Radiation imagery chemistry: process – composition – or product th – Post imaging processing – Bleaching
Patent
1988-07-05
1990-05-08
Michl, Paul R.
Radiation imagery chemistry: process, composition, or product th
Post imaging processing
Bleaching
430460, 430461, 430462, 430393, 252 94, 252102, G03C 544
Patent
active
049237853
ABSTRACT:
The one-part aqueous bleaching bath concentrate containing an ammonium iron (III) complex salt concentration of at least 0.4 mol per liter, an ammonium bromide concentration of from 1.5 to 3 mol per liter, an ammonium nitrate concentration of from 0.25 to 1 mol per liter and a pH below 3 is stable in storage.
REFERENCES:
patent: 4301236 (1980-01-01), Idota et al.
patent: 4745048 (1988-05-01), Kishimoto et al.
patent: 4769313 (1988-09-01), Fujimoto et al.
AGFA Gevaert AG
Chea Thon
Michl Paul R.
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