公开(公告)号：JP2012088407A

公开(公告)日：2012-05-10

申请号：JP2010233142

申请日：2010-10-15

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KUBO MASAHIKO

IPC: G03G9/08 ,  G03G9/09 ,  G03G9/10 ,  G03G15/20

Abstract: PROBLEM TO BE SOLVED: To provide a photo-fixing toner and a two-component developer capable of maintaining sufficient fixing property only with a fixing device employing a laser fixing system, showing good color reproducibility and having high flexibility for selecting a toner raw material.SOLUTION: The photo-fixing toner 1 is used in a fixing device that fixes a toner to a recording medium by irradiating the toner with light having a wavelength in an absorption wavelength region of a colorant. The photo-fixing toner 1 comprises toner base particles 2 containing a binder resin and a colorant but no IR absorbent, and a resin coating layer 3 formed on the surfaces of the toner base particles, the resin coating layer 3 containing a coating resin and wax 4 that reflects laser light, in which the wax 4 is dispersed in the layer.

Abstract translation: 要解决的问题：为了提供一种光固定调色剂和能够仅使用采用激光定影系统的定影装置来保持足够定影性的双组分显影剂，显示出良好的色彩再现性并且具有高柔性以选择调色剂 原材料。 解决方案：光固定调色剂1用于通过用着色剂的吸收波长区域中的波长的光照射调色剂而将调色剂固定到记录介质的定影装置。 光固定调色剂1包括含有粘合剂树脂和着色剂但不含IR吸收剂的调色剂基础颗粒2和形成在调色剂基础颗粒的表面上的树脂涂层3，包含涂料树脂和蜡的树脂涂层3 这反映了其中蜡4分散在该层中的激光。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011197160A

公开(公告)日：2011-10-06

申请号：JP2010061692

申请日：2010-03-17

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KUBO MASAHIKO

IPC: G03G9/09

CPC classification number: G03G9/0827 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0823 ,  G03G9/0825 ,  G03G9/0926 ,  G03G9/097 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/09733 ,  G03G9/09775

Abstract: PROBLEM TO BE SOLVED: To provide a light fixable toner which contains no infrared ray absorbent and is fixed by light irradiation, and to provide a two-component developer containing the light fixable toner, and a method for producing the light fixable toner.SOLUTION: The light fixable toner contains a binder resin, a colorant and an internal additive having an average particle size of 0.50 μm or more and 1.40 μm or less, wherein the toner has a shape factor SF-2 of 105 or more and 120 or less and a relative refractive index n/n, which is a ratio of the absolute refractive index nof the internal additive to the absolute refractive index nof the binder resin, of 0.90 or more and 0.97 or less.

Abstract translation: 要解决的问题：提供一种不含红外线吸收剂并通过光照射固定的可固色调色剂，并提供含有可固色调色剂的双组分显影剂，以及用于制造可光固化调色剂的方法。 光固定性调色剂含有平均粒径为0.50μm以上且1.40μm以下的粘合剂树脂，着色剂和内部添加剂，其中调色剂的形状因子SF-2为105以上且120以下， 相对折射率n / n，其为内部添加剂的绝对折射率与粘合剂树脂的绝对折射率的比值为0.90以上且0.97以下。

公开(公告)号：JP2011059144A

公开(公告)日：2011-03-24

申请号：JP2009205346

申请日：2009-09-04

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KUBO MASAHIKO

IPC: G03G9/08 ,  G03G9/09

Abstract: PROBLEM TO BE SOLVED: To provide a light fixing toner fixed by light irradiation without containing an infrared absorber, and a single-component developer and a two-component developer containing the light fixing toner.
SOLUTION: An infrared-absorber-free light fixing toner includes toner base particles containing a binder resin and a colorant where a shape of the toner base particle is cylindrical and an aspect ratio is 0.21-0.49.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供通过光照射而不含红外线吸收剂固定的光固色剂，以及含有光固色调色剂的单组分显影剂和双组分显影剂。 解决方案：不含红外线吸收剂的光固定调色剂包括含有粘合剂树脂和着色剂的调色剂基础颗粒，其中调色剂基础颗粒的形状为圆柱形，纵横比为0.21-0.49。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2009134007A

