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1. 发明专利

JP2014178421A toner 审中-公开
标题翻译：碳粉
公开(公告)号：JP2014178421A
公开(公告)日：2014-09-25
申请号：JP2013051448
申请日：2013-03-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： HIROHARA KIWAKO , WATANABE NAOHIRO , SHIBA MASAKATA , KUDO MAKI , KUSAHARA TERUKI , KIKUCHI CHIHIRO
IPC分类号： G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a toner that has excellent low-temperature fixability, excellent hot-offset resistance, excellent heat-resistant storage stability, excellent separability of a recording medium from a fixing member during fixation, and excellent glossiness.SOLUTION: A toner contains at least a binder resin, monoester wax, and colorant. The toner has a melt viscosity (η) at 100°C satisfying the following formula (1); the monoester wax contains at least one monoester compound; and the at least one monoester compound has 30 to 50 carbon atoms. Formula (1): 500 Pa s≤η≤8,000 Pa s.
摘要翻译：要解决的问题：提供一种具有优异的低温定影性，优异的耐热粘合性，优异的耐热储存稳定性，在定影期间记录介质与固定构件的可分离性以及优异的光泽度的调色剂。解决方案：A 调色剂至少含有粘合剂树脂，单酯蜡和着色剂。调色剂在100℃下具有满足下列公式（1）的熔体粘度（＆eegr）。单酯蜡含有至少一种单酯化合物; 并且所述至少一种单酯化合物具有30至50个碳原子。式（1）：500Pa·s≤＆eegr≤8,000Pa·s。

2. 发明专利

JP2013160809A 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：JP2013160809A
公开(公告)日：2013-08-19
申请号：JP2012020216
申请日：2012-02-01
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KUSAHARA TERUKI , OGAWA SATORU , ITO DAISUKE , AWAMURA JUNICHI , HIROHARA KIWAKO , INOUE DAISUKE , WATANABE MASAKI , HONDA TAKAHIRO , KOJIMA TOMOYUKI , NAGATOMO NOBUYASU , UCHINOKURA OSAMU
IPC分类号： G03G9/08 , G03G9/087 , G03G9/10
摘要： PROBLEM TO BE SOLVED: To provide a toner that has excellent heat-resistant storage stability and a wide temperature range available for fixing, and can suppress the occurrence of powder dust in high-speed image formation.SOLUTION: A toner contains at least a binder resin, colorant, and ester wax. The ester wax has the heat absorption starting temperature measured by a differential scanning calorimeter of 30°C or more, the dissolution amount to water at 30°C of 0.05 mass% or less, the dissolution amount to ethyl acetate at 30°C of 1.0 mass% or less, and the dissolution amount to a solvent of 50 volume% acetone and 50 volume% methanol at 30°C of 5.0 mass% or less.
摘要翻译：要解决的问题：提供具有优异的耐热储存稳定性和可用于固定的宽温度范围的调色剂，并且可以抑制高速图像形成中粉尘的发生。解决方案：调色剂至少含有粘合剂树脂，着色剂和酯蜡。酯蜡具有通过差示扫描量热计测定的吸热开始温度为30℃以上，30℃下的水溶解量为0.05质量％以下，在30℃下对乙酸乙酯的溶解量为1.0 质量％以下，30质量％丙酮和50体积％甲醇的溶剂的溶解量为5.0质量％以下。

