公开(公告)号：US06187490B1

公开(公告)日：2001-02-13

申请号：US09526473

申请日：2000-03-15

申请人： Masaaki Taya ,  Takaaki Kohtaki ,  Yasuhiro Ichikawa

发明人： Masaaki Taya ,  Takaaki Kohtaki ,  Yasuhiro Ichikawa

IPC分类号： G03G1301

CPC分类号： G03G9/10 ,  G03G9/107

摘要： A two-component developer suitable for electrophotography is formed of a toner and a resin-coated carrier. The resin-coated carrier is formed of carrier core particles and 0.01-2.0 wt. % based on the carrier core particles of a resin coating layer coating the carrier core particles. The resin-coated carrier has an average particle size of 25-55 &mgr;m and the carrier core particles comprise a ferrite component represented by formula (I) below: (Fe2O3)a(MnO)b(MgO)c(A)d  (I), wherein A represents a mixture of SrO, CaO and Al2O3, and a, b, c and d are numbers representing mol fractions of associated components and satisfying: 0.4

摘要翻译： 适用于电子照相术的双组分显影剂由调色剂和树脂涂布载体形成。 树脂涂层载体由载体芯颗粒和0.01-2.0重量％ 基于载体芯颗粒的载体芯颗粒涂覆载体芯颗粒。 树脂涂布载体的平均粒径为25-55μm，载体芯粒子包含由下式（I）表示的铁氧体组分：其中A表示SrO，CaO和Al 2 O 3的混合物，a，b，c d表示相关成分的摩尔分数，满足：0.4

公开(公告)号：US5578408A

公开(公告)日：1996-11-26

申请号：US365735

申请日：1994-12-29

申请人： Takaaki Kohtaki ,  Masaaki Taya ,  Makoto Unno ,  Tadashi Doujo

发明人： Takaaki Kohtaki ,  Masaaki Taya ,  Makoto Unno ,  Tadashi Doujo

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/097 ,  G03G9/083

CPC分类号： G03G9/08782 ,  G03G9/0821 ,  G03G9/08755 ,  G03G9/08791 ,  G03G9/09733 ,  G03G9/09775

摘要： A toner for developing an electrostatic image is constituted by a binder resin and a colorant. The toner is characterized by a percentage change .sub.G' of at most 50% as calculated by the following formula (1):.gamma..sub.G' =(1-G'.sub.50% /G'.sub.1%).times.100 (1),wherein .gamma..sub.G' denotes a percentage change of storage modulus, G'.sub.50% denotes a storage modulus at 50% strain at 150.degree. C., and G'.sub.1% denotes a storage modulus at 1% strain at 150.degree. C.; a percentage change .gamma..sub.G" of at most 50% as calculated by the following formula (2):.gamma..sub.G" =(1-G".sub.50% /G".sub.1%).times.100 (2),wherein .gamma..sub.G" denotes a percentage change of loss modulus, G".sub.50% denotes a loss modulus at 50% strain, and G".sub.1% denotes a loss modulus at 1% strain; and a storage modulus G' of 3.times.10.sup.3 -7.times.10.sup.4 dyn/cm.sup.2 in a range of 1-50% strain at 150.degree. C. The toner is characterized by applicability to a wide variety of image forming apparatus, especially those having remarkably different fixing speeds.

摘要翻译： 用于显影静电图像的调色剂由粘合剂树脂和着色剂构成。 调色剂的特征在于通过下式（1）计算的百分比变化G'为至多50％：γG'=（1-G'50％/ G'1％）×100（1），其中γG 表示储能模量的百分比变化，G'50％表示在150℃下50％应变下的储能模量，G'1％表示在150℃下1％应变下的储能模量。 通过下式（2）计算的百分比变化伽玛G“为50％以下：γG”=（1-G''50％/ G'1％）×100（2），其中γG “表示损耗模量的百分比变化，G''50％表示50％应变下的损耗模量，G'1％表示1％应变下的损耗模量; 以及在150℃下1-50％应变范围内的3×103-3×104dyn / cm2的储能模量G'。调色剂的特征在于适用于各种各样的图像形成装置，特别是具有非常不同定影速度的图像形成装置。

