The invention provides a surfactant system, for use in household detergent compositions, which is a mixture of: (i) at least one sulfonate-functionalized alkyl polyglycoside of general formula (I):

R—O-(G).sub.n-(D)   (I) in which: p0 R represents a straight or branched chain monovalent hydrocarbyl radical having from 6 to 22 carbon atoms; G represents a residue of a reducing saccharide, connected to R—O by means of an ethereal O-glycosidic bond; n represents a number from 1 to 10; and D represents a —CH.sub.2CH(OH)CH.sub.2—SO.sub.3M group connected to an oxygen atom of G, where M is selected from H or a monovalent cation selected from Na, K, or NH.sub.4; and (ii) at least one ethoxylated fatty acid sorbitan ester of general formula (II):

Sorb-(EO.sub.n1R.sub.1)(EO.sub.n2R.sub.2)(EO.sub.n3R.sub.3)(EO.sub.n4R.sub.4)   (II) in which: Sorb represents a residue obtained by removing four hydroxyl H atoms from sorbitan; EO represents an ethyleneoxy group; R.sub.1, R.sub.2, R.sub.3 and R.sub.4are each independently selected from H or a —C(O)R.sub.5 group in which R.sub.5 is selected from straight or branched chain monovalent hydrocarbyl radicals having from 8 to 22 carbon atoms and mixtures thereof (provided that at least one of R.sub.1 to R.sub.4 is —C(O)R.sub.5); n.sub.1, n.sub.2, n.sub.3 and n.sub.4 each independently represent average values from 0 to 10; and the total [n.sub.1+n.sub.2+n.sub.3+n.sub.4] has an average value from 4 to 30; and in which the weight ratio of (i):(ii) in the mixture ranges from 5:1 to 1:5.

The invention provides a surfactant system, for use in household detergent compositions, which is a mixture of: (i) at least one sulfonate-functionalized alkyl polyglycoside of general formula (I):

R—O-(G).sub.n-(D)   (I) in which: p0 R represents a straight or branched chain monovalent hydrocarbyl radical having from 6 to 22 carbon atoms; G represents a residue of a reducing saccharide, connected to R—O by means of an ethereal O-glycosidic bond; n represents a number from 1 to 10; and D represents a —CH.sub.2CH(OH)CH.sub.2—SO.sub.3M group connected to an oxygen atom of G, where M is selected from H or a monovalent cation selected from Na, K, or NH.sub.4; and (ii) at least one ethoxylated fatty acid sorbitan ester of general formula (II):

Sorb-(EO.sub.n1R.sub.1)(EO.sub.n2R.sub.2)(EO.sub.n3R.sub.3)(EO.sub.n4R.sub.4)   (II) in which: Sorb represents a residue obtained by removing four hydroxyl H atoms from sorbitan; EO represents an ethyleneoxy group; R.sub.1, R.sub.2, R.sub.3 and R.sub.4are each independently selected from H or a —C(O)R.sub.5 group in which R.sub.5 is selected from straight or branched chain monovalent hydrocarbyl radicals having from 8 to 22 carbon atoms and mixtures thereof (provided that at least one of R.sub.1 to R.sub.4 is —C(O)R.sub.5); n.sub.1, n.sub.2, n.sub.3 and n.sub.4 each independently represent average values from 0 to 10; and the total [n.sub.1+n.sub.2+n.sub.3+n.sub.4] has an average value from 4 to 30; and in which the weight ratio of (i):(ii) in the mixture ranges from 5:1 to 1:5.

An anti-microbial laundry detergent composition comprising an anti-microbial agent that is a diphenyl ether, an organic acid and an anionic surfactant comprising a C.sub.6-C.sub.20 linear alkylbenzene sulfonate, wherein the composition has a neat pH of from 1.5 to 5.0.

An anti-microbial laundry detergent composition comprising an anti-microbial agent that is a diphenyl ether, an organic acid and an anionic surfactant comprising a C.sub.6-C.sub.20 linear alkylbenzene sulfonate, wherein the composition has a neat pH of from 1.5 to 5.0.

