The difference between the 60 and 100 lines of the printing roller
The characteristics compared with the traditional gravure, offset printing and convex printing flexo printing, flexo printing mode has its own distinctive characteristics: 1, less investment, quick effect, high efficiency. Flexo presses are much cheaper in comparison to gravure presses and offset presses of the same colour set. In addition, flexo printing presses, die-cutting, glazing and other processes in one, multi-channel processes can be completed at one time, without further purchase of the corresponding post-processing equipment, has a high return on investment. 2, the equipment structure is relatively simple, so the operation is relatively simple and convenient. 3, high production efficiency. Flexo printing is used to reel material, not only can realize the printing of double-sided printing materials, but also to complete the line of glazing (or film), bronzing, die-cutting, waste rejection, volume and other work. The production cycle is greatly shortened, the manpower, material and financial resources are saved, the production cost is lowered, and the economic benefit is improved. 4, the printing materials range is relatively wide, such as paper, plastic film, aluminum foil, self-adhesive paper and so on. 5. The quality of printed matter is good, the printing accuracy can reach 150 lines / inches, and the printed material is rich in layers, bright in color and good in visual effect, especially suitable for the requirements of packaging and printing. 6, the use of new water-based ink and solvent based ink, non-toxic, pollution-free, fully meet the requirements of green environmental protection, but also to meet the requirements of food packaging.
Printing machine paper feeding mechanism of printing paper is transported to the parts of the printing machine, printing and embossing device in the common role of the device, a printing plate graphic part of the ink is transferred to the substrate, thus completing a printed matter. All printed matter has a slight mark on the back of the paper, and the lines or edges of the mesh are neat. And the ink appears pale in the central part, and the relief is printed. The image edge compression uplift is heavy, and the slight bulge marks.
The principle of letterpress printing is relatively simple. In gravure printing, printing machine inking device to make the ink distribution, then the ink transferred to the printing plate through the roller, due to the graphic part relief is much higher than that of the graphic part, on the plate and therefore, only the ink roller transferred to the printing elements, rather than the graphic part no ink.
