iDye for Natural FabricsDyeing has never been easier than with iDye from Jacquard! iDye comes in a dissolvable packet, so thereare never any messy powders to handle: simply dissolve the packet in the dye bath or drop it in the washer,then add the fabric. iDye is a hot water dye that produces brilliant colors on any natural fabric and may beused on the stove-top or in the washing machine.iDye PolyiDye Poly is for synthetic fibers such as polyester and nylon. It will color almost anything synthetic, includingplastics and acrylics, buttons, frisbee discs, 3D printed objects, toys, dolls, wigs, urethane coatings and more!The dye comes in a dissolvable packet, so there are never any messy powders to handle: simply drop thepacket in a pot of water, add your fabric or objects and bring to a boil!