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公开(公告)号：EP3909782A1
公开(公告)日：2021-11-17
申请号：EP21173624.4
申请日：2021-05-12
申请人： Ricoh Company, Ltd.
发明人： KUROHA, Mizuki , YOKOHAMA, Yuuki , MIYAAKE, Azumi , TAKAHASHI, Satoshi , OYAMA, Koichiro , SUGITA, Kento
IPC分类号： B41M7/00 , B41J11/00 , C09D11/324
摘要： An image forming device (10;400;1000) includes a black ink applying device (410k;101) configured to apply a black ink to a recording medium, and an irradiator (54;301) configured to expose the recording medium onto which the black ink has been applied to visible light or ultraviolet radiation having a wavelength of 700 nm or less, wherein the black ink comprises water, an organic solvent, carbon black, a resin A, and a resin B, wherein the resin A and the resin B satisfy the following relationship: Tg A B , where Tg A represents the glass transition temperature of the resin A, Tg B represents the glass transition temperature of the resin B, and Ti represents the surface temperature of an image on the recording medium after the recording medium is exposed to the visible light or ultraviolet radiation.
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公开(公告)号：EP3191556A1
公开(公告)日：2017-07-19
申请号：EP15840106.7
申请日：2015-08-31
申请人： Ricoh Company, Ltd.
发明人： YOKOHAMA, Yuuki , MAEKAWA, Tsutomu , BANNAI, Akiko , KOJIMA, Mariko , GOTOU, Hiroshi , NAKAGAWA, Tomohiro
CPC分类号： C09D11/322 , B41J2/17503 , B41J11/002 , C09D11/36 , C09D11/40
摘要： To provide an ink, which contains: water; a pigment; and a first water-soluble organic solvent, wherein the first water-soluble organic solvent contains a water-soluble organic solvent (G) having a boiling point of 280° C. to 300° C., a water-soluble organic solvent (X) having a boiling point of 180° C. to 190° C., and a water-soluble organic solvent (Y) having a boiling point of 190° C. to 200° C., wherein the first water-soluble organic solvent contains a water-soluble organic solvent (G) having a boiling point of 280° C. to 300° C., a water-soluble organic solvent (X) having a boiling point of 180° C. to 190° C., and a water-soluble organic solvent (Y) having a boiling point of 190° C. to 200° C., wherein the ink satisfies the following formulae: 24≦X≦40 2≦X/Y≦20 where X [% by mass] is an amount of the water-soluble organic solvent (X), and Y [% by mass] is an amount of the water-soluble organic solvent (Y).
摘要翻译： 提供一种墨水，其包含：水; 颜料; 和第一水溶性有机溶剂，其中所述第一水溶性有机溶剂含有沸点为280℃至300℃的水溶性有机溶剂（G），沸点为沸点的水溶性有机溶剂（X） 沸点为190℃〜190℃的水溶性有机溶剂（Y）和沸点为190℃〜200℃的水溶性有机溶剂（Y），其中，所述第一水溶性有机溶剂含有沸点为180〜190℃的水溶性有机溶剂 在280〜300℃的温度下，沸点为180〜190℃的水溶性有机溶剂（X）和沸点为190〜200℃的水溶性有机溶剂（Y），其中， 油墨满足下式：24≤X≤402≤X/Y≤20其中X [质量％]是水溶性有机溶剂（X）的量，并且Y [质量％]是 的水溶性有机溶剂（Y）。
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公开(公告)号：EP3308962B1
公开(公告)日：2020-11-11
申请号：EP17204803.5
申请日：2011-07-29
申请人： Ricoh Company, Ltd.
IPC分类号： B41J2/01 , B41M5/00 , C09D11/322 , C09D11/38
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公开(公告)号：EP2686393B1
公开(公告)日：2018-02-07
申请号：EP12757357.4
申请日：2012-03-09
申请人： Ricoh Company, Ltd.
CPC分类号： C09D11/30 , C09D11/322 , C09D11/38
摘要： An inkjet ink, which contains water, an organic solvent, a surfactant, and a colorant, wherein the organic solvent contains at least one polyhydric alcohol having an equilibrium moisture content of 30% by mass or higher at a temperature of 23° C. and humidity of 80% RH, at least an amide compound represented by the general formula (I), and at least one selected from the group consisting of compounds represented by the following general formulae (II) to (IV):
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公开(公告)号：EP2686393A1
公开(公告)日：2014-01-22
申请号：EP12757357.4
申请日：2012-03-09
申请人： Ricoh Company Ltd.
