Stabilization of oxidation-sensitive ingredients in percarbonate detergent compositions

Granular laundry detergents are formulated with percarbonate bleach and oxidation-sensitive ingredients such as brighteners, enzymes, perfumes and the like. The storage stability of such compositions is improved by the presence of silicate. For example, the tendency of stilbene-type brighteners to f...

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Bibliographische Detailangaben
Hauptverfasser: R. T. HARTSHORN, G. M. BAILLELY
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Granular laundry detergents are formulated with percarbonate bleach and oxidation-sensitive ingredients such as brighteners, enzymes, perfumes and the like. The storage stability of such compositions is improved by the presence of silicate. For example, the tendency of stilbene-type brighteners to form undesirable yellow shades in the presence of percarbonate is diminished by the incorporation of silicate materials into the granules.