| 摘要 |
<p>PURPOSE:To improve the dependence characteristics of a polymer toner having a small particle size on environmental humidity by depositing a silicone oil having specified viscosity on the surface of the polymer toner having a specified particle size produced by polymn. method. CONSTITUTION:A silicone oil having <=300cs viscosity is deposited by 0.01-5 pts.wt. on the surface of a polymer toner by 100 pts.wt. having 2mum-10mum average particle size produced by polymn. method. If the toner has <=2mum average particle size, surface fogging on copies and bad cleaning property is caused. If the toner has >=100mum average particle size, picture qualities, especially resolution, become bad. If the vicosity of the silicone oil exceeds 300cs, the silicone oil cannot be uniformly applied on the toner surface when the silicone oil is to be deposited on the polymer toner. If the add amt. of the oil is less than 0.01 pts.wt., the effect to improve dependence characteristics of the polymer toner on humidity is not obtd., while if the amt. exceeds 5 pts.wt., the viscosity of the polymer toner increases, which decreases the fluidity of the toner to cause blocking.</p> |
