The older formulations used ammonia, but latter used two amine surfactants   
   too, In think that the trademarked idea, it might be patented. These all kept   
   basic (alkaline) in an ammonia solution. These compounds are alkaline and one   
   is also hygroscopic. So    
   they must find keeping a long open time, staying wet, and alkaline works.   
   Alkalinity can allow natural oils to be broken down and become soluble. It   
   also helps other soaps to work best, and they leave non residue as they   
   evaporate. They further combine    
   the alkaline cleaning with a solvent, that can help cut and lift grease and   
   even hydrocarbons. Is sort of like a streak free volatile liquid version of   
   what TSP does on walls (TSP leaves a residue, but otherwise great stuff).   
      
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