| 摘要 |
The disclosure relates to a method of realising a sliced, refolded edge (15) of a packaging laminate (10) which displays a core layer (11) of a fibrous material, as well as a gas barrier layer (12) of low elasticity comprising the successive steps of: a) orienting the packaging laminate (10), a free edge (22) thereof being utilised as the register edge, b) reducing the thickness of a region (16) along said free edge using slicing technique (24) on the fibrous side of the packaging laminate, c) retaining the orientation of the packaging laminate (10) with said free edge (22) as the register edge, d) forming a longitudinal, linear groove (17) in the sliced edge region (16) on the fibrous side (11) of the packaging laminate, in that fibrous materail is removed from the core layer right down to, or substantially down to the gas barrier layer (12), e) folding the edge 180 DEG in the groove, whereafter f) the edge is sealed into a refolded edge (15). The present invention also relates to a packaging container or a blank therefor produced from the packaging laminate. |
