Abstract: This document discloses a system to dispense a precise and continuous amount of ink for a large printing press. The dispensing system can be judiciously combined into a more elaborate dispensing system that uses two chambers with ink having a different density to dispense ink with a precise, adjustable and stable ink density. The dispensing system can be used to compensate the drifts in quality observed in presses when the speed, or any environmentable parameters vary.

Abstract: The present invention concerns an inking for a flexographic or a rotogravure press. The inking system uses a very small amount of ink coupled with an ink source made of two tanks with two different inks. Thanks to feedback given by measuring the output directly on the printed support, the system mixes the ink in the optimal proportions to ensure an optimal printing quality at any time. It can compensate any effect due to environmental changes like the humidity or the temperature. This system, coupled with a seven colours press allows for the replacement of spot colours in most cases thereby saving times and costs.

Abstract: The present invention discloses a printing unit with an automated sleeve change process. A sleeve can be prepared for the next printing job while the current job is running, thereby reducing the changeover time. Also, the printing unit can handle printing sleeves of very different sizes without any special additional adjustments to be made. The printing unit translates the printing roller and the inking roller on a horizontal line to engage and dis-engage the printing roller. The invention is convenient for large printing sleeves because the sleeve can be slipped over a shaft that remains in the unit. The setup results in a very rigid system, which guarantees an excellent printing quality.

Abstract: The invention discloses an inking system for a rotary printing machine, like a flexographic or rotogravure press. The inking system uses the nip area between two cylinders of the machine as the sole source for inking the printing cylinder. This results in an inking system with very little ink, thereby gaining in reaction time and ink waste.

Abstract: A device and method for the control and management of the printing parameters of a printing machine, particularly with a plurality of consecutive printing processes, is presented. The device and method include at least one video camera associable with a printing and conversion assembly and movable along a motorized guide in order to acquire a print medium. An image processor is functionally associated with the video camera to search, recognize and measure on the image of the print medium acquired by the video camera the printing values of at least one reference register mark reproduced on the print medium. The image processor is functionally connected to a unit for the actuation of the printing and conversion assembly to correct and restabilize the printing values according to the difference between the printing values measured by the image processor and the desired theoretical printing values.

Abstract: This invention discloses an ink dispensing system for a printer using the nip area between the inking cylinder and the gravure/anilox cylinder as the sole source of inking. Our solution solves the problem of reducing the amount of ink present in the inking buffer, i.e. the nip area, of such printing machines, thereby accelerating the reaction time of an ink replacement and reducing the amount of waste and the cleaning time. The idea behind the invention is to provide ink to the nip area at selected locations when needed by using a dispensing apparatus that moves along the nip area.

Abstract: This document discloses a system to dispense a precise and continuous amount of ink for a large printing press. The dispensing system can be judiciously combined into a more elaborate dispensing system that uses two chambers with ink having a different density to dispense ink with a precise, adjustable and stable ink density. The dispensing system can be used to compensate the drifts in quality observed in presses when the speed, or any environmentable parameters vary.

Abstract: The present invention discloses a printing unit with an automated sleeve change process. A sleeve can be prepared for the next printing job while the current job is running, thereby reducing the changeover time. Also, the printing unit can handle printing sleeves of very different sizes without any special additional adjustments to be made. The printing unit translates the printing roller and the inking roller on a horizontal line to engage and dis-engage the printing roller. The invention is convenient for large printing sleeves because the sleeve can be slipped over a shaft that remains in the unit. The setup results in a very rigid system, which guarantees an excellent printing quality.

Abstract: The present invention relates to a device or method for detecting and adjusting the printing parameters in flexographic printing machines.

Abstract: The present invention concerns an inking for a flexographic or a rotogravure press. The inking system uses a very small amount of ink coupled with an ink source made of two tanks with two different inks. Thanks to feedback given by measuring the output directly on the printed support, the system mixes the ink in the optimal proportions to ensure an optimal printing quality at any time. It can compensate any effect due to environmental changes like the humidity or the temperature. This system, coupled with a seven colours press allows for the replacement of spot colours in most cases thereby saving times and costs.

Abstract: The invention discloses an inking system for a rotary printing machine, like a flexographic or rotogravure press. The inking system uses the nip area between two cylinders of the machine as the sole source for inking the printing cylinder. This results in an inking system with very little ink, thereby gaining in reaction time and ink waste.

Abstract: For a flexographic printing apparatus, an apparatus (1) and method for mounting a printing plate (2) on a printing cylinder (4) or a printing sleeve including a system for pre-alignment (5, 8) of a printing plate (2) and real-time alignment (5, 8) of the printing plate (2) during mounting.

Abstract: Apparatus (1) for changing a blade of a rotary die cutter, particularly for flexographic printing machines: a magnetic cylinder (3) configured to receive and support a die-cutting blade (5, 5?); a station (7) for inserting the blade (5, 5?) has a retention device (70) configured to retain the blade (5) in the insertion station; a guiding device (71) guides the blade (5, 5?) toward the magnetic cylinder (3); a station (9) for extracting the blade (5, 5?), has an extraction device (90) configured to remove the blade (5, 5?) from the magnetic cylinder (3).

Abstract: A machine for indirect ink-jet printing and more generally to a machine for indirect digital printing. A first transfer roller is at a printing position at which it provides ink to a first printing roller. The first printing roller engages and transfers ink onto a counter roller for the printing. When its printing has been completed, the first printing roller is moved to a storage position. A second printing roller is selectively moved from a waiting position to the working position to provide ink. The rollers are moved along guides between their positions.

Abstract: The present invention relates to a device for replacing the printing roller in a printing unit, in particular for in line rotary flexographic machines.

Abstract: A device for replacing the printing rollers of a printing unit, particularly for in-line flexographic rotary machines is disclosed and includes a work station for a first, working printing roller, a holding station for a second printing roller, a removal station for a printing roller to be removed, movement means, for the movement of the first printing roller from the work station to the removal station and for the movement of the second printing roller from the holding station to the work station.