| 摘要 |
PURPOSE:To provide a T-die efficiently minimizing neck-in and preventing resin scorch causing the deterioration of quality. CONSTITUTION:In a die main body 21 having a double structure having first and second manifolds 22, 24 and first and second planar passages 23, 25, a spiral groove 28a is provided to the first seal rod 28 in the first manifold over the total width thereof and the lower end of the second forming plate 29a of the second seal rod 29 in the second manifold and the upper end of the third seal rod 30 on the upper side of a lip land part 26 are provided in the second planar passage so as to be spaced apart from each other at a predetermined interval. |
