| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain toners which do not generate an uncomfortable feel or harmful smell while maintaining the color of black by using mixed black pigments obtd. by toning >=2 kinds of chromatic org. pigments to black as black pigments. SOLUTION: The mixed black pigments obtd. by toning >=2 kinds of the chromatic org. pigments to black are used as the black pigments of the electrostatic charge image developing black toners for near IR flash fixing consisting of the black pigments, an IR absorbent and a binder resin in place of carbon black. All of known customarily used org. pigments are usable as the chromatic org. pigments of this case and such pigments include, for example, red org. pigments of a quinacridone system and rhodamine system, blue org. pigments of a phthalocyanine system and triphenyl methane system, yellow org. pigments of a benzine system, etc. Blackish hue is obtd. by a combination of non-metal phthalocyanine and perylene pigments, etc., as the mixed black pigments formed of >=2 kinds to be used as the chromatic org. pigments.</p> |
