Those of you in the screen printing business having only one or two colors to print will do well to get color swatches from an ink manufacturer, pick out the color you need, and do your printing. As you need more different colors, the ink maker will be able to assist you in using the basic colors to make blends that will give you some of the in-between colors. You may have a meticulous customer who wants something that is two-thirds the way from one color to another. You make up your trial and he approves it. You go into production and then he says, “No, there’s something wrong, the color isn’t …