Encapsulated toner having shell with first vinyl polymer with Mn of
2000-225000 and second vinyl polymer with Mn of 1000-15000
    1.
    发明授权
    Encapsulated toner having shell with first vinyl polymer with Mn of 2000-225000 and second vinyl polymer with Mn of 1000-15000 失效
    具有第一乙烯基聚合物的壳的包封的调色剂具有2000-225000的Mn和具有1000-15000的Mn的第二乙烯基聚合物

    公开(公告)号:US4797344A

    公开(公告)日:1989-01-10

    申请号:US911099

    申请日:1986-09-24

    摘要: An encapsulated toner is provided by coating core particles with an outer shell. The outer shell comprises, as predominant components thereof, vinyl polymers A and B of different molecular weights. More specifically, the ratio of the number-average molecular weight of the vinyl polymer A (Mn.sub.A) to that of the vinyl polymer B (Mn.sub.B) is in the range of 2 to 15. The vinyl polymers A and B respectively have a ratio of weight-average molecular weight to number-average molecular weight of 5 or less. Because of these specific molecular weight characteristics of the shell-constituting polymers, the durability and triboelectric charging characteristics of the encapsulated toner are improved. These effects are enhanced particularly when inorganic fine particles are attached to embedded in the surface or surface layer of the core particles.

    摘要翻译: 通过用外壳涂覆芯颗粒来提供包封的调色剂。 作为其主要成分的外壳包含不同分子量的乙烯基聚合物A和B. 更具体地说,乙烯基聚合物A(MnA)与乙烯基聚合物B(MnB)的数均分子量的比例在2至15的范围内。乙烯基聚合物A和B的比例分别为 重均分子量与数均分子量为5以下。 由于构成壳的聚合物的这些特定的分子量特性,胶囊化调色剂的耐久性和摩擦带电特性得到改善。 这些效果特别是当无机细颗粒附着在嵌入在核心颗粒的表面或表面层中时。

    Pressure-fixable microcapsule toner
    8.
    发明授权
    Pressure-fixable microcapsule toner 失效
    压力可固定的微胶囊调色剂

    公开(公告)号:US4497885A

    公开(公告)日:1985-02-05

    申请号:US588805

    申请日:1984-03-12

    摘要: A microcapsule toner for pressure fixing, comprising a core material containing a pressure-fixable component and a magnetic material, a first shell layer comprising a formaldehyde copolymer resin and a second shell layer comprising a polymer soluble in an organic solvent provided successively by coating therearound. This microcapsule, since a pressure-fixable core material is successively coated with a lipophobic first shell layer and a lipophilic second shell layer, has well-balanced pressure fixing characteristic and developing characteristic without core material exposed on the surface.

    摘要翻译: 一种用于压力定影的微胶囊调色剂,包括含有压力可固定组分和磁性材料的芯材料,包含甲醛共聚物树脂的第一壳层和包含可溶于有机溶剂的聚合物的第二壳层,所述聚合物依次通过在其上涂覆而提供。 该微胶囊由于压力可固定的芯材料连续地涂覆有疏油性第一壳层和亲脂性第二壳层,具有非常平衡的压力固定特性和显影特性,而没有芯材暴露在表面上。