Abstract:
A system and method are provided for dry cleaning articles utilizing a siloxane solvent. The system includes a cleaning basket for receiving articles therein and a one or more tanks for containing a siloxane solvent. Coupled between the tank and the cleaning basket is a pump for immersing the articles in the cleaning basket with the siloxane solvent. Also included is a still for distilling the dirty siloxane solvent to recover the pure siloxane solvent. A condenser is coupled to the cleaning basket and/or the still for recovering condensed vapors. For decanting any water in the siloxane solvent received from the condenser, a separator is coupled to the condenser. A fan is coupled to the cleaning basket for circulating air past the condenser, then the heater coils and into the cleaning basket for drying and cooling the articles.
Abstract:
The present invention comprises a closed loop dry cleaning system and method, in which dry cleaning machinery is used in conjunction with a specific solvent which is derived from an organic/inorganic hybrid (organo silicone). In this class of organo silicones is a group known as cyclic siloxanes. The cyclic siloxanes present the basis for material composition of the solvent chemistry which allows this dry cleaning system to be highly effective. The cyclic-siloxane-based solvent allows the system to result in an environmentally friendly process which is, also, more effective in cleaning fabrics and the like than any known prior system. The siloxane composition is employed in a dry cleaning machine to carry out the method of the invention. In a preferred embodiment, the method comprises the steps of loading articles into a cleaning basket; agitating the articles and the siloxane composition in which they are immersed; removing most of the siloxane composition; centrifuging the articles; and removing the articles from the basket after cooling the articles.
Abstract:
A process for simultaneous cleaning and finishing of soiled textile material in which the textile is (A) agitated in a cleaning bath consisting essentially of a major amount of a textile dry cleaning solvent and optionally minor amounts of water, and containing (1) an insoluble polyfluoroalkylsubstituted stain repellent material and (2) optionally an emulsion-promoting agent which does not adversely influence the stain repellency of the treated textile material, and then (B) is dried.
Abstract:
Oil impregnated textile cleaning utensils can be cleaned and prepared for reuse in a single brief operation by using a petroleum mineral oil as the cleaning medium. The utensils are cleaned by placing them into the wheel of a commercial dry cleaning apparatus then adding an excess of oil beyond that necessary to saturate the utensils at a temperature between 60250*F. and agitating the wheel for about 15 minutes. The oil is drained off and the utensils are spun to remove excess oil but leave about 20 to 40 wt. percent oil in the utensil based on the weight of the clean, dry utensil or implement.
Abstract:
OIL IMPREGNATED TEXTILE CLEANING UTENSILS CAN BE CLEANED AND PREPARED FOR REUSE IN A SINGLE BRIEF OPERATION BY USING A PETROLEUM MINERAL OIL AS THE CLEANING MEDIUM. THE UTENSILS ARE CLEANED BY PLACING THEM INTO THE WHEEL OF A COMMERCIAL DRY CLENAING APPARATUS THEN ADDING AN EXCESS OF OIL BEYOND THAT NECESSARY TO SATURATE THE UTENSILS AT A TEMPERATURE BETWEEN 60-250*F. AND AGITATING THE WHEEL FOR ABOUT 15 MINUTES. THE OIL IS DRAINED OFF AND THE UTENSILS ARE SPUN TO REMOVE EXCESS OIL BUT LEAVE ABOUT 20 TO 40 WT. PERCENT OIL IN THE UTENSIL BASED ON THE WEIGHT OF THE CLEAN, DRY UTENSIL OR IMPLEMENT.