Composition and process for washing and bleaching
AssigneeInterox
InventorsWilliam R. Logan, Pierre Sarot, Edmond Bouillet
Life of this patent
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Abstract
Particulate washing and bleaching compositions containing a peroxy compound and an alkali carbonate have their tendency to cake during storage reduced by incorporating within the compositions an alkaline aryl sulphonate, such as sodium methyl naphthalene sulphonate, and a water-insoluble inorganic compound, such as magnesium trisilicate. The compositions can be used for washing and bleaching textiles and fibers and cleaning hard surfaces.
Claims15
A particulate composition for washing and bleaching, which is resistant to caking, comprising:
- (a) active compounds consisting essentially of an alkali metal or ammonium carbonate and at least one peroxy compound selected from the group consisting of alkali metal or ammonium percarbonates, persulphates, and perborates;
- and
- (b) anticaking agents consisting essentially of
- (1) at least one alkali metal or ammonium aryl sulphonate, and
- (2) at least one water insoluble inorganic compound selected from the group consisting of compounds of magnesium and compounds derived from silica or alumina,
- said anticaking agent being present in an amount between 0.01 and 40% by weight, based on the total amount of said active compounds.
A particulate composition for washing and bleaching, which is resistant to caking, consisting essentially of:
- (a) at least 30% by weight of active compounds consisting essentially of an alkali metal or ammonium carbonate and at least one peroxy compound selected from the group consisting of alkali metal or ammonium percarbonates, persulphates and perborates;
- (b) 0.01 to 40% by weight, based on the total amount of said active compounds, of anticaking agents consisting essentially of at least one alkali metal or ammonium aryl sulphonate and at least one water insoluble inorganic compound selected from the group consisting of compounds of magnesium and compounds derived from silica or alumina;
- (c) 0.01 to 70% by weight of fillers;
- and
- (d) not more than 20% by weight of other constituents useful for washing and bleaching purposes.
A particulate composition for washing and bleaching, which is resistant to caking, comprising:
- a base powder containing substantially, by weight, 30% sodium percarbonate, 60% sodium carbonate and 10% sodium sulphate;
- magnesium trisilicate in a concentration of approximately 5%, by weight, of said composition;
- and sodium methyl naphthalene sulphonate in a concentration of approximately 0.25%, by weight, of said composition.
A particulate composition for washing and bleaching, which is resistant to caking, comprising:
- a base powder containing, substantially, by weight, 30% sodium percarbonate, 40% sodium carbonate, 10% sodium sulphate, and 20% sodium chloride;
- magnesium trisilicate in a concentration of approximately 5%, by weight, of said composition;
- and sodium methyl naphthalene sulphonate in a concentration of approximately 0.25%, by weight, of said composition.
A particulate composition for washing and bleaching, which is resistant to caking, comprising:
- a base powder containing substantially, by weight, 45% tetrahydrated sodium perborate, 45% sodium carbonate and 10% sodium sulphate;
- magnesium trisilicate in a concentration of approximately 5%, by weight, of said composition;
- and sodium methyl naphthalene sulphonate in a concentration of approximately 0.25%, by weight, of said composition.
Dependencies are inferred from the claim text.