Title:
DECOLORABLE TONER AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/1995/012838
Kind Code:
A1
Abstract:
A decolorable toner comprising a dye capable of absorbing visible rays to near-infrared rays, a decoloring agent and a binder resin as the principal components. A binder resin (A) blended with the light-absorbing dye is dispersed in a binder resin B, and a decoloring agent is blended with the binder resins A and/or B. The present invention provides also a method of producing such a toner. The decolorable toner can quickly decolor its color by the exposure to visible rays or near-infrared rays. According to the production method of the present invention, the charge quantity by a chargeable material can easily be adjusted, and the dye does not easily fade during the kneading in the production of the toner.
Inventors:
MUROFUSHI KATSUMI (JP)
HOSODA YOSHIKAZU (JP)
YAMAUCHI AKIRA (JP)
ABE YUKI (JP)
NAGAMI HARUSHI (JP)
YAMAGUCHI KIYOTAKA (JP)
YOSHIDA TAKAYUKI (JP)
UCHINO MITSUHIRO (JP)
HOSODA YOSHIKAZU (JP)
YAMAUCHI AKIRA (JP)
ABE YUKI (JP)
NAGAMI HARUSHI (JP)
YAMAGUCHI KIYOTAKA (JP)
YOSHIDA TAKAYUKI (JP)
UCHINO MITSUHIRO (JP)
Application Number:
PCT/JP1994/001837
Publication Date:
May 11, 1995
Filing Date:
October 31, 1994
Export Citation:
Assignee:
BANDO CHEMICAL IND (JP)
SHOWA DENKO KK (JP)
MUROFUSHI KATSUMI (JP)
HOSODA YOSHIKAZU (JP)
YAMAUCHI AKIRA (JP)
ABE YUKI (JP)
NAGAMI HARUSHI (JP)
YAMAGUCHI KIYOTAKA (JP)
YOSHIDA TAKAYUKI (JP)
UCHINO MITSUHIRO (JP)
SHOWA DENKO KK (JP)
MUROFUSHI KATSUMI (JP)
HOSODA YOSHIKAZU (JP)
YAMAUCHI AKIRA (JP)
ABE YUKI (JP)
NAGAMI HARUSHI (JP)
YAMAGUCHI KIYOTAKA (JP)
YOSHIDA TAKAYUKI (JP)
UCHINO MITSUHIRO (JP)
International Classes:
G03G9/087; G03G9/09; (IPC1-7): G03G9/08
Foreign References:
| JPH05173361A | 1993-07-13 | |||
| JPH05197197A | 1993-08-06 | |||
| JPH05241369A | 1993-09-21 | |||
| JPH05197196A | 1993-08-06 |
Other References:
See also references of EP 0678790A4
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