公开(公告)号：US5884129A

公开(公告)日：1999-03-16

申请号：US863914

申请日：1997-05-27

申请人： Masanori Ichimura ,  Michio Take ,  Hidekazu Yaguchi ,  Masaki Hashimoto ,  Takashi Imai ,  Hiroshi Takano ,  Masahiro Takagi ,  Akihiro Iizuka ,  Yuka Ishihara

发明人： Masanori Ichimura ,  Michio Take ,  Hidekazu Yaguchi ,  Masaki Hashimoto ,  Takashi Imai ,  Hiroshi Takano ,  Masahiro Takagi ,  Akihiro Iizuka ,  Yuka Ishihara

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/09 ,  G03G9/10 ,  G03G13/08 ,  G03G15/08 ,  G03G15/09

CPC分类号： G03G9/0821 ,  G03G13/08 ,  G03G9/0904 ,  G03G9/10

摘要： An electrostatic-image developer which comprises: (i) a toner comprising: (a) toner particles containing carbon black in an amount of from 6 to 8% by weight based on the weight of the toner particles and having a volume-average particle diameter of from 3 to 9 .mu.m; and (b) an external additive; and (ii) a resin-coated carrier having a volume resistivity of from 10.sup.7 to 10.sup.11 .OMEGA..multidot.cm in an electric field of 10.sup.3.8 V/cm and an average particle diameter of from 30 to 60 .mu.m. Also disclosed are a process for forming a black image and a process for forming a full-color image each using the electrostatic-image developer.

摘要翻译： 一种静电图像显影剂，其包括：（i）调色剂，其包含：（a）基于调色剂颗粒的重量，含有6至8重量％的碳黑的调色剂颗粒，并且具有体积平均粒径 3〜9亩; 和（b）外部添加剂; 和（ii）电场为103.8V / cm，平均粒径为30〜60μm的体积电阻率为107〜1011欧米伽×厘米的树脂被覆载体。 还公开了一种用于形成黑色图像的过程和用于形成使用静电图像显影剂的全色图像的处理。

公开(公告)号：US5804351A

公开(公告)日：1998-09-08

申请号：US730932

申请日：1996-10-16

申请人： Hiroshi Takano ,  Masanori Ichimura ,  Masaki Hashimoto ,  Hideyuki Akagi ,  Kazuya Furuta ,  Koji Fukushima ,  Masahiro Takagi ,  Kensaku Togao ,  Satoru Ishigaki ,  Michio Take ,  Yuka Ishihara

发明人： Hiroshi Takano ,  Masanori Ichimura ,  Masaki Hashimoto ,  Hideyuki Akagi ,  Kazuya Furuta ,  Koji Fukushima ,  Masahiro Takagi ,  Kensaku Togao ,  Satoru Ishigaki ,  Michio Take ,  Yuka Ishihara

IPC分类号： G03G9/08 ,  G03G9/097

CPC分类号： G03G9/0819 ,  G03G9/09708

摘要： A toner for electrostatic-image development which comprises toner particles comprising a colorant and a binder resin, the toner particles having a volume-average particle diameter of from 3 to 9 .mu.m and a particle size distribution satisfying the following expressions (1) and (2): D16(v)/D50(v).ltoreq.1.475-0.036.times.D50(v) (1) D50(p)/D84(p).ltoreq.1.45 (2) wherein D16(v) and D50(v) represent, in terms of absolute value, a cumulative 16% diameter (.mu.m) and a cumulative 50% diameter (.mu.m), respectively, of a cumulative volume particle diameter distribution of the toner particles depicted from the larger diameter side, and D50(p) and D84(p) represent, in terms of absolute value, a cumulative 50% diameter (.mu.m) and a cumulative 84% diameter (.mu.m), respectively, of a cumulative population particle diameter distribution of the toner particles depicted from the larger diameter side.

摘要翻译： 一种用于静电图像显影的调色剂，其包含包含着色剂和粘合剂树脂的调色剂颗粒，调色剂颗粒的体积平均粒径为3至9μm，粒度分布满足以下表达式（1）和（ 2）：D16（v）/ D50（v）

公开(公告)号：US06242146B1

公开(公告)日：2001-06-05

申请号：US09499454

申请日：2000-02-07

申请人： Yuka Ishihara ,  Hiroshi Nakazawa ,  Akihiro Iizuka ,  Yoshifumi Iida ,  Kaori Oishi ,  Tomohito Nakajima ,  Takashi Imai ,  Masanori Ichimura

发明人： Yuka Ishihara ,  Hiroshi Nakazawa ,  Akihiro Iizuka ,  Yoshifumi Iida ,  Kaori Oishi ,  Tomohito Nakajima ,  Takashi Imai ,  Masanori Ichimura

IPC分类号： G03G9113

CPC分类号： G03G9/10

摘要： A carrier for two-component electrostatic-charged image developer, at least the surface of which is coated with a resin, is provided. The apparent density &rgr; (g/cm3) of the carrier, the mean particle diameter D (cm) of the carrier, and the specific area S (cm2/g) of the carrier core material satisfy the following conditions: 600≦S≦1500 10/(D×&rgr;)−S≦300. A two-component developer and an image-forming process using the carrier are also provided.

