photosensitive photographic material containing dye colors to give the blue dye is the money laundering

摘要

1287173 Disazo dyes FUJI PHOTO FILM CO Ltd 21 Sept 1970 [22 Sept 1969] 44880/70 Heading C4P [Also in Divisions C2 and G2] 1 - Benzoylamino - 8 - hydroxynaphthalene- 3,6 - disulphonic acid - 7 - azo - (2,5 - dimethoxy- 4 - amino) - benzene is prepared by reducing with sodium sulphide the nitroazo dye formed by diazotizing 1 - amino - 2,5 - dimethoxy - 4- nitrobenzene and adding the diazotized liquid to a solution of 1-benzoylamino-8-hydroxynaphthalene - 3,6 - disulphonic acid containing sodium carbonate to cause coupling. 1-Benzoylamino - 8 - hydroxynaphthalene - 3,6 - disulphonic acid - 7 - azo - (2,5 - dimethoxy) - pphenylene - azo - 2 - [1 - hydroxy - 8(3 - amino- 5 - chloro - s - triazinyl)amino]naphthalene - 3,6- disulphonic acid is prepared by diazotizing the above azo dye and coupling this with 1-(3- amino - 5 - chloro - s - triazinyl) - amino - 8- naphthol - 3,6 - disulphonic acid in aqueous pyridine solution at 20‹ C. 1-Benzoylamino-8- hydroxynaphthalene - 3,6 - disulphonic acid- 7 - azo - (2,5 - dimethoxy) - p - phenylene - azo- 2 - [1 - hydroxy - 8 - (3 - chloro - 5 - hydroxy - s triazinyl)amino]naphthalene- 3,6 - disulphonic acid and 1 - benzylamino - 8 - hydroxynaphthalene - 3,6 - disulphonic acid - 7 - azo - (2,5- dimethoxy) - p - phenylene - azo - 2 - [1 - hydroxy- 8 - (3,5 - dihydroxy - s - triazinyl)amino]- naphthalene - 3,6 - disulphonic acid are prepared similarly.