Cotton-gentle hypochlorite bleach
AssigneeLHTaylor Associates
InventorLawnie Henderson Taylor
Life of this patent
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Abstract
Methodologies and equipment for using a hypochlorite solution 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 hypchlorite salt in the hypochlorite solution is no less than 1:12.5. The hypochlorite solution may contain at least 0.2% by weight of sodium hydroxide and/or have a pH of at least 11.8.
Claims33
1-130. (canceled)
A method for reducing the damaging effect of a hypochlorite-containing solution on a soft fabric article, the method comprising:
- combining an amount of sodium hydroxide and an amount of sodium hypochlorite in a solution to achieve a weight concentration ratio of the sodium hydroxide to the sodium hypochlorite in the solution of no less than 1:30 and to reduce at least one damaging effect of the solution on the soft fabric article when the article is directly contacted by the solution.
A method for reducing the damaging effect of a hypochlorite-containing solution on a soft fabric article, the method comprising:
- combining an amount of sodium hydroxide and an amount of sodium hypochlorite in a solution to achieve a weight concentration ratio of the sodium hydroxide to the sodium hypochlorite in the solution of about 1:5 to about 5:1 and to reduce at least one damaging effect of the solution on the soft fabric article when the article is directly contacted by the solution for at least one minute.
A method for removing a stain from a soft fabric article, the method comprising:
- combining an amount of sodium hydroxide and an amount of sodium hypochlorite in a solution to achieve a weight concentration ratio of the sodium hydroxide to the sodium hypochlorite in the solution of about 1:5 to about 5:1 and to reduce at least one damaging effect of the solution on the soft fabric article when the article is directly contacted by the solution, and
- instructing a user of the solution to remove stains from the soft fabric article by directly contacting the article with the solution for at least one minute to remove the stain.
A method for reducing the damaging effect of a hypochlorite-containing solution on a soft fabric article, the method comprising:
- adding an amount of sodium hydroxide to a solution containing sodium hypochlorite to achieve a weight concentration ratio of the sodium hydroxide to the sodium hypochlorite in the solution of no less than 1:12.5 and to reduce at least one damaging effect of the solution on the soft fabric article when the article is directly contacted by the solution.
Dependencies are inferred from the claim text.