EP 0158686 B1 19890823 - MULTI-GRADATION HEAT SENSITIVE TRANSFER MEDIUM
Title (en)
MULTI-GRADATION HEAT SENSITIVE TRANSFER MEDIUM
Publication
Application
Priority
EP 84104297 A 19840416
Abstract (en)
[origin: EP0158686A1] A multi-gradation heat sensitive transfer medium for use in multi-gradation thermal transfer for adjusting the density of a transfer print image by superimposing ink layers on a recording medium a plurality of times by thermal transfer, which comprises a foundation and ink layers provided thereon, each of said ink layers containing a color pigment having a high transparency and a high tinting strength in an amount smaller than sufficient to provide a maximal degree of reflection density, and each of said ink layers having a light transmittance of not less than about 65% in a region where the color pigment does not have any absorption band. By superimposing the ink layers of the transfer medium on a recording medium a plurality of times, there is obtained a clear print image having a multiplicity of gradations.
IPC 1-7
IPC 8 full level
B41M 5/34 (2006.01)
CPC (source: EP)
B41M 5/345 (2013.01)
Designated contracting state (EPC)
CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0158686 A1 19851023; EP 0158686 B1 19890823; DE 3479488 D1 19890928
DOCDB simple family (application)
EP 84104297 A 19840416; DE 3479488 T 19840416