The Stages in the Tanning Process
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Reception
Soaking
Liming/ unhairing
Deliming
Bating
Pickling
Tannery
Tannery
Soaking
Liming/ unhairing
Deliming
Bating
Bating
Liming/ unhairing
Pickling
Pickling
hides arrive from supplier
restore hide to natural state
remove hair,
remove lime
loosen collagen fibres
acidify pelts
introduce cross-links
chromium salts
detergents for rehydration
calcium hydroxide
ammonium sulfate
pancreatic enzymes
bacterial enzymes
sodium sulfide
sulfuric acid
salt to stop swelling