7. Edition layout color
Tint should be dominated by bright shades.
Newsprint is uncoated and has a background color. Bright tones help give the layout a brighter feel. Color is saturated. The newsprint is rough, and the screen used for printing is thick, and saturated colors are more striking.
Now many newspapers have purchased a digital proofing system. This system generally uses the internationally accepted ICC method for color correction. The color conversion fully takes into account the color gamut of newspaper printing, and combines the characteristics of newspaper printing to ensure the color, level of detail, and light and darkness of printed color samples. The contrast is highly consistent with the final printed newspaper. After adjusting the image group edition, this detection method can be used to improve the quality of the entire newspaper's image and group edition, and in particular, the printing effect of the advertisement picture can be predicted.
Of course, plate making is also an important factor that affects the printing quality of newspapers. Now newspaper newspaper making is generally divided into two kinds of crafts. One type of photofinisher output film after sun PS version. Using this process, we must strictly control several important data. The density of the dichroic film should be more than 3.2. The fog of the substrate (including the multi-layered film stack) should be less than 0.15. The linearity error should be plus or minus 1%.
To ensure the quality of the output film, the RIP software must perform curve validation each time a new roll of film is replaced or the developer fixer is replaced to ensure that the data and output film are consistent. It is also important to regularly maintain the machine, especially the punching machine. Shaiban conditions can be added to the information bar, to enhance the stability of the printing section.
Another process is computer direct plate making. It breaks through the limitations of the traditional platemaking process through two process steps of laser photofinishing, output filming, manual imposition, and printing, and avoids flower marks, dot variation, dot inconsistency, and manual spelling caused by differences in the exposure time of printing plates in the printing process. Errors and errors caused by printing.
Color newspapers need higher overprint accuracy, faster plate making, shorter printing time, and longer newspaper news deadlines. As a result, the technology has rapidly become popular among newspapers. There are few uncertainties in this platemaking process, and data and standardization are truly realized in the platemaking process.
In the production process, we must pay attention to the output linearity of the plate-making machine, ensure the percentage of outlet dots, and correctly control the temperature and replenishment volume of the plate liquid. The direct plate making system is a digital operation plate making process composed of a digital workflow, a plate making machine, a digital proofing machine, and a fully automatic bending plate punching machine. The introduction of this process has promoted the quality standardization and data control of newspaper printing. .
In short, to ensure the quality of newspaper printing, it is necessary to grasp the quality of the original manuscript from the picture, and ensure the quality of plate making. Data processing and standardization shall be implemented from the front-end processing to the final printing.