SAETT OCH ANORDNING FOER FOERBAETTRAD FAERGOEVERFOERING OCH PIGMENTDISPERGERING, SKUMDAEMPNING I FAERG, SAMT FOERHINDRANDE AV IGENFYLLNING AV RASTERVALSARS OCH DJUPTRYCKSCYLINDRARS CELLER ELLER OEPPNANDE AV REDAN IGENFYLLDA CELLER VID TRYCKNING

摘要

The printing ink used in printing machines for anilox as well as rotogravure processes is subjected to ultrasonics, continuously or discontinuously whereby gas bubbles in the ink are eliminated. A sufficient amount of ultrasonics energy of optimal wavelength is continuously supplied for maintaining cells open in screen pattern and gravure printing rolls, and for opening already packed cells.