| CPC C11D 3/505 (2013.01) [C11D 1/83 (2013.01); C11D 3/2086 (2013.01); C11D 3/226 (2013.01); C11D 11/02 (2013.01); C11D 17/06 (2013.01); C11D 1/22 (2013.01); C11D 1/29 (2013.01); C11D 2111/12 (2024.01)] | 15 Claims |
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1. A process for making a particulate laundry detergent composition, wherein the process comprises the steps of:
(a) contacting water, starch, acid and perfume to form a concentrated acidic mixture, wherein the concentrated acidic mixture comprises:
(i) from about 20 wt % to about 60 wt % starch;
(ii) from about 10 wt % to about 50 wt % perfume;
(ii) from about 2 wt % to about 20 wt % acid;
(iv) from about 10 wt % to less than about 45 wt % water; and
wherein the concentrated acidic mixture has a pH of less than about 4.5;
(b) subjecting the concentrated acidic mixture to a perfume emulsification step to emulsify the perfume to form an emulsified perfume mixture in fluid form; and
(c) spraying the emulsified perfume mixture in fluid form onto base detergent particles so that the emulsified perfume mixture at least partially coats the base detergent particles to form the particulate laundry detergent composition, wherein the base detergent particles comprise from about 4 wt % to about 60 wt % detersive surfactant.
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