Appeal 2007-0889
Application 09/935,668
the binder resin contains, as a principal component, a polyester resin
obtained by mixing a first polyester resin with a second polyester resin in a
weight ratio of 80:20 to 20:80;
the fist polyester resin is a crosslinked polyester resin having a
softening point Tsp of not lower than 120ºC and lower than 170ºC, and also
contains 1 to 25 parts by weight of a chloroform-insoluble content as the
component; and
the second polyester resin is a non-crosslinked polyester resin having
a softening point Tsp of not lower than 80ºC and lower than 110ºC, wherein
the toner is capable of being photofixed; and
wherein an acid value of the first polyester resin is from 20 to 40, an
acid value of the second polyester resin is from 5 to 20, and an acid value of
the entire polyester resin is from 15 to 35.
19. An imaging color toner comprising at least a binder resin, a
colorant and an infrared absorber, wherein;
the binder resin contains, as a principal component, a polyester resin
obtained by mixing a first polyester resin with a second polyester resin in a
weight ratio of 80:20 to 20:80;
the first polyester resin is a crosslinked polyester resin having a
softening point Tsp of not lower than 120ºC and lower than 170ºC, and also
contains 1 to 25 parts by weight of a chloroform-insoluble content as the
component; and
the second polyester resin is a non-crosslinked polyester resin having
a softening point Tsp of 110ºC, wherein the toner is capable of being
photofixed; and
wherein an acid value of the first polyester resin is from 20 to 40, an
acid value of the second polyester resin is from 5 to 20, and an acid value of
the entire polyester resin is from 15 to 35.
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