专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2014063117A Toner, developer, and image forming device 有权
标题翻译：调色剂，开发商和图像形成装置
公开(公告)号：JP2014063117A
公开(公告)日：2014-04-10
申请号：JP2013004595
申请日：2013-01-15
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： AMEMORI SUZUKA , YAMAMOTO JUNJI , YAMADA MASAHIDE , NAKAJIMA YUKIKO , NAKAYAMA SHINYA , SANTO HIDEYUKI
IPC分类号： G03G9/08 , G03G9/087 , G03G9/10 , G03G15/08
CPC分类号： G03G9/08764 , G03G9/08782 , G03G9/08797 , G03G9/09733
摘要： PROBLEM TO BE SOLVED: To provide toner excellent in heat-resistant preservability, low-temperature fixability, and transferability.SOLUTION: Toner contains crystalline resin having at least one of urethane bond and urea bond, and a compound represented by the following general formula (1). The content of the compound represented by the following general formula (1) is 0.01-0.25 mass%: CHR (1), wherein n represents 8-22, and R represents any of COOH, NH, and OH.
摘要翻译：要解决的问题：提供耐热保存性，低温定影性和转印性优异的调色剂。溶液：调色剂含有具有氨基甲酸酯键和脲键中的至少一个的结晶性树脂和由以下通式表示的化合物 1）。由以下通式（1）表示的化合物的含量为0.01-0.25质量％：CHR（1），其中n表示8-22，R表示COOH，NH和OH中的任一种。

2. 发明专利

JP2014052559A Toner, developer using the toner, and image forming apparatus 审中-公开
标题翻译：调色剂，使用调色剂的开发商和图像形成装置
公开(公告)号：JP2014052559A
公开(公告)日：2014-03-20
申请号：JP2012197906
申请日：2012-09-07
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAMOTO JUNJI , NAKAYAMA SHINYA , SHIBA MASAKATA , NAKAJIMA YUKIKO , AMEMORI SUZUKA , YAMADA MASAHIDE
IPC分类号： G03G9/087 , G03G9/08 , G03G9/10 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a toner that contains a binder resin having pigment uniformly dispersed therein, excellent in low-temperature fixability, and having practically satisfactory mechanical strength of output images.SOLUTION: There is provided (1) a toner containing at least a crystalline resin as a binder resin, and having a primary amino group in the density of 0.1 to 10 μmol/g; and the toner according to (1) in which in a diffraction spectrum of the toner obtained by an X-ray diffraction device, when the integrated intensity of a spectrum derived from a crystalline structure of the binder resin is (C), and the integrated intensity of a spectrum derived from an amorphous structure is (A), the ratio (C)/[(C)+(A)] is 0.15 or more.
摘要翻译：要解决的问题：提供一种含有均匀分散有颜料的粘合剂树脂的调色剂，其低温定影性优异，并且具有实际上令人满意的输出图像的机械强度。调色剂：提供（1）至少含有至少作为粘结剂树脂的结晶性树脂，其密度为0.1〜10μmol/ g的伯氨基; 和根据（1）的调色剂，其中当衍生自粘合剂树脂的结晶结构的光谱的积分强度为（C）时，其中在通过X射线衍射装置获得的调色剂的衍射光谱中，来自非晶结构的光谱强度为（A），比率（C）/ [（C）+（A）]为0.15以上。

3. 发明专利

JP2013164607A Toner, two-component developer, process cartridge, and image forming apparatus 有权
标题翻译：调色剂，双组分开发商，工艺盒和图像形成装置
公开(公告)号：JP2013164607A
公开(公告)日：2013-08-22
申请号：JP2013075655
申请日：2013-04-01
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAMOTO JUNJI , NAKAYAMA SHINYA , YAMADA MASAHIDE , SANTO HIDEYUKI , YAMASHITA DAIKI , INOUE RYUTA
IPC分类号： G03G9/087 , G03G9/08 , G03G9/10
CPC分类号： G03G9/08755 , G03G9/08764 , G03G9/08793 , G03G9/08795 , G03G9/08797
摘要： PROBLEM TO BE SOLVED: To provide toner having a sufficient charge amount, having less charge environment variation, and capable of showing sufficient fixing performance, in the toner comprising crystalline resin as binder resin.SOLUTION: In the toner comprising at least the crystalline resin as the binder resin, a weight-average molecular weight of a THF-soluble component of the toner is 20,000 or more, and a 50% wettability (W(50%)) by a methanol wettability test is 20 (vol%) or more.
摘要翻译：要解决的问题：在包含结晶树脂作为粘合剂树脂的调色剂中，提供具有足够电荷量的具有较少电荷环境变化并且能够显示足够的定影性能的调色剂。溶液：在至少包含结晶树脂为粘合剂树脂，调色剂的THF可溶性组分的重均分子量为20,000以上，通过甲醇润湿性试验为50％润湿性（W（50％））为20（vol％）以上。

