Deinking Technology; its Modification and Recent Developments: A Review

Deinking is an important step for recycling of old waste writing, printing and newsprint papers. The demand of paper has been continuously faster than the availability of fibre from natural source. The efficiency of ink separation in the process of waste paper recycling depends on the ink properties, kind of the substrates, 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 paper a brief Journal review has been carried out on the recent developments in the deinking process and what are the better steps to obtain a standard recycle quality paper. Recycling of waste paper has been found to be more economical and eco-friendly.