BigPatents India

The present invention relates to a novel process of aqueous finishing for waterproof leathers. The process has enormous potential application in leather processing industry as an eco-friendly option for finishing waterproof leathers. It is envisaged to be a major step towards production of high quality waterproof leathers even by using aqueous system. The process steps are: conditioning post tanned wet leather by known method to get sammed leather having moisture content in the range of 60-80% w/w.,. characterized in that applying aqueous base coat of film forming material, such as acrylate, polyurethane, used either individually or in combination, on the grain side of the sammed leather, as obtained in step (i), by known method, followed by conventional drying at a temperature in the range of 30-450C and subsequent subjecting of the resulting leather to conventional finishing by known method to get aqueous finished waterproof leather.