公开(公告)号：US5439770A

公开(公告)日：1995-08-08

申请号：US228269

申请日：1994-04-15

申请人： Masaaki Taya ,  Takaaki Kohtaki ,  Makoto Unno ,  Tadashi Doujo

发明人： Masaaki Taya ,  Takaaki Kohtaki ,  Makoto Unno ,  Tadashi Doujo

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

CPC分类号： G03G9/08755 ,  G03G9/0819 ,  G03G9/091

摘要： A toner for developing an electrostatic image is constituted by at least a binder resin and a charge control agent. The binder resin has an acid value of 5-50. The charge control agent comprises an iron complex represented by the following formula: ##STR1## wherein X.sub.1 and X.sub.2 independently denote hydrogen atom, lower alkyl group, lower alkoxy group, nitro group or halogen atom; m and m' denote an integer of 1-3; R.sub.1 and R.sub.3 independently denote hydrogen atom, C.sub.1-18 alkyl or alkenyl, sufonamide, mesyl, sulfonic acid group, carboxy ester group, hydroxy, C.sub.1-18 alkoxy, acetylamino, benzoylamino or halogen atom; n and n' denote an integer of 1-3; R.sub.2 and R.sub.4 denote hydrogen atom or nitro group; and A.sup.+ denotes hydrogen ion, sodium ion, potassium ion or ammonium ion. The toner has a weight-average particle size (D.sub.4) of 4-9 .mu.m and including toner particles having a particle size of 5 .mu.m or smaller at 3-90% by number, toner particles having a particle size of 6.35-10.08 .mu.m at 1-80% by number and toner particles having a particle size of 12.7 .mu.m or larger at a percentage by volume of at most 2.0%, wherein the toner particles having a particle size of 5.0 .mu.m or smaller are contained at N % by number and at V % by volume satisfying a relationship:N/V=-0.05N+k,wherein k is a positive number in the range of 3.0-7.5.

摘要翻译： 用于显影静电图像的调色剂由至少粘合剂树脂和电荷控制剂构成。 粘合剂树脂的酸值为5-50。 电荷控制剂包括由下式表示的铁络合物：氢原子，低级烷基，低级烷氧基，硝基或卤素原子; m和m'表示1-3的整数; R1和R3独立地表示氢原子，C1-18烷基或烯基，磺酰胺，甲磺酰基，磺酸基，羧基酯基，羟基，C1-18烷氧基，乙酰氨基，苯甲酰氨基或卤素原子; n和n'表示1-3的整数; R2和R4表示氢原子或硝基; A +表示氢离子，钠离子，钾离子或铵离子。 调色剂的重均粒径（D4）为4-9μm，包括粒径为5μm以下的调色剂颗粒为3-90％，调色剂颗粒的粒径为6.35-10.08 以数量为1-80％的粒径和粒径为12.7μm或更大的调色剂颗粒，其体积百分比至多为2.0％，其中粒径为5.0μm或更小的调色剂颗粒包含在 N％数，体积V％满足关系：N / V = -0.05N + k，其中k为3.0-7.5范围内的正数。

公开(公告)号：US5547796A

公开(公告)日：1996-08-20

申请号：US276509

申请日：1994-07-18

申请人： Takaaki Kohtaki ,  Masaaki Taya ,  Masami Fujimoto

发明人： Takaaki Kohtaki ,  Masaaki Taya ,  Masami Fujimoto

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/097 ,  G03G9/083 ,  G03G9/00 ,  G03G9/10 ,  G03G9/107

CPC分类号： G03G9/0819 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09708 ,  Y10S430/104

摘要： A developer for developing an electrostatic image is constituted by an insulating magnetic toner, inorganic fine powder and a flowability-improving agent having a BET specific surface area of at least 30 m.sup.2 /g. The insulating magnetic toner has a weight-average particle size (t-D.sub.4) of 4-14 .mu.m, a number-average particle size (t-D.sub.1) of 1-10 .mu.m, and a ratio (t-D.sub.4)/(t-D.sub.1) of 1.01-2. The inorganic fine powder has a weight-average particle size (m-D.sub.4) of 0.6-5 .mu.m, a number-average particle size (m-D.sub.1) of 0.5-4 .mu.m, and a ratio (m-D.sub.4)/(m-D.sub.1) which is in the range of 1.0-2.4 and is equal to or larger than the ratio (t-D.sub.4)/(t-D.sub.1). The inorganic fine powder is contained in an amount which is 2-8 times that of the flowability-improving agent by weight. The developer is able to retain stable developing performances by effecting suppressing preferential consumption of a particular particle size fraction in a long term of successive copying.

