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  2. Offset printing - Wikipedia

    en.wikipedia.org/wiki/Offset_printing

    Offset printing is a common printing technique in which the inked image is transferred (or "offset") from a plate to a rubber blanket and then to the printing surface. When used in combination with the lithographic process, which is based on the repulsion of oil and water, the offset technique employs a flat (planographic) image carrier.

  3. Waterless printing - Wikipedia

    en.wikipedia.org/wiki/Waterless_printing

    Waterless printing yields higher ink densities and a broader color spectrum than conventional offset printing does. Waterless plates used on sheet-fed presses are commonly rated for runs of 100,000 to 200,000 impressions. The plates designed for use on web-offset presses can yield 300,000 to 500,000 impressions.

  4. Trap (printing) - Wikipedia

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

    On top of that, in wet-in-wet offset printing, black is the first color to be printed, causing relatively more distortion, thus increasing the risk of visible misregistration. When a trap between two colors is created, it contains the sum of the two colors in question when at least one of them is a spot color.

  5. Lithography - Wikipedia

    en.wikipedia.org/wiki/Lithography

    [8] [9] Offset printing or "offset lithography" is an elaboration of lithography in which the ink is transferred from the plate to the paper indirectly by means of a rubber plate or cylinder, rather than by direct contact. This technique keeps the paper dry and allows fully automated high-speed operation.

  6. Chromolithography - Wikipedia

    en.wikipedia.org/wiki/Chromolithography

    Before final printing, the image is proof printed and any errors corrected. In the direct form of printing, the inked image is transferred under pressure onto a sheet of paper using a flat-bed press. The offset indirect method uses a rubber-covered cylinder that transfers the image from the printing surface to the paper. Colours may be ...

  7. Printing - Wikipedia

    en.wikipedia.org/wiki/Printing

    Offset printing is a widely used modern printing process. This technology is best described as when a positive (right-reading) image on a printing plate is inked and transferred (or "offset") from the plate to a rubber blanket. The blanket image becomes a mirror image of the plate image.

  8. Contact copier - Wikipedia

    en.wikipedia.org/wiki/Contact_copier

    Offset printing can use either a negative plate, where the hardened, exposed photosensitive coating attracts ink and repels water, or a positive plate, where the exposed photosensitive coating decomposes or exposes the metal, water-attracting surface.

  9. Newspaper production process - Wikipedia

    en.wikipedia.org/wiki/Newspaper_production_process

    So the data was imaged at first onto a film and then the film was copied with UV-light onto UV-sensitive offset printing plates. The final stage in the newspaper pre-press phase is preparing the imaged offset printing plates for mounting onto the plate cylinder inside of the offset press. The plates have to be bent and often also punched so ...

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