I would like to know of a compound that could be added to a polypropylene fiber extrusion that would enable me to acid dye the yarn or fiber.
Although polypropylene itself cannot be dyed once it's been extruded into fibers, acid-dyeable polypropylene has been createdOne way it's made is by adding quaternized amine groups during extrusionIt's more common to color the polypropylene by adding pigments before extrusion.
a product called jb weld sold at your local hardware
