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    Etchant

    Any chemical used to etch an image area in an intaglio plate, a gravure cylinder, or a flexographic press's anilox roller. The most common etchant in use is ferric chloride. See Gravure Engraving and Anilox Roller. An etchant is also used in flexographic platemaking. See Plate: Flexography and Gravure Engraving.

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