Innovation of New Cleaner Technology: Tannage by Local Tanning Agent Acacia Nilotica (Garad) and Aluminum Retannage

Abstract

The present work was carried out to reuse chromium tannage and establish new cleaner technology by using vegetable tanning (garad) with aluminum alternatives to chromium tannage. Twelve pickled cattle hides were treated in pilot drum with speed of 8 rpm in four trails. Used garad (Acacia nilotica) as tannage offers vegetable agent (30%) and Aluminum as retannage in different percentage (1, 2, 3, 4 %), followed by 10% garad. Chemical analysis of leather viz. percentage of moisture, ash, and fat were carried out for the experimental leathers. Physical testing including thickness, tensile strength, percentage elongation at break, and shrinkage temperature. The chemical properties of leathers in all trials are found to be quite normal. The shrinkage temperature of experimental leathers for all trails above 70°C, tensile strength that above 215 Kg/cm2