Abstract
A way of thinking changes in earth environmental safeguard type for all things with fear to cause air pollution, environmental pollution from a way of thinking that environmental management in printing should remove simply a dangerous harmful thing. On the basis of this background, environmental friendly inks such as AF ink, Soy ink, non VOC ink, Hybrid ink have been developed. It is necessary to give a equal print effect and printability to conventional ink as well as environmental care, and new development and improvement of components are necessary. In concrete, it is considered the resinous denaturation for keeping dissolution property as for the use for aroma free solvent, and the addition of polarity material to prevent roller shrinkage and change of components to maintain drying property. Now non VOC ink and Hybrid ink are developed as a latest environmental friendly ink, but further study for improvement is expected.