Patent ID: 6852134

Claim:
A method for treating an article having a textile surface with a stainblocker composition, the textile surface being formed from at least two types of dyeable nylon yarns, wherein at least one type of nylon yarn is dyeable by an acid dyestuff and at least one other type of nylon yarn is dyeable by a cationic dyestuff, the method comprising the sequential steps of: (a) dyeing the textile surface of the article with an acid dyestuff and a cationic dyestuff; (b) passing the textile surface of the article through a bath containing a stainblocker composition and a surfactant, the bath having a temperature from above seventy to ninety-five degrees Celsius (70 to 95° C.), the textile surface remaining in the bath for about five (5) to about thirty (30) seconds; (c) removing excess water from the textile surface of the article; (d) passing the article through an ambient temperature zone; and (e) rinsing the textile surface of the article with water, and thereafter suctioning and drying the same, such that substantially the entire textile surface of the article is coated with a stainblocker composition whereby the textile surface has a stain resistance of 9 or higher on the AATCC Red 40 Stain Scale.