Manufacture of marbled detergent bars

Details Manufacture of marbled detergent bars Manufacture of marbled detergent bars

C - Chemistry, Metallurgy

11

D

18/720

C11D 13/18 (2006.01) C11D 13/08 (2006.01)

Patent

CA 1110419

Abstract of the Disclosure A liquid component can be introduced into a detergent bar by injecting liquid within or immediately downstream of a multi-apertured plate positioned before the compression cone of an extruder. The method can be used to produce marbled bars with the aid of a coloured liquid and is des- cribed in UK 1387567. When a double extruder is used together with a common compression cone the injected liquid becomes unevenly dis- tributed within the detergent. Even distribution of the liquid as striations is achieved by use of a partition in the cone to ensure each detergent stream is subjected to separate compression during movement down the cone. The partition extends to the final extrusion plate; the velo- cities of the two streams are equalised by having a common extrusion volume between the two screw extruders and the multi-apertured plate.

310007

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