Global Patent Index - EP 0692733 B1

EP 0692733 B1 19980204 - Direct thermal recording process

Title (en)

Direct thermal recording process

Title (de)

Direktes thermisches Aufzeichnungsverfahren

Title (fr)

Procédé directe pour l'enregistrement thermique

Publication

EP 0692733 B1 19980204 (EN)

Application

EP 95201273 A 19950516

Priority

  • EP 95201273 A 19950516
  • EP 94201954 A 19940707

Abstract (en)

[origin: EP0692733A2] A direct thermal recording process wherein a direct thermal recording material is heated dot-wise and said direct thermal recording material comprises on a substrate an imaging layer containing uniformly distributed in a film-forming polymeric binder (i) one or more substantially light-insensitive organic silver salts being no double salts, said silver salt(s) being in thermal working relationship with (ii) an organic reducing agent therefor, characterized in that said reducing agent is a benzene compound the benzene nucleus of which is substituted by no more than two hydroxy groups which are present in 3,4-position on said nucleus and have in the 1-position of said nucleus a substituent linked to said nucleus by means of a carbonyl group.

IPC 1-7

B41M 5/32; G03C 1/498

IPC 8 full level

B41M 5/32 (2006.01); G03C 1/498 (2006.01)

CPC (source: EP)

G03C 1/4989 (2013.01); G03C 1/49827 (2013.01); G03C 1/49872 (2013.01); G03C 2001/7488 (2013.01)

Designated contracting state (EPC)

BE DE FR GB NL

DOCDB simple family (publication)

EP 0692733 A2 19960117; EP 0692733 A3 19960320; EP 0692733 B1 19980204

DOCDB simple family (application)

EP 95201273 A 19950516