LAUNDRY DETERGENT COMPOSITION

Abstract

A concentrated laundry detergent composition premix comprising 10 to 70% wt. surfactant, a fatty acid, and methyl glycine diacetic acid (MGDA), from 3 to 15% wt. hydrotrope, and having a pH of from 6 to 8.. A method for forming a laundry detergent composition by diluting such a premix in water such that the final concentration of fatty acid anti-foam is from 0.5 to 1.5% wt. A container comprising a premix.

Claims

1. A concentrated laundry detergent composition premix comprising 10 to 70% wt. surfactant, a fatty acid, and methyl glycine diacetic acid (MGDA), from 3 to 15% wt. hydrotrope, and having a pH of from 6 to 8.

2. Composition according to claim 1 wherein the MGDA is present at from 0.1 to 3% wt. of the concentrated laundry detergent composition.

3. Composition according to claim 1 wherein the fatty acid is present at from 1 to 4% wt. of the concentrated laundry detergent composition.

4. Composition according to claim 1 wherein the composition comprises rheology modifier.

5. Composition according to claim 1 having a viscosity measure at 21 s.sup.-1 and at 25° C. of from 100 to 700 mPa.s.

6. Composition according to claim 1 wherein the composition comprises from 0 to 10% wt. the total surfactant, alkyl ether sulphate.

7. A method for forming a laundry detergent composition by diluting a premix as claimed in claim 1 in water such that the final concentration of fatty acid is from 0.5 to 1.5% wt.

8. A method for forming a laundry detergent composition by diluting a premix as claimed in claim 1, in water at from 0.8 to 1 to 10 to 1 (water to premix).

9. A container comprising a premix as claimed in claim 1.

10. A container according to claim 9 wherein the container displaces a volume appropriate to permit dilution of said premix to form a liquid detergent composition at an appropriate dilution.

Description

EXAMPLES

[0200] The following is a formulation according to the invention and are manufactured using standard protocols. Shown is the formulation before and after dilution with water by the consumer.

TABLE-US-00001 Pre-dilution Post-dilution Ingredient wt% wt% Demin Water 26.3435 13.17175 Consumer Water 0 50 Optical Brightener 0.21 0.105 MPG 12.5 6.25 Nonionic Surfactant 26.292 13.146 Glycerol 0.5 0.25 TEA 2.5 1.25 NaOH 2.07 1.035 LAS Acid 17.528 8.764 Fatty Acid 1.62 0.81 Sorbeth ethoxylated ester 4.5 2.25 MGDA 0.5 0.25 Polyamine 2.49 1.245 SRP 0.3 0.15 Preservative 0.0095 0.00475 Preservative 0.045 0.0225 Fragrance 2.592 1.296 100 100 pH 7.0

[0201] The following shows the results from a three day stability assessment of the pre-diluted product.

TABLE-US-00002 Ingredient (0.5 wt% in conc) SOU2-UK non-bio Concentrated liquid FA = 1.62 wt% pH ~6.7 Diluted in Prenton water [26FH 2:1] / 5° C. Diluted in Prenton water [26FH 2:1] / 25° C. Diluted in mocked up water [40FH 4:1] / 5° C. Diluted in mocked up water [40FH 4:1] / 25° C. Control - none Clear Clear Clear Hazy Clear Trilon M Max (MGDA) Clear Clear Clear Clear Clear Dequest 2066 Hazy Clear Clear Hazy Clear [26FH 2:1] means 26° French Hardness and with 2:1 Ca to Mg.

[0202] The premix containing Dequest 2066 is hazy and forms an unstable system. Unexpectedly, the presence of 0.5 wt% MGDA the formulation is clear, suggesting MDGA improves the diluted product stability.