Method for dry cleaning with binary vapor

Abstract

This invention is a method for dry cleaning with binary vapor in which articles such as fabrics and the like are subjected to tumbling in a basket or chamber while heated air is circulated through said chamber. While being tumbled, the articles are exposed to a binary vapor consisting of water and solvent under pressure which loosens or removes debris and soils from the articles. The debris and soils are carried by the air and binary vapor to a filter where the soils and debris are captured with the binary vapor continuing on to a condenser where the binary vapor is converted to binary liquid. Upon conclusion of the cycle the articles are removed from the chamber.

1 . A dry cleaning method comprising the steps of: placing articles to be dry cleaned in a cleaning chamber; agitating the articles in the chamber; formulating a binary vapor comprised of vaporized water and solvent; pressurizing said binary vapor; introducing said binary vapor under pressure into said chamber and onto said articles while being agitated; transporting said binary vapor with debris and soils which may have been removed from the articles by exposure to the binary vapor out of the cleaning chamber; and removing said articles from said chamber.  
   
   
       2 . The method of  claim 1  wherein debris and soils which may have been removed from the articles are filtered from the binary vapor and the binary vapor is recovered for reuse.  
   
   
       3 . A dry cleaning method comprising the steps of: placing articles to be dry cleaned in a cleaning chamber; agitating the articles in the chamber; circulating a gaseous fluid including a binary vapor containing vaporized water and vaporized solvent into said chamber and articles; circulating said gaseous fluid with any debris and soils which may have been removed from said articles out of said chamber; and removing said articles from said chamber.