摘要翻译： 用于显影静电图像的显影剂由绝缘磁性调色剂，无机细粉末和BET比表面积至少为30m 2 / g的流动性改进剂构成。 绝缘磁性调色剂的重均粒径（t-D4）为4〜14μm，数均粒径（t-D1）为1-10μm，比例（t-D4）/ （t-D1）为1.01-2。 无机细粉末的重均粒径（m-D4）为0.6〜5μm，数均粒径（m-D1）为0.5〜4μm，比率（m-D4）/ （m-D1）在1.0-2.4的范围内，并且等于或大于比率（t-D4）/（t-D1）。 无机细粉末的含量为流动性改进剂重量的2-8倍。 显影剂能够通过在长时间连续复制中抑制特定粒度分数的优先消耗来保持稳定的显影性能。

公开(公告)号：US5483327A

公开(公告)日：1996-01-09

申请号：US398791

申请日：1995-03-06

申请人： Masaaki Taya ,  Takaaki Kohtaki ,  Makoto Unno ,  Tadashi Doujo

发明人： Masaaki Taya ,  Takaaki Kohtaki ,  Makoto Unno ,  Tadashi Doujo

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/09 ,  G03G15/06

CPC分类号： G03G9/08755 ,  G03G9/0819 ,  G03G9/091

摘要： An image forming apparatus and a process cartridge includes a toner for developing an electrostatic image that is constituted by at least a binder resin and a charge control agent. The binder resin has an acid value of 5-50. The charge control agent includes an iron complex represented by the following formula: ##STR1## wherein X.sub.1 and X.sub.2 independently denote hydrogen atom, lower alkyl group, lower alkoxy group, nitro group or halogen atom; m and m' denote an integer of 1-3; R.sub.1 and R.sub.3 independently denote hydrogen atom, C.sub.1-18 alkyl or alkenyl, sufonamide, mesyl, sulfonic acid group, carboxy ester group, hydroxy, C.sub.1-18 alkoxy, acetylamino, benzoylamino or halogen atom; n and n' denote an integer of 1-3; R.sub.2 and R.sub.4 denote hydrogen atom or nitro group; and A.sup.+ denotes hydrogen ion, sodium ion, potassium ion or ammonium ion. The toner has a weight-average particle size (D.sub.4) of 4-9 .mu.m and including toner particles having a particle size of 5 .mu.m or smaller at 3-90% by number, toner particles having a particle size of 6.35-10.08 .mu.m at 1-80% by number and toner particles having a particle size of 12.7 .mu.m or larger at a percentage by volume of at most 2.0%, wherein the toner particles having a particle size of 5.0 .mu.m or smaller are contained at N % by number and at V % by volume satisfying a relationship:N/V=0.05N+k,wherein k is a positive number in the range of 3.0-7.5.

摘要翻译： 图像形成装置和处理盒包括用于显影由至少粘合剂树脂和电荷控制剂构成的静电图像的调色剂。 粘合剂树脂的酸值为5-50。 电荷控制剂包括由下式表示的铁络合物：其中X1和X2独立地表示氢原子，低级烷基，低级烷氧基，硝基或卤原子; m和m'表示1-3的整数; R1和R3独立地表示氢原子，C1-18烷基或烯基，磺酰胺，甲磺酰基，磺酸基，羧基酯基，羟基，C1-18烷氧基，乙酰氨基，苯甲酰氨基或卤素原子; n和n'表示1-3的整数; R2和R4表示氢原子或硝基; A +表示氢离子，钠离子，钾离子或铵离子。 调色剂的重均粒径（D4）为4-9μm，包括粒径为5μm以下的调色剂颗粒为3-90％，调色剂颗粒的粒径为6.35-10.08 以数量为1-80％的粒径和粒径为12.7μm或更大的调色剂颗粒，其体积百分比至多为2.0％，其中粒径为5.0μm或更小的调色剂颗粒包含在 N％数，体积V％满足关系：N / V = 0.05N + k，其中k为3.0-7.5范围内的正数。

