Photosensitive diazo lithographic printing plate with oxalic aci

Details Photosensitive diazo lithographic printing plate with oxalic aci Photosensitive diazo lithographic printing plate with oxalic aci

1977-06-28

1979-10-30

Bowers, Jr., Charles L.

Gas separation: apparatus

Electric field separation apparatus

Plural diverse electric fields

96 33, 96 91R, G03C 160, G03C 194

Patent

active

041727290

ABSTRACT:
A photosensitive diazo composition for a pre-sensitized lithographic plate which exhibits an extended shelf life as well as improved printing performance, the composition comprising (a) a diazonium compound, (b) an organic high molecular weight binder, and (c) from about 0.1 to about 5% by weight of oxalic acid or a salt thereof.

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Kosar, J., "Light-Sensitive Systems", J. Wiley & Sons, 1965, p. 292.
Weiner et al., Institute of Paper Chemistry, Biblio Series #220, "Diazotype Papers", p. 56.

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