Carbonless Copy Paper (CCP for short) is an innovative type of copy paper. Its coloring principle is based on the action of external force, which causes the force - sensitive pigment and oil solution in the micro - capsules to overflow and react with the color developer to achieve copying. It doesn't require an additional carbon paper. Copying can be easily completed by writing or printing, with 2 - 6 copies for hand - writing and 2 - 10 copies for electric printing, greatly improving efficiency. Moreover, it comes in a wide range of colors for easy classification and management. The paper has excellent quality, a smooth surface, is durable, and the text and images can be preserved for more than 15 years after coloring. It is widely used in multi - part forms, invoices and other documents.