Invention Application
US20090255061A1 CLEANING SYSTEM UTILIZING AN ORGANIC SOLVENT AND A PRESSURIZED FLUID SOLVENT
审中-公开
使用有机溶剂和增压液体溶剂的清洁系统
- Patent Title: CLEANING SYSTEM UTILIZING AN ORGANIC SOLVENT AND A PRESSURIZED FLUID SOLVENT
- Patent Title (中): 使用有机溶剂和增压液体溶剂的清洁系统
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Application No.: US12490013Application Date: 2009-06-23
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Publication No.: US20090255061A1Publication Date: 2009-10-15
- Inventor: Timothy J. Racette , Gene R. Damaso , James E. Schulte
- Applicant: Timothy J. Racette , Gene R. Damaso , James E. Schulte
- Applicant Address: US IL Naperville
- Assignee: Eminent Technologies LLC
- Current Assignee: Eminent Technologies LLC
- Current Assignee Address: US IL Naperville
- Main IPC: D06L1/02
- IPC: D06L1/02

Abstract:
A cleaning system that utilizes an organic cleaning solvent and pressurized fluid solvent is disclosed. The system has no conventional evaporative hot air drying cycle. Instead, the system utilizes the solubility of the organic solvent in pressurized fluid solvent as well as the physical properties of pressurized fluid solvent. After an organic solvent cleaning cycle, the solvent is extracted from the textiles at high speed in a rotating drum in the same way conventional solvents are extracted from textiles in conventional evaporative hot air dry cleaning machines. Instead of proceeding to a conventional drying cycle, the extracted textiles are then immersed in pressurized fluid solvent to extract the residual organic solvent from the textiles. This is possible because the organic solvent is soluble in pressurized fluid solvent. After the textiles are immersed in pressurized fluid solvent, pressurized fluid solvent is pumped from the drum. Finally, the drum is de-pressurized to atmospheric pressure to evaporate any remaining pressurized fluid solvent, yielding clean, solvent free textiles. The organic solvent is preferably dipropylene glycol n-butyl ether, tripropylene glycol n-butyl ether or tripropylene glycol methyl ether, a mixture thereof, or a similar solvent and the pressurized fluid solvent is preferably densified carbon dioxide.
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