When you send color work to a service bureau or printing shop, either you or the service bureau must create color separations. Color separations are necessary because a typical printing press applies only one color of ink at a time to a sheet of paper. You can specify the color separations to print, including the order in which they print.
Printing presses produce color using either process color or spot color, or both. You can convert the spot colors to process colors at printing time.
Corel also supports PANTONE Hexachrome, a type of printing process that increases the range of printable colors.Talk to your service bureau about whether you should use PANTONE Hexachrome color.
When setting halftone screens to print color separations, we recommend that you use default settings; otherwise, screens can be improperly set and result in undesirable moiré patterns and poor color reproduction. However, if you are using an imagesetter, the screen technology should be set to match the type of imagesetter the service bureau uses. Before customizing a halftone screen, consult the service bureau to determine the correct setting.
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