Global Patent Index - EP 0838045 A1

EP 0838045 A1 19980429 - MAKING A PHOTOPOLYMER PRINTING PLATE

Title (en)

MAKING A PHOTOPOLYMER PRINTING PLATE

Title (de)

HERSTELLUNG EINER PHOTOPOLYMERDRUCKPLATTE

Title (fr)

FABRICATION D'UNE PLAQUE D'IMPRESSION PORTANT UN PHOTOPOLYMERE

Publication

EP 0838045 A1 19980429 (EN)

Application

EP 96923595 A 19960702

Priority

  • US 9611185 W 19960702
  • US 50230795 A 19950713

Abstract (en)

[origin: WO9703382A1] A process of making a photopolymer printing plate includes steps of exposing a photopolymer material to light that is applied in a predetermined image pattern, washing the plate with a processing solution in order to cause polymeric material from portions of the plate that are determined by the image pattern to dissolve from the plate into the processing solution, and removing the dissolved polymeric material from the processing solution on the molecular level by ultrafiltration. The use of ultrafiltration permits the polymeric material to be efficiently recovered without the need for conventional recovery techniques such as distillation or flocculation, and allows reuse of the filtrate to process additional photopolymer plates. A system (10) for performing the process is also disclosed. The system is comprised of a plate making system (12), and an ultrafiltration system (24) with an ultrafilter (26) and a recirculation conduit (32).

IPC 1-7

G03F 7/30

IPC 8 full level

B01D 61/14 (2006.01); C02F 1/44 (2006.01); G03F 7/30 (2006.01)

CPC (source: EP)

B01D 61/145 (2013.01); C02F 1/444 (2013.01); G03F 7/3092 (2013.01)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

WO 9703382 A1 19970130; AU 6406896 A 19970210; CA 2226966 A1 19970130; EP 0838045 A1 19980429; EP 0838045 A4 19981028; JP H11509010 A 19990803

DOCDB simple family (application)

US 9611185 W 19960702; AU 6406896 A 19960702; CA 2226966 A 19960702; EP 96923595 A 19960702; JP 50586697 A 19960702