BigPatents India

A detergent tablet of compacted particulate composition comprising organic surfactant, detergency builder and optionally other ingredients, wherein the table or a region thereof comprises; i) particles which comprise surfactant mixed with other material, and ii) other particles which accelerate tablet disintegration on contact with water, wherein there is a deposit of water-soluble material on the exterior of at least some of the surfactant-containing particles(i) and further wherein the particles (i) further comprise detergency builder and the particles (ii) comprise water-insoluble particles which are able to swell on contact with water, or, further wherein the water-soluble material is present as particles which have a smaller particle size than the particles(i). This deposit further accelerates tablet disintegration on contact with water.