Process and apparatus for developing a two-component diazocopyin

Details Process and apparatus for developing a two-component diazocopyin Process and apparatus for developing a two-component diazocopyin

1980-04-04

1982-03-16

Hix, L. T.

Radiation imagery chemistry: process, composition, or product th

Post imaging processing

Physical developing

354300, 430150, G03D 700

Patent

active

043198260

ABSTRACT:
Disclosed is a process for developing a two-component diazocopying material, comprising the steps of providing a film of an ammonia-steam mixture or of an aqueous ammonia solution, respectively, flowing uniformly into the interior of an evaporation zone and being uniformly heated at the same time to release a developing gas in the evaporation zone; providing a liquid developing solution in a sump zone; evaporating a portion of the developing solution to produce a developing gas in the evaporation zone located above the sump zone, passing the diazocopying material through a developing zone; introducing the developing gas from the evaporation zone into the developing zone and contacting the diazocopying material with the developing gas in the developing zone; maintaining the temperature in the developing zone at a level higher than the temperature at which the developing gas enters from the evaporation zone; and maintaining the temperature in the sump zone at a level higher than the temperature in the evaporation zone but not exceeding the temperature in the developing zone. Also disclosed is an apparatus for carrying out this process.

REFERENCES:
patent: 4003069 (1977-01-01), Hilgers
patent: 4062031 (1977-12-01), Schroter
patent: 4099868 (1978-07-01), Schroter et al.
patent: 4135814 (1979-01-01), Schroter et al.
patent: 4172652 (1979-10-01), Stein
patent: 4181420 (1980-01-01), Blume et al.
Offenlengungschrift 2534352, Published 3/2/77, pp. 1-23.
Auslegeschrift 2659486, Published 4/13/78, pp. 1-16.

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