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    DIGITAL PRINTING PROCESS
    6.
    发明申请
    DIGITAL PRINTING PROCESS 审中-公开

    公开(公告)号：US20180065358A1

    公开(公告)日：2018-03-08

    申请号：US15708151

    申请日：2017-09-19

    Applicant: LANDA CORPORATION LTD.

    Inventor： Benzion LANDA ,  Yehoshua SHEINMAN ,  Sagi ABRAMOVICH ,  Galia GOLODETZ ,  Gregory NAKHMANOVICH ,  Meir SORIA

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

    CPC classification number: B41J2/0057 ,  B41M5/0256 ,  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.

    INK FORMULATIONS AND FILM CONSTRUCTIONS THEREOF
    7.
    发明申请
    INK FORMULATIONS AND FILM CONSTRUCTIONS THEREOF 有权

    公开(公告)号：US20250084266A1

    公开(公告)日：2025-03-13

    申请号：US18885686

    申请日：2024-09-15

    Applicant: LANDA CORPORATION LTD.

    Inventor： Benzion LANDA ,  Gregory NAKHMANOVICH ,  Galia GOLODETZ ,  Sagi ABRAMOVICH

    IPC: C09D11/107 ,  C09D11/104 ,  C09D11/106 ,  C09D11/30 ,  C09D11/38

    Abstract: Ink formulations suitable for deposition upon the intermediate transfer member of an indirect printing system and for transfer therefrom to a substrate. The inks are aqueous inkjet inks comprising an organic polymeric resin and a colorant. Ink film constructions including a plurality of continuous ink films fixedly adhered to the printing substrate that can be obtained with these inks are also disclosed. The inks and the printed constructions are such that the ink films and the dried inks composing them have a first dynamic viscosity within a range of 106 cP to 5·107 cP at at least a first temperature within a first range of 60° C. to 87.5° C., and a second dynamic viscosity of at least 6·107 cP, for at least a second temperature within a second range of 50° C. to 55° C.

    DIGITAL PRINTING PROCESS
    9.
    发明申请
    DIGITAL PRINTING PROCESS 有权

    公开(公告)号：US20210283899A1

    公开(公告)日：2021-09-16

    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: B41J2/005 ,  B41M5/025

    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.

    Digital Printing Process
    10.
    发明申请
    Digital Printing Process 审中-公开

    公开(公告)号：US20180079201A1

    公开(公告)日：2018-03-22

    申请号：US15827538

    申请日：2017-11-30

    Applicant: LANDA CORPORATION LTD.

    Inventor： Benzion Landa ,  Yehoshua SHEINMAN ,  Sagi ABRAMOVICH ,  Galia GOLODETZ ,  Gregory NAKHMANOVICH ,  Meir SORIA

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

    CPC classification number: B41J2/0057 ,  B41M5/0256 ,  B41M5/03 ,  B41N10/00

    Abstract: A printing system is disclosed which includes a plurality of rollers configured to support and move a loop-shaped, flexible intermediate transfer member of at least 10 meters in length along a printing system path. The printing system further includes an image forming station configured to form an image on a portion of the intermediate transfer member, and an impression station configured to enable substantial transfer of the deposited image to a substrate. The printing system also includes at least one high-speed motor associated with the plurality of rollers and configured to move the loop-shaped flexible intermediate transfer member at a speed of at least about one meter per second. Moreover, the printing system includes guiding channels configured for exerting a lateral tensioning force on the loop-shaped intermediate transfer member as it is received within the guiding channels and circulates at the speed of at least about one meter per second.

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