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    • 5. 发明授权
    • Two-color thermosensitive recording material
    • 双色热敏记录材料
    • US4599630A
    • 1986-07-08
    • US669838
    • 1984-11-09
    • Kazumi OhtakiHiroshi Sakamoto
    • Kazumi OhtakiHiroshi Sakamoto
    • B41M5/30B41M5/323B41M5/333B41M5/34B41M5/40B41M5/42B41M5/18B41M5/22
    • B41M5/34B41M5/323B41M5/3333B41M5/3335B41M5/423
    • A two-color thermosensitive recording material using leuco dyes is disclosed, which is capable of forming two different colors when heated at different temperatures, black or blackish color at a low temperature and another color at a high temperature, comprising a support material, a high-temperature color-forming material overlaying the support material, a decolorization layer overlaying the high-temperature color-forming layer, and a low-temperature color-forming layer overlaying the decolorization layer, and when necessary, an intermediate layer interposed between the decolorization layer and the low-temperature color-forming layer, the decolorization layer containing an aliphatic amine or a morpholine derivative of the formula of ##STR1## which are fully defined in the specification, and the low-temperature color-forming layer containing as a color developer a thiourea derivatives of the formula, ##STR2## which is fully defined in the specification.
    • 公开了一种使用无色染料的双色热敏记录材料,其能够在不同温度下加热时形成两种不同的颜色,在低温下为黑色或黑色,另一种颜色为高温,其包含支撑材料,高 覆盖支撑材料的高温成色材料,覆盖高温成色层的脱色层和覆盖该脱色层的低温成色层,以及必要时介于该脱色层之间的中间层 和低温成色层,含有本说明书中完全限定的式“IMAGE”的脂族胺或吗啉衍生物的脱色层和含有彩色显影剂的低温着色层 在该说明书中完全定义的下式的硫脲衍生物
    • 10. 发明授权
    • Color toner for electrophotography
    • 彩色电子照相调色剂
    • US4888263A
    • 1989-12-19
    • US939382
    • 1986-12-08
    • Masami TomitaYoshihiro NomuraNoriaki IdeKazumi Ohtaki
    • Masami TomitaYoshihiro NomuraNoriaki IdeKazumi Ohtaki
    • G03G9/09
    • G03G9/0908
    • This invention relates to a color toner for electrophotography containing a coloring agent and a binder resin as the main components, said coloring agent comprising at least one of the anthraquinone derivatives expressed by the following general formula (I), ##STR1## wherein R.sup.1 represents hydrogen or an alkyl group having at least 6 carbon atoms and R.sup.2 represents hydrogen, an alkyl group having at least 6 carbon atoms or phenyl group.This invention further relates to a color toner for electrophotography containing a coloring agent and a binder resin as the main components, in addition to said anthraquinone derivatives of the general formula (I), said coloring agent further comprising at least one of the compounds expressed by the following chemical formulas (II) and (III): ##STR2##
    • 本发明涉及含有着色剂和粘合剂树脂作为主要成分的电子照相用彩色调色剂,所述着色剂包括由以下通式(I)表示的至少一种蒽醌衍生物,其中 R 1表示氢或具有至少6个碳原子的烷基,R 2表示氢,具有至少6个碳原子的烷基或苯基。 本发明还涉及含有着色剂和粘合剂树脂作为主要成分的用于电子照相的彩色调色剂,除了通式(I)的所述蒽醌衍生物之外,所述着色剂还包含至少一种由 (II)和(III)的化学式(II):(III)