| 摘要 |
PURPOSE:To get fixability as well as to secure fluidity as a toner and make it excellent in coloring performance in addition, by constituting a developer with those of polyvalent metallic salt of aromatic carboxylic acid and phenolformaldehyde resin. CONSTITUTION:A developer or a dye acceptor for coloring in reaction with dyes or dye precursor is composed of polyvalent metallic salt of aromatic carboxylic acid and phenolnovolak. As material having developability containing those of aromatic carboxylic acid and phenolnovolak, these two types are mixed together, whereby such color formability as making up for mutual developing effects is securable, so that black density is deep, and even in each monochrome of yellow, Magenta, and cyanogen, such coloring as high in brightness and chroma is securable. In addition, in order to impart pressure fixability, soft material such as a sticker and wax or the like is heated and mixed with each other. With this constitution, good flying and transfer can be done and, what is more, such a developer toner composition that is sufficient for black coloring is securable. |
