Prepress Color Management Connection       The color management system is controlled by printing. On the contrary, printing control can only be obtained when the substrate color, three primary color ink color, ink overprint and other packaging printing variables are relatively stable and balanced.Prepress Color Management Connection.Prepress Color Management Connection       There is no doubt that three primary color ink printing has made great progress from original painting to scientific embossing, from photographic plate making to complete digital prepress. However, the printer must also improve the variability of raw materials directly related to the final printing products, such as ink and substrate. These variability, especially in the variability of substrates containing many types, has a great impact on color balance.         Color imbalance will cause overall color deviation of printed copies. Typically, when the overall color of printed […]

Direct Influencing Factors Of Printing Ink Color       The visual effect of printing ink is one of the important factors to measure the quality of printing. The following situations have a direct impact on printing ink.Direct Influencing Factors Of Printing Ink Color (I) influence of printing ink layer thickness and viscosity on printing ink color       Proper printing ink layer is an important measure to ensure the quality of printing ink and prevent printing from sticking and dirty. If the ink layer is too thick, its viscosity is bound to increase, which is easy to produce paper wool and affect the uniformity of ink color of printing. If the printing ink layer is too thin and the ink viscosity is insufficient, the printed ink will be too light and the visual effect of printing will be poor. With the extension of printing machine rotation time or the acceleration of printing speed, the friction coefficient increases, and the ink temperature will gradually increase. Dire […]

Grey Balance Control Problem        The process of producing visual neutral gray scale from three kinds of printing primary color inks involves the problem of gray balance. In the process of color separation, the gray balance can be confirmed by film and sample. Grey Balance Control Problem      In the process of proofing and printing with reference to the swop density standard, the dot sizes of the three printing primary colors of gray are usually different, and the dot sizes of cyan are usually larger than those of yellow and color. In the process of proofing and printing, the dot expansion must be controlled to keep the relative dot size the same as that of the original film, so as to maintain the gray balance.Grey Balance Control Problem        This parameter specification specifies the total percentage content of cyan, magenta, yellow and black in the black area of the printed image. In theory, the darkest area should be printed with 400% of the maximum total i […]

Decolorization And Anti Adhesion Of Flexible Packaging Prints      The decolorization phenomenon mentioned in this paper does not refer to the phenomenon of poor adhesion due to film tension. Decolorization and anti adhesion are generally a phenomenon that occurs only after printing with surface printing ink, and decolorization and anti adhesion have the same factors. Decolorization And Anti Adhesion Of Flexible Packaging Prints       It is precisely the emergence of anti sticking. In a certain environment, sticking the pattern of the printing surface to the film without printing gives people the feeling of decolorization. As a printing enterprise, it should be analyzed in detail.Decolorization And Anti Adhesion Of Flexible Packaging Prints       At present, the plastic surface printing ink produced by China’s ink manufacturers generally uses polyamide resin as binder, and the melting point of this resin is between 105 ℃ – 115 ℃, that is, after printing with […]