18046585. TONER simplified abstract (CANON KABUSHIKI KAISHA)
Contents
TONER
Organization Name
Inventor(s)
Kenta Kamikura of Kanagawa (JP)
Kozue Uratani of Shizuoka (JP)
TONER - A simplified explanation of the abstract
This abstract first appeared for US patent application 18046585 titled 'TONER
Simplified Explanation
The patent application describes a toner composition used in printing, which consists of toner particles made up of a core particle with a binder resin and a shell with a thermosetting resin. The binder resin can be a vinyl resin, a polyester resin, or a hybrid resin that combines both. The polyester resin contains a cyclic structure and makes up at least 51% of the toner's soluble matter in tetrahydrofuran. The vinyl resin includes specific monomer units, and the thermosetting resin can be melamine, urea, or oxazoline group-bearing vinyl resins. The toner particles have a specific circularity range.
- The toner composition consists of toner particles with a core-shell structure.
- The binder resin in the toner particles can be a vinyl resin, a polyester resin, or a hybrid resin.
- The polyester resin in the toner particles contains a cyclic structure and makes up at least 51% of the toner's soluble matter in tetrahydrofuran.
- The vinyl resin in the toner particles includes specific monomer units.
- The thermosetting resin in the toner particles can be melamine, urea, or oxazoline group-bearing vinyl resins.
- The toner particles have a specific circularity range.
Potential Applications
This toner composition can be used in various printing applications, including laser printers, photocopiers, and digital printing presses.
Problems Solved
The toner composition addresses the need for high-quality and durable prints by providing toner particles with a core-shell structure and specific resin compositions. The inclusion of a thermosetting resin in the shell enhances the adhesion and durability of the toner on various printing substrates.
Benefits
- Improved print quality: The toner composition's specific resin compositions and core-shell structure result in high-quality prints with sharp and vibrant colors. - Enhanced durability: The inclusion of a thermosetting resin in the toner particles improves adhesion and durability on different printing substrates, ensuring long-lasting prints. - Versatile applications: The toner composition can be used in various printing devices, making it suitable for a wide range of printing applications.
Original Abstract Submitted
The toner comprises a toner particle that comprises a binder resin-containing core particle and a thermosetting resin-containing shell on the surface of the core particle, wherein the binder resin includes at least one of (i) a vinyl resin and a polyester resin and (ii) a hybrid resin in which a vinyl resin and a polyester resin are bonded; the polyester resin comprises in a main chain thereof a cyclic structure, and the content of the polyester resin in the tetrahydrofuran-soluble matter of the toner is at least 51 mass%; the vinyl resin comprises a prescribed monomer unit; the thermosetting resin is at least one resin selected from melamine resins, urea resins, and oxazoline group-bearing vinyl resins; and the average circularity of the toner is in a prescribed range.
