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 86
- Downloads 0
Lactic Acid Synthesis by Fungus Rhizopus oryzae F-1030 on Growth Media Based on Sulphite Liquors
Lactic acid is an industrially important product with an expanding consumer market. However, lactic acid production and isolation methods used at the present time are not effective enough, lead to the formation of large...
Fir Reproduction Technology for Harvesting Coniferous Boughs
The article considers the use of innovative technologies in logging industry. Manufacture of products “for health” can turn into a substantial profit if one approaches the business competently and chooses a low-competiti...
Coarse Woody Debris in Primary and Secondary Middle Taiga Spruce Forests
Restoration of the pool of coarse woody debris after disturbances is one of the mechanisms for maintaining the stability of forest biogeocenoses. The studies of coarse woody debris have been carried out in the âVepssky...
Introduced Species of Cedar and Larch in the Climate Conditions of the Kola Arctic Region
The purpose of this study was to investigate the history of growth of the introduced species Pinus sibirica Du Tour and Larix sibirica Ledeb. in the Murmansk region and their state in natural areas of preferential protec...
Edge Effect in Pine Stands in the Northern Taiga
The studies are carried out in pine stands situated on the forest boundaries, which are in between the open space locations and forest growth areas. The investigations were made on the territory of the Kholmogorskiy and...