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    • 1. 发明授权
    • Dry type developer for electrophotography
    • 用于电子照相的干式显影剂
    • US4980258A
    • 1990-12-25
    • US436551
    • 1989-11-14
    • Mitsuo AokiNobuhiro NakayamaYasuo AsahinaHiroyuki FushimiKayo MakitaYasuaki Iwamoto
    • Mitsuo AokiNobuhiro NakayamaYasuo AsahinaHiroyuki FushimiKayo MakitaYasuaki Iwamoto
    • G03G9/09G03G9/097
    • G03G9/0975G03G9/0918G03G9/09741
    • The present invention relates to the positively chargeable black toner particles which comprise binder resins, carbonblack as a main colorant, quaternary anmonium salt of the following formula (I) as a charge control agent and .beta.-form Cu-phthalocyanine as a stabilizing agent for chargeability of toner particles without being affected by the change of environmental conditions. ##STR1## Wherein R.sub.1 is C.sub.1 -C.sub.8 alkyl or benzyl, R.sub.2 and R.sub.3 are each C.sub.1 -C.sub.18 alkyl, R is C.sub.1 -C.sub.118 alkyl or benzyl, X is hydroxy or amino, and Y is hydoroxy or hydrogen; (c) .beta.-form Cu-phthalocyanine; and (d) carbonblack.The present invention further relates to the two component dry-type developer composed by the improved above said positively chargeable toner particles and the carrier particles coated with silicone polylmers which have the strong durability without being changed to a supent carrier particles for a use of long time period.
    • 本发明涉及包含粘合剂树脂,炭黑作为主要着色剂的正电荷黑色调色剂颗粒,作为电荷控制剂的下式(I)的季铵盐和作为带电性的稳定剂的β-型Cu-酞菁 的调色剂颗粒,而不受环境条件的变化的影响。 (I)其中R1是C1-C8烷基或苄基,R2和R3各自是C1-C18烷基,R是C1-C118烷基或苄基,X是羟基或氨基,Y是羟基或氢; (c)β-型Cu-酞菁; 和(d)炭黑。 本发明还涉及由改进的上述可充正电的调色剂颗粒和涂覆有硅氧烷聚合物的载体颗粒组成的双组分干式显影剂,其具有强的耐久性而不会改变为长时间使用的载体颗粒 期。
    • 2. 发明授权
    • Dry type toner for electrophotography
    • 用于电子照相的干式调色剂
    • US5061588A
    • 1991-10-29
    • US338599
    • 1989-04-14
    • Hiroyuki FushimiNobuhiro NakayamaYasuo AsahinaMitsuo AokiKayo Makita
    • Hiroyuki FushimiNobuhiro NakayamaYasuo AsahinaMitsuo AokiKayo Makita
    • G03G9/087
    • G03G9/08753Y10S430/105
    • A dry type toner for electrophotography is disclosed which comprises as the main components (a) a coloring agent; and (b) a polyol resin serving as a binder agent in an effective amount, the polyol resin being prepared by subjecting a bisphenol-type epoxy resin containing epoxy groups, which may contain secondary hydroxyl groups, to reaction steps (1), (2) and (3), or steps (2) and (3), in any sequential combination, until substantially no epoxy groups remain in the polyol resin, wherein the reaction step (1) comprises a step of causing the epoxy groups in the bisphenol-type epoxy resin to react with a primary amine; the reaction step (2) comprising a step of causing the epoxy groups to react with a compound containing one active hydrogen capable of reacting with the epoxy groups; and the reaction step (3) comprising a step of esterifying at least part of the secondary hydroxyl groups or hydroxyl groups produced in the bisphenol-type epoxy resin by reaction step (1) and/or reaction step (2) by use of an esterifying agent.
