This engraving process is currently carried out using two different techniques: the mechanical process and the wet-chemical process.
And although both have been established in the international production for decades, they have deficiencies the expert wants to avoid in the future. On the one hand mechanical engraving is followed by a hardening process which always involves the risk of hardening distortion. The most common wet chemical process, on the other hand, requires the use of acid, which always involves certain risks. SAUERESSIG UNGRICHT therefore aspires to evolve a process that avoids the risk of hardening distortion, makes the use of aggressive acids unnecessary and eliminates human error. In close cooperation with a manufacturer of laser engraving machines, the experts have now succeeded in developing a new laser unit.
This allows the desired structure to be applied directly on the hardened roller surface of the embossing roller and therefore reduces possible losses of quality. With the further development of this innovative technology SAUERESSIG UNGRICHT wants to make a significant contribution to quality assurance and prospectively set new standards on the international market.