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Moisture Control

All our paper mills conduct online infrared scanning to ensure we effectively manage reel moisture variation levels.

Automated corrective actions in the online infrared scanning prevent parameters from exceeding defined limits. All DS Smith customer reels are classified and monitored via a dedicated IT application.

Moisture evaluation on the customer reel level is based on the guidelines by CEPI and agreed with the FEFCO customer confederation.

  • Average moisture content (%)
  • Peak-to-peak max difference CD moisture variation (full width customer reel, 15 cm box measuring resolution)
  • Peak-to-peak max difference MD moisture variation (full width customer reel, 15 cm box measuring resolution)
  • Peak-to-peak max difference total moisture variation (full width customer reel, 15 cm box measuring resolution)

A calculated variation parameter – normalised MD variation – is used to compare different paper machine characteristics such as scanner speed and machine speed.

Together, these monitoring and evaluation procedures ensure that DS Smith effectively manages reel moisture variation levels. In fact, most of our products outperform the CEPI guidelines, providing customers with consistency and reliability.