Gravure printing faults and elimination method

Daily production workshop of more or less will appear a little fault, through small make up a line of production workers with the enterprise, equipment installation and debugging of technicians, technical engineering personnel contact summarizes some contents in order to provide reference for everyone: a fault, inky shade uneven prints on a cyclical inky change phenomenon. Fault 2, imprinting hair paste print image level and level of terry, hair paste, graphic edge, the phenomenon of the burr. Failure three, blocking version of the ink dried up in the print edition of the nets hole, or plate mesh point by paper wool, paper powder overload phenomenon, called version. Fault part four, ink overflow field print, the phenomenon of the spots. Failure of five, there are the marks of scraping blade scratch on the print. Corresponding to the failure of its corresponding elimination method is actually very simple, as follows: failure of the elimination method are: the calibration plate cylinder of roundness, adjust the Angle of scraping knife, pressure or replace new scraping blade. Failure of elimination method: remove the static electricity on the surface of the substrates, in polar solvent is added to ink, properly increasing the printing pressure, adjust the position of the scraping blade, etc. Breakdown of the three methods are as follows: increase the amount of printing ink solvent, reduce the speed of the ink dry, using high surface strength of paper printing. Breakdown of the four methods are: add hard ink oil, improve the viscosity of the ink. Adjust the Angle of gravure printing machine scraping blade and improve printing speed, to replace deep web hole plate with shallow network hole plate, etc. Breakdown of the five methods are: using no foreign body with clean ink printing. Adjust the ink viscosity, dry and adhesion. Use good scraping blade, adjust the scraping blade and the Angle of the plate.