Toner for developing electrostatic images, detachable apparatus, image
forming apparatus and facsimile apparatus
    11.
    发明授权
    Toner for developing electrostatic images, detachable apparatus, image forming apparatus and facsimile apparatus 失效
    用于显影静电图像的调色剂,可拆卸装置,图像形成装置和传真装置

    公开(公告)号:US5422707A

    公开(公告)日:1995-06-06

    申请号:US304823

    申请日:1994-09-13

    摘要: A toner for developing an electrostatic image, comprises a binder resin and a colorant. The toner has a glass transition temperature (Tg) of 65.degree. C. or lower. The binder resin comprises a styrene-acrylic copolymer formed from at least a styrenic monomer and a mixture of two or more acrylic monomers. The binder resin contains 10% by weight or more of THF insolubles. The amount of the styrenic monomer remaining in the toner is 0.005 part or less by weight based on 100 parts by weight of the binder resin component in the toner (50 ppm), and the amount of the acrylic monomers remaining in said toner is 0.001 part by weight based on 100 parts by weight or less of the binder resin component in the toner (10 ppm). At least one component of the mixture of acrylic monomers has a Q-value of 0.5 to less than 1.0 and the other has a Q-value of 0.3 to less than 0.5.This toner is excellent in the anti-off-set property to a fixing roller surface, good in fixability, giving high image density and little odor.

    摘要翻译: 用于显影静电图像的调色剂包括粘合剂树脂和着色剂。 调色剂的玻璃化转变温度(Tg)为65℃以下。 粘合剂树脂包括由至少苯乙烯单体和两种或更多种丙烯酸单体的混合物形成的苯乙烯 - 丙烯酸共聚物。 粘合剂树脂含有10重量%以上的THF不溶物。 调色剂中剩余的苯乙烯类单体的量相对于调色剂中的粘合剂树脂成分100重量份(50ppm)为0.005重量份,残留在所述调色剂中的丙烯酸类单体的量为0.001份 (10ppm)中的100重量份以下的粘合剂树脂成分。 丙烯酸类单体的混合物的至少一种成分的Q值为0.5〜小于1.0,另外Q值为0.3〜小于0.5。 该调色剂在定影辊表面的防脱离性方面优异,定影性良好,图像密度高,气味少。

    Toner for developing electrostatic images
    12.
    发明授权
    Toner for developing electrostatic images 失效
    用于开发静电图像的调色剂

    公开(公告)号:US5217836A

    公开(公告)日:1993-06-08

    申请号:US610934

    申请日:1990-11-09

    IPC分类号: G03G9/087

    摘要: A toner for developing an electrostatic image, comprises a binder resin and a colorant. The toner has a glass transition temperature (Tg) of 65.degree. C. or lower. The binder resin comprises a styrene-acrylic copolymer formed from at least a styrenic monomer and a mixture of two or more acrylic monomers. The binder resin contains 10% by weight or more of THF insolubles. The amount of the styrenic monomer remaining in the toner is 0.005 part or less by weight based on 100 parts by weight of the binder resin component in the toner (50 ppm), and the amount of the acrylic monomers remaining in said toner is 0.001 part by weight based on 100 parts by weight or less of the binder resin component in the toner (10 ppm). At least one component of the mixture of acrylic monomers has a Q-value of 0.5 to less than 1.0 and the other has a Q-value of 0.3 to less than 0.5.This toner is excellent in the anti-off-set property to a fixing roller surface, good in fixability, giving high image density and little odor.

