Title:
TONER FOR DEVELOPING ELECTROSTATIC IMAGES
Document Type and Number:
WIPO Patent Application WO/2014/133032
Kind Code:
A1
Abstract:
Provided is a toner which has an excellent balance between thermal storage stability and low-temperature fixability, while having excellent print durability in various temperature/humidity environments from low-temperature low-humidity environments to high-temperature high-humidity environments. A toner for developing electrostatic images, which contains colored resin particles that contain a binder resin, a coloring agent, a softening agent and a fixing assistant, and an external additive. This toner for developing electrostatic images is characterized in that: the fixing assistant is a copolymer of an acrylic acid ester and/or a methacrylic acid ester and an acrylic acid and/or a methacrylic acid; and the copolymer has an acid value of 0.5-7 mgKOH/g, a weight average molecular weight (Mw) of 6,000-50,000 and a glass transition temperature of 60-85°C.
Inventors:
MASUDA AZUSA (JP)
OHTA RYUJI (JP)
OHTA RYUJI (JP)
Application Number:
PCT/JP2014/054742
Publication Date:
September 04, 2014
Filing Date:
February 26, 2014
Export Citation:
Assignee:
ZEON CORP (JP)
International Classes:
G03G9/08
Foreign References:
| JP2012118271A | 2012-06-21 | |||
| JP2007072258A | 2007-03-22 | |||
| JP2006215312A | 2006-08-17 |
Attorney, Agent or Firm:
KISHIMOTO, Tatsuhito et al. (JP)
Kishimoto Expert (JP)
Kishimoto Expert (JP)
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