Image-forming liquid medium containing microcapsules filled with dyes and image-forming apparatus using such liquid medium
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United States of America Patent
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Jun 5, 2001
Grant Date -
N/A
app pub date -
Dec 29, 1998
filing date -
Jan 6, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An image-forming liquid medium comprised of a solution containing a surface-active agent, and at least two types of microcapsule mixed with the solution. A first type of microcapsule is filled with a first dye, and a second type of microcapsule is filled with a second dye. A first shell of the first type microcapsule is formed of a first resin that exhibits a first characteristic such that, when the first type microcapsule is squashed and broken under simultaneous application of a first pressure at a first temperature, the first dye seeps from the squashed and broken microcapsule. A second shell of the second type of microcapsule is formed of a second resin that exhibits a second characteristic such that, when the second type microcapsule is squashed and broken under simultaneous application of a second pressure at a second temperature, the second dye seeps from the squashed and broken microcapsule.
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