| 摘要 |
There is provided a flat die adapted to achieve a desired thickness distribution without a complicated structure even in laminating resins having different viscosities in molding. A flat die 1 of the present invention includes a resin inlet portion 20, a manifold 21 connected to the resin inlet portion 20, and a lip opening 12. The flat die 1 further includes a projecting cavity 22, whereby, when resins of different kinds flow in the manifold 21 in a laminated condition in a thickness direction, each of the resins spreads in a different way in the width direction.
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