Dry cleaning machine and method of dry cleaning

Abstract

The object is to avoid contaminating the washing conversely by contaminated detergent and provide a dry cleaning machine and dry cleaning method, solving hygienic issues. In a dry cleaning machine which supplies detergent from a detergent tank 11 to a washing tank 10 and washes the washing in the washing tank 10 and treats detergent used in the washing tank 10 by a filtering tank 16 and sends the treated detergent to the washing tank 10 to use detergent cyclically, wherein contaminating the washing conversely by washing can be prevented, as detecting contamination level of detergent discharged from the washing tank 10 while supplying detergent to the washing tank 10 and washing the washing, and when the detergent contamination level reached a prescribed threshold level, storing the detergent discharged from the washing tank 10 temporarily and sending the detergent to a distiller 14 and supplying fresh detergent from the detergent tank 11 to the washing tank 10.

1 - 5 . (canceled)  
   
   
       6 . A method of dry cleaning articles which comprises the steps of: 
 supplying articles to be dry cleaned and detergent into a washing tank;    detecting detergent contamination level just after washing while treating used detergent in a filtering tank and reusing the detergent in the washing tank; and    terminating the supply of reused detergent to the filtering tank and supplying fresh detergent to the washing tank to prevent detergent contamination from exceeding a prescribed threshold level when the detergent contamination is detected as reaching the prescribed threshold level.    
   
   
       7 . The method of dry cleaning articles according to  claim 6 , wherein the contamination level of detergent, supplied from the filtering tank to the washing tank, is detected and a channel from the filtering tank to the washing tank is closed to shut detergent supply to the washing tank when the contamination level indicates an abnormal value.