| 摘要 |
<p>PURPOSE: To store a liquid packed material so as to preserve high quality by constituting a plastic container of a plurality of material layers and constituting the inner material layer coming into contact with a packed material of a pure plastic material which has a high purity catalyst or does not have a catalyst or a stabilizer. CONSTITUTION: A plastic container 10 constituted as a barrel fitted with a tap cock is constituted of three material layers to form a three-layered container wall B'. A plastic material constituting the innermost container wall 42, coming into contact with a liquid packed material is set high in purity and does not have a catalyst containing metal ions or a heat stabilizer. The middle container wall 46 has a fiber material and is enhanced in load resistance, and thickness is made constant by the outer container wall 44. Therefore, a toxic substance will not be contained in the liquid charged in the container 10, and a liquid packed material in the photograph industry can be stored.</p> |
