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11. 发明专利

JP2006030981A Toner, method for producing the same, developer using the toner, container holding toner, process cartridge, image forming apparatus and image forming method 有权
标题翻译：调色剂，其制造方法，使用调色剂，容器保持调色剂，方法盒，成像装置和图像形成方法的开发者
公开(公告)号：JP2006030981A
公开(公告)日：2006-02-02
申请号：JP2005174352
申请日：2005-06-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TANAKA CHIAKI , ISHII MASAYUKI , WATANABE SHINKO , SAITO TAKUYA , NAITO HIROSHI
IPC分类号： G03G9/087 , G03G9/08 , G03G9/097
摘要： PROBLEM TO BE SOLVED: To provide respective color toners excellent in charging performance, surface property etc., to provide a producing method which is efficient and hardly imposes a load to environment, and also to provide a developer, a container holding toner, a process cartridge, and an image forming method which permits higher image by using the toner. SOLUTION: The method for producing toner has such a process that resin fine particles and colorant are brought into contact with at least one of supercritical fluid and subcritical fluid and, thereby, the resin fine particles are colored with the colorant. The toner is produced according to the producing method. The developer, container holding toner, process cartridge, image forming method, and image forming apparatus are provided with the toner. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供充电性能，表面性等优异的各色调色剂，以提供一种效率高且难以对环境施加负载的制造方法，并且还提供显影剂，容器保持调色剂，处理盒，以及通过使用调色剂允许较高图像的图像形成方法。解决方案：调色剂的制造方法具有使树脂微粒和着色剂与超临界流体和亚临界流体中的至少一种接触的方法，由此树脂细颗粒被着色剂着色。根据制造方法制造调色剂。显影剂，容器保持调色剂，处理盒，成像方法和图像形成装置设置有调色剂。版权所有（C）2006，JPO＆NCIPI

12. 发明专利

JP2005173050A Toner for image formation, developer, and image forming apparatus 有权
标题翻译：图像形成，开发者和图像形成装置的调色剂
公开(公告)号：JP2005173050A
公开(公告)日：2005-06-30
申请号：JP2003410882
申请日：2003-12-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： IWATA CHIKAYUKI , YAMASHITA YUJI , WATANABE YOICHIRO , OTANI SHINJI , SUGIYAMA KOSHIN , SAITO TAKUYA
IPC分类号： G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide an excellent toner for image formation which provides appropriate image gloss and has excellent offset preventiveness even in a fixing system which does not involve coating application of a mold release oil to a fixing roller or in which the oil coverage is made slight. SOLUTION: The toner for image formation contains at least a colorant and a binder resin, wherein the binder resin contains a denatured polyester-based resin (C) obtained by reacting a denatured polyester-based resin (A) having an area reactable with a compound having an active hydrogen group and an extender/crosslinking agent (B) and an undenatured polyester-based resin (D), and the denatured polyester-based resin (C) is dispersed in the toner at ≤400 nm in the linear length at the toner section. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供用于图像形成的优异调色剂，其提供适当的图像光泽并且即使在不涉及将定影辊涂布到脱模油的定影系统中也具有优异的防偏移性，油覆盖度轻微。图像形成用调色剂至少含有着色剂和粘合剂树脂，其中，所述粘合剂树脂含有变性聚酯类树脂（C），所述变性聚酯类树脂（C）通过使具有可区域反应的变性聚酯类树脂（A）具有活性氢基团的化合物和增量剂/交联剂（B）和未变性的聚酯类树脂（D），并且变性的聚酯类树脂（C）以线性方式分散在调色剂中≤400nm 调色剂部分的长度。版权所有（C）2005，JPO＆NCIPI

