A device cures a UV-curable fluid, such as offset or inkjet printing ink, on a substrate by way of an emitter. The emitter includes at least two flash lamps which are disposed in a row. This provides a cost-efficient way of evenly and homogeneously curing UV-curable printing fluids at low environmental impact. There is also described a printing machine with a device for curing UV-curable printing ink.

An optical light reflectance measurement system above an imaging member surface measures fountain solution surface light reflectance interference on reflective substrate portions of the imaging member surface in real-time during a printing operation. The measured light reflectance interference corresponds to a thickness of the fountain solution layer and may be used in a feedback loop to actively control fountain solution layer thickness by adjusting the volumetric feed rate of fountain solution added onto the imaging member surface during a printing operation to reach a desired uniform thickness for the printing. This fountain solution monitoring system may be fully automated.

An image based correction system compensates for the image quality artifacts induced by thermal ghosting on evolving imaging member surfaces. With thermal ghosting directly tied to previous image content, a feed forward system determines thermal ghosting artifacts based on images previously rendered and generates an open loop gray-level correction to a current image that mitigates undesirable ghosting. For example, the correction system compensates for the thermal ghosting by making the current image “lighter” in areas that will be imaged onto warmer blanket regions, thereby cancelling out TRC differences between different temperature regions. A temperature sensor is used to measure the temperature of the imaging blanket due to the stresses induced by the image. This data is used to learn the parameters of the temperature model periodically during operation, and used in subsequent corrections to mitigate thermal ghosting in spite of changes in blanket properties over use and time.

A method and a device for manufacturing a base layer (3) having different degrees of hardness is disclosed. Further a workpiece with a base layer (3) manufactured by such method is disclosed.

A printing machine comprising advancement elements for advancing material in sheet form to be printed which are provided at least with a traction drum which is designed to receive, at an entry region, the material in sheet form to be printed and to convey it toward an exit region spaced circumferentially apart, along the direction of rotation of the traction drum about its own axis, from the entry region; analog print stations are arranged around the traction drum, between the entry region and the exit region and, between at least two analog print stations, conveyance means are provided for conveying the material in sheet form to be printed which arrives from the traction drum along an advancement path that has at least one advancement portion for advancing the material in sheet form to be printed which extends substantially straight, along which at least one digital print station is arranged.

The present invention is related to a method of curing a coated product comprising a substrate and a UV-curable coating composition applied onto a surface of said substrate, the method comprising the steps of transporting said coated product, by means of a web path, into a curing unit comprising a rotating unit, preferably a cylindrical body, and a treatment area formed between said rotating unit and said web path, said rotating unit and said web path having an even surface, wherein said coated product when being transported through said treatment area contacts the rotating unit and the web path so that no free areas between the coated product and the cylindrical body and the web path are present in said treatment area, and UV-curing said coated product present in said treatment area.

A method for direct transfer printing is disclosed. The method for direct transfer printing includes applying a fountain solution to an imaging blanket in a negative imagewise manner using an inkjet printhead, contacting the imaging blanket with a printing substrate, transferring the fountain solution from the imaging blanket to the printing substrate, contacting the printing substrate with an inking station, and depositing an ink film from the inking station to the printing substrate in one or more locations on the printing substrate where there is no fountain solution. A module for a direct transfer marking process and a direct transfer printing system are also disclosed.

A method for direct transfer printing is disclosed. The method for direct transfer printing includes applying a fountain solution to an imaging blanket in a negative imagewise manner using an inkjet printhead, contacting the imaging blanket with a printing substrate, transferring the fountain solution from the imaging blanket to the printing substrate, contacting the printing substrate with an inking station, and depositing an ink film from the inking station to the printing substrate in one or more locations on the printing substrate where there is no fountain solution. A module for a direct transfer marking process and a direct transfer printing system are also disclosed.

A machine for drying inks of the UV type, the machine including a supporting frame, which forms at least one exposure chamber, which can be accessed from the outside and accommodates at least one UV ray emission source. On the supporting frame, there is at least one carriage which supports rotatably at least one pan for supporting at least one object to be processed which is provided, on its surface, with at least one print provided by UV inks. Elements are furthermore provided for the rotational actuation of the pan; the carriage is movable in order to move the pan from an exposure position to at least one respective access position, in which the pan is arranged outside of the exposure chamber, in order to allow the loading or unloading of the object on or from the pan.

A system for printing documents and anti-forgery security papers especially banknotes is provided. The system includes a mechanical feeding mechanism, a hologram pattern print section, an invisible, fluorescence color and main colors pattern printing section using at least three units of ink jet, a varnish coating section, a rotating cylindrical silkscreen printing section for optical variable ink (OVI), a raised printing section, a delivery section, a paper and handle receiving section and a central computer control section. The system has been introduced to create various security features in securities wherein all of the processes including the raised printing are introduced in an all-in-on device.