Patent ID: 7687450

Claim:
A method for removing contaminants from carpet, said method comprising: (a) saturating the carpet at the location of a contaminant with an aqueous cleaning composition comprising: (i) at least one antimicrobial compound selected from the group consisting of silver zirconium phosphate, zinc oxide, polyhexamethylene biguanide, imidazolidinyl urea, cationic quaternary ammonium salt, sodium sorbate, potassium sorbate, sorbic acid, grapefruit seed extract and a formaldehyde donating antimicrobial compound; (ii) at least one enzyme inhibitor selected from the group consisting of aldehydes, wherein said aldehydes are selected from the group consisting of glutaraldehydes, p-hydroxybenzaldehyde, phthalic dicarboxyaldehyde, and benzaldehyde; salts containing ions selected from the group consisting of silver, zinc, and copper; complexes containing ions selected from the group consisting of silver, zinc, and copper; boric acid and salts of boric acid, citric acid and salts of citric acid; sorbic acid and salts of sorbic acid; organic bromo-nitro compounds; phosphonamide compounds; and quinones, wherein said enzyme inhibitor is a compound different from said antimicrobial compound; and (iii) at least one odor-reacting compound that reacts with amine and thiol, selected from the group consisting of aldehydes, formaldehyde-donating compounds, ketones, and oxidizing agents, wherein said odor-reacting compound is substantially odor-free, and is a compound different from said antimicrobial compound and said enzyme inhibitor; and (b) blotting the contaminant with an absorbent material.