Showa Denko completed an expansion of its capacity to produce n-propyl acetate (NPAC), which is used in solvents for ink for special gravure printing. NPAC is a solvent mainly used for ink for special gravure printing on packaging materials for food. So far, toluene and methyl ethyl ketone (MEK) are mainly used as solvents for the gravure printing ink. However, demand for NPAC – an acetate-based solvent – is increasing as their safe and easy-to-use substitute, due to the revision of the Air P...