| 摘要 |
A method of creasing a packaging laminate manufactured from cellulose fibres, which packaging laminate comprises a bulk promoting layer (1), here denoted bulk layer, which consists of a network structure of cellulose fibers, and on at least one side of the bulk layer at least one side layer (2b), the side layer and bulk layer being directly or indirectly joined to each other over essentially their entire surfaces facing each other. In the method a creasing device is pressed down, in a first side of the laminate, for the formation of a crease line (4), while, on the other side of the laminate, which is opposite to said first side, a holding-on tool is used, which holding-on tool is essentially planar in an area corresponding to the location of the creasing device. The invention also relates to a packaging laminate provided with a crease line, and packaging which has been formed by the folding of such a packaging laminate. |
