Clear, cold-stable liquid washing agent concentrates

Claim 1

A clear, cold-stable liquid washing agent concentrate consisting essentially of: (A) from 25% to 30% by weight of a potassium soap of C 12-18 -fatty acids having from 60% to 100% of the fatty acid of acids selected from the group consisting of C 12-14 -alkanoic acids, oleic acid, and mixture thereof, wherein the amount of saturated C 16-18 -fatty acids is from 1% to 15% by weight of the fatty acids and the amount of stearic acid does not exceed 3% by weight of the fatty acids, (B) from 5% to 9% by weight of an ethoxylate of from 6 to 8 ethoxylate units onto a primary alcohol selected from the group consisting of linear C 9-12 -alkanols and C 9-12 -2-methylated alkanols, (C) from 6% to 8% by weight of a sodium C 10-14 -alkyl-benzenesulfonate, (D) from 0.1% to 0.7% by weight of an alkali metal salt of substituted stilbenesulfonic acid optical brighteners, (E) from 0.7% to 4% by weight of potassium hydroxide, (F) from 0 to 6% by weight of triethanolamine, (G) from 12% to 18% by weight of alcohols selected from the group consisting of C 1-3 -alkanols and mixtures of C 1-3 -alkanols with up to 35% by weight of the mixture of hydrotropes selected from the group consisting of C 1-4 -alkoxy-C 2-3 -alkanols, C 1-4 -alkoxy-C 2-3 -alkoxy-C 2-3 -alkanols and alkali metal salts of alkylbenzenesulfonates having from 1 to 2 alkyl groups with a total of 1 to 3 carbon atoms, and (H) the remainder up to 100% of water, where the amount of water is from 30% to 50% by weight and the concentration of the total compounds A to E does not exceed 50% by weight of the concentrate.

Claim 13

A method of washing soiled textiles consisting of the steps of adding a clear, cold-stable liquid washing agent concentrate consisting essentially of: (A) from 22.5% to 35% by weight of a potassium soap of C 12-18 -fatty acids having from 60% to 100% of the fatty acid of acids selected from the group consisting of C 12-14 -alkanoic acids, oleic acid, and mixtures thereof, (B) from 5% to 9% by weight of an ethoxylate of from 5 to 10 ethoxylate units onto a primary alcohol selected from the group consisting of linear C 8-14 -alkanols and C 8-14 -2-methylated alkanols, (C) from 4% to 10% by weight of a sodium C 10-14 -alkylbenzenesulfonate, (D) from 0.05% to 1% by weight of an alkali metal salt of substituted stilbenesulfonic acid optical brighteners, (E) from 0.1% to 5% by weight of potassium hydroxide, (F) from 0 to 6% by weight of triethaolamine, (G) from 8% to 20% by weight of alcohols selected from the group consisting of C 1-3 -alkanols and mixtures of C 1-3 -alkanols with up to 35% by weight of the mixture of hydrotropes selected from the group consisting of C 1-4 -alkoxy-C 2-3 -alkanols, C 1-4 -alkoxy-C 2-3 -alkoxy-C 2-3 -alkanols and alkali metal salts of alkylbenzenesulfonates having from 1 to 2 alkyl groups with a total of 1 to 3 carbon atoms, and (H) the remainder up to 100% by water, where the amount of water is at least 30% by weight and the concentration of the total of components A to E does not exceed 50% by weight of the concentrate, to softened water containing soiled textiles in an automatic washer in such amounts that from 3 to 10 gm of said concentrate are present per kilo-gram of dry textiles, agitating said textiles in said concentrate-containing softened water, draining, rinsing and mangling said textiles and recovering clean textiles.

Claim 14

A method of washing soiled textiles consisting of the steps of adding a clear, cold-stable liquid washing agent concentrate consisting essentially of: (A) from 22.5% to 35% by weight of a potassium soap of C 12-18 -fatty acids having from 60% to 100% of the fatty acid of acids selected from the group consisting of C 12-14 -alkanoic acids, oleic acid, and mixtures thereof, (B) from 5% to 9% by weight of an ethoxylate of from 5 to 10 ethoxylate units onto a primary alcohol selected from the group consisting of linear C 8-14 -alkanols and C 8-14 -2-methylated alkanols, (C) from 4% to 10% by weight of a sodium C 10-14 -alkylbenzenesulfonate, (D) from 0.05% to 1% by weight of an alkali metal salt of substituted stilbenesulfonic acid optical brighteners, (E) from 0.1% to 5% by weight of potassium hydroxide, (F) from 0 to 6% by weight of triethaolamine, (G) from 8% to 20% by weight of alcohols selected from the group consisting of C 1-3 -alkanols and mixtures of C 1-3 -alkanols with up to 35% by weight of the mixture of hydrotropes selected from the group consisting of C 1-4 -alkoxy-C 2-3 -alkanols, C 1-4 -alkoxy-C 2-3 -alkoxy-C 2-3 -alkanols and alkali metal salts of alkylbenzenesulfonates having from 1 to 2 alkyl groups with a total of 1 to 3 carbon atoms, and (H) the remainder up to 100% by water, where the amount of water is at least 30% by weight and the concentration of the total of components A to E does not exceed 50% by weight of the concentrate, to softened water containing soiled textiles in an automatic washer in such amounts that from 3 to 10 gm of said concentrate are present per kilo-gram of dry textiles, agitating said textiles in said concentrate-containing softened water, draining, rinsing and mangling said textiles and recovering clean textiles.