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US 4,395,288 AGranted
Liquid recording medium
AssigneeCanon Kabushiki Kaisha
InventorsTsuyoshi Eida, Yasuhiro Yano, Masahiro Haruta, Yohji Matsufuji, Tokuya Ohta
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AssigneeCanon Kabushiki Kaisha
InventorsTsuyoshi Eida, Yasuhiro Yano, Masahiro Haruta, Yohji Matsufuji, Tokuya Ohta
Estimating the term…
A liquid recording medium for use in a recording process, wherein said recording medium is discharged from a discharge orifice in a recording head and spattered in the form of droplets for recording, and containing (a) a recording agent for forming recorded images and (b) a carrier liquid capable of dissolving or dispersing the recording agent. The recording agent is a compound having 2-8 sulfo groups per molecule and having the formula (A) ##STR1## where the Q.sub.1 radicals are similar or dissimilar members selected from phenylene and naphthylene, the Q.sub.2 radicals are similar or dissimilar members selected from phenyl and naphthyl, the Q.sub.1 radicals and the Q.sub.2 radicals may be unsubstituted or amino substituted, hydroxyl substituted or sulfo substituted, R.sub.1 -R.sub.6 are similar or dissimilar members selected from hydrogen, amino, hydroxyl and sulfo, and said sulfo groups as mentioned above are all in the form of sodium salt or quaternary ammonium salt.
In an ink jet recording process for discharging a liquid recording medium in the form of droplets for recording from a discharge orifice in a recording head, the improvement which comprises employing a liquid recording medium comprising:
In an ink jet recording process for discharging a liquid recording medium in the form of droplets for recording from a discharge orifice in a recording head, the improvement which comprises employing a liquid recording medium comprising:
Dependencies are inferred from the claim text.