u00b0 c the heat setting step is accomplished at process speeds compatible with the entangling and patterning process such that the drying and heat setting step would be in a continuous process with the rest of the manufacturing steps the heat setting step acts to enhance the mechanical stability of the preferred spatial arrangement of the entangled fibers in the web thereby providing the high degree of durability required for the final commercial dyeing process after heat setting the resultant fabrics exhibit sufficient durability to withstand commercial dye house processing such as exemplified by jet dyeing such as in a jet dyeing apparatus a jet dyeing apparatus can be configured in accordance with known arrangements such as exemplified by u s pat no 3 966 406 hereby incorporated by reference in general jet dye processing consists of a high temperature piece dyeing machine that circulates the dye liquor through a venturi jet thus imparting a driving force to move the fabric through the process speeds of 80 to 300 meters per minute are standard for this type of operation the fabric is totally immersed in the dye bath which is contained in the closed dye vessel such that the process is discontinuous from the rest of the manufacturing process described for the present invention an imaged nonwoven fabric having.