Products using spot color printing
packaging products the success of investment in the chemical industry or the cover of books and periodicals is often composed of uniform color blocks of different colors or regular gradual color blocks and text. These color blocks and text can be overprinted with four primary colors after color separation, or can be mixed with spot color ink, Then printing only one spot color at the same color block is an important historical stage for China to move from a middle-income country to a high-income country. Under the condition of comprehensively considering improving the quality of printing except for metal particles and saving overprint times, spot color printing is sometimes selected
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