The effect of cationic starch on the mechanical properties of paper Fluting mixing soda bagasse pulp and OCC

In this study, in order to improve the physical and mechanical properties of fluting paper from a mixture of old corrugated containerboard and bagasse soda pulp, cationic starch and based on pretests, was used in three levels of 5,10 and 15 kg per ton of paper and with a control sample, ie Paper without cationic starch was compared. The results showed that the effect of cationic starch in different treatments on grammage and tensile index was not significant, and was significant on burst and tear index and also CMT. Using cationic starch up to 5 kg per ton of paper can be effective in improving some physical and mechanical properties of fluting paper, such as reducing porosity and increasing burst index, but consuming more will not only not improve the paper's strength properties, It also reduces some of the resistance properties, especially the corrugated medium test. In addition, consuming more cationic starch will incur additional costs and increase the final price of the product.