A deodorant or antiperspirant soft solid composition is filled into
dispensing containers by injection moulding, i.e. under pressure,
preferably in the vicinity of its normal setting temperature. The
deodorant or antiperspirant composition is preferably continuously
produced in a screw extruder, especially a twin screw extruder, controlled
to deliver the composition in a suitably viscous state under low shear and
particularly for formulations in which a particulate antiperspirant is
suspended in a fluid carrier. The pressure in the injection head at the
point of injection is greater than 120 kPa and in many instances from 800
to 2000 kPa. The combined process offers benefits for controlled fill of
dispensing containers, particularly for formulations incorporating
sensitive ingredients and offers tolerance in composition temperature at
the time of fill.
