HYDROPHILIC COLORING MATTER FOR RECORDING IMAGE, AQUEOUS COLORING AGENT FOR RECORDING IMAGE, METHOD AND DEVICE FOR RECORDING IMAGE
申请人:DAINICHISEIKA COLOR
& CHEMICALS MFG. CO. LTD.
公开号:EP1650268A1
公开(公告)日:2006-04-26
Image-recording, hydrophilic colorants represented by the below-described formula (1) are disclosed. These colorants can be provided as colorants capable of forming images excellent in print quality such as chroma, gloss, density, light fastness and abrasion fastness, and also as hydrophilic colorants capable of affording inks excellent in physical properties such as long-term storability and press stability. [organic pigment]−[linking group] −[hydrophilic compound] wherein the [organic pigment] is a hydrophobic pigment having no hydrophilic group by itself, the [linking group] is a group linking the [organic pigment] and the [hydrophilic compound] with each other and blocking an effect of the [hydrophilic compound] on the [organic pigment], and the [hydrophilic compound] is an anionic, cationic and/or nonionic, hydrophilic compound.
本发明公开了以下述式(1)为代表的图像记录型亲水着色剂。这些着色剂既可以作为着色剂形成色度、光泽、密度、耐光性和耐磨性等印刷质量优异的图像,也可以作为亲水性着色剂提供长期储存性和印刷稳定性等物理特性优异的油墨。[有机颜料]-[连接基团]-[亲水性化合物],其中[有机颜料]是一种本身没有亲水基团的疏水性颜料,[连接基团]是将[有机颜料]和[亲水性化合物]相互连接并阻止[亲水性化合物]对[有机颜料]产生影响的基团,[亲水性化合物]是一种阴离子、阳离子和/或非离子亲水性化合物。