Patent ID: 8211608

Claim:
A process for producing a resin emulsion, comprising: (a) mixing a resin comprising a polyester having at least one constitutional unit selected from the group consisting of a constitutional unit derived from a trivalent or higher-valent alcohol component and a constitutional unit derived from a trivalent or higher-valent carboxylic acid component, an anionic surfactant, a nonionic surfactant and an aqueous medium with each other at a temperature not lower than a softening temperature (Ts) of the resin as measured by a flow tester method, the nonionic surfactant and the aqueous medium being used in amounts of from 0.1 to 1.0 part by weight and from 10 to 50 parts by weight, respectively, on the basis of 100 parts by weight of the resin; and (b) neutralizing a mixture obtained in (a) with a basic compound in an aqueous medium at a temperature not higher than a softening point (T 1 / 2 ) of the resin as measured by a flow tester method, wherein the basic compound is added in (b) without addition thereof in (a), and the total content of the constitutional unit derived from the trivalent or higher-valent alcohol component and the constitutional unit derived from the trivalent or higher-valent carboxylic acid component is 5 to 10 mole % of the polyester.