US 4,286,956 AGranted

Fluid, cold-stable, two-component washing compositions

AssigneeHenkel Kommanditgesellschaft auf Aktien

InventorWolfgang Bechstedt

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Abstract

A fluid, two-component washing agent consisting of two-components, A and B, of which component A is an aqueous dispersion of fatty acids and component B is an alkaline solution, wherein component A is a cold-stable aqueous dispersion consisting essentially of (a) from 25% to 35% by weight of a substantially unsaturated fatty acids, (b) from 10% to 16% by weight of a potassium soap of the fatty acids of (a), (c) from 15% to 25% by weight of an ethoxylated primary alcohol having 5 to 12 oxyethylene units, (d) from 4% to 10% by weight of a sodium C.sub.10-14 alkylbenzenesulfonate, (e) from 0.05% to 1% by weight of at least one optical brightener, (f) from 1% to 5% by weight of at least one hydrotropic compound, (g) from 2% to 10% by weight of at least one C.sub.1-3 alcohol, and (h) from 15% to 30% by weight of water, and wherein component B is an alkaline solution containing alkaline potassium compounds.

Claims14

Dependent claims

A method of washing soiled textiles consisting of the steps of adding a washing agent consisting of two components, A and B wherein component A is an aqueous dispersion of fatty acids consisting essentially of

(a) from 25% to 35% by weight of a C.sub.12-18 fatty acid having from 60% to 100% of the fatty acids of oleic acid,
(b) from 10% to 16% by weight of a potassium soap of said C.sub.12-18 fatty acid of (a),
(c) from 15% to 25% by weight of an ethoxylate of from 5 to 12 ethoxylate units onto a primary alcohol selected from the group consisting of linear C.sub.8-14 -alkanols and C.sub.8-14 -2-methylated-alkanols,
(d) from 4% to 10% by weight of a sodium C.sub.10-14 -alkylbenzenesulfonate,
(e) from 0.05% to 1% by weight of an alkali metal salt of substituted stilbenesulfonic acid optical brighteners,
(f) from 1% to 5% by weight of a hyrotrope selected from the group consisting of urea and alkali metal salts of alkylbenzenesulfonates having from 1 to 2 alkyl of groups with a total of 1 to 3 carbon atoms,
(g) from 2% to 10% by weight of alcohols selected from the group consisting of C.sub.1-3 alkanols and mixtures of C.sub.1-3 alkanols with up to 50% by weight of the mixture of C.sub.1-4 -alkoxy-C.sub.2-3 -alkanols or C.sub.1-4 -alkoxy-C.sub.2-3 -alkoxy-C.sub.2-3 -alkanols, and
(h) from 15% to 30% by weight of water;
and component B is an aqueous solution of alkalies consisting essentially of
(i) from 0.5% to 5% by weight of sodium tripolyphosphate,
(j) from 0 to 25% by weight of potassium tripolyphosphate,
(k) from 0 to 10% by weight of a sodium silicate of the composition Na.sub.2 --:SiO.sub.2 1:1 to 1:3.5,
(l) from 0.5% to 5% by weight of sodium ethylenediaminetetraacetate,
(m) from 10% to 25% by weight of potassium hydroxide, and
(n) the remainder up to 100% by weight of water, where the amount of water is sufficient to dissolve all the constituents at room temperature;
where the ratio of component A to component B in the combination for washing is from 1:1 to 1:4 and where the washing solution has a pH of from 9.5 to 14, to an aqueous wash liquor containing soiled textiles in such amounts that the total amount of all active washing ingredients including wash alkalies is from 5 gm to 30 gm per kg of dry textiles, agitating said textiles in said wash liquor, draining and rinsing said textiles and recovering clean textiles.

13 more elements

(a) from 25% to 35% by weight of a C.sub.12-18 fatty acid having from 60% to 100% of the fatty acids of oleic acid,
(b) from 10% to 16% by weight of a potassium soap of said C.sub.12-18 fatty acid of (a),
(c) from 15% to 25% by weight of an ethoxylate of from 5 to 12 ethoxylate units onto a primary alcohol selected from the group consisting of linear C.sub.8-14 -alkanols and C.sub.8-14 -2-methylated-alkanols,
(d) from 4% to 10% by weight of a sodium C.sub.10-14 -alkylbenzenesulfonate,
(e) from 0.05% to 1% by weight of an alkali metal salt of substituted stilbenesulfonic acid optical brighteners,
(f) from 1% to 5% by weight of a hydrotrope selected from the group consisting of urea and alkali metal salts of alkylbenzenesulfonates having from 1 to 2 alkyl groups with a total of 1 to 3 carbon atoms,
(g) from 2% to 10% by weight of alcohols selected from the group consisting of C.sub.1-3 alkanols and mixtures of C.sub.1-3 alkanols with up to 50% by weight of the mixture of C.sub.1-4 -alkoxy-C.sub.2-3 -alkanols or C.sub.1-4 -alkoxy-C.sub.2-3 -alkoxy-C.sub.2-3 -alkanols, and
(h) from 15% to 30% by weight of water;
and component B is an aqueous solution of alkalies consisting essentially of
(i) from 0.5% to 5% by weight of sodium tripolyphosphate,
(j) from 0 to 25% by weight of potassium tripolyphosphate,
(k) from 0 to 10% by weight of a sodium silicate of the composition Na.sub.2 O:SiO.sub.2 1:1 to 1:3.5,
(l) from 0.5% to 5% by weight of sodium ethylenediaminetetraacetate,
(m) from 10% to 25% by weight of potassium hydroxide, and
(n) the remainder up to 100% by weight of water, where the amount of water is sufficient to dissolve all the constituents at room temperature;
where the ratio of component A to component B in the combination from washing is from 1:1 to 1:4, and where the washing solution has a pH of from 9.5 to 14, to an aqueous wash liquor in the absence of soiled textiles in such amounts that the total amount of all active washing ingredients including wash alkalies in the wash liquor after addition of said soiled textiles is from 5 gm to 30 gm per kg of dry textiles, adding said soiled textiles agitating said textiles in said wash liquor, draining and rinsing said textiles and recovering clean textiles.

13 more elements

Dependencies are inferred from the claim text.