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    • 6. 发明授权
    • Toner, image forming apparatus using the same, image forming method using the same, and process cartridge
    • 调色剂,使用其的成像装置,使用其的成像方法和处理盒
    • US08007974B2
    • 2011-08-30
    • US11943929
    • 2007-11-21
    • Shinya NakayamaAkihiro KotsugaiYasuaki IwamotoYasutada Shitara
    • Shinya NakayamaAkihiro KotsugaiYasuaki IwamotoYasutada Shitara
    • G03G9/097
    • G03G9/09783G03G9/0823G03G9/08755G03G9/08775G03G9/08795G03G9/08797
    • A toner that is excellent in low-temperature fixing property, offset resistance, storage stability, charge rising property, charge stability with time and pulverizability and allows for forming high-quality images over a long period of time. The toner contains at least a binder resin, a colorant and a charge controlling agent, wherein the charge controlling agent contains an aromatic oxycarboxylic acid metal compound having a trivalent or more central metal, the binder resin comprises a polyester resin (A) having a softening point Tm (A) of 120° C. to 160° C. and a polyester resin (B) having a softening point Tm (B) of 80° C. to less than 120° C., and at least any one of the polyester resins (A) and (B) contains 1,2-propane diol at 65 mol % or more in a divalent alcohol component and can be obtained by condensation polymerizing an alcohol component substantially composed of only an aliphatic alcohol with a carboxylic acid component.
    • 具有优异的低温定影性,抗偏移性,储存稳定性,电荷上升性,电荷稳定性随时间和粉碎性并且允许长时间形成高质量图像的调色剂。 调色剂至少含有粘合剂树脂,着色剂和电荷控制剂,其中电荷控制剂含有具有三价或更多中心金属的芳族羟基羧酸金属化合物,粘合剂树脂包括具有软化的聚酯树脂(A) 点Tm(A)为120℃〜160℃,软化点Tm(B)为80℃以上且小于120℃的聚酯树脂(B)为至少 聚酯树脂(A)和(B)含有在二价醇成分中为65摩尔%以上的1,2-丙二醇,可以通过将基本上仅由脂肪醇构成的醇成分与羧酸成分进行缩聚而得到。
    • 7. 发明授权
    • Image forming apparatus, image forming method, and process cartridge
    • 图像形成装置,图像形成方法和处理盒
    • US07718340B2
    • 2010-05-18
    • US11755517
    • 2007-05-30
    • Yasuaki IwamotoYohichiroh WatanabeYasutada Shitara
    • Yasuaki IwamotoYohichiroh WatanabeYasutada Shitara
    • G03G15/02G03G15/06G03G15/16
    • G03G9/08755G03G9/08775G03G9/08795G03G9/08797G03G15/2025G03G2215/2032
    • To provide an image forming apparatus, image forming method and process cartridge, which are excellent in low-temperature fixation properties, storage stability, durability and filming resistance, can reduce generation of odor, and are capable of forming an extremely high quality image. The apparatus includes: a latent electrostatic image bearing member; a charging unit; an exposing unit; a developing unit; a transferring unit; and a fixing unit; wherein the toner comprises a binder resin and coloring agent, and the binder resin comprises a polyester-based resin (A) and polyester-based resin (B) having a melting point at least 10° C. higher than that of the polyester-based resin (A), and at least one of the polyester-based resins (A) and (B) is a resin derived from a (meth)acrylic acid modified rosin and includes a polyester unit obtained by condensation polymerization of an alcohol component and a carboxylic acid component containing a (meth)acrylic acid modified rosin.
