Liquid laundry detergent composition

1. A liquid laundry detergent composition suitable for formulation into a water-soluble unit dose article, wherein the liquid laundry detergent composition comprises;

a. an anionic surfactant selected from linear alkylbenzene sulphonate, alkoxylated alkyl sulphate, or a mixture thereof;

b. a non-ionic surfactant selected from a fatty alcohol alkoxylate, an oxo-synthesised fatty alcohol alkoxylate, or a mixture thereof;

c. 1,2-propanediol;

d. dipropylene glycol;

e. glycerol;

wherein the weight ratio of the anionic surfactant to the non-ionic surfactant is from about 5:1 to about 1:1, and

wherein the total weight percentage of the 1,2-propanediol and dipropylene glycol is between about 5% and about 25% by weight of the liquid laundry detergent composition,

wherein the liquid laundry detergent composition comprises between about 22% and about 32% by weight of the liquid laundry detergent composition of the anionic surfactant, and

wherein the weight ratio of 1,2-propanediol to dipropylene glycol is between about 1:1 and about 10:1,

wherein the liquid laundry detergent composition comprises between about 0.5% and about 20% by weight of the liquid laundry detergent composition of water.

2. The liquid laundry detergent composition according to claim 1 wherein the anionic surfactant comprises linear alkylbenzene sulphonate and ethoxylated alkyl sulphate in a weight ratio of linear alkylbenzene sulphonate to ethoxylated alkyl sulphate of between about 3:1 and about 1:1.

3. The liquid laundry detergent composition according to claim 1 , wherein the liquid laundry detergent comprises a fatty acid or salt thereof.

4. The liquid laundry detergent composition according to claim 3 wherein the liquid laundry detergent composition comprises between about 3% and about 10%, by weight of the liquid laundry detergent composition of a fatty acid or salt thereof.

5. The liquid laundry detergent composition according to claim 1 wherein the total weight percentage by weight of the liquid laundry detergent composition of 1,2-propanediol and dipropylene glycol is between about 10% and about 20%.

6. The liquid laundry detergent composition according to claim 5 wherein the glycerol is present between about 2% and about 10%, by weight of the liquid laundry detergent composition.

7. The liquid laundry detergent composition according to claim 1 wherein the liquid laundry detergent composition comprises monoethanolamine.

8. The liquid laundry detergent composition according to claim 7 , wherein the liquid laundry detergent composition comprises between about 5% and about 15%, by weight of the liquid laundry detergent composition of monoethanolamine.

9. The liquid laundry detergent composition according to claim 1 wherein the liquid laundry detergent composition has a pH between about 6 and about 10.

10. The liquid laundry detergent composition according to claim 1 wherein the liquid laundry detergent composition comprises hydrogenated castor oil.

11. The liquid laundry detergent composition according to claim 1 comprising an adjunct ingredient selected from hueing dyes, polymers, surfactants, builders, dye transfer inhibiting agents, dispersants, enzymes, enzyme stabilizers, catalytic materials, bleach activators, polymeric dispersing agents, anti-redeposition agents, suds suppressors, aesthetic dyes, opacifiers, perfumes, perfume delivery systems, structurants, hydrotropes, processing aids, pigments and mixtures thereof.

12. A water-soluble unit dose article comprising a water-soluble film and a liquid laundry detergent composition according to claim 1 .

13. The water-soluble unit dose article according to claim 12 wherein the water-soluble film comprises a blend of at least two different polyvinylalcohol homopolymers, at least two different polyvinylalcohol copolymers, at least one polyvinylalcohol homopolymer and at least one polyvinylalcohol copolymer or a combination thereof.

14. A method of making a water-soluble unit dose article according to claim 12 comprising the steps of moulding a first water-soluble film in a mould to form an open cavity, filling the cavity with the liquid laundry detergent composition, laying a second film over the first film to close the cavity, and sealing the first and second films together to produce the water-soluble unit dose article.

15. A process of washing fabrics comprising the steps of contacting the liquid laundry detergent composition or unit dose article according to claim 1 or claim 12 with water such that the liquid laundry detergent composition is diluted in water by at least 400 fold to form a wash liquor, and contacting fabrics with said wash liquor.