Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Reexamination Certificate
2011-08-02
2011-08-02
Shah, Manish S (Department: 2853)
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
C347S095000, C106S031270
Reexamination Certificate
active
07988277
ABSTRACT:
An ink set is provided which can suppress bleeding irrespective of the type of recording medium. The ink set includes a plurality of aqueous inks each containing a dye, and has at least a first aqueous ink containing a dye, wherein the difference between the dynamic surface tension of the first aqueous ink at a lifetime of 50 milliseconds and the dynamic surface tension of the first aqueous ink at a lifetime of 500 milliseconds is 7 mN/m or more; and, between the first aqueous ink and at least one type of aqueous ink except the first aqueous ink included in the ink set, dynamic surface tension γa(mN/m) of an ink A having relatively higher lightness at a lifetime of 500 milliseconds and dynamic surface tension γb(mN/m) of an ink B having relatively lower lightness at a lifetime of 500 milliseconds satisfy −5≦(γa−γb)≦3.
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Kudo Satoshi
Moribe Kenji
Sanada Mikio
Yamakami Hideki
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Shah Manish S
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