Abstract: Embodiments of the invention relate to a method of indirect printing with an aqueous ink. In some embodiments, this method is performed with (i) a first aqueous ink component, the first aqueous ink component optionally being transparent; and (ii) a second aqueous ink component comprising colorant particles. Related apparatus, systems and treatment formulations are disclosed herein.

Abstract: The present disclosure relates to water-based inkjet ink formulations comprising a solvent containing water, at least one coloring agent, and at least one alkali-metal organosiliconate of Formula (I) Formula (I) wherein: R is C1-C5 alkyl group; Mi, M2, and M3 are each, independently of the other, selected from hydrogen or a cation of an alkali metal, wherein at least one of the Mi, M2 and M3 is a cation of an alkali metal. The water-based inkjet ink formulations are used in methods for preventing or minimizing print head deterioration. The present disclosure further relates to printing methods utilizing the water-based inkjet ink formulations and to printing systems comprising said formulations.

Abstract: A method of indirect digital printing is disclosed herein. The method employs (i) first (e.g. transparent) and second aqueous ink components (comprising colorant particles) and (ii) a target surface (e.g. hydrophobic) of an intermediate transfer member (ITM). A quantity of first ink component is deposited (e.g. by ink-jetting) onto the target surface and partially dried to produce a partially-dried layer thereon. Droplets of the second ink component are deposited onto the partially-dried layer of first ink component to form a wet, colored ink-image. Upon deposition of the droplets of the second ink component, the colorant particles from the second component penetrate into the partially-dried layer of the first ink component. The wet, colored image is dried into a tacky ink-image-bearing residue film which is transferred to the substrate. Physical and/or chemical properties of the first and second ink components as provided by various embodiments are disclosed herein.

Abstract: A method of indirect digital printing is disclosed herein. The method employs (i) first (e.g. transparent) and second aqueous ink components (comprising colorant particles) and (ii) a target surface (e.g. hydrophobic) of an intermediate transfer member (ITM). A quantity of first ink component is deposited (e.g. by ink-jetting) onto the target surface and partially dried to produce a partially-dried layer thereon. Droplets of the second ink component are deposited onto the partially-dried layer of first ink component to form a wet, colored ink-image. Upon deposition of the droplets of the second ink component, the colorant particles from the second component penetrate into the partially-dried layer of the first ink component. The wet, colored image is dried into a tacky ink-image-bearing residue film which is transferred to the substrate. Physical and/or chemical properties of the first and second ink components as provided by various embodiments are disclosed herein.