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

JP2013156522A Toner, developer and image forming apparatus 有权
标题翻译：调色剂，开发商和图像形成装置
公开(公告)号：JP2013156522A
公开(公告)日：2013-08-15
申请号：JP2012018256
申请日：2012-01-31
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YOSHIDA RYUTA , HONDA TAKAHIRO , AWAMURA JUNICHI , UCHINOKURA OSAMU , WATANABE MASAKI , INOUE DAISUKE , MURAYAMA TOMOKI , HOZUMI MAMORU
IPC分类号： G03G9/087 , G03G9/08 , G03G15/08
CPC分类号： G03G9/08755 , G03G9/0802 , G03G9/08782 , G03G9/08797
摘要： PROBLEM TO BE SOLVED: To provide a toner having high heat-resistant storage property without degrading low-temperature fixability, suppressing occurrence of sticking in a discharged sheet even in a high-speed fixing system, and having high energy-saving property.SOLUTION: The toner comprises a binder resin including a non-crystalline resin and a crystalline resin, a colorant and a release agent. The release agent has a melting point of from 55°C to 80°C. A storage modulus G1 and a loss modulus G2 of the toner at 80°C during temperature elevation from 70°C to 150°C, and a storage modulus G3 and a loss modulus G4 at 80°C during temperature falling to 70°C after once the temperature of the toner is elevated to 150°C, satisfy the relation of (formula 1):20,000 Pa s≤G1≤50,000 Pa s and (formula 2):(G4/G2)/(G3/G1)≤1.00.
摘要翻译：要解决的问题：提供一种具有高耐热储存性能的调色剂，而不会降低低温定影性，即使在高速定影系统中也抑制了排出纸张粘附的发生，并且具有高节能性。解决方案：调色剂包括包含非结晶树脂和结晶树脂的粘合剂树脂，着色剂和脱模剂。脱模剂的熔点为55℃〜80℃。在70℃至150℃的温度升高期间80℃下的调色剂的储能模量G1和损耗模量G2，以及在温度下降到70℃之后的80℃时的储能模量G3和80℃的损耗模量G4 一旦调色剂的温度升高到150℃，满足（式1）：20,000Pa·s≤G1≤50,000Pa·s和（式2）:( G4 / G2）/（G3 / G1）≤1.00的关系。

2. 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

3. 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

4. 发明专利

JP2012185277A Electrophotographic toner 审中-公开
标题翻译：电子照相机
公开(公告)号：JP2012185277A
公开(公告)日：2012-09-27
申请号：JP2011047518
申请日：2011-03-04
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ITO DAISUKE , UCHINOKURA OSAMU , OGAWA SATORU , AWAMURA JUNICHI , KUSAHARA TERUKI , SATO YUKIFUMI , INOUE DAISUKE , YOSHIDA RYUTA , HONDA TAKAHIRO , KOJIMA TOMOYUKI , SATO SACHIKO
IPC分类号： G03G9/09 , G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic toner having excellent color reproducibility, in which the toner is obtained by granulation in an aqueous medium using at least a polyester resin as a resin component.SOLUTION: A toner is prepared by granulating an oil phase, which comprises at least a matrix resin, a coloring agent, and a resin for a master batch for dispersing the coloring agent, and a releasing agent, in an aqueous medium. In the toner that satisfies an expression: 0≤|SPa-SPb|≤1.0 when a solubility parameter (SP value) of the resin for a master batch is to be Spa and an SP value of the matrix resin is to be SPb, the coloring agent is surface-treated by a surface treating agent, and when an SP value of the surface treating agent is to be SPc, an expression: 0≤|SPa-SPc|≤1.0 is satisfied, and when an SP value of the releasing agent is to be SPd, an expression: 1.0
摘要翻译：要解决的问题：提供一种具有优异色彩再现性的电子照相调色剂，其中通过使用至少一种聚酯树脂作为树脂成分在水介质中制粒调色剂。解决方案：通过将含有至少基质树脂，着色剂和用于将着色剂分散的母料的树脂和脱模剂的油相制粒在水性介质中来制备调色剂。在母料树脂的溶解度参数（SP值）为Spa，基质树脂的SP值为SPb时满足表达式0≤S2SPa-SPb3≤1.0的调色剂中，着色剂通过表面处理剂进行表面处理，当表面处理剂的SP值为SPc时，满足表达式：0≤¾SPa-SPc¾≤1.0，当脱模剂的SP值为 SPd，表达式：1.0

