Ethoxylated glycerol ester-containing detergent for machine dishwashing

A method of cleaning dishes in a dishwashing machine, the method comprising treating contaminated dishes in the dishwashing machine with an aqueous alkaline solution comprising a detergent composition, wherein the detergent composition comprises

• Z1) a mixture of ethoxylated glycerol esters of formula (I),
• prepared from ethylene oxide and one or more triglycerides of formula (II)
• in the presence of a calcium catalyst (C), wherein
• R1, R2 and R3 in formulae (I) and (II) are each independently selected from the group consisting of saturated linear C7-C24 alkyl chains, saturated branched C7-C24 alkyl chains, unsaturated linear C7-C24 alkyl chains, and unsaturated branched C7-C24 alkyl chains;
• m, n and o in formula (I) are each independently an integer number from 1 to 200, with the proviso that the number-average of the sum of m+n+o is greater than 5;
• the mixture of ethoxylated glycerol esters of formula (I) has a hydroxyl value of less than 6 mg KOH/g;
• a ratio of CH2OH groups to alkyl-CH3 groups in the mixture of ethoxylated glycerol esters Z1) is less than 0.12;
• and
• the calcium catalyst (C) is a catalyst obtained by a reaction comprising
• (A) calcium hydroxide and
• (B) a carboxylic acid comprising 3 to 40 carbon atoms,
• wherein the calcium hydroxide (A) and the carboxylic acid (B) are present in a molar ratio (A):(B) of from 1:1 to 1:5.

A method of cleaning dishes in a dishwashing machine, the method comprising treating contaminated dishes in the dishwashing machine with an aqueous composition comprising a detergent composition, wherein the detergent composition comprises

• Z1) a mixture of ethoxylated glycerol esters of formula (I),
• prepared from ethylene oxide and one or more triglycerides of formula (II)
• in the presence of a calcium catalyst (C), wherein
• R1, R2 and R3 in formulae (I) and (II) are each independently selected from the group consisting of saturated linear C7-C24 alkyl chains, saturated branched C7-C24 alkyl chains, unsaturated linear C7-C24 alkyl chains, and unsaturated branched C7-C24 alkyl chains;
• m, n and o in formula (I) are each independently an integer number from 1 to 200, with the proviso that the number-average of the sum of m+n+o is greater than 5;
• the mixture of ethoxylated glycerol esters of formula (I) has a hydroxyl value of less than 6 mg KOH/g;
• a ratio of CH2OH groups to alkyl-CH3 groups in the mixture of ethoxylated glycerol esters Z1) is less than 0.12;
• and
• the calcium catalyst (C) is a catalyst obtained by a reaction comprising
• (A) calcium hydroxide and
• (B) a carboxylic acid comprising 3 to 40 carbon atoms,
• wherein the calcium hydroxide (A) and the carboxylic acid (B) are present in a molar ratio (A):(B) of from 1:1 to 1:5, and
• wherein the aqueous composition has a pH of from 5.5-8.5.