A water-soluble or water-dispersible material for deposition onto a
substrate during a treatment process, the material comprising:
(i) a deposition enhancing part having a polymeric backbone; and
(ii) a benefit agent attached to the deposition enhancing part by a
hydrolytically stable bond;
The material undergoes during the treatment process, a chemical change
which does not involve the hydrolytically stable bond and by which change
the affinity of the material onto the substrate is increased.
