Global Patent Index - EP 0986485 A1

EP 0986485 A1 2000-03-22 - A HEAT SENSITIVE PRINTING PLATE PRECURSOR

Title (en)

A HEAT SENSITIVE PRINTING PLATE PRECURSOR

Title (de)

VORLÄUFER FÜR EINE WÄRMEEMPFINDLICHE DRUCKPLATTE

Title (fr)

PRECURSEUR DE PLANCHE D'IMPRESSION THERMOSENSIBLE

Publication

EP 0986485 A1 (EN)

Application

EP 98932143 A

Priority

  • EP 9803476 W
  • GB 9711388 A

Abstract (en)

[origin: GB2325887A] A lithographic printing plate precursor comprises a grained and anodised aluminium substrate coated with a metallic silver layer which is deposited by means of a silver salt diffusion transfer process in which the developer has a pH of at least 10. Imagewise exposure of the precursor by means of a high intensity laser beam removes the metallic layer in the exposed areas and allows for the direct provision of press ready plates showing high image quality and clean background, good press properties and high durability on press without the requirement for the use of intermediate film and developer chemistry. The plate precursors show increased sensitivity on exposure.

IPC 1-7 (main, further and additional classification)

B41N 1/08; B41C 1/10

IPC 8 full level (invention and additional information)

B41C 1/10 (2006.01); B41N 1/08 (2006.01); B41N 1/14 (2006.01); G03F 7/07 (2006.01)

CPC (invention and additional information)

B41N 1/083 (2013.01); B41C 1/1033 (2013.01)

Citation (search report)

See references of WO 9855330A1

Designated contracting state (EPC)

DE FR GB IT NL

EPO simple patent family

GB 2325887 A 19981209; GB 9811830 D0 19980729; EP 0986485 A1 20000322; GB 9711388 D0 19970730; JP 2002508852 A 20020319; WO 9855330 A1 19981210

INPADOC legal status


2001-10-24 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20010410

2000-11-15 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20000928

2000-03-22 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000105

2000-03-22 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB IT NL