发明名称 WATER-BASED RECORDING LIQUID AND RECORDING METHOD USING THE SAME
摘要 <P>PROBLEM TO BE SOLVED: To provide a water-based recording liquid for ink-jet recording, effective for reducing pH variation even in the case of using a coloring agent having large pH variation with time, unsusceptible to polyvalent metals existing in the recording liquid composition in an extremely small amount and having excellent ejection stability and provide a recording method to use the recording liquid. <P>SOLUTION: The water-based recording liquid at least comprises a coloring agent, water and a water-soluble organic solvent and further comprises a hypophosphorous acid salt. <P>COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2007063454(A) 申请公布日期 2007.03.15
申请号 JP20050253095 申请日期 2005.09.01
申请人 RICOH CO LTD 发明人 HIGETA SHIGERU;OSADA NOBUTAKA
分类号 B41J2/01;B41M5/00;C09D11/00;C09D11/322;C09D11/324;C09D11/326;C09D11/328;C09D11/38 主分类号 B41J2/01
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