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The theory behind waterless printing is that the silicone material which makes up the non-image area of the plate has a very low surface energy. This material will resist ink provided the ink's viscosity is such that it has a greater affinity for itself than it does for silicone. One factor that will affect viscosity is temperature.
After the silicone layer cures, the original drawing is gently washed from the plate with water, dried, and inked with a roller. The silicone layer protects the non-printing areas of the image while allowing open areas (those free of silicone) to accept ink. [24]
The fountain roller transfers ink located in an ink pan to a second roller, an anilox roller. In modern flexographic printing, the anilox roll is referred to as a type of meter or metering roller. 2. Anilox roller The anilox roll is a unique characteristic of flexography. The anilox roller transfers a uniform thickness of ink to a flexible ...
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.
Textile printing is related to dyeing but in dyeing properly the whole fabric is uniformly covered with one colour, whereas in printing one or more colours are applied to it in certain parts only, and in sharply defined patterns. [1] In printing, wooden blocks, stencils, engraved plates, rollers, or silkscreens can be used to place colours on ...
The roller is passed systematically across the surface to produce an even layer of ink. The roller is then applied to the forme, block, stone or plate so that the ink is evenly transferred to the raised or receptive areas before the next stage of transferring the ink, by moderate pressure, to the printing surface or offset substrate.