METHOD FOR PRODUCING DETERGENT PARTICLE GROUP

WIPO Patent Application WO/2012/067227

A1

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.

YAMAGUCHI MASAHIRO
NAKAYAMA TAKASHI
WARITA HIROAKI
IMAIZUMI YOSHINOBU

PCT/JP2011/076653

May 24, 2012

November 18, 2011

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KAO CORP (JP)
YAMAGUCHI MASAHIRO
NAKAYAMA TAKASHI
WARITA HIROAKI
IMAIZUMI YOSHINOBU

C11D11/02; C11D1/14; C11D1/22; C11D1/28; C11D1/29; C11D17/06

WO2009142135A1

2009-11-26

JP2003105397A	2003-04-09
JP2008063419A	2008-03-21
JP2004176055A	2004-06-24
JP2005344109A	2005-12-15

HOSODA, YOSHINORI (JP)
Yoshinori Hosoda (JP)

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