Hydrophilic pigment dispersant for an inkjet ink

A hydrophilic pigment dispersant for an inkjet ink, the dispersant comprising:

• water;
• and
• a hydrophilic polyurethane, the hydrophilic polyurethane having a weight average molecular weight ranging from about 3,000 to about 15,000, having an acid number ranging from about 50 to about 100, and having been formed from:
• a non-aromatic polyisocyanate present in an amount ranging from about 25 wt % to about 70 wt %;
• a polyol having a weight average molecular weight ranging from about 500 to about 5,000, the polyol being present in an amount ranging from about 0 wt % to about 60 wt %;
• an aromatic diol having a weight average molecular weight ranging from about 100 to about 1000, the aromatic diol being present in an amount ranging from about 0 wt % to about 30 wt %;
• an acid monomer having a hydroxyl functional group, an amino functional group, or both hydroxyl and amino functional groups, the acid monomer being present in an amount ranging from about 5 wt % to about 25 wt %;
• and
• a polyethyleneoxide compound having a hydroxyl functional group, an amino functional group, or both hydroxyl and amino functional groups, the polyethyleneoxide compound being present in an amount ranging from about 0 wt % to about 5 wt %;
• wherein at least one of the polyol or the aromatic diol is present;
• and wherein each of the weight percents are based on a total amount of the hydrophilic polyurethane in the inkjet pigment dispersant.