ADDITIVES FOR THE ADJUSTMENT OF PRINTING PASTES Printing pastes used in the production of tiles need to have distinct properties (e.g. viscosity, drying time). These can be tailored according to the individual customer’s requirements by introducing special additives that were particularly designed for this purpose.
Third-firing mediums are pasting agents used for printing inks to decorate onto fired glazes, which are non-absorbent in comparison with raw glazes.
Fixatives are required for the decoration onto unfired glazes directly after glaze application, to improve the touch-resistant finish of the glaze surface before printing. The touch-resistant finish of the designs that were printed first is increased during multi-colour decoration. This allows multi-colour printing.
We differ between two different types of binders for granulate application: GRANICER types are used for the liquid preparation of granules/grits to decorate tile surfaces with airless, double disk, bell and curtain coating machine. Complete coverage of the tile surface is achievable. Alternatively, DECOFLUX GR types act as binders for the application of dry glazes onto the coated tile surface.
Rotocolor and Laserroll mediums are available for the production of printing pastes with excellent pigment absorption. Special paste additives have been developed for different production methods according to the customer’s individual requirements.
Paste additives for decorating colours with excellent pigment absorption, and further specific product properties, are used for direct decoration of tiles by the screen printing process. Depending on the formulation of the screen printing mediums offered by Zschimmer & Schwarz, these mediums can be either used for fast-single-fired tiles (Monoporosa, Monocottura) or for fast-double-fired tiles.