3. 发明专利

JP2013015673A Toner, developer, image forming apparatus and image forming method 有权
标题翻译：调色剂，开发者，图像形成装置和图像形成方法
公开(公告)号：JP2013015673A
公开(公告)日：2013-01-24
申请号：JP2011148332
申请日：2011-07-04
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： HOZUMI MAMORU , AWAMURA JUNICHI , KUSAHARA TERUKI , ITO DAISUKE , OGAWA SATORU , HONDA TAKAHIRO , HIROHARA KIWAKO , UCHINOKURA OSAMU , KOJIMA TOMOYUKI , SATO SACHIKO , NAGATOMO NOBUYASU , WATANABE MASAKI
IPC分类号： G03G9/08 , G03G9/087
CPC分类号： G03G9/08755 , G03G9/0804 , G03G9/08782 , G03G9/08797
摘要： PROBLEM TO BE SOLVED: To provide toner and the like, which achieves good fixing property at 150°C or lower, has a high effect of suppressing contamination inside a copying machine or the like by volatile wax dust or generation of dust to the outside by exhaust, even when the toner is used in a high-speed copying machine, and can give a favorable fixed image.SOLUTION: Toner comprises a binder resin, a release agent and colorant. The binder resin comprises a crystalline polyester resin and a non-crystalline polyester resin. The release agent shows an endothermic peak temperature of 60°C to 80°C in the second temperature rise in differential scanning calorimetry; and the release agent is ester wax satisfying 1.1 (Pa s)≤ηa≤2.0 (Pa s) and 0.001≤ηb/ηa≤1.00, where ηa represents complex viscosity (Pa s) of the release agent obtained by measurement of dynamic viscoelasticity at measurement frequency of 6.28 rad/s and ηb represents complex viscosity (Pa s) of the release agent measured by measurement of dynamic viscoelasticity at measurement frequency of 62.8 rad/s.
摘要翻译：待解决的问题：为了提供在150℃以下的良好定影性能的调色剂等具有通过挥发性蜡粉尘或产生粉尘而抑制复印机等内部的污染的高效果即使在高速复印机中使用调色剂的情况下，也可以通过排气进行外部的定影，并且能够赋予良好的固定图像。调色剂包括粘合剂树脂，脱模剂和着色剂。粘合剂树脂包括结晶聚酯树脂和非结晶聚酯树脂。脱模剂在差示扫描量热法中的第二升温中显示出60℃至80℃的吸热峰温度; 并且脱模剂为满足1.1（Pa·s）≤n * a≤2.0（Pa s）和0.001≤η * SP> b /η * a≤1.00，其中η * a表示得到的脱模剂的复数粘度（Pa s）通过在6.28rad / s的测量频率下测量动态粘弹性，并且η表示通过在测量频率下测量动态粘弹性测量的脱模剂的复数粘度（Pa s） 62.8 rad / s。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2013007843A Toner for electrostatic charge development 审中-公开
标题翻译：用于静电充电开发的调色剂
公开(公告)号：JP2013007843A
公开(公告)日：2013-01-10
申请号：JP2011139708
申请日：2011-06-23
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YOSHIDA RYUTA , AWAMURA JUNICHI , KUSAHARA TERUKI , OGAWA SATORU , HONDA TAKAHIRO , ITO DAISUKE , KOJIMA TOMOYUKI , INOUE DAISUKE , SATO YUKIFUMI , SATO SACHIKO , UCHINOKURA OSAMU
IPC分类号： G03G9/087 , G03G9/08
摘要： PROBLEM TO BE SOLVED: To provide a toner exhibiting high glossiness without inhibiting low-temperature fixability and a hot offset property.SOLUTION: The toner is obtained by: preparing an organic solvent solution or dispersion of a toner resin material containing a binder resin, a prepolymer comprising a modified polyester resin and an active hydrogen group-containing compound together with a colorant and a release agent; subjecting the solution or dispersion to a crosslinking reaction and/or an elongation reaction in an aqueous medium dispersion liquid; and removing the solvent. The prepolymer is derived from an unmodified polyester that is a precursor of the prepolymer; and the unmodified polyester is a polyester having an alcohol having a carbon ring as a copolymer component. The molecular weight Mpt at the maximum peak of the unmodified polyester satisfies 14000≤Mpt≤21000. An average number F of functional groups that is reactive for elongation or crosslinking, included in one molecule of the prepolymer, satisfies 1.8≤F≤2.2. A gel fraction G as an insoluble content in methyl acetate included in the toner satisfies 13≤G≤21 (wt.%).
摘要翻译：要解决的问题：提供在不抑制低温定影性和热偏移性的情况下显示高光泽度的调色剂。解决方案：调色剂是通过以下步骤获得的：制备含有粘合剂树脂的调色剂树脂材料的有机溶剂溶液或分散体，包含改性聚酯树脂和含活泼氢基团的化合物的预聚物以及着色剂和释放代理人使溶液或分散体在水性介质分散液中进行交联反应和/或伸长反应; 并除去溶剂。预聚物衍生自作为预聚物前体的未改性聚酯; 未改性聚酯是具有作为共聚物成分的碳环的醇的聚酯。未改性聚酯的最大峰的分子量Mpt满足14000≤Mpt≤21000。包含在一分子预聚物中的伸长或交联反应的官能团的平均数F满足1.8≤F≤2.2。包含在调色剂中的乙酸甲酯中不溶物含量的凝胶分数G满足13≤G≤21（重量％）。版权所有（C）2013，JPO＆INPIT

