G - Physics – 03 – F
Patent
G - Physics
03
F
G03F 7/26 (2006.01) B41N 1/04 (2006.01) B41N 3/03 (2006.01) C09D 143/02 (2006.01) G03F 7/016 (2006.01)
Patent
CA 2172734
Provided herein a process to improve the hydrophilicity of the surface of the substrate for a lithographic printing plate. The inventive process comprises treating said surface with a solution of polyvinyl phosphonic acid which is maintained at a pH range of about 2.5 to about 6.6 at temperature range of ambient to about 212 °F for about 5-20 seconds. The process substantially reduces sensitivity to background toning, thereby substantially improving the quality of images printed from using the inventive lithographic printing plate.
L'invention décrit un procédé destiné à améliorer le caractère hydrophile de la surface du substrat pour une plaque d'impression lithographique. Le procédé selon l'invention consiste à traiter ladite surface avec une solution d'acide polyvinylphosphonique partiellement neutralisée et maintenue dans une plage de pH de 2,5 à 6,6 environ dans une plage de températures allant de la température ambiante à 212~F pendant 5 à 20 secondes environ. Ce procédé réduit sensiblement la coloration de fond, ce qui améliore sensiblement la qualité des images imprimées grâce à la plaque d'impression lithographique selon l'invention.
Dhillon Major S.
King Dennis A.
Loveland Allen W.
Sprintschnik Gerhard
Wanat Stanley F.
Hoechst Celanese Corporation
Smart & Biggar
LandOfFree
Process for improving the hydrophilicity of the substrate... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for improving the hydrophilicity of the substrate..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for improving the hydrophilicity of the substrate... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1656816