Starch measurement

Continuous measurement of the concentration of an aqueous starch solution in the manufacture of corrugated base paper

In the DS Smith paper mill in Witzenhausen, raw paper with a basis weight between 115 and 190 g/m² is produced on a gap former Fourdrinier paper machine for further processing into corrugated board. In the production of raw corrugated cardboard, the individual paper layers (Fourdrinier and former side) are chewed up. In Witzenhausen, starch from corn, potatoes or wheat is used for this. To prepare the starch solution, starch is mixed with water as a powder and then boiled while stirring. Three colours and various retention agents are then mixed into the fibre suspension. Different starch concentrations are used for the production of different paper qualities.

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