The difference between wax emulsion and wax powder in water-based ink

what is the difference between adding wax emulsion and wax powder to water-based ink? various low-molecular, high-melting-point wax powders or wax emulsions are often added to the formulas of water-based ink coatings. the main purpose is to improve the coating surface during the thermal transfer process to have a full feel, wear resistance, scratch resistance…