METHOD FOR PRODUCING HIGH BULK DENSITY DETERGENT GRANULES

Title:

METHOD FOR PRODUCING HIGH BULK DENSITY DETERGENT GRANULES

Document Type and Number:

WIPO Patent Application WO/2011/001966

Kind Code:

A1

Abstract:

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.

Inventors:

KAWAMOTO KENICHIRO
IMAIZUMI YOSHINOBU
KAMEI TAKASHI

Application Number:

PCT/JP2010/061038

Publication Date:

January 06, 2011

Filing Date:

June 29, 2010

Export Citation:

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Assignee:

KAO CORP (JP)
KAWAMOTO KENICHIRO
IMAIZUMI YOSHINOBU
KAMEI TAKASHI

International Classes:

C11D11/00; C11D1/14; C11D3/10; C11D17/06

Domestic Patent References:

WO1998010052A1	1998-03-12
WO2009142135A1	2009-11-26

Foreign References:

JPH0873888A	1996-03-19
JP2006137925A	2006-06-01
JP2001003095A	2001-01-09
JP2004176055A	2004-06-24
JP2006137925A	2006-06-01
JPH10500716A	1998-01-20
JPH10506141A	1998-06-16
JPH10296064A	1998-11-10
JPH10296065A	1998-11-10
JPH05279013A	1993-10-26
JPH0789712A	1995-04-04
JPS60227895A	1985-11-13

Other References: