pretreat solution on the shirt, the white and color inks will simply disappear into the fabric after printing.