作者: Hannu Tamminen , Veikko Koivumaki , Pekka Peltonen , Veikko Koski
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摘要: A flexible container for transporting and storing bulk goods, preferably arranged so as to be liftable by its upper end, is constructed from a tubular blank include shell, bottom filling aperture, pleats being formed in the shell having lower parts which are folded coplanar with bottom. The free, margin of closed seam located substantially central region plane each pleat into affixed respective connecting seam. On side seam, there at least one supporting parallel distance advantageously range about 1/3 1/4 half-length