A dispersing resin of formula (I), T-P-Z-T (I). The dispersin resin of this formula is defined where T is at least one monocarboxylic acid, where Z includes at least one of a polyallylamine and a poly(C2-4-alkyleneimine), and where P is a polyester obtained by a process of reacting a dicarboxylic or a polycarboxylic acid and a diol or a polyol.