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US 2020/0103774 A1Published application
Magnetic toner
AssigneeCanon Kabushiki Kaisha
InventorsKosuke Fukudome, Tetsuya Kinumatsu, Yusuke Hasegawa
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Abstract
A magnetic toner comprising a magnetic toner particle including a binder resin, a magnetic body and a crystalline polyester, wherein a storage elastic modulus E′(40) [Pa] at 40° C. and a storage elastic modulus E′(85) [Pa] at 85° C., which are obtained in a powder dynamic viscoelasticity measurement of the magnetic toner, satisfy the following formulas (1) to (3). E′(40)≥6.0×109 (1) E′(85)≤5.5×109 (2) [E′(40)−E′(85)]×100/E′(40) (3)
Claims9
A magnetic toner comprising a magnetic toner particle including a binder resin, a magnetic body and a crystalline polyester, wherein
- a storage elastic modulus E′(40) [Pa] at 40° C. and a storage elastic modulus E′(85) [Pa] at 85° C., which are obtained in a powder dynamic viscoelasticity measurement of the magnetic toner, satisfy the following formulas (1) to (3):
- E′(40)≥6.0×109 (1)
- E′(85)≤5.5×109 (2), and
- [E′(40)−E′(85)]×100/E′(40)≥40 (3)
1 more element
Dependencies are inferred from the claim text.