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Fig. 5 | Heritage Science

Fig. 5

From: Deep eutectic solvents: green solvents for the removal of degraded gelatin on cellulose nitrate cinematographic films

Fig. 5

50 × UV OM cross-sections photomicrographs of the film taken in a degraded point, highlighting the average depth of each of its layers: the red-tinted emulsion residues (a, depth in white) adhered to the back side of the film base, the CN base (b, depth in red), and the original emulsion layer at the front of the film (c). The treated side of the CN base is looking up

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