A toner is disclosed that includes a toner binder of crystalline
sulfonated polyester, wherein the crystalline sulfonated polyester is 90%
by weight or more of the toner binder, and a colorant. In other
embodiments, the toner includes a crystalline sulfonated polyester and a
linear amorphous sulfonated polyester, and a colorant. In these
embodiments, the crystalline sulfonated polyester is from about 20% to
about 60% by weight of the toner binder and the linear amorphous
sulfonated polyester is from about 40% to about 80% by weight of the
toner binder. The toners possess excellent miniumum fixing temperatures
in the range of from about 80.degree. C. to about 130.degree. C.
Processes for preparing the toners are also described.