tanstuff

plural tanstuffs

1. countableuncountableMaterial that can be used for tanning (the process of making leather).

   Canaigre is one of the few tanstuffs that seems to be well adapted to mechanised agriculture, should it become an economic crop.

   2016, S[uraj] L[al] Kochhar, “Vegetable Tannins and Dyestuffs”, in Economic Botany: A Comprehensive Study, 5th edition, Cambridge, Cambridgeshire; New York, N.Y.: Cambridge University Press, →ISBN, page 515

   2 more examples

   Knapp is of the opinion that the tanning process is only due to the coating of the hide fibres with the tanstuff, be this a tannin, a basic salt or an oil.

   1896, Bertram Blount, Chemistry for Engineers and Manufacturers, page 394

   Next morning the hides are taken out and the strength of the liquor is increased by 2°BK. by adding some ground tanstuff or some stronger liquor to it and the hides handled in the stronger liquor again as on the first day and left in it overnight.

   2011, Leather Processing & Tanning Technology Handbook