Cleaning product comprising an inverted container assembly and a viscous cleaning composition

1. A cleaning product comprising: an inverted container assembly and a liquid hand dishwashing cleaning composition contained in the inverted container assembly, wherein: the inverted container assembly comprises an inverted container having a bottom surface and a top surface located away from the bottom surface, the bottom surface having an opening; and a liquid dispenser attached to the bottom surface of the inverted container, wherein:

a) the cleaning composition comprises from about 1% to about 60% by weight of the total composition of a surfactant system, wherein the surfactant system comprises:

i) an anionic surfactant; and

ii) a primary co-surfactant system, wherein the primary co-surfactant system is selected from the group consisting of amphoteric surfactant, zwitterionic surfactant and mixtures thereof;

 wherein the composition comprises the anionic surfactant and the primary cosurfactant system is in a weight ratio of from about 8:1 to about 1:1; and

b) wherein the liquid dispenser comprises a body and a valve, wherein the body comprises a connecting sleeve adaptable for engaging to the inverted container, wherein the connecting sleeve defines an internal discharge conduit, and wherein the valve extends across the internal discharge conduit.

2. The cleaning product according to claim 1 , wherein the anionic surfactant is selected from the group consisting of alkyl sulfate, alkyl alkoxy sulfate and mixtures thereof.

3. The cleaning product according to claim 1 , wherein the primary co-surfactant is an amphoteric surfactant.

4. The cleaning product according to claim 1 wherein the surfactant system of the composition further comprises from about 0.1% to about 10% by weight of the total composition of a secondary co-surfactant system comprising a non-ionic surfactant, wherein the anionic surfactant and the non-ionic surfactant are in a ratio of from 2:1 to 50:1.

5. The cleaning product according to claim 4 , wherein the non-ionic surfactant is an alkyl ethoxylated surfactant comprising from 9 to 15 carbon atoms in its alkyl chain and from 5 to 12 units of ethylene oxide per mole of alcohol.

6. The cleaning product according to claim 3 , wherein the amphoteric surfactant is an amine oxide surfactant selected from the group consisting of linear or branched alkyl amine oxide, linear or branched alkyl amidopropyl amine oxide, and mixtures thereof.

7. The cleaning product according to claim 1 wherein the composition has a shear viscosity of from about 10 mPa·s to about 10,000 mPa·s, at about 10/s as measured according to the Shear Viscosity Test Method at about 20° C.

8. The cleaning product according to claim 1 wherein the composition has a pH in the range of from about 5 to about 12 as measured at about 10% dilution in distilled water at about 20° C.

9. The cleaning product according to claim 1 wherein the composition further comprises from about 0.1% to about 1% by weight of the total composition of an amphiphilic alkoxylated polyalkyleneimine, wherein the amphiphilic alkoxylated polyalkyleneimine is an alkoxylated polyethyleneimine polymer comprising a polyethyleneimine backbone having average molecular weight range from about 100 to about 5,000 Daltons.

10. The cleaning product according to claim 1 wherein the composition further comprises from about 0.1% to about 5% by weight of the total composition of at least one ethyleneoxide (EO)-propyleneoxide (PO)-ethyleneoxide (EO) triblock co-polymer of Formula (I):

(EO) x -(PO) y -(EO) x   (I)

wherein:

each x is independently on average between about 1 and about 80; and

y is on average between about 1 and about 60.

11. The cleaning product according to claim 1 , wherein the composition comprises: from about 0.05% to about 2%, by weight of the total composition of a salt; from about 1% to about 10% by weight of the total composition of a hydrotrope; and from about 0.01% to about 25% by weight of the total composition of an organic solvent.

12. The cleaning product according to claim 1 wherein the connecting sleeve is adaptable for engaging to an exterior surface proximate the opening of the inverted container and is spaced radially to define the internal discharge conduit for establishing fluid communication with the composition contained in the inverted container.

13. The cleaning product according to claim 12 wherein the valve has an interior side for being contacted by the cleaning composition contained inside the inverted container and an exterior side for being exposed to the exterior atmosphere, wherein the valve defines a dispensing orifice that is reactably openable when the pressure on the valve interior side exceeds the pressure on the valve exterior side, and wherein the liquid dispenser further comprises a baffle located above the interior side of the valve.

14. The cleaning product according to claim 13 wherein the baffle includes an occlusion member supported by at least one support member which accommodates movement of the occlusion member between a closed position occluding composition flow into at least a portion of the discharged conduit when the baffle is subjected to an upstream hydraulic hammer pressure.

15. The cleaning product according to claim 12 wherein the liquid dispenser further comprises an impact resistance system localized upstream of the valve and, if present, the baffle ( 30 ), wherein the impact resistance system comprises a housing having a cavity therein and extending longitudinally from the body and radially inwardly from the sleeve, wherein the housing comprises at least one inlet opening that provides a flow path for the composition from the inverted container into the housing and at least one outlet opening that provides a path of egress for the composition from the housing to the exterior atmosphere when the dispensing orifice is opened, wherein the cavity is adapted to be partially occupied by a compressible substance, wherein the compressible substance is selected from a gas, a foam, a sponge or a balloon.

16. The cleaning product according to claim 15 wherein the compressible substance is a gas, the ratio of the volume of the gas, inside the housing at a steady-state to the volume of the inverted container is higher than about 0.001.

17. The cleaning product according to claim 1 wherein the liquid dispenser does not comprise a closing cap.

18. A method of cleaning dishware with the cleaning product according to claim 1 , the method comprising the step of squeezing the inverted container to dispense the cleaning composition from the opening on the bottom surface.