Influence of Drying Temperature on Paper Properties Made of Sulfate-Bleached Softwood and Hardwood Pulps
Journal Title: Lesnoy Zhurnal (Russian Forestry Journal) - Year 2023, Vol 3, Issue 3
Abstract
Most paper mills in the Russian Federation consume around 40 % more electrical power than they actually require. The reasons are a low level of technical, scientific, and proficient assistance. Moreover, the produced goods have non-competitive consumption characteristics. The urgent current measures in this matter contain constructional and technological optimization, including drying temperature modes. The drying section of a paper machine is the most energy-consuming, while it significantly affects the mechanical strength and supplementary properties of the resulting paper goods with their structural and dimensional characteristics. Drying the paper web takes 72â77 % of the total energy of the paper machine. Therefore, the purpose of this study is to analyze the influence of the temperatures of the drying process on the strength and structural-dimensional properties of the paper, with the perspective for further application of the results in the practice of industrial companies and additional scientific investigation. The presented results show the influence of pulp type, beating degree, mass of 1 m2, and drying temperature on the strength and structural-dimensional properties of laboratory samples. Within the investigational process, laboratory samples from sulphate-bleached softwood and hardwood pulp were created and tested. The weights of the samples varied from 60 to 120 g/m2, and the beating degrees ranged from 20 to 50 °SR. The drying temperature extended from 80 to 140 °C. The analysis of the acquired paper samples revealed that the drying temperatures had a considerable impact on the strength, structure, and dimensional qualities of the material. Namely, while sulfate-bleached softwood and hardwood pulp types were used as a raw material, increasing the drying temperature from 80 to 140 °C had the greatest effect on the structural-dimensional properties of the paper made from a pulp with a higher beating degree and the greatest effect on the strength properties of the paper made from a pulp with a lower beating degree. For citation: Prokhorov D.A., Dubovy V.K. Influence of Drying Temperature on Paper Properties Made of Sulfate-Bleached Softwood and Hardwood Pulps. Lesnoy Zhurnal = Russian Forestry Journal, 2023, no. 3, pp. 173â184. (In Russ.). https://doi.org/10.37482/0536-1036-2023-3-173-184
Authors and Affiliations
Daniil A. Prokhorov,Vladimir K. Dubovy,
Keywords
Related Articles
- EP ID EP717607
- DOI 10.37482/0536-1036-2023-3-173-184
- Views 68
- Downloads 0
Dynamics of the Spruce Population Structure Under the Canopy of Birch in Coniferous-Deciduous and Southern Taiga Forests of European Russia
A comparative study of a restoration process is conducted in combinational forests of birch and spruce, as a population under the canopy, in the conditions of coniferousdeciduous or subboreal (Moscow region, Mozhayskiy d...
Distribution of English Oak (Quercus robur L.) and Norway Maple (Acer platanoides L.) with Height in a Shelterbelt
The organizing framework of adaptive landscape agriculture is protective afforestation. The study of the shelterbelt state is necessary for detection of their protective height due to the dramatically changing climatic c...
The Results of the Study of the Relationship between Viscosity and Mechanical Strength of Bleached Hardwood Kraft Pulp
An assessment has been made of the relationship between viscosity and mechanical strength of industrial samples of bleached hardwood kraft pulp. To produce this type of semi-finished product, birch and aspen wood has bee...
Assessment of Response to Climate Change in Experiments with the Origins of Picea abies (L.) Karst. × P. obovata (Ledeb.) in the North Russian Plain
The article studies the intraspecific response of European spruce (Picea abies (L.) Karst. × P. obovata (Ledeb.)) to climatic changes on the basis of data on the growth of 15 provenances in 31-year-old provenance plot of...
Flexibility Justification of a Raft Made of Raft Units
In order to provide accident free timber rafting on small and medium-sized rivers, it is necessary to consider in detail the features of ensuring the raft flexibility with all the necessary calculations. The research aim...