Abstract: Ink supply system (1) for digital printing device comprising: a supply tank (9) suitable for containing ink; a delivery tank (2), in fluid connection with said supply tank (9), suitable for containing ink; one or more delivery conduits (4) suitable for connecting said delivery tank (2) to one or more print heads (100) associatable with said supply system (1); first pressure adjusting means (10) suitable for controlling the pressure inside the delivery tank (2); a supply pump (6) suitable for moving ink from said supply tank (9) to said delivery tank (2); a first level sensor (7) suitable for performing the continuous reading of the level variations inside the delivery tank (2); wherein said supply pump (6) is continuously feed-back controlled on the basis of the reading of said first level sensor (7) for keeping a pre-defined level inside said delivery tank (2).

Abstract: A digital printing device, comprising a nozzle plates' cleaning bar (9) equipped with a plurality of cleaning heads (22) supported in a floating manner by a bar body (23), so as to adapt their own height to the one of an overlying printing module comprising a specific nozzle plate corresponding to the cleaning head (22).

Abstract: An adhesive composition polymerizable by applying ultraviolet radiation comprising an acrylate resin and a photoinitiator, said acrylate resin comprising at least one acrylate monomer, and optionally, an acrylate oligomer; a process for the application of a covering layer to a polymeric product comprising the step of applying the afore-mentioned adhesive composition above an ink layer for digital printing, preferably a U.V. ink, deposited on a surface of said planar substrate to define a printing pattern, thereby providing an interface layer between said planar substrate and said covering layer of subsequent application.

Abstract: Process for the application of a covering layer to a polymeric product (10), in particular a sheet or a panel, comprising the steps of: —providing a planar substrate (11) of polymeric material, with an ink layer (12) deposited on a surface of said planar substrate (11) to define a printing pattern; —applying, above said ink layer (12), an interface layer in a respective application station (3); —applying a covering layer (14) of transparent polymeric material, above said interface layer and as a protection of the printing pattern in a respective rolling station (4).

Abstract: A digital printing device, arranged to print onto a printing medium that is relatively movable with respect to a fixed frame in an advancement direction; comprising at least one printing module and equipped with at least one print head (4) whose nozzle plate (5) is arranged to print and at least one collection member (6), so shaped at the top as to define a collection tank (8); wherein said collection member (6) and said printing module are relatively movable with respect to each other so as to be able to take at least two alternative configurations, among which: at least one collection configuration, in which said collection member (6) is located below said printing module; and a printing configuration in which said collection member (6) is side by side, along said advancement direction, with the printing module.

Abstract: A digital printing device, comprising a nozzle plates' cleaning bar (9) equipped with a plurality of cleaning heads (22) supported in a floating manner by a bar body (23), so as to adapt their own height to the one of an overlying printing module comprising a specific nozzle plate corresponding to the cleaning head (22).

Abstract: Digital printing device having a print media advancement system, and comprising: a sliding surface (3) of the print media, arranged at a printing area with above a printing module of the digital printing device; means for dragging (4) the print media, arranged downstream and/or upstream the printing area and arranged to make the print media advance in an advancement direction (x) above said sliding surface (3); wherein said sliding surface (3) comprises blowing portions (35) destined to realize an air cushion between sliding surface and print media (100). The sliding surface further comprises at least a suction portion (30), arranged to realise a depression by locally putting the print media near said sliding surface.

Abstract: Method and respective device for the detection and correction of printing defects of a digital printing device (A) comprising the following steps: —arranging a digital printing device (A) equipped with one or more print heads (H) with a plurality of dispensing nozzles (N); —continuously controlling said plurality of dispensing nozzles (N) to realize a real printing pattern (RPP) on a printing medium (P); —continuously acquiring the real printing pattern (RPP); —detecting at least one printing defect (DF); —elaborating, onboard a control unit of the digital printing device (A), at least one compensation scheme to mask a detected printing defect (DF,); —applying said compensation device during the realization of said real printing pattern (RPP).

Abstract: Ink supply system (1) for digital printing device comprising: a supply tank (9) suitable for containing ink; a delivery tank (2), in fluid connection with said supply tank (9), suitable for containing ink; one or more delivery conduits (4) suitable for connecting said delivery tank (2) to one or more print heads (100) associatable with said supply system (1); first pressure adjusting means (10) suitable for controlling the pressure inside the delivery tank (2); a supply pump (6) suitable for moving ink from said supply tank (9) to said delivery tank (2); a first level sensor (7) suitable for performing the continuous reading of the level variations inside the delivery tank (2); wherein said supply pump (6) is continuously feed-back controlled on the basis of the reading of said first level sensor (7) for keeping a pre-defined level inside said delivery tank (2).

Abstract: Digital printing device having a print media advancement system, and comprising: a sliding surface (3) of the print media, arranged at a printing area with above a printing module of the digital printing device; means for dragging (4) the print media, arranged downstream and/or upstream the printing area and arranged to make the print media advance in an advancement direction (x) above said sliding surface (3); wherein said sliding surface (3) comprises blowing portions (35) destined to realize an air cushion between sliding surface and print media (100). The sliding surface further comprises at least a suction portion (30), arranged to realise a depression by locally putting the print media near said sliding surface.