MULTI-COMPARTMENT DETERGENT POUCH Russian patent published in 2013 - IPC C11D3/395 

FIELD: chemistry.

SUBSTANCE: multi-compartment pouch having a water-soluble film and having at least a first and a second compartment, wherein each compartment contains a composition, suitable for use in laundry, containing a surfactant, wherein the second compartment contains a whitening agent that exhibits a tinting efficiency of at least 5 and a wash removal value in the range 30% to 95%, wherein the compositions in the first and second compartments are liquid compositions and the whitening agent contains: at least one chromophore component containing thiophene dye and a thiazole dye, and at least one polymer component.

EFFECT: providing a method of adding highly efficient whitening agents to a liquid detergent, which enables to avoid undesirable side effects, prolonged service life of the substrate, neutralising yellowing of cellulose substrates.

8 cl, tbl