(1) color separation target
Timeliness is mainly used in the original class picture Illustrated, journals, customer demand for this type of printed product cycle is short, good quality, so to achieve high-quality color separation, separation type and set parameters in line with commercial web printing machine, it is necessary to pursue The best contrast of the picture, but also to enhance the color saturation, to enhance the appeal of printed matter with bright colors, to attract readers.
(2) Separation essentials
Due to the miscellaneous source of the originals and the unevenness of the pictures, the following two points should be used for color separation: 1 For the standard originals, all the information must be obtained from the original documents, and the density and outlets according to the commercial rotary printing. Increase the law, set the optimal dot tone range, achieve the ideal picture contrast, enhance the light sense, and set the best color saturation through the color correction function to highlight the visual impact of the color; 2 pairs of defective The manuscript should be processed through the later adjustment to achieve the effect of high-quality pictures. The adjustment should have a great effect, and it is not necessary to stick to the section.
(3) Separation settings
Based on CoatedGRACoL2006, create a new time-sensitive image-based manuscript ICC file, which can be set according to the printing conditions of the company's commercial rotary machine. For example, Separaton-Coated- is suitable for quality products. GCR2-320-92K and Separaton-Coated-GCR2-340-94K for products with good printing conditions and high quality requirements; select GCR color separation option, short-order black version, total ink setting is 320%~340% , C version is 81% ~ 86%, M version is 73% ~ 80%, Y version is 73% ~ 80%, K version is 92% ~ 94%, to ensure that the picture dark adjustment part reaches the best density value; The sub-highlight color version is 0%, which makes the highlights bright.
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