| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a packaging bag of large capacity storing solