Patent ID: 9328255
Filing Date: 2016-05-03
CPC Classification: C09D

Claim Text:
1. A method for preparing an ink-jet ink for color filter, comprising: mixing 5 wt % to 40 wt % of styrene, 1 wt % to 30 wt % of a (meth)acrylic ester monomer, 0.5 wt % to 5 wt % of an acidic monomer, 0.25 wt % to 5 wt % of a cross-linking monomer, 0.05 wt % to 0.5 wt % of an emulsifier adjuvant, and 0.05 wt % to 0.5 wt % of an oil soluble initiator so as to form a mixture, and adding 0.5 wt % to 10 wt % of an organic pigment or dye, and optionally 0.05 wt % to 0.5% of a nucleating promoter to the mixture to obtain an oil phase solution after being dissolved; dissolving 0.05 wt % to 2 wt % of an emulsifier and 0.05 wt % to 2 wt % of buffering agent to 40 wt % to 90 wt % of deionized water to obtain an aqueous phase solution; mixing the oil phase solution with the aqueous phase solution to obtain a fine emulsion after agitation and homogenization; heating the fine emulsion to an reaction temperature, adding 0.05 wt % to 0.5 wt % of a water soluble initiator to initiate polymerization, after the polymerization adjusting pH value to 9˜10, and obtaining an aqueous nano pigment dispersion by filtration; and adding a cold curing component to the aqueous nano pigment dispersion, and mixing evenly to obtain the ink-jet ink for color filter.