13. 发明专利

JP2005172998A Electrophotographic toner and method for preparing the same 有权
标题翻译：电子显影剂及其制备方法
公开(公告)号：JP2005172998A
公开(公告)日：2005-06-30
申请号：JP2003410297
申请日：2003-12-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMASHITA YUJI , SUGIYAMA KOSHIN , WATANABE YOICHIRO , SAITO TAKUYA , OTANI SHINJI
IPC分类号： G03G9/08 , G03G9/087 , G03G15/01 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To reduce the effects of a dispersant in a suspension polymerization method, an emulsion polymerization-aggregation method and a polymer suspension method and a compound used in a polyaddition reaction on the chargeability of toner, to obtain necessary electrostatic properties, and to provide electrophotographic toner which has good cleaning performance, suffers little burying of a plasticizer into the toner surface during use and is nearly free of excess plasticizer not sticking to the toner, and a method for preparing the same. SOLUTION: In the method for preparing the toner in an aqueous medium, (A) a surfactant having a polarity different from that of a polar group on the surface of the toner and (B) inorganic fine particles are added after a step of granulating a toner composition to prepare toner particles. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题为了减少悬浮聚合法中的分散剂，乳液聚合聚集法和聚合物悬浮法以及在加聚反应中用于调色剂的带电性的化合物的效果，以获得必需的静电并且提供具有良好清洁性能的电子照相调色剂，在使用过程中几乎不会将增塑剂埋入调色剂表面，并且几乎不含不会粘附到调色剂上的过量增塑剂及其制备方法。解决方案：在水性介质中制备调色剂的方法中，（A）在调色剂表面上极性不同于极性基团的表面活性剂和（B）无机细颗粒在步骤将调色剂组合物制粒以制备调色剂颗粒。版权所有（C）2005，JPO＆NCIPI

14. 发明专利

JP2005099657A Electrophotographic toner and method for manufacturing the same 审中-公开
标题翻译：电子照相色彩及其制造方法
公开(公告)号：JP2005099657A
公开(公告)日：2005-04-14
申请号：JP2003406821
申请日：2003-12-05
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： OTANI SHINJI , YAMASHITA YUJI , WATANABE YOICHIRO , SUGIYAMA KOSHIN , SAITO TAKUYA
IPC分类号： G03G9/087 , G03G9/097
摘要： PROBLEM TO BE SOLVED: To provide organic particulates with which extremely simple but secure surface treatment can be performed and in which the flexibility in the kinds of reforming agents is high and which permits the impartation of only the desired functionality without the adverse effects of a morphology change, etc., due to heat and impact at all relating to functional organic particulates formed by subjecting the organic particulates manufactured by a suspension polymerization method, an emulsification polymerization flocculation method, a polymer suspension method, etc., to the surface treatment for the purpose of imparting the functionality thereto and a treatment method for the same. SOLUTION: The method for manufacturing the functional organic particulates by generating the organic particulates in an aqueous medium comprises reacting a tri- or higher-valent metal ion with an acid group on the surface of the organic particulates after the emulsification or suspension dispersion process; and further, reacting an organic acid or organic acid salt with the metal. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供可以进行非常简单但可靠的表面处理的有机颗粒，其中重整剂类型的柔性高，并且仅允许所需功能性而不产生不利影响的形态变化等，由于与通过将由悬浮聚合法制造的有机微粒，乳化聚合絮凝法，聚合物悬浮法等形成的功能性有机颗粒的热和冲击相关联到表面用于赋予其功能的目的的治疗及其治疗方法。解决方案：通过在水性介质中产生有机颗粒来制造功能性有机颗粒的方法包括在乳化或悬浮分散后在有机颗粒的表面上使三价或更高价金属离子与酸基反应处理; 此外，使有机酸或有机酸盐与金属反应。版权所有（C）2005，JPO＆NCIPI

