Products, methods and equipment for removing stains from fabrics
OwnerLawnie H. Taylorinventor
Life of this patent
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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.
Claims71
A method for reducing the damaging effect of a hypochlorite salt-containing solution on a soft fabric article, comprising:
- modifying a hypochlorite salt-containing solution by adding an alkali metal hydroxide to the solution, forming a cleaning composition for use in cleaning a stain from a soft fabric article,
- wherein said hypochlorite salt-containing solution consists of a hypochlorite salt or an admixture of hypochlorite salt and an alkali metal hydroxide solution, and
- wherein the weight concentration ratio of the alkali metal hydroxide over the hypochlorite salt in the cleaning composition is no less than 1:12.5,
- whereby the cleaning composition consists of hypochlorite salt, alkali metal hydroxide, and water.
A bleach product consisting of:
- a cleaning composition which consists of water and an effective amount of a hypochlorite salt and an alkali metal hydroxide,
- wherein the weight concentration ratio of the alkali metal hydroxide over the hypochlorite salt is no less than 1:12.5.
A method for reducing the damaging effect of a hypochlorite salt-containing solution on a soft fabric article, comprising:
- modifying a hypochlorite salt-containing solution by adding an alkali metal hydroxide to the solution, forming a cleaning composition for use in cleaning a stain from a soft fabric article,
- wherein said hypochlorite salt-containing solution consists of a hypochlorite salt or an admixture of hypochlorite salt and an alkali metal hydroxide solution, and
- wherein the pH of the cleaning composition is at least 11.8,
- whereby the cleaning composition consists of a hypochlorite salt, the alkali metal hydroxide, and water.
A bleach product consisting of:
- a hypochlorite salt-containing solution admixed with an alkali metal hydroxide,
- wherein the pH of the admixture solution is at least 11.8,
- whereby the admixture solution consists of a hypochlorite salt, an alkali metal hydroxide and water.
A bleach product consisting of:
- a first compartment containing a solution consisting of sodium hypochlorite and water;
- and
- a second compartment containing a solution consisting of sodium hydroxide.
Dependencies are inferred from the claim text.