METHOD FOR PRODUCING HIGH BULK DENSITY DETERGENT GRANULES

摘要

Disclosed is a method for producing detergent granules having a bulk density of not less than 650 g/L, which comprises the following steps 1-3. Step 1: a step wherein starting material powders having an oil absorption capacity of not less than 0.4 mL/g are mixed. Step 2: a step wherein water or an aqueous binder solution is added to the powder mixture obtained in step 1 and base granules are prepared using a low-shear granulator. Step 3: a step wherein the base granules obtained in step 2 are mixed with a surfactant composition that contains an anionic surfactant and water. By employing the method, high bulk density detergent granules which generally have extremely low skin irritation, good biodegradability and sharp particle size distribution can be produced with high yield. By having a sharp particle size distribution, a detergent is able to have not only improved appearance but also good fluidity and excellent manufacturability, and can be produced efficiently.