15. 发明专利

JP2005049483A Electrostatic charge image developing toner 审中-公开
标题翻译：静电充电图像显影剂
公开(公告)号：JP2005049483A
公开(公告)日：2005-02-24
申请号：JP2003204258
申请日：2003-07-31
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAITO TAKUYA , YAMASHITA YUJI , WATANABE YOICHIRO , SUGIYAMA KOSHIN
IPC分类号： G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide an electrostatic charge image developing toner with which a visible image having favorable sharpness can be formed for a long time while keeping low temperature fixing property/offset resistance. SOLUTION: The toner is obtained by dissolving or dispersing a resin-coloring agent composite material containing a coloring agent and a binder resin (1) containing at least a polyester resin having a group which can react with a compound having active hydrogen, together with a release agent in an organic solvent, further dispersing the solution or the dispersion liquid in an aqueous medium to granulate toner particles, removing the organic solvent, rinsing and drying. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种静电荷图像显影调色剂，其中可以长时间形成具有良好锐度的可见光图像，同时保持低温定影性/抗偏移性。解决方案：调色剂是通过将含有着色剂和粘合剂树脂（1）的树脂着色剂复合材料溶解或分散而成的，所述树脂着色剂复合材料至少含有具有可与具有活性氢的化合物反应的基团的聚酯树脂，与脱模剂一起在有机溶剂中，将溶液或分散液进一步分散在水性介质中以造粒调色剂颗粒，除去有机溶剂，漂洗和干燥。版权所有（C）2005，JPO＆NCIPI

16. 发明专利

JP2004117912A Electrostatic charge image developing toner 有权
公开(公告)号：JP2004117912A
公开(公告)日：2004-04-15
申请号：JP2002281900
申请日：2002-09-26
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAITO TAKUYA , SUGIYAMA KOSHIN , WATANABE YOICHIRO , YAMASHITA YUJI , SUZUKI MASANORI
IPC分类号： G03G9/08 , G03G9/087 , G03G9/097
摘要： PROBLEM TO BE SOLVED: To provide an electrostatic charge image developing toner capable of forming visible images with good sharpness over a prolonged period of time, having excellent low temperature fixability and anti-offsetting property, and not causing contamination of a fixing device and images, and to provide a developer containing the toner, a container holding the toner, an image forming method using the toner, and an image forming apparatus filled with the toner. SOLUTION: The electrostatic charge image developing toner is obtained by dissolving or dispersing a toner composition containing a modified polyester resin capable of reacting with active hydrogen in an organic solvent, reacting the resulting solution or dispersion with a cross-linking agent and/or an extender in an aqueous medium containing fine resin particles, and removing the solvent of the dispersion. The toner binder resin includes an unmodified polyester resin as well as the modified polyester resin. At least styrene and methacrylic acid are used as monomers as starting materials of the fine resin particles. When the weight proportion of the styrene to the starting materials of the fine resin particles is represented by a [wt.%] and that of the methacrylic acid by b [wt.], the expressions 10≤a≤51, 15≤b≤51 and 0.4≤a/b≤2.5 are satisfied at the same time. COPYRIGHT: (C)2004,JPO

17. 发明专利

JP2004085743A Image forming color toner, image forming apparatus and toner bottle 有权
公开(公告)号：JP2004085743A
公开(公告)日：2004-03-18
申请号：JP2002244496
申请日：2002-08-26
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SUZUKI MASANORI , SAITO TAKUYA , YAMASHITA YUJI , WATANABE YOICHIRO , TAKADA TAKESHI , SUGIYAMA KOSHIN , MOCHIZUKI MASARU , IWAMOTO YASUTAKA , KOIKE TAKAYUKI
IPC分类号： G03G9/08 , G03G9/087 , G03G9/09
CPC分类号： G03G9/08797 , G03G9/08755 , G03G9/08764 , G03G9/08768 , G03G9/08782 , G03G9/08791 , G03G9/08795
摘要： PROBLEM TO BE SOLVED: To provide color toner giving a moderate image gloss and excellent color reproducibility, having a satisfactory anti-offsetting property even in a fixing method in which a fixing roller is not coated with releasing oil or the coating weight of oil is made extremely small, and further having excellent transferability, durability and stability of a charged state to humidity, and to provide an image forming apparatus using the toner and a toner bottle filled with the toner. SOLUTION: The image forming color toner is releasing agent-containing toner obtained by dissolving a toner composition material including a modified polyester resin capable of forming urea bonding in an organic solvent in a releasing agent-containing aqueous medium, allowing a polyaddition reaction to take place in the aqueous medium, removing the solvent of the resulting dispersion and carrying out washing, wherein a modified resin containing the above releasing agent is dispersed in a binder resin in an undissolved state, and in the modified resin, at least part of the releasing agent has been modified with a vinyl monomer having an average ester group concentration of 8 to 30 wt.%. COPYRIGHT: (C)2004,JPO

