Our Mill is located in the valley of the small river named Kall in the hilly countryside south of the city of Dueren between Cologne and Aachen. Its history can be traced back to the 16th century when official documents mention the existence of a water driven mill for the first time.

The small mill served different purposes until 1903 when it was bought by Gustav Renker, an engineer of Swiss origin. He enlarged the site to a modern paper mill designed to produce mould made paper with four deckle edges on a cylinder mould machine. The production was successfully introduced to the European markets and export to the USA was started in the 1920´s. The registered trademark ZERKALL-BUETTEN (Zerkall Mould Made) became well known and is still representing the claim for some of the finest quality mould made paper.

Today, the fourth generation of the Renker family is running the mill which produces a complete range of mould made stationery items containing sheets, cards and envelopes as well as a large variety of mould made paper for fine art printing, printmaking, book art, watercolour and drawing.

It is for all these applications that we supply mould made paper in sheets ranging from 90 to 600 g/sqm in different colours and several finishes. Individual requirements can be achieved with special makings up to a maximum sheet size of 150 x 225 cm. The standard furnish is composed of a mix of cotton fibre and high alpha cellulose, while a number of grades are furnished with 100% cotton fibre. All grades are acid free, neutral sized, alkaline buffered with calcium carbonate, without optical brightener and non ageing (DIN ISO 9706, ANSI/NISO Z 39.48-1992).