Lamberti Spa

Paolo Prampolini

Giuseppe Li Bassi

Giovanni Floridi

Stefano Crespi

Alan Nappa

Dario Fornara

Tamara Verzotti

Davide Ricco'

Ceramic tiles may be prepared employing a process characterized by the addition to the ceramic raw materials of an aqueous slurry comprising a swellable clay of the smectite family, a binder and a water-soluble salt of a monovalent cation. The ceramic raw materials mixed and then subjected to wet grinding to produce a slip. The thus obtained slip is then subjected to spray drying.

Process for making tiles

Method for decorating green or fired ceramic bodies by inkjet printing including the use of a ceramic inkjet ink which is prepared by milling a ceramic inorganic pigment in an organic medium in the presence of a dispersing agent which is the reaction product of a polyethyleneimine and a 12-hydroxystearic acid and &#x3b5;-caprolactone co-polyester, until the average particle size of the pigment is between 0.1 and 0.8 &#x3bc;m.

Inks for inkjet printers

Compound of Formula (1); wherein: Zis an organic radical comprising w amino groups, in which w is a number and 5&#x2266;w&#x2266;3,000; A and B are independently oxy-C-C-alkylene carbonyl groups or oxy-C-C-alkenylene carbonyl groups derived from hydroxy carboxylic acids or lactones; T is hydrogen or R&#x2014;CO&#x2014;, where R is a C-Chydrocarbyl group; Y is a C-C-alkylene radical linked to an amino group of Z; Y' is an ionic salt link between an amino group of Zand the terminal carbonyl of (A)-(B)-T; r and p are independently numbers between 0 and 50 and r+p&#x3e;2; s, m and v are numbers; 0.99w&#x2266;s+m&#x2266;2w; and 0.3w&#x2266;s+v&#x2266;2w are suitable as dispersants and milling aids. 

Dispersants

Ceramic inkjet inks comprising ceramic inorganic pigments having average particle size between 0.1 and 0.8 &#x3bc;m, an organic medium and a dispersant, the dispersant being the reaction product of a polyethyleneimine with a homo- or co-polyester based on lactic acid, and method for decorating green or fired ceramic bodies by the use of the above ceramic inkjet inks.

Ceramic inks for inkjet printers

Method for decorating green or fired ceramic bodies by inkjet printing comprising the use of a ceramic inkjet ink which is prepared by milling a ceramic inorganic pigment in an organic medium in the presence of a dispersant which is the reaction product of a polyethyleneimine and a ricinoleic acid polyester, until the average particle size of the pigment is between 0.1 and 0.8 &#x3bc;m.

The disclosure relates to printing mediums, useful for ceramic sinterable materials, that are in powder form and are based on glycols, urea and an inorganic absorbent, to ceramic inks compositions comprising the printing mediums and to methods for decorating green or fired ceramic bodies by the use of said printing mediums and compositions.

Ceramic mediums and inks in powder form

Ceramic inks comprising ceramic pigments dispersed in vehicles based on water and glycols and containing urea, and method for decorating green or fired ceramic bodies by the use of said inks.

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Castelnuovo Rangone, Italy

Paolo Prampolini