Cleaning Method
This invention relates to a method of softening water and/or in which the deposition of hard water scale is inhibited. The invention relates in particular to such a method carried out in a domestic environment, in particular in ware-washing machines. A compressed water-softening composition comprising a water softening active and a blend of disintegrating agents, comprising a cross-linked polyplasdone, a water-swellable cellulose and optionally a water soluble salt is claimed.
1 . A compressed water-softening composition comprising at least one water-softening active and a blend of disintegrating agents comprising,
a cross linked polyplasdone;
a water swellable cellulose and, optionally
a water soluble salt.
2 . A compressed water-softening composition as claimed in claim 1 wherein the composition is substantially free of surfactant or bleach ingredients.
3 . A compressed water-softening composition according to in claim 1 wherein the blend of disintegrating agents is present in an amount of up to 10% by weight of the composition.
4 . A compressed water-softening composition according to claim 3 wherein the blend of disintegrating agents is present in an amount of at least 0.1% by weight of the composition.
5 . A compressed water-softening composition according to claim 1 wherein the water-soluble salt has a solubility of at least 50 g/100 g of deionised water at 20° C.
6 . A compressed water-softening composition according to claim 1 wherein the water-swellable cellulose has a water uptake of at least 15 g of deionised water at 20° C. per g of water-swellable cellulose.
7 . A compressed water-softening composition according to claim 1 wherein the water-softening active is selected from the group: ion exchange agents, ion capture agents, and anti-nucleating agents.
8 . A compressed water-softening composition according to claim 1 wherein the cross linked polyplasdone is present in an amount of up to 1.4% wt. of the said composition.
9 . A compressed water-softening composition according to claim 1 wherein the cross linked polyplasdone is present in an amount of up to 95% wt. of the blend of disintegrating agents.
10 . A compressed water-softening composition according to claim 1 wherein the water-swellable cellulose is present in an amount of up to 1.4% wt. of the said composition.
11 . A compressed water-softening composition according to claim 1 wherein the water-swellable cellulose is present in an amount of up to 95% wt. of the blend of disintegrating agents.
12 . A compressed water-softening composition according to claim 2 herein the blend of disintegrating agents is present in an amount of up to 10% by weight of the composition.
13 . A compressed water-softening composition according to claim 2 wherein the blend of disintegrating agents is present in an amount of at least 0.1% by weight of the composition.
14 . A compressed water-softening composition according to claim 2 wherein the water-soluble salt has a solubility of at least 50 g/100 g of deionised water at 20° C.
15 . A compressed water-softening composition according to claim 2 wherein the water-swellable cellulose has a water uptake of at least 15 g of deionised water at 20° C. per g of water-swellable cellulose.
16 . A compressed water-softening composition according to claim 2 wherein the water-softening active is selected from the group: ion exchange agents, ion capture agents, and anti-nucleating agents.
17 . A compressed water-softening composition according to claim 2 wherein the composition comprises less than 5% by weight of a surfactant or bleach ingredients.
18 . A compressed water-softening composition according to claim 17 wherein the composition comprises less than 1% by weight of a surfactant or bleach ingredients.
19 . A compressed water-softening composition according to claim 18 wherein the composition comprises 0% by weight of a surfactant or bleach ingredients.