公开(公告)日：2009-06-18

申请号：JP2007309188

申请日：2007-11-29

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： ARIYOSHI SATOSHI ,  KUBO MASAHIKO ,  AKAZAWA YOSHIAKI

IPC: G03G9/087 ,  G03G9/08

CPC classification number: G03G9/08797 ,  G03G9/081 ,  G03G9/08757 ,  G03G9/08795

Abstract: PROBLEM TO BE SOLVED: To provide: a toner which takes into account preservation of the global environment and which is excellent in fixability and storage stability and moreover, good in light transmittance; a method for manufacturing the toner; a two-component developer; a developing device; and an image forming apparatus. SOLUTION: The toner comprises at least a binder resin and a colorant, wherein the binder resin comprises a resin as a major component and a biomass-containing crystalline resin. The crystalline resin is included in an amount of ≥1 part by weight to ≤50 parts by weight based on 100 parts by weight of the binder resin; and the melting point of the crystalline resin is higher by a temperature of from 5°C to 10°C than a temperature at which a loss modulus G" of the toner at a frequency of 1 Hz is 10 3 Pa. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供：考虑到全球环境的保存并且定影性和储存稳定性优异，并且透光性好的调色剂; 调色剂的制造方法; 一个双组分开发商; 显影装置; 和图像形成装置。 解决方案：调色剂至少包含粘合剂树脂和着色剂，其中粘合剂树脂包括作为主要成分的树脂和含生物质的结晶树脂。 相对于100重量份的粘合剂树脂，结晶性树脂的含量为≥1重量份〜≤50重量份。 并且结晶性树脂的熔点比在1Hz频率下的调色剂的损耗模量G“为10 3 的温度高5℃至10℃的温度 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2005321473A

公开(公告)日：2005-11-17

申请号：JP2004137613

申请日：2004-05-06

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MATSUMOTO HIROO ,  AKAZAWA YOSHIAKI ,  KUBO MASAHIKO ,  OGAWA SATORU ,  NAKATSU HIROMI ,  TOIZUMI KIYOSHI ,  INOUE TOMOKO ,  SUZUKI MASARO

IPC: G03G9/08 ,  G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing an electrophotographic toner by which a release agent and a colorant can be satisfactorily dispersed in a binder resin with an open roll type continuous kneading machine and by which excellent durability and a sufficient anti-offset region can be ensured.
SOLUTION: An electrophotographic toner is manufactured as follows; a binder resin comprising, in a molecular weight distribution, a high molecular weight component (having a weight average molecular weight of 100,000-120,000 and a melting point of 120-160°C), a medium molecular weight component (having a weight average molecular weight of 80,000-100,000 and a melting point of 90-100°C) and a low molecular weight component (having a weight average molecular weight of 10,000-20,000 and a melting point of 100-110°C), a release agent which is contained in a starting material mixture in an amount of ≥5 wt.% and is internally added to the binder resin, and a colorant are preliminarily mixed to prepare a starting compound, this starting compound is melted and kneaded with an open roll type continuous kneading machine 1, and the resulting kneaded material is pulverized and classified.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种电子照相调色剂的制造方法，通过该方法可以使用开式辊式连续捏合机将脱模剂和着色剂令人满意地分散在粘合剂树脂中，并且其具有优异的耐久性和足够的抗反射性 可以确保偏移区域。 电解质：如下制造电子照相调色剂; 粘合剂树脂，其分子量分布包含高分子量成分（重均分子量为100,000〜120,000，熔点为120〜160℃），中等分子量成分（重均分子量 重量为80,000-100,000，熔点为90-100℃）和低分子量组分（重均分子量为10,000-20,000，熔点为100-110℃），脱模剂为 在原料混合物中含量为5重量％以上，并在内部添加到粘合剂树脂中，预先混合着色剂以制备起始化合物，将该起始化合物用开放式连续捏合 机1，将得到的混炼物粉碎分级。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2005250051A

