A type of dye used on acrylic or on modified polyester or modified nylon yarn. Often used to achieve cross dyed effects: Cationic dyeable yarn is woven in a pattern with regular yarn in the same fabric. The pattern becomes visible by dyeing the fabric in 2 baths, one for each of the types of yarn. A type of fiber variant that takes deep and brilliant colors. When mixed or blended with conventional fibers various multi-color and cross-dye effects are possible in a fabric from one dye bath or treatment.