Carbon black resin ground composition, carbon black resin composition, and offset printing ink using the same

摘要

A carbon black resin ground composition obtainable by adding a printing ink resin that is solid at room temperature to a carbon black which has not undergone oxidation treatment and has a dibutyl phthalate oil absorption amount of 60 to 105 ml/100 g, and then conducting dry grinding, as well as a carbon black resin composition and an offset printing ink obtainable using the same.