Carbonless copy paper, referred to as carbonless paper, is also called pressure-sensitive paper. The full English name is "Carbonless copy paper", or "CCP" for short. Carbonless paper can be divided into two types: coupled color development and self-developed color development in terms of product structure. There are three types of carbon-free paper for coupled color development: upper, middle and lower papers. The backs of the upper and middle papers are coated with CB coating, and the fronts of the middle and lower papers are coated with CF coating. The main component of CB coating is The main components of CF coating are microcapsules containing color-developing agent dyes and protective spacers. The main components of CF coating are color developers, fillers and other substances.

The basic coloring principle of coupled color-developing carbonless copy paper is that under the pressure of writing or printing, the CB coating microcapsules of the upper layer of paper (CB or CFB paper) are broken, the coloring agent overflows with the oil solvent, and the oil body is partially transferred to the CF coating of the next layer of paper (CFB or CF paper). The oil-soluble coloring agent dye reacts chemically with the color developer in the CF coating, and the unique color of the coloring agent appears at the copy position of the CF coating.

The self-coloring carbonless paper has microcapsules and developer in the same coating. It can be easily covered with other ordinary thin paper, and writing can be copied on the self-coloring paper. It is more convenient and at the same time, There are also more sensitive problems, and the pressure control requirements during the printing process are relatively high.

Application of Carbonless Paper/NCR Paper

Carbonless paper is Widely used in offices, commerce, education and other fields due to its clear, durable and rewritable characteristics.

It is well use for invoices, bills, bank statements, business lists, receipt rolls and ATM transaction records. It is also nice used in quality control sheets, store records and various reports.