5. 发明专利

JP2014174444A Image forming apparatus, toner set, image forming method, and process cartridge 审中-公开
标题翻译：图像形成装置，墨粉盒，图像形成方法和处理盒
公开(公告)号：JP2014174444A
公开(公告)日：2014-09-22
申请号：JP2013049047
申请日：2013-03-12
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： UCHINOKURA OSAMU , CHU BING , WATANABE MASAKI , SAITO TAKASHI , YOSHIDA RYUTA
IPC分类号： G03G9/08 , G03G9/087 , G03G9/09 , G03G15/01
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus configured to prevent reduction in color characteristics uniformity and toner gloss non-uniformity to be caused during fixation.SOLUTION: An image forming apparatus includes: color image forming means for forming a color image with chromatic toner; transparent image forming means for forming a transparent image on the color image by use of transparent toner; and fixing means. The transparent toner and the chromatic toner each contain a mold release agent and a binder resin. The binder resin contains a non-crystalline resin. When a height of a maximum rising peak point in an infrared absorption spectrum of the mold release agent, which is obtained by an infrared spectroscopy (KBr full-transmission method) by means of a fourier transform infrared spectral analyzer, is W, a height of the maximum rising peak point in an infrared absorption spectrum of the non-crystalline resin is R, a ratio W/R for the chromatic toner is Cfc and that for the transparent toner is Ccl, the following expressions are satisfied:(1) 0.05≤Ccl-Cfc≤0.65 and (2) 0.10≤Ccl≤0.80.
摘要翻译：要解决的问题：提供一种图像形成装置，其被配置为防止在固定期间引起的颜色特性均匀性和调色剂光泽不均匀性的降低。图像形成装置包括：彩色图像形成装置，用于形成具有彩色图像的彩色图像调色剂; 透明图像形成装置，用于通过使用透明调色剂在彩色图像上形成透明图像; 和固定装置。透明调色剂和彩色调色剂各自含有脱模剂和粘合剂树脂。粘合剂树脂含有非结晶性树脂。当通过红外光谱法（KBr全传输法）通过傅立叶变换红外光谱分析仪获得的脱模剂的红外吸收光谱中的最大上升峰值的高度为W时，其高度为非结晶性树脂的红外吸收光谱中的最大上升峰值为R，彩色调色剂的比例W / R为Cfc，透明调色剂的比例为Ccl，满足以下表达式：（1）0.05≤ Ccl-Cfc≤0.65和（2）0.10≤Ccl≤0.80。

6. 发明专利

JP2014157223A Transparent toner, developer for image formation, and process cartridge 审中-公开
标题翻译：透明墨粉，图像形成开发商和工艺盒
公开(公告)号：JP2014157223A
公开(公告)日：2014-08-28
申请号：JP2013027660
申请日：2013-02-15
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAITO TAKASHI , CHU BING , WATANABE MASAKI , YOSHIDA RYUTA , UCHINOKURA OSAMU
IPC分类号： G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a transparent toner having excellent releasability, low-temperature fixability, and heat-resistant storage stability.SOLUTION: A transparent toner is formed of a base resin and a mold release agent; and at least one type of the base resin is a polyester resin, and the mold release agent contains an ester bond. The transparent toner has a coloring degree of less than 0.5, and a mold release agent-containing surface solvent extraction component in an amount of 12 mg/g or more and less than 19 mg/g.
摘要翻译：要解决的问题：提供具有优异的脱模性，低温定影性和耐热储存稳定性的透明调色剂。解决方案：透明调色剂由基础树脂和脱模剂形成; 并且至少一种类型的基础树脂是聚酯树脂，并且脱模剂含有酯键。透明调色剂的着色度小于0.5，含脱模剂的表面溶剂萃取组分的量为12mg / g以上且小于19mg / g。