摘要翻译： 提供了至少其表面涂覆有树脂的双组分静电电荷显影剂载体。 载体的表观密度rho（g / cm 3），载体的平均粒径D（cm）和载体芯材的比表面积S（cm 2 / g）满足以下条件：双组分显影剂 并且还提供使用该载体的图像形成处理。

公开(公告)号：US06214512B1

公开(公告)日：2001-04-10

申请号：US09006819

申请日：1998-01-14

申请人： Hiroshi Takano ,  Yuka Ishihara ,  Takashi Imai ,  Masanori Ichimura

发明人： Hiroshi Takano ,  Yuka Ishihara ,  Takashi Imai ,  Masanori Ichimura

IPC分类号： G03G1314

CPC分类号： G03G9/097 ,  G03G15/162

摘要： In an image forming method having the step of developing an electrostatic latent image on an electrostatic latent image carrying member using a toner layer on a developer carrying member, the step of transferring the developed toner image onto a belt transfer body 7 which is a first transfer body, and the step of transferring the toner image formed on the belt transfer body 7 onto a second transfer body 11, the surface resistance of the belt transfer body 7 is 108 to 1015 &OHgr;·cm, the toner is composed of at least resin particles containing a binding resin and a coloring material, and an additive, and the additive contains particles whose volume resistance is 107 to 1013 &OHgr;·cm.

摘要翻译： 在具有使用显影剂承载构件上的调色剂层在静电潜像承载构件上显影静电潜像的步骤的图像形成方法中，将显影的调色剂图像转印到作为第一次转印的带转印体7上的步骤 主体和将形成在带传送体7上的调色剂图像转印到第二转印体11上的步骤，带传送体7的表面电阻为108至1015欧米汞厘米，调色剂至少由树脂颗粒 含有粘合树脂和着色材料的添加剂和添加剂，并且添加剂含有体积电阻为107〜1013欧姆·厘米的颗粒。

公开(公告)号：US6001527A

公开(公告)日：1999-12-14

申请号：US995221

申请日：1997-12-19

申请人： Yuka Ishihara ,  Masanori Ichimura ,  Takashi Imai ,  Hiroshi Takano ,  Hiroshi Nakazawa ,  Yoshifumi Iida ,  Susumu Yoshino

发明人： Yuka Ishihara ,  Masanori Ichimura ,  Takashi Imai ,  Hiroshi Takano ,  Hiroshi Nakazawa ,  Yoshifumi Iida ,  Susumu Yoshino

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/09 ,  G03G9/097 ,  G03G9/113 ,  G03G15/08

CPC分类号： G03G9/09716 ,  G03G9/0819 ,  G03G9/08755 ,  G03G9/09725 ,  G03G9/113

摘要： The present invention provides an electrostatic image developer comprising a toner and a carrier wherein the toner includes toner particles having an average particle diameter of 3 to 9 .mu.m, a hydrophobic silica microparticles having a BET specific surface area of 40 to 120 m.sup.2 /g, and a hydrophobic titanium compound microparticles having a BET specific surface area of 40 to 250 m.sup.2 /g; and wherein the carrier is a resin coated carrier having a coating layer of a resin. The electrostatic image developer can improve the environmental dependency of charging, power fluidity, resistance to caking of a toner and reduced change in charging with time course to provide an image with an excellent image quality for a long period of time.

摘要翻译： 本发明提供一种包含调色剂和载体的静电图像显影剂，其中调色剂包括平均粒径为3至9μm的调色剂颗粒，BET比表面积为40至120m 2 / g的疏水性二氧化硅微粒， 和BET比表面积为40〜250m 2 / g的疏水钛化合物微粒; 并且其中所述载体是具有树脂涂层的树脂涂布载体。 静电图像显影剂可以改善充电的环境依赖性，功率流动性，抵抗调色剂的结块和随时间变化的充电变化，以长时间提供具有优异图像质量的图像。

公开(公告)号：US5663021A

公开(公告)日：1997-09-02

申请号：US657093

申请日：1996-06-04

申请人： Kiyoshi Hosoi ,  Tsukasa Matsuda ,  Masanori Ichimura ,  Yuka Ishihara ,  Takashi Sakai

