Claims
- 1. A method for obtaining a high quality printing plate by spraying a spray solution on a receiving surface, which is not a grained and anodized aluminum surface, wherein the pressure factor (PF) is lower than 200 mN/m, whereinPF=P/d×(σ+θ mN/m°) PF: Pressure Factor (mN/m) P: Spray Profile (mm) d: distance between spray head and receiving surface (mm) σ: surface tension (mN/m) θ: Dynamic contact angle of the receiving surface with water at 2 s contact time, and wherein the spray solution comprises hydrophobic thermoplastic polymer particles and a compound capable of converting light into heat.
- 2. A method according to claim 1 wherein the pressure factor is lower than 125 mN/m.
- 3. A method according to claim 1 wherein said solution comprises a hydrophilic binder.
- 4. A method according to claim 1 wherein the receiving surface is a hydrophilic surface of a lithographic base.
- 5. A method according to claim 1 wherein the receiving material is a drum with a hydrophilic surface, capable of being incorporated in a printing machine.
- 6. A method according to claim 1 wherein the receiving surface is a lithographic plate with a hydrophilic surface mounted onto a drum.
- 7. A method according to claim 1 wherein the receiving surface is a hydrophilic coating on a flexible support.
- 8. A method according to claim 1 wherein the dynamic contact angle of the receiving surface with water is lower than 60° after 2 s contact time.
Priority Claims (1)
Number |
Date |
Country |
Kind |
99203065 |
Sep 1999 |
EP |
|
Parent Case Info
This application claims the benefit of U.S. Provisional Application No. 60/155,770 filed Sep. 27, 1999.
US Referenced Citations (12)
Foreign Referenced Citations (6)
Number |
Date |
Country |
0 429 234 |
May 1991 |
EP |
0 674 230 |
Sep 1995 |
EP |
0 770 495 |
May 1997 |
EP |
0 849 091 |
Jun 1998 |
EP |
001084830 |
Mar 2001 |
EP |
001084862 |
Mar 2001 |
EP |
Provisional Applications (1)
|
Number |
Date |
Country |
|
60/155770 |
Sep 1999 |
US |