公开(公告)号：US07022449B2

公开(公告)日：2006-04-04

申请号：US10629751

申请日：2003-07-30

申请人： Nobuyoshi Sugahara ,  Takaaki Kohtaki ,  Yasuhiro Ichikawa ,  Tetsuya Ida ,  Kazuhiko Hayami ,  Nozomu Komatsu

发明人： Nobuyoshi Sugahara ,  Takaaki Kohtaki ,  Yasuhiro Ichikawa ,  Tetsuya Ida ,  Kazuhiko Hayami ,  Nozomu Komatsu

IPC分类号： G03G9/08 ,  G03G9/087

CPC分类号： G03G9/08755 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0823 ,  G03G9/0827 ,  G03G9/08706 ,  G03G9/08708 ,  G03G9/08713 ,  G03G9/08715 ,  G03G9/08717 ,  G03G9/0872 ,  G03G9/08722 ,  G03G9/08724 ,  G03G9/08726 ,  G03G9/08728 ,  G03G9/08731 ,  G03G9/08733 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/0904 ,  G03G9/09783

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。

公开(公告)号：US20060014095A1

公开(公告)日：2006-01-19

申请号：US11225169

申请日：2005-09-14

申请人： Nobuyoshi Sugahara ,  Takaaki Kohtaki ,  Yasuhiro Ichikawa ,  Tetsuya Ida ,  Kazuhiko Hayami ,  Nozomu Komatsu

发明人： Nobuyoshi Sugahara ,  Takaaki Kohtaki ,  Yasuhiro Ichikawa ,  Tetsuya Ida ,  Kazuhiko Hayami ,  Nozomu Komatsu

IPC分类号： G03G9/087 ,  G03G9/097

CPC分类号： G03G9/08755 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0823 ,  G03G9/0827 ,  G03G9/08706 ,  G03G9/08708 ,  G03G9/08713 ,  G03G9/08715 ,  G03G9/08717 ,  G03G9/0872 ,  G03G9/08722 ,  G03G9/08724 ,  G03G9/08726 ,  G03G9/08728 ,  G03G9/08731 ,  G03G9/08733 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/0904 ,  G03G9/09783

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。

公开(公告)号：US07300733B2

公开(公告)日：2007-11-27

申请号：US11225169

申请日：2005-09-14

申请人： Nobuyoshi Sugahara ,  Takaaki Kohtaki ,  Yasuhiro Ichikawa ,  Tetsuya Ida ,  Kazuhiko Hayami ,  Nozomu Komatsu

发明人： Nobuyoshi Sugahara ,  Takaaki Kohtaki ,  Yasuhiro Ichikawa ,  Tetsuya Ida ,  Kazuhiko Hayami ,  Nozomu Komatsu

IPC分类号： G03G9/087

CPC分类号： G03G9/08755 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0823 ,  G03G9/0827 ,  G03G9/08706 ,  G03G9/08708 ,  G03G9/08713 ,  G03G9/08715 ,  G03G9/08717 ,  G03G9/0872 ,  G03G9/08722 ,  G03G9/08724 ,  G03G9/08726 ,  G03G9/08728 ,  G03G9/08731 ,  G03G9/08733 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/0904 ,  G03G9/09783

