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

JP2008083734A Method for manufacturing toner for electrostatic charge image development, toner, image forming apparatus and container 有权
标题翻译：用于制造静电荷图像发展的调色剂的方法，调色剂，图像形成装置和容器
公开(公告)号：JP2008083734A
公开(公告)日：2008-04-10
申请号：JP2007324371
申请日：2007-12-17
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAITO HIROSHI , MIYAGAWA MASASHI , KADOTA TAKAHIRO , KURODA NOBORU
IPC分类号： G03G9/087 , G03G9/08
摘要： PROBLEM TO BE SOLVED: To provide a toner which emits no foul odor because of efficiently reduced amounts of a decomposition product of a reaction initiator, residual solvent, etc., excels in thin line reproducibility, has cleaning performance, has uniform particle diameter and has a narrow particle size distribution, a method for manufacturing the same, and an image forming apparatus using the obtained toner. SOLUTION: The method for manufacturing the toner for electrostatic charge image development comprises: at least a step of dissolving and/or dispersing a toner composition consisting essentially of a resin and a colorant in an organic solvent; a step of emulsifying and dispersing the resultant solution or dispersion in an aqueous medium in which a fine particle dispersant is present; and a step of removing the organic solvent from the resultant emulsified dispersion in a hermetically sealed solvent removal tank, wherein at the organic solvent removal step, the emulsified dispersion in the tank is bubbled by supplying an inert gas from the bottom of the tank in an amount of 1-30 vol.% per min based on the amount of the emulsified dispersion to increase the gas phase contact surface area of the emulsified dispersion, whereby the gas phase contact surface area of the emulsified dispersion is made larger than a horizontal cross-sectional area of the tank. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供由于反应引发剂，残留溶剂等的分解产物的有效减少而不产生恶臭的调色剂，具有细线再现性，具有清洁性能，具有均匀的颗粒并且具有窄的粒度分布，其制造方法和使用所得调色剂的图像形成装置。解决方案：用于制造静电荷图像显影用调色剂的方法包括：至少将基本上由树脂和着色剂组成的调色剂组合物溶解和/或分散在有机溶剂中的步骤; 将所得溶液或分散体乳化和分散在其中存在细颗粒分散剂的水性介质中的步骤; 以及在密闭的溶剂除去槽中从所得乳化分散体中除去有机溶剂的步骤，其中在有机溶剂去除步骤中，通过从罐的底部供给惰性气体来鼓泡罐中的乳化分散体基于乳化分散体的量，以每分钟1〜30体积％的量加入乳化分散体的气相接触表面积，由此使乳化分散体的气相接触表面积大于水平横截面积，坦克的截面积。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2007160298A Cyclone classifier, flash drying system and toner 有权
标题翻译： CYCLONE分类器，闪光干燥系统和调色剂
公开(公告)号：JP2007160298A
公开(公告)日：2007-06-28
申请号：JP2006226266
申请日：2006-08-23
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KADOTA TAKAHIRO , UEHARA KENICHI , KURODA NOBORU
IPC分类号： B04C5/103 , B04C5/081 , B04C5/12 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a cyclone classifier that can separate powder particles of a narrow distribution range in a high yield, a flash drying system and toner.