4. 发明专利

JP2013140333A Toner, developer and image forming apparatus 审中-公开
标题翻译：调色剂，开发商和图像形成装置
公开(公告)号：JP2013140333A
公开(公告)日：2013-07-18
申请号：JP2012246266
申请日：2012-11-08
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SABE AKIYOSHI , MORIYA YOSHIHIRO , NEMOTO TAICHI , YAMAUCHI SHOKEI , NAKAJIMA YUKIKO , MAKABE KEIJI , AMEMORI SUZUKA , YAMASHITA DAIKI , YAMADA MASAHIDE
IPC分类号： G03G9/087 , G03G15/08 , G03G15/20
CPC分类号： G03G9/08755 , B82Y30/00 , G03G9/0806 , G03G9/0821 , G03G9/08788 , G03G9/08795 , G03G9/08797 , Y10S977/773
摘要： PROBLEM TO BE SOLVED: To provide a polylactic acid-based toner excellent in low-temperature fixability and heat-resistant storage properties, the toner capable of suppressing reduction in image density and occurrence of transfer unevenness at continuous printing, and also excellent in fine line reproducibility.SOLUTION: A toner includes a first binder resin and a second binder resin. The first binder resin is obtained by block copolymerization of at least a polyester skeleton A including a constitutional unit having a hydroxy carboxylic acid dehydrated and condensed in a repeating structure, and a skeleton B including no constitutional unit having a hydroxy carboxylic acid dehydrated and condensed in a repeating structure. The first binder resin has glass transition temperatures Tg1 and Tg2 measured by differential scan calorimetry at a temperature-rising rate of 5°C/min. The Tg1 is from -20°C to 20°C, and the Tg2 is from 35°C to 65°C. The second binder resin is a crystalline resin.
摘要翻译：要解决的问题：为了提供低温定影性和耐热储存性优异的聚乳酸类调色剂，能够抑制连续印刷时的图像浓度降低和转印不均匀性的调色剂，并且还具有优异的细线再现性。解决方案：调色剂包括第一粘合剂树脂和第二粘合剂树脂。第一粘结剂树脂通过至少包含具有重复脱水和缩合的羟基羧酸的结构单元的聚酯骨架A和不含具有脱水和缩合羟基羧酸的结构单元的骨架B进行嵌段共聚而获得重复结构。第一粘合剂树脂具有通过差示扫描量热法以5℃/ min的升温速度测量的玻璃化转变温度Tg1和Tg2。 Tg1为-20℃〜20℃，Tg2为35℃〜65℃。第二粘合剂树脂是结晶树脂。

5. 发明专利

JP2013137493A Electrophotographic toner, developer, and image forming apparatus 有权
标题翻译：电子墨粉，开发者和图像形成装置
公开(公告)号：JP2013137493A
公开(公告)日：2013-07-11
申请号：JP2012111401
申请日：2012-05-15
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAKAJIMA YUKIKO , YAMADA MASAHIDE , NAKAYAMA SHINYA , YAMAMOTO JUNJI , SANTO HIDEYUKI , SAKASHITA SHINGO , AMEMORI SUZUKA , YAMASHITA YUJI , WATANABE MASAKI
IPC分类号： G03G9/097 , G03G9/08 , G03G9/087 , G03G9/10
摘要： PROBLEM TO BE SOLVED: To provide a toner that has excellent low-temperature fixability, hot-offset resistance, and heat-resistance storage stability, solves problems of filming to a carrier and poor rubbing resistance of output images due to insufficient stress resistance of toner, and has excellent chargeability and charge stability for a long period of stirring.SOLUTION: An electrophotographic toner contains at least a binder resin, colorant, a mold release agent, and a charge control agent. The binder resin contains 50 weight% or more of a crystalline resin; the crystalline resin has an urethane bond and/or an urea bond; and the charge control agent is a calixarene derivative represented by the following general formula (I).
摘要翻译：要解决的问题：为了提供具有优异的低温定影性，耐热胶印性和耐热性储存稳定性的调色剂，解决了由于调色剂的耐压性不足导致的对载体的成膜和输出图像的耐摩擦性差的问题并且在长时间的搅拌下具有优异的带电性和电荷稳定性。解决方案：电子照相调色剂至少含有粘合剂树脂，着色剂，脱模剂和电荷控制剂。粘合剂树脂含有50重量％以上的结晶性树脂; 结晶性树脂具有氨基甲酸酯键和/或脲键; 并且电荷控制剂是由以下通式（I）表示的杯芳烃衍生物。

