Speedball Textile Screen Print Ink is fantastic for printed banners, T-shirts, ties, canvas tote bags and a variety of synthetic fabrics, excluding nylon. Opaque colors are especially suited for darker fabrics and papers; fluorescent colors glow under black light.ÿThis ink is water-soluble during the printing cycle so it cleans up easily with just soap and water. Colors are brilliant and permanent for long-wearing use. After it is printed on fabric and then set with an iron, the ink becomes totally safe for machine washing, as well as dry cleaning. Inks contain no solvents and have low odor. AP Seal, non-toxic. Speedball Textile Screen Print Ink is fantastic for printed banners, T-shirts, ties, canvas tote bags and a variety of synthetic fabrics, excluding nylon. Opaque colors are especially suited for darker fabrics and papers; fluorescent colors glow under black light.ÿThis ink is water-soluble during the printing cycle so it cleans up easily with just soap and water. Colors are brilliant and permanent for long-wearing use. After it is printed on fabric and then set with an iron, the ink becomes totally safe for machine washing, as well as dry cleaning. Inks contain no solvents and have low odor. AP Seal, non-toxic.