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1. 发明专利

JP2017082106A インク及びその製造方法、並びにインク収容容器审中-公开
公开(公告)号：JP2017082106A
公开(公告)日：2017-05-18
申请号：JP2015212323
申请日：2015-10-28
申请人：株式会社リコー , Ricoh Co Ltd
发明人： NAGAI KAZUKIYO , KOIIZUKA YUSUKE , HARADA NARIYUKI , SHIMADA TOMOYUKI , SABE AKIYOSHI , OYAMA KOICHIRO , YAMAZAKI TAKUYA , MATSUYAMA AKIHIKO , YANAGAWA YOSHITERU
IPC分类号： C09D11/326 , B41J2/01 , B41M5/00 , C08F220/34
摘要：【課題】優れた保存安定性を有し、普通紙に記録した場合でも高い画像濃度を得ることができるインクの提供。【解決手段】共重合体と、色材と、水とを含有するインクであって、前記共重合体が、下記一般式(1)で表される構造単位と、アニオン性基を有する構造単位と、を含むインクである。ただし、前記一般式(1)中、Rは水素原子又はメチル基を表し、Xは炭素数2以上4以下のアルキレン基を表し、Yは炭素数6以上13以下の2価の脂環族炭化水素基を表し、更に置換基で置換されていてもよい。【選択図】なし

2. 发明专利

JP2014177529A Inkjet recording ink as well as ink cartridge, inkjet recording device, inkjet recording method, and ink recorded article using the ink 有权
标题翻译：喷墨记录墨盒，墨盒，喷墨记录装置，喷墨记录方法和使用墨水的记录文章
公开(公告)号：JP2014177529A
公开(公告)日：2014-09-25
申请号：JP2013051462
申请日：2013-03-14
申请人： Ricoh Co Ltd , 株式会社リコー , Nof Corp , 日油株式会社
发明人： KATO KEITA , NARUSE MITSURU , MATSUYAMA AKIHIKO , NONOGAKI MASAYASU , HAKIRI MINORU , KOIIZUKA YUSUKE , NAGAI KAZUKIYO , SAKAMOTO NOBUYUKI , MATSUOKA YOSUKE , TAKAHASHI MASATOMO
IPC分类号： C09D11/00 , B41J2/01 , B41M5/00
CPC分类号： C09D11/326 , C09D11/107
摘要： PROBLEM TO BE SOLVED: To provide an inkjet recording ink etc. that can bring about a high image density on a plain paper and has a good storage stability of pigment dispersion and ink.SOLUTION: An inkjet recording ink contains water, a water soluble solvent, a pigment, and a copolymer comprising phosphate group and is characterized in that the copolymer comprising phosphate group comprises a structural unit represented by the following general formula (1) and a glycerin methacrylate structural unit. Rrepresents either a hydrogen atom or a methyl group; Mrepresents any of alkali metal ion, organic amine ion, or hydrogen ion; half or more of Min the copolymer is any of alkali metal ion, organic ammonium ion or organic amine ion, and the remainder is hydrogen ion.
摘要翻译：要解决的问题：提供能够在普通纸上产生高图像浓度的喷墨记录油墨等，并且具有良好的颜料分散体和油墨的储存稳定性。解决方案：喷墨记录油墨含有水，水溶性溶剂颜料和含有磷酸基的共聚物，其特征在于，含有磷酸酯基的共聚物包含由以下通式（1）表示的结构单元和甲基丙烯酸甘油酯结构单元。 R表示氢原子或甲基; M表示任何碱金属离子，有机胺离子或氢离子; 该共聚物的一半以上是碱金属离子，有机铵离子或有机胺离子中的任一种，其余为氢离子。

