Patent ID: 8398226

Claim:
An inkjet printing system comprising (a) a plurality of static inkjet printing units each comprising at least one inkjet printing head; (b) an ink-receiving element comprising a poorly-absorbing or impermeable substrate; (c) an aqueous inkjet composition which comprises a polymeric compound comprising discrete particles responsive to an external stimulus, and a functional material, wherein the functional material may be incorporated as part of the polymeric particles, the particles causing the composition to have a first rheological state and a different second rheological state in response to a stimulated change in conditions, the first rheological state being associated with a first lower viscosity of the composition, wherein the particles have a first lower volume, enabling the composition to pass through an inkjet printhead orifice and the second rheological state being associated with a second higher viscosity of the composition, wherein the particles have a second higher volume, enabling immobilisation of droplets of the composition on a substrate therefore; and (d) means of drying the aqueous ink compositions only positioned downstream of the plurality of printing units.