| 摘要 |
<p>The invention relates to a layered packaging or covering material provided with at least two paper layers bonded by means of adhesive. The material comprises exclusively at least three paper layers bonded by means of biopolymeric adhesive. The invention comprises also a method for the manufacture of such material, wherein at least three paper layers, each with a biopolymeric adhesive in between are joined together and bonded by means of rollers.</p> |
