Foaming cleansing products
First Claim
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1. A foam producing cleansing product comprising:
- (A) a foamable cleansing liquid composition comprising(i) from about 0.1% to about 20% of a surfactant selected from the group consisting of amphoteric surfactants, nonionic surfactants, and mixtures thereof,(ii) from about 0.1% to about 10% of a water soluble cationic or nonionic polymer,(iii) from about 0.1% to about 25% of a humectant,(iv) from about 0.05% to about 10% of an emollient, and(v) from about 35% to about 99.65% water,wherein said liquid composition has a viscosity of from about 1 cps to about 300 cps; and
(B) a foam dispenser for dispensing a final foam from an incoming intermediate foam, said dispenser comprising a reservoir to contain said liquid composition, a manually-actuated means for generating a volume of a mixture of said liquid composition and a gas, and a foam dispensing nozzle sealably attached in fluid communication with said manually-actuated means wherein the improvement comprises a nozzle comprising;
(i) an inlet conduit for receiving an intermediate foam consisting of a mixture of a liquid composition and a gas at a volumetric flow rate sufficiently high that it will produce an average incoming intermediate foam velocity which is too great to permit effective bubble bursting to put said foam in a final foam as said foam passes through at least one downstream foam refining means having a plurality of passageways therethrough; and
(ii) a velocity decreasing means placing said inlet conduit in fluid communication with a foam refining means, wherein said velocity decreasing means lowers the average velocity of said intermediate foam so when said foam passes through said foam refining means it is at a velocity no greater than 300 cm/sec.
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Abstract
The present invention relates to foam producing products useful for personal cleansing. These products comprise a foamable liquid composition and a foam-producing foam dispenser. These products provide a stable homogeneous foam and good lathering and cleansing characteristics. These products are very mild to the skin and are useful for moisturizing the skin and for delivering a wide variety of active ingredients to the skin.
314 Citations
35 Claims
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1. A foam producing cleansing product comprising:
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(A) a foamable cleansing liquid composition comprising (i) from about 0.1% to about 20% of a surfactant selected from the group consisting of amphoteric surfactants, nonionic surfactants, and mixtures thereof, (ii) from about 0.1% to about 10% of a water soluble cationic or nonionic polymer, (iii) from about 0.1% to about 25% of a humectant, (iv) from about 0.05% to about 10% of an emollient, and (v) from about 35% to about 99.65% water, wherein said liquid composition has a viscosity of from about 1 cps to about 300 cps; and (B) a foam dispenser for dispensing a final foam from an incoming intermediate foam, said dispenser comprising a reservoir to contain said liquid composition, a manually-actuated means for generating a volume of a mixture of said liquid composition and a gas, and a foam dispensing nozzle sealably attached in fluid communication with said manually-actuated means wherein the improvement comprises a nozzle comprising; (i) an inlet conduit for receiving an intermediate foam consisting of a mixture of a liquid composition and a gas at a volumetric flow rate sufficiently high that it will produce an average incoming intermediate foam velocity which is too great to permit effective bubble bursting to put said foam in a final foam as said foam passes through at least one downstream foam refining means having a plurality of passageways therethrough; and (ii) a velocity decreasing means placing said inlet conduit in fluid communication with a foam refining means, wherein said velocity decreasing means lowers the average velocity of said intermediate foam so when said foam passes through said foam refining means it is at a velocity no greater than 300 cm/sec. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A foam producing cleansing product comprising:
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(A) a foamable cleansing liquid composition comprising (i) from about 0.1% to about 20% of a surfactant selected from the group consisting of amphoteric surfactants, nonionic surfactants, and mixtures thereof, (ii) from about 0.1% to about 10% of a water soluble cationic or nonionic polymer, (iii) from about 0.1% to about 25% of a humectant, (iv) from about 0.05% to about 10% of an emollient, and (v) from about 35% to about 99.65% water, wherein said liquid composition has a viscosity of from about 1 cps to about 300 cps; and (B) a manually-actuable foam dispenser for producing and dispensing a high quality final foam from a foamable liquid and a gas, said foam being comprised of bubbles having a number-average diameter of about D1, said dispenser comprising; (i) a manually-actuable means for mixing a quantity of said foamable liquid with a quantity of said gas to produce an intermediate foam which comprises bubbles having a number-average diameter greater than about D1 and a wider bubble size distribution than the final foam, at a volumetric flow rate Q which is dependent upon the speed of actuation of said manually-actuable means by the user; and (ii) a foam dispensing nozzle comprising a conduit in fluid communication with said manually-actuable means for receiving the intermediate foam from said manually-actuable means; and
at least one foam refining means located in said conduit, said foam refining means comprising a plurality of substantially uniformly-sized and evenly distributed passageways;
wherein said intermediate foam passes through said passageways at a velocity, V2, failing within the range of a minimum velocity, V2,min, and a maximum velocity, V2,max, wherein the conditions needed to cause bursting of said bubbles having a diameter larger than about D1 are met. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35)
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Specification