US Patent Application 18182548. TONER AND TWO-COMPONENT DEVELOPER simplified abstract
Contents
TONER AND TWO-COMPONENT DEVELOPER
Organization Name
Inventor(s)
KENTA Mitsuiki of Ibaraki (JP)
HISASUKE Kajihara of Ibaraki (JP)
NOBUHIRO Yoshida of Ibaraki (JP)
KENTARO Kamae of Kanagawa (JP)
KAZUNARI Ooyama of Ibaraki (JP)
NOBUYOSHI Sugahara of Tokyo (JP)
TONER AND TWO-COMPONENT DEVELOPER - A simplified explanation of the abstract
- This abstract for appeared for US patent application number 18182548 Titled 'TONER AND TWO-COMPONENT DEVELOPER'
Simplified Explanation
The abstract describes a toner that contains a binder resin with a crystalline polyester. The toner is subjected to a specific heating and cooling process using differential scanning calorimetry (DSC). The toner is heated to 180°C at a rate of 10°C/min, then cooled to 25°C at a rate of 10°C/min, and further cooled from 25°C to 15°C at a rate of 3°C/min. It is then heated again to 180°C at a rate of 10°C/min.
The abstract states that during the cooling process from 80°C to 40°C, the toner should exhibit an exothermic amount (heat release) of 1.00 J/g or less. During the cooling process from 25°C to 15°C, the toner should have an exothermic amount of 0.10 J/g or more. Additionally, the sum of the endothermic amounts (heat absorption) when the toner is heated from 40°C to 180°C and the sum of the exothermic amounts when the toner is cooled from 180°C to 40°C should satisfy the condition of 2.0 ≤ P3-P4 ≤ 10.0.
Original Abstract Submitted
A toner includes a toner particle containing a binder resin containing a crystalline polyester. In differential scanning calorimetry (DSC), the toner is heated to 180° C. at a rate of 10° C./min, then cooled to 25° C. at a rate of 10° C./min and successively from 25° C. to 15° C. at a rate of 3° C./min, and heated again to 180° C. at a rate of 10° C./min. As a result, an exothermic amount P1 when the toner is cooled from 80° C. to 40° C. is 1.00 J/g or less, an exothermic amount P2 when the toner is cooled from 25° C. to 15° C. is 0.10 J/g or more, and when a sum of endothermic amounts P3 (J/g) when the toner is heated again from 40° C. to 180° C. and a sum of exothermic amounts P4 (J/g) when the toner is cooled from 180° C. to 40° C. satisfies 2.0 ≤ P3-P4 ≤ 10.0.
