The present disclosure provides inks, ink sets, and method for manufacturing inkjet inks. The inkjet ink can comprise a colorant, a liquid vehicle, and a polyurethane dispersion comprising polyurethane particles dispersed in the liquid vehicle. The polyurethane particles can have a core-shell structure with a branched inner core structure, and wherein the core comprises an amine cross-linker in an amount of 0.1 wt % to 1 wt % and the shell comprises a polyol cross-linker in an amount of 0.5 wt % to 2 wt %.