Global Patent Index - EP 0342371 A3

EP 0342371 A3 19910123 - METHOD FOR THE PREPARATION OF A THERMAL DYE RIBBON FOR THERMAL TRANSFER PRINTING

Title (en)

METHOD FOR THE PREPARATION OF A THERMAL DYE RIBBON FOR THERMAL TRANSFER PRINTING

Publication

EP 0342371 A3 19910123 (DE)

Application

EP 89107007 A 19890419

Priority

DE 3816636 A 19880516

Abstract (en)

[origin: EP0342371A2] A method for the preparation of a thermal ink ribbon, in particular a thermal carbon ribbon, with a wax- and/or plastic-bonded melt-on ink is described. This method is characterised in that, on one side of the wax- and/or plastic-bonded melt-on ink, a thin layer of a polymer is formed by applying thereto a) the dispersion or solution of a film-forming polymer which is non-fusible during the thermal printing step and evaporating the solvent or dispersant or b) a monomer and/or prepolymer and then subjecting the latter to an in-situ polymerisation. The particular advantages of this thermal ink ribbon are that an expensive carrier film is no longer necessary and the heat transfer during the thermal printing step is promoted as compared with a thicker carrier film.

IPC 1-7

B41M 5/26

IPC 8 full level

B41J 31/00 (2006.01); B41M 5/44 (2006.01)

CPC (source: EP US)

B41M 5/44 (2013.01 - EP US); B41M 2205/30 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE ES FR GB GR IT LI LU NL SE

DOCDB simple family (publication)

EP 0342371 A2 19891123; EP 0342371 A3 19910123; DE 3816636 A1 19891123; DE 3816636 C2 19900419; JP H0218078 A 19900122; US 5019421 A 19910528

DOCDB simple family (application)

EP 89107007 A 19890419; DE 3816636 A 19880516; JP 12057789 A 19890516; US 35162489 A 19890512