• SURJYA NARAYAN PANDA
• SUSANTA KUMAR BISWAL
• UPENDRA PRASAD TRIPATHY

Due to increase in paper product requirement and decreasing the availability of fibrous raw material now-a-days, recycling of paper is carried out. About 80% of all waste paper obtained from three sources: Corrugated box, Newspaper & Office wasate papers. Deinking is an important step for recycling of old waste writing, printing and newsprint papers. The efficiency of ink separation in the process of waste paper recycling depends on the ink properties, kind of the substrates, and age of waste papers, the printing techniques and printing conditions. In general deinking process a large amount of chemical is required which makes this method expensive, pollution intensive and also not obtained a perfect quality. In the present research work we are trying for a better cost effective deinking process by optimizing the chemical doses, maintaining the pH and applying different percentage of Na2CO3 as an additive. The physical strength properties of the paper after deinking are studied briefly. The chemical doses at which better strength properties of paper is obtained can identified.

Deinking, Flocculants, Recycled fibre, Coagulant, Ink, Office waste, Newsprint

"IMPROVEMENT OF THE PHYSICAL STRENGTH PROPERTIES OF RECYCLED PAPER: IN A NEW WAY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 2, page no.13-20, February-2019, Available :http://www.jetir.org/papers/JETIR1902103.pdf

"IMPROVEMENT OF THE PHYSICAL STRENGTH PROPERTIES OF RECYCLED PAPER: IN A NEW WAY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 2, page no. pp13-20, February-2019, Available at : http://www.jetir.org/papers/JETIR1902103.pdf