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71. 发明专利

JP2011145650A Method of fixing toner, image forming method, and image forming apparatus 有权
标题翻译：固定墨粉的方法，图像形成方法和图像形成装置
公开(公告)号：JP2011145650A
公开(公告)日：2011-07-28
申请号：JP2010236460
申请日：2010-10-21
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAKAJIMA YUKIKO , WATANABE YOICHIRO , SHIDARA YASUSADA , NAKAYAMA SHINYA , MORIYA YOSHIHIRO , INOUE RYUTA , SABE AKIYOSHI , SAKASHITA SHINGO , KATANO YASUO
IPC分类号： G03G11/00 , G03G9/08 , G03G9/087 , G03G9/113 , G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide: a method of fixing toner using a fixing solution containing a softening agent which dissolves or swells resin of toner, the method allows fixing of the toner at high speed with a little amount of the fixing solution; an image forming method; and an image forming apparatus. SOLUTION: In the method of fixing toner to a medium 12 by applying the fixing solution 14 containing the softening agent which softens the toner by dissolving or swelling at least a part of binding resin contained in the toner to the toner on the medium, the BET specific surface area of the toner is in the range from 2.0 to 8.0 m 2 /g. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决问题的方案：提供：使用含有溶解或溶胀调色剂树脂的软化剂的定影液固定调色剂的方法，该方法允许用少量定影液高速定影调色剂 ; 图像形成方法; 和图像形成装置。解决方案：在通过施加包含软化剂的定影液14的方法中，通过将调色剂中包含的粘合树脂的至少一部分溶解或溶胀到介质上的调色剂来使调色剂软化，，调色剂的BET比表面积在2.0至8.0m 2 / SP / g的范围内。版权所有（C）2011，JPO＆INPIT

72. 发明专利

JP2011013245A Toner for electrostatic charge development 有权
标题翻译：用于静电充电开发的调色剂
公开(公告)号：JP2011013245A
公开(公告)日：2011-01-20
申请号：JP2009154499
申请日：2009-06-30
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： INOUE RYUTA , KOBAN AKIHIRO , SABE AKIYOSHI , SAKASHITA SHINGO , NAKAJIMA YUKIKO , OSAKA KEIKO
IPC分类号： G03G9/08 , G03G9/087 , G03G9/10
CPC分类号： G03G9/0806 , G03G9/08711 , G03G9/08755 , G03G9/08791 , G03G9/08797
摘要： PROBLEM TO BE SOLVED: To provide a toner for obtaining images excellent in low temperature fixability, image density, a degree of haze and environmental variation, while securing anti-hot offset even when using polylactic acid.SOLUTION: In the toner in which resin particles (A) containing at least a first resin (a) and a film (P) containing the resin (a) comprise resin particles (C) of a structure adhered on the surface of resin particles (B) containing a second resin (b), the resin (b) contains polyhydroxycarboxylic acid skelton, and the resin (a) is a polyester resin. The toner for electrostatic charge development consists of polybasic acid and polyhydric alcohol.
摘要翻译：要解决的问题：提供一种用于获得低温定影性，图像密度，雾度和环境变化优异的图像的调色剂，同时在使用聚乳酸的同时确保防止热偏移。溶解性：在其中树脂颗粒含有至少含有第一树脂（a）的树脂（A）和含有树脂（a）的薄膜（P）包含粘附在含有第二树脂（b）的树脂颗粒（B）的表面上的结构的树脂颗粒（C）树脂（b）含有聚羟基羧酸骨架，树脂（a）是聚酯树脂。用于静电荷显影的调色剂由多元酸和多元醇组成。

