PAPERmaking! Vol2 Nr1 2016

PAPERmaking! FROM THE PUBLISHERS OF PAPER TECHNOLOGY Volume 2, Number 1, 2016

PACKAGING TECHNOLOGY Silver-nanoparticle-impregnated cellulose nanofiber coating for packaging paper, Elahe Amini et al , Cellulose , 23 (1). In this study, antimicrobial packaging was prepared by mixing colloidal silver nanoparticles with cellulose nanofibre (CNF) and depositing this hybrid coating (CNF/Ag) as a layer on different paper substrates. Although the coating coverage was influenced by paper surface characteristics and coat weights, almost all properties (except water absorption of greaseproof paper) including the water vapour transmission rate, oil resistance, and tensile strength of the CNF/Ag-coated papers, were improved in comparison with uncoated papers. Effect of Pallet Deckboard Stiffness on Corrugated Box Compression Strength, Matthew Baker et al , Packaging Technology and Science , 29 (3). The packaging industry has long considered pallets to be rigid structures. However, in a unit load, the weight of the product produces compressive forces that are distributed across the pallet causing the top deckboards to deflect. Corrugated paperboard boxes are highly susceptible to changing support conditions; therefore, the deckboard deflection directly impacts the vertical compression strength of the box. Therefore, the objective of this study is to evaluate the effect of pallet deckboard stiffness on the vertical compression strength and deflection of corrugated paperboard boxes. Strategies to improve the mechanical strength and water resistance of agar films for food packaging applications, Ana M.M. Sousa & Maria P. Gonçalves, Carbohydrate Polymers , 132. Agar films possess several properties adequate for food packaging applications. In this work, native and alkali-modified agars obtained from sustainably grown seaweeds were mixed with locust bean gum (LBG) to make ‘knife - coated’ films with fixed final concentration (1wt%) and variable agar/LBG ratios. The findings can help reduce the cost-production of agar packaging films; moreover, the controlled cultivation of seaweeds can provide continuous and reliable feedstock for transformation industries. Preparation of the CNC/Ag/beeswax composites for enhancing antibacterial and water resistance properties of paper, Kai Liu et al , Carbohydrate Polymers , 142. An effective method of preparing composites containing inorganic (Ag) and organic (beeswax) particles was established in this study. When applied onto paper surface by coating, the CNC/Ag/beeswax composites can impact paper with antibacterial property and improved water resistance. Microcrystalline-cellulose and polypropylene based composite: A simple, selective and effective material for microwavable packaging, S. Ummartyotin & C. Pechyen, Carbohydrate Polymers , 142. Cellulose based composite was successfully designed as active packaging with additional feature of microwavable properties. Small amount of cellulose with 10μm in diameter was integrated into polypropylene matrix. The use of maleic anhydride was employed as coupling agent. Morphological properties of cellulose based composite presented the good distribution and excellent uniformity. PAPER CHEMISTRY Novel paper sizing agents based on renewables. Part 8: on the binding behavior of reactive sizing agents — the question of covalent versus adsorptive binding, Elisabeth Lackinger et al , Cellulose , 23 (1). The binding mechanisms of two reactive sizing agents, alkenyl succinic anhydride (ASA) and maleated sunflower oil high-oleic (MSOHO), with cellulose were studied. While ASA is produced from olefins out of fossil resources, MSOHO is a green sizing agent based on renewable plant materials.

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Technical Abstracts

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