18. 发明专利

JP2007163587A Process for manufacturing electrostatic charge image developing toner 审中-公开
标题翻译：制造静电荷图像显影剂的方法
公开(公告)号：JP2007163587A
公开(公告)日：2007-06-28
申请号：JP2005356456
申请日：2005-12-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAITO TAKUYA , MATSUOKA SONOO , YAMAGUCHI HIDEYUKI
IPC分类号： G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide an electrostatic charge image developing toner capable of stably producing a toner which is satisfactory in dispersibility of a coloring agent in a full-color copying machine, is high in coloring power, provides high image density, is high in saturation and excellent in transparency, is excellent in light resistance and dose not fade color, by an industrially realizable process. SOLUTION: The process for manufacturing the electrostatic charge image developing toner comprises dissolving or dispersing a binder resin or a precursor of the binder resin and a coloring agent into at least an organic solvent, and dispersing the solution or dispersion liquid in an aqueous medium, then removing the organic solvent and washing and drying the dispersion. The method is characterized in that firstly the coloring agent is used as a coloring agent dispersion resin preliminarily kneaded in the binder resin; secondly the dissolution or dispersion into the organic solvent comprises a process of dispersing the coloring agent dispersion resin into the organic solvent B, then dispersing the same into the organic solvent A; and thirdly, the dielectric constant of the organic solvent A is smaller than the dielectric constant of the organic solvent B. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供能够稳定地生产在全色复印机中着色剂分散性令人满意的调色剂的静电电荷显影调色剂，着色力高，提供高图像密度，饱和度高，透明度优异，通过工业上可实现的工艺，耐光性和剂量不褪色。解决方案：制造静电荷图像显影调色剂的方法包括将粘合剂树脂或粘合剂树脂的前体和着色剂溶解或分散在至少一种有机溶剂中，并将该溶液或分散液分散在水性培养基，然后除去有机溶剂并洗涤和干燥分散体。该方法的特征在于，首先将着色剂用作在粘合剂树脂中预先捏合的着色剂分散树脂; 其次，溶解或分散在有机溶剂中包括将着色剂分散树脂分散到有机溶剂B中，然后将其分散到有机溶剂A中的方法; 第三，有机溶剂A的介电常数小于有机溶剂B的介电常数。（C）2007，JPO＆INPIT

