| 摘要 |
PROBLEM TO BE SOLVED: To effectively prevent leakage of a resin and to prevent a resin film to be discharged from a T-die unit from becoming a high edge by forming a shape of a front end of an edge side in an R shape or an oblique shape so as to become a flared space in a resin discharging direction. SOLUTION: Deckles 2 each for specifying a flow of resin are provided at both sides of a T-die unit body 1 having a rod bar 3 with an edge side 6. The deckles 2 are supported by deckle support bars 7 to slide in a width direction in the body 1. The bar 3 specified a flowing width of the finally flowing resin to prevent high edges at both ends of a molten resin film 9. The bar 3 slides in the width direction at a bottom of the deckle 2 at a downstream side of the resin flow from the deckle 2. The edge side 6 slides in the width direction by partly protruding from a lower surface 10 of a lip so as to block a gap of a die slit. Here, a shape of a front end of the bar 3 is formed in an R shape or an oblique shape, and a molten resin flowing out from an upper end to downward of the bar 3 is flared outward.
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