Introduction to the cross color printing process o

Introduction to plate cross color printing process

in the packaging and decoration printing process, some trademark, packaging, book cover and other plate prints adopt cross color printing process to highlight the creativity of prints and improve the visual effect and artistic level of prints

the so-called cross color printing is to use the same base color plate to print two or more colors of ink at the same time. The method is to use a mold to separate the ink bucket into several small blocks according to the requirements of the design of the printing manuscript. However, 2 After the innovation ability is significantly enhanced, put various colors of inks into the ink bucket boxes corresponding to the vertical colors of different layouts. In this way, after the ink bucket rotates, all kinds of inks can be output at the same time, and under the action of the inking roller, the adjacent junction sections of all kinds of inks permeate and mix with each other, forming a transitional natural and exquisite color after being transmitted to the layout. This process of achieving multiple colors in one printing is the plate cross color printing process. Also called "differentiation color" printing; It is also known as "mixed color" printing and so on

cross color printing technology originated from relief printing machine, and later offset printing machine also adopted this printing technology, thus playing a better role in packaging and decoration printing. Because the process can achieve a variety of different levels of colors in one printing, the process method is convenient, the printing efficiency is high, the product cost is low, and the quality is excellent, which is deeply welcomed by the majority of printing customers

talking about the advantages of cross color printing process is obvious, so how to print cross color printing products? First of all, we must make a mold to isolate the ink. Due to the certain fluidity and permeability of the ink, when various colors of ink are put into the separation sections in the ink bucket, a special mold should be used to accurately separate the adjacent oil, so as to prevent the adjacent colors of ink from permeating and cascading with each other when the ink bucket rotates due to the poor precision of the mold, so as to change the printing hue and affect the printing effect. Therefore, the mold for isolating ink should be filled with soft lead. When pouring, first cut a model plate with a triangle with an arc edge with a slope and radian corresponding to the ink bucket steel sheet and iron roller with a thick cardboard, then put this model plate into the side of the ink bucket, adjust the distance between it and the side of the ink bucket according to the required mold thickness, and fix it slightly. Then pour the molten lead into the side of the separation, and after solidification, it becomes a mold for separating the ink. The thickness of the mold and the serial stroke of the inking roller will directly affect the connection depth between the two adjacent colors. Therefore, when printing cross color plate products, we should adjust the ink amount and line spacing according to the designed cross color spacing, and select the thickness specification of the mold, so as to print cross color prints that meet the requirements of the original design

to print cross color plate products well, in addition to carefully grasping the process, the operation technical specifications are also a key link related to the printing efficiency and quality. Therefore, when installing the plate, the printing pressure should be adjusted evenly and firmly, so as to make the plate receive ink evenly and ensure normal ink layer transfer. This is one aspect of the principle of airworthiness first in the development of C919 large aircraft. Another aspect is to adjust the ink output accurately, and the output of various colors of ink in the ink bucket should be uniform, so as to avoid uncoordinated "cross color" marks in the vertical layout, which will affect the product quality. When adjusting the ink delivery volume, it is advisable to adjust the stroke of the ink bucket iron roller to the maximum limit, and then adjust the gap between the steel sheet and the iron roller. The kelcai exhibition has played an important role in the local economy. In this way, the gap between the steel sheet and the iron roller can be relatively reduced when the stroke of the ink bucket iron roller is increased, and the ink layer can be thin and uniform. Due to the large inking stroke, a thick and balanced printing ink layer is formed after it is transferred to the layout. In addition, it is necessary to adjust the contact degree between the ink rollers and the height of the ink roller. In this way, the cross color plate products can keep the ink color of the layout uniform, and the color depth of the mixed color area between the cross colors can transition naturally, which makes people see not only the vision of exquisite prints, but also the feeling of a material experimental machine as a kind of artwork