Stain treating composition
A multi-compartment liquid dispenser comprising first and second liquid containing compartments, wherein present in at least one compartment is a first component that generates a gas upon the mixing of the liquid contents of the first and second compartments and a second component that foams when gas is generated by the first component and the foam subsequently quickly breaks.
1 . A multi-compartment liquid dispenser comprising first and second liquid containing compartments, wherein present in at least one compartment is a first component that generates a gas upon the mixing of the liquid contents of the first and second compartments and a second component that foams when gas is generated by the first component and the foam subsequently quickly breaks.
2 . A dispenser according to claim 1 wherein hydrogen peroxide or an acid is present in the first compartment.
3 . A dispenser according to claim 2 wherein an effervescent agent is present in the second compartment.
4 . A dispenser according to claim 3 wherein the effervescent agent is an effervescent base or a peroxide reducing enzyme.
5 . A dispenser as according to claim 1 wherein the pH of one of said first or second liquid containing compartments is higher than the pH of the other of said first or second liquid containing compartments.
6 . A dispenser according to claim 5 wherein the first compartment does not contain a pH buffer.
7 . A dispenser according to claim 5 wherein the second compartment does contain a pH buffer.
8 . A dispenser according to claim 4 wherein the effervescent base is a carbonate or a bicarbonate.
9 . A dispenser according to claim 1 wherein the second component contains a nonionic surfactant having an HLB of greater than 10.
10 . A process for stain removal at a surface comprising
applying to that surface a mixture of at least two aqueous compositions, wherein present in at least one of the compositions is a first component that generates a gas upon the mixing of the liquid content of the first and second compartments and a second component that foams when gas is generated by the first component wherein the foam subsequently quickly breaks.