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
