초록

Fabric conditioning compositions suitable for effectively imparting fabric conditioning agents to fabrics during the home laundering operation via friable microcapsules containing such agents. A method for delivery of the agents is also provided.

대표청구항 ▼

A granular laundry presoaking/washing composition comprising: (A) from about 3% to 20% by weight of a granular fabric treatment mixture, the granules within said mixture comprising (i) water-insoluble, friable microcapsules varying in size from about 5 to 500 microns, each microcapsule consisting es

A granular laundry presoaking/washing composition comprising: (A) from about 3% to 20% by weight of a granular fabric treatment mixture, the granules within said mixture comprising (i) water-insoluble, friable microcapsules varying in size from about 5 to 500 microns, each microcapsule consisting essentially of (a) a liquid core containing fabric conditioning agent; and (b) a solid thin polymeric shell completely surrounding said core; said shell having an average thickness ranging between about 0.1 and 50 microns; and (ii) a substantially water-insoluble, fabric substantive capsule transfer agent having a melting point between about 40°C. and 150°C.; said capsule transfer agent surrounding each microcapsule; the weight ratio of microcapsules to capsule transfer agent within each granule of the fabric treatment mixture between about 0.002:1 and 2000:1; and (B) from about 5% to 90% by weight of a presoaking/washing adjuvant selected from the group consisting of water-soluble detersive surfactants, detergency builders and mixtures of water-soluble detersive surfactants and detergency builders. A process for conditioning fabrics comprising the steps of: (A) contacting said fabrics in an aqueous bath with an effective amount of a composition comprising: 1. from about 3% to 20% by weight of a granular fabric treatment mixture, the granules within said mixture comprising (i) water-insoluble; friable microcapsules varying in size from about 5 to 500 microns, each microcapsule consisting essentially of (a) a liquid core containing fabric conditioning agent; and (b) a solid thin polymeric shell completely surrounding said core; said shell having an average thickness ranging between about 0.1 and 50 microns; and (ii) a substantially water-insoluble, fabric substantive capsule transfer agent having a melting point between about 40°C. and 150°C.; said capsule transfer agent surrounding each microcapsule; the weight ratio of microcapsules to capsule transfer agent within each granule of the fabric treatment mixture ranging between about 0.002:1 and 2000:1; and 2. from about 5% to 90% by weight of a presoaking/washing adjuvant selected from the group consisting of water-soluble detersive surfactants, detergency builders and mixtures of water-soluble detersive surfactants and detergency builders; and (B) manipulating said fabrics in an automatic clothes dryer at a temperature of from about 38°C. to about 100°C.