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Influence of base paper on the barrier properties of chitosan-coated papers
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre.
2006 (English)In: Nordic Pulp and Paper Research Journal 21 (5) pp 685-689Article in journal (Refereed)
Abstract [en]

A kraft paper and three greaseproof papers with different porosities were coated with chitosan to see whether the cheaper kraft paper can be used as a base paper for this coating and whether the final coated paper meets the demand for a low oxygen transmission rate. The coating was performed on a bench scale and two coat weights were applied: 3.4 and 6.0 g/m2. Besides the oxygen transmission rate, the coated material was also tested with respect to air permeance, grease resistance and water vapour transmission rate. The results showed that the coated kraft papers did not meet the demand for a low oxygen transmission rate. A lower oxygen transmission rate was obtained on the greaseproof paper with the lowest porosity, where the coating stayed on the surface and formed a continuous film without cracks. The chitosan coating gave a high grease resistance on the two densest greaseproof papers. Chitosan provided no barrier against water vapour transmission

Place, publisher, year, edition, pages
2006.
National Category
Chemical Engineering
Research subject
Chemical Engineering
Identifiers
URN: urn:nbn:se:kau:diva-20310OAI: oai:DiVA.org:kau-20310DiVA: diva2:593968
Available from: 2013-01-21 Created: 2013-01-21 Last updated: 2013-01-21

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