发明人： Kiyoshi Hosoi ,  Tsukasa Matsuda ,  Masanori Ichimura ,  Yuka Ishihara ,  Takashi Sakai

IPC分类号： G03G7/00 ,  G03G9/087 ,  G03G9/09 ,  G03G13/16 ,  G03G15/20

CPC分类号： G03G13/16 ,  G03G7/0006 ,  G03G7/0046 ,  G03G9/08795 ,  G03G9/08797 ,  Y10T428/24802

摘要： A film for electrophotographic transfer comprising a transparent plastic film having a heat resistance temperature of 100.degree. C. or higher having provided on at least one side thereof a transparent resin layer, wherein the transparent resin layer comprises a polyester resin having a peak count value (A) in GPC molecular weight measurement which satisfies relationship: -30.ltoreq.A-B.ltoreq.+20, in which B is a peak count value of the binder resin of a color toner used for fixing, and an initial count value (Cp) in the GPC molecular weight measurement which satisfies relationship: -500.ltoreq.Cp-Ct.ltoreq.-200, in which Ct is an initial count value in the GPC molecular weight measurement of the binder resin of a color toner used for fixing, or a polyester resin having a weight average molecular weight of from 15000 to 40000 and a weight average molecular weight to number average molecular weight ratio of from 3.5 to 10; the transparent resin layer has a thickness of from 1 to 8 .mu.m, and the transparent resin layer forms a contact angle of not more than 50.degree. with a color toner to be fixed thereon in a molten state at a fixing temperature.

摘要翻译： 一种电子照相转印用薄膜，其特征在于，在透明树脂层的至少一侧设置耐热温度为100℃以上的透明塑料薄膜，所述透明树脂层含有具有峰值计数值的聚酯树脂（ A）在GPC分子量测量中，其满足关系：-30

公开(公告)号：US06864029B2

公开(公告)日：2005-03-08

申请号：US10307313

申请日：2002-12-02

申请人： Hirokazu Hamano ,  Manabu Serizawa ,  Katsumi Daimon ,  Yuka Ishihara ,  Norihito Fukushima ,  Takashi Imai

发明人： Hirokazu Hamano ,  Manabu Serizawa ,  Katsumi Daimon ,  Yuka Ishihara ,  Norihito Fukushima ,  Takashi Imai

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G15/20

CPC分类号： G03G9/08782 ,  G03G9/0804 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797

摘要： The present invention uses a crystalline resin as a binding resin and provides a toner insuring excellent storability of a resulting image, a method of manufacturing the toner, an electrostatically charged image developer containing the toner, and an image forming method. In the electrophotographic toner containing toner mother particles comprising at least a binding resin and a colorant, a main component of said binding resin comprises a crystalline resin with a melting point in the range from 50 to 120° C. and an average volume particle size in the range from 3.0 to 7.5 μm, while an average value of the BET specific areas of said toner mother particles is in the range from 0.6 to 3.0 m2/g. The electrophotographic toner manufacturing method comprises the steps of coalescing or associating the binding resin particles with colorant particles, and cooling the aggregated particles at the rate of at least 1° C. per minute or more to a temperature below the crystallizing temperature of the binding resin to generate toner particles.

摘要翻译： 本发明使用结晶树脂作为粘合树脂，并提供确保所得图像的优异保存性的调色剂，调色剂的制造方法，含有调色剂的带静电电荷的图像显影剂和图像形成方法。 在含有至少包含粘合树脂和着色剂的调色剂母体颗粒的电子照相调色剂中，所述粘合树脂的主要成分包括熔点在50-120℃范围内的结晶树脂，平均体积粒径 3.0至7.5μm的范围，而所述调色剂母粒的BET比表面积的平均值在0.6-3.0m 2 / g的范围内。 电子照相调色剂制造方法包括以下步骤：将结合树脂颗粒与着色剂颗粒聚结或结合，并且以至少1℃/分钟或更高的速率将聚集颗粒冷却至低于粘合树脂的结晶温度的温度 以产生调色剂颗粒。

公开(公告)号：US06607864B2

公开(公告)日：2003-08-19

申请号：US10014555

申请日：2001-12-14

申请人： Manabu Serizawa ,  Katsumi Daimon ,  Hirokazu Hamano ,  Yuka Ishihara ,  Norihito Fukushima ,  Takashi Imai

发明人： Manabu Serizawa ,  Katsumi Daimon ,  Hirokazu Hamano ,  Yuka Ishihara ,  Norihito Fukushima ,  Takashi Imai

IPC分类号： G03G1520

CPC分类号： G03G9/081 ,  G03G9/0804 ,  G03G9/0808 ,  G03G9/0815 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09

摘要： An image forming method makes the warming-up time short, enables the formation of high-quality images even when fixing is performed continuously at high speed, and restrains degradations of the image quality, such as non-uniformity of gloss and non-uniformity of coloration even under high-temperature and high-humidity conditions. The method uses a toner that is wide in fixing range and is especially excellent in low-temperature fixing property. The method contains a process of melting and thereby fixing a toner image formed by unfixed toner, by heating a heating member that is in contact with the toner image. The surface of the heating member or its vicinity that is in contact with the toner image generates heat, and the toner contains at least a colorant and a binder resin having a crystalline resin with a number average molecular weight of 1500 or more as the main component.

