Pigment-based inkjet inks

A method of inkjet printing, comprising jetting an inkjet ink onto a media substrate, said inkjet ink comprising water;

• from 2 wt % to 9 wt % pigment solids;
• from 0.05 wt % to 2 wt % of an acetylenic diol non-ionic surfactant;
• from 0.05 wt % to 2 wt % of a second surfactant selected from a polysorbate having an HLB value of less than 15, a C12-C18 polyoxyethylene glycol ether having an EO value less than 20, or a perfluoropolyether including a polyethylene glycol primary alcohol or diol;
• and from 5 wt % to 50 wt % of an organic solvent system comprising triethylene glycol and a cyclic amide.

A method of making a pigment-based inkjet ink, comprising:

• preparing a liquid vehicle including water, organic solvent, surfactant, and a polymeric binder;
• and
• slowly adding pigment particles to disperse and suspend the pigment particles within the liquid vehicle,
• wherein the pigment-based inkjet ink after preparation comprises water;
• from 2 wt % to 9 wt % pigment solids;
• from 0.05 wt % to 2 wt % of an acetylenic diol non-ionic surfactant;
• from 0.05 wt % to 2 wt % of a second surfactant, said second surfactant being a polysorbate having an HLB value of less than 15, or a C12-C18 polyoxyethylene glycol ether having an ethylene oxide number less than 20, or a perfluoropolyether including a polyethylene glycol primary alcohol or diol;
• from 5 wt % to 50 wt % of an organic solvent system comprising triethylene glycol and a cyclic amide;
• and 0.1 wt % to 3 wt % polymeric binder.