Liquid toner dispersion having a specified relative conductivity and relative viscosity and process for transferring an image to a substrate

摘要

Disclosed is a liquid toner dispersion which has a relative low shear viscosity between 1.25 and 225 and a relative conductivity between 0.3 and 30. The liquid toner dispersion includes toner particles in a non-polar carrier liquid, as well as a dispersing agent. This liquid toner dispersion is used in a digital printing process including adding dispersing agent during recycling of excess liquid toner dispersion remaining on a development member after patterned transfer of liquid toner dispersion to the imaging member.

主权项

1. A liquid toner dispersion comprising toner particles in a substantially non-polar carrier liquid, which liquid toner dispersion has a solid content of between 15 and 35 wt %, wherein the liquid toner dispersion is intrinsically uncharged and has a relative conductivity between 0.5 and 30, and a relative low shear viscosity between 1.25 and 225, wherein
the relative conductivity and relative low shear viscosity are defined as a ratio of the conductivities and low shear viscosities of a liquid toner dispersion and a supernatant liquid obtained in centrifugation of the liquid toner dispersion.