73. 发明专利

JP2010266839A toner 有权
标题翻译：碳粉
公开(公告)号：JP2010266839A
公开(公告)日：2010-11-25
申请号：JP2009219078
申请日：2009-09-24
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SABE AKIYOSHI , KOBAN AKIHIRO , INOUE RYUTA , OSAKA KEIKO , SAKASHITA SHINGO , NAKAJIMA YUKIKO , MOCHIZUKI MASARU
IPC分类号： G03G9/087 , G03G9/08 , G03G9/09 , G03G9/097
CPC分类号： G03G9/08755 , G03G9/08762 , G03G9/09708 , G03G9/09716 , G03G9/09741 , G03G9/09766 , G03G9/09775 , G03G2215/0602
摘要： PROBLEM TO BE SOLVED: To provide a toner for obtaining high-quality images with superior color reproducibility, less difference in gloss and durability of images hardly causing offset, and to provide the toner for stably forming images for an extended period of time with gloss uniformity in an image part and in a non-image part on normal paper in an inexpensive process without causing offset. SOLUTION: The toner contains a resin (a), wherein the resin (a) has a polyhydroxycarboxylic acid skeleton formed from an optically active monomer, the polyhydroxycarboxylic acid skeleton has a weight average molecular weight of from 7,000 to 60,000, the proportion of the polyhydroxycarboxylic acid skeleton in the whole binder resin of the toner ranges from 10 to 90 mass%, and the optical purity X (%) of the polyhydroxycarboxylic acid skeleton in terms of monomer components represented by X(%)=¾X(L-isomer)-X(D-isomer)¾ is not more than 80%. In the expression, X(L-isomer) and X(D-isomer) represent ratios (mol%) of L-isomer and D-isomer in terms of optically active monomers, respectively. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供用于获得具有优异的颜色再现性的高质量图像的调色剂，几乎不引起偏移的图像的光泽度和耐久性的差异较小，并且提供用于在长时间内稳定地形成图像的调色剂在廉价的处理中，在图像部分和普通纸上的非图像部分中具有光泽均匀性而不会产生偏移。解决方案：调色剂含有树脂（a），其中树脂（a）具有由光学活性单体形成的聚羟基羧酸骨架，聚羟基羧酸骨架的重均分子量为7,000至60,000，比例在调色剂的整个粘合剂树脂中的聚羟基羧酸骨架的摩尔比为10〜90质量％，以X（％）=¾X（L-1）表示的单体成分的聚羟基羧酸骨架的光学纯度X（％异构体）-X（D-异构体）3不大于80％。在该表达式中，X（L-异构体）和X（D-异构体）分别代表旋光活性单体的L-异构体和D-异构体的比例（mol％）。版权所有（C）2011，JPO＆INPIT

74. 发明专利

JP2010224517A TONER FOR ELECTROSTATIC LATENT IMAGE DEVELOPMENT 审中-公开
公开(公告)号：JP2010224517A
公开(公告)日：2010-10-07
申请号：JP2009283964
申请日：2009-12-15
申请人： RICOH CO LTD
发明人： KOBAN AKIHIRO , SAWADA TOYOSHI , INOUE RYUTA , SABE AKIYOSHI , SAKASHITA SHINGO , OSAKA KEIKO , NAKAJIMA YUKIKO
IPC分类号： G03G9/087 , G03G9/08
摘要： PROBLEM TO BE SOLVED: To provide a toner having good low temperature fixability and high transparency without decreasing dispersibility of a colorant. SOLUTION: The toner is produced by mixing and dispersing a preliminary mixture of at least a colorant and a thermoplastic resin (a) with a thermoplastic resin (b). The thermoplastic resin (a) includes an amorphous polyester resin including at least a polyhydroxycarboxylic acid skeleton in a part of the main chain. The thermoplastic resin (a) includes a polyhydroxycarboxylic acid skeleton formed of optically-active monomers. The polyhydroxycarboxylic acid skeleton formed of the optically-active monomers has an optical purity represented by X(%)=¾X(L-isomer)-X(D-isomer)¾ of preferably ≤85% in terms of monomer components. In the formula, X(L-isomer) and X(D-isomer) represent molar ratios (mol%) of L-isomers and D-isomers, respectively, in terms of optically-active monomers. COPYRIGHT: (C)2011,JPO&INPIT

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