Your logo consists of 3 colors, yet you’re being charged for a 4-color screen printing job. What? Why? Are decorating companies trying to pull a fast one on you? Though at first you may think otherwise, the answer is, no they are not.
You may be wondering, what and where is that fourth color coming from? That mysterious fourth color is actually what decorating manufacturers call an under base, white under base, or a flash. An under base is a necessary technique used in the screen printing industry.