Color Separation, ContinuedSpot colorSpot color is a process you use to indicate areas for color separation byplacing an overlay over a simple black-and-white line illustration. Makeprecise instructions to the printer on this overlay. If the drawing iscomplicated or has detailed color areas, make the color separations yourself.Create an overlay for each primary color, register it to the master, andindicate the desired color of ink. This process produces flat color with nomodeling or shading. You create modeling or single color variations byusing a shading sheet in the artwork or requesting the camera person to use abenday sheet.Fake colorFake color involves printing from original line artwork or continuous tonephotograph by indicating color or screen tints on a separate overlay. Theoutlines of the image define the various color areas to strip in color panels.Duotonesnegatives is shot flatter than the other so that one plate will supply colorwhile the other plate supplies detail. The detail is usually printed in thedarker or dominant ink. You may use any combination of inks or black inkand a grey ink (called a true duotone). The two plates printed togetherproduce a duotone print that appears to have more dimension than theoriginal image.Using only two plates to print a color image with a dark dominant ink and alighter secondary ink, results in a print known as a duotone. Two negativesare shot at different angles from a single piece of artwork. One of theseBourges sheetsIn the creation of artwork for color reproduction, you want to most nearlyapproximate the finished product before you commit yourself to the expenseof color printing. Bourges sheets are transparent color sheets available invarious colors and densities. By building up, removing, or cutting outsections of the sheets, you create color copy in separate overlays. Thecombined overlays simulate the printed product.Continued on next page1-57
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