公开(公告)号：US11660856B2

公开(公告)日：2023-05-30

申请号：US17583372

申请日：2022-01-25

Applicant: LANDA CORPORATION LTD.

Inventor： Uriel Pomerantz ,  Vitaly Burkatovsky

IPC: B41J2/005 ,  B41J11/00 ,  B41J2/01

CPC classification number: B41J2/0057 ,  B41J11/0015 ,  B41J2002/012

Abstract: A printing system comprises an intermediate transfer member (ITM), an image forming station, a conveyer for driving rotation of the ITM, and a treatment station disposed downstream of the impression station and upstream of the image forming station configured for coating the ITM surface with a layer of a liquid treatment formulation, the treatment station comprising an applicator for applying the liquid treatment formulation to the ITM, a coating thickness-regulation assembly comprising a plurality of blades, a blade-replacement mechanism, and a blade-replacement controller for controlling the blade-replacement mechanism.

公开(公告)号：US11648772B2

公开(公告)日：2023-05-16

申请号：US17706636

申请日：2022-03-29

Applicant: LANDA CORPORATION LTD.

Inventor： Haggai Karlinski ,  Yishai Castel

IPC: B41J29/38 ,  B41J2/045 ,  B41J2/21

CPC classification number: B41J2/04588 ,  B41J2/04586 ,  B41J2/2103

Abstract: A digital printing system includes a print head and a processor. The print head is configured to jet droplets of ink. The a processor is further configured to translate a required shade of a color, to be printed at a given location on a substrate by the print head, into a sequence of pulses, the sequence including: (a) up to a predefined maximum number of driving pulses that cause the print head to jet respective droplets, and (b) a tickling pulse, which has a smaller amplitude than the driving pulses and which causes the print head to jet a droplet smaller than the droplets jetted in response to the driving pulses. The processor is additionally configured to apply the sequence of pulses to the print head.

公开(公告)号：US11623440B2

公开(公告)日：2023-04-11

申请号：US17694702

申请日：2022-03-15

Applicant: LANDA CORPORATION LTD.

Inventor： Helena Chechik ,  Shoham Livaderu ,  Matan Bar-On ,  Zohar Goldenstein

IPC: B41J2/01 ,  B41J2/21 ,  B41J11/00

Abstract: A friction reduction system for reducing friction of an intermediate transfer member (ITM) of a printing system, while the ITM is guided along the printing system by a guiding arrangement. The friction reduction system includes a fluid reservoir mounted within the printing system, a fluid depositing arrangement disposed along the ITM, and a control mechanism, adapted to control depositing of fluid, from the fluid depositing arrangement onto the guiding arrangement or onto at least a portion of the ITM. Depositing of the fluid reduces friction between the ITM and the guiding arrangement.

公开(公告)号：US20230037462A1

公开(公告)日：2023-02-09

申请号：US17963225

申请日：2022-10-11

Applicant: LANDA CORPORATION LTD.

Inventor： Vitaly Burkatovsky

IPC: B41J2/005 ,  B41J3/46 ,  B41J11/00 ,  B41J11/13

Abstract: Printing apparatus (20) includes a continuous blanket (24) and a set of motorized rollers (31), which advance the blanket at constant speed through an image area. Print bars (38) eject droplets of ink at respective locations onto the blanket in the image area. Monitoring rollers (42), in proximity to the locations of the print bars, contact the blanket to be rotated by blanket advancement. Each monitoring roller includes an encoder (44), which outputs a signal indicative of a rotation angle of the monitoring roller. A control unit (40) collects, during a calibration phase, the signal from the encoders over multiple rotations of the monitoring rollers, detects a deviation of the signal from the encoder relative to a clock signal having a predefined frequency, and computes runout correction factors. During an operational phase, the control unit applies the runout correction factors to synchronize the droplets ejection from the print bars.

公开(公告)号：US11559982B2

公开(公告)日：2023-01-24

申请号：US17184411

申请日：2021-02-24

Applicant: LANDA CORPORATION LTD.

Inventor： Benzion Landa ,  Yehoshua Sheinman ,  Sagi Abramovich ,  Galia Golodetz ,  Gregory Nakhmanovich ,  Meir Soria

IPC: B41J2/00 ,  B41J2/005 ,  B41M5/025 ,  B41M5/03 ,  B41N10/00

Abstract: A printing process is disclosed which comprises directing droplets of an ink onto an intermediate transfer member to form an ink image, the ink including an organic polymeric resin and a coloring agent in an aqueous carrier, and the transfer member having a hydrophobic outer surface so that each ink droplet in the ink image spreads on impinging upon the intermediate transfer member to form an ink film. The ink is dried while the ink image is being transported by the intermediate transfer member by evaporating the aqueous carrier from the ink image to leave a residue film of resin and coloring agent. The residue film is then transferred to a substrate. The chemical compositions of the ink and of the surface of the intermediate transfer member are selected such that attractive intermolecular forces between molecules in the outer skin of each droplet and on the surface of the intermediate transfer member counteract the tendency of the ink film produced by each droplet to bead under the action of the surface tension of the aqueous carrier, without causing each droplet to spread by wetting the surface of the intermediate transfer member.

