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US 2011/0257066 A1Published application
Detergent Composition
OwnerNigel Patrick Somerville Roberts, Hossam Hassan Tantawy +2inventors
InventorsNigel Patrick Somerville Roberts, Hossam Hassan Tantawy, James Robert Lickiss, Paul R. Mort, III
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Abstract
Preparation of solid free flowing detergent composition by spray drying a chemically simple slurry as well as compositions comprising chemically simple spray dried particles
Claims13
A solid free flowing particulate laundry detergent composition comprising:
- (i) from 30 wt % to 90 wt % of a spray dried base detergent particle population comprising:
- (a) from 10 wt % to 45 wt % of anionic detersive surfactant, wherein the anionic detersive surfactant comprises alkylbenzene sulphonate;
- (b) from 20 wt % to 84 wt % of a compound selected from:
- sulphate salt;
- alluminosilicate builder;
- phosphate builder;
- chloride salt;
- carbonate salt;
- citrate salt;
- bicarbonate salt;
- hydroxide salt;
- and mixtures thereof;
- (c) from 0 wt % to 20 wt % of polymeric material;
- and
- (d) from 0 wt % to 10 wt % water and other detergent ingredients,
- wherein the base detergent particle population comprises no more than two other detergent ingredients;
- and
- (ii) from 10 wt % to 70 wt % other detergent particle populations comprising:
- (a) from 1 wt % to 100 wt % of polymeric material;
- (b) from 0 wt % to less than 10 wt % of anionic detersive surfactant;
- (d) from 0 wt % to 4 wt % chelant;
- (e) from 0 wt % to 4 wt % brightener;
- (f) from 0 wt % to 4 wt % hueing agents;
- (g) from 0 wt % to 99 wt % bleach;
- (h) from 0 wt % to 40 wt % clay;
- (i) from 0 wt % to 30 wt % cationic surfactant;
- and
- (j) from 0 wt % to 99% of other ingredients,
- wherein at least 5 wt % of the particles have a bulk density of less than 400 g/l, wherein at least 15 wt % of the particles have a bulk density of greater than 900 g/l, and wherein the bulk density of the particulate composition is in the range of from 500 g/l to 800 g/l.
26 more elements
A process for preparing a solid free flowing particulate laundry detergent composition comprising the steps of:
- (i) preparing an aqueous common base slurry comprising on a dry basis:
- from 6 wt % to 45 wt % of alkylbenzene sulphonate, and a total amount of anionic surfactant of from 6 wt % to 45 wt %,
- from 20 wt % to 84 wt % of a compound selected from sodium sulphate, alluminosilicate builder, phosphate builder, from salts of chloride, carbonate, citrate, bicarbonate, and mixtures thereof,
- from 0 wt % to 10 wt % of polymeric material,
- from 0 wt % to 10 wt % of other ingredients,
- (ii) preparing an aqueous polymer base slurry comprising on a dry basis:
- from 1 wt % to 100 wt % of polymeric material,
- from 0 wt % to 6 wt % of alkylbenzene sulphonate, and a total amount of anionic surfactant of from 0 wt % to 35 wt %,
- from 0 wt % to 99% of other ingredients,
- (iii) obtaining a spray dried powder from the common base slurry and the aqueous polymer base slurry by spray drying them,
- wherein the weight ratio of the percentage of polymeric material in the aqueous common base slurry to the percentage of polymeric material in the aqueous polymer base slurry is below 0.8, and
- wherein the weight ratio of the percentage of alkylbenzene sulphonate in the aqueous polymer base slurry to the percentage of alkylbenzene sulphonate in the aqueous common base slurry is below 0.8.
9 more elements
Dependencies are inferred from the claim text.