Cleaning solution and method for producing the same

Abstract

The present invention has an object to provide a highly stable cleaning solution that generates a high concentration of hypochlorous acid during cleaning, and has sterilizing and washing out activity on bacteria and viruses. As means for achieving this object, a cleaning solution has been developed which is an aqueous solution containing hypochlorous acid and hypochlorite ions produced using a diaphragm-free electrolysis process. The effective residual chlorine concentration thereof and the hydrogen ion concentration exponent thereof are adjusted to a value from 500 ppm to 2000 ppm and to a value from pH 8.5 to pH 9.5, respectively. Thus, the cleaning solution remains stable for a prolonged period of time, and exhibits high sterilizing and wash-out activity during use.

1 .- 4 . (canceled) 
     
     
         5 . A cleaning solution containing hypochlorous acid and hypochlorite ions, wherein an effective residual chlorine concentration of the cleaning solution is a value from 500 ppm to 2000 ppm, wherein a hydrogen ion concentration exponent of the cleaning solution is a value from pH 9.3 to pH 9.6, and wherein the cleaning solution is applied during use to a smear that at least includes protein and covers an affected area, and the hypochlorite ions react with and wash out at least part of the smear such that the affected area resists observable biofilm for at least two weeks. 
     
     
         6 . The cleaning solution according to claim  1 , wherein the effective residual chlorine concentration of the cleaning solution is decreased to a value from 30 ppm to 300 ppm, wherein the pH of the cleaning solution is decreased to a value from pH 6.5 to pH 7.5, and wherein the cleaning solution improves the sterilizing effect by way of hypochlorous acid in an oral cavity environment.