SOLUTION: The cyclone classifier composed of an outer cylinder comprising a cylindrical outer shell and an inverted-cone-shaped outer bottom vertically connected to the underside of the cylindrical outer shell and an inner cylinder comprising an exhaust outlet is characterized in that a reduced cross-sectional area is formed by a cylinder of a reduced inner diameter or an orifice-shaped baffle plate at an optional height inside the outer cylinder and that the bottom end of the inner cylinder is located in a cylindrical space (cylindrical part) right under the reduced cross-sectional area.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供可以以高产率分离窄分布范围的粉末颗粒的旋风分选机，闪蒸干燥系统和调色剂。解决方案：旋风分选机由包括圆柱形外壳和垂直连接到圆柱形外壳的下侧的倒锥形外底的外筒和包括排气出口的内筒构成，其特征在于，减小的横截面面积由外筒内部可选高度的内径缩小的圆柱体或孔形挡板形成，并且内筒的底端位于圆柱形空间（圆柱形部分）的右侧在横截面积减小的情况下。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2006139161A Method for manufacturing toner for electrostatic charge image development, developer, image forming apparatus, image forming method and process cartridge 有权
标题翻译：用于制造静电电荷图像开发的调色剂的方法，开发者，图像形成装置，图像形成方法和过程盒
公开(公告)号：JP2006139161A
公开(公告)日：2006-06-01
申请号：JP2004329963
申请日：2004-11-15
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MATSUOKA SONOO , SAITO TAKUYA , TAKAHASHI HIROSHI , NISHIZAKI TOSHINAGA , KURODA NOBORU , KOZU OSAMU
IPC分类号： G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a method by which a toner having an always stable volume average particle diameter and a sharp particle size distribution is easily manufactured without waste.
SOLUTION: In the method for manufacturing a toner including a step of preparing an emulsified liquid by mixing an organic solvent composition containing at least a binder resin and a colorant in an organic solvent or a polymerizable monomer composition containing at least a polymerizable monomer and a colorant in an aqueous medium and applying shear force to the resulting mixed liquid, the step of preparing the emulsified liquid is carried out under conditions which increase an average particle diameter of the organic solvent composition or the polymerizable monomer composition in the mixed liquid when shear force applied to the mixed liquid is increased.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种容易制造具有总体均匀的体积平均粒径和尖锐的粒度分布的调色剂的方法，而不浪费。解决方案：在制造调色剂的方法中，包括通过将至少含有粘合剂树脂和着色剂的有机溶剂组合物在有机溶剂中混合制备乳化液体的步骤或至少含有可聚合单体的可聚合单体组合物和水性介质中的着色剂并对所得混合液施加剪切力，制备乳化液的步骤在增加混合液体中有机溶剂组合物或可聚合单体组合物的平均粒径的条件下进行，施加到混合液体的剪切力增加。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2008112181A Toner, method of producing the same and image forming method 审中-公开
标题翻译：调色剂，其制备方法和图像形成方法
公开(公告)号：JP2008112181A
公开(公告)日：2008-05-15
申请号：JP2007311938
申请日：2007-12-03
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KURODA NOBORU
IPC分类号： G03G9/08 , G03G9/087 , G03G9/10
摘要： PROBLEM TO BE SOLVED: To provide a toner excellent in fluidity and durability, to provide an image forming method using the toner, and to provide a method of producing the toner.
SOLUTION: The toner contains at least a binder resin, a colorant and a releasing agent, wherein a polyester resin or a polyol resin is used as the binder resin and the toner has a weight-average particle diameter of 5-7.72 μm and contains ≤35% by number of toner particles of ≤4 μm. The releasing agent has an endotherm ratio (Q/q) of 0.98-0.77, that is measured using DSC, wherein q is the endotherm of the releasing agent contained in toner particles having a weight-average particle diameter of 4 μm obtained by coarse powder classification of the toner, and Q is the endotherm of the releasing agent contained in the toner in its entirety. The amount of the releasing agent based on the toner in its entirety is 3-8 wt.% and the toner contains hydrophobic silica.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供流动性和耐久性优异的调色剂，以提供使用调色剂的图像形成方法，并提供调色剂的制造方法。解决方案：调色剂至少含有粘合剂树脂，着色剂和脱模剂，其中使用聚酯树脂或多元醇树脂作为粘合剂树脂，调色剂的重均粒径为5-7.72μm 并且含有≤35％的调色剂颗粒≤4μm。脱模剂具有0.98-0.77的吸热比（Q / q），其使用DSC测量，其中q是通过粗粉获得的重均粒径为4μm的调色剂颗粒中所含的脱模剂的吸热调色剂的分类，Q是整个调色剂中包含的脱模剂的吸热。基于整个调色剂的脱模剂的量为3-8重量％，并且调色剂含有疏水性二氧化硅。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2007140074A Method for manufacturing toner for developing electrostatic charge image, and toner for developing electrostatic charge image 有权