5. 发明专利

JP2012198332A Electrophotographic toner and production method of the same 审中-公开
标题翻译：电摄影调色剂及其生产方法
公开(公告)号：JP2012198332A
公开(公告)日：2012-10-18
申请号：JP2011061425
申请日：2011-03-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： INOUE DAISUKE , UCHINOKURA OSAMU , OGAWA SATORU , AWAMURA JUNICHI , SUGIMOTO TSUTOMU , KOJIMA TOMOYUKI , ITO DAISUKE , KUSAHARA TERUKI , SATO SACHIKO , HOZUMI MAMORU , SATO YUKIFUMI
IPC分类号： G03G9/087 , G03G9/08 , G03G9/09
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic toner and a production method of the toner having high electric resistance, excellent heat-resistant storage property, low-temperature fixability and hot offset resistance, and capable of forming an image with high resolution and high picture quality.SOLUTION: The electrophotographic toner contains at least a binder resin, a colorant and a release agent. The electrophotographic toner is produced by using a master batch containing, as the binder resin, a polyester resin (first resin) having a weight average molecular weight of 1,000 to 20,000 and a polyester resin (second resin) having a weight average molecular weight of 25,000 to 40,000, and the colorant, and dispersing the colorant in the binder resin. The method for producing the toner includes the above step.
摘要翻译：要解决的问题：提供一种电子照相调色剂和具有高电阻，优异的耐热储存性，低温定影性和耐热偏移性的调色剂的制备方法，并且能够形成高分辨率的图像和高画质。电解调色剂至少含有粘合剂树脂，着色剂和脱模剂。电子照相调色剂通过使用含有重均分子量为1,000〜20,000的聚酯树脂（第一树脂）和重均分子量为25,000的聚酯树脂（第二树脂）作为粘合剂树脂的母料来制备至40,000，着色剂，并将着色剂分散在粘合剂树脂中。调色剂的制造方法包括上述工序。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2012189967A Manufacturing method of toner 审中-公开
标题翻译：调色剂的制造方法
公开(公告)号：JP2012189967A
公开(公告)日：2012-10-04
申请号：JP2011055824
申请日：2011-03-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： HOZUMI MAMORU , AWAMURA JUNICHI , OGAWA SATORU , KUSAHARA TERUKI , YOSHIDA RYUTA , INOUE DAISUKE , ITO DAISUKE , UCHINOKURA OSAMU , NAGATOMO NOBUYASU , SATO SACHIKO , HONDA TAKAHIRO
IPC分类号： G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of a toner being excellent in low-temperature fixability, heat-resistant preservability and hot-offset resistance and allowing formation of an image with high glossiness.SOLUTION: A manufacturing method of toner comprises a step of preparing a composition containing a compound having a crystalline polyester, a certain amorphous polyester, a prepolymer and an amino group; a mold release agent and a colorant, by aging a liquid comprising a particle in an aqueous medium using an organic solvent. The number of the isocyanate group of the prepolymer is 1.8 or more and 2.2 or less, as an average value. In the first temperature rising of differential scanning calorimetry of the particle, if the glass transition point and the height of the endothermic peak from the crystalline polyester per unit mass of the particle before aging are defined as Tg[°C] and H[μW/mg] respectively and if the glass transition point and the height of the endothermic peak of the particle after aging are defined as Tg[°C] and H[μW/mg] respectively, the following two formulas: 1.3≤H/H≤1.6 and 0≤Tg-Tg≤1.0 are satisfied.
摘要翻译：要解决的问题：提供低温定影性，耐热保存性和耐热粘合性优异的调色剂的制造方法，并且可以形成具有高光泽度的图像。调色剂的制造方法包括：制备含有结晶性聚酯，某种无定形聚酯，预聚物和氨基的化合物的组合物的工序; 脱模剂和着色剂，通过使用有机溶剂在含水介质中老化包含颗粒的液体。预聚物的异氰酸酯基数为1.8以上且2.2以下，作为平均值。在颗粒的差示扫描量热法的第一次升温中，如果玻璃化转变点和来自结晶聚酯的每单位质量的老化前的颗粒的吸热峰的高度定义为Tg 1 [℃]和H 1 [μW/ mg]，如果玻璃化转变点和老化后颗粒的吸热峰的高度定义为 Tg 2 [℃]和H 2 [μW/ mg]，以下两个公式：1.3≤H 2 / H 1 ≤1.6和0≤Tg 2 -Tg 1 ≤1.0。版权所有（C）2013，JPO＆INPIT

