Some on disc CD/DVD printing processes that use CMYK or process color printing may not always have exact solid color areas. Spot color printing such as Silkscreen CD/DVD printing will produce nice solids because they are only one color layer. Since disc process printing like PhotoPro CD/DVD printing or Offset disc printing use percentages of up to 4 colors plus white layered on top of each other, there may be some variations in the form of lines, streaks and patterns. This is also called "ghosting" or "banding."
Offset printing is also CMYK + White and may have some variations in the form of ghosting, usually in larger areas. Creating gradations on purpose or adding slight textures are great solutions for getting good, solid colors with offset printing.
Printing process that use special spot colors or Pantone Matching System (PMS) colors (such as Silkscreen) do not have issues with solid colors when using 100% of the defined color. When used with solid colors in any size area, Silkscreen creates an even, glossy print. However, when used in halftones, percentages, or when printing in processed bitmap images, Silkscreen will print with a dot pattern. The best thing to remember when printing large areas of solid colors is that Silkscreen printing is ideal, including vector artwork to specific spot or Pantone colors.
Still have concerns with your solid colors? Are you in need of artwork recommendations? Contact your account representative or one of our graphic designers at 1.877.992.3766.