To ensure color correction device information transmission process stability, reliability and sustainability requirements for input devices, display devices, output devices for a more "F, in order to ensure that they work best. Input correction: that of the input device brightness, contrast, black and white field (RGB balance) to be corrected. For example, after correction scanner, for the same original, no matter what time scanning, you should get the same image data. Monitor calibration: the display card according to the image data of color information displayed on the display accurate color. Output Correction: correction of imagesetter, is based on a correct image display; presses and proofers for correction must be made to the equipment used by the paper, ink and other printing materials meet standards. 2, device characterization As mentioned earlier, one of the core color management work is to build a device file that acts as a standard color space of two bridges (PCS). Simply put, the color management system based on the characteristics of the file input device to transfer data files to the color space of the properties file, according to the output device (monitor, proofer) features documents Dongguan color card printing quotes, the color data file Information is transferred to the color space of the output device, thus ensuring workflow consistency of color reproduction. Effect of smoothness of paper print quality of the so-called smoothness of the paper refers to the surface roughness of the paper.张平清 of paper is a very important paper performance, smoothness and print smoothness of the paper is somewhat different, as the discussion of its impact on print quality, here refers only to print smoothness of the paper. Smoothness is lower newsprint various types of printing paper, which is the main constituent in the long fiber Dongguan stickers color card printing, the use of short fiber filled and appropriate calendering process, the lower its surface smoothness. Currently newspaper offset printing process has been in the production of universal application, is offset by the production of oil and water-immiscible principle, the printing pressure is smaller than the stereotype, in order to obtain good graphic quality, we must ensure that the paper had good surface smoothness. Using surface smoother newspaper paper production, due to better contact for the transfer of ink imprint obtain higher network quality, so clear and full graphics reproduced on paper. With the expansion of production scale and color development in recent years, the newspaper reported, the surface smoothness of the paper's requirements are also rising network is an essential element of a printed copy of the tone at 50% dot 100LPI under its diameter of only about 0.2mm. If the paper surface smoothness poor color card printing, network so prone to incomplete deformation phenomena and cause the loss of small outlets, influence levels of image reproduction and graphic quality, especially have a serious impact on the reproduction of fine detail. To make the picture complete reproduction of coordination level, we must ensure that the network on the paper to get clear and accurate form. We have such an experience, the better the surface thirst of the paper bag color card printing, Dongguan, the higher its quality dot reproduction, clear and neat ideas. From the microscopic point of view, rough paper due to insufficient pressure recess leaving dots of ink can not be sufficiently transferred here, a certain degree of network deformation even incomplete, the quality of the newspaper will be a noticeable impact; smoothness of the paper high, medium and small dot printing process is not easy to lose, can effectively ensure the level of rich picture of text, good color reproduction Dongguan stickers color card printing, beyond printing (certified), color cards printed by the Dongguan City, often beyond packaging products plant available. Dongguan Chang-ping beyond packaging products plant (www.dgcyp.com) Dongguan, Guangdong, printing paper leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In all walks of life beyond the printing leadership with the staff warmly welcomed the inquiry negotiations to create a better future beyond printing.