Control of particle growth with complexing agents

A method comprising:

• forming a mixture of an alkali metal sulfonated polyester resin, a colorant dispersion and optionally a wax dispersion,
• homogenizing the mixture,
• adding a zinc-containing coagulant to the mixture and aggregating the mixture to form aggregated particles, and
• coalescing the aggregated particles to form coalesced particles,
• wherein when a predetermined average particle size is achieved during the aggregation and/or coalescing step, adding a complexing agent that complexes with zinc ions of the zinc-containing coagulant in an amount effective to substantially halt any further particle growth.

A method comprising:

• forming a mixture of hydrophobic polyester resin emulsion, a colorant dispersion and optionally a wax dispersion,
• homogenizing the mixture,
• adding a zinc-containing coagulant to the mixture and aggregating the mixture to form aggregated particles, and
• coalescing the aggregated particles to form coalesced particles,
• wherein when a predetermined average particle size is achieved during the aggregation and/or coalescing step, ethylenediamine tetraacetic acid is added in an amount effective to substantially halt any further particle growth.