7. 发明专利

JP2012189720A Electrophotographic full-color toner and master batch 审中-公开
标题翻译：电子全彩色墨粉和主色谱柱
公开(公告)号：JP2012189720A
公开(公告)日：2012-10-04
申请号：JP2011052156
申请日：2011-03-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： OGAWA SATORU , UCHINOKURA OSAMU , AWAMURA JUNICHI , HONDA TAKAHIRO , KOJIMA TOMOYUKI , INOUE DAISUKE , ITO DAISUKE , KUSAHARA TERUKI
IPC分类号： G03G9/087 , G03G9/08 , G03G9/09
摘要： PROBLEM TO BE SOLVED: To provide a master batch for a full-color toner to be used for obtaining a toner prepared by water-based granulation using at least a polyester resin as a binder resin, and to provide a production method of a toner using the master batch for a full-color toner, and a toner and a production method of the toner obtained by the above method and showing good dispersibility of a pigment.SOLUTION: The production method of an electrophotographic toner includes the steps of suspending and granulating an oil phase comprising at least a binder resin (B), a colorant and a release agent in an aqueous medium, and externally adding an external additive. A master batch is used for the colorant, the master batch obtained by dispersing a colorant with a binder resin (B1) and an ester wax (1) having a melting point of 80°C to 95°C and an acid value of 20 KOHmg/g to 50 KOHmg/g and further dispersing with an ester wax (2) having a melting point of 60°C to 75°C and an acid value of 3 KOHmg/g or less.
摘要翻译：要解决的问题：为了提供用于获得通过使用至少一种聚酯树脂作为粘合剂树脂的水基造粒制备的调色剂的全色调色剂的母料，并且提供一种制备方法使用用于全色调色剂的母料的调色剂和通过上述方法获得的调色剂和调色剂的制备方法，并显示出良好的颜料分散性。解决方案：电子照相调色剂的制备方法包括将包含至少一种粘合剂树脂（B），着色剂和脱模剂的油相悬浮和造粒在水性介质中并在外部添加外部添加剂的步骤。将母料用于着色剂，母料通过用粘合剂树脂（B1）和酯蜡（1）分散着色剂而获得，熔点为80℃至95℃，酸值为20KOHmg / g至50KOHmg / g，并进一步用熔点为60℃至75℃，酸值为3KOHmg / g以下的酯蜡（2）分散。版权所有（C）2013，JPO＆INPIT

8. 发明专利

JP2012018249A Toner, developer, container containing developer, process cartridge, image forming method and image forming apparatus 有权
标题翻译：调色剂，开发商，集装箱发展商，过程盒，图像形成方法和图像形成装置
公开(公告)号：JP2012018249A
公开(公告)日：2012-01-26
申请号：JP2010154665
申请日：2010-07-07
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： HOZUMI MAMORU , SUGIMOTO TSUYOSHI , AWAMURA JUNICHI , KUSAHARA TERUKI , SATO YUKIFUMI , UCHINOKURA OSAMU , OGAWA SATORU , KOJIMA TOMOYUKI , INOUE DAISUKE , ITO DAISUKE , SATO SACHIKO
IPC分类号： G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a toner which has excellent releasing property and low temperature fixability, and low contaminating property in a machine and which can be easily produced.SOLUTION: The toner comprises base particles produced by emulsifying or dispersing the following liquid in an aqueous medium, the liquid prepared by dissolving or dispersing a toner material containing a binder resin and a release agent in an organic solvent. The binder resin contains a polyester resin. The release agent is prepared by mixing a hydrocarbon wax in a synthetic ester wax in a weight ratio of 1/9 to 9/1. In a DSC measurement and in a period of second time temperature elevation, the glass transition temperature (Tg) of the hydrocarbon wax denoted by Tg, the Tg of the synthetic ester wax denoted by Tgand the Tg of the release agent denoted by Tghave a relationship of Tg>Tgand Tg>Tg.
摘要翻译：要解决的问题：提供具有优异的脱模性和低温定影性的调色剂，并且机器中的污染性低，并且可以容易地制备。调色剂包括通过将下列液体乳化或分散在水性介质中制备的基础颗粒，该液体通过将含有粘合剂树脂和脱模剂的调色剂材料溶解或分散在有机溶剂中而制备。粘合剂树脂含有聚酯树脂。脱模剂通过以合成酯蜡以1/9至9/1的重量比混合烃蜡来制备。在DSC测量中和在第二次温度升高的时段中，由Tg表示的烃蜡的玻璃化转变温度（Tg）表示为合成酯蜡的Tg 通过Tg 2 ，由Tg 1 + 2 表示的脱模剂的Tg具有Tg 1 > Tg 1 + 2 和Tg 2 > Tg 1 + 2 。版权所有（C）2012，JPO＆INPIT

