| 摘要 |
PROBLEM TO BE SOLVED: To mold a container having high gas barrier properties to gasohol mixed with alcohol by forming a multilayered parison consisting of an inside main raw material, a first adhesive raw material, a barrier raw material composed of EVOH, a second adhesive raw material, a regeneration material and an outside raw material. SOLUTION: First, second, third and fourth annular nozzles 2, 3, 4, 4A are provided concentrically and the first and third annular nozzles 2, 4 are connected to an adhesive raw material extruder 8. The second annular nozzle 3 is connected to a barrier raw material extruder 9 for extruding a barrier raw material composed of an ethylene/vinyl alcohol copolymer resin (EVOH) having gas barrier properties against gasohol containing alcohol. Therefore, respective raw material passages 5, 5A and the annular nozzles 2, 3, 4, 4A are mutually concentrically formed in respective heads. The four annular nozzle 4A is connected to a regeneration material extruder 30 extruding a regenerating material obtained by grinding burr of a molded product. |
