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The halftone dot is the most basic unit for forming graphics on offset printing plates. It is a regularly arranged solid dot with equal center distance and unequal area. The halftone dot is the basis of the lithographic copying process. , The most basic requirements for printing. In offset printing, dots play the following roles:
â‘ Responsible for presenting color image, brightness and chroma in printing effect.
â‘¡ In the printing process, it is the smallest unit of fat and water repellency and the basic element of image transmission.
â‘¢ In color synthesis, it is the organizer of image color, gradation and outline.