9. 发明专利

JP2010191229A Toner, developer, image forming apparatus, and process cartridge 审中-公开
标题翻译：调色剂，开发商，图像形成装置和过程盒
公开(公告)号：JP2010191229A
公开(公告)日：2010-09-02
申请号：JP2009036073
申请日：2009-02-19
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KUSAHARA TERUKI , AWAMURA JUNICHI , SUZUKI TOMOMI , KARATO TOSHIHIKO
IPC分类号： G03G9/087 , G03G9/08
CPC分类号： G03G9/0806 , G03G9/0819 , G03G9/0821 , G03G9/08755 , G03G9/08793 , G03G9/08795 , G03G9/08797
摘要： PROBLEM TO BE SOLVED: To provide a toner which achieves low temperature fixing property and high temperature preservability. SOLUTION: The toner for electrostatic charge image development is obtained by dispersing a toner material liquid in an aqueous medium, the toner material liquid being prepared by dissolving or dispersing a binder resin, a prepolymer comprising a modified polyester resin, an extender and/or a crosslinking agent for the prepolymer, a colorant, and a releasing agent in at least an organic solvent, so as to induce a crosslinking reaction and/or extension of the prepolymer, and removing the organic solvent from the obtained dispersion liquid. A ratio M(g)/M(p) has the relationship of 1.35≤M(g)/M(p)≤1.90, wherein M(g) represents the amount of a gel component produced by the crosslinking reaction and/or extension, and M(p) represents the amount of the prepolymer in the toner liquid material when the total amount of the prepolymer and the binder resin is 100g. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供实现低温定影性和高温保存性的调色剂。用于静电荷图像显影的调色剂通过将调色剂材料液体分散在水性介质中而获得，调色剂材料液体通过将粘合剂树脂溶解或分散，包含改性聚酯树脂的预聚物，增量剂和 /或至少在有机溶剂中的预聚物，着色剂和脱模剂的交联剂，以引起预聚物的交联反应和/或延伸，并从所得分散液中除去有机溶剂。比例M（g）/ M（p）的关系为1.35≤M（g）/ M（p）≤1.90，其中M（g）表示通过交联反应和/或延伸产生的凝胶组分的量，M（p）表示预聚物和粘合剂树脂的总量为100g时调色剂液体材料中的预聚物的量。版权所有（C）2010，JPO＆INPIT

10. 发明专利

JP2017081153A 立体造形材料セット、立体造形物の製造方法、及び歯科用補綴物の製造方法、立体造形物の製造装置审中-公开
公开(公告)号：JP2017081153A
公开(公告)日：2017-05-18
申请号：JP2016182144
申请日：2016-09-16
申请人：株式会社リコー , Ricoh Co Ltd
发明人： WATANABE MASAKI , NIIMI TATSUYA , KUSAHARA TERUKI , SAKURAI YOICHI , TANAKA KOICHIRO
IPC分类号： B29C67/00 , A61C8/00 , A61C13/09 , A61K6/083 , B33Y70/00 , B41M5/00
摘要：【課題】複雑な立体形状の立体造形物を簡便かつ効率良く製造でき、造形後すぐに高強度が得られる立体造形材料セットの提供。【解決手段】有機粒子及び無機粒子の少なくともいずれか、並びに重合開始剤Aを含む立体造形用材料Aと、重合性化合物Bを含む立体造形用材料Bと、を有する立体造形材料セットである。前記立体造形用材料Aが、液体状態又は粉末状態である態様、前記有機粒子が、ポリメチルメタクリレート、ポリカーボネート、ポリエステル、ポリアミド、及びポリエーテルエーテルケトンから選択される少なくとも1種である態様などが好ましい。【選択図】図1

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