PAPER making! g! FROM THE PUBLISHERS OF PAPER TECHNOLOGY INTERNATIONAL ® Volume 11, Number 3, 2025
material structure of China’s papermaking industry. However, the specific impact of this structural change on the papermaking industry has not yet been systematically and quantitatively studied. This study developed a multiscale life-cycle carbon emission accounting framework to quantify the evolution of carbon emissions in the papermaking industry under the impact of the ban. The results show that since the ban was implemented, the life-cycle carbon emissions of various types of paper mainly using waste paper as raw materials have increased by 1.98%–3.57% compared with the preban period, and the production cost has risen by nearly 20%. Further research has found that the selection of raw materials has a significant impact on the carbon emissions of paper production. The life-cycle carbon emissions of paper production using primary fiber (wood fiber/nonwood fiber) are about 1.5 times that of using waste paper fiber. Therefore, in the short term, wood fibers can be used to replace imported waste paper, and in combination with technologies such as biomass reuse process, it is expected that carbon emissions can be reduced by more than 15%. In the long run, the papermaking industry needs to further optimize the production process and improve the efficiency of resource utilization, which is expected to reduce carbon emissions by 10%–25%. It is also necessary to improve the domestic waste paper recycling and utilization system simultaneously and build a more efficient circular economy system, so as to promote the sustainable development. FILLERS “Calcium carbonate treated with carboxymethylated xylan as a filler in papermaking”, Onur Unlu & Ayse Aytac, Cellulose , 32, 10307–10342, (2025). Mineral-based fillers are the second preferred material in paper production, following cellulose as the main material because their use improves some paper’s physical and optical properties, energy needed cost reduction at the dryer of paper production, and decreases cellulose consumption cost due to their being cheaper than cellulose in papermaking. Nonetheless, mineral-based filler particles are much smaller than cellulosic fibers. Filler particles in the paper matrix can inhibit hydrogen bonds between pulp cellulosic fibers, reducing some physical properties of paper. To overcome these problems, many studies have been carried out, focusing on improving the retention of mineral-based fillers on cellulosic fibers and making them compatible with pulp fibers. In this study, carboxymethylated xylan (CMX) was produced by the carboxymethylation reaction of xylan (XS), and it was used to modify the surface of precipitated calcium carbonate (PCC) filler for use in paper pulp. The physical and optical properties of paper handsheets filled with modified PCC (CMX-PCC) were examined, and the results showed that the properties of paper handsheets were improved by comparing PCC usage. These findings were also confirmed by Fourier Transform Infrared Spectroscopy (FT-IR), Thermogravimetric Analysis (TGA), Nuclear Magnetic Resonance Spectroscopy (NMR), X-ray Diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), and Field-Emission Scanning Electron Microscopy (FE-SEM) and Energy Dispersive X-ray (EDX) techniques. This study proposes a novel approach to PCC filler modification, suggesting a promising alternative for papermaking applications. MOULDED PULP “Development of Molded Fibers-Based Packaging from Sugarcane Bagasse for Sustainable Alternatives to Single-Use Plastics”, Roman Sarder, Mrittika Debnath, Cori Sutton, Kardam, Saurabh Kumar Mani, Lucian Karthik Ananth, & Lokendra Pal, BioResources , 2025, 20(3), p7147. Molded fiber-based packaging has recently surged in popularity as replacement for single-use plastics (SUPs). However, key challenges include the lack of low-cost, high-yield sustainable fibers that provide adequate strength and moldability while reducing drying energy consumption, which is essential for widespread adoption. Therefore, this study explores high-yield, sustainable fiber development for
Technical Abstracts
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