20240027929. TONER simplified abstract (CANON KABUSHIKI KAISHA)

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TONER

Organization Name

CANON KABUSHIKI KAISHA

Inventor(s)

KENJI Ookubo of Shizuoka (JP)

NAOYA Isono of Shizuoka (JP)

MASAYA Komuro of Shizuoka (JP)

TONER - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240027929 titled 'TONER

Simplified Explanation

The abstract describes a toner composition that includes a toner base particle and an organosilicon polymer on the surface of the toner base particle. The organosilicon polymer forms protruded portions on the surface of the toner base particle. The toner particle is subjected to a reciprocating shaking test, and the change in the coated area of the toner particle before and after the test is measured. The values obtained are used to calculate the sc/s ratio and the difference between the sc/s ratio before and after the test. The storage elastic modulus of the toner at 100°C is also specified.

  • The toner composition includes a toner base particle and an organosilicon polymer on its surface.
  • Protruded portions formed by the organosilicon polymer are present on the surface of the toner base particle.
  • The toner particle is subjected to a reciprocating shaking test.
  • The change in the coated area of the toner particle before and after the test is measured.
  • The sc/s ratio (coated area of the toner base particle to the total area of the toner particle) is calculated before and after the test.
  • The difference between the sc/s ratio before and after the test is determined.
  • The storage elastic modulus of the toner at 100°C is specified to be between 8000 and 50,000 Pa.

Potential applications of this technology:

  • Toner for use in laser printers, photocopiers, and other printing devices.
  • Toner for use in digital printing processes.
  • Toner for use in high-speed printing applications.

Problems solved by this technology:

  • Improved toner adhesion to the surface of the toner base particle.
  • Reduced toner agglomeration during printing processes.
  • Enhanced print quality and durability.

Benefits of this technology:

  • Improved image resolution and sharpness.
  • Reduced toner waste and improved efficiency.
  • Extended printer and photocopier lifespan.
  • Enhanced print durability and resistance to smudging or fading.


Original Abstract Submitted

a toner comprising a toner particle comprising: a toner base particle; and an organosilicon polymer at a surface of the toner base particle, wherein protruded portions constituted from the organosilicon polymer are present at the surface of the toner base particle, when a specific reciprocating shaking test is carried out, the toner particle is measured in terms of a total area s of a surface of the toner particle and an area sc of regions of the surface of the toner base particle coated with the organosilicon polymer at the surface of the toner particle before and after the test, values of sc/s for the toner particle before and after the test are respectively defined as rand r, the value of ris 0.30 to 0.70, a value of (r−r)/ris 0.20 or less, and a storage elastic modulus at 100� c. of the toner is 8000 to 50,000 pa.

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