COATED FINE PARTICLES, DISPERSED FINE PARTICLES, METHOD FOR PRODUCING COATED FINE PARTICLES, INK, RECORDING METHOD AND RECORDED IMAGE
申请人:Canon Kabushiki Kaisha
公开号:EP1801167A1
公开(公告)日:2007-06-27
An object of the present invention is to provide coated fine particles with a uniform particle size, having stable crystals on the surface, and to provide colored fine particles which exhibit good color development. A recorded image formed by a dispersion and an ink, using the coated fine particles, is provided with good color development and fastness. The present invention provides coated fine particles comprising fine particles as cores, the fine particles having a crystal layer on the surface, respectively.
PIGMENT, METHOD FOR PRODUCING PIGMENT, PIGMENT DISPERSION, METHOD FOR PRODUCING PIGMENT DISPERSION, RECORDING INK, RECORDING METHOD, AND RECORDED IMAGE
申请人:CANON KABUSHIKI KAISHA
公开号:EP1792960A1
公开(公告)日:2007-06-06
There are provided a novel pigment dispersion that can be suitably used as a coloring material for inks, especially inks for ink-jet recording, comprising a colored pigment in primary particles dispersed stably in a liquid medium, and a process for producing the pigment dispersion. A pigment dispersion comprising a colored pigment that is substantially of a primary particle maintaining type and is dispersed in a liquid medium, a process for producing the pigment dispersion, and an ink and recorded image using the pigment dispersion.
INTERMEDIATE CHEMICAL SUBSTANCE IN PIGMENT CRYSTAL PRODUCTION STAGE, PROCESS FOR PRODUCING PIGMENT CRYSTAL FROM THE SAME, AND CRYSTALLINE PIGMENT
申请人:CANON KABUSHIKI KAISHA
公开号:EP1792950A1
公开(公告)日:2007-06-06
There is provided a method for producing pigment crystals with sufficiently high purity and sufficiently controlled crystal type, particle size, and aggregation property and dispersibility to obtain a pigment crystal that can be suitably used in both a solid phase and a liquid phase. The method for producing pigment crystals (S3) from a pigment precursor (S0) using retro Diels-Alder reaction, the method comprising producing the pigment crystals (S3) from the pigment precursor (S0) through a first displacement structure (S1) and a second displacement structure (S2), which differ from the pigment precursor (S0) and the pigment crystals (S3) and also differ from at least from each other.