公开(公告)号：US20230016492A1

公开(公告)日：2023-01-19

申请号：US17788335

申请日：2020-12-09

Applicant: LANDA CORPORATION LTD.

Inventor： Benzion Landa ,  Zohar Goldenstein ,  Tomer Schindler ,  Ronen Lalezar

IPC: B41J2/005 ,  G03G15/16

Abstract: A method of printing includes, applying to an intermediate transfer member (ITM) (44), one or more fluids that include at least a printing fluid for forming an image on the ITM (44). At least part of the image is transferred from the ITM (44) to a target substrate (50). Residues of the one or more fluids that were not transferred to the target substrate (50) and remained on the ITM (44), are transferred from the ITM (44) to one or more rotatable elements (112), and the residues are removed from the one or more rotatable elements (112).

公开(公告)号：US20230001710A1

公开(公告)日：2023-01-05

申请号：US17894172

申请日：2022-08-24

Applicant: Landa Corporation Ltd.

Inventor： Benzion Landa ,  Tomer Goral ,  Vitaly Burkatovsky

IPC: B41J3/46 ,  B41J2/005 ,  B41J2/175 ,  B41J29/393

Abstract: A system includes: (a) a flexible intermediate transfer member (ITM) including multiple layers and markers including: (i) a structure engraved, in at least one of the layers, at respective marking locations along the ITM, and (ii) at least part of the structure is filled with a filling material that changes one or both of optical and magnetic properties of the ITM, the ITM includes an outer layer for receiving ink droplets, and transferring the ink image to a target substrate, (b) sensing assemblies disposed at respective predefined locations relative to the ITM, and configured to produce signals indicative of respective positions of the markers, and (c) a processor, which is configured to receive the signals, and based on the signals, to control a deposition of the ink droplets on the ITM, and the processor is configured to detect a deformation of the ITM based on the first and second signals.

公开(公告)号：US11511536B2

公开(公告)日：2022-11-29

申请号：US16765878

申请日：2018-11-13

Applicant: LANDA CORPORATION LTD.

Inventor： Vitaly Burkatovsky

IPC: B41J2/005 ,  B41J3/46 ,  B41J11/00 ,  B41J11/13

Abstract: Printing apparatus (20) includes a continuous blanket (24) and a set of motorized rollers (31), which advance the blanket at a constant speed through an image area. One or more print bars (38) eject droplets of ink at respective locations onto the blanket in the image area. One or more monitoring rollers (42), in proximity to the locations of the print bars, contact the blanket so as to be rotated by advancement of the blanket. Each monitoring roller includes an encoder (44), which outputs a signal indicative of a rotation angle of the monitoring roller. A control unit (40) collects, during a calibration phase, the signal from the encoders over multiple rotations of the monitoring rollers and computes runout correction factors. During an operational phase, the control unit synchronizes ejection of the droplets from the print bars using the computed runout correction factors.

公开(公告)号：US20220274394A1

公开(公告)日：2022-09-01

申请号：US17694702

申请日：2022-03-15

Applicant: LANDA CORPORATION LTD.

Inventor： Helena CHECHIK ,  Shoham LIVADERU ,  Matan BAR-ON ,  Zohar GOLDENSTEIN

IPC: B41J2/01 ,  B41J2/21

Abstract: A friction reduction system for reducing friction of an intermediate transfer member (ITM) of a printing system, while the ITM is guided along the printing system by a guiding arrangement. The friction reduction system includes a fluid reservoir mounted within the printing system, a fluid depositing arrangement disposed along the ITM, and a control mechanism, adapted to control depositing of fluid, from the fluid depositing arrangement onto the guiding arrangement or onto at least a portion of the ITM. Depositing of the fluid reduces friction between the ITM and the guiding arrangement.

公开(公告)号：US20220119659A1

公开(公告)日：2022-04-21

申请号：US17414087

申请日：2020-01-01

Applicant: LANDA CORPORATION LTD.

Inventor： Benzion LANDA ,  Helena CHECHIK ,  Einat TIROSH ,  Moshe LEVANON ,  Gal FINKELSTEIN ,  Omer ASHKENAZI ,  On MERO ,  Dor LEVY

IPC: C09D11/322 ,  B41M5/00 ,  B41M5/025 ,  C09D11/38

Abstract: The present disclosure relates to formulations for use with an intermediate transfer members of indirect printing systems and printing methods utilizing same. The present disclosure further relates to intermediate transfer members having a release layer surface covered with the formulations of the invention. The present disclosure also relates to printed substrates, printed articles and printed patterns produced using the formulations of the invention and to kits comprising the formulations.