发明名称 PIGMENT DISPERSION LIQUID, INKJET INK, INK CARTRIDGE, IMAGE FORMING APPARATUS, RECORDING METHOD, AND IMAGE FORMED MATTER
摘要 <P>PROBLEM TO BE SOLVED: To provide a pigment dispersion liquid excellent in storage stability, an inkjet ink containing the same with a high image density, a balance of glossiness of an image part which gives excellent visibility, and touch with a non-image part, improved in plugging of an inkjet head, excellent in discharging stability of the ink liquid and storage stability of the ink, and to provide an ink cartridge, an image forming apparatus, a recording method, and image formed matter. <P>SOLUTION: The invention provides an inkjet pigment dispersion liquid including a carbon black, a dispersant, and water, wherein the total number of coarse particles having a particle diameter of 0.5 &mu;m or greater contained in the inkjet pigment dispersion liquid is 1,000,000/5 &mu;L or less. <P>COPYRIGHT: (C)2011,JPO&INPIT
申请公布号 JP2010261028(A) 申请公布日期 2010.11.18
申请号 JP20100088980 申请日期 2010.04.07
申请人 RICOH CO LTD 发明人 HAKIRI MINORU;NARUSE MITSURU;FUSHIMI HIROYUKI;HASEGAWA SHIN
分类号 B41J2/01;B41M5/00;B41M5/50;B41M5/52;C09C1/48;C09C3/08;C09C3/10;C09D11/00;C09D11/322;C09D11/324;C09D11/326;C09D11/38 主分类号 B41J2/01
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