| 摘要 |
<p>A gastight packaging material which is intended for use as a packaging for aroma or gas emitting products, i.e. products which degenerate as a consequence of influence from the surrounding atmosphere, comprises a grease repellent layer of greaseproof paper and at least one layer of plastic material. The greaseproof layer is on both sides coated with a layer of plastic material and is, if desired, additionally laminated with a thin sheet of paper or plstic. The total basic weight of the material will not excess a basic weight of 100, preferably 80 g/m2.</p> |
