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US 2010/0197555 A1Published application
Triphenodioxazine dyes
OwnerStephen Norman Batchelor, Jayne Michelle Birdinventors
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Abstract
The present invention concerns the use of a blue or violet triphenodioxazine direct dye in a laundry composition.
Claims13
A laundry composition comprising between 0.00001 to 0.01 wt % of a blue or violet triphenodioxazine direct dye and 2 to 70 wt % of a surfactant, wherein the triphenodioxazine direct dye is of the form:
- wherein the dye is substituted by 1 to 4 sulphonate groups and X is independently selected from:
- C1-C6-alkyl, alkyl ester, benzyl, F, Cl, Br and I.
Dependencies are inferred from the claim text.