The difference between roller printing machine and rotary screen printing machine
Roller printing is a kind of printing process with copper rollers with concave patterns. It is also called copper roll printing. The drum is referred to as cylinder engraving. When printing, the cylinder surface coated with paste, with sharp and flat blade will not cut part of the cylinder surface paste scraping, the concave pattern is reserved in the paste. When the cylinder imprint on the fabric, color transfer to the fabric and printing patterns. Each cylinder of a printing paste, such as printing equipment and equipped with multi cylinder, which can continuously print color patterns. Roller printing in parts of the country also known as iron printing, the principle of consistent with our daily stamp;
Round screen printing is a kind of printing method that uses the scraper to print the paste in the circle net under pressure. There are several important aspects of rotary screen printing, which are different from other screen printing methods. Rotary screen printing and printing roller, Department of continuous process, printing fabric by wide rubber band is transported to the continuous movement of the rotary cylinder. The principle and the roller opposite to its, is in the round net (nickel net) as internal extravasation (by scraper, bar and slurry pressure) to complete printing;
The other one has to say the difference is rotary screen printing in large area printing saturation, especially the high weight of the fabric is not of course than the roller roller; at the same time (double-sided printing fabrics have obvious advantages, positive and negative) round net will not be able to;
The 2 processes are continuous printing, faster than the speed of roller printing; in fine pattern is by fine carving to decide on it from the theoretical precision can reach 20 micron, also reflected in the actual production, but the rotary screen printing precision is by nickel mesh fineness (mesh) to decide on the current market maturity, below 155 mesh is more reasonable;
