To provide a method for producing a high-bulk density detergent composition excellent in detergency and having a small average particle diameter.
This method for producing a high-bulk density detergent composition having ≥650 g/L bulk density comprises a step (A) for mixing a liquid acid precursor of an anionic surfactant with a water-soluble alkali inorganic substance in an amount required to neutralize the liquid acid precursor of more in the substantial absence of an alkali metal aluminosilicate and neutralizing the liquid acid precursor and a step (B) for adding an inorganic powder and mixing the inorganic powder with the neutralized mixture after the point of time when starting the particle coarsening of the neutralized mixture during the neutralization in the step (A) and the method producing the high-bulk density detergent composition having ≥650 g/L bulk density comprises (a) a step for mixing the liquid acid precursor of the anionic surfactant with the water-soluble alkali inorganic substance in an amount required to neutralize the liquid acid precursor or more in the substantial absence of the alkali metal aluminosilicate and neutralizing the liquid acid precursor and (b) a step for adding the alkali metal aluminosilicate to the neutralized mixture obtained in the step (a) and mixing the alkali metal aluminosilicate with the neutralized mixture.
NITTA SHUICHI
YAMASHITA HIROYUKI
SAKATA YASUSHI
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