CPC分类号： C09D11/30 , C09D11/322 , C09D11/38
摘要： An inkjet ink, which contains water, an organic solvent, a surfactant, and a colorant, wherein the organic solvent contains at least one polyhydric alcohol having an equilibrium moisture content of 30% by mass or higher at a temperature of 23° C. and humidity of 80% RH, at least an amide compound represented by the general formula (I), and at least one selected from the group consisting of compounds represented by the following general formulae (II) to (IV):
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6.发明公开INKJET RECORDING INK, INKJET RECORDING INKSET, INK CARTRIDGE, INKJET RECORDING METHOD, AND RECORDED MATTER 审中-公开喷墨打印墨水，喷墨记录装置，墨盒，记录方法和喷墨记录的材料
公开(公告)号：EP2342293A1
公开(公告)日：2011-07-13
申请号：EP09823724.1
申请日：2009-10-29
申请人： Ricoh Company, Ltd.
发明人： MATSUYAMA, Akihiko , FUJII, Ichiroh , YOKOHAMA, Yuuki , NAGAI, Kiyofumi , GOTOH, Akihiko , KOJIMA, Mariko , KUDOH, Masaki , NAKAGAWA, Tomohiro
CPC分类号： B41M5/0023 , C09D11/322 , C09D11/38 , C09D11/40
摘要： An inkjet recording ink containing a colorant, a surfactant A, a surfactant B, a water soluble organic solvent, and water, wherein the surfactant A is expressed by any one of Structural Formula (1) and Structural Formula (2), and the surfactant B is expressed by Structural Formula (3): in Structural Formula (1), R1 represents hydrogen, an alkyl group, or an acyl group; Rf represents -CF
3 or -CF
2 CF
3 ; and m, n and p are natural numbers; in Structural Formula (2), M represents alkali metal, ammonium, phosphonium, or alkanolamine; Rf represents -CF
3 or -CF
2 CF
3 ; and q is a natural number; in Structural Formula (3), R
3 and R
4 each represent hydrogen or an alkyl group; and r, s, t and u are natural numbers.-
7.发明公开INKJET INK, INK CARTRIDGE, INKJET RECORDING METHOD, INKJET RECORDING DEVICE, AND INKJET RECORDED MATTER 审中-公开喷墨记录装置，喷墨墨盒，喷墨记录方法，喷墨记录装置和喷墨记录物
公开(公告)号：EP3308962A1
公开(公告)日：2018-04-18
申请号：EP17204803.5
申请日：2011-07-29
申请人： Ricoh Company Ltd.
IPC分类号： B41J2/01 , B41M5/00 , C09D11/322 , C09D11/38
摘要： To provide an inkjet ink, which contains: water; a wetting agent; a surfactant; a colorant; and a resin, wherein the wetting agent contains at least an amide compound represented by the following structural formula (I):
摘要翻译： 提供一种喷墨墨水，其包含：水; 润湿剂; 表面活性剂; 着色剂; 和树脂，其中所述润湿剂至少含有由以下结构式（I）表示的酰胺化合物：
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公开(公告)号：EP2766439B8
公开(公告)日：2016-06-22
申请号：EP12839341.0
申请日：2012-10-12
申请人： Ricoh Company, Ltd.
发明人： GOTO, Hiroshi , FUJII, Hidetoshi , YOKOHAMA, Yuuki
IPC分类号： C09D11/00 , B41J2/01 , B41M5/00 , C09D11/38 , C09D11/322
CPC分类号： C09D11/30 , B41M5/52 , B41M5/5218 , B41M5/5236 , B41M5/5245 , B41M5/5254 , C09D11/322 , C09D11/38
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9.发明公开
公开(公告)号：EP2445979A1
公开(公告)日：2012-05-02
申请号：EP10792230.4
申请日：2010-06-23
申请人： Ricoh Company Ltd.
CPC分类号： B41J2/2107 , B41J2/2114 , B41M5/0023 , C09D11/322 , C09D11/326 , C09D11/40
摘要： An ink for inkjet recording, containing: dispersed particles A; dispersed particles B; a water-soluble solvent; a surfactant; and water, wherein the dispersed particles A are coloring particles obtained by dispersing an organic pigment in water with assistance of a surfactant, and the dispersed particles B are coloring particles obtained by dispersing a polymer-coated organic pigment in water.
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公开(公告)号：EP1989267A1
公开(公告)日：2008-11-12
申请号：EP07737736.4
申请日：2007-02-27
申请人： Ricoh Company, Ltd.
发明人： YOKOHAMA, Yuuki , INOUE, Tomohiro
CPC分类号： B41J2/14274 , B41J2/1433 , B41J2/1606 , C09D11/322 , C09D11/38
摘要： The present invention aims to obtain a highly reliable inkjet recording apparatus using a nozzle plate which is excellent not only in ink repellency at the initial stage of the lifetime thereof but also excellent in mechanical durability against wiping, and the like. For this end, the present invention provides an inkjet recording apparatus which is equipped with at least an ink flying unit configured to fly an inkjet recording ink by applying an impulse to the inkjet recording ink to form an image, wherein the nozzle plate surface of an inkjet head in the ink flying unit has an ink repellent layer containing a silicone resin; and the inkjet recording ink contains at least a pigment, water, a fluorochemical surfactant, and a nonionic surfactant.
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