Fabric washing process and detergent composition for use...

Details Fabric washing process and detergent composition for use... Fabric washing process and detergent composition for use...

C - Chemistry, Metallurgy

11

D

8/113, 134/29

C11D 3/06 (2006.01) C11D 11/00 (2006.01) D06L 1/16 (2006.01)

Patent

CA 1137384

ABSTRACT:- A process for washing fabrics includes the steps of contacting the fabrics with a liquor containing a detergent active compound and an orthophosphate and subsequently contacting the fabrics with a liquor containing a tripolyphosphate. The tripolyphosphate may be added to the orthophosphate-containing liquor or may be present in a separate liquor. In the former case the tripolyphosphate may be present from the start of the wash but in a form to delay its dissolution in the liquor, such as by being encapsulated, cogranulated or contained in a sachet. Delay times of about 5 minutes are disclosed. The method leads to reduced incrustation on fabrics.

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