A paper that is most often used for multiple part forms. It contains a chemical coating on the front side (designated as CF) or on the back side (designated as CB), or on both sides (designated as CFB). When a handwritten or machine impression occurs on the first sheet of multiple parts, the impression transfers from one page or ply to the next due to the bursting of tiny microcapsules in the chemical coating used to release a darkened copy of the impression occuring on the first sheet.