Water-based ink set for ink-jet recording and ink-jet...

Details Water-based ink set for ink-jet recording and ink-jet... Water-based ink set for ink-jet recording and ink-jet...

2006-04-20

2009-10-27

Shah, Manish S (Department: 2853)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S095000, C106S031130

Reexamination Certificate

active

07607772

ABSTRACT:
The water-based ink set for ink-jet recording includes a cyan ink and a blue ink with dynamic surface tensions thereof satisfying the following inequalities (ICB), (IICB), (IIICB) and (IVCB)in-line-formulae description="In-line Formulae" end="lead"?σ30C≦about 49 mN/m  (ICB)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?σ30C+σ30B≦about 100 mN/m  (IICB)in-line-formulae description="In-line Formulae" end="tail"?wherein σ30Cis the dynamic surface tension of the cyan ink at a lifetime of 30 ms and σ30Bis the dynamic surface tension of the blue ink at a lifetime of 30 ms,in-line-formulae description="In-line Formulae" end="lead"?σ1000B≧about 36 mN/m  (IIICB)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?σ1000C+σ1000B≧about 70 mN/m  (IVCB)in-line-formulae description="In-line Formulae" end="tail"?wherein σ1000Cis the dynamic surface tension of the cyan ink at a lifetime of 1,000 ms and σ1000Bis the dynamic surface tension of the blue ink at a lifetime of 1,000 ms.

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