Suggested care of bearings and gears, solutions to plate cylinder over-impressions, corrective actions for misaligned anilox, plate and impression cylinders and cures for excessive impressions between plate and substrate are among the problems addressed in the troubleshooting guide. The lacquer chamber incorporates two scraper blades that can clean the surface of the roller leaving only a predetermined amount of lacquer in the rollers engraved cells.

Ink Proofers This is what enables the soda to get to the bottom of the cell – the fractured baking soda gets as small as 7-8 microns. We need to adjust anilox volume to the quantity of ink we want to transfer onto the substrate. Americas: ANILOX ROLLERS The key to sucess of the Anilox system is the engraved rollers. You’re seeing spots or ink being lifted off your print area. Harper GraphicSolutions, the technical service team affiliated with HarperScientific, employs hands-on industry veterans to assist converters with troubleshooting and problem solving. Our Technical Service team has seen it all-from mottled print to those dreaded halos-so they’ve compiled a list of the top issues faced by water-based flexo printers and their recommended solutions. The anilox is the heart of the printing press. Some cleaners will attack and corrode aluminum, and should obviously be avoided if you have rolls made from that material. In Flexo printing, the ratio of the plate screen to that of the anilox must be 1 to 3.5 or even 4. The higher the line count anilox roller, the higher chance of scoring the anilox roller, commented Mr Segbert. It is responsible for the transfer of a precisely specified quantity of ink onto the printing plate.

Water based flexo ink troubleshooting