标题翻译：用于制造用于开发静电电荷图像的调色剂的方法和用于开发静电电荷图像的调色剂
公开(公告)号：JP2007140074A
公开(公告)日：2007-06-07
申请号：JP2005333293
申请日：2005-11-17
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KOBAYASHI MASATO , KURODA NOBORU , KOEDA JUNYA , KADOTA TAKAHIRO
IPC分类号： G03G9/087 , G03G9/08
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing an electrophotographic toner having a small particle size and a little fine powder content, and to provide a toner that consequently can accurately develop a latent image and reproduce a full-color image of high picture quality. SOLUTION: The method for manufacturing toner is carried out by dispersing at least a binder resin and a colorant in a liquid medium to produce toner particles in a first dispersion liquid, separating the toner particles from the liquid by filtering to obtain a first cake, again dispersing the first cake in an water-based medium to obtain a second dispersion liquid, separating the particles from the second dispersion liquid by filtering to obtain a second cake, and the drying the cake, wherein the number% D n1 of toner particles in a size of 4 μm or smaller in the first dispersion liquid, and the number% D n2 of toner particles in a size of 4 μm or smaller of second cake before drying satisfy the relation of D n2 /D n1 COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种制造具有小粒径和微细粉末含量的电子照相调色剂的方法，并提供调色剂，从而可以精确地显影潜像并再现全色图像高画质。解决方案：调色剂的制造方法是将至少粘合剂树脂和着色剂分散在液体介质中，以在第一分散液中产生调色剂颗粒，通过过滤从调色剂颗粒与液体分离，从而获得第一将第一饼再次分散在水性介质中以得到第二分散液，通过过滤分离第二分散液中的颗粒，得到第二滤饼，干燥滤饼，其中％D 在第一分散液中具有4μm或更小尺寸的调色剂颗粒的n1 和第二饼的尺寸为4μm或更小的调色剂颗粒的数目％D n2 干燥满足D n2 / D n1 <1.0的关系。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2007079344A Manufacturing method for toner for electrostatically charged image development 有权
标题翻译：用于静电充电图像开发的调色剂的制造方法
公开(公告)号：JP2007079344A
公开(公告)日：2007-03-29
申请号：JP2005269560
申请日：2005-09-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAITO TAKUYA , MATSUOKA SONOO , KURODA NOBORU , TAKAHASHI HIROSHI
IPC分类号： G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method for toner in which toner having an invariably stable volume mean particle size and a sharp particle size distribution is easily manufactured without waste, the toner being suitable to a fixing device capable of saving energy, having excellent developing property for a long period, and forming an image of high image quality. SOLUTION: Disclosed is the manufacturing method for the toner including an emulsifying and dispersing stage of obtaining emulsified liquid by mixing an organic solvent composition containing a binder resin and a coloring agent at least in an organic solvent with a water type medium and applying shearing force to the mixed liquid, the manufacturing method for toner for electrostatically charged image developer being characterized in that the volume mean particle size of toner particles present in the emulsified liquid obtained when the weight ratio of the organic solvent composition and water type medium in the mixed liquid is varied within a range of 60:40 to 20:80 is measured and the emulsifying and dispersing stage is carried out within a range of the weight ratio [%] of the organic solvent composition such that the relation between the weight ratio [%] of the organic solvent composition to all the mixed liquid and the volume mean particle size under fixed shearing force conditions is -6.0 to +6.0 (μm/%). COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供调色剂的制造方法，其中容易制造具有稳定体积平均粒度和尖锐粒度分布的调色剂而不浪费，调色剂适合于能够节约能量的定影装置，具有优异的显影性能，并且形成高图像质量的图像。解决方案：公开了一种调色剂的制造方法，其包括通过将至少在有机溶剂中含有粘合剂树脂和着色剂的有机溶剂组合物与水型介质混合而获得乳化液的乳化分散阶段，并施加对混合液体的剪切力，静电荷图像显影剂用调色剂的制造方法，其特征在于，当所述有机溶剂组合物和水型介质的重量比在所述乳化液中时所得到的调色剂颗粒的体积平均粒径测定混合液在60:40〜20:80的范围内变化，乳化分散阶段在有机溶剂组合物的重量比[％]的范围内进行，使得重量比[ ％]的有机溶剂组合物与所有混合液体的体积平均粒径和固定剪切力条件下的体积平均粒径 s为-6.0〜+ 6.0（μm/％）。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2006259120A Method for manufacturing toner, system for manufacturing toner, toner, developer, image forming method, and image forming apparatus 有权