7. 发明专利

JP2014153661A Toner set 有权
标题翻译： TONER SET
公开(公告)号：JP2014153661A
公开(公告)日：2014-08-25
申请号：JP2013025499
申请日：2013-02-13
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： WATANABE NAOHIRO , OGAWA SATORU , WATANABE MASAKI , YOSHIDA RYUTA
IPC分类号： G03G9/08 , G03G9/087 , G03G9/09
摘要： PROBLEM TO BE SOLVED: To provide a toner set having excellent low-temperature fixability and heat-resistant storage stability, and capable of forming solid images with good granularity.SOLUTION: A toner set according to an embodiment of the present invention includes a clear toner and a colored toner. The clear toner includes a binder resin and a mold release agent, and the colored toner includes a binder resin, a pigment, and a mold release agent. When a volume average particle diameter of the clear toner is A[μm], and a volume average particle diameter of the colored toner is B[μm], the formula 4.8≤A≤8.41.0
摘要翻译：要解决的问题：提供具有优异的低温定影性和耐热储存稳定性并且能够形成具有良好粒度的固体图像的调色剂组。解决方案：根据本发明实施方案的调色剂组包括透明调色剂和彩色调色剂。透明调色剂包括粘合剂树脂和脱模剂，着色调色剂包括粘合剂树脂，颜料和脱模剂。当透明调色剂的体积平均粒径为A [μm]，着色调色剂的体积平均粒径为B [μm]时，满足公式4.8≤A≤8.41.0

8. 发明专利

JP2013109135A Toner and developer 审中-公开
标题翻译：调色板和开发者
公开(公告)号：JP2013109135A
公开(公告)日：2013-06-06
申请号：JP2011253742
申请日：2011-11-21
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： WATANABE MASAKI , OGAWA SATORU , KUSAHARA TERUKI , YOSHIDA RYUTA
IPC分类号： G03G9/087 , G03G9/08
CPC分类号： G03G9/08755 , G03G9/0806 , G03G9/0815 , G03G9/0817 , G03G9/08795 , G03G9/08797
摘要： PROBLEM TO BE SOLVED: To provide a toner and a developer capable of realizing excellent low-temperature fixability and heat-resistant storage stability.SOLUTION: A toner contains an amorphous polyester resin and a crystalline polyester resin. The weight average molecular weight of a tetrahydrofuran soluble component of the amorphous polyester resin measured by a gel permeation chromatography measurement is 3,000 to 8,000; and a difference (B-A) between the glass-transition temperature A of the toner before being subjected to methanol extraction processing and the glass-transition temperature B of the toner after being subjected to the methanol extraction processing is 2.0°C or lower.
摘要翻译：要解决的问题：提供能够实现优异的低温定影性和耐热储存稳定性的调色剂和显影剂。调色剂含有无定形聚酯树脂和结晶聚酯树脂。通过凝胶渗透色谱法测定的无定形聚酯树脂的四氢呋喃可溶成分的重均分子量为3,000〜8,000; 甲醇萃取处理前的调色剂的玻璃化转变温度A与进行甲醇萃取处理后的调色剂的玻璃化转变温度B之间的差（B-A）为2.0℃以下。版权所有（C）2013，JPO＆INPIT