3. 发明专利

JP2014173081A Ink for inkjet recording, ink container, inkjet recording apparatus, method of producing recorded products, and recorded products 有权
标题翻译：喷墨记录墨盒，墨盒，喷墨记录装置，记录产品生产方法和记录产品
公开(公告)号：JP2014173081A
公开(公告)日：2014-09-22
申请号：JP2013050151
申请日：2013-03-13
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NARUSE MITSURU , NONOGAKI MASAYASU , MATSUYAMA AKIHIKO , KATO KEITA , NAGAI KAZUKIYO , KOIIZUKA YUSUKE
IPC分类号： C09D11/00 , B41J2/01 , B41M5/00
摘要： PROBLEM TO BE SOLVED: To provide an ink for inkjet recording that exhibits high image density and excellent storage stability.SOLUTION: An ink contains a polymer including structures of the specified general formulas (1) and (2). [In the general formula (1), R1 represents a hydrogen atom or a methyl group, and Mrepresents at least one selected from an alkali metal ion, an organic amine ion, and a hydrogen ion. In the general formula (2), R2 represents a methyl group or a hydrogen atom.]
摘要翻译：要解决的问题：提供一种显示高图像密度和优异的储存稳定性的用于喷墨记录的油墨。溶液：油墨含有包含特定通式（1）和（2）的结构的聚合物。 [通式（1）中，R 1表示氢原子或甲基，M表示选自碱金属离子，有机胺离子和氢离子中的至少一种。在通式（2）中，R 2表示甲基或氢原子。]

4. 发明专利

JP2014169398A Inkjet recording ink, ink cartridge, recording method, recording device, and recorded object 有权
标题翻译：喷墨记录墨盒，墨盒，记录方法，记录装置和记录对象
公开(公告)号：JP2014169398A
公开(公告)日：2014-09-18
申请号：JP2013042127
申请日：2013-03-04
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KATO KEITA , NARUSE MITSURU , NONOGAKI MASAYASU , MATSUYAMA AKIHIKO , NAGAI KAZUKIYO , KOIIZUKA YUSUKE
IPC分类号： C09D11/00 , B41J2/01 , B41M5/00
摘要： PROBLEM TO BE SOLVED: To provide an inkjet recording ink yielding a high image density on a plain paper, capable of abating an image strike-through, and having a favorable pigment dispersion stability as a pigment dispersion or ink.SOLUTION: The provided inkjet recording ink is an inkjet recording ink including at least water, a water-soluble solvent, a pigment, and a phosphate group-containing copolymer in which the phosphate group-containing copolymer includes at least a structural unit expressed by the general formula (1), (2) a glyceryl acrylate unit, and (3) a vinylnaphthalene unit (in the general formula (1), R1 expresses a hydrogen atom or methyl group; M expresses a hydrogen atom, alkali metal, or organic ammonium ion; n and m each express integers of 0 to 6 (although the respective values of n and m cannot be 0 simultaneously)).
摘要翻译：要解决的问题：提供能够消除图像穿透的能够在普通纸上产生高图像浓度的喷墨记录油墨，并且具有有利的颜料分散稳定性作为颜料分散体或油墨。溶液：所提供的喷墨记录油墨是至少包含水，水溶性溶剂，颜料和含磷酸基的共聚物的喷墨记录油墨，其中含磷酸酯基的共聚物至少包括由通式（1）表示的结构单元，（2）丙烯酸甘油酯单元和（3）乙烯基萘单元（在通式（1）中，R 1表示氢原子或甲基; M表示氢原子，碱金属或有机铵离子; n和m 每个表示0至6的整数（尽管n和m的相应值不能同时为0））。

