C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 3/39 (2006.01) C11D 3/20 (2006.01) C11D 17/04 (2006.01)
Patent
CA 2539855
Stable aqueous laundry product provided in a first and second part contained within a package and physically separated from each other, where the first part comprises a liquid cleaning composition having a pH of from about 4 to about 10 and contains a detersive surfactant system; and a second part comprises a bleaching composition and has a pH of from about 0.5 to about 6, and contains an equilibrium peracid solution. The equilibrium peracid solution comprises: a source of hydrogen peroxide; from about 20% to about 98% water; a water soluble carboxylic acid; and a corresponding percarboxylic acid. Methods of laundering fabrics in a washing machine utilizing such laundry products.
L'invention concerne un produit à lessive aqueux stable réparti dans un premier compartiment et dans un second compartiment contenus dans un emballage et physiquement séparés l'un de l'autre. Le premier compartiment renferme une composition de nettoyage liquide qui a un pH compris entre 4 et 10 environ et qui contient un système tensioactif détergeant. Le second compartiment renferme une composition blanchissante qui a un pH compris entre 0,5 et 6 environ et qui contient une solution de peracide à l'équilibre. La solution de peracide à l'équilibre comprend : une source de peroxyde d'hydrogène ; entre 20 % et 98 % environ d'eau ; un acide carboxylique hydrosoluble ; et un acide percarboxylique correspondant. L'invention concerne également des procédés destinés au lavage de tissus dans une machine à laver à l'aide desdits produits à lessive.
Scialla Stefano
Sheets Connie Lynn
Kirby Eades Gale Baker
The Procter & Gamble Company
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