发明名称 RESIN GUIDE DEVICE OF INFLATION MOLDING APPARATUS AND METHOD FOR PRODUCING FILM
摘要 PROBLEM TO BE SOLVED: To provide a resin guide device of an inflation molding apparatus which can obtain a film having a good appearance with reduced wrinkles and thickness nonuniformity and a method for producing the film. SOLUTION: The resin guide device 3 has a pair of guide members 6a, 6b arranged to be tapered on the sides of a pair of take-up rolls 4a, 4b. The members 6a, 6b have the first and second frames 7, 9 arranged at a prescribed interval and thin permeable sheets 8 stuck to the frames 7, 9. When bubbles B, which were extruded from an inflation molding die 2 and inflated, are brought into contact with the sheets 8, the sheets 8 wrap up the bubbles while being pushed outside by the bubbles B. Air is introduced into the sheets 8 from the outsides of the guide members 6a, 6b, and the bubbles B are cooked gradually.
申请公布号 JP2001162667(A) 申请公布日期 2001.06.19
申请号 JP19990353353 申请日期 1999.12.13
申请人 SUMITOMO CHEM CO LTD;THERMO KK 发明人 YAMAGUCHI TAKAZO;TAKAYANAGI TOMOKAZU;MORII AKIO;OSHIMA NORIYUKI
分类号 B29C47/08;(IPC1-7):B29C47/08 主分类号 B29C47/08
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