5. 发明专利

JP2014136747A Ink for inkjet recording, ink cartridge, method for inkjet recording, apparatus for inkjet recording, ink-recorded article, and method for manufacturing ink-recorded article 有权
标题翻译：用于喷墨记录的墨盒，墨盒，用于喷墨记录的方法，用于喷墨记录的装置，记录文章和制造记录文章的方法
公开(公告)号：JP2014136747A
公开(公告)日：2014-07-28
申请号：JP2013005951
申请日：2013-01-17
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KATO KEITA , NARUSE MITSURU , MATSUYAMA AKIHIKO , NONOGAKI MASAYASU , HAKIRI MINORU , NAGAI KAZUKIYO , KOIIZUKA YUSUKE
IPC分类号： C09D11/00 , B41J2/01 , B41M5/00
CPC分类号： C09D11/36 , B41J2/01 , B41J2/2107 , C09D11/106 , C09D11/30 , C09D11/322 , C09D11/326 , Y10T428/24901
摘要： PROBLEM TO BE SOLVED: To provide an ink for inkjet recording giving a high image density even for plain paper not containing a water-soluble polyvalent metal salt or having a low content of the same, and having a good dispersion stability of pigments.SOLUTION: The ink for inkjet recording used for recording to paper having a concentration of Ca-ions eluted when immersed in pure water of 1.0×10to 5.0×10g/g includes at least a pigment, a pigment dispersant, a water-soluble organic solvent, and a water, where the pigment dispersant is a copolymer synthesized using at least the following monomer (1) and monomer (2). The monomer (1) is an unsaturated ethylenic monomer having a phosphate group or a phosphonic acid group. The monomer (2) is an unsaturated ethylenic monomer having a C12-22 alkyl group.
摘要翻译：要解决的问题：即使对于不含水溶性多价金属盐或具有低含量的普通纸，并且具有良好的颜料分散稳定性的普通纸，提供用于喷墨记录的油墨也能提供高图像浓度。解决方案：用于记录到浸渍在1.0×10至5.0×10g / g的纯水中时洗脱的Ca离子浓度的纸张的喷墨记录用油包括至少颜料，颜料分散剂，水溶性有机溶剂和水，其中颜料分散剂是使用至少以下单体（1）和单体（2）合成的共聚物。单体（1）是具有磷酸基或膦酸基的不饱和乙烯性单体。单体（2）是具有C 12-22烷基的不饱和烯属单体。

6. 发明专利

JP2014101436A Ink for inkjet recording, ink cartridge, inkjet recording method, inkjet recording device, and ink recorded material 有权
标题翻译：喷墨记录墨盒，墨盒，喷墨记录方法，喷墨记录装置和墨盒记录材料
公开(公告)号：JP2014101436A
公开(公告)日：2014-06-05
申请号：JP2012253649
申请日：2012-11-19
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KOIIZUKA YUSUKE , NAGAI KAZUKIYO , NARUSE MITSURU , NONOGAKI MASAYASU , HAKIRI MINORU , MATSUYAMA AKIHIKO , KATO KEITA
IPC分类号： C09D11/00 , B41J2/01 , B41J2/165 , B41J2/175 , B41J2/18 , B41J2/185 , B41M5/00
CPC分类号： C09D11/324 , C09D11/107 , C09D11/322 , Y10T428/24802
摘要： PROBLEM TO BE SOLVED: To provide an ink for inkjet recording which gives high image density even on a plain paper and has good storage stability.SOLUTION: The ink for inkjet recording comprises water, a water-soluble organic solvent, a pigment and a copolymer having at least a structural unit of formula (1), and a specific structural unit. In the formula, Mrepresents a cation of an alkali metal, an organic ammonium ion or a proton; and half or more of Min the copolymer are a cation of an alkali metal and an organic ammonium ion.
摘要翻译：要解决的问题：提供一种用于喷墨记录的油墨，即使在普通纸上也具有高图像浓度，并且具有良好的储存稳定性。解决方案：用于喷墨记录的油墨包括水，水溶性有机溶剂，颜料和共聚物至少具有式（1）的结构单元和具体的结构单元。在该式中，M表示碱金属，有机铵离子或质子的阳离子; Min的一半以上共聚物是碱金属和有机铵离子的阳离子。

