Snapshot

Due to the semi-continuous process, low productivity, and non-continuous patterns of flat-bed screen printing, inventive machine makers developed rotary screen printing. In concept, the idea is to take a flat screen and simply shape it into a roll by sealing the ends of the flat screen together. The simple modification converts a semi-continuous process to a continuous one. In basic operation, rotary screen and flat screen-printing machines are very similar. Both use the same type of in-feed device, glue trough, rotating blanket (print table), dryer, and fixation equipment. The process involves initially feeding fabric onto the rubber blanket. As the fabric travels under the rotary screens, the screens turn with the fabric. The print paste is continuously fed to the interior of the screen through a color bar or pipe. As the screen rotates, the squeegee device pushes the print paste through the design areas of the screen onto the fabric. By converting the screen-printing process from semi-continuous to continuous, higher production speeds are obtained. The fact is that today’s rotary screen machines are highly productive, allow for the quick changeover of patterns, have few design limitations, and can be used for both continuous and discontinuous patterns. Estimates indicate that this technique controls approximately 65% of the printed fabric market worldwide.