PAPERmaking! FROM THE PUBLISHERS OF PAPER TECHNOLOGY Volume 3, Number 2, 2017
Moulded Pulp Manufacturing: Overview and Prospects for the Process Technology, Mattia Didone et al , Packaging Technology and Science , 30 (6). Eco-friendly packaging such as moulded pulp products have gained commercial importance in the recent years. However, it remains a greatly under-researched area, and there is an arising need to consolidate the best practices from research and industry in order to increase its implementation. The goal of this paper is to give an overview of the main aspects involved in the manufacture of moulded pulp products. This includes a classification of moulded pulp products, historical and current applications, production processes, materials, mechanical properties and environmental sustainability. Moreover, based on the latest research in the field, an innovative drying technique that utilizes concepts derived from impulse drying is presented, and the implementation of this process technology is discussed. Experimental investigation of novel curdlan/chitosan coatings on packaging paper, Urška Vrabič Brodnjak, Progre ss in Organic Coatings, 112. In the research, paper was successfully coated with curdlan and chitosan (CR/CH) coating solutions at different ratios (CR/CH ≈ 10:0, 8:2, 6:4, 5:5, 2:8, 4:6, 0:10% w/w). The novelty of this paper is in the use of combination of curdlan and chitosan, which led to a positive effect on the mechanical and water barrier properties. The resulting blend curdlan/chitosan coatings exhibited good water barrier and mechanical properties and could be used in many fields. PAPERMAKING The performance of chitosan with bentonite microparticles as wet-end additive system for paper reinforcement, Mehdi Rahmaninia et al , Carbohydrate Polymers , 179. In this research, the effect of bentonite micro-particles on the performance of chitosan as a new additive system for improving the dry strengths of acidic papermaking was studied. The application of bentonite in combination with chitosan had a significant impact on chitosan performance in mechanical properties. The best results were obtained with 0.3% bentonite consumption. Visual formation ranking had a proper correlation with this obtained results. Synergies between cellulose nanofibers and retention additives to improve recycled paper properties and the drainage process, Noemi Merayo et al , Cellulose , 24 (7). Cellulose nanofibers (CNF) have increasing relevance in different applications, for instance, in the paper industry as a sustainable strength additive. This application is especially beneficial for recycled paper, which reaches higher product quality despite its limitations. CNF change paper properties and also can affect the production process, especially the drainage stage, in which retention additives (RA) are commonly used to promote interaction of cellulose fibres. However, these interactions vary depending on the type and flocculation mechanism of RA. This research is aimed at establishing possible synergies between CNF and RA to improve paper strength, while avoiding negative effects on the drainage process. Effect of enzyme beating on grinding method for microfibrillated cellulose preparation as a paper strength enhancer, Kang-Jae Kim et al , Cellulose , 24 (8). Hardwood bleached Kraft pulp was treated with an endoglucanase prior to Valley beating. The Valley-beaten pulp slurry was further ground with a particle grinder in order to evaluate the effect of enzyme beating on preparation of microfibrillated cellulose (MFC). The time required to make 100 mL Canadian Standard Freeness pulp slurry was greatly reduced by enzyme pre-treatment. Thus, the mechanical energy for MFC manufacturing can be greatly reduced with enzyme beating.
Page 6 of 12
Technical Abstracts
Made with FlippingBook - Online catalogs