7. 发明专利

JP2013025048A Electrophotographic photoreceptor, image forming method using the same, image forming apparatus, and process cartridge for image forming apparatus 审中-公开
标题翻译：电子照相机，图像形成方法，图像形成装置和图像形成装置的处理盒
公开(公告)号：JP2013025048A
公开(公告)日：2013-02-04
申请号：JP2011159317
申请日：2011-07-20
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TANAKA YUJI , NAGAI KAZUKIYO , SUZUKI TETSUO , KOIIZUKA YUSUKE
IPC分类号： G03G5/07 , G03G5/06 , G03G5/147
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor having all of superior mechanical durability of a photoreceptor surface, charge transport property, and stability, in particular to provide a long-life electrophotographic photoreceptor capable of stably outputting a high quality image even under high-humidity and high density oxidized gas exposure conditions, and also provide an image forming method using the electrophotographic photoreceptor, an image forming apparatus, and a process cartridge.SOLUTION: An electrophotographic photoreceptor includes a photosensitive layer on a conductive support. The outermost surface layer of the photosensitive layer contains a three-dimensional cross-linked product obtained through polymerization of a charge-transporting compound (B) having three or more [(tetrahydro-2H-pyran-2-yl) oxy]methyl groups coupled to an aromatic ring and a charge-transporting compound (A) represented by the following formula (1) by reaction in which a part of the [(tetrahydro-2H-pyran-2-yl)oxy]methyl group is cleaved and eliminated. (In the formula, Rand Rrepresent methyl groups, and a and b represent an integer of 0 to 5).
摘要翻译：要解决的问题：提供一种具有感光体表面的所有机械耐久性，电荷传输性和稳定性的电子照相感光体，特别是提供能够稳定地输出高质量图像的长寿命电子照相感光体在高湿度和高密度氧化气体暴露条件下，还提供使用电子照相感光体，图像形成装置和处理盒的成像方法。电解质感光体包括导电性支持体上的感光层。感光层的最表面层含有通过具有三个或更多个[（四氢-2H-吡喃-2-基）氧基]甲基的电荷输送化合物（B）的聚合而获得的三维交联产物，通过其中[（四氢-2H-吡喃-2-基）氧基]甲基的一部分被切割并除去而进行反应，形成由下式（1）表示的芳环和电荷输送化合物（A）。（式中，R 1 ，R 2 表示甲基，a和b表示0〜5的整数）。版权所有（C）2013，JPO＆INPIT

8. 发明专利

JP2012150401A Electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge for image forming apparatus using the same 有权
标题翻译：电子照相机，图像形成方法，图像形成装置和使用其的图像形成装置的处理盒
公开(公告)号：JP2012150401A
公开(公告)日：2012-08-09
申请号：JP2011010764
申请日：2011-01-21
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TANAKA YUJI , NAGAI KAZUKIYO , SUZUKI TETSUO , KOIIZUKA YUSUKE
IPC分类号： G03G5/147 , G03G13/00
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor with high durability that exhibits excellent mechanical durability, electrical characteristics, environmental stability, and gas resistance, and provides high-quality images with less image failure for a long period, as well as an image forming method, an image forming apparatus and a process cartridge using the electrophotographic photoreceptor.SOLUTION: An electrophotographic photoreceptor includes at least a photosensitive layer on a conductive support. The outermost surface layer of the photosensitive layer is formed of a three-dimensional cross-linked film obtained through polymerization of a compound having four [(tetrahydro-2H-pyran-2-yl)oxy]methyl groups on an aromatic ring of a charge transporting compound by reaction in which the [(tetrahydro-2H-pyran-2-yl)oxy]methyl group is cleaved and eliminated. The polymerized compound is a bis(triphenylamine)-based compound having four [(tetrahydro-2H-pyran-2-yl)oxy]methyl groups on the aromatic ring of the charge transporting compound.
摘要翻译：要解决的问题：为了提供具有优异的机械耐久性，电特性，环境稳定性和耐气体性的高耐久性的电子照相感光体，并且能够长时间地提供具有较少图像故障的高质量图像，以及图像形成方法，图像形成装置和使用电子照相感光体的处理盒。解决方案：电子照相感光体在导电性支持体上至少含有感光层。感光层的最表面层由三维交联膜形成，该三维交联膜通过在电荷的芳香环上聚合具有四个[（四氢-2H-吡喃-2-基）氧基]甲基的化合物而获得通过其中[（四氢-2H-吡喃-2-基）氧基]甲基被切割和除去的反应进行转运。聚合的化合物是在电荷输送化合物的芳香环上具有四个[（四氢-2H-吡喃-2-基）氧基]甲基的双（三苯胺）基化合物。版权所有（C）2012，JPO＆INPIT