6. 发明专利

JP2013120270A Toner and developer 审中-公开
标题翻译：调色板和开发者
公开(公告)号：JP2013120270A
公开(公告)日：2013-06-17
申请号：JP2011267863
申请日：2011-12-07
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SABE AKIYOSHI , MORIYA YOSHIHIRO , NEMOTO TAICHI , YAMAUCHI SHOKEI , NAKAJIMA YUKIKO , AMEMORI SUZUKA , MAKABE KEIJI , YAMASHITA DAIKI , YAMADA MASAHIDE
IPC分类号： G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a polylactic acid-based toner which is excellent in low-temperature fixability and heat-resistant preservability and in which occurrences of toner scattering and surface staining are suppressed during continuous printing.SOLUTION: There is provided toner containing a first binder resin and a second binder resin, where the first binder resin is obtained by block copolymerization of at least a polyester skeleton A having a constitutional unit formed by dehydration condensation of hydroxycarboxylic acid in a repeating structure and a skeleton B not having a constitutional unit formed by dehydration condensation of hydroxycarboxylic acid in a repeating structure and has glass transition temperature Tg1 and Tg 2 as measured by differential scanning calorimetry at a heating rate of 5°C/min in which the Tg1 is -20°C to 20°C, the Tg2 is 35°C to 65°C, and the second binder resin has glass transition temperature Tg3 of 35°C to 65°C.
摘要翻译：要解决的问题：提供低温定影性和耐热保存性优异的聚乳酸类调色剂，并且在连续印刷期间抑制了调色剂飞散和表面染色的发生。解决方案：提供含有第一粘合剂树脂和第二粘合剂树脂的调色剂，其中第一粘合剂树脂通过至少一种具有通过羟基羧酸的脱水缩合形成的结构单元的聚酯骨架A的嵌段共聚获得重复结构和不具有通过羟基羧酸在重复结构中脱水缩合形成的结构单元的骨架B，并且通过差示扫描量热法以5℃/ min的加热速率测量的玻璃化转变温度Tg1和Tg2，其中 Tg1为-20℃至20℃，Tg2为35℃至65℃，第二粘合剂树脂的玻璃化转变温度Tg3为35℃至65℃。版权所有（C）2013，JPO＆INPIT

7. 发明专利

JP2013092659A Toner, developer using the same, and image forming apparatus 有权
标题翻译：调色剂，使用它的开发者和图像形成装置
公开(公告)号：JP2013092659A
公开(公告)日：2013-05-16
申请号：JP2011234856
申请日：2011-10-26
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAMOTO JUNJI , NAKAYAMA SHINYA , YAMADA MASAHIDE , SANTO HIDEYUKI , AMEMORI SUZUKA
IPC分类号： G03G9/087 , G03G9/08
CPC分类号： G03G9/08757 , G03G9/08755 , G03G9/08764 , G03G9/08797
摘要： PROBLEM TO BE SOLVED: To provide a toner using a crystalline resin capable of suppressing the occurrence of aggregation of toner in a developing machine, and to provide a toner using a crystalline resin as a principal component capable of improving image intensity after fixing.SOLUTION: A toner contains at least a lactone compound having a 14 or more-membered ring and a resin having a crystalline polyester unit. A preferred example of the lactone compound having a 14 or more-membered ring is a lactone compound having an ester bond as a part of the ring.
摘要翻译：要解决的问题：提供使用能够抑制显影机中调色剂聚集发生的结晶树脂的调色剂，并提供使用结晶性树脂作为主要成分的调色剂，其能够改善固色后的图像强度。解决方案：调色剂至少含有具有14个或更多元环的内酯化合物和具有结晶聚酯单元的树脂。具有14个以上元环的内酯化合物的优选实例是作为环的一部分具有酯键的内酯化合物。版权所有（C）2013，JPO＆INPIT

