A PROCESS FOR MAKING IRON TANNED LEATHER USING NATURAL POLYSACCHARIDE

摘要

At present, the awareness among the public is becoming more about the pollution related problems associated with chrome tanning method, which is a versatile tanning system often stated that about 85-90% of all leathers produced are chrome tanned. Iron salts have been reported to be inexpensive and non-polluting with interesting tanning abilities. The previous attempts shows that even with proper masking salts a solo iron tannage can be achieved a shrinkage temperature of 80-97°C. In this connection, arabinogalactan protein complex, which is a complex natural polysaccharide, is employed as masking agent along with ferric sulphate, tartarate, and phthalate as chelating ligands. The resultant leathers show a shrinkage temperature of 108 -110°C.