EP 0197493 A3 19870930 - VERTICAL DRAWING CURTAIN COATING METHOD AND APPARATUS
Title (en)
VERTICAL DRAWING CURTAIN COATING METHOD AND APPARATUS
Publication
Application
Priority
CN 85100851 A 19850401
Abstract (en)
[origin: EP0197493A2] This invention develops a new kind of vertical drawing curtain coating method and apparatus, which contains three main parts: a higher uniform equal-flow distributing coater, a vertical drawing short-curtain, a parallel rotated coating roller and moving webs. This coating method can simultaneously coat one or more than one layer with high uniformity, and is suitable for silver salt or non-silver salt photo-sensitive materials production. It can use a liqud viscosity from 2 to 1,000 mPas at a coating velocity 30 to 300 mm/in to get a coating weight from 20 to 240 ml/m<2>; and can avoid coating defects such as those usually found in the bead coating and vertical free-falling curtain coating methods.
IPC 1-7
IPC 8 full level
B05C 5/00 (2006.01); G03C 1/74 (2006.01); B05C 9/06 (2006.01)
CPC (source: EP)
B05C 5/005 (2013.01); B05C 5/007 (2013.01); B05C 5/008 (2013.01); G03C 1/74 (2013.01); B05C 9/06 (2013.01); G03C 2001/7433 (2013.01); G03C 2001/747 (2013.01); G03C 2001/7474 (2013.01); G03C 2001/7485 (2013.01)
Citation (search report)
- [AD] US 4287240 A 19810901 - O'CONNOR THOMAS R
- [A] US 3082144 A 19630319 - CRESSWELL HALEY FLOYD
- [AD] EP 0031301 A1 19810701 - CIBA GEIGY AG [CH]
- [XP] EP 0168986 A2 19860122 - DU PONT [US]
Designated contracting state (EPC)
BE CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0197493 A2 19861015; EP 0197493 A3 19870930; CN 85100851 A 19851010; CN 85100851 B 19880330; JP S61292140 A 19861222
DOCDB simple family (application)
EP 86104449 A 19860401; CN 85100851 A 19850401; JP 7536586 A 19860401