| 摘要 |
<p>Obiective To provide paper material which can be used as packaging and cushioning material having air tightness, biodegradability, having conversion performance such as heat bondability, and easy to dispose. Solution To provide a laminated paper made by laminating a water soluble polyvinyl alcohol layer of 15 SIMILAR 40 mu m thickness, and air permeability of the laminated paper is 800,000 seconds/100ml or higher, total thickness is 40 SIMILAR 100 mu m, and the paper lengthwise softness is 50g or less. The laminated paper has high air permeability, extremely superior in air tightness, water soluble, and easy to dispose and recycle. Furthermore, there is no static electricity generated, it is strong in heat sealing, and it has conversion performance. Plus, in the safety aspect, it is non-toxic, waste is safe, and when cushioning material 10 is formed, disposal process is easy as the water soluble PVA film and the paper base are both biodegradable. This laminated paper is an environment friendly industrial material. <IMAGE></p> |
