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1.发明公开RECORDING INK, INK CARTRIDGE, INK MEDIA SET, INK- JET RECORDING METHOD AND INK-JET RECORDING APPARATUS 审中-公开记录墨水，墨盒，油墨介质组，喷墨记录方法和喷墨记录仪
公开(公告)号：EP2052044A1
公开(公告)日：2009-04-29
申请号：EP08765738.3
申请日：2008-06-12
申请人： Ricoh Company, Ltd.
CPC分类号： C09C1/565 , B41M5/0023 , C01P2006/22 , C09C1/56 , C09D11/38 , C09D11/40
摘要： An ink-jet recording ink including a colorant dispersible in water, a water-soluble organic solvent used as a wetting agent, a surfactant, a penetrant, a water-dispersible resin, and water, wherein when 2.5 g of the ink is weighed, placed in a glass Petri dish having a diameter of 33 mm and stored for 24 hr at a temperature of 50° C.±0.5° C. and a humidity of 12%±5%, the evaporation rate of a solvent (water+water-soluble organic solvent) in the ink is 50% by weight or more, and an ink residue has a viscosity of 20,000 mPa-S or greater, and wherein by storing the ink residue for 6 hr at a temperature of 23° C.±0.5° C. and a high humidity of 95%±3% to allow it to absorb moisture, the amount of moisture contained in the ink residue becomes 30% by weight to 40% by weight, in which case the ink residue has a viscosity of less than 500 mPa s.
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2.发明公开INK FOR INKJET RECORDING, INK SET FOR INKJET RECORDING, INK MEDIA SET FOR INKJET RECORDING, INK CARTRIDGE, INKJET RECORDING METHOD, AND INKJET RECORDING APPARATUS 有权墨水喷墨记录组，油墨组，喷墨记录油墨介质组的喷墨记录，墨盒，记录方法和喷墨油墨，喷墨记录装置
公开(公告)号：EP2061846A1
公开(公告)日：2009-05-27
申请号：EP07806803.8
申请日：2007-08-30
申请人： Ricoh Company, Ltd.
发明人： NAMBA, Michihiko , MATSUYAMA, Akihiko , MOROHOSHI, Naoya , OHSHIMA, Tohru , KOYANO, Masayuki , GOTOH, Akihiko , NAGAI, Kiyofumi
CPC分类号： C09D11/40 , B41M5/0023 , C09D11/322 , C09D11/38
摘要： To provide an ink for inkjet recording containing water, water-soluble organic solvent, water-dispersible resin, fluorochemical surfactant or derivative thereof, and coloring agent containing pigment, wherein the ink has a surface tension of 20-35 mN/n and viscosity of 5 mPa·s or more at 25°C, total amount of the water-dispersible resin and the coloring agent in the ink is 5-40% by mass, and mass ratio A/B of the water-dispersible resin A to the coloring agent B is 0.5-4, wherein the ink is applied for a recording medium for inkjet recording containing a support containing cellulose pulp, and one or more barrier layers disposed on at least one face of the support, and wherein the barrier layer contains 30% by mass or more of inorganic pigment having refractive index of 1.5 or more, excluding aluminum hydrate, and 10% by mass or more of inorganic pigment having a refractive index of less than 1.5.
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公开(公告)号：EP2555878B1
公开(公告)日：2017-12-13
申请号：EP11766046.4
申请日：2011-04-08
申请人： Ricoh Company, Ltd.
发明人： ARUGA, Tamotsu , SENO, Shinya , KOYANO, Masayuki , NODA, Eiji , TAKEUCHI, Noriyasu , MAEKAWA, Tsutomu , HIRAOKA, Takao , HASEGAWA, Tomoko , KIMURA, Okitoshi , NOGUCHI, Soh
CPC分类号： B05D1/36 , B05D1/26 , B05D3/067 , B05D5/02 , B05D5/06 , B29C35/08 , B41M3/003 , B41M7/0081 , C09D5/006 , C09D11/101 , Y10T428/24612 , Y10T428/24802
摘要： To provide a method of producing a film, comprising: ejecting a liquid B over a liquid surface of an active energy ray-curable liquid as a liquid A by an inkjet process, according to a predetermined periodic signal; and subsequently applying an active energy ray to the liquid A and the liquid B so as to perform curing and obtain a film which comprises a pattern according to any one of (1) to (4) below, (1) a smooth pattern having a periodic amplitude based upon a trigonometric function, (2) a pattern having a periodic depression, (3) a pattern in the form of a periodic flat surface, and (4) a pattern having a periodic semicylindrical shape.
