What is an NCR form?

NCR (no carbon required) or carbonless forms, like the name suggests, have eliminated the need for carbon paper between sheets to create multiple copies of the same form. The paper is chemically treated to transfer the impression from the first page to the subsequent pages with very little pressure. This works because the bottom side of carbonless NCR paper is coated with micro-encapsulated dye that breaks when pressed. The top of the susequent sheet is coated with clay that reacts with the dye to form a permanent mark. When the top sheet is written on, the pressure causes the micro-capsules to break and release the dye onto the page beneath it.