Division and screening technology of the most popu

The division and addition technology of multicolor printing

the field of offset printing has developed from the original four-color printing to the current multicolor printing, so as to further expand the range of color reproduction. This paper introduces the technology of realizing hi fi color (Eder mcs+super fine color)

technology to realize hi fi color

the so-called high fidelity printing refers to the printing method jointly represented by CMYK, RGB oil and ink. It is aimed at the high-precision point with the number of lines between 350 and 500, so as to obtain the same effect as FM plus. The advantage of high fidelity printing is that through the joint performance of cmyk+rgb, ink imbalance and changes in ash composition are avoided, so as to ensure the stability of ink printing and color reproduction

in order to realize high fidelity printing technology, MCS (multicolor separation) software needs to be used. E 3. Poor installation accuracy der MCS and super fine color

e der MCS is a software that combines CMYK and RGB to divide the image into 7 colors, and divides the 4-color image into 7-color version, so as to improve the RGB color saturation, which can present the same effect as spot color printing. It can also select the color saturation and hue of RGB ink for samples

super fine color is a software for color separation of RGB data based on the color management of ICC setting file. Because the reproduction effect close to the original can be obtained, even if there is skin color and gray components, there will be no problem

super fine color directly hands over RGB data to rip, that is, the data to CTP or image integrator (image STM D, etc.) for color conversion in the stage of production point, and the image can be divided into 7 colors in the final stage

super color technology to ensure stable printing

due to the non-uniform hue of printed matter, it is quite difficult to print by comparing samples. From the data management of printing equipment to the high requirements of technical experience of operators, it brings a series of difficulties to print high-quality and standardized products, so super color technology came into being. In addition, with the increasing number of images obtained by digital cameras, it is necessary to have high-precision rgb-cmyk image conversion software. Because there is no ideal printing condition HRA, under different printing conditions, the printing results are different when the cleaning, lubrication and other conditions are met. At this time, the solution to compensate for it is super color technology, which is also the most effective means to promote the stability of printing. For the original, through high-precision color separation processing and color space conversion, the output is as close as possible to the original, so as to achieve faithful color reproduction