Cleaning tablets or water-softening tablets and their manufacture

摘要

A method of making cleaning or water-softening tablets involves making a premix of cleaning or water-softening particulates and a lubricant, for example a sucrose ester or sorbitan ester; feeding the premix into a feed port of an extruder; feeding a binder, for example polyethylene glycol, into the extruder at or downstream of the feed port, the binder being a solid at room temperature but being mixed with the cleaning or water-softening particles as a liquid or becoming a liquid inside the extruder; and extruding the resulting mixture into strands which are separated into tablets.