Water soluble benzoxanthene dyestuffs for fluorescent inks

Details Water soluble benzoxanthene dyestuffs for fluorescent inks Water soluble benzoxanthene dyestuffs for fluorescent inks

1979-02-01

1980-12-30

Woodberry, Edward M.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

2603403, 260DIG38, 546 47, C09D 1100

Patent

active

042421390

ABSTRACT:
Water-soluble dyestuffs of the formula ##STR1## in which Y is oxygen or an imino group, R.sup.1 and R.sup.2 are hydrogen, halogen or lower alkyl or lower alkoxy, n is 1 to 3 and Z is a cation, are useful for fluorescent inks.

REFERENCES:
patent: 3759953 (1973-09-01), Troster
patent: 3812051 (1974-05-01), Merkle et al.
patent: 3888862 (1975-06-01), Meininger
patent: 3888863 (1975-06-01), Troster

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