9. 发明专利

JP2012150400A Electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge for image forming apparatus using the same 有权
标题翻译：电子照相机，图像形成方法，图像形成装置和使用其的图像形成装置的处理盒
公开(公告)号：JP2012150400A
公开(公告)日：2012-08-09
申请号：JP2011010763
申请日：2011-01-21
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAGAI KAZUKIYO , TANAKA YUJI , SUZUKI TETSUO , KOIIZUKA YUSUKE
IPC分类号： G03G5/147
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor with high durability that exhibits extremely high wear resistance after repeated use, provides high-quality images with less image failure for a long period, and has excellent environmental stability and gas resistance, as well as an image forming method, an image forming apparatus, and a process cartridge.SOLUTION: An electrophotographic photoreceptor includes at least a photosensitive layer on a conductive support. The outermost surface layer of the photosensitive layer is formed of a three-dimensional cross-linked film obtained through polymerization of a compound having three or more [(tetrahydro-2H-pyran-2-yl)oxy]methyl groups on an aromatic ring of a charge transporting compound by reaction in which a part of the [(tetrahydro-2H-pyran-2-yl)oxy]methyl group is cleaved and eliminated. An index that indicates the remaining amount of the [(tetrahydro-2H-pyran-2-yl)oxy]methyl groups in the three-dimensional cross-linked film satisfies a specific conditional expression.
摘要翻译：要解决的问题：为了提供重复使用后具有极高耐磨性的高耐久性的电子照相感光体，能够长时间地提供图像故障较少的高质量图像，并且具有优异的环境稳定性和耐气体性，如以及成像方法，图像形成装置和处理盒。解决方案：电子照相感光体在导电性支持体上至少含有感光层。感光层的最外表面层由三维交联膜形成，该三维交联膜通过在芳环上具有三个或更多个[（四氢-2H-吡喃-2-基）氧基]甲基的化合物的聚合而获得通过反应将电荷输送化合物（其中部分[（四氢-2H-吡喃-2-基）氧基]甲基）被切割并除去。指示三维交联膜中[（四氢-2H-吡喃-2-基）氧基]甲基的剩余量的指标满足特定条件表达式。版权所有（C）2012，JPO＆INPIT

10. 发明专利

JP2012150164A Electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge for image forming apparatus using the photoreceptor 有权
标题翻译：电子照相机和图像形成方法，图像形成装置和使用光电转换器的图像形成装置的处理盒
公开(公告)号：JP2012150164A
公开(公告)日：2012-08-09
申请号：JP2011006918
申请日：2011-01-17
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SUZUKI TETSUO , NAGAI KAZUKIYO , YI HONG-GUK
IPC分类号： G03G5/147
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor capable of outputting images of high picture quality with little fluctuation of image density in long-term printing or little unevenness of in-plane density of a printed material, in a photoreceptor having a protective layer formed by three-dimensionally crosslinking a radical polymerizable hole transporting compound or a radical polymerizable monomer by irradiation with UV rays or electron beams on a photoreceptor comprising sequentially deposited layers, and to provide an image forming method, an image forming apparatus and a process cartridge for an image forming apparatus, which employ the above electrophotographic photoreceptor and achieve high picture quality, a long service life and excellent cost performance.SOLUTION: The electrophotographic photoreceptor includes at least a charge generating layer 35, a hole transporting layer 37 and a hole transporting protective layer 39, sequentially layered on a conductive support 31. The hole transporting protective layer 39 comprises a three-dimensional crosslinked film obtained by chain polymerization of at least a radical polymerizable hole transporting compound by irradiation with UV rays or electron beams. The hole transporting protective layer contains a naphthoquinone compound.
摘要翻译：要解决的问题：提供一种电子照相感光体，其能够输出具有高图像质量的图像，其长期印刷中的图像浓度波动较小或印刷材料的平面内密度不均匀，在具有通过在包含顺序沉积的层的感光体上用紫外线或电子束照射三维交联自由基聚合性空穴传输化合物或自由基聚合性单体形成的保护层，并提供图像形成方法，图像形成装置和方法用于图像形成装置的盒，其采用上述电子照相感光体并实现高图像质量，长的使用寿命和优异的成本性能。解决方案：电子照相感光体至少包括电荷产生层35，空穴传输层37和空穴传输保护层39，其依次层叠在导电性载体31上。空穴传输保护层39包括三维交联通过用紫外线或电子束的照射使至少可自由基聚合的空穴传输化合物链聚合获得的膜。空穴传输保护层含有萘醌化合物。版权所有（C）2012，JPO＆INPIT

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