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    Ink formulations and film constructions thereof
    21.
    发明授权
    Ink formulations and film constructions thereof 有权

    公开(公告)号：US10759953B2

    公开(公告)日：2020-09-01

    申请号：US16048299

    申请日：2018-07-29

    Applicant: LANDA CORPORATION LTD.

    Inventor： Benzion Landa ,  Gregory Nakhmanovich ,  Galia Golodetz ,  Sagi Abramovich

    IPC: C09D11/107 ,  C09D11/104 ,  C09D11/38 ,  C09D11/06 ,  C09D11/30 ,  C09D11/106

    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
    23.
    发明授权
    Digital printing process 有权

    公开(公告)号：US09776391B2

    公开(公告)日：2017-10-03

    申请号：US15175275

    申请日：2016-06-07

    Applicant: LANDA CORPORATION LTD.

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

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

    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 film constructions
    25.
    发明授权
    Ink film constructions 有权
    油墨膜结构

    公开(公告)号：US09327496B2

    公开(公告)日：2016-05-03

    申请号：US14382875

    申请日：2013-03-05

    Applicant: LANDA CORPORATION LTD.

    Inventor： Benzion Landa ,  Sagi Abramovich ,  Galia Golodetz ,  Gregory Nakhmanovich ,  Alon Asher ,  Mattetyahu Litvak

    IPC: B32B3/10 ,  B32B5/02 ,  B41J2/01 ,  C09D11/322 ,  B41M5/025 ,  B41M5/03 ,  D06Q1/00 ,  D06P3/00 ,  B05D1/00 ,  D06P1/00

    CPC classification number: B41J2/01 ,  B05D1/00 ,  B32B3/10 ,  B32B5/02 ,  B41M5/0256 ,  B41M5/03 ,  C09D11/322 ,  C09D11/324 ,  C09D133/08 ,  C09D175/08 ,  C09D183/04 ,  D06P1/00 ,  D06P3/00 ,  D06Q1/00 ,  D21H19/58 ,  D21H19/62 ,  Y10T428/24802 ,  Y10T428/24934

    Abstract: An ink film construction including: (a) a first printing substrate selected from the group consisting of an uncoated fibrous printing substrate, a commodity coated fibrous printing substrate, and a plastic printing substrate; and (b) an ink dot set contained within a square geometric projection projecting on the first printing substrate, the ink dot set containing at least 10 distinct ink dots, fixedly adhered to a surface of the first printing substrate, all the ink dots within the square geometric projection being counted as individual members of the set, each of the ink dots containing at least one colorant dispersed in an organic polymeric resin, each of the dots having an average thickness of less than 2,000 nm, and a diameter of 5 to 300 micrometers; each ink dot of the ink dots having a generally convex shape in which a deviation from convexity, (DCdot), is defined by: DCdot=1−AA/CSA, AA being a calculated projected area of the dot, the area disposed generally parallel to the first fibrous printing substrate; and CSA being a surface area of a convex shape that minimally bounds a contour of the projected area; wherein a mean deviation from convexity (DCdotmean) of the ink dot set is at most 0.05.

    Abstract translation: 一种墨膜结构，包括：（a）第一印刷基材，其选自未涂布的纤维印刷基材，商品涂布的纤维印刷基材和塑料印刷基材; 和（b）包含在投影在第一印刷基板上的正方形几何投影内的墨点组，该墨点组包含至少10个不同的墨点，固定地附着在第一印刷基板的表面上， 正方形几何投影被视为该组的各个成员，每个墨点包含分散在有机聚合物树脂中的至少一种着色剂，每个点的平均厚度小于2,000nm，直径为5至300 微米; 油墨点的每个墨点具有大体上凸起的形状，其中与凸度（DCdot）的偏差由下式定义：DCdot = 1-AA / CSA，AA是点的计算投影面积，大致平行设置的面积 到第一纤维印刷基材; 并且CSA是最小限度地限制投影区域的轮廓的凸形的表面区域; 其中，墨点组的平均偏差（DCdotmean）为0.05以下。

    INK FILM CONSTRUCTIONS
    26.
    发明申请
    INK FILM CONSTRUCTIONS 有权
    墨水膜结构

    公开(公告)号：US20150024180A1

    公开(公告)日：2015-01-22

    申请号：US14382875

    申请日：2013-03-05

    Applicant: LANDA CORPORATION LTD.

    Inventor： Benzion Landa ,  Sagi Abramovich ,  Galia Golodetz ,  Gregory Nakhmanovich ,  Alon Asher ,  Mattetyahu Litvak

    IPC: B41J2/01

    CPC classification number: B41J2/01 ,  B05D1/00 ,  B32B3/10 ,  B32B5/02 ,  B41M5/0256 ,  B41M5/03 ,  C09D11/322 ,  C09D11/324 ,  C09D133/08 ,  C09D175/08 ,  C09D183/04 ,  D06P1/00 ,  D06P3/00 ,  D06Q1/00 ,  D21H19/58 ,  D21H19/62 ,  Y10T428/24802 ,  Y10T428/24934

    Abstract: An ink film construction including: (a) a first printing substrate selected from the group consisting of an uncoated fibrous printing substrate, a commodity coated fibrous printing substrate, and a plastic printing substrate; and (b) an ink dot set contained within a square geometric projection projecting on the first printing substrate, the ink dot set containing at least 10 distinct ink dots, fixedly adhered to a surface of the first printing substrate, all the ink dots within the square geometric projection being counted as individual members of the set, each of the ink dots containing at least one colorant dispersed in an organic polymeric resin, each of the dots having an average thickness of less than 2,000 nm, and a diameter of 5 to 300 micrometers; each ink dot of the ink dots having a generally convex shape in which a deviation from convexity, (DCdot), is defined by: DCdot=1−AA/CSA, AA being a calculated projected area of the dot, the area disposed generally parallel to the first fibrous printing substrate; and CSA being a surface area of a convex shape that minimally bounds a contour of the projected area; wherein a mean deviation from convexity (DCdot mean) of the ink dot set is at most 0.05.

    Abstract translation: 一种墨膜结构，包括：（a）第一印刷基材，其选自未涂布的纤维印刷基材，商品涂布的纤维印刷基材和塑料印刷基材; 和（b）包含在投影在第一印刷基板上的正方形几何投影内的墨点组，该墨点组包含至少10个不同的墨点，固定地附着在第一印刷基板的表面上， 正方形几何投影被视为该组的各个成员，每个墨点包含分散在有机聚合物树脂中的至少一种着色剂，每个点的平均厚度小于2,000nm，直径为5至300 微米; 油墨点的每个墨点具有大体上凸起的形状，其中与凸度（DCdot）的偏差由下式定义：DCdot = 1-AA / CSA，AA是点的计算投影面积，大致平行设置的面积 到第一纤维印刷基材; 并且CSA是最小限度地限制投影区域的轮廓的凸形的表面区域; 其中墨点组的平均凸度偏差（DCdot mean）为0.05以下。

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