B - Operations – Transporting – 08 – B
Patent
B - Operations, Transporting
08
B
B08B 3/08 (2006.01) C23G 1/12 (2006.01)
Patent
CA 2183659
In a process of cleaning aluminum cans by contact with a principal aqueous liquid cleaning composition containing acid and surfactants and subsequently rinsing the cleaned cans with an aqueous first postcleaning rinsing composition, the uniformity of draining (freedom from "water breaks") is improved by including aluminum cations in the first postcleaning rinsing composition.
La présente invention concerne un procédé de nettoyage de boîtes d'aluminium comportant les opérations suivantes: mise en contact des boîtes avec une composition lavante liquide à base aqueuse contenant de l'acide et des agents tensio-actifs; rinçage des boîtes lavées, avec une première composition aqueuse de rinçage après-lavage, l'amélioration de l'uniformité de l'égouttage (absence de "discontinuité de mouillage") résultant de l'incorporation de cations d'aluminium dans la première composition aqueuse de rinçage après-lavage.
Fick Thomas H.
Kelly Timm L.
Fetherstonhaugh & Co.
Henkel Corporation
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