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    • 1. 发明授权
    • Positive charging color toner
    • 正彩色调色剂
    • US6096467A
    • 2000-08-01
    • US190014
    • 1998-11-12
    • Yoshitake ShimizuTakahiro IshiharaHiroshi ShimoyamaToyotsune InoueTakashi NishinoKazuya NagaoKenshi MatsuiTakayuki ItakuraNorio Horikami
    • Yoshitake ShimizuTakahiro IshiharaHiroshi ShimoyamaToyotsune InoueTakashi NishinoKazuya NagaoKenshi MatsuiTakayuki ItakuraNorio Horikami
    • G03G9/087G03G9/097
    • G03G9/08755G03G9/08764G03G9/08795G03G9/0975Y10S430/104
    • Disclosed are a positive charging color toner comprising a coloring agent and a positive charging electric charge controlling material in a fixing resin, wherein the fixing rein is an urethane-modified polyester resin having an acid value of not more than 5 KOHmg/g, a hydroxyl value of not more than 9 KOHmg/g, a weight-average molecular weight of 8,000 to 120,000 and a number-average molecular weight of 2,000 to 70,000, and the positive charging electric charge controlling material is (a) a quaternary ammonium salt having a melting point of not less than 200.degree. C., or (b) a styrene-acrylate copolymer having a trisubstituted amminio group and a glass transition temperature Tg of not less than 55.degree. C.; and a positive charging one-component non-magnetic color toner comprising a polyester resin having an acid value of not more than 5 KOHmg/g, a hydroxyl value of not more than 9 KOHmg/g, a weight-average molecular weight of 7000 to 20,000 and a number-average molecular weight of 1,000 to 6,000, a polyolefine (releasing agent) having an acid value of not more than 10 KOHmg/g and a weight-average molecular weight of 8,000 to 15,000, a proportion of a polyolefine having a particle diameter of not less than 1.5 .mu.m among polyolefines dispersed in the toner being within 1% in terms of the number, a coloring agent and a positive charging electric charge controlling resin.
    • 公开了一种在定影树脂中包含着色剂和正电荷电荷控制材料的正电荷彩色调色剂,其中定影重量为酸值不大于5KOHmg / g的氨基甲酸酯改性聚酯树脂,羟基 值不超过9KOHmg / g,重均分子量为8,000至120,000,数均分子量为2,000至70,000,并且正电荷电荷控制材料为(a)季铵盐,其具有 熔点不低于200℃,或(b)具有三取代氨基的苯乙烯 - 丙烯酸酯共聚物,玻璃化转变温度Tg不低于55℃。 以及含有酸值为5KOHmg / g以下的聚酯树脂,羟值为9KOHmg / g以下的正电荷单组分非磁性彩色调色剂,重均分子量为7000〜 20,000,数均分子量为1,000〜6,000,酸值不大于10KOHmg / g,重均分子量为8,000〜15,000的聚烯烃(脱模剂),具有 分散在调色剂中的聚烯烃中的粒径不小于1.5μm,以数量计,1%以内,着色剂和正电荷电荷控制树脂。
    • 2. 发明授权
    • Positive charging color toner
    • 正彩色调色剂
    • US06174639B1
    • 2001-01-16
    • US09540542
    • 2000-03-31
    • Yoshitake ShimizuTakahiro IshiharaHiroshi ShimoyamaToyotsune InoueTakashi NishinoKazuya NagaoKenshi MatsuiTakayuki ItakuraNorio Horikami
    • Yoshitake ShimizuTakahiro IshiharaHiroshi ShimoyamaToyotsune InoueTakashi NishinoKazuya NagaoKenshi MatsuiTakayuki ItakuraNorio Horikami
    • G03G9097
    • G03G9/08755G03G9/08764G03G9/08795G03G9/0975Y10S430/104
    • Disclosed are a positive charging color toner comprising a coloring agent and a positive charging electric charge controlling material in a fixing resin, wherein the fixing rein is an urethane-modified polyester resin having an acid value of not more than 5 KOHmg/g, a hydroxyl value of not more than 9 KOHmg/g, a weight-average molecular weight of 8,000 to 120,000 and a number-average molecular weight of 2,000 to 70,000, and the positive charging electric charge controlling material is (a) a quaternary ammonium salt having a melting point of not less than 200° C., or (b) a styrene-acrylate copolymer having a trisubstituted amminio group and a glass transition temperature Tg of not less than 55° C.; and a positive charging one-component non-magnetic color toner comprising a polyester resin having an acid value of not more than 5 KOHmg/g, a hydroxyl value of not more than 9 KOHmg/g, a weight-average molecular weight of 7000 to 20,000 and a number-average molecular weight of 1,000 to 6,000, a polyolefine (releasing agent) having an acid value of not more than 10 KOHmg/g and a weight-average molecular weight of 8,000 to 15,000, a proportion of a polyolefine having a particle diameter of not less than 1.5 &mgr;m among polyolefines dispersed in the toner being within 1% in terms of the number, a coloring agent and a positive charging electric charge controlling resin.
    • 公开了一种在定影树脂中包含着色剂和正电荷电荷控制材料的正电荷彩色调色剂,其中定影重量为酸值不大于5KOHmg / g的氨基甲酸酯改性聚酯树脂,羟基 值不超过9KOHmg / g,重均分子量为8,000至120,000,数均分子量为2,000至70,000,并且正电荷电荷控制材料为(a)季铵盐,其具有 熔点不低于200℃,或(b)具有三取代氨基的苯乙烯 - 丙烯酸酯共聚物,玻璃化转变温度Tg不低于55℃; 以及含有酸值为5KOHmg / g以下的聚酯树脂,羟值为9KOHmg / g以下的正电荷单组分非磁性彩色调色剂,重均分子量为7000〜 20,000,数均分子量为1,000〜6,000,酸值不大于10KOHmg / g,重均分子量为8,000〜15,000的聚烯烃(脱模剂),具有 分散在调色剂中的聚烯烃中的粒径不小于1.5μm的粒径在数量之外在1%以内,着色剂和正电荷电荷控制树脂。