The greater part of all stamps used in Europe and many other parts in the world are self-inking stamps. This modern kind of stamp is equipped with an integrated pad which is automatically provided with ink with every stamping process. COLOP is one of the worldwide leading producer of self-inkers and these products are also the most important ones for COLOP.

The number of patents which COLOP has acquired, can be considered as a chronicle of innovative product development, which has created the unmistakable profile of this company within the world-wide stamp business.