Dentifrice packaging process
First Claim
1. A process for packaging a dentifrice containing carrageenan, in which such carrageenan is stabilized, which comprises directing microwave radiation onto such a dentifrice while it is being moved into a filling apparatus or into a vessel from which it is to be delivered to such filling apparatus, with the microwave radiation applied being in such quantity as to raise the temperature of the dentifrice to at least the gel-sol transition temperature of the carrageenan, filling the dentifrice into an end use package, and quiescently cooling the dentifrice to room temperature in the package.
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Accused Products
Abstract
A method for stabilizing a cosmetic composition containing carrageenan, specifically, a toothpaste, wherein microwave radiation, preferably in the 0.8 to 3 gigahertz frequency range, is directed onto the toothpaste so as to raise its temperature to at least the gel-sol transition temperature of the carrageenan, after which the toothpaste is quiescently cooled to room temperature. The use of microwave radiation facilitates an even heating of the toothpaste, so that temperature sensitive components thereof are not adversely affected, and promotes excellent control of temperature regulation. Heating of the dentifrice, with improved thickening and stabilization thereof, is obtainable by passing it through a conduit while directing microwave radiation onto it and then filling it into suitable dispensing containers, or by filling the dentifrice into such containers and then subjecting them to microwave radiation.
26 Citations
20 Claims
- 1. A process for packaging a dentifrice containing carrageenan, in which such carrageenan is stabilized, which comprises directing microwave radiation onto such a dentifrice while it is being moved into a filling apparatus or into a vessel from which it is to be delivered to such filling apparatus, with the microwave radiation applied being in such quantity as to raise the temperature of the dentifrice to at least the gel-sol transition temperature of the carrageenan, filling the dentifrice into an end use package, and quiescently cooling the dentifrice to room temperature in the package.
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20. A process for stabilizing a dentifrice containing carrageenan which comprises directing microwave radition onto such a dentifrice while it is in motion, with the microwave radiation applied being in such quantity as to raise the temperature of the dentifrice to at least the gel-sol transition temperature of the carrageenan, and quiescently cooling the dentifrice to room temperature.
Specification