| 摘要 |
A method for making bags from flexible plastic film comprises the steps of feeding a sheet of plastic film; making at least one indented pleated portion in the film and, in particular, a first and a second indented pleated portion ( 916, 918 ), and e forming the film into a tubular shape. According to the method of the invention, means are provided for sealing the respective end ( 916', 918' ) of the pleated portion, said means being in the form of a respective sealing band ( 942 ).
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