Lamberti Spa

Stefano Crespi

Giuseppe Li Bassi

Giovanni Floridi

Paolo Prampolini

Alan Nappa

Dario Fornara

Tamara Verzotti

Dario Chiavacci

Davide Ricco'

Mattia Canziani

Laura Vigano'

Marco Antoniotti

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

Use of extruded pellets comprising carboxymethyl cellulose and at least another ceramic glaze additive for the preparation of ceramic glaze slips.

Additives for ceramic glazes

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 present invention relates to a rheology modifier for ceramic glazes comprising a water-swellable granulated clay, a carboxymethyl cellulose and possibly another natural gum. In another aspect the invention relates to the ceramic glaze and the glaze slip obtained using the above rheology modifier, which can be used for glazing green or fired ceramic bodies such as artware, tableware, tile, heavy clays products and sanitaryware.

Rheology modifier for ceramic glazes

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.

Growing community of inventors

Busto Arsizio, Italy

Stefano Crespi