Double Coated Carbonless Copy CBF Paper 1.Green; 2.100% pure wood pulp; 3.Six joint coloration; 4.Easy for handwriting Double Coated Carbonless Copy CBF Paper 1. Brief Instruction Carbonless paper works in a fairly simple way. It consists of sheets of paper that are coated on the bottom and/or the top with or and/or a reactive. The back of the first sheet is coated with micro-encapsulated dye. ...