Method for ink jetting opaque ink composition

A method of inkjet printing, comprising:

• providing a substrate,
• ink jetting an aqueous inkjet ink composition from a main fluid supply as a continuous stream that is broken into both printing drops and non-printing drops, forming a white printed image on the substrate with the printing drops, the white printed image having an opacity of at least 30%, and
• collecting and returning the non-printing drops to the main fluid supply,
• wherein:
• the aqueous inkjet ink composition comprises particles of titanium dioxide that are present in an amount of at least 4 weight % and up to and including 15 weight %, and the titanium dioxide particles have a 95th percentile particle size of less than 200 nm and a 50th percentile particle size of less than 130 nm, and
• the titanium dioxide particles are dispersed within the aqueous inkjet ink composition with a dispersing polymer that is a styrene-(meth)acrylic acid polymer, styrene-maleic anhydride polymer, or styrene-maleic acid polymer, wherein such dispersing polymer comprises at least 25 mol % of styrene recurring units and at least 20 mol % of recurring units derived from (meth)acrylic acid, maleic anhydride or maleic acid, respectively;
• and theweight ratio of the titanium dioxide particles to the dispersing polymer is from 19:1 to and including 2:1.