Image plates are used to have the desired artwork "image" etched in its surface. Their function is to hold ink in this etched cavity, allows the pad to pick up this ink as a film in the shape of the artwork, which is then transferred to the substrate. Two main types of printing plate materials: photopolymer and steel. Photopolymer plates are the trendiest, providing a good do-it-yourself option. These are naturally used in short to medium production runs. Steel plates come in two options: thin steel for medium to long runs, and thick steel for very long runs. Both steel plate types are commonly processed by the plate supplier as it involves the use of specialized equipment.
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