Tanning process and tanning compositions
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United States of America Patent
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Sep 7, 1982
Grant Date -
N/A
app pub date -
May 7, 1980
filing date -
May 11, 1979
priority date (Note) -
Expired
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Abstract
A tanning process comprising pickling a hide which has previously subjected to beamhouse works such as depilation if necessary, decalcification and beating, in the presence of urotropin and at least one tanning improver selected from chromium and aluminum salts as well as from phenolic compounds, organic compounds containing nitrogen and sulphur or halogen atoms, organic carboxylic acids, organotin compounds, copper compounds and arsenic compounds.
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