Fig. 9From: Deep eutectic solvents: green solvents for the removal of degraded gelatin on cellulose nitrate cinematographic films50 × UV OM cross-sections photomicrographs of the film before cleaning (up left) and after cleaning with ChCl:EG (up right), B:EG (bottom left) and B:U (bottom right). The treated side of the CN base is looking upBack to article page