| 摘要 |
The present invention relates to a laundry detergent composition which provides a visual cue once an effective product dosing in an aqueous medium is attained. Also to a process for handwashing with the composition and to use of the composition as a sufficiency of dosage indicator. The laundry composition comprises : a) a detersive surfactant; b) a colour change indicator system comprising: i) an indicator dye capable of binding to divalent metal cations; ii) one or more other complexing agents for divalent metal cations, said complexing agent having a greater binding capacity than the indicator dye for said divalent metal cations at the pH of use,- and c) optionally carriers and adjuncts to 100 wt.%. |
