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

2009-11-24

Shah, Manish S (Department: 2853)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S095000

Reexamination Certificate

active

07621628

ABSTRACT:
The water-based ink set for ink-jet recording includes a magenta ink and a red ink with dynamic surface tensions thereof satisfying the following inequalities (IM), (IIM), (IIIM) and (IVM)in-line-formulae description="In-line Formulae" end="lead"?σ30M≦about 49 mN/m  (IM)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?σ30M+σ30R≦about 100 mN/m  (IIM)in-line-formulae description="In-line Formulae" end="tail"?wherein σ30Mis the dynamic surface tension of the magenta ink at a lifetime of 30 ms and σ30Ris the dynamic surface tension of the red ink at a lifetime of 30 ms,in-line-formulae description="In-line Formulae" end="lead"?σ1000R≧about 36 mN/m  (IIIM)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?σ1000M+σ1000R≧about 70 mN/m  (IVM)in-line-formulae description="In-line Formulae" end="tail"?wherein σ1000Mis the dynamic surface tension of the magenta ink at a lifetime of 1,000 ms and σ1000Ris the dynamic surface tension of the red ink at a lifetime of 1,000 ms).

REFERENCES:
patent: 2004/0226468 (2004-11-01), Yamazaki et al.
patent: 2006/0082630 (2006-04-01), Kato et al.
patent: 2006/0189714 (2006-08-01), Kato et al.
patent: H1 95093 (1989-04-01), None
patent: H2 127482 (1990-05-01), None
patent: 2006-063322 (2006-03-01), None

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