标题翻译：制造调色剂的方法，制造调色剂，调色剂，开发者，图像形成方法和图像形成装置的系统
公开(公告)号：JP2006259120A
公开(公告)日：2006-09-28
申请号：JP2005075231
申请日：2005-03-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKAHASHI HIROSHI , KURODA NOBORU , NISHIZAKI TOSHINAGA , KOZU OSAMU
IPC分类号： G03G9/087 , B01F3/08 , G03G9/08
摘要： PROBLEM TO BE SOLVED: To easily manufacture a toner of a uniform composition having a stable volume average grain size and a sharp grain size distribution and eventually to provide a toner capable of reproducing a full-color image of high image quality by faithfully developing a latent image and a manufacturing method. SOLUTION: The method for manufacturing the toner has processes of; continuously supplying a dissolved dispersion prepared by dissolving or dispersing at least two or more kinds of resins of different molecular weights, a colorant and a release agent into an organic solvent and an aqueous medium having resin particulates insoluble in water; and emulsifying the colored particle water dispersion composed of the dissolved dispersion and the aqueous medium by using a shearing means, in which the previously emulsified colored particle water dispersion and the dissolved dispersion are brought into contact with each other at a distance within 0.2 m from the shearing means. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了容易地制造具有稳定的体积平均粒度和尖锐的粒度分布的均匀组合物的调色剂，并且最终提供能够忠实地再现高图像质量的全色图像的调色剂开发潜像和制造方法。调色剂的制造方法具有以下工序：将不同分子量的至少两种或更多种不同分子量的树脂，着色剂和脱模剂溶解或分散在有机溶剂中的溶解分散体和具有不溶于水的树脂微粒的水性介质连续供给; 并通过使用剪切装置乳化由溶解的分散体和水性介质组成的着色颗粒水分散体，其中先前乳化的着色颗粒水分散体和溶解的分散体彼此接触，距离剪切手段。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2006091066A Method for manufacturing toner and image forming method 有权
标题翻译：制造调色剂和图像形成方法的方法
公开(公告)号：JP2006091066A
公开(公告)日：2006-04-06
申请号：JP2004272944
申请日：2004-09-21
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAZAKI KAZUYUKI , KURODA NOBORU
IPC分类号： G03G9/087 , G03G9/09
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a toner for electrostatic image development by which a pigment dispersing effect is increased to increase a coloring degree and which is economical, efficient and environmentally friendly. SOLUTION: In the method for manufacturing the toner in which constituents of the toner are dissolved or dispersed in an organic solvent and emulsion-dispersed in an aqueous medium, and before or after aggregation to toner size, the organic solvent is removed and particles are taken out of the aqueous medium, ultrafine particles generated in a wet classification step after the aggregation operation, and ultrafine powder generated in a dry classification step are melt-kneaded with a binder resin and a pigment and reused as a masterbatch. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于制造静电图像显影用调色剂的方法，通过该方法，颜料分散效果增加以增加着色度，并且是经济，有效和环境友好的。解决方案：在调色剂的制造方法中，调色剂的成分溶解或分散在有机溶剂中并乳液分散在水性介质中，并且在聚集到调色剂尺寸之前和之后，除去有机溶剂，将颗粒从水介质中取出，在聚集操作之后在湿分级步骤中产生的超细颗粒和在干分级步骤中产生的超细粉末用粘合剂树脂和颜料熔融捏合并重新用作母料。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2005077776A Method for producing electrostatic charge image developing toner, and the toner 审中-公开
标题翻译：用于生产静电电荷图像显影剂的方法和调色剂
公开(公告)号：JP2005077776A
公开(公告)日：2005-03-24
申请号：JP2003308299
申请日：2003-09-01
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAITO HIROSHI , MIYAGAWA MASASHI , KADOTA TAKAHIRO , KURODA NOBORU
IPC分类号： G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide toner having a uniform particle diameter and narrow distribution of the particle size, the toner which efficiently suppresses the quantity of a decomposed product of a reaction initiator or a residual solvent, which has no odor, and which has superior reproducibility of thin lines and cleaning performance, and to provide a method for producing the toner and an image forming apparatus which uses the obtained toner.
