| 摘要 |
<p>The invention is directed to a barrier packaging material (1) with at least one discontinuous window (2), to a method for the preparation thereof, and to the use thereof.
The barrier packaging material (1) of the invention comprises
- a paper (3) comprising at least one discontinuous window (2), said paper (3) having a front side and a back side;
- a layer of a heat-sealed material (4) at least on the back side of said paper (3); and
- a transparent or semi-transparent barrier layer (5) laminated to the paper (3) through said layer of heat-sealed material (4).
The method for preparing the barrier packaging material (1) of the invention comprises
i) providing a heat-sealable paper, wherein said paper has a front side and a back side and heat-sealable material (4) is provided at least the back side of said paper (3);
ii) removing at least one discontinuous window (2) from the paper as obtained in step i); and
iii) laminating the paper as obtained in step ii) on the back side with a barrier layer (5) while applying heat and pressure.</p> |
