| 摘要 |
<p>Provided is a method for producing a detergent particle group, which comprises: a step (A) for preparing particles (A) containing 5 to 40 mass% of an anionic surfactant by spray-drying a slurry containing the anionic surfactant; a step (B) for preparing particles (B) by granulating a powder starting material for a detergent using a vessel rotating-type mixer, wherein the powder starting material for a detergent is a water-soluble solid alkali inorganic substance and/or a water-soluble inorganic salt, the amount of water-soluble solid alkali inorganic substance and water-soluble inorganic salt contained in the particles (B) is 30 to 88 mass%, the vessel rotating-type mixer is a drum mixer or a pan mixer, and the anionic surfactant and/or a precursor thereof are added to the vessel rotating-type mixer using a multi-fluid nozzle to prepare the particles (B); and a step (C) for mixing the particles (A) and the particles (B). The effect of obtaining, at a good yield, a detergent particle group having an intermediate to low bulk density wherein the percentage of spray-dried particles used has been reduced is realized by the method for producing a detergent particle group of the present invention.</p> |
