INK PROVIDING ETCH-LIKE EFFECT FOR PRINTING ON CERAMIC SURFACES

• Main Authors: ERON, GERA, VINETSKY, YELENA, MAGDASSI, SHLOMO, LIRAZ, ELIANE, FEINSCHMIDT, AVI
• Format: Patent
• Language: English; French
• Published: 05.04.2007
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; CORRECTION OF TYPOGRAPHICAL ERRORS; DYES; FILLING PASTES; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; INKS; LINING MACHINES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; PRINTING; SELECTIVE PRINTING MECHANISMS; STAMPS; TRANSPORTING; TYPEWRITERS; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention relates to an ink-jet ink composition for printing on a ceramic substrate comprising: (a) a liquid vehicle; (b) sub-micron particles of binding composition having a melting point below 6000C; and (c) sub-micron particles causing an etch-like effect, said sub-micron particles are selected from metal oxide particles, high melting point frit particles, and a combination thereof, said sub-micron particles causing an etch-like effect have a melting point of at least 500C above the melting point of said sub-micron particles of binding composition. The invention further relates to a printing process using such ink and to a ceramic substrate printed with a pattern or image having an etch-like effect, by means of the printing process. L'invention concerne une composition d'encre pour impression par jet sur un substrat céramique comprenant: (a) un véhicule liquide; (b) des particules sub-microniques d'une composition de liaison dont le point de fusion est inférieur à 6000C; et (c) des particules sub-microniques à effet de gravure, lesdites sub-microniques étant prises parmi des particules d'oxyde métalliques, des particules de fritte à point de fusion élevé et des combinaisons des deux. Ces particules sub-microniques à effet de gravure ont un point de fusion supérieur d'au moins 500C à celui es dies particules sub-microniques de la composition de liaison. De plus, l'invention concerne un procédé d'impression au moyen d'une telle encre et un substrat en céramique sur lequel est imprimé un motif ou une image à effet de gravure au moyen dudit procédé.