EP 0037477 B1 19840822 - COPYING SYSTEM AND METHOD FOR ITS MANUFACTURE, AND OFFSET OR PRINTING DYES USEFUL IN THIS SYSTEM
Title (en)
COPYING SYSTEM AND METHOD FOR ITS MANUFACTURE, AND OFFSET OR PRINTING DYES USEFUL IN THIS SYSTEM
Publication
Application
Priority
- DE 3011708 A 19800326
- DE 3011709 A 19800326
- DE 3103816 A 19810204
Abstract (en)
[origin: US4404251A] The invention relates to a pressure-sensitive, carbonless copying system and to a process for the production of pressure-sensitive, carbonless copying system wherein a non-aqueous, substantially solvent free printing ink containing micro-capsules which contain dye-precursors, is applied by wet and dry offset and book printing techniques to all or part of at least one surface of a paper substrate; and to printing inks comprising (1) binders, (2) microcapsules containing dye precursors, (3) spacers having a grain size of from 1.5 to 10 times the diameter of the microcapsules, and optionally auxiliaries and additives.
IPC 1-7
IPC 8 full level
B41M 1/02 (2006.01); B41M 1/06 (2006.01); B41M 1/08 (2006.01); B41M 5/00 (2006.01); B41M 5/124 (2006.01)
CPC (source: EP US)
B41M 1/02 (2013.01 - EP US); B41M 1/06 (2013.01 - EP US); B41M 1/08 (2013.01 - EP US); B41M 5/1246 (2013.01 - EP US); Y10S 428/914 (2013.01 - EP US); Y10T 428/249995 (2015.04 - EP US); Y10T 428/249997 (2015.04 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0037477 A2 19811014; EP 0037477 A3 19820526; EP 0037477 B1 19840822; DE 3165625 D1 19840927; US 4404251 A 19830913
DOCDB simple family (application)
EP 81101875 A 19810313; DE 3165625 T 19810313; US 35203882 A 19820224