Bridge of Weir, Tanning, the tanning drums

Bridge of Weir, Tanning, details of wet blues and whites

> Tanning

After de-liming and pickling to make the hide more receptive, the hides are tanned to stabilise the collagen fibres and prevent its decay. This can be done either using a solution of recyclable chromium salts producing 'wet blues' or various organic solutions producing 'wet whites'

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