DANT R7 is an anionic resin powder with high selective filling and fullness and levelling effect, required for retanning and dyeing process on all types of leather.
DANT R7 is recommended in retanning process to correct
looseness on the weak parts of hides and skins and to level tile thickness and
fullness of the leather.
DANT R7 is added after neutralization, before dyestuff, at the beginning of retanning process.
% on shaved wet blue weight