| 摘要 |
<p>PURPOSE:To provide a static charge image developing toner, with which even at the time of continuously using the toner, stable image density is obtained and stains in the image such as fogging are eliminated and further, contamination of the inside of a printer or copying machine with the scattered toner is reduced by utilizing a specific metal compound of carbonic acid as a component of the toner. CONSTITUTION:This toner comprises at least a resin, a colorant and a metal compound of carbonic acid treated with a fatty acid and 0.5 to 10 pts.wt. of the metal compound of carbonic acid is added to 100 pts.wt. of the resin. Various well-known resins suitable for the toner can be used as this resinous component of the toner. The metal compound of carbonic acid used for this purpose is mainly a metal carbonate compound which contains a metal such as Ca, Mg, Sr, Ba, Mn, Co, Pb, Zn, Ni, K, Li, Cu, etc., and preferably an alkaline earth metal salt, in particular magnesium carbonate or calcium carbonate, and most desirably calcium carbonate.</p> |
