When it comes to colors fading with DTG, it will depend on the situation. When printing on light and dark garments, if you are working with a blend T or polyester, you will most likely see fading after curing the print. Since the ink is water-based, the pigments are not able to adhere correctly to the polyester, causing a faded look.
If the fading comes after washing the garment, then it’s most likely due to the inks being under cured. Before the inks can cook adequately, printers need to remove the water from the garment. Due to the ink’s chemistry, the amount of time necessary to remove this water will vary depending on the manufacturer. Be sure to follow the recommended guidelines for optimal performance!