EP 0557845 A1 19930901 - Drying method and apparatus for tape-like or sheet-like photographic film supports.
Title (en)
Drying method and apparatus for tape-like or sheet-like photographic film supports.
Title (de)
Verfahren und Vorrichtung zum Trocknen von band- oder blattförmigen, fotografischen Schichtträgern.
Title (fr)
Procédé et dispositif pour le séchage de supports de couches photographiques en forme de bandes ou de feuilles.
Publication
Application
Priority
DE 4206048 A 19920227
Abstract (en)
[origin: US5369894A] A moist web of exposed and developed photographic film or photographic paper is continuously advanced through a drying unit wherein selected areas of the path for the web are monitored by devices which generate signals denoting the heat absorptivity of monitored portions of the web. Such signals are processed and utilized to regulate the intensity of heat which is emitted by batteries of heating elements at both sides of the path for the running web. This ensures that the less developed portions of the web are subjected to sufficient heating action and that the more developed portions of the web are not overheated. The monitoring can involve ascertaining the intensity of heat which has penetrated through successive portions of the running web and/or ascertaining the intensity of heat which is reflected by successive portions of the running web and issues from heating elements designed to emit heat of known intensity.
Abstract (de)
Ein Verfahren zum Trocknen eines band- oder blattförmigen, fotografischen Schichtträgers, der entlang eines Transportweges zwischen auf beiden Seiten des Transportweges senkrecht zur Transportrichtung, parallel zur Ebene des Schichtträgers angeordneten Heizelementen bewegt wird, wobei der Schichtträger durch die von den Heizelementen abgegebene Wärmestrahlung getrocknet wird, ist so ausgebildet, daß durch mindestens einen Meßsensor (5) der Wärmeabsorptionsgrad des momentan im Einflußbereich der Wärmestrahlung liegenden Teils des fotografischen Schichtträgers (1) ermittelt und anhand des ermittelten Absorptionsgrades die Intensität der von den Heizelementen (2) abgegebenen Wärmestrahlung verändert wird. <IMAGE>
IPC 1-7
IPC 8 full level
G03D 15/02 (2006.01)
CPC (source: EP US)
G03D 15/022 (2013.01 - EP US)
Citation (search report)
- [X] EP 0383484 A1 19900822 - EASTMAN KODAK CO [US]
- [AD] EP 0070390 A1 19830126 - AGFA GEVAERT AG [DE]
- [A] US 3864843 A 19750211 - HERZHOFF PETER, et al
- [A] EP 0068207 A1 19830105 - MINNESOTA MINING & MFG [US]
Designated contracting state (EPC)
DE DK FR GB IT
DOCDB simple family (publication)
DE 4206048 C1 19930107; DE 59302080 D1 19960509; DK 0557845 T3 19960729; EP 0557845 A1 19930901; EP 0557845 B1 19960403; US 5369894 A 19941206
DOCDB simple family (application)
DE 4206048 A 19920227; DE 59302080 T 19930215; DK 93102328 T 19930215; EP 93102328 A 19930215; US 1874093 A 19930217