C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 11/00 (2006.01) C11D 11/02 (2006.01) C11D 17/06 (2006.01)
Patent
CA 2108167
2108167 9218603 PCTABS00017 The present invention relates to a process for making a free flowing granular detergent comprising: mixing an effective amount of an aqueous surfactant paste having a detergency activity of at least 40 % and an effective amount of a dry detergency powder, said surfactant paste active and builder or powder having a ratio of 0.05:1 to 19:1 to form a mix; rapidly forming a uniform mixture from said mix at a temperature of from about 0 ·C to about 80 ·C; granulating said mixture into discrete detergent granules using a high speed mixing at a tip speed of about 5-50 m/sec; and wherein said surfactant paste is comprised of at least one anionic surfactant, and wherein said mixing and granulating are conducted simultaneously, or immediately sequentially. The nil-surfactant components of the finished granular detergent other than the granulated active paste, comprise a (relatively small) part of the total amount of builder, another part of the builder having been used for granulation. The nil active components can be spray-dried to form a powder having good color, frangibility, dissolution properties and desirable density and size characteristics for direct dry mixing with other ingredients of the finished granular detergent.
Goovaerts Lucas
Vega Jose L.
Kirby Eades Gale Baker
The Procter & Gamble Company
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