Hypochlorous acid/alkali metal hydoxide-containing products, methods and equipment for removing stains from fabrics
OwnerLawnie H. Taylorinventor
Life of this patent
Estimating the term…
Abstract
Methodologies and equipment for preparing a hypochlorite solution bleach consumer product to remove menstrual fluid, underarm perspiration or other hard-to-remove stains from soft fabric articles with reduced damage to the fabric articles when compared with popular chlorine bleaches. The soft fabric articles preferably are in white, although the present invention can also be applied to articles in other colors. In one embodiment, the weight concentration ratio of the alkali metal hydroxide over the hypochlorite salt in the hypochlorite admixture solution is no less than 1:12.5. The hypochlorite admixture solution may contain at least 0.2% by weight of sodium hydroxide and/or have a pH of at least 11.8.
Claims74
A method for preparing a cleaning composition for removing a stain from a soft fabric article, said method comprising:
- providing a cleaning composition for use in cleaning a stain from a soft fabric article,
- wherein said cleaning composition consists of an effective amount of a metallic salt of hypochlorous acid and at least 0.2 weight percent of an alkali metal hydroxide.
A bleach product consisting of:
- a cleaning composition for use in cleaning a stain from a soft fabric article,
- wherein said cleaning composition consists of:
- (1) an effective amount of a metallic salt of hypochlorous acid, and
- (2) at least 0.2 weight percent of an alkali metal hydroxide.
A method for preparing a cleaning composition for removing a stain from a soft fabric article, said method comprising:
- providing a cleaning composition for use in cleaning a stain from a soft fabric article,
- wherein said cleaning composition consists of (1) an effective amount of a metallic salt of hypochlorous acid, and (2) at least 0.2 weight percent of an alkali metal hydroxide, and
- wherein said cleaning composition has a pH of at least 11.8.
A bleach product consisting of:
- a cleaning composition, said cleaning composition consisting of
- (1) an effective amount of a metallic salt of hypochlorous acid, and
- (2) at least 0.2 weight percent an alkali metal hydroxide,
- wherein said cleaning composition has a pH of at least 11.8.
A bleach product consisting of:
- a first compartment which includes therein a first active ingredient of a cleaning composition consisting of a sodium hypochlorite solution having a pH of between 11 and 13, and
- a second compartment which includes therein a second active ingredient of said cleaning composition consisting of a sodium hydroxide solution.
Dependencies are inferred from the claim text.