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Henkel Awarded Patent

November 14, 2005

Patent No. US 6,534,471 B1: Henkel, Düsseldorf, Germany, patented colored detergent particles that are created by forming a slurry with at least one inorganic powdering agent, at least one dye and an optional bleach activator; spray-drying the slurry to form colored particles of powdering agent and then applying them to detergent particles.
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