| 摘要 |
<p>To make the separation of pulp from polyethylene and other thermoplastic synthetic resins easier, in the recycling process for isolating pulp from the "pack" containers made of paper as the base material for packaging liquid foods after the content has been consumed up. [Construction] A desired multilayer structure is constructed by laminating polyvinylalcohol or other water-soluble, thermoplastic resin layers 2, 2 on both sides of a paperboard base material layer 1 respectively, forming over 2 in the outer surface of the container a polyethylene or other thermoplastic synthetic resin layer 3 while forming a liquid-resistant material layer 4 comprising a polyethylene or other thermoplastic synthetic resin, and if desired, laminating an aluminium foil layer 5 over a polyethylene or other adhesive resin layer 6, which is formed on the liquid-resistant material layer 4. <IMAGE></p> |
