Warewashing composition comprising zinc and aluminum ions...

C - Chemistry – Metallurgy – 11 – D

Patent

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C11D 3/02 (2006.01) C11D 3/10 (2006.01) C11D 3/12 (2006.01) C11D 3/20 (2006.01)

Patent

CA 2567210

The warewashing detergent composition includes a cleaning agent, an alkaline source, and a corrosion inhibitor. The cleaning agent compises a detersive amount of a surfactant. The alkaline source is provided in an amount effective to provide a use composition having a pH of at least about 8. The corrosion inhibitor includes a source of aluminum ion and a source of zinc ion. The relative amounts of the source of zinc ion and the source of alunminum ion can be controlled to reduce visible filming when the warewashing detergent composition is used in the presence of hard water. Methods for using and manufacturing a warewashing detergent composition are provided.

Cette composition de détergent de lavage comprend un agent de lavage, une source alcaline et un inhibiteur de corrosion. Cet agent de lavage comprend une quantité détergente de tensioactif. La source alcaline est présent dans une quantité efficace pour une composition possédant un pH d'au moins environ 8. L'inhibiteur de corrosion comprend une source de ion d'aluminium et une source de ion de zinc. Les quantités relatives de source de ion de zinc et de source de ion d'aluminium peuvent être commandées de manière à réduire l'effet de films visible lorsqu'on utilise la composition de détergent de lavage en présence d'eau dure. Cette invention concerne aussi des procédés d'utilisation de fabrication de composition détergente de lavage.

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