| 摘要 |
PURPOSE:To provide the cooling device for inflation-formed multilayer film for preventing the adhesion of multilayer film product having tacky outer resin layer. CONSTITUTION:In a cooling device for inflation-formed multilayer film used in a former of tubular multilayer plastic film prepared by inflation method, the air blowing off angle A of a cooling ring 1 is directed 30-40 degree upwards from horizontal direction. At the same time, cooling air is set to strike against multilayer film 9 at the position 20-30mm apart from the lip opening 11 of a mold. |
