METHODS FOR MANUFACTURING CURABLE INKS FOR DIGITAL OFFSET PRINTING APPLICATIONS AND THE INKS MADE THEREFROM

摘要

Methods for making pigmented, curable, liquid ink compositions, and the ink compositions prepared from the methods are disclosed. The method includes adding at least one monomer and a dispersant to mixing vessel, and metering into the mixing vessel at least one pigment over a period of time. The method further includes adding at least one initiator and at least one curing agent, and then milling the composition. The pigmented, curable, high viscosity liquid ink compositions are suitable for digital offset printing.

主权项

1. A pigmented, curable, liquid ink composition prepared by a method comprising:
a) adding to a mixing vessel at least one monomer or oligomer and at least one dispersant; b) heating the mixing vessel; c) adding at least one initiator and a thermal stabilizer, and optionally a leveling agent, while mixing; d) adding at least one pigment, and optionally an inorganic filler, while stirring to form a pigmented radiation curable ink composition; e) cooling the pigmented radiation curable ink composition to about room temperature; and f) milling the pigmented radiation curable ink composition to reduce a particle size of the pigmented, curable ink composition to less than about 1 μm to prepare a pigmented, curable, ink composition.