Personal care composition foaming product and foaming dispenser
View Patent ↗A manually-actuable, non-aerosol dispenser to be used with a personal care composition having a relatively higher viscosity that gives a desired foamed composition generated from a manually-actuable, non-aerosol dispenser.
1. A personal care article comprising:
(1) a personal care composition comprising a low-shear viscosity of at least 100 cps; the personal care composition being shear-thinning;
(2) a manually-actuable, non-aerosol dispensers comprising:
(a) a reservoir for holding a liquid to be dispensed in the form of foam; the reservoir comprises a volume such that the reservoir volume is larger than the volume of the personal care composition contained within the reservoir; the reservoir further comprising a headspace, the headspace comprising air;
(b) a foamer assembly which can be mounted on or in an opening of the reservoir; the foamer assembly comprises a dip tube, a mixing chamber and a dispensing head; the dip tube extends into the reservoir and into contact with the personal care composition, the dip tube fluidly connecting the mixing chamber with the personal care composition, the mixing chamber fluidly connected to a dispensing head, the dispensing head comprising a foam fluid connection contained within the dispensing head and the dispensing head further comprising a dispensing orifice; the foam fluid connection containing one or more porous elements;
the mixing chamber comprises an outer wall which defines an internal volume of the mixing chamber; the outer wall comprises a top edge comprising a circumference; the circumference defining a top area; the mixing chamber further comprising one or more air ingress orifice wherein the total area of the one or more air ingress orifices is from about 0.62 mm 2 to about 3.14 mm 2 , one or more liquid ingress orifices wherein the total area of the one or more liquid ingress orifices is from about 1.5 mm 2 to about 3 mm 2 and one or more mixing chamber egress orifices wherein the total area of the one or more mixing chamber egress orifices is from about 0.314 mm 2 to about 9.42 mm 2 ;
wherein the at least one air ingress orifice and at least one liquid ingress orifice are selected such that a ratio of personal care composition to air is from about 1:6 to about 1:15; and wherein the dispenser dispenses a foamed personal care composition comprising a foam specific volume from about 6 mL/g to about 14 mL/g.
2. The personal care article of claim 1 , wherein the total area of the one or more air ingress orifices is from about 1.26 mm 2 to about 1.88 mm 2 .
3. The personal care article of claim 1 , wherein the total area of the one or more liquid ingress orifices is from about 1.8 mm 2 to about 2.3 mm 2 .
4. The personal care article of claim 1 , wherein the total area of the one or more mixing chamber egress orifices is from about 2.512 mm 2 to about 5.652 mm 2 .
5. The personal care article of claim 1 , wherein: the total area of the one or more air ingress orifices is from about 1.26 mm 2 to about 1.88 mm 2 ; the total area of the one or more liquid ingress orifices is from about 1.8 mm 2 to about 2.3 mm 2 ; and the total area of the one or more mixing chamber egress orifices is from about 2.512 mm 2 to about 5.652 mm 2 .
6. The personal care article of claim 1 , wherein the mixing chamber further comprises a diffuser plate, the diffuser plate comprising the mixing chamber egress.
7. The personal care article of claim 1 , wherein the air of the headspace enters into the mixing chamber by the air ingress orifice; the headspace is in direct communication pathway to the mixing chamber through the air ingress orifice.
8. The personal care article of claim 1 , wherein the personal care composition is fluidly communicated from the reservoir by the dip tube to the mixing chamber by an indirect communication with the mixing chamber.
9. The personal care article of claim 1 , wherein the dip tube comprises a diameter of greater than 2.0 mm.
10. The personal care article of claim 1 , wherein the foamer assembly further comprises a ball valve, silicone seal or gasket located in communication with the headspace of the reservoir.
11. The personal care article of claim 1 , wherein the foam fluid connection contains at least two screens or meshes.
12. The personal care article of claim 11 , wherein the foam fluid connection contains two screens or meshes.
13. The personal care article of claim 12 , wherein one mesh or screen is in close proximity to the mixing chamber egress orifice and the other mesh or screen is in close proximity to the foamer dispensing orifice.
14. The personal care article of claim 11 , wherein the total area of the one or more air ingress orifices is from about 1.26 mm 2 to about 1.88 mm 2 .
15. The personal care article of claim 11 , wherein the total area of the one or more liquid ingress orifices is from about 1.8 mm 2 to about 2.3 mm 2 .
16. The personal care article of claim 11 , wherein the total area of the one or more mixing chamber egress orifices is from about 2.512 mm 2 to about 5.652 mm 2 .
17. The personal care article of claim 11 , wherein the mixing chamber egress orifice is provided in the diffuser plate.
18. The personal care article of claim 1 , wherein the personal care composition is a hair colorant composition.
19. A personal care article comprising:
(1) a personal care composition comprising a low-shear viscosity of at least 100 cps; the personal care composition being shear-thinning;
(2) a manually-actuable, non-aerosol dispensers comprising:
(a) a reservoir for holding a liquid to be dispensed in the form of foam; the reservoir comprises a volume such that the reservoir volume is larger than the volume of the personal care composition contained within the reservoir; the reservoir further comprising a headspace, the headspace comprising air;
(b) a foamer assembly which can be mounted on or in an opening of the reservoir; the foamer assembly comprises a dip tube, a mixing chamber and a dispensing head; the dip tube extends into the reservoir and into contact with the personal care composition, the dip tube fluidly connecting the mixing chamber with the personal care composition, the mixing chamber fluidly connected to a dispensing head, the dispensing head comprising a foam fluid connection contained within the dispensing head and the dispensing head further comprising a dispensing orifice; the foam fluid connection containing at least two screens or meshes;
the mixing chamber comprises an outer wall which defines an internal volume of the mixing chamber; the outer wall comprises a top edge comprising a circumference; the circumference defining a top area; the mixing chamber further comprising one or more air ingress orifice wherein the total area of the one or more air ingress orifices is from about 0.62 mm 2 to about 3.14 mm 2 , one or more liquid ingress orifices wherein the total area of the one or more liquid ingress orifices is from about 1.5 mm 2 to about 3 mm 2 and one or more mixing chamber egress orifices wherein the total area of the one or more mixing chamber egress orifices is from about 0.314 mm 2 to about 9.42 mm 2 ;
wherein the at least one air ingress orifice and at least one liquid ingress orifice are selected such that a ratio of personal care composition to air is from about 1:6 to about 1:15; and wherein the dispenser dispenses a foamed personal care composition comprising a foam specific volume from about 6 mL/g to about 14 mL/g.
20. The personal care article of claim 19 , wherein the personal care composition is a hair colorant composition.