Patent ID: 8349788

Claim:
A method for determining the quality of fabric safety of a aqueous metallic salt of hypochlorous acid bleach solution for use in cleaning a stain from a soft fabric article, said method comprising, providing said solution as an admixture of metallic salt of hypochlorous acid and alkali metal hydroxide, wherein the metallic salt of hypochlorous acid and alkali metal hydroxide ingredients of the admixture are related by a weight concentration ratio, said ratio defined as the weight percent concentration of metallic salt of hypochlorous acid over the weight percent concentration of alkali metal hydroxide, wherein the numerical value of said ratio does not exceed 30:1, and said numerical value of said ratio is an index pointing out the quality of fabric safety of said admixture, said quality of fabric safety on a scale ranging from cotton damaging to cotton safe, whereas said admixture is a composition consisting of an effective amount of metallic salt of hypochlorous acid, and a alkali metal hydroxide.