    Toner having crosslinkages and method of fixing same
    13.
    发明授权
    Toner having crosslinkages and method of fixing same 失效
    具有交货的墨粉和固定方法

    公开(公告)号:US5180649A

    公开(公告)日:1993-01-19

    申请号:US611096

    申请日:1990-11-09

    IPC分类号: G03G9/08 G03G9/087 G03G9/097

    摘要: A toner for developing electrostatic images is constituted from a binder resin, and a metal salt or a metal complex. Through the various interaction between the components, the toner is provided with unique viscoelastic properties including: a dynamic modulus G'.sub.120-200 at 120.degree.-200.degree. C. of 2.times.10.sup.3 or higher to below 5.times.10.sup.5 [dyne/cm.sup.2 ] as measured in the frequency range of 1.times.10.sup.-2 -1 (Hz); a loss modulus G".sub.120-200 at 120.degree.-200.degree. C. of 2.times.10.sup.3 or higher to below 5.times.10.sup.5 [dyne/cm.sup.2 ] as measured in the frequency range of 1.times.10.sup.-2 -1 (Hz); a dynamic modulus G'.sub.200 at 200.degree. C. and a frequency f satisfying an approximated linear relationship according to the least squares method of: logG'.sub.200 =a.multidot.log.multidot.f+log b, wherein a denotes a positive number of 0.25 or smaller and b denotes a constant; and a ratio (G'.sub.200)/(G'.sub.120) of below 0.25 wherein (G'.sub.200) denotes a dynamic modulus at 200.degree. C. and (G'.sub.120) denotes a dynamic modulus at 120.degree. C. respectively at a frequency of 1 (Hz).

    Toner for developing electrostatic image and process for production
thereof
    14.
    发明授权
    Toner for developing electrostatic image and process for production thereof 失效
    用于显影静电图像的调色剂及其生产方法

    公开(公告)号:US5338638A

    公开(公告)日:1994-08-16

    申请号:US797992

    申请日:1991-11-26

    IPC分类号: G03G9/087

    摘要: A toner for developing an electrostatic image is provided as a pulverized mixture including a binder resin and a colorant. The binder resin is characterized by a molecular weight distribution on a GPC chromatogram of its tetrahydrofuran (THF)-soluble resin content including at least 15% and below 35% of a resin component in a molecular weight region of at most 5000 and at least 3 wt. % of a resin component in a molecular weight region of at least 5.times.10.sup.6 and showing a main peak in a molecular weight region of 5000 to 10.sup.5. The binder resin also has an acid value of 2-100 mg KOH/g. The THF-soluble resin component in the molecular weight region of at least 5.times.10.sup.6 is enriched during a melt-kneading step during the toner production.

    摘要翻译: 提供用于显影静电图像的调色剂作为包括粘合剂树脂和着色剂的粉碎混合物。 粘合剂树脂的特征在于其四氢呋喃(THF)可溶性树脂含量的GPC色谱图中的分子量分布,其包含至少15%且低于35%的分子量区域中的树脂组分的至多5000和至少3 重量 %的分子量区域中的树脂组分为至少5×10 6,并且在5000至105的分子量范围内显示出主峰。粘合剂树脂的酸值为2-100mg KOH / g。 在调色剂生产过程中,在熔融捏合步骤期间富含至少5×10 6分子量的THF可溶性树脂组分。

    Toner and image forming method
    16.
    发明授权
    Toner and image forming method 有权
    调色剂和成像方法

    公开(公告)号:US06214509B1

    公开(公告)日:2001-04-10

    申请号:US09310949

    申请日:1999-05-13

    IPC分类号: G03G9097

    摘要: The objects of the present invention are to provide a toner excellent in transferability, little remaining on the photosensitive member and causing no defective image in roll-aided transfer (or at least such a phenomenon is well-controlled), and also to provide an image forming method using the same toner. The above objects are achieved when the toner contains a binder resin and colorant, inorganic fine particles, and a hydrotalcite compound shown by the formula: M1y12+M2y22+ . . . Mjyj2+L1x13+L2x23+ . . . Lkxk3+(OH)2.(X/n)An−.mH2O  (1) wherein 0

