Abstract: A method of manufacturing a solid granule for use as or in a cleaning agent includes providing an anionic surfactant component having at least one anionic sulfonate surfactant and at least one anionic fatty alcohol-based sulfate surfactant; providing a granule-forming agent; mixing the anionic surfactant component and the granule-forming agent into a solid mixture; receiving the solid mixture in a granulation device, the granulation device having a first roller cutter and a second roller cutter, the first roller cutter includes a plurality of first blades and a plurality of first grooves, the second roller cutter having a plurality of second blades and a plurality of second grooves; cutting the solid mixture into a rough granule by cooperating the first blades with the second blades; and polishing the rough granule into the solid granule by friction rubbing between the first grooves and the second grooves.

Abstract: A solid granule or granular material used for cleaning agents includes an anionic surfactant component and a molding agent. The anionic surfactant component includes an anionic sulfonate surfactant and an anionic fatty alcohol-based sulfate surfactant. Based on the total amount of the cleaning granule being 100 wt %, the combined amount of the sulfonate surfactant and the sulfate surfactant is between 15.0 wt % and 100 wt %. The amount of molding agent is 5.0 wt % or less. The ratio of the sulfonate surfactant to the sulfate surfactant is 0.20 to 0.75, inclusive. A cohesion of the solid granule is between 1000 g/mm and 4000 g/mm.