To obtain a resin for toners, or a toner, which is superior in the quickness in its rise of charging to a sufficient charge quantity in a short time, in the stability of charging that extends from the initial stage up to the printing on a large number of sheets, and in the stability of charging that comes in a high-temperature and high-humidity environment. As a charge control resin, it is characterized by containing a specific unit having sulfonic acid or a sulfonate as a substituent and a specific unit having a salicylic acid derivative.
为了获得一种
树脂用于制造色调剂或色调剂本身,该色调剂在短时间内快速充电至足够的充电量,充电稳定性从初始阶段延伸到大量打印的稳定性,并且在高温高湿环境下具有充电稳定性。作为一种电荷控制
树脂,其特点在于含有具有
磺酸基团或
磺酸盐作为取代基的特定单元和具有
水杨酸衍
生物的特定单元。