TONER - CANON KK

Title:

TONER

Document Type and Number:

WIPO Patent Application WO/2009/107830

Kind Code:

A1

Abstract:

A toner is provided which has satisfactory development stability even when improved in low-temperature fixability, and which can form a high-quality image satisfactory in non-infiltrating performance and color gamut performance. The toner is characterized in that the toner, in a dynamic viscoelasticity test, gives a loss tangent (tanδ) curve in which the tanδ has a maximum value (δa) in the temperature range of 28.0-60.0°C, the maximum value (δa) being 0.50 or more, has a minimum value (δb) in the temperature range of 45.0-85.0°C, the minimum value (δb) being 0.60 or less, and has a difference between themaximum value (δa) and the minimum value (δb), δa-δb, of 0.20 or more, and in which when the temperature giving the maximum value (δa) is expressed by Ta(°C) and the temperature giving the minimum value (δb) is expressed by Tb (°C), then the difference between the Ta and the Tb, Tb-Ta, is 5.0-45.0°C. The toner is further characterized in that in the dynamic viscoelasticity test, the toner gives a storage modulus (G') curve in which the storage modulus (G') at the Ta is 1.00×106 to 5.00×107 Pa.

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Inventors:

AYAKI YASUKAZU (JP)
TANI ATSUSHI (JP)
TOMINAGA TSUNEYOSHI (JP)

Application Number:

PCT/JP2009/053801

Publication Date:

September 03, 2009

Filing Date:

February 24, 2009

Export Citation:

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Assignee:

CANON KK (JP)
AYAKI YASUKAZU (JP)
TANI ATSUSHI (JP)
TOMINAGA TSUNEYOSHI (JP)

International Classes:

G03G9/08; G03G9/087

Foreign References:

JP2003330225A	2003-11-19
JPH11288129A	1999-10-19
JP2000047419A	2000-02-18
JP2006235615A	2006-09-07
JPH06130713A	1994-05-13
JP2003091093A	2003-03-28
JP2002287425A	2002-10-03
JP2006235615A	2006-09-07
JP2006091168A	2006-04-06

Other References: