PAPER making! FROM THE PUBLISHERS OF PAPER TECHNOLOGY INTERNATIONAL Volume 6, Number 1, 2020
ascribed to the excellent performance of the added cationic additive (polyethyleneimine (PEI), alums) for trapping anionic trash via neutralization/flocculation effects. In addition, a binary cationic additive system (Al2(SO4)3-PEI) was proposed to study the improvement on the sizing performance. It was found that a desirable liquid repellence ability can be successfully achieved at a binary additive system containing 1.5% of Al2(SO4)3 and 0.2% of PEI, even when dosage of rosin sizing agent was reduced to 0.5%. The study put forwards a practical approach to improve the sizing performance, especially the liquid repellence ability of liquid packaging board when containing HYP. Fabricating bio-active packing material made from alkali-steam exploded agro-waste using natural colorants, V. K. Nathan et al, International Journal of Environmental Science and Technology, Vol.17 . In this paper, effect of alkali-steam explosion pre- treatment on various agro-waste raw materials was evaluated for enhancing the quality of recycled paper. The alkali-steam explosion had a minimum cellulose reduction in the case of sugarcane bagasse (3.8 ± 0.21) and arecanut fibers (4.5 ± 0.83%) and identified as a good fiber sources for paper making in terms of strength and final quality of recycled papers. X-ray diffraction pattern study exhibited that there was an enhanced intensity of cellulose content. Coloring on recycled paper with natural pigments could be used as a packing material with bactericidal activity. This forms the first report on the application of stable pigments for value addition in paper industry which increases the marketability of recycled paper. An analysis of the influence of hand hole and ventilation hole design on compressive strength of corrugated fiberboard boxes by an artificial neural network model, Tita Archaviboonyobul et al, Packaging Technology and Science, Vol.33(4-5) . This research aimed at developing a high Ǧ performing corrugated fiberboard box compression strength prediction model and to analyze the influences of ventilation and hand hole designs for these containers on the box compression test (BCT) by applying artificial neural network (ANN) modeling. The input variables considered in this study are composed of nine parameters including box dimension as well as shapes, sizes, positions, and locations of ventilations and hand holes of a regular slotted container (RSC, FEFCO 0201). Back propagation algorithms (BPNs) of ANN models were developed from 970 BCT testing data points (single wall boards, C flute, 205/112/205 g/m 2 ). Tested data was randomly broken into three groups for the model development as 80:10:10 for the training set, testing set, and validating set. According to the analysis performed, a BPN 9 Ǧ 13 Ǧ 1 model reflected the highest prediction performance with R 2 = 0.97. According to the analysis, BCT was significantly affected by the hand hole location followed by the geometrical dimensions of the box (height, length, and width) and the ventilation factors (shape, number, and location) in that order. Hand holes at the top flaps caused a lower BCT reduction compared with those at the vertical locations of the box. Slight changes to the eliminated board area for both hand holes and ventilation (±5%) contributed to less BCT reduction compared with its locations and shapes. Interestingly, increasing the box height significantly increased the BCT, and this was found to be limited only to shorter boxes fabricated from a high stiffness corrugated board. Deformation and compressive strength of corrugated cartons under different indentation shapes: Experimental and simulation study, Guifen Gong et al, Packaging Technology and Science (2020), online. A new method to enhance the compressive strength of corrugated cartons is proposed in this study. The work aims to carry out compression tests on the corrugated carton to analyze the deformation and compressive capacity of the carton under the indentation condition of different shapes.
Technical Abstracts
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