PRINTING INK COMPOSITION AND A METHOD FOR PREPARATION THEREOF Russian patent published in 2004 - IPC

FIELD: printing materials. SUBSTANCE: invention, in particular, relates to organosoluble printing ink for deep and flexographic print. Alcohol-based printing ink composition contains 0.0005-2.5% water-soluble organic dye, 2-15% ethylcellulose and/or colophony-maleic resin binder, and 2-6% at least one component selected from ethylcellosolve and butylcellosolve. Ink preparation method envisages initially preparing lacquer by binder-alcohol mixing followed by addition of above-mentioned at least one component, after which part of thus prepared lacquer is combined with dye, resulting concentrate is dispersed and diluted with the same lacquer. EFFECT: enabled preparation of colorless print developing color upon effect of water and increased stability of paints during storage and printing. 10 cl, 2 tbl, 8 ex