Process for quenching fluorescence, and new cationic or amphoter

Compositions – Radiation sensitive

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8102, 8568, 8566, 8606, 568924, 568931, G03C 100

Patent

active

046954058

ABSTRACT:
To quench the fluorescence produced by anionic fluorescent brighteners use is made of virtually colorless, water-soluble cationic or amphoteric compounds which contain in the molecule at least one ammonium group, at least two aryl, arylene, hetaryl and/or hetarylene groups and at least one nitro group.

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