Process for the preparation of a storage-stable liquid detergent composition
AssigneeHenkel Kommanditgesellschaft aug Aktien
InventorsPaul Schulz, Karl Schwadtke, Eduard Smulders
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Abstract
The invention provides a substantially anhydrous gas-free liquid detergent based on non-ionic surfactants containing a liquid surfactant component comprising adducts of from 2 to 8 moles ethylene oxide with 1 mole C.sub.10-20 - fatty alcohol, anionic surfactant, and low molecular weight polyethylene glycol. The liquid surfactant component makes up at least 20% by weight of the detergent as a whole; the ratio of fatty alcohol ethoxylate to anionic surfactant is from 1:1 to 2:1; and the detergent has a density of from 1.4 to 1.8. Typically, the detergent includes a particulate solids component which is incorporated with the liquid components as separate component fractions of differing particle size.
Claims17
A process for producing a detergent having a liquid surfactant component comprising
- (a) a non-ionic surfactant selected from the group consisting of adducts of a C.sub.10 -C.sub.20 -fatty alcohol with from 2 to 8 moles ethylene oxide per mole fatty alcohol;
- (b) an anionic surfactant selected from the group consisting of surface active soaps, sulfates, sulfonates, and mixtures thereof;
- and
- (c) polyethylene glycol having a molecular weight of from about 200 to 600;
- and a particulate solids component comprising
- (d) a first finely divided fraction having an average particle size of from about 0.01 to 30 microns;
- and
- (e) a second more coarsely divided fraction having an average particle size of from about 200 to 2000 microns;
- wherein the particulate solids component includes at least one member selected from the group consisting of a builder, a redeposition inhibitor, an optical brightener, a detergency-promoting enzyme, a bleach, a bleach activator, and a foam inhibitor;
- said process comprising
- (f) admixing the liquid components of the detergent including the liquid surfactant component with the solid components of the detergent which do not substantially chemically interact with each other or with the liquid components to form a suspension;
- (g) wet grinding the suspension to reduce the particle size of the solid components to an average particle size of 30 microns or less to provide a ground suspension;
- (h) admixing the ground suspension with the second coarsely divided solids fraction;
- and
- (i) degassing the mixture.
Dependencies are inferred from the claim text.