... SPT 510, SPT 255 print head Physical Parameters: Color range:C, M, Y, K, LM, LCSurface Tension:25~35 dynes/cmViscosity ... Ink, Digital Printing Ink, Mild Solvent Ink, Eco-solvent Ink, Eco-solvent base ink, Inkjet Ink, Inkjet Printing Ink, Printer Ink, Solvent Based Ink, Pigment Ink, Digital Ink, Solvent Based Inkjet Ink ...