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AssigneeUnilever Home & Personal Care USA, Division of Conopco, Inc.
InventorsAnja Leonarda M Van Asperen, Atze Jan Van der Goot, Rene Lammers, Seeng Djiang Liem, Robert Ernst Niemantsverdriet, Mark Van der Veen, Patrick Van der Waal
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A detergent tablet for fabric washing is compacted from a particulate composition containing detergent active compound, detergency builder, a bleach system comprising coated sodium percarbonate and at least one bleach activator, and optionally other detergent ingredients, where the tablet comprises a plurality of discrete regions, and wherein the bleach activator and the coated sodium percarbonate are concentrated in respective different regions of the tablet. This separation of activator and percarbonate increases the stability of the bleach activator.
A detergent tablet of compressed particulate composition comprising a detergent-active compound, a detergency builder, a bleach system comprising sodium percarbonate in the form of particles having a coating of water-soluble material and at least one bleach activator, and optionally other detergent ingredients, where the tablet comprises a plurality of discrete regions, each of which is at least 10% of the total weight of the tablet, and wherein one or more regions contain at least 80% of the sodium percarbonate present in the tablet and the bleach activator which is present in an amount of not more than 20% in the tablet while one or more other regions of the tablet contain at a least 80% of the bleach activator in the tablet and the percarbonate which is present in an amount of not more than 20% in the tablet.
A detergent tablet of compressed particulate composition comprising a detergent-active compound, a detergency builder, a bleach system comprising sodium percarbonate in the form of particles having a coating of water-soluble material, at least one enzyme, and optionally other detergent ingredients, where the tablet comprises a plurality of discrete regions, each of which is at least 10% of the total weight of the tablet, and wherein one or more regions contain at least 80% of the sodium percarbonate present in the tablet and the enzyme which is present in an amount of not more than 20% in the tablet while one or more other regions of the tablet contain at least 80% of the enzyme and the percarbonate which is present in an amount of not more than 20% in the tablet.
Dependencies are inferred from the claim text.