Bio-tanning process for leather making
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United States of America Patent
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Jan 26, 2010
Grant Date -
Jun 29, 2006
app pub date -
Dec 23, 2004
filing date -
Dec 23, 2004
priority date (Note) -
Expired
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Abstract
Conventionally skins/hides are tanned with metal-ions and vegetable tannins. Environmental constraints on the discharge of toxic metal-ions and poor biodegradable vegetable tannins in the wastewater have become a serious issue. In this invention, the pelts are tanned using eco-benign bio-molecules other than vegetable tannins to reduce the pollution loads. Performance of the leathers is on par with conventionally processed leathers.
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