Non-Aqueous Quinacridone Dispersions Using Dispersion Synergists
申请人:Deroover Geert
公开号:US20080305261A1
公开(公告)日:2008-12-11
A non-aqueous pigment dispersion includes a quinacridone pigment, a polymeric dispersant, and a dispersion synergist in a non-aqueous dispersion medium wherein the dispersion synergist is a quinacridone derivative substituted on one of the two nitrogen atoms of the quinacridone basic chromophore structure by a group including at least one carboxyl group or a salt thereof. Also, a method for printing an ink-jet image with an ink including the non-aqueous pigment dispersion.
Quinacridone Derivatives for Pigment Dispersions
申请人:Deroover Geert
公开号:US20080314285A1
公开(公告)日:2008-12-25
A quinacridone derivative according to Formula (I):
wherein R
1
and R
2
are each independently selected from the group consisting of hydrogen, alkyl, and halogen. Also, methods for preparing non-aqueous pigment dispersions and inkjet inks including a pigment and the quinacridone derivative of Formula (I).
US7585364B2
申请人:——
公开号:US7585364B2
公开(公告)日:2009-09-08
US8084091B2
申请人:——
公开号:US8084091B2
公开(公告)日:2011-12-27
[EN] NON-AQUEOUS QUINACRIDONE DISPERSIONS USING DISPERSION SYNERGISTS<br/>[FR] DISPERSIONS DE QUINACRIDONE NON AQUEUSES FAISANT APPEL A DES SYNERGISTES DE DISPERSION
申请人:AGFA GRAPHICS NV
公开号:WO2007060265A2
公开(公告)日:2007-05-31
[EN] A non-aqueous pigment dispersion comprising a quinacridone pigment, a polymeric dispersant and a dispersion synergist in a non-aqueous dispersion medium characterized in that said dispersion synergist is a quinacridone derivative substituted on one of the two nitrogen atoms of the quinacridone basic chromophore structure by a group comprising at least one carboxyl group or a salt thereof. A method for printing an ink-jet image is also disclosed. [FR] L'invention concerne une dispersion pigmentaire non aqueuse comprenant un pigment de quinacridone, un dispersant polymère et un synergiste de dispersion dans un milieu de dispersion non aqueux. L'invention se caractérise en ce que le synergiste de dispersion est un dérivé de quinacridone substitué sur l'un des deux atomes d'azote de la structure du chromophore de base de quinacridone par un groupe renfermant au moins un groupe carboxyle ou un sel correspondant. L'invention concerne également un procédé d'impression d'une image jet d'encre.