Color printing in a production situation will always be color printing, and is difficult to completely eradicate a fault, according to the chefs explain and personal summary, has the following approach: If the ink path, no problems, you should check whether the rubber gasket is standard, it recommended that the thickness of the pad should be] 35 wire, blankets best brands with aluminum strips and blankets are the new best. The new blanket in use for some time the best re-tighten again. If these are done after heat discoloration problem is still not resolved, then you may want to consider the problems of the teeth, dental pad dental piece should be cleaned, but it is best to take off spring cleaning. Check the paper the case of paper, including paper wind under the regulation of exhibitors color page printing, paper flatness between conventional, paper and paper pressed forward with, the operation of feeding the belt and so on. After you have done these you can try to print, and in proofing the best choice when better coated paper proofing, to avoid affecting the paper problem. For tissue on the impression of wind to try to open a small, open big for Thick moderation. After doing these color prints may be able to solve the problem, of course, there can not be resolved, if these efforts are still printed color Heidelberg notice for repair as soon as possible. Let the problem quickly resolved. Proofing ink hue is directly related to the formation of a neutral gray balance and color. At present in China with a four-color offset printing ink drying can be divided into two sets of criteria: a set of yellow, magenta, sky blue, black; another set when through yellow, magenta, sky blue, black. In two sets of the ink, magenta and magenta as the main difference. In some red main tone of the screen, as well as chunks of red color and the site will be two different situations: the magenta print will appear bright red, and the skin color area, unlike magenta little more or a little less so it will be reflected particularly sensitive; and when using a magenta ink, magenta curve will be slightly higher than the yellow curve is present in neutral equilibrium curve. The difference between the yellow and transparent yellow ink is in the yellow ink opacity weak. Therefore, when using the same color overprint yellow on the last time through, it is advantageous for the performance of color, but also in line with four-color printing color sequence. When using a different ink for printing, it will be different when the same color dot is formed, and therefore the balance of which will be difficult to ash scanning and data quality. To this end, proofing work under normal circumstances is always fixed using a set of ink, and never tamper proofing ink brand and model. At the same ink color formation process, its purity will affect the normal performance of Shanghai prints color capability. Effect of proofing process to ink purity, mainly due to: the proofer color change process, ink roller cleaning is not clean, the ink on the same color hue by residual ink effect. Therefore, manipulation of the ink during the operation to keep the original hue and purity is essential. To determine the relevant data of the ink is an effective method of controlling the use of ink hue reflection densitometer. Throughout the development of the printing industry status quo, using the characteristics of the ink it made the following requirements: 1. Modern printing equipment forward a multicolor printing line direction, requiring fast drying ink has characteristics that ink is transferred to the substrate material after fixation dried quickly in order to meet equipment for high-speed multi-color continuous printing requirements. 2. Modern printing requires ink does not dry quickly fixed crust, so as not to create obstacles to the normal printing, thereby better ensure print quality and efficiency in the printer and ink fountain rollers. 3. Requirements ink can not react chemically with the color page printing plates, can not have a corrosive effect on the printing plate, without reducing the print version of the anti-Indian forces. 4. Requirements ink color consistency, each batch of the same type of ink color corresponding to the same firm conjunctiva, India does not fade after trapping to produce light. In addition to transparent ink, the color ink should have a certain opacity, after and overprint, trapping the ink should maintain the original basic color characteristics. 5. Printing ink must adapt to different types of printing methods and printing equipment, such as offset printing ink should be water resistant, acid characteristic color page printing, gravure printing inks must be easily volatilized. 6. Printing inks must also have good anti set-off feature that the ink printed on top of the substrate, and instantly easy imprinting phenomenon over the bottom, in order to ensure efficiency and quality of printing. 7. Modern printing requires ink fineness better, that the ink pigments (including fillers) pigment particle size distribution of the particles in the coupling compound to remain thin and uniform, which can better prevent ills such as printing paste version produced. In addition to the good properties, the modern printing process also requires the ink with heat, light, acid, alkali and other properties, when the ink is transferred to the substrate, ink to be vibrant, to no color, no fade and no telegraphing , good use properties. The packaging and printing products also require ink printed on the substrate after, should have good abrasion characteristics. These characteristics of color pages printed design requirements, is an important way to improve printing efficiency and product quality is worth the ink manufacturers to develop further research and development issues, but also printers expect to solve production problems. DM color pages printed folding | beyond printing (certified) | dongkeng color pages printed by the Dongguan City, often beyond packaging products factory provided. 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.