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。

公开(公告)号：US06623901B1

公开(公告)日：2003-09-23

申请号：US08992427

申请日：1997-12-18

申请人： Takaaki Kohtaki ,  Makoto Unno ,  Yushi Mikuriya ,  Tadashi Doujo

发明人： Takaaki Kohtaki ,  Makoto Unno ,  Yushi Mikuriya ,  Tadashi Doujo

IPC分类号： G03G9083

CPC分类号： G03G9/08795 ,  G03G9/08755 ,  G03G9/09733

摘要： A toner for developing an electrostatic image is constituted by a binder resin and a long-chain compound. The binder resin is a polyester resin or vinyl resin respectively having an acid value of preferably 25-70 mgKOH/g. The long-chain compound is a long-chain alkyl alcohol having an OH value of 10-120 mgKOH/g or a long-chain alkyl carboxylic acid having an acid value of 5-120 mgKOH/g and is contained so as to satisfy a condition of the following formula (1) or formula (2): Formula (1) acid value of binder resin +OH value of long-chain alkyl alcohol >(¼)×OH value of binder resin, or Formula (2) acid value of binder resin +acid value of long-chain alkyl carboxylic acid >(¼)×OH value of binder resin. The toner is characterized by a good balance between fixing performances and developing performances suitable for a variety of models of image forming apparatus and in wide ranges of environmental conditions.

摘要翻译： 用于显影静电图像的调色剂由粘合剂树脂和长链化合物构成。 粘合剂树脂是分别具有优选25-70mgKOH / g的酸值的聚酯树脂或乙烯基树脂。 长链化合物是OH值为10〜120mgKOH / g的长链烷基醇或酸值为5-120mgKOH / g的长链烷基羧酸，其含有以满足 下式（1）或式（2）的条件：式（1）粘合剂树脂的酸值+长链烷基醇的OH值>（¼）粘合剂树脂的xOH值，或式（2）粘合剂的酸值 树脂+长链烷基羧酸的酸值>（¼）xOH值的粘合剂树脂。 调色剂的特征在于适用于多种型号的图像形成装置的定影性能和显影性能之间的良好平衡以及广泛的环境条件。

公开(公告)号：US06586147B2

公开(公告)日：2003-07-01

申请号：US09900039

申请日：2001-07-09

申请人： Wakashi Iida ,  Takaaki Kohtaki ,  Nobuyoshi Sugawara ,  Takayuki Itakura ,  Yojiro Hotta

发明人： Wakashi Iida ,  Takaaki Kohtaki ,  Nobuyoshi Sugawara ,  Takayuki Itakura ,  Yojiro Hotta

IPC分类号： G03G9087

CPC分类号： G03G9/0821 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797

摘要： A toner, particularly a color toner suitable for full-color image formation through a substantially oil-less heat-pressure fixing device, is formed from at least a binder resin, a colorant and a wax. The toner has viscoelasticity including: a storage modulus at 80° C. (G′80) in a range of 1×106-1×1010 dN/m2, storage moduli at temperatures of 120-180° C. (G′120-180) in a range of 5×103-1×106 dN/m2, and loss tangents (tan &dgr;=G″/G′ as a ratio between G″ (loss modulus) and G′ (storage molecules)) including a loss tangent at 180° C. (tan &dgr;180) and a minimum of loss tangents over a temperature range of 120-180 ° C. (tan &dgr;min) satisfying 1≦tan &dgr;180/tan &dgr;min. The toner further exhibits a thermal behavior providing a heat-absorption curve according to differential scanning calorimetry (DSC) showing a maximum heat-absorption peak temperature in a range of 50-110° C. in a temperature range of 30-200° C.

摘要翻译： 至少粘合剂树脂，着色剂和蜡形成调色剂，特别是适用于通过基本无油的热压定影装置进行全色图像形成的彩色调色剂。 调色剂具有粘弹性，包括：在80℃（G'80）的范围为1×10 6 -1×10 11 dN / m 2的储能模量，在120-180℃的温度下的储存模量（G'120-180） 范围为5×10 3 -1×10 6 dN / m 2，损耗角正切（tanδ= G“/ G'为G'（损耗模量）与G'（保存分子）之间的比率），包括180℃的损耗角正切 （tanδ180）和在120-180℃的温度范围内的最小损耗角正切（tan deltamin）满足1 <=tanδ180 / tan deltamin。 调色剂进一步表现出根据差示扫描量热法（DSC）提供热吸收曲线的热性能，其显示在30-200℃的温度范围内的最大吸热峰温度在50-110℃的范围内。