High quality non-aerosol hand sanitizing foam

1. A non-aerosol foam sanitizer product comprising:

foam bubbles formed from a liquid mixture entrapping air;

wherein the liquid mixture comprises between 40% and 85% by weight of a C 1 -C 8 alcohol, at least one surfactant, and water;

wherein air is entrapped in the liquid mixture by repeatedly pumping a shot of the liquid mixture through a liquid pumping mechanism into a mixing chamber followed by pumping two or more shots of ambient air through two or more air pumping mechanisms into the mixing chamber to mix with the liquid mixture to form the foam product that is comprised of a plurality of foam bubbles

wherein at the time they are dispensed from a dispenser, more than about 50 percent of the foam bubbles have a diameter of between about 50 μm and about 250 μm.

2. The non-aerosol foam sanitizer product of claim 1 wherein the foam bubbles have a density of greater than about 0.10 grams/millimeter.

3. The non-aerosol foam sanitizer product of claim 1 wherein the surfactant comprises a compound containing silicone.

4. The non-aerosol foam sanitizer product of claim 1 wherein the surfactant comprises silane.

5. The non-aerosol foam sanitizer product of claim 1 wherein the surfactant comprises dimethicone.

6. The non-aerosol foam sanitizer product of claim 1 wherein the alcohol by volume greater than about 60%.

7. The non-aerosol foam sanitizer product comprising:

a plurality of foam bubbles;

wherein the plurality of foam bubbles are formed by a mixture of at least about 40% of a C 1 -C 8 alcohol, water, a surfactant and entrapped ambient air sourced from the atmosphere;

wherein the plurality of foam bubbles are formed by pumping the at least about 40% of a C1-C8 alcohol, water and surfactant from a first pump chamber into a mixing chamber; and wherein air is pumped from a second pump chamber into the mixing chamber to mix with the at least about 40% of a C1-C8 alcohol, water and surfactant, and air is pumped from a third pump chamber into the mixing chamber to mix with the at least about 40% of a C1-C8 alcohol, water, surfactant and air in the mixing chamber; and

wherein when the non-aerosol foam sanitizer product is dispensed from a dispenser, the average diameter of the foam bubbles are less than about 190 μm.

8. The non-aerosol foam sanitizer product of claim 7 wherein the average diameter of the foam bubbles are between about 160 μm and 190 μm.

9. The non-aerosol foam sanitizer product of claim 7 wherein the average diameter of the foam bubbles is about 180 μm.

10. The non-aerosol foam sanitizer product of claim 7 wherein the foam bubbles have a density of greater than about 0.10 grams/millimeter.

11. The non-aerosol foam sanitizer product of claim 7 wherein the surfactant comprises a compound containing silicone.

12. The non-aerosol foam sanitizer product of claim 7 wherein the alcohol by volume greater than about 70%.

13. The non-aerosol foam sanitizer product of claim 7 wherein the alcohol by volume greater than about 60%.

14. A non-aerosol foam sanitizer product comprising:

a plurality of foam bubbles formed by entrapping air in a liquid mixture;

the liquid mixture comprises one or more C 1 -C 8 alcohols in an amount of between 40% and 85% by weight, at least one surfactant, and water;

wherein air is entrapped in the liquid mixture by repeatedly pumping a shot of the liquid mixture through a non-piston liquid pumping mechanism into a mixing chamber followed by pumping two or more shots of ambient air through one or more non-piston pumping mechanisms into the mixing chamber to mix with the liquid mixture to form the foam product that is comprised of a plurality of foam bubbles

wherein more than about 50 percent of the foam bubbles have a diameter of between about 50 μm and about 250 μm at the time the non-aerosol foam sanitizer product is dispensed from a dispenser.

15. The non-aerosol foam sanitizer product of claim 14 wherein the foam bubbles have a density of greater than about 0.10 grams/millimeter.

16. The non-aerosol foam sanitizer product of claim 14 wherein the surfactant comprises a compound containing silicone.

17. The non-aerosol foam sanitizer product of claim 14 wherein the surfactant comprises silane.

18. The non-aerosol foam sanitizer product of claim 14 wherein the surfactant comprises dimethicone.

19. The non-aerosol foam sanitizer product of claim 14 wherein the alcohol by volume greater than about 60%.

20. The non-aerosol foam sanitizer product of claim 14 wherein the alcohol by volume is about 70%.