UltraChrome K3 formulation is used in the genuine matte black Epson T6118 ink cartridge, making it suitable for producing high quality documents and photographs. The Epson C13T611800 matte black ink particles are coated with resin for smoothness and resistance to metamerism. Many types of speciality media and art paper are compatible with the matte black Epson T6118 110ml ink cartridge. With the Epson C13T611800 matte black ink, shadows and greyscale detail look more distinctive so your images have a bigger impact. The high density pigment of the Epson C13T611800 matte black ink also makes print outs last longer, especially on matte papers.