Dye Toning with Single Solutions

J. I. Crabtree, C. E. Ives

The idea of combining the mordanting and dye baths for obtaining dye toned images on motion picture positive film is by no means new. In 1912 Clement and Rivière recommended a single solution bath containing a basic dye, potassium ferricy-anide, potassium iodide, and sulphuric acid. In 1819 Shorrocks2 patented a combined bath containing rhodamine, uranyl ferricy-anide, vanadium chloride, ferric ammonium citrate, sodium citrate, ammonium chloride and hydrochloric acid, while Friese-Greene and Thompson3 were granted an English patent for a combination of a uranium mordanting bath with a basic dye.

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Published
1928-09
Content type
Original Research
DOI
10.5594/J00758