| CPC C11D 10/045 (2013.01) [C11D 10/042 (2013.01); C11D 11/02 (2013.01); C11D 17/06 (2013.01); C11D 1/22 (2013.01); C11D 9/02 (2013.01); C11D 2111/12 (2024.01)] | 11 Claims |
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1. A process for preparing a solid free-flowing particulate laundry detergent composition, wherein the process comprises the steps of:
(a) forming a mixture by contacting:
(i) fatty acid;
(ii) liquid alkaline ingredient, and
(iii) non-ionic surfactant,
to obtain a mixture, wherein the mixture comprises:
(i) from about 4.0wt % to about 24.0wt % partially neutralized fatty acid component,
wherein the partially neutralized fatty acid component comprises:
(i) (i) from about 38.0wt % to about 84.0wt % fatty acid; and
(i) (ii) from about 16.0wt % to about 62.0wt % soap;
(ii) from about 75wt % to about 95wt % non-ionic surfactant; and
(iii) from about 0.15wt % to about 2.80wt % water,
wherein in step (a), the fatty acid is at a temperature at least 5° C. greater than the melting range of the fatty acid;
wherein the molar ratio of fatty acid to liquid alkaline ingredient contacted together in step (a) is above about 1:1;
(b) contacting the mixture obtained in step (a) to a detergent powder to form a solid free-flowing particulate laundry detergent composition,
wherein in step (b) the mixture is contacted to the detergent powder by spraying the mixture at a temperature of greater than about 50° C. onto the detergent powder,
wherein the detergent powder comprises a detergent ingredient,
wherein the solid free-flowing particulate laundry detergent composition comprises:
(i) from about 0.2wt % to about 5.0wt % non-ionic surfactant;
(ii) from about 0.0015wt % to about 0.1800wt % soap;
(iii) from about 0.0035wt % to about 0.2700wt % fatty acid;
(iv) from about 0.0003wt % to about 0.0370wt % water; and
(v) from about 5.0wt % to about 25wt % anionic detersive surfactant.
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