A process of removing microorganism from an article of clothing is provided in which the process comprises the steps of a) providing an article of clothing in a washing machine; and b) contacting said article of clothing during a wash sub-cycle of said washing machine with a liquid detergent composition comprising a surfactant system and an organic acid, wherein the composition has a neat pH of from 1.5 to 5.0.

A process of removing microorganism from an article of clothing is provided in which the process comprises the steps of a) providing an article of clothing in a washing machine; and b) contacting said article of clothing during a wash sub-cycle of said washing machine with a liquid detergent composition comprising a surfactant system and an organic acid, wherein the composition has a neat pH of from 1.5 to 5.0.

Stable and clear liquid laundry detergent compositions having a DADMAC Acrylic Acid co-polymer, a surfactant system including alcohol ethoxysulfate anionic surfactant (AES) and at least one of a linear alkyl benzene sulfonic acid anionic surfactant (LAS) and a non-ionic surfactant (NI), and an aqueous carrier. In one embodiment, the aqueous composition includes water in an amount of 30% to 80% by weight, a surfactant system in an amount of 8% to 35% by weight, and DADMAC Acrylic Acid co-polymer. The surfactant system may include: (1) at least about 40 wt % alcohol ethoxylsulfate (AES), and (2) a linear alkylbenzene sulfonate (LAS) and/or a non-ionic surfactant. The liquid compositions have a turbidity less than 50 NTUs.

Stable and clear liquid laundry detergent compositions having a DADMAC Acrylic Acid co-polymer, a surfactant system including alcohol ethoxysulfate anionic surfactant (AES) and at least one of a linear alkyl benzene sulfonic acid anionic surfactant (LAS) and a non-ionic surfactant (NI), and an aqueous carrier. In one embodiment, the aqueous composition includes water in an amount of 30% to 80% by weight, a surfactant system in an amount of 8% to 35% by weight, and DADMAC Acrylic Acid co-polymer. The surfactant system may include: (1) at least about 40 wt % alcohol ethoxylsulfate (AES), and (2) a linear alkylbenzene sulfonate (LAS) and/or a non-ionic surfactant. The liquid compositions have a turbidity less than 50 NTUs.

A detergent composition includes: A. a co-polymer of diallyldimethylammonium chloride and acrylic acid in an amount of from about 0.05 to about 1 weight percent actives; B. sodium and/or potassium chloride in an amount of greater than about 0.5 up to about 5 weight percent actives; C. a surfactant component in an amount of from about 8 to about 30 weight percent actives and comprising: (1) an alcohol ethoxy sulfate in an amount of from about 0 to about 60 weight percent actives; (2) an alkoxylated alcohol in an amount of from about 0 to about 90 weight percent actives; (3) a linear alkylbenzene sulfonate in an amount of from about 0 to about 90 weight percent actives; wherein at least two of said (1) alcohol ethoxy sulfate, said (2) alkoxylated alcohol, and said (3) linear alkylbenzene sulfonate are present in an amount of greater than zero; and D. water.

A detergent composition includes: A. a co-polymer of diallyldimethylammonium chloride and acrylic acid in an amount of from about 0.05 to about 1 weight percent actives; B. sodium and/or potassium chloride in an amount of greater than about 0.5 up to about 5 weight percent actives; C. a surfactant component in an amount of from about 8 to about 30 weight percent actives and comprising: (1) an alcohol ethoxy sulfate in an amount of from about 0 to about 60 weight percent actives; (2) an alkoxylated alcohol in an amount of from about 0 to about 90 weight percent actives; (3) a linear alkylbenzene sulfonate in an amount of from about 0 to about 90 weight percent actives; wherein at least two of said (1) alcohol ethoxy sulfate, said (2) alkoxylated alcohol, and said (3) linear alkylbenzene sulfonate are present in an amount of greater than zero; and D. water.