Cleaning compositions containing a colorant stabilized...

Details Cleaning compositions containing a colorant stabilized... Cleaning compositions containing a colorant stabilized...

C - Chemistry, Metallurgy

11

D

134/23

C11D 3/16 (2006.01) C11D 3/40 (2006.01)

Patent

CA 1338733

An acidic, aqueous cleaning composition comprising a surfactant; up to about 50% of a higher boiling solvent, typically an alkyl ether of an alkylene glycol, said solvent introducing impurities into the composition in an amount and of a nature normally chemically incompatible with oxidizable dye chromophores; a dye in an amount to provide a desired tinctorial value, and oxalic acid or a salt thereof in an amount effective to retard fading of the dye. In another aspect of the inven- tion, the oxalic acid incorporated into compositions containing a solvent, a surfactant, and water, and optionally a dye pro- vides a beneficial cleaning result. In yet another aspect of the invention, the oxalic acid beneficially retards the develop- ment of malodors when the compositions of the present invention are contained in a PVC container. Broadly, the incorporation of oxalic acid in said solvent can be employed to neutralize said impurities.

573247

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