Granular laundry bleaching composition
AssigneeThe Procter & Gamble Company
InventorsMarina Trani, Carlo Ricci
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Abstract
A particulate bleaching composition is disclosed which comprises particles of an alkali metal salt of percarbonate or mixtures thereof. The particles of the percarbonate bleach are coated and/or agglomerated with a stabilizing effective amount of a hydrophobic ester of citric acid or mixtures of the hydrophobic esters of citric acid.
Claims19
A stable particulate bleaching composition comprising particles of alkali metal salt of percarbonate bleach or mixtures of said particles of percarbonate bleach, wherein said particles of percarbonate bleach are coated with and/or agglomerated with a stabilizing effective amount of a hydrophobic ester of citric acid or mixtures of said hydrophobic esters of citric acid.
A method of manufacturing a stable particulate bleaching composition comprising particles of alkali metal salt of percarbonate bleach or mixtures of said particles of percarbonate bleach wherein said particles of percarbonate bleach are coated with and/or agglomerated with a stabilizing effective amount of a hydrophobic ester of citric acid or mixtures of said hydrophobic esters of citric acid, wherein said hydrophobic ester of citric acid is coated onto said particles of percarbonate bleach before their incorporation in said composition.
A method of manufacturing a stable particulate bleaching composition comprising particles of alkali metal salt of percarbonate bleach or mixtures of said particles of percarbonate bleach, wherein said particles of percarbonate bleach are coated with and/or agglomerated with a stabilizing effective amount of hydrophobic ester of citric acid or mixtures of said hydrophobic esters of citric acid, wherein said hydrophobic ester of citric acid is coated, in the last process step, onto a substantial portion of said particles of percarbonate bleach and said particulate ingredients.
Dependencies are inferred from the claim text.