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公开(公告)号：EP4002012A1
公开(公告)日：2022-05-25
申请号：EP21207408.2
申请日：2021-11-10
发明人： KOMIYA, Yuta , FUKUDOME, Kosuke , NOZAKI, Dai , URATANI, Kozue , MIZUGUCHI, Takuya , SUGITA, Tomoko
摘要： A toner comprising a toner particle comprising a binder resin, and an ester wax A having a specific structure, wherein in a diffraction spectrum obtained by an X-ray diffractometer after the toner has been allowed to stand at 120°C for 5 minutes and then at 60°C for 5 minutes, assuming that a spectrum having a maximum peak in a range where 2θ is from 5.45° to 5.95° is PI and an integrated intensity of the PI is S1, and a spectrum having a maximum peak in a range where 2θ is from 21.45° to 21.95° is P2 and an integrated intensity of the P2 is S2, relationships of formulas (2) and (3) below are satisfied. S 1 / S 2 ≤ 0.25 S 2 ≥ 1000
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公开(公告)号：EP3792694A1
公开(公告)日：2021-03-17
申请号：EP20195661.2
申请日：2020-09-11
发明人： MIZUGUCHI, Takuya , SUZUMURA, Yoshitaka , TOMONO, Hiroyuki , MATSUSHITA, Osamu , WATANABE, Shuntaro , AKIYAMA, Hiroki , KAGAWA, Hiroki
IPC分类号： G03G9/087
摘要： A toner comprising a toner particle including a binder resin, wherein in a temperature T (°C) - storage elastic modulus G' (Pa) curve obtained by measuring the toner with a rheometer, a storage elastic modulus G' (80°C) at 80°C is from 2.0 × 10 3 Pa to 2.0 × 10 5 Pa; and a local minimum value of a change amount (dG'/dT) of a storage elastic modulus G' in a range of 60°C to 80°C with respect to a temperature T is -1.0 × 10 6 or less, and when the temperature of the toner is raised, where a projected area of the toner at 80°C is S 1 µm 2 ), a radius of the projected area of the toner at 80°C is R 1 (µm), and a projected area of the toner at 120°C is S 2 (µm 2 ), the S 1 , R 1 and S 2 satisfy a following formula (1): S 2 / S 1 × 1 / R 1 ≤ 0.22.
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