Process Evaluation and Performance Enhancement of Corrugated Board Fabrication. (A case of Burayu Packaging and Printing Industry)
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Date
2023-07
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Addis Ababa University
Abstract
The materials utilized, the conversion process, and other factors could all have an impact on the corrugated board performance. The objective of the thesis to quantify the mechanical strength of the corrugated board, the adhesive strength, the paper compression strength at fabrication process of investigated the pin adhesive, edge crush, box compression strength and material properties test at standardize methods. Based on the experimental result the reel size of 165,185,205,220 cm at fabrication speed on 50,65,80,95 m/min which can be used to determine varies result of compression strength exhibited at 50 m/min, and the fabricated board was the maximum, pin adhesive 356,352,351,349 Newton, edge crush 4.5,4.3,4.2,4.4 KN/m, pure box compression 112- 114 kg strength were shown. Reel size 220 cm fabricated at 80 m/min refers to the laboratory results minimum strength were performed. The Maltenfort model by correlating the measured ring crush test with the theoretical edge compression test enable to know the board strength of how much the variables degraded the strength of the combined board as of reel size 185,205,220 cm at 80 and 95 m/min during the process. The regression equation which can be used to evaluate the linear effect of the process and can be used to predict the performance of the box and enable it to enter into optimum fabricating process as well as strength improvement decisions. Boards will have better strength if they follow optimum process can be achieved by balancing and selecting the variables of fabricating speed, reel size, and material properties which helps to identify the strength of the board and evaluate the fabrication process. Overall, this study provided experimental and McKee box prediction are done for the evidence of structural performance and delamination strength of the corrugated fiber board by aligning a process through runnability.
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Keywords
Pin adhesive strength, corrugated board compression strength, Defect Analysis of corrugated board, paper compression strength