C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
134/22
C11D 3/40 (2006.01) C11D 1/40 (2006.01) C11D 1/62 (2006.01) C11D 1/75 (2006.01) C11D 1/90 (2006.01) C11D 1/92 (2006.01)
Patent
CA 1329751
ABSTRACT An acidic, aqueous liquid detergent composition, especially suitable for toilet bowl cleaning, is provided with a colour-change ingredient to enable the user to monitor the concentration of the composition upon dilution with water when using the product. By including a detergent-active compound which exists in cationic form in the acid composition and a dye which undergoes a pH-dependent colour change in the acid pH range, the required colour change indication is obtained.
543417
Bereskin & Parr
Plc Unilever
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