Cleaning method and system utilizing microcapsules

Details Cleaning method and system utilizing microcapsules Cleaning method and system utilizing microcapsules

2010-11-08

2011-11-01

Khan, Amina (Department: 1764)

Cleaning and liquid contact with solids

Processes

Including application of electrical radiant or wave energy...

C008S137000, C015S094000, C137S201000

Reexamination Certificate

active

08048232

ABSTRACT:
A cleaning method uses a cleaning agent in which microcapsules are dispersed therein. Each of the microcapsules encapsulates a gas precursor, which is capable of undergoing a phase transition to a gas phase by application of ultrasonic wave energy. In the cleaning method, clothing to be cleaned is wetted with the cleaning agent, and then an ultrasonic wave is applied to the clothing to cause the microcapsules to expand and explode, releasing gas. Explosion energy of the microcapsules contribute to remove dirt stains from the clothing. In order to facilitate absorption of the cleaning agent, a smaller ultrasonic wave may be applied to the article before applying the ultrasonic wave for explosion.

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