| 发明名称 |
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| 摘要 |
A method is disclosed for fabricating packing containers comprised of a heat-shrinkable material. A web or blank of the material is heated on one side to an extent such that the material acquires a tendency to assume a tubular shape. Overlapping longitudinal ends of the web or blanks are heat and pressure sealed to form a tubular member. The ends of the tubular member are folded inwardly under the effect of heat to form flange-like portions to which end plates may be attached to form the packing container. |
| 申请公布号 |
DE2713048(C3) |
申请公布日期 |
1979.04.19 |
| 申请号 |
DE19772713048 |
申请日期 |
1977.03.24 |
| 申请人 |
TETRA PAK DEVELOPPEMENT S.A., LAUSANNE (SCHWEIZ) |
发明人 |
OHLSSON, INGEMAR WILHELM, MALMOE (SCHWEDEN) |
| 分类号 |
B29C61/00;B29B13/02;B29C35/04;B29C53/00;B29C53/04;B29C53/50;B29C57/00;B29C61/02;B29C65/02;B29C69/00;B29D22/00;B31B1/64;B31B17/00 |
主分类号 |
B29C61/00 |
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