Chromogenic Color Prints (silver Halide Prints)
The longevity of images on chromogenic color photographic papers depends on the temperature and relative humidity of the storage environment, and on the total light exposure they receive. Older chromogenic papers undergo more rapid fading compared to modern materials. For example, Fujifilm's Crystal Archive papers have a quoted longevity of sixty years dark storage. The stability of coupler-incorporated chromogenic prints has steadily increased since their introduction by Kodak in 1942. Very significant advances in stability were made in case of Kodak prints in 1954, 1958, and in the early 1980s. These changes can often be used for the dating of color prints, and can be correlated with manufacturing changes documented in the technical literature.
Read more about this topic: Print Permanence
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