How to check the output of CDI files before processing

The pre-press processed CDI file should be checked before entering the next process. Since there is no film output in the CDI plate-making method, how to ensure the accuracy of the file before the engraving of the printing plate becomes the most critical issue.

With the help of Finaleye software of Esko-Graphics company, the completed files (file format is limited to AI, EPS, GRS, etc.) are routinely checked. The software can check the buckle method and buckle size of the live parts, the net formation of the flat screen color block, the dot percentage of any part of the gradient bar, the proportion of each color version in the four-color diagram, the color display of each color version, Quantity etc. For flexo printing, spot colors are frequently used in various types of jobs, which is easy for Finaleye to check, especially for the overprinting of small text and thin lines or dark versions. The software can be checked out at a glance, and in the software, the effect of future printing can be visually displayed by editing the hue of the ink. However, the biggest disadvantage of this software is that it cannot check files linked to EPS images with spot color channels. Such files need to be converted to TIFF format and then checked, but the premise is to ignore the spot colors in the figure (make sure to Have checked that the spot colors in the picture are correct).

If you have a digital proofing device, you can use digital proofing to print out more difficult jobs to check the overall effect of the job more intuitively. For relatively simple jobs, you can print ordinary color prints to check the overall effect. It is recommended that you must bring a knife mold line when making a manuscript, in order to observe whether the finished pattern that is die-cut in the future is beautiful, centered, and whether the position size meets the product requirements. For products with relatively complicated die cutting lines, such as various paper cups, cigarette cases, special boxes, pillow-shaped back seal bags, etc., the printed color manuscript needs to be folded and formed according to its die line to check whether the die line It conforms to the geometric size required for its forming, and prevents it from being found that it cannot be formed according to this size when the printing is completed after die cutting.

For orders using a special process, it is recommended to check the color draft. For example, there are multiple spot colors, and some hot stamping (or hot stamping), which must be partially whitened and partially glazed. It is usually made in multiple layers before printing. In this case, check Is more troublesome. It is recommended to print the color separation manuscript to check, because the content on the color separation manuscript is the content to be done on the printing plate in the future, and the inspection is more intuitive and clear. If the company is equipped with a color separation printer, just print the color separation draft and check it.

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