C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 7/18 (2006.01) C11D 3/08 (2006.01) C11D 3/12 (2006.01) C11D 3/33 (2006.01) C11D 3/39 (2006.01) C11D 3/395 (2006.01) C11D 7/54 (2006.01)
Patent
CA 2185545
A granular laundry composition is disclosed which comprises a source of available oxygen, a stabilizer like chelant together with an alkali metal salt of silicate. Such compositions allow to produce wash solutions wherein the bleaching activity is retained upon longer periods of time. Optionally said compositions may further comprise a soil suspender and be formulated so as to allow to keep the pH of the wash solution below 9.5 and thereby boost the cleaning performance on particulate soil (clay).
La présente invention concerne une composition lessivielle sous forme de granulés incluant une source d'oxygène disponible et un stabilisant tel qu'un agent chélateur associé à un sel alcalin métallique de silicate. De telles compositions permettent la production de solutions lessivielles dans lesquelles l'activité de blanchiment reste inhibée pendant des durées plus longues. Lesdites compositions peuvent facultativement comprendre en plus un agent anti-redéposition et être formulées pour maintenir le pH de la solution lessivielle en dessous de 9,5 et partant pour accroître le pouvoir lavant par rapport à une salissure particulière (l'argile).
Frasier Elli Marie
Trani Marina
Trigiante Giuseppe
Dimock Stratton Llp
The Procter & Gamble Company
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