    • 为了提供低温定影性,保存稳定性,耐久性和耐成膜性优异的图像形成装置,成像方法和处理盒,可以减少气味的产生,并且能够形成极高质量的图像。 该装置包括:静电潜像承载部件; 充电单元; 曝光单元; 一个发展单位; 转移单元; 和固定单元; 其中调色剂包括粘合剂树脂和着色剂,并且粘合剂树脂包括聚酯基树脂(A)和聚酯基树脂(B),其熔点比聚酯基树脂(A)高至少10℃ 树脂(A),所述聚酯类树脂(A)和(B)中的至少一种为衍生自(甲基)丙烯酸改性松香的树脂,包括通过醇成分和 羧酸成分含有(甲基)丙烯酸改性松香。
    • 8. 发明授权
    • Image forming apparatus, image forming method and process cartridge
    • 图像形成装置,图像形成方法和处理盒
    • US07892718B2
    • 2011-02-22
    • US11738149
    • 2007-04-20
    • Yasuaki IwamotoYohichiroh WatanabeYasutada Shitara
    • Yasuaki IwamotoYohichiroh WatanabeYasutada Shitara
    • G03G9/087
    • G03G9/08755G03G9/08775G03G9/08786G03G9/08791G03G15/2064G03G2215/0602G03G2215/2032
    • Provided are image forming apparatuses, image forming methods, and process cartridges using a toner that is excellent in low temperature fixing ability, hot offset resistance, and storage stability, and also generate less odor, and thus that can provide high quality images with superior fixing ability, far from tone change with time, and less likely to occur abnormal images such as density-drop and background smear. The image forming apparatuses comprise a latent electrostatic image bearing member, a charging unit, an exposing unit, a developing unit, a transfer unit, and a fixing unit, wherein the toner comprises a binder resin and a colorant, the binder resin comprises a polyester resin prepared by condensation polymerization between an alcohol component that contains an aliphatic polyvalent alcohol and a carboxylic acid component that contains (meth)acrylic acid-modified rosin.
    • 提供了使用具有优异的低温定影能力,耐热偏移性和储存稳定性的调色剂的图像形成装置,成像方法和处理盒,并且还产生较少的气味,因此可以提供具有优良定影的高质量图像 能力,远离音调随时间变化,并且不太可能发生异常图像,如密度下降和背景涂片。 图像形成装置包括静电潜像承载部件,充电单元,曝光单元,显影单元,转印单元和定影单元,其中调色剂包括粘合剂树脂和着色剂,粘合剂树脂包括聚酯 通过含有脂肪族多元醇的醇成分和含有(甲基)丙烯酸改性松香的羧酸成分之间的缩聚而制备的树脂。
    • 10. 发明申请
    • IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND PROCESS CARTRIDGE
    • 图像形成装置,图像形成方法和处理盒
    • US20070281237A1
    • 2007-12-06
    • US11755517
    • 2007-05-30
    • Yasuaki IWAMOTOYohichiroh WatanabeYasutada Shitara
    • Yasuaki IWAMOTOYohichiroh WatanabeYasutada Shitara
    • G03G15/02G03G15/06G03G15/16G03G21/00
    • G03G9/08755G03G9/08775G03G9/08795G03G9/08797G03G15/2025G03G2215/2032
    • To provide an image forming apparatus, image forming method and process cartridge, which are excellent in low-temperature fixation properties, storage stability, durability and filming resistance, can reduce generation of odor, and are capable of forming an extremely high quality image. The apparatus includes: a latent electrostatic image bearing member; a charging unit; an exposing unit; a developing unit; a transferring unit; and a fixing unit; wherein the toner comprises a binder resin and coloring agent, and the binder resin comprises a polyester-based resin (A) and polyester-based resin (B) having a melting point at least 10° C. higher than that of the polyester-based resin (A), and at least one of the polyester-based resins (A) and (B) is a resin derived from a (meth)acrylic acid modified rosin and includes a polyester unit obtained by condensation polymerization of an alcohol component and a carboxylic acid component containing a (meth)acrylic acid modified rosin.
    • 为了提供低温定影性,保存稳定性,耐久性和耐成膜性优异的图像形成装置,成像方法和处理盒,可以减少气味的产生,并且能够形成极高质量的图像。 该装置包括:静电潜像承载部件; 充电单元; 曝光单元; 一个发展单位; 转移单元; 和固定单元; 其中调色剂包括粘合剂树脂和着色剂,并且粘合剂树脂包括聚酯基树脂(A)和聚酯基树脂(B),其熔点比聚酯基树脂(A)高至少10℃ 树脂(A),所述聚酯类树脂(A)和(B)中的至少一种为衍生自(甲基)丙烯酸改性松香的树脂,包括通过醇成分和 羧酸成分含有(甲基)丙烯酸改性松香。