To provide a method for producing surfactant-containing granules, with no occurrence of surfactant-containing granules' sticking on a granulator such as a crusher, and also capable of suppressing such sticking on surfactant-containing granules-conveying pipings.
The method for producing the surfactant-containing granules comprises the following practice: A kneaded product containing 15-35 mass% of a surfactant and 1-20 mass% of sodium sulfate is prepared, wherein the relationship between the loss tangent tanδ of the kneaded product and the pressure-cracking tensile strength K of the surfactant-containing granules meets the requirements(A) or (B) described below: (A) when tanδ is 0.075-0.200, K is 0-200 kPa; (B) when tanδ is less than 0.075 or greater than 0.200, K is 0-30 kPa.
COPYRIGHT: (C)2008,JPO&INPIT
MATSUI KOTARO
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama