Patent ID: 8772369

Claim:
A method of manufacturing a single batch latex ink-jet ink, comprising: emulsifying a pigment and a monomer in a solvent to form an emulsion; and polymerizing the monomer with a reaction condition sufficient to encapsulate the pigment and sufficient to form individual latex particulates, wherein the reaction condition sufficient to encapsulate the pigment and sufficient to form individual latex particles is decreasing an initiator loading for polymerization by adding a first amount of the initiator to initiate the polymerization and adding a second amount of initiator during polymerization such that the second amount is added over a period of at least 1 hour and wherein the second amount constitutes at least 30% of total initiator added; thereby forming a single batch latex ink-jet ink that includes less than about 0.5 wt % of latex particulates having a diameter of 50 nm or less, includes about 1 wt % to about 10 wt % of latex particulates having a diameter of about 100 nm to about 250 nm, and includes about 3 wt % to about 5 wt % of encapsulated pigment, wherein the weight percents are based on a total weight of the ink.