发明名称 INK-JET RECORDING METHOD
摘要 <p>An ink-jet recording method including recording onto a recording medium a black image of composite black using a black ink and color inks, wherein the black ink includes water, a water-soluble organic solvent, a surfactant, and a carbon black whose volume average particle diameter is 40 nm to 100 nm, and the color inks include a cyan ink, a magenta ink and a yellow ink, wherein the mass ratio (A/B) of a solid content A to a water-soluble organic solvent content B in the black ink is in the range of 1/8 to 1/15, and wherein the recording medium includes a support with a coating layer, and the amounts of purified water transferred to the recording medium at contact periods of 100 ms and 400 ms at a temperature of 23 C and a relative humidity of 50% are 2 ml/m2 to 35 ml/m2 and 3 ml/m2 to 40 ml/m2 respectively.</p>
申请公布号 EP2064068(A1) 申请公布日期 2009.06.03
申请号 EP20080765870 申请日期 2008.06.26
申请人 RICOH COMPANY, LTD. 发明人 NAGASHIMA, HIDEFUMI;NAGAI, KIYOFUMI
分类号 B41M5/00;B41J2/01;B41J2/175;B41M5/50;B41M5/52;B82Y30/00;C09D11/00;C09D11/322;C09D11/324;C09D11/326;C09D11/328;C09D11/38 主分类号 B41M5/00
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