Black toner with defined loss tangent
    1.
    发明授权
    Black toner with defined loss tangent 失效
    黑色墨粉具有确定的损耗角正切

    公开(公告)号:US07022449B2

    公开(公告)日:2006-04-04

    申请号:US10629751

    申请日:2003-07-30

    IPC分类号: G03G9/08 G03G9/087

    摘要: To provide a black toner having excellent charging property and transferring property against a severe environmental change. The black toner includes toner particle containing at least a binder resin, carbon black and a releasing agent, wherein: the toner particles have a weight-average particle diameter of 3.5 to 8.0 μm; total amount of acid value and hydroxyl value of the toner is 30 to 75 mgKOH/g; average circularity of particles contained in the toner having circle-equivalent diameter of 2 μm or more is 0.915 to 0.960; loss tangent tan δ (103 to 104 Hz) of the toner is represented by the following expression: tan δ(103 to 104 Hz)≦0.0060 where the loss tangent tan δ is represented by ∈″/∈′ where ∈″ denotes dielectric loss factor and ∈′ denotes dielectric constant, and tan δ (103 to 104 Hz) denotes the loss tangent in a frequency range of 103 to 104 Hz; and a ratio of tan δ (105 Hz) to tan δ (5×104 Hz) is represented by the following expression: 1.05≦tan δ(105 Hz)/tan δ(5×104 Hz)≦1.40 where tan δ (105 Hz) denotes loss tangent at the frequency of 105 Hz and tan δ (5×104 Hz) denotes loss tangent at the frequency of 5×104 Hz.

    摘要翻译: 为了提供具有优异的充电性能和转印性能的黑色调色剂,以防恶劣的环境变化。 黑色调色剂包括至少含有粘合剂树脂,炭黑和脱模剂的调色剂颗粒,其中:调色剂颗粒的重均粒径为3.5-8.0μm; 调色剂的酸值和羟值的总量为30〜75mgKOH / g; 圆当量直径为2μm以上的调色剂中所含的颗粒的平均圆形度为0.915〜0.960, 调色剂的损耗角正切tanδ(10 3至10 4 Hz)由以下表达式表示:<?in-line-formula description =“In-Line Formulas “end =”lead“?>tanδ(10 <3> <10> 4Hz)<= 0.0060 <?in-line-formula description =”In-line Formulas“ end =“tail”?>其中损耗正切tanδ由∈“/∈”表示,其中∈“表示介电损耗因子,∈'表示介电常数,tanδ(10 <3> 至10 4Hz)表示在10 3至10 4Hz的频率范围内的损耗角正切; 并且tanδ(10Hz)与tanδ(5×10 4 Hz)的比率由以下表达式表示:<?in-line-formula description =“ 在线公式“end =”lead“?> 1.05 <= TAN delta(10Hz)/tanδ(5×10 4 Hz)<= 1.40 < -line-formula description =“In-line Formulas”end =“tail”?>其中,tanδ(10Hz)表示频率为10 5的损耗角正切, Hz和tanδ(5×10 4 Hz)表示频率为5×10 4 Hz的损耗角正切。

    Black toner with defined loss tangent
    2.
    发明申请
    Black toner with defined loss tangent 失效
    黑色墨粉具有确定的损耗角正切

    公开(公告)号:US20060014095A1

    公开(公告)日:2006-01-19

    申请号:US11225169

    申请日:2005-09-14

    IPC分类号: G03G9/087 G03G9/097

    摘要: To provide a black toner having excellent charging property and transferring property against a severe environmental change. The black toner includes toner particle containing at least a binder resin, carbon black and a releasing agent, wherein: the toner particles have a weight-average particle diameter of 3.5 to 8.0 μm; total amount of acid value and hydroxyl value of the toner is 30 to 75 mgKOH/g; average circularity of particles contained in the toner having circle-equivalent diameter of 2 μm or more is 0.915 to 0.960; loss tangent tan δ (103 to 104 Hz) of the toner is represented by the following expression: tan δ (103 to 104 Hz)≦0.0060 where the loss tangent tan δ is represented by ε″/ε′ where ε″ denotes dielectric loss factor and ε′ denotes dielectric constant, and tan δ (103 to 104 Hz) denotes the loss tangent in a frequency range of 103 to 104 Hz; and a ratio of tan δ (105 Hz) to tan δ (5×104 Hz) is represented by the following expression: 1.05≦tan δ (105 Hz)/tan δ (5×104 Hz)≦1.40 where tan δ (105 Hz) denotes loss tangent at the frequency of 105 Hz and tan δ (5×104 Hz) denotes loss tangent at the frequency of 5×104 Hz.

    摘要翻译: 为了提供具有优异的充电性能和转印性能的黑色调色剂,以防恶劣的环境变化。 黑色调色剂包括至少含有粘合剂树脂,炭黑和脱模剂的调色剂颗粒,其中:调色剂颗粒的重均粒径为3.5-8.0μm; 调色剂的酸值和羟值的总量为30〜75mgKOH / g; 圆当量直径为2μm以上的调色剂中所含的颗粒的平均圆形度为0.915〜0.960, 调色剂的损耗角正切tanδ(10 3至10 4 Hz)由以下表达式表示:<?in-line-formula description =“In-Line Formulas “end =”lead“?>tanδ(10 <3> <10> 4Hz)<= 0.0060 <?in-line-formula description =”In-line Formulas“ end =“tail”?>其中损耗正切tanδ由ε“/ epsilon表示,其中ε”表示介电损耗因子,ε“表示介电常数,tanδ(10 < 至10 4Hz)表示在10 3至10 4Hz的频率范围内的损耗角正切; 并且tanδ(10Hz)与tanδ(5×10 4 Hz)的比率由以下表达式表示:<?in-line-formula description =“ 在线公式“end =”lead“?> 1.05 <= TAN delta(10Hz)/tanδ(5×10 4 Hz)<= 1.40 < -line-formula description =“In-line Formulas”end =“tail”?>其中,tanδ(10Hz)表示频率为10 5的损耗角正切, Hz和tanδ(5×10 4 Hz)表示频率为5×10 4 Hz的损耗角正切。

