Aqueous bleach compositions

Details Aqueous bleach compositions Aqueous bleach compositions

D - Textiles, Paper

06

L

8/87

D06L 3/02 (2006.01) C01B 15/037 (2006.01) C11D 3/39 (2006.01)

Patent

CA 1156404

- 1 - GC109 ASTRACT Aqueous Bleach Compositions The present invention relates to aqueous alkaline bleach compositions containing hydrogen peroxide. Under alkaline conditions, it is particularly difficult to prevent the hydrogen peroxide decomposing excessively rapidly during storage, but the addition of an alkaline additive minimises any change in the pH of washing solutions obtained by dissolution of generally bleach free washing compositions containing anionic surfactants. Hydrogen peroxide-containing aqueous alkaline bleach having acceptable peroxide stability can be obtained by employing an alcohol, preferably ethanol, in conjunction with a phosphonate, especially ethylene (diamino tetramethylene phosphonate,) particularly with a polyhydroxy carboxylate, preferably gluconate, or an amino acetate. The liquid bleach can contain a small proportion of a surfactant.

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