Patent ID: 6533824
Filing Date: 2003-03-18
Classification: D06P,Y10S

Abstract:
A method for restoring an original color to a bleached region of nylon carpet, said method comprising the steps of:applying to the bleached region at least one primary color acid dye selected from the group consisting of the colors blue, red and yellow, until the original color is restored, selection of a primary color acid dye for each application being a function of the then current color of the bleached region, wherein if the bleached region has a white or yellow or orange hue, primary blue dye is applied thereto until either the color of the region is restored to the original color or the region acquires a noticeable blue or green or purple tinge; or if the bleached region has a blue or green hue, primary red dye is applied thereto until either the color of the region is restored to the original color or the region acquires a noticeable purple or lavender or orange hue; or if the bleached region has a purple or lavender hue, primary yellow dye is applied thereto until either the color of the region is restored to the original color or the region acquires a noticeable yellow or orange or green hue.