Exceptional cost-effectiveness. Consistently even ink transfer from the ink fountain to the roller frame is just one of the outstanding features of ink duct foils from Heidelberg®. Dimensionally stable edges facilitate foil fitting to ensure short makeready times. Saphira Ink Duct Foil The standard ink duct foil for conventional process/spot inks and gloss coatings is Saphira® Ink Duct Foil. It boasts impressive quality, secures reliable production, and offers an excellent price-performance ratio. Benefits: Manufactured to the precise specifications of Heidelberg • Uniform ink transfer and excellent performance • Easy fitting thanks to dimensionally stable foil edges