19. 发明专利

JP2007077338A Method for producing toner for developing electrostatic charge image 审中-公开
标题翻译：用于生产用于开发静电荷图像的调色剂的方法
公开(公告)号：JP2007077338A
公开(公告)日：2007-03-29
申请号：JP2005269417
申请日：2005-09-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MATSUOKA SONOO , SAITO TAKUYA , TAKAHASHI HIROSHI , KURODA NOBORU , NISHIZAKI TOSHINAGA
IPC分类号： C08J3/03 , B01F3/08 , G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a toner that has a sharp particle size distribution with ease and without waste, in a continuous emulsification method for producing emulsified particles, by keeping the particle size always stable through a long enduring emulsification process, and that, as a result, has a good development property and can make an image of high quality for a long period of time. SOLUTION: The method for producing a toner for developing an electrostatic charge image via a process of removing a solvent from an emulsified dispersion, that is prepared by emulsifying/dispersing an oil phase comprised at least of a coloring material, a binder resin, and a solvent, in an aqueous medium, comprises obtaining the emulsified dispersion by an emulsifying method of feeding the oil phase and the aqueous medium continuously into an emulsifier, and controlling fluctuation of an internal pressure P of the emulsifier within a range of ±10 kPa during the continuous emulsification. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：待解决的问题：为了提供一种在生产乳化颗粒的连续乳化方法中，通过长时间保持粒子总是稳定的方法来提供容易且无浪费的具有尖锐的粒度分布的调色剂的方法乳化过程，结果，具有良好的显影性能，可以长时间形成高质量的图像。解决方案：通过从乳化分散体中除去溶剂的方法制备用于显影静电荷图像的调色剂的方法，其通过乳化/分散至少包含着色材料的油相，粘合剂树脂和水性介质中的溶剂包括通过将油相和水性介质连续进料到乳化剂中的乳化方法获得乳化分散体，并且将乳化剂的内部压力P的波动控制在±10的范围内 kPa连续乳化。版权所有（C）2007，JPO＆INPIT

20. 发明专利

JP2006268026A Toner, developer, toner charged container, process cartridge, apparatus and method for image forming 有权
标题翻译：调色剂，开发商，调色剂充电容器，过程盒，图像形成装置和方法
公开(公告)号：JP2006268026A
公开(公告)日：2006-10-05
申请号：JP2006040942
申请日：2006-02-17
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： UCHINOKURA OSAMU , TOMITA MASAMI , NAKAJIMA HISASHI , MOCHIZUKI MASARU , IWAMOTO YASUTAKA , ASAHINA YASUO , SASAKI FUMIHIRO , KOBAN AKIHIRO , SUGIURA HIDEKI , ICHIKAWA TOMOYUKI , SAITO TAKUYA , NAKAYAMA SHINYA , SAKATA KOICHI , MATSUOKA SONOO
IPC分类号： G03G9/08 , G03G5/08 , G03G9/087 , G03G9/097 , G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a method and an apparatus for image forming using a fixing device of an electromagnetic induction heating system, and to provide a toner, a developer, a container charged with toner, and a process cartridge to be used for the above apparatus and method. SOLUTION: The method for image forming includes an electrostatic latent image forming step, a developing step, a transferring step and a fixing step, wherein a fixing device comprising a magnetic metal and employing an electromagnetic induction heating system is used in the fixing step. The toner comprises a toner material containing at least an active hydrogen group-containing compound and a polymer reactive with the active hydrogen group-containing compound. The toner comprises toner matrix particles having 3 to 7 μm volume average particle size (Dv), 1.01 to 1.25 ratio (Dv/Dn) of the volume average particle size (Dv) to the number average particle size (Dn), having 20 number% proportion of particles having 0.6 to 2.0 μm particle size, and having the average circularity of 0.93 to 0.99. An external additive is added by 0.3 to 5.0 parts by mass to 100 parts by mass of the toner matrix particles. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种使用电磁感应加热系统的定影装置的成像方法和装置，并且提供调色剂，显影剂，带有调色剂的容器和处理盒用于上述装置和方法。解决方案：图像形成方法包括静电潜像形成步骤，显影步骤，转印步骤和定影步骤，其中使用磁性金属并采用电磁感应加热系统的定影装置用于固定步。该调色剂包含至少含有含活性氢基团的化合物和与含活性氢基团化合物反应的聚合物的调色剂材料。调色剂包括具有3至7μm体积平均粒径（Dv），体积平均粒径（Dv）至数均粒径（Dn）的1.01至1.25比（Dv / Dn）与20数量的调色剂基质颗粒粒径为0.6〜2.0μm的粒子的比例为％，平均圆形度为0.93〜0.99。相对于100质量份调色剂基质颗粒，外加添加剂0.3〜5.0质量份。版权所有（C）2007，JPO＆INPIT

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