Influence of corrugated production processes on the strength of cardboard from neutral sulfite semichemical during its cyclic use
https://doi.org/10.21266/2079-4304.2024.248.329-338
Abstract
A widely used first stuff for fluting and linerboard is neutral-sulfite semichemical obtained from hardwood. The paper studies the effect of high temperature on the strength properties of neutral sulfite semichemical board, and the morphological characteristics of the fibers in the board during its multicycle use in the process of corrugated production. It is shown that as a result of thermal influence on cardboard after 3 cycles of processing the fraction with shorter fibers (0,4–0,8 mm) becomes dominant, its increase was 13%, instead of fraction with fibers 0,8–1,2 mm, decrease of which was 7,6%. It was found that as a result of six cycles of processing at high temperatures simulating the corrugation process, the strength properties of paperboard made of neutral-sulfite semichemical decreased to a lesser extent than those of paperboard made of unbleached softwood sulfate pulp. This suggests that the lignin-carbohydrate complex of neutral sulfite semi-cellulose prevents intensive thermal destruction of cellulose. Therefore, the thermoplastic properties of lignin can be used without the danger of severe degradation of cellulose fibers and reduction of strength properties of cardboard, which will increase the number of cardboard processing cycles. In general, neutral sulfite semichemical pulp has a higher potential for recycling in corrugated production than unbleached sulfate softwood pulp of normal yield.
About the Authors
P. M. Keizer
St. Petersburg State University of Industrial Technologies and Design
Russian Federation
Russian Federation
Keizer Pavel M. – PhD (Technical), Associate Professor of the Department of Paper and Cardboard Technology of the Higher School of Technology and Energy,
198095. Ivan Chernykh str. 4. St. Petersburg
E. I. Simonova
St. Petersburg State University of Industrial Technologies and Design
Russian Federation
Russian Federation
Simonova Elena I. – Associate Professor of the Department of Paper and Cardboard Technology of the Higher School of Technology and Energy, Candidate of Technical Sciences,
198095. Ivan Chernykh str. 4. St. Petersburg
A. A. Bystrova
St. Petersburg State University of Industrial Technologies and Design
Russian Federation
Russian Federation
Bystrova Alena A. – Deputy Director of the KRONA Institute, postgraduate student of the Department of Paper and Cardboard Technology of the Higher School of Technology and Energy,
198095. Ivan Chernykh str. 4. St. Petersburg
E. G. Smirnova
St. Petersburg State University of Industrial Technologies and Design
Russian Federation
Russian Federation
Smirnova Ekaterina G. – DSc (Technical), Head of the Department of Paper and Cardboard Technology of the Higher School of Technology and Energy, Associate Professor,
198095. Ivan Chernykh str. 4. St. Petersburg
References
1. Smolin A.S. Modern trends in the development of corrugated cardboard technology. Problems of mechanics of cellulose and paper materials: Proceedings of the V International Scientific and Technical Conference in memory of Professor V.I. Komarov, Arkhangelsk, September 11–14, 2019. Arkhangelsk: Northern (Arctic) Federal University named after M.V. Lomonosov, 2019, pp. 39–46. ISBN 978-5- 6042336-6-5. EDN HEJVXB. (In Russ.)
2. Keizer P.M., Bystrova A.A., Smirnova E.G. Influence of corrugated production processes on the strength of cardboard and morphological characteristics of fibers under cyclic use. Izvestia Sankt-Peterburgskoj Lesotehniceskoj Akademii, 2022, iss. 241, pp. 268–279. (In Russ.)
Review
For citations:
Keizer P.M., Simonova E.I., Bystrova A.A., Smirnova E.G. Influence of corrugated production processes on the strength of cardboard from neutral sulfite semichemical during its cyclic use. Izvestia Sankt-Peterburgskoj lesotehniceskoj akademii. 2024;(248):329-338. (In Russ.) https://doi.org/10.21266/2079-4304.2024.248.329-338
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