8. 发明专利

JP2012220841A Toner resin, toner using toner resin, developer using toner, image forming method using developer, image forming apparatus, and process cartridge 有权
标题翻译：调色剂，使用调色剂的调色剂，使用调色剂的显影剂，使用显影剂的图像形成方法，图像形成装置和方法盒
公开(公告)号：JP2012220841A
公开(公告)日：2012-11-12
申请号：JP2011088481
申请日：2011-04-12
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAKAJIMA YUKIKO , YAMADA MASAHIDE , NEMOTO TAICHI , MORIYA YOSHIHIRO , YAMAUCHI SHOKEI , MAKABE KEIJI , SABE AKIYOSHI
IPC分类号： G03G9/087 , C08G63/06 , G03G9/08 , G03G9/10
摘要： PROBLEM TO BE SOLVED: To provide a toner resin, even when using polylactic acid, securing heat resistance and storage stability, having excellent low-temperature fixability and having favorable charge stability to a change in an image density and use environment such as temperature and moisture, and to provide a toner using the toner resin, a developer using the toner, an image forming method using the developer, and an image forming apparatus.SOLUTION: The toner resin includes a polyhydroxycarboxylic acid skeleton and is soluble in an organic solvent, the structure thereof is represented by the following general formula (1), and in the general formula (1), at least either of X or Z includes a functional group representing a polarity. (1) X-(Y-Z)n: where X is a skeleton having a planar structure, Y is the polyhydroxycarboxylic acid skeleton, Z is a rigidity skeleton, and n is an integer of 2 or more.
摘要翻译：解决问题：为了提供调色剂树脂，即使使用聚乳酸，确保耐热性和储存稳定性，具有优异的低温定影性并且对图像浓度的变化和使用环境如温度和湿度，并使用调色剂树脂提供调色剂，使用调色剂的显影剂，使用显影剂的图像形成方法和图像形成装置。调色剂树脂包括多羟基羧酸骨架，并且可溶于有机溶剂，其结构由以下通式（1）表示，在通式（1）中，X或 Z包括表示极性的官能团。（1）X-（Y-Z）n：其中X是具有平面结构的骨架，Y是聚羟基羧酸骨架，Z是刚性骨架，n是2以上的整数。版权所有（C）2013，JPO＆INPIT

9. 发明专利

JP2011203445A 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：JP2011203445A
公开(公告)日：2011-10-13
申请号：JP2010070030
申请日：2010-03-25
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMADA MASAHIDE , TANAKA CHIAKI , KAWAMOTO MASAHIRO , KAMIYAMA TATSUNORI , IZUMI KEN
IPC分类号： G03G9/08 , G03G9/087
CPC分类号： G03G9/0804 , G03G9/0819 , G03G9/08755 , G03G9/08782 , G03G9/08795 , G03G9/08797
摘要： PROBLEM TO BE SOLVED: To provide a toner for image formation, containing a release agent having a small and uniform particle size.SOLUTION: The toner includes a particulate release agent, which is prepared by dissolving a wax melted at a temperature equal to or higher by 0°C to 50°C than the melting point, into a supercritical fluid or a sub-critical fluid containing carbon dioxide at a pressure of 0.5 MPa to 50 MPa, and rapidly expanding the solution in a liquid medium to precipitate particles. The toner is formed in a liquid medium and has a weight average particle diameter of 3 to 15 μm and a ratio of (weight average particle diameter)/(number average particle size) of not more than 1.25.
摘要翻译：要解决的问题：提供一种成像用调色剂，其含有具有小而均匀粒径的脱模剂。溶液：该调色剂包括通过将在等于或等于等于或等于等的温度熔化的蜡溶解而制备的颗粒脱模剂通过0℃至50℃的温度，在0.5MPa至50MPa的压力下进入含有二氧化碳的超临界流体或亚临界流体中，并迅速膨胀液体介质中的溶液以沉淀颗粒。调色剂在液体介质中形成，重均粒径为3〜15μm，（重均粒径）/（数均粒径）的比例为1.25以下。

10. 发明专利

JP2011140570A Release agent dispersion and toner using the same 有权
标题翻译：释放代理商分散和使用它的调色剂
公开(公告)号：JP2011140570A
公开(公告)日：2011-07-21
申请号：JP2010002175
申请日：2010-01-07
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： IZUMI KEN , YAMADA MASAHIDE , TANAKA CHIAKI , KAWAMOTO MASAHIRO , KAMIYAMA TATSUNORI
IPC分类号： C09K3/00 , G03G9/08
CPC分类号： Y02P20/544
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a release agent dispersion containing efficiently uniform release agent particles with small particle size; and to provide a toner for image formation capable of obtaining an excellent image over a long term using the obtained release agent dispersion by the method. SOLUTION: The method for manufacturing the release agent dispersion characterized by containing the following steps: a step of dissolving or dispersing at least a release agent in a supercritical fluid or a subcritical fluid to obtain a composition; and a step of ejecting the composition in a liquid medium, rapidly expanding it and depositing it to obtain the release agent dispersion where release agent particles are dispersed. There is also provided a toner using the obtained release agent dispersion by the method for manufacturing the release agent dispersion. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决问题的方法：提供一种含有有效均匀的粒径小的脱模剂颗粒的脱模剂分散体的制造方法。并提供一种用于通过该方法获得的脱模剂分散体能够长期获得优异图像的图像形成用调色剂。解决方案：用于制造脱模剂分散体的方法，其特征在于包括以下步骤：将至少一种脱模剂溶解或分散在超临界流体或亚临界流体中以获得组合物的步骤; 以及将组合物喷射在液体介质中，迅速膨胀并沉积的步骤以获得脱模剂颗粒分散的脱模剂分散体。还提供了通过所述脱模剂分散体的制造方法使用得到的脱模剂分散体的调色剂。版权所有（C）2011，JPO＆INPIT

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式