The two vital raw materials needed for the production of bar soap are palm oil and caustic soda. Equipment neededThe core machines used for bar soap manufacturing include, oil refinery, boiling pot, amalgamator plodder/extruder cutler eyelet, and sealing machines. Production processThe production process follows the sequence below:Bleaching – the process of refining the palm to meet production standard. Saponification – mixture of the refined palm oil with caustic soda and heated to form intermediate products known as soap pellets. Amalgamator – at this stage, soap pellets are combined with fragrances and other materials, which are blended homogenously in the amalgamator.

Source: The Guardian June 12, 2020 03:00 UTC