A composition and method of use for an...

C - Chemistry – Metallurgy – 11 – D

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C11D 7/12 (2006.01) C11D 3/00 (2006.01) C11D 7/18 (2006.01) C11D 7/26 (2006.01)

Patent

CA 2204608

Carpeting, upholstery, drapery and other textile fibers are cleaned by applying to the fibers, at ambient pressures, an aqueous, chemically carbonated cleaning composition prepared by admixing a carbonate salt solution, and an acid solution, such that the acid reacts with the carbonate salt to produce carbon dioxide coincident with application to a textile to be cleaned. Citric acid and sodium carbonate are the preferred acid and carbonate salt. In a preferred embodiment, urea is added to the acid solution to prevent yellowing and to improve cleaning ability. The compositions are preferably prepared and applied at an elevated temperature in the range of between about 140 and 200 ° F.

On nettoie des tapis, garnitures, tentures et autres fibres textiles en apppliquant à ces fibres, à pression ambiante, une composition aqueuse de nettoyage, chimiquement carbonée, préparée par mélange d'une solution d'un sel de carbonate et d'une solution acide, de façon que l'acide réagisse avec le sel de carbonate pour produire du dioxide de carbone, au moment de l'application à un textile à nettoyer. L'acide citrique et le carbonate de sodium représentent l'acide et le sel de carbonate préférés. Dans une variante préférée, on ajoute de l'urée à la solution acide pour prévenir le jaunissement et améliorer l'aptitude au nettoyage. Ces compositions se préparent et s'appliquent de préférence à une température élevée située entre 140 et 200 DEG F environ.

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