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4.发明授权INK FOR INKJET RECORDING, INK SET FOR INKJET RECORDING, INK MEDIA SET FOR INKJET RECORDING, INK CARTRIDGE, INKJET RECORDING METHOD, AND INKJET RECORDING APPARATUS 有权墨水喷墨记录组，油墨组，喷墨记录油墨介质组的喷墨记录，墨盒，记录方法和喷墨油墨，喷墨记录装置
公开(公告)号：EP2061846B1
公开(公告)日：2015-10-07
申请号：EP07806803.8
申请日：2007-08-30
申请人： Ricoh Company, Ltd.
发明人： NAMBA, Michihiko , MATSUYAMA, Akihiko , MOROHOSHI, Naoya , OHSHIMA, Tohru , KOYANO, Masayuki , GOTOH, Akihiko , NAGAI, Kiyofumi
CPC分类号： C09D11/40 , B41M5/0023 , C09D11/322 , C09D11/38
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公开(公告)号：EP3981605A3
公开(公告)日：2022-05-04
申请号：EP21187311.2
申请日：2021-07-22
申请人： Ricoh Company, Ltd.
发明人： YAMAMOTO, Sei , NAKAGAWA, Tomohiro , UMEMURA, Kazuhiko , KOYANO, Masayuki , HIROKAWA, Yuya , SAIGA, Takuya , HAGIWARA, Hiroki
摘要： A printing method includes: a processing fluid applying step of applying a processing fluid containing silica and a multivalent metal salt to a print medium (1); and an ink applying step of applying an ink containing a coloring material and water to the print medium (1). The print medium (1) has a Cobb water absorption of 20 g/m 2 or greater but 75 g/m 2 or less when contacted with water for 120 seconds. The Cobb water absorption is stipulated by JIS-P8140.
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公开(公告)号：EP2555878A1
公开(公告)日：2013-02-13
申请号：EP11766046.4
申请日：2011-04-08
申请人： Ricoh Company, Ltd.
发明人： ARUGA, Tamotsu , SENO, Shinya , KOYANO, Masayuki , NODA, Eiji , TAKEUCHI, Noriyasu , MAEKAWA, Tsutomu , HIRAOKA, Takao , HASEGAWA, Tomoko , KIMURA, Okitoshi , NOGUCHI, Soh
CPC分类号： B05D1/36 , B05D1/26 , B05D3/067 , B05D5/02 , B05D5/06 , B29C35/08 , B41M3/003 , B41M7/0081 , C09D5/006 , C09D11/101 , Y10T428/24612 , Y10T428/24802
摘要： To provide a method of producing a film, comprising: ejecting a liquid B over a liquid surface of an active energy ray-curable liquid as a liquid A by an inkjet process, according to a predetermined periodic signal; and subsequently applying an active energy ray to the liquid A and the liquid B so as to perform curing and obtain a film which comprises a pattern according to any one of (1) to (4) below, (1) a smooth pattern having a periodic amplitude based upon a trigonometric function, (2) a pattern having a periodic depression, (3) a pattern in the form of a periodic flat surface, and (4) a pattern having a periodic semicylindrical shape.
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7.发明公开
公开(公告)号：EP4157953A1
公开(公告)日：2023-04-05
申请号：EP21722570.5
申请日：2021-04-27
申请人： Ricoh Company, Ltd.
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公开(公告)号：EP3981605A2
公开(公告)日：2022-04-13
申请号：EP21187311.2
申请日：2021-07-22
申请人： Ricoh Company, Ltd.
发明人： YAMAMOTO, Sei , NAKAGAWA, Tomohiro , UMEMURA, Kazuhiko , KOYANO, Masayuki , HIROKAWA, Yuya , SAIGA, Takuya , HAGIWARA, Hiroki
摘要： A printing method includes: a processing fluid applying step of applying a processing fluid containing silica and a multivalent metal salt to a print medium (1); and an ink applying step of applying an ink containing a coloring material and water to the print medium (1). The print medium (1) has a Cobb water absorption of 20 g/m 2 or greater but 75 g/m 2 or less when contacted with water for 120 seconds. The Cobb water absorption is stipulated by JIS-P8140.
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公开(公告)号：EP2178993B1
公开(公告)日：2018-06-13
申请号：EP08873471.0
申请日：2008-09-18
申请人： Ricoh Company, Ltd.
CPC分类号： B41M5/0023 , C09D11/322 , C09D11/38 , C09D11/40
摘要： An ink set includes at least two aqueous inks A and B with different colors, the inks A and B used in an inkjet recording method in which the inks A and B are superimposed for formation of a color image, wherein the ink A contains water-dispersible colorant A1 free of a surfactant-based dispersant, and anionic compound A2, and wherein the ink B contains water-dispersible colorant B1 containing a surfactant-based dispersant.
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