    • 公开了用于电子照相的干式调色剂,其包含作为主要组分(a)着色剂; 和(b)作为有效量的粘合剂的多元醇树脂,所述多元醇树脂通过将含有可以含有仲羟基的环氧基的双酚型环氧树脂进行反应步骤(1),(2) )和(3)或步骤(2)和(3),以任何顺序的组合,直到基本上没有环氧基保留在多元醇树脂中,其中反应步骤(1)包括使双酚 型环氧树脂与伯胺反应; 反应步骤(2)包括使环氧基与含有能够与环氧基反应的一个活性氢的化合物反应的步骤; 反应步骤(3)包括通过反应步骤(1)和/或反应步骤(2)通过使用酯化反应步骤(1)和/或反应步骤(2)酯化在双酚型环氧树脂中产生的至少一部分仲羟基或羟基的步骤 代理商
    • 5. 发明授权
    • Image forming method and dry toner therefor
    • 成像方法及干粉
    • US06168894A
    • 2001-01-02
    • US08710255
    • 1996-09-13
    • Mitsuo AokiHachiro TosakaHiroyuki FushimiMasanori SuzukiAkihiro Kotsugai
    • Mitsuo AokiHachiro TosakaHiroyuki FushimiMasanori SuzukiAkihiro Kotsugai
    • G03G1320
    • G03G13/20G03G9/0825G03G9/08755G03G9/08775
    • An image forming method including a new toner fixing method and toner therefor, wherein the method includes two rollers in which a toner image on an image supporting material is fixed by heating at a nipped section of the rollers, wherein one of the rollers which is a fixing roller contacting the toner image includes a metal cylinder having a thickness of not more than 1.0 mm, and the fixing pressure of the two rollers is not more than 1.4×105 Pa, and wherein the toner contains resins including two polyester resins, (A) and (B), and the polyester resin (B) includes discrete domains of the polyester resin (A) which has higher glass transition Tg and higher molecular weight than those of the polyester resin (B) and includes a component insoluble in tetrahydrofuran, and wherein the developed image can be fixed at relative low temperature and in wide temperature range, and the fixed image has excellent image quality and preserving property.
    • 一种包括新的调色剂定影方法及其调色剂的图像形成方法,其中该方法包括两个辊,其中图像支持材料上的调色剂图像通过在辊的夹持部分处加热而固定,其中辊之一为 与调色剂图像接触的定影辊包括厚度不大于1.0mm的金属圆筒,并且两个辊的定影压力不大于1.4×10 5 Pa,并且其中调色剂含有包含两种聚酯树脂的树脂,(A) 和(B),聚酯树脂(B)包括与聚酯树脂(B)相比具有更高的玻璃化转变温度和高分子量的聚酯树脂(A)的离散区域,并且包括不溶于四氢呋喃的组分, 其中显影图像可以在相对低的温度和宽的温度范围内固定,并且固定的图像具有优异的图像质量和保存性能。
    • 10. 发明授权
    • Image forming method, image forming apparatus, and process cartridge
    • 图像形成方法,图像形成装置和处理盒
    • US08741529B2
    • 2014-06-03
    • US13419843
    • 2012-03-14
    • Mitsuo AokiHisashi NakajimaMasashi NagayamaSaori Yamada
    • Mitsuo AokiHisashi NakajimaMasashi NagayamaSaori Yamada
    • G03G13/08G03G13/20
    • G03G15/0189G03G15/161G03G15/6585
    • An image forming method including forming an electrostatic latent image on an image bearing member; developing the electrostatic latent image using a color toner and a transparent toner to form a color toner image and a transparent toner image thereon; transferring the color toner image and the transparent toner image to a recording material; and fixing the color toner image and the transparent toner image on the recording material. The color toner includes a polyester resin and a colorant, and the loss tangent of the color toner has a maximum peak at a temperature of from 80° C. to 160° C., and is not greater than 3 at the maximum peak. The transparent toner includes a crystalline polyester resin, and the loss tangent of the transparent toner has a maximum peak at a temperature of from 80° C. to 160° C., and is not less than 3 at the maximum peak.
    • 一种图像形成方法,包括在图像承载部件上形成静电潜像; 使用彩色调色剂和透明调色剂显影静电潜像以在其上形成彩色调色剂图像和透明调色剂图像; 将彩色调色剂图像和透明调色剂图像转印到记录材料上; 并将彩色调色剂图像和透明调色剂图像固定在记录材料上。 彩色调色剂包括聚酯树脂和着色剂,并且彩色调色剂的损耗角正切在80℃至160℃的温度下具有最大峰值,并且在最大峰值处不大于3。 透明调色剂包括结晶聚酯树脂,并且透明调色剂的损耗角正切在80℃至160℃的温度下具有最大峰值,并且在最大峰值时不小于3。