INK FOR DIGITAL PRINTING ON CERAMIC MATERIALS, METHOD OF DIGITAL PRINTING ON CERAMIC MATERIALS USING SAID INK, AND CERAMIC MATERIALS PRODUCED USING SAID PRINTING PROCESS Russian patent published in 2014 - IPC C09D11/00 B41M1/34 C04B33/14 C04B35/01 

FIELD: printing.

SUBSTANCE: invention relates to an ink set containing chromophoric metals for digital printing on ceramic materials. The ink set comprises liquid colouring compositions (A), (B), (C) and one from (D) and (E). The (A) comprises at least a compound of cobalt. The (B) comprises at least a compound of iron. The (C) comprises at least a compound of a metal selected from chromium, nickel and their mixtures. The (D) comprises at least a compound of cobalt and at least a compound of iron. The (E) comprises one or more compounds of zirconium. The said metal compounds decompose at a temperature of from 500 to 1300°C. When interacting with the ceramic material the metal compounds of compositions (A)-(D) form colured oxides or colured compounds. The compounds of zirconium from the composition (E) with the ceramic material form white oxides or white compounds. Also the method of decorating ceramic materials by digital printing using the specified set of ink and the decorated ceramic products produced using this method are described.

EFFECT: invention provides ceramic materials decorated with digital printing of wide range of colours with the effect of natural stone.

11 cl, 45 tbl, 5 ex