Detergent compositions containing a surfactant system including a nonionic and an ionic surfactant

A method for increasing effectiveness of fabric cleaning comprising:

• placing the fabrics into an amount of water;
• forming a wash liquor by adding to the amount of water a wash composition comprising:
• a surfactant system, wherein the surfactant system comprises:
• a) a linear alkylbenzenesulfonate (LAS), and
• b) a fatty acid methyl ester ethoxylate (MEE);
• a solvent system;
• and
• one or more beneficial compositions;
• and
• agitating the fabrics within the wash liquor.

A unit (single) dose pack comprising a wash composition and a container composed of a water-soluble film, wherein the wash composition is enclosed in the container, and wherein the wash composition comprises:

• (1) a surfactant system, wherein the surfactant system comprises:
• a) an alkyl ether sulfate (AES) comprising sodium lauryl ether sulfate (SLES), wherein the alkyl ether sulfate is present in an amount of about 3% to about 35%, based on the total weight of the wash composition,
• b) a nonionic alcohol ethoxylate (AE) comprising a compound according to Formula (B):
• R2—(—O—C2H4—)m—OH (B)
• wherein R2 is a hydrocarbyl group having 8 to 16 carbon atoms and m is from 1 to 20, wherein the nonionic alcohol ethoxylate is present in an amount of about 3% to about 35%, based on the total weight of the wash composition,
• c) a linear alkylbenzenesulfonate (LAS) comprising an alkali metal salt of a C10-C16 alkyl benzene sulfonic acid, wherein the linear alkylbenzenesulfonate is present in an amount of about 1% to about 20%, based on the total weight of the wash composition, and
• d) a fatty acid methyl ester ethoxylate (MEE) that has an average unit number of repeating ethylene oxide (EO) units of from about 5 to 30 moles, and wherein the fatty acid methyl ester ethoxylate is derived from a fatty acid having from 10 to 22 carbons, wherein the fatty acid methyl ester ethoxylate is present in an amount of about 1% to about 40%, based on the total weight of the wash composition,
• wherein a weight ratio of the alkyl ether sulfate to the nonionic alcohol ethoxylate to the linear alkylbenzenesulfonate to the fatty acid methyl ester ethoxylate (AES:AE:LAS:MEE) is within a range of about 25:(12 to 20):(2 to 15):(2 to 15), and
• wherein the surfactant system is present in an amount of about 8% to about 75%, based on the total weight of the wash composition;
• (2) a solvent system, wherein the solvent system comprises one or more solvents selected from the group consisting of:
• polyols, ionic liquids, glycol ethers, ethylene oxide/propylene oxide (EO/PO) block copolymers, polyethylene glycol, and water, and wherein the solvent system is present in an amount of about 15% to about 92%, based on the total weight of the wash composition;
• and
• (3) one or more beneficial compositions, wherein the one or more beneficial compositions are selected from the group consisting of:
• an enzyme, a peroxy compound, a bleach activator, an anti-redeposition agent, a neutralizer, an optical brightener, a foam inhibitor, a chelator, a bittering agent, a dye transfer inhibitor, a soil release agent, a water softener, an electrolyte, a pH regulator, a graying inhibitor, an anti-crease component, a bleach agent, a colorant, a scent, a processing aid, an antimicrobial agent, and a preservative.