Title:
TONER
Document Type and Number:
WIPO Patent Application WO/2009/107831
Kind Code:
A1
Abstract:
Disclosed is a toner that can realize good running stability while improving low-temperature fixability and can realize the formation of high-definition images having good anti-blocking properties, low-temperature fixation, gloss properties, and anti-penetration properties. When the toner is subjected to a microcompression test at a temperature of (T1 - 10) (°C) wherein T1 (°C) represents the glass transition point of the toner as measured with a differential scanning calorimeter (DSC), the application of a load to particles of the toner from 0.00 N (0.00 mgf) to 7.85 × 10-4 N (80.00 mgf) with 7.85 × 10-7N (0.08 mgf) increments gives a strain value at 7.85 × 10-4 N, i.e., A80a (%), of 35.0 to 75.0%. In a curve of load (x axis) - strain (y axis) obtained by the microcompession test, the ratio between the area (S1a) of a region surrounded by the curve, a straight line at x = 7.85 × 10-4 N, and x axis and the area (S2a) of a region surrounded by a straight line obtained by connecting a point on the curve at x = 3.92 × 10-5 N (4.00 mgf) to a point on the curve at x = 7.85 × 10-5 N (8.00 mgf), a straight line at x = 7.85 × 10-4 N, and x axis, i.e., (S1a/S2a), is 1.5 to 3.5.
Inventors:
AYAKI YASUKAZU (JP)
TANI ATSUSHI (JP)
TOMINAGA TSUNEYOSHI (JP)
TANI ATSUSHI (JP)
TOMINAGA TSUNEYOSHI (JP)
Application Number:
PCT/JP2009/053803
Publication Date:
September 03, 2009
Filing Date:
February 24, 2009
Export Citation:
Assignee:
CANON KK (JP)
AYAKI YASUKAZU (JP)
TANI ATSUSHI (JP)
TOMINAGA TSUNEYOSHI (JP)
AYAKI YASUKAZU (JP)
TANI ATSUSHI (JP)
TOMINAGA TSUNEYOSHI (JP)
International Classes:
G03G9/08; G03G9/087
Foreign References:
| JP2005266383A | 2005-09-29 | |||
| JP2007003694A | 2007-01-11 | |||
| JP2005275146A | 2005-10-06 | |||
| JP2005300937A | 2005-10-27 | |||
| JP2005099085A | 2005-04-14 | |||
| JP2007279652A | 2007-10-25 | |||
| JP2006084952A | 2006-03-30 | |||
| JP2007025525A | 2007-02-01 | |||
| JP2006267950A | 2006-10-05 | |||
| JPH06130713A | 1994-05-13 | |||
| JPH0943896A | 1997-02-14 | |||
| JP2003091093A | 2003-03-28 | |||
| JP2004226572A | 2004-08-12 | |||
| JP2006084743A | 2006-03-30 | |||
| JP2008042970A | 2008-02-21 |
Other References:
See also references of EP 2249207A4
Attorney, Agent or Firm:
OKABE, Masao et al. (Fuji Bldg. 2-3,Marunouchi 3-chom, Chiyoda-ku Tokyo 05, JP)
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