Patent ID: 11884089
Assignee: LANDA CORPORATION LTD.
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 1:
2. A method for printing using a printing system that includes a rotating intermediate transfer member (ITM) comprising an endless flexible belt, the method comprising:
a. at a treatment station, applying a solution of PEI (polyethleneimine) to an outer surface of the ITM so as to pre-treat the ITM outer surface;
b. applying droplets of an aqueous ink comprising an aqueous carrier to the pre-treated outer surface of the ITM, so as to form ink images upon the rotating ITM, wherein (i) the solution of PEI is evaporated prior to the formation of the ink images so that the ITM outer surface is substantially dry when the droplets of an aqueous ink are applied thereto and (ii) the droplets of the aqueous ink are applied at the image forming station;
c. at a drying station spaced from the image forming station, heating the ITM and the ink images thereon so as to evaporate the aqueous carrier from the ink images to leave a residue film; and
d. at an impression station spaced from the drying station, transferring the residue film to a sheet or web substrate, the impression station comprising an impression cylinder and a pressure cylinder, the pressure cylinder being configured to urge the belt against the impression cylinder so as to cause the residue film resting on the outer surface of the belt to be transferred onto the substrate that passes between the belt and the impression cylinder.