US Patent 7374808 Patterned bonded carpet and method

Color, pattern, design, and/or the like is applied by means of a jet dye process, or any other secondary or post pattern application process, including but not exclusively, silk screen printing, rotary printing, etc., to a bonded carpet, where the yarn in the carpet is all white (no dye applied) or light colored or where the yarn is pre-dyed with a single or multiple colors or where the yarn is treated chemically. The bonded carpet preferably has a low face weight and flat, short, dense, vertical cut pile.