EP 0017864 B1 19821117 - METHOD AND APPARATUS FOR DEVELOPMENT OF TWO-COMPONENT DIAZOTYPE MATERIAL
Title (en)
METHOD AND APPARATUS FOR DEVELOPMENT OF TWO-COMPONENT DIAZOTYPE MATERIAL
Publication
Application
Priority
DE 2914774 A 19790411
Abstract (en)
[origin: US4319826A] 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.
IPC 1-7
IPC 8 full level
G03C 1/58 (2006.01); G03C 5/18 (2006.01); G03D 7/00 (2006.01)
CPC (source: EP US)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0017864 A1 19801029; EP 0017864 B1 19821117; DE 2914774 A1 19801030; DE 3061090 D1 19821223; JP S55143559 A 19801108; JP S6252848 B2 19871107; US 4319826 A 19820316
DOCDB simple family (application)
EP 80101782 A 19800403; DE 2914774 A 19790411; DE 3061090 T 19800403; JP 4695180 A 19800411; US 13741680 A 19800404