    Black toner with defined loss tangent
    3.
    发明授权
    Black toner with defined loss tangent 失效
    黑色墨粉具有确定的损耗角正切

    公开(公告)号:US07300733B2

    公开(公告)日:2007-11-27

    申请号:US11225169

    申请日:2005-09-14

    IPC分类号: G03G9/087

    摘要: To provide a black toner having excellent charging property and transferring property against a severe environmental change. The black toner includes toner particle containing at least a binder resin, carbon black and a releasing agent, wherein: the toner particles have a weight-average particle diameter of 3.5 to 8.0 μm; total amount of acid value and hydroxyl value of the toner is 30 to 75 mgKOH/g; average circularity of particles contained in the toner having circle-equivalent diameter of 2 μm or more is 0.915 to 0.960; loss tangent tanδ (103 to 104 Hz) of the toner is represented by the following expression: tanδ (103 to 104 Hz)≦0.0060 where the loss tangent tanδ is represented by ε″/ε′ where ε″ denotes dielectric loss factor and ε′ denotes dielectric constant, and tanδ (103 to 104 Hz) denotes the loss tangent in a frequency range of 103 to 104 Hz; and a ratio of tanδ (105 Hz) to tanδ (5×104 Hz) is represented by the following expression: 1.05≦tanδ (105 Hz)/tanδ (5×104 Hz)≦1.40 where tanδ (105 Hz) denotes loss tangent at the frequency of 105 Hz and tanδ (5×104 Hz) denotes loss tangent at the frequency of 5×104 Hz.

    摘要翻译: 为了提供具有优异的充电性能和转印性能的黑色调色剂,以防恶劣的环境变化。 黑色调色剂包括至少含有粘合剂树脂,炭黑和脱模剂的调色剂颗粒,其中:调色剂颗粒的重均粒径为3.5-8.0μm; 调色剂的酸值和羟值的总量为30〜75mgKOH / g; 圆当量直径为2μm以上的调色剂中所含的颗粒的平均圆形度为0.915〜0.960, 调色剂的损耗正切塔兰塔(10 3至10 4 Hz)由以下表达式表示:<?in-line-formula description =“在线公式” end =“lead”?> tandelta(10 3至10 4 Hz)<= 0.0060 <?in-line-formula description =“In-line Formulas”end = “tail”?>其中损耗正切tandelta由ε“/ epsilon”表示,其中epsilon表示介电损耗因子,ε表示介电常数,tandelta(10 3〜10 > 4Hz)表示在10 3至10 4 Hz的频率范围内的损耗角正切; 并且tandelta(10Hz)与tandelta(5×10 4 Hz)的比率由以下表达式表示:<?in-line-formula description =“In- 线公式“end =”lead“?> 1.05 <= TANdelta(10Hz)/ tandelta(5×10 4 Hz)<= 1.40 < 描述=“在线公式”end =“tail”?>其中tandelta(10Hz)表示在10Hz频率下的损耗角正切和tandelta(5×10 5 4Hz)表示频率为5×10 4 Hz的损耗角正切。

    Toner and fixing method
    9.
    发明授权
    Toner and fixing method 有权
    调色剂和定影方法

    公开(公告)号:US06929894B2

    公开(公告)日:2005-08-16

    申请号:US10191549

    申请日:2002-07-10

    摘要: A toner is disclosed which is composed of toner particles containing at least a binder resin, a colorant and a wax, and an external additive. The wax has, in its DSC endothermic curve, a maximum endothermic peak at 55° C. to 80° C. within the temperature range from 30° C. to 160° C., the maximum endothermic peak having a half width of from 2° C. to 7° C., and the binder resin is composed chiefly of a polyester resin. The toner has a dynamic elastic modulus from 5×102 to 1×105 dN/m2 at 140° C., and its ratio to a dynamic elastic modulus at 170° C. is from 0.05 to 50, and the toner contains 10 to 20% by weight of THF-insoluble matter A of a binder resin component after 8 hours from the start of extraction and 1 to 10% by weight of THF-insoluble matter B of the binder resin component after 24 hours from the start of extraction, the ratio of A to B, B/A, being from 0.1 to 0.8. Also disclosed is a fixing method making use of this toner.

    摘要翻译: 公开了由至少含有粘合剂树脂,着色剂和蜡以及外部添加剂的调色剂颗粒构成的调色剂。 在DSC吸热曲线中,蜡在30℃至160℃的温度范围内在55℃至80℃下具有最大吸热峰,最大吸热峰的半值宽度为2 ℃至7℃,粘合剂树脂主要由聚酯树脂组成。 该调色剂在140℃下的动态弹性模量为5×10 2至1×10 5 dN / m 2以上,并且其与动态 170℃下的弹性模量为0.05〜50,调色剂含有10〜20重量%的从开始提取8小时后的粘结剂树脂成分的THF不溶性物质A和1〜10重量% 从开始提取24小时后的粘合剂树脂组分的THF不溶物B,A与B的比例B / A为0.1至0.8。 还公开了利用该调色剂的定影方法。