White inkjet ink

A method of making a white inkjet ink, the method comprising:

• bead milling a slurry including about 25 wt % of a white pigment having a density less than 3 g/cm3;
• diluting the slurry to include about 5 wt % of the white pigment;
• selecting an anionic surfactant that will interact with the white pigment such that the white pigment exhibits, in the white inkjet ink, a substantially constant particle size over a predetermined time period, the substantially constant particle size ranging from about 100 nm to about 300 nm;
• and
• mixing the diluted slurry with the selected anionic surfactant, a latex particle, and a balance of water.

A printing method, comprising:

• selecting a white inkjet ink, including:
• an anionic surfactant having a molecular weight less than 10,000;
• a white pigment having i) a density less than 3 g/cm3, and ii) a substantially constant particle size over a predetermined time period, the substantially constant particle size ranging from about 100 nm to about 300 nm;
• a latex particle;
• and
• a balance of water;
• and
• thermal inkjet printing the white inkjet ink onto a medium.