Gravure printing—also known as rotogravure printing—is primarily a long-run, high-speed, high-quality printing method. In gravure printing, an image is acid-etched on the surface of a metal cylinder—one cylinder for each color—in a pattern of cells. The cylinder is etched with cells of different depths. These cells hold the ink that is transferred to the substrate. The dimensions of the cells must be precise because the deeper cells produce more intensive color than shallow cells. Although the digital file preparation requirements for gravure printing are similar to those of offset printing, contact the gravure print shop for any specific requirements concerning their digital files.
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