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  2. Under color removal - Wikipedia

    en.wikipedia.org/wiki/Under_color_removal

    In printing, under color removal (UCR) is a process of eliminating overlapping yellow, magenta, and cyan that would have added to a dark neutral (black) and leaving the black ink only, called a full black, during the color separation process. Under color removal is used in process color printing.

  3. CMYK color model - Wikipedia

    en.wikipedia.org/wiki/CMYK_color_model

    The CMYK color model is based on the CMY color model, which omits the black ink. Four-color printing uses black ink in addition to subtractive primaries for several reasons: [2] In traditional preparation of color separations, a red keyline on the black line art marked the outline of solid or tint color areas. In some cases a black keyline was ...

  4. Trap (printing) - Wikipedia

    en.wikipedia.org/wiki/Trap_(printing)

    The trap is not visible since the lighter color is spread underneath the—almost—opaque black. For the same reason, in many cases, black ink is set to "overprint" colors in the background, eliminating the more complex process of spreading or choking. Since black is a dark color, white gaps caused by misregistration are more visible.

  5. Rich black - Wikipedia

    en.wikipedia.org/wiki/Rich_black

    While, in theory, an even richer black can be made by using 100% of each of the four inks, in practice, the amount of non-black ink added is limited by the wetness that the paper and printing process can handle. [4] (A safe and practical rule of thumb is that ink coverage should not exceed 240% on normal papers.

  6. Color printing - Wikipedia

    en.wikipedia.org/wiki/Color_printing

    Benizuri-e (紅摺り絵, "crimson printed pictures") - images printed in two or three colors, usually containing red and green pigments, as well as black ink. This printing technique should not be confused with "beni-e", above.

  7. Print an email, attachment, or website in AOL Desktop Gold

    help.aol.com/articles/unable-to-print-from...

    Print emails, attachments, and websites. Save a hard copy of important emails, email attachments, and websites by printing them. When you print an email, only the text will show. Attachments, such as pictures or documents, need to be downloaded and printed separately. Print an email

  8. Ink - Wikipedia

    en.wikipedia.org/wiki/Ink

    Such a compound is commonly used in ink-jet printing inks. An additional advantage of dye-based ink systems is that the dye molecules can interact with other ink ingredients, potentially allowing greater benefit as compared to pigmented inks from optical brighteners and color-enhancing agents designed to increase the intensity and appearance of ...

  9. 30 Color Photos Photographers Took 100 Years Ago That Still ...

    www.aol.com/44-old-color-photos-showing...

    I don't know about you, Pandas, but I love period dramas. They're like a window into the past: we can see how people looked and lived a hundred or even more years ago.However, they're often just ...