    摘要翻译: 本发明的目的是提供一种转印性优异,在光敏元件上几乎没有残留的调色剂,并且不会在辊辅助转印中产生不良图像(或至少这种现象被良好控制),并且还提供图像 当调色剂含有粘合剂树脂和着色剂,无机细颗粒和下式所示的水滑石化合物时,实现了上述目的:其中0 <[X =(x1 + x2 + ... xk) ] <= 0.5; Y =(y1 + y2 + ... + yj)= 1-X; j和k分别为2以上的整数, M13 +,M23 +,。 。 。 和Mj2 +是彼此不同的二价金属离子; L13 +,L23 +。 。 。 并且Lk3 +是彼此不同的三价金属离子; An-是n价阴离子; 并且m> = 0),并且当使用上述调色剂的图像形成方法包括对图像载体进行充电的充电步骤; 在所述带电图像载体上形成静电潜像的潜像形成步骤; 显影步骤,用由调色剂载体承载的调色剂显影静电潜像,以在图像载体上形成调色剂图像; 转印步骤,其通过或不通过中间介质将图像载体上的调色剂图像转印到介质上; 以及将调色剂图像固定在介质上的固定步骤。

    Toner and image forming method
    19.
    发明授权
    Toner and image forming method 失效
    调色剂和成像方法

    公开(公告)号:US06610454B2

    公开(公告)日:2003-08-26

    申请号:US09146356

    申请日:1998-09-03

    IPC分类号: G03G9087

    CPC分类号: G03G9/08757 G03G9/08795

    摘要: A toner is comprised of a binder resin, a colorant and a wax. The binder resin has a polycarbonate resin in an amount of from 0.1% by weight to 50.0% by weight and a resin other than the polycarbonate resin in an amount of from 50.0% by weight to 99.9% by weight, based on the weight of the binder resin. In molecular weight distribution as measured by gel permeation chromatography of tetrahydrofuran-soluble matter, the toner contains in an amount of 15.0% by weight or less based on the weight of the toner a component which has in its structure a repeating unit of the polycarbonate resin and is contained in components having a molecular weight of 1,000 or less.

    摘要翻译: 调色剂由粘合剂树脂,着色剂和蜡组成。 粘合剂树脂的聚碳酸酯树脂的量为0.1重量%〜50.0重量%,除聚碳酸酯树脂以外的树脂的重量比为50.0重量%〜99.9重量% 粘合剂树脂。 在通过四氢呋喃可溶物质的凝胶渗透色谱法测量的分子量分布中,调色剂的含量相对于调色剂的重量为15.0重量%,其组分为聚碳酸酯树脂的重复单元 并且含有分子量为1,000以下的成分。

    Magnetic toner and image-forming method making use of the same
    20.
    发明授权
    Magnetic toner and image-forming method making use of the same 有权
    使用磁性调色剂和成像方法

    公开(公告)号:US06596452B2

    公开(公告)日:2003-07-22

    申请号:US09788399

    申请日:2001-02-21

    IPC分类号: G03G9083

    摘要: A magnetic toner comprising magnetic toner particles containing at least a binder resin, a magnetic material containing a magnetic iron oxide, and a release agent. The magnetic toner has a weight-average particle diameter of from 3 &mgr;m to 10 &mgr;m, a magnetization intensity (saturation magnetization) of from 10 Am2/kg to 50 Am2/kg (emu/g) under application of a magnetic field of 79.6 kA/m (1,000 oersteds), an average circularity of 0.970 or more, a ratio of weight-average particle diameter to number-average particle diameter, of 1.40 or less, iron and an iron compound which stand liberated from the magnetic toner particles at a liberation percentage of from 0.05% to 3.00%, and a resin component having a tetrahydrofuran-insoluble matter in an amount of from 3% by weight to 60% by weight. Also disclosed is an image-forming method making use of the magnetic toner.

    摘要翻译: 包含至少含有粘合剂树脂的磁性调色剂颗粒,含有磁性氧化铁的磁性材料和脱模剂的磁性调色剂。 磁性调色剂的重均粒径为3μm〜10μm,在施加79.6kA的磁场下,磁化强度(饱和磁化强度)为10Am 2 / kg〜50Am 2 / kg(emu / g) / m(1,000奥斯特),平均圆形度为0.970以上,重均粒径与数均粒径的比值为1.40以下,铁和铁化合物在磁性调色剂颗粒中释放出来 释放百分比为0.05%〜3.00%,以及四氢呋喃不溶物质量为3重量%〜60重量%的树脂成分。 还公开了利用磁性调色剂的图像形成方法。