SOLUTION: The method for producing an electrostatic charge image developing toner includes at least processes of dissolving or dispersing a toner composition, comprising at least resin and a colorant in an organic solvent; emulsifying and dispersing the dissolved product or dispersed product in an aqueous medium, in the presence of a particulate dispersant; and removing the organic solvents from the emulsified dispersion liquid in a sealed tank. In the process of removing the organic solvent, the surface area of the emulsified dispersion liquid, in contact with the gas phase, is larger than the horizontal cross-sectional area of the tank.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供具有均匀粒径和粒度分布窄的调色剂，有效抑制无气味的反应引发剂或残留溶剂的分解产物量的调色剂和其具有优异的细线再现性和清洁性能，并且提供一种制造调色剂的方法和使用所获得的调色剂的成像设备。解决方案：静电荷成像显影调色剂的制造方法至少包括将至少包含树脂和着色剂的调色剂组合物溶解或分散在有机溶剂中的方法; 在颗粒分散剂存在下将溶解产物或分散产物乳化和分散在水性介质中; 并从密封罐中的乳化分散液中除去有机溶剂。在去除有机溶剂的过程中，与气相接触的乳化分散液的表面积大于罐的水平横截面面积。版权所有（C）2005，JPO＆NCIPI

10. 发明专利

JP2005070680A Continuous emulsification apparatus and method for manufacturing toner by using the apparatus 有权
标题翻译：连续显示装置及使用设备制造调色剂的方法
公开(公告)号：JP2005070680A
公开(公告)日：2005-03-17
申请号：JP2003303552
申请日：2003-08-27
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKAHASHI HIROSHI , KURODA NOBORU , KADOTA TAKAHIRO , KOZU OSAMU , NISHIZAKI TOSHINAGA
IPC分类号： G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a granulation method with proper balance of emulsification and unification, to easily manufacture toner having a stable volume average particle size without depending on the process and having sharp distribution of the particle size, and as a result, realizing faithful development of a latent image resulting in reproduction of a full-color image having high image quality, and to provide a method of manufacturing the toner. SOLUTION: The apparatus for manufacturing toner for electrophotographic image formation is equipped with a continuous emulsifying machine and is used for the method of dissolving or dispersing a toner composition, containing at least resin, coloring agents and release agents in an organic solvent and of continuously emulsifying the dissolved product or the dispersion material in an aqueous medium. The apparatus is equipped with a means which can vary the retention volume in the emulsifying mechanism. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供具有适当的乳化和均匀平衡的造粒方法，以便容易地制造具有稳定的体积平均粒度的调色剂，而不依赖于该方法并具有明显的粒度分布，结果实现潜像的忠实发展，导致再现具有高图像质量的全色图像，并提供制造调色剂的方法。解决方案：用于制造用于电子照相成像的调色剂的设备装备有连续乳化机，并用于将至少含有树脂，着色剂和脱模剂的调色剂组合物溶解或分散在有机溶剂中的方法，在水性介质中连续乳化溶解产物或分散体材料。该装置配备有可以改变乳化机构中的保留体积的装置。版权所有（C）2005，JPO＆NCIPI

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