| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an apparatus and a method for manufacturing a blown film, which do not cause deposit due to condensation of a volatile component discharged from a plastic molten liquid, on a structural member of a blown film apparatus. <P>SOLUTION: The apparatus for manufacturing the blown film is composed of at least an extruder (1) whose outlet is connected to an annular nozzle (2), a planarizing device (6, 7) arranged upper or lower side of the nozzle (2) and an annular cooling device (3) arranged between the nozzle (2) and the planarizing device (6, 7); wherein a suction device (4) is arranged between the nozzle (2) and the planarizing device (6, 7). <P>COPYRIGHT: (C)2005,JPO&NCIPI |