公开(公告)日：2005-09-15

申请号：JP2004059538

申请日：2004-03-03

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KUBO MASAHIKO ,  OGAWA SATORU ,  AKAZAWA YOSHIAKI ,  NAKATSU HIROMI ,  MATSUMOTO HIROO ,  SUZUKI MASARO

IPC: G03G9/08

CPC classification number: G03G9/09725 ,  G03G9/09708

Abstract: PROBLEM TO BE SOLVED: To provide toner having properties that an image formed by an image forming apparatus by electrophotography can maintain a favorable image with uniform image density from the initial stage and for a long period of time. SOLUTION: The toner 1 comprises toner mother particles 2 containing at least a colorant and a binder resin, silica 3 having 40 nm to 200 nm average particle diameter, and aluminum oxide-silicon dioxide mixture oxide 4 having 5 nm to 25 nm average particle diameter. The silica and the aluminum oxide-silicon dioxide mixture oxide are externally added to the toner mother particles. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：为了提供具有通过电子照相术通过图像形成装置形成的图像的特性的调色剂可以保持从初始阶段和长时间均匀的图像浓度的良好图像。 解决方案：调色剂1包含至少含有着色剂和粘合剂树脂的调色剂母粒2，平均粒径为40nm至200nm的二氧化硅3和具有5nm至25nm的氧化铝 - 二氧化硅混合物氧化物4 平均粒径。 将二氧化硅和氧化铝 - 二氧化硅混合物氧化物外部添加到调色剂母体颗粒中。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2005208417A

公开(公告)日：2005-08-04

申请号：JP2004016015

申请日：2004-01-23

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： NAKATSU HIROMI ,  KUBO MASAHIKO ,  OGAWA SATORU ,  AKAZAWA YOSHIAKI ,  MATSUMOTO HIROO

IPC: G03G9/08 ,  G03G9/087 ,  G03G9/09

Abstract: PROBLEM TO BE SOLVED: To provide a magenta toner having high coloring power and saturation and excellent color reproducing property and realizing a favorable color image.
SOLUTION: In the manufacture of the magenta toner containing at least a binder resin and a colorant, the magenta toner is designed in such a manner that difference in transmittance (T2-T1) is less than 10, wherein T1 (%) is the transmittance at the maximum transmittance wavelength in the shorter wavelength region than 500 nm when the toner is formed into a toner film on a transparent sheet and has the film thickness showing 1% transmittance at the maximum absorption wavelength in a 400 nm to 700 nm wavelength region, and T2 (%) is the transmittance at the maximum transmittance wavelength in the shorter wavelength region than 500 nm when the toner film has the film thickness showing 3% transmittance at the maximum absorption wavelength. Since the magenta toner having the above characteristics has high dispersibility of the component such as the colorant, the obtained toner has high coloring power and saturation, and excellent color reproducibility and realizes a favorable color image.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供具有高着色力和饱和度以及优异的色彩再现特性的品红色调色剂，并实现有利的彩色图像。 ＆lt; P＆gt;解决方案：在制造含有至少粘合剂树脂和着色剂的品红色调色剂时，品红色调色剂以不透光度（T2-T1）小于10的方式设计，其中T1（％） 是当调色剂在透明片上形成调色剂膜时在较短波长区域中的最大透射波长处的透射率超过500nm，并且具有在400nm至700nm的最大吸收波长处具有1％透射率的膜厚度 波长区域，T2（％）是当调色剂膜具有在最大吸收波长处的3％透射率的膜厚度时，在较短波长区域中的最大透射波长处的透射率大于500nm。 由于具有上述特征的品红色调色剂具有着色剂等成分的高分散性，所以得到的调色剂具有高的着色力和饱和度，并具有优异的色彩再现性，并且实现了良好的彩色图像。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2004029160A

