COINJECTION MOLDING OF DECORATIVE PREFORMS AND CONTAINERS PRODUCED FROM SUCH PREFORMS
    61.
    发明申请
    COINJECTION MOLDING OF DECORATIVE PREFORMS AND CONTAINERS PRODUCED FROM SUCH PREFORMS 审中-公开
    装饰性预制件和从这些预制件生产的容器的夹层成型

    公开(公告)号:WO1997021539A1

    公开(公告)日:1997-06-19

    申请号:PCT/US1996019864

    申请日:1996-12-09

    Abstract: A process for injection molding a multi-colored article in an injection mold, in which a) a desired initial quantity of a first-colored material is metered to a first desired portion of the cavity; b) a desired quantity of a second-colored material is supplied to the cavity, contiguously with the first-colored material, and is metered to a second desired portion of the cavity. The location of the first and second desired portions within in the cavity being controlled by providing the first and second-colored materials with appropriate melt viscosities and controlling the temperature and rate of supply of the first and second-colored materials. A multi-colored preform formed by the process that is suitable for blow molding a multi-colored container, and a multi-colored container blow molded from such a preform are also provided. In the multi-colored preform the boundaries (70) between the dark (43) and light colored PET (45) are wavy, and not straight.

    Abstract translation: 在注射模具中注射成型多色制品的方法,其中a)将期望的初始量的第一着色材料计量到空腔的第一所需部分; b)将期望量的第二着色材料与第一着色材料连续地供应到空腔,并且计量到空腔的第二所需部分。 通过提供具有适当的熔融粘度的第一和第二着色材料并控制第一和第二着色材料的温度和速率来控制在空腔内的第一和第二期望部分的位置。 还提供了通过适合于吹塑多色容器的方法形成的多色预成型体和由这种预成型件吹塑成型的多色容器。 在多色预制件中,暗(43)和浅色PET(45)之间的边界(70)是波浪形的,而不是直的。

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