Method of manufacture of packing containers and packing...

B - Operations – Transporting – 29 – D

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154/53.05, 190/4

B29D 22/00 (2006.01) B29C 65/00 (2006.01) B29C 69/00 (2006.01) B65D 3/04 (2006.01) B29C 65/08 (2006.01)

Patent

CA 1157362

ABSTRACT The invention relates to a method for the manu- facture of packing containers, the container body of the packing container being manufactured by spiral winding of a monoaxially molecular-oriented polyester film. The said polyester film is spirally wound onto a mandrel to form a tube, the edge zones of successive turns of the strip over- lapping in a continuous joint, within which the material is sealed by means of surface fusion. The invention also relates to a packing container manufactured in accordance with the method.

362884

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