公开(公告)日：2004-01-29

申请号：JP2002182028

申请日：2002-06-21

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： OGAWA SATORU ,  KUBO MASAHIKO ,  SAWAI MASAYUKI ,  KIDA YASUSHI

IPC: G03G9/08 ,  G03G9/087

CPC classification number: G03G9/08755 ,  G03G9/08782

Abstract: PROBLEM TO BE SOLVED: To provide a black toner which satisfies the requirements of reduction in energy consumption, speeding up and enhancement of performance, and a color toner which is put to practical use in an image forming apparatus with an oilless fixing device, and also to provide a desirable color toner obtained using the above black toner and color toner. SOLUTION: In the black toner, a polyester resin having an acid value of 7-20 mgKOH/g is used as a binding resin and a carboxylic acid modified paraffin wax having an acid value of 4-30 mgKOH/g is used as a wax. In the color toner, a polyester resin having an acid value of 7-20 mgKOH/g is used and a carboxylic acid modified paraffin wax having an acid value of 6-25 mgKOH/g is used as a wax. COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2010039005A

公开(公告)日：2010-02-18

申请号：JP2008199005

申请日：2008-07-31

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KUBO MASAHIKO ,  TOIZUMI KIYOSHI

IPC: G03G9/08 ,  G03G9/087 ,  G03G15/08

Abstract: PROBLEM TO BE SOLVED: To provide toner which secures cleaning properties and toner-charging properties over a long period of time, and to provide a developer containing the toner, a developing device which suppresses degradation of the image quality and toner scattering inside a machine by using the above developer, and to provide an image forming apparatus. SOLUTION: The toner is provided, wherein silicon element-containing oxide fine particles are externally doped to toner particles, the toner base particles have a volume average particle diameter of 4-8 μm; a percentage of water content is ≥0.2 wt.% in an environment of 10 g/m 3 absolute humidity and ≤0.7 wt.% in an environment of 35 g/m 3 absolute humidity. The silicon element-containing oxide fine particles have an average primary particle diameter of 70-150 nm, percentage of water content is ≤3.0 wt.% in an environment of 14 g/m 3 absolute humidity. An image is formed, by filling a developing device 14 of an image forming apparatus 1 with a developer that contains such a toner. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了提供长时间保持清洁性和调色剂充电性能的调色剂，并提供含有调色剂的显影剂，可以抑制图像质量劣化的显影装置和调色剂散射内部的调色剂 通过使用上述显影剂的机器，并提供图像形成装置。 解决方案：提供调色剂，其中含硅元素的氧化物细颗粒外部掺杂到调色剂颗粒上，调色剂基础颗粒的体积平均粒径为4-8μm; 在35g / m 3 SPR的环境下，在10g / m 3绝对湿度和≤0.7wt％的环境中，含水率为≥0.2wt％ 绝对湿度 含硅元素氧化物微粒的平均一次粒径为70-150nm，在14g / m 3绝对湿度的环境中，水分含量的百分比≤3.0重量％。 通过用含有这种调色剂的显影剂填充图像形成装置1的显影装置14来形成图像。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2006235344A

公开(公告)日：2006-09-07

申请号：JP2005051247

申请日：2005-02-25

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： OGAWA SATORU ,  ISHIDA TOSHINAO ,  SAWAI MASAYUKI ,  KIDA YASUSHI ,  NISHIKAWA TORU ,  TOIZUMI KIYOSHI ,  KUBO MASAHIKO

IPC: G03G9/097 ,  G03G9/08 ,  G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide a toner not undergoing the effect of change in temperature and humidity, with high charging stability and having good fixing property and releasability.
SOLUTION: The electrophotographic toner includes a toner parent body particle containing at least a binder resin, a colorant, a charge controller and an additive, in which the binder resin comprises a polyester resin obtained by reacting an aromatic alcohol ingredient, the charge controller comprises an organic bentonite and the additive comprises metatitanic acid subjected to hyrdophobization processing.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供不具有温度和湿度变化的调色剂，具有高充电稳定性和良好的定影性和脱模性的调色剂。 电解调色剂：电子照相调色剂包括至少含有粘合剂树脂，着色剂，充电控制剂和添加剂的调色剂母体颗粒，其中粘合剂树脂包括通过使芳族醇成分反应获得的聚酯树脂， 控制器包括有机膨润土，并且添加剂包括经过氢化磷酸化处理的偏钛酸。 版权所有（C）2006，JPO＆NCIPI