CARRIER FOR ELECTROSTATIC CHARGE IMAGE DEVELOPMENT, ELECTROSTATIC CHARGE IMAGE DEVELOPER, DEVELOPER CARTRIDGE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD

• Main Authors: FUKUSHIMA NORITO, HASEGAWA TOSHIAKI, TANABE TAKESHI
• Format: Patent
• Language: English; Japanese
• Published: 22.08.2016
• Subjects: CINEMATOGRAPHY; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HOLOGRAPHY; MAGNETOGRAPHY; PHOTOGRAPHY; PHYSICS

PROBLEM TO BE SOLVED: To provide a carrier for electrostatic charge image development that suppresses an influence of environment to provide stable images.SOLUTION: There is provided a carrier for electrostatic charge image development including core particles and a resin coating layer that coats each of the core particles, where the resin coating layer contains a cationic surfactant and an anionic surfactant, and the total content of the cationic surfactant and the anionic surfactant in the resin coating layer is 0.1 to 6.0 mass% of the entire resin coating layer. The content of the anionic surfactant relative to the total content of the cationic surfactant and the anionic surfactant in the resin coating layer is preferably 30 to 95 mass%.SELECTED DRAWING: None 【課題】環境による影響が抑制され、安定した画像が得られる静電荷像現像用キャリアを提供すること。【解決手段】 芯材粒子と、前記芯材粒子を被覆する樹脂被覆層とを有し、前記樹脂被覆層が、カチオン性界面活性剤及びアニオン性界面活性剤を含有し、樹脂被覆層におけるカチオン性界面活性剤及びアニオン性界面活性剤の総含有量が、樹脂被覆層全体の０．１〜６．０質量％であることを特徴とする静電荷像現像用キャリア。樹脂被覆層に含有されるカチオン性界面活性剤及びアニオン性界面活性剤の総含有量に対するアニオン性界面活性剤の含有量が３０〜９５質量％であることが好ましい。【選択図】なし