The invention relates to a method for producing starch solutions of high
cation equivalent value (with a DS of 0.1-1.0). The starch to be
cationized, advantageously an oxidized starch, is slurried to form a
suspension of about 10-80% solids content in an aqueous mixture of a
cationizing agent. In the cationization 2,3-epoxypropyltrimethylammonium
chloride or an equivalent chlorohydrin-functional cationizing agent is
used by about 90-1100 g per kg starch solids, and a catalyst is added to
the slurry. The reaction is carried out at a high solids content of
40-80%, preferably 50-60%, in at least two successive steps, in the first
of which a temperature of about 5-40.degree. C. is maintained, and in the
second step a temperature of about 70-180.degree. C.
