Bleach-free detergent tablet

Abstract

The present invention relates to a bleach-free detergent tablet for use in the laundering of coloured garments. The tablet composition provides a pH through the wash of less than 9, comprises at least one surfactant and has a normalised soil removal index of greater than minus 2.

Description

Claims

1. A bleach-free detergent tablet comprising a composition, wherein the composition provides a pH through the wash of less than about 9 and wherein the composition comprises at least about one surfactant, and has an average normalised soil removal index of greater than about minus 2.

2. A bleach-free detergent tablet according to claim 1 wherein the composition has an average normalised soil removal index of greater than about zero.

3. A bleach-free detergent tablet according to claim 1 wherein the composition comprises greater than about 10% alkaline or alkaline earth metal sulphate.

4. A bleach-free detergent tablet according to claim 1 wherein the composition comprises greater than about 15% alkaline or alkaline earth metal sulphate.

5. A bleach-free detergent tablet according to claim 1 wherein the pH through the wash is between about 7 and about 8.9.

6. A bleach-free detergent tablet according to claim 1 wherein the pH through the wash is between about 8.3 and about 8.7.

7. A bleach-free detergent tablet according to claim 1 comprising about 10% or more surfactant.

8. A bleach-free detergent tablet according to claim 1 wherein the composition comprises at least about one anionic surfactant.

9. A bleach-free detergent tablet according to claim 1 wherein the anionic surfactant is linear alkyl benzene sulphonate.

10. A bleach-free detergent tablet according to claim 1 wherein at least one surfactant is incorporated into the tablet in an agglomerate.

11. A bleach-free detergent tablet according to claim 1 wherein the composition comprises less than about 10% alkaline or alkaline earth metal carbonate, silicate, metasilicate or other alkalinity providing ingredients.

12. A bleach-free detergent tablet in the form of a kit comprising about one or more tablets, wherein the about one or more tablets comprises a composition, wherein the composition of the about one or more tablets provides a pH through the wash of less than about 9, wherein the composition comprises at least one surfactant and wherein the kit has a dosage weight of less than about 75 g.

13. A bleach-free detergent tablet according to claim 12 wherein the pH through the wash is between about 7 and about 8.9.

14. A bleach-free detergent tablet according to claim 12 wherein the pH through the wash is between about 8.3 and about 8.7.

15. A bleach-free detergent tablet according to claim 12 comprising about 10% or more surfactant

16. A bleach-free detergent tablet according to claim 12 wherein the composition comprises at least about one anionic surfactant.

17. A bleach-free detergent tablet according to claim 12 wherein the anionic surfactant is linear alkyl benzene sulphonate.

18. A bleach-free detergent tablet according to claim 12 wherein at least one surfactant is incorporated into the tablet in an agglomerate.

19. A bleach-free detergent tablet according to claim 12 wherein the composition comprises less than about 10% alkaline or alkaline earth metal carbonate, silicate, metasilicate or other alkalinity providing ingredients.

20. A bleach-free detergent tablet kit according to claim 12 wherein the dosage weight is less than about 70 g.