Different printed materials determine the different copy (assuming the standard exposure time is lOOs) copy in their daily work, the more common the original polyester film base there and sulfuric acid paper base; and if in accordance with the graphic Category can be divided into text line version, field color version, cable version, while cable version also have different types, such as flat screen, gradient version, layered version; some plates will be in the same block on the plate while mixing several graphic, relatively speaking, the exposure time will be more complicated to master. First, the computer typesetting directly out of sulfuric acid paper, polyester film base line text version of the collage into a large version. Exposure time is 120S. The amount of exposure both to ensure the integrity of the text lines, but also developing a thorough, but the edge of the film base, and traces of adhesive tape will still remain in the printed version, must seriously except dirty. Some of the original text lines not black enough, especially Typeface relatively small cross stroke. Copy will be short-term lack of more time painting; and the pattern not black enough, long proofing time, PS version after development, dull, printing ink when the relatively poor performance, affecting the quality of printing. Second, by the camera or copied out of the line of text version of the collage into a large version. Exposure time is approximately 250S. Because these original graphic density can reach 4.0, very dark. Exposure time increases, no significant effect on the lines of text, but it can be the original film edges, traces of adhesive tape to obtain a sufficient exposure, after developing the plate is clean, the basic need in addition to dirty, copy the efficiency can be improved. Third, the color level network printing down time of about 120s. Such printing down time can not be too much, especially to prevent the 3% of small dots disappear due to copy too much time. Fourth, the color gradation edition prints with flat screen, the 10% flat screen, copy more time Qishi tag printing, there will be bad network; more than 30% of the flat screen, the version is not much time there will be rotten net. Color correction color document printing color copying process is decomposition of the image information and color reduction combination of both processes. In the actual copying process, because the conditions are not ideal, there is a color difference is inevitable. Its color comes from three aspects: 1, the original color shift due to the photographic process itself and caused material and coloring medium color (color decay) color shift caused. 2, the color separation process light, lenses, filters and photomultiplier tubes error caused by the cast. 3, color reduction process error caused by paper and ink color cast. Must be color corrected. Color correction is necessary to eliminate the chromatic aberration during color copying an objective reality, but also to meet the special requirements when the original color reproduction of color correction. Color correction is usually cyan (Cyan), magenta (Magenta), yellow (Yellow), red (Red), green (Green) and blue (Violet), six colors as a reference. For a certain tone as the basic color of the image can be exaggerated to make the appropriate basic colors and shades to make it to the foot of the printing effect is more prominent, may be appropriate to reduce the amount of Hengli logo printed opposite color, to enhance the basic color of purity. Without affecting the overall picture gray balance based on the bridge tag printing, you can use the regional approach to deal with the subject of local color correction. For some gray as the main picture, an appropriate increase in color purity of color enhances the overall visual effect of the image. In short, the color correction is equipment, manuscripts, technology and operations personnel a comprehensive reflection of the quality of color reproduction in the only master them, to be able to the actual needs of users to be original and best performance. Changping tag printing, tag printing, beyond printing by the Dongguan City, often beyond packaging products factory provided. Dongguan Chang-ping beyond packaging products plant (www.dgcyp.com) strong, credible, in Dongguan, Guangdong paper printing industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead beyond printers and you hand into the brilliant, for a better future!