Coloring composition for color filters containing microencapsulated pigment composed of polyhydroxyalkanoate
申请人:CANON KABUSHIKI KAISHA
公开号:US20030203458A1
公开(公告)日:2003-10-30
The invention provides coloring composition for color filters making use of a pigment, in which the dispersed state of the pigment is stable without using any surfactant, and so aggregation is hard to occur, and which permits formation of high-definition and high-quality images excellent in color rendition, transparency and contrast, and a simple production process thereof, by which the use of surfactants can be abolished, or the amount of surfactants used can be reduced to a great extent. The coloring composition for color filters is provided by using at least a coloring material obtained by coating at least part of surfaces of pigment particles with polyhydroxyalkanoate, and a dispersion medium for the coloring material.
该发明提供了一种用于彩色滤光片的染色组合物,其中颜料的分散状态稳定,不需要使用任何表面活性剂,因此聚集很难发生,并且允许形成高清晰度和高质量的图像,具有出色的色彩再现度、透明度和对比度,以及简单的生产过程,通过该过程可以废除表面活性剂的使用,或者大大减少所使用的表面活性剂的数量。通过使用至少一种染色材料,该染色材料通过在颜料颗粒的至少一部分表面上涂覆聚羟基烷酸酯而获得,并且用于染色材料的分散介质。