Yellow to orange disazo cationic dyes containing two heterocycli

Details Yellow to orange disazo cationic dyes containing two heterocycli Yellow to orange disazo cationic dyes containing two heterocycli

1975-02-25

1976-10-19

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260146D, 260152, 260154, 260155, 260156, 260175, 260178, 260179, 260268R, 260296R, 2603265C, 260562N, 2605676M, 2602475C, C09B 3522, C09B 3524, C09B 3534, D06P 324

Patent

active

039870227

ABSTRACT:
Biscationic disazo dyes having good exhaust and buildup on acid-modified BCF nylon fibers as well as good lightfastness and wetfastness on such fibers; and a process for dyeing nylon therewith at a pH of about 4 to 7. The dyes have the formula: ##SPC1##
Wherein

REFERENCES:
patent: 3133910 (1964-05-01), Baumann et al.
patent: 3148181 (1964-09-01), Wallace et al.
patent: 3252964 (1966-05-01), Fuchs et al.
patent: 3271383 (1966-09-01), Yamaya et al.
patent: 3402167 (1968-09-01), Entschel
patent: 3454552 (1969-07-01), Yamaya et al.
patent: 3532683 (1970-10-01), Sartori
patent: 3542758 (1970-11-01), Hegar
patent: 3649162 (1972-03-01), James
patent: 3729459 (1973-11-01), Hegar
patent: 3759893 (1973-09-01), James

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