公开(公告)号：US06569592B2

公开(公告)日：2003-05-27

申请号：US10014565

申请日：2001-12-14

申请人： Yuka Ishihara ,  Katsumi Daimon ,  Manabu Serizawa ,  Hirokazu Hamano ,  Norihito Fukushima ,  Takashi Imai

发明人： Yuka Ishihara ,  Katsumi Daimon ,  Manabu Serizawa ,  Hirokazu Hamano ,  Norihito Fukushima ,  Takashi Imai

IPC分类号： G03G1320

CPC分类号： G03G9/0821 ,  G03G9/08755 ,  G03G9/08797 ,  G03G13/20 ,  G03G15/206 ,  G03G2215/2009

摘要： Provided is an image forming method capable of forming an image at a high speed, simultaneously performing a low temperature fusing property and hot offset resistance and controlling gloss. The image forming method includes a developing step of forming a toner image by developing an electrostatic latent image formed on a latent image holding member by a developer containing at least a toner, a transferring step of forming a transfer image by transferring the toner image formed on the latent image holding member onto a transfer material, and a fusing step of fusing the toner image transferred on the transfer material. In the image forming method, the toner contains at least a colorant and a binder resin in which a principal component is a crystalline resin and the fusing step is performed by a fusing apparatus having a heat-fixing roll and an endless belt.

摘要翻译： 提供一种能够高速形成图像，同时执行低温熔融性和耐热粘合性并控制光泽的图像形成方法。 图像形成方法包括显影步骤，通过将至少包含调色剂的显影剂显影在潜像保持构件上形成的静电潜像来形成调色剂图像;转印步骤，通过转印形成在 潜影保持构件到转印材料上，以及熔融步骤，其将转印在转印材料上的调色剂图像进行定影。 在图像形成方法中，调色剂至少包含着色剂和粘结剂树脂，其中主要成分是结晶树脂，并且熔融步骤通过具有热定影辊和环形带的定影装置进行。

公开(公告)号：US20050208414A1

公开(公告)日：2005-09-22

申请号：US10963728

申请日：2004-10-14

申请人： Masaki Nakamura ,  Takashi Imai ,  Katsumi Daimon ,  Yuka Ishihara ,  Hirokazu Yamada ,  Hirokazu Hamano ,  Norihito Fukushima ,  Yasuhiro Arima

发明人： Masaki Nakamura ,  Takashi Imai ,  Katsumi Daimon ,  Yuka Ishihara ,  Hirokazu Yamada ,  Hirokazu Hamano ,  Norihito Fukushima ,  Yasuhiro Arima

IPC分类号： G03G9/087 ,  G03G9/08 ,  G03G9/093 ,  G03G9/097 ,  G03G15/20

CPC分类号： G03G9/09392 ,  G03G9/0821 ,  G03G9/0823 ,  G03G9/0825 ,  G03G9/0827 ,  G03G9/08782 ,  G03G9/09328 ,  G03G9/0935 ,  G03G9/09371 ,  G03G9/09716 ,  G03G9/09725

摘要： An electrophotographic toner having a core-shell structure including a crystalline resin in its core region or a sea-island structure including a crystalline resin in its island region, wherein the toner has 1) a resistance of 5.0×1012 Ω·cm or higher, 2) a dynamic viscosity coefficient of 3×103 Pa·s or higher at a temperature which is 50° C. higher than a melting point of the crystalline resin, and 3) a dynamic viscosity coefficient of 1×105 Pa·s or lower at a temperature which is 10° C. higher than the melting point of the crystalline resin.

摘要翻译： 一种具有芯壳结构的核 - 壳结构的电子照相调色剂或其岛状区域中包含结晶树脂的海岛结构，其中调色剂具有1）电阻5.0×10 12 / > Omega.cm或更高，2）在比结晶树脂的熔点高50℃的温度下，动态粘度系数为3×10 3 Pa或更高，以及3） 在比结晶树脂的熔点高10℃的温度下，动态粘度系数为1×10 5 Pa或更低。