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2. 发明公开

EP1111474A2 Image forming method and heat fixing method using a toner including a wax 失效
标题翻译： Bilderzeugungsverfahren undWärmefixierungsmethodeunter Anwendung eines wachshaltigen碳粉
公开(公告)号：EP1111474A2
公开(公告)日：2001-06-27
申请号：EP01200605.2
申请日：1996-05-30
申请人： CANON KABUSHIKI KAISHA
发明人： Okado, Kenji, c/o Canon Kabushiki Kaisha , Maeyama, Ryuichiro, c/o Canon Kabushiki Kaisha , Inaba, Kouji, c/o Canon Kabushiki Kaisha
IPC分类号： G03G9/087 , G03G13/20
CPC分类号： G03G13/20 , G03G9/08782 , G03G9/08797 , G03G2215/2074
摘要： The present invention provides an image forming method including the steps of: forming an electrostatic latent image on a latent image holding member; developing the electrostatic latent image by using a color toner to form a toner image; transferring the toner image onto a recording material; and fixing the toner image to the recording material by a heat fixing device comprising a fixing film for contacting the toner image on the recording material, a heating member for heating the fixing film, and a pressing member for imparting a pressure to the recording material. In the method, the color toner contains at least a binder resin, a colorant and wax, the wax having a molecular weight distribution measured by GPC, which has a ratio of the weight average molecular weight (Mw) to the number average molecular weight (Mn) of 1.45 or less, a solubility parameter (SP value) of 8.4 to 10.5, and melting point of 50 to 120°C. At least the surface of the fixing film is formed with a copolymer having at least tetrafluoroethylene as a repeating unit in a main chain of the copolymer. If the contact angles between the wax and the heating member at 100°C and 200°C are A and B, respectively, the contact angles A and B satisfy the following relations: 60° ≤ A ≤ 80° 10° ≥ B - A ≥ 3°.
摘要翻译：本发明提供一种图像形成方法，包括以下步骤：在潜像保持部件上形成静电潜像; 通过使用彩色调色剂显影静电潜像以形成调色剂图像; 将调色剂图像转印到记录材料上; 以及通过包括用于使记录材料上的调色剂图像接触的定影膜的热定影装置，用于加热定影膜的加热构件和用于向记录材料施加压力的加压构件将调色剂图像定影到记录材料。在该方法中，彩色调色剂至少含有粘合剂树脂，着色剂和蜡，蜡具有通过GPC测量的分子量分布，其具有重均分子量（Mw）与数均分子量（Mw）的比值 Mn）为1.45以下，溶解度参数（SP值）为8.4〜10.5，熔点为50〜120℃。至少定影膜的表面形成有至少四氟乙烯作为重复单元的共聚物在共聚物的主链中。如果蜡和加热构件在100℃和200℃下的接触角分别为A和B，则接触角A和B满足以下关系： 60°≤A≤80° > 10°≥B-A≥3°。

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