EP 1243410 A1 20020925 - Method of making a heat-sensitive lithographic printing plate precursor
Title (en)
Method of making a heat-sensitive lithographic printing plate precursor
Title (de)
Verfahren zur Herstellung eines wärmeempfindlichen Vorläufers für eine Flachdruckplatte
Title (fr)
Méthode pour la fabrication d'un précurseur thermosensible pour une plaque lithographique
Publication
Application
Priority
EP 01000059 A 20010320
Abstract (en)
A method of making a negative-working heat-sensitive lithographic printing plate precursor is disclosed, the method comprising the steps of (a) preparing an aqueous dispersion comprising particles of a hydrophobic thermoplastic polymer A which is not soluble or swellable in an aqueous alkaline developer and particles of a polymer B which is soluble or swellable in an aqueous alkaline developer but not soluble or swellable in water, wherein the glass transition temperature of polymer A is higher than the softening temperature of polymer B; (b) applying the aqueous dispersion on a lithographic substrate having a hydrophilic surface, thereby obtaining an image-recording layer; (c) heating the image-recording layer at a temperature which is higher than the softening temperature of polymer B, and preferably lower than the glass transition temperature of polymer A. The printing plate precursor has improved mechanical resistance.
IPC 1-7
IPC 8 full level
G03F 7/004 (2006.01); B41C 1/055 (2006.01); B41C 1/10 (2006.01); B41N 1/14 (2006.01); G03F 7/00 (2006.01); G03F 7/38 (2006.01); B41M 5/36 (2006.01)
CPC (source: EP)
B41C 1/1025 (2013.01); B41C 2210/04 (2013.01); B41C 2210/06 (2013.01); B41C 2210/22 (2013.01); B41C 2210/24 (2013.01); B41C 2210/262 (2013.01)
Citation (search report)
- [X] EP 1080884 A1 20010307 - AGFA GEVAERT NV [BE]
- [X] EP 0881096 A1 19981202 - AGFA GEVAERT NV [BE]
- [X] EP 0839647 A1 19980506 - AGFA GEVAERT NV [BE]
- [X] EP 0773113 A1 19970514 - AGFA GEVAERT NV [BE]
- [X] EP 0773112 A1 19970514 - AGFA GEVAERT NV [BE]
- [X] EP 0770497 A1 19970502 - AGFA GEVAERT NV [BE]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1243410 A1 20020925; DE 60200521 D1 20040701; DE 60200521 T2 20050623; JP 2002333705 A 20021122
DOCDB simple family (application)
EP 01000059 A 20010320; DE 60200521 T 20020212; JP 2002075943 A 20020319