9. 发明专利

JP2011203717A Electrostatic charge developing toner 有权
标题翻译：静电充电发电机
公开(公告)号：JP2011203717A
公开(公告)日：2011-10-13
申请号：JP2011014780
申请日：2011-01-27
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KUSAHARA TERUKI , AWAMURA JUNICHI , SUGIMOTO TSUTOMU , SHU HYO , SUZUKI TOMOMI , UCHINOKURA OSAMU , HONDA TAKAHIRO , KOJIMA TOMOYUKI , OGAWA SATORU , INOUE DAISUKE , SATO YUKIFUMI , ITO DAISUKE , YOSHIDA RYUTA , SATO SACHIKO
IPC分类号： G03G9/087 , G03G9/08 , G03G9/10 , G03G15/08
CPC分类号： G03G9/0821 , G03G9/08755 , G03G9/08782 , G03G9/08795 , G03G9/08797
摘要： PROBLEM TO BE SOLVED: To provide an electrostatic charge image developing toner which is excellent in the image quality, cleanability and coloring property of an image and in low temperature fixability and toner preservability, in a recycling system using a color toner.SOLUTION: The electrostatic charge developing toner is obtained by granulation from a dispersion in which an oil phase containing a toner composition in an organic solvent is dispersed in an aqueous medium. A binder resin in the toner composition contains a low molecular resin component, wherein a resin softening coefficient (A) of the low molecular resin component represented by expression: A=|(lnG'(r1)-lnG'(r2))/(T1-T2)| is >0.165, and when a flow start temperature (°C) of the low molecular resin component measured with an elevated flow tester is designated as Tfb, a storage modulus (dyne/cm) G'(Tfb) is ≤1×10. In the expression, T1 is a temperature (°C) at which a storage modulus G'(r1) becomes 1×10(dyne/cm), and T2 is a temperature (°C) at which a storage modulus G'(r2) becomes 1×10, as measured with a rheometer at a frequency of 1 Hz and a strain of 1 deg.
摘要翻译：要解决的问题：提供一种在使用彩色调色剂的回收系统中提供图像质量，图像的清洁性和着色性以及低温定影性和调色剂保存性的静电电荷图像显影调色剂。溶液：静电通过将含有有机溶剂中的调色剂组合物的油相分散在水性介质中的分散体造粒得到电荷显影调色剂。调色剂组合物中的粘合剂树脂含有低分子量树脂组分，其中由式A = |（lnG'（r1）-lnG'（r2））/（ T1-T2）| > 0.165，并且当用升高的流动测试仪测量的低分子量树脂组分的流动开始温度（℃）被指定为Tfb时，储能模量（dyne / cm）G'（Tfb）≤1×10。在该表达式中，T1是储能模量G'（r1）变为1×10（dyne / cm）的温度（℃），T2是储存模量G'（r2）的温度（℃））变为1×10，如用流变仪在1Hz的频率和1度的应变下测量的。

10. 发明专利

JP2014139618A Toner set, developer, and image forming apparatus 有权
标题翻译：调色板，开发者和图像形成装置
公开(公告)号：JP2014139618A
公开(公告)日：2014-07-31
申请号：JP2013008374
申请日：2013-01-21
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YOSHIDA RYUTA , UCHINOKURA OSAMU , CHU BING , WATANABE MASAKI , SAITO TAKASHI
IPC分类号： G03G9/08 , G03G9/087 , G03G9/09
摘要： PROBLEM TO BE SOLVED: To provide a toner set comprising a transparent toner and chromatic color toners that has sufficient image quality, storage stability, and fixing characteristics, and can form a color image having different glossinesses in a desired area in one formed image.SOLUTION: A toner set comprises one or more chromatic color toners and a transparent toner including no coloring agent. The chromatic color toners and the transparent toner each contain at least a mold release agent, a binder resin, and, as an external additive, aspherical amorphous silica particles in which at least a plurality of primary particles are bonded to form a secondary particle; and the silica particle content of the transparent toner is smaller than that of the chromatic color toners.
摘要翻译：要解决的问题：提供一种包含透明调色剂和彩色调色剂的调色剂组合物，其具有足够的图像质量，储存稳定性和固色特性，并且可以在一个形成的图像中在期望的区域中形成具有不同光泽度的彩色图像。调色剂组包括一种或多种彩色调色剂和不含着色剂的透明调色剂。彩色调色剂和透明调色剂各自至少含有脱模剂，粘合剂树脂和至少多个一次粒子结合形成二次粒子的非球面无定形二氧化硅粒子作为外部添加剂，并且透明调色剂的二氧化硅颗粒含量小于彩色调色剂的二氧化硅颗粒含量。

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