Natural fibre products
- Printing and writing papers
- Paperboards
- Tissue
- Nonwovens
- Speciality papers
- Production of paper and board
- Stock and water systems
- Web forming
- Wet pressing
- Drying of natural fibre products
- Surface sizing
- Pigment coating
- Finishing
- Converting of paper and board
- Papermaking chemistry
- Paper physics
- Printing
Control of microorganisms Microorganisms are present in every paper and board machine, every day. Their entry in the wet-end is inevitable because the machines are open aequous processes receiving contaminants from fresh water, air and non-sterile raw materials. The process provides good conditions for multiplication of microorganisms, because temperature and pH are typically favourable for
Authors & references
Author:
Marko Kolari, Kemira Oyj
References:
- Flemming H-C, Meier M and T Schild (2013). Mini-review: microbial problems in paper production. Biofouling: The Journal of Bioadhesion and Biofilm Research, DOI:10.1080/08927014.2013.798865
- Paulus W (Ed.) 2005. Directory of microbicides for the protection of materials. Springer, Dordrecht, Netherlands. 787 p. ISBN 1-4020-2817-2.
- Kolari, M. and Rintala, J. 2017. Better hygiene in food-packaging board at reduced risk of rejected tonnage and machine corrosion. PaperAge Vol 133 (1): 20–23.
- Ekman, J., Hietaniemi, M., Kolari, M., Nelson, M. and Keegan, K. 2018. Novel Starch Saving Program Improves Sustainability in Board Manufacturing through the Reuse of Recycled Fiber Starch. World Pulp & Paper, May 2018.
Videos
Exercises
This page has been updated 15.11.2020