Ink set, ink jet recording method, recording unit, ink cartridge and ink jet recording apparatus
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United States of America Patent
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-
Mar 9, 2004
Grant Date -
Feb 14, 2002
app pub date -
Jun 20, 2001
filing date -
Jun 23, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An ink set includes inks each containing a colorant and an aqueous medium, wherein in a fading test under conditions that cause fading corresponding to pseudo-indoor sunlight fading through a window for 3 years or more, the difference between respective images' .DELTA.E, the images being produced with the respective inks, is 10 or less in a CIELAB color space display system, and each of the images has a residual ratio of reflection density of 70% or more. By using the ink set including the color inks with which images having substantially the same fading .DELTA.E after long-term storage are produced, the color balance of a recorded image can be maintained after long-term storage.
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Cited Art Landscape
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