Abstract:
The invention concerns an aqueous composition comprising water and a miscible liquid that has a low evaporation rate, for use in indirect inkjet printing, particularly for decorating ceramic materials, for example in the form of tiles and/or the like.
Abstract:
A heating solar panel (1) predisposed for conversion of electromagnetic radiation of solar origin incident on an absorbent surface (14) of the solar panel (1) into heat energy in a vector fluid, comprising internal surfaces (10) which are opposite one another and define a hollow space (11) predisposed for circulation of the vector fluid, the hollow space (11) communicating with outside the heating solar panel (1) via at least a delivery opening (12) and at least a return opening (13), at least the absorbent surface (14) of the panel being uniform. The absorbent surface (14) of the panel is flat.
Abstract:
An apparatus (10) and process for forming packs and stacking pallets of large-format ceramic tiles includes use of plier groups for removing single tiles exiting from a control and selection station of the tiles, piling the tiles in determined positions on a special support structure and transferring the piles of tiles to a wrapping station of the piles. A further plier group is used to remove the wrapped packs and deposit them, in a predetermined arrangement, on specific pallets destined for transport. The apparatus and relative process obviate a series of drawbacks connected with the prior art, which is essentially concerned with suitable treatment of small-to-medium format tiles.
Abstract:
A device for guiding a plunger (3) of a jack (2), comprising at least one hinged mechanism having an overall parallelogram arrangement in turn comprising members as follows: two con rods (4) having first ends thereof hinged to the plunger by means of pivots (14); two squared elements (5, 6) hinged on two shafts (15, 16) which have axes that are parallel to axes of the pivots (14) and to which second ends of the con rods are hinged at predetermined distances from the two shafts; a connecting element functioning as a con rod (7) and having ends hinged to the squared elements.
Abstract:
A control method for detecting the operating status of the nozzles of an ink-jet printhead, comprising the following steps: detecting an inlet pressure and an outlet pressure in a feeding channel (5) of the nozzles (6) in a closing condition of all the nozzles (6); detecting a reference pressure differential between the inlet pressure and the outlet pressure; opening each nozzle (6) in sequence and separately from the others; detecting the pressure differential between the inlet pressure and the outlet pressure in an opening condition of a single nozzle (6); comparing the detected differential pressure with the reference pressure differential.
Abstract:
An actuator device, particularly for ink-jet heads, comprising: two or more electromagnetic actuators or solenoids (S), each comprising a ferromagnetic core (2), and a conductive winding or coil (4), arranged concentrically to the ferromagnetic core (2); a containment body (5), which encloses the electromagnetic actuators (S); an insulator element (1) for each solenoid (S). Each insulator element (1) is made of a magnetic material and is disposed at least partially in proximity of a respective solenoid (S).
Abstract:
The present invention relates to a granular material for decorative use, in particular for use in digital control decoration, and to a process for the preparation thereof, characterized by a calcinating step at high temperatures.
Abstract:
An apparatus (10) for decorating ceramic tiles (11) includes combined use of printing heads (13) consisting of elastic silicone cylinders (15) provided with recessed cell matrices, and inkjet-type printing heads (14, 14' ), arranged sequentially above a conveyor belt (12) bearing the tiles to be decorated. The inkjet nozzles are electronically commanded according to activation rhythms and times suitable for continuously producing patterns and graphics having a length congruent with the length of the patterns and graphics produced by the elastic recessed cell matrices, the activation of the nozzles further being suitably synchronised with the angular position of the cylinders and of the conveyor belt. The above-mentioned apparatus provides, alongside a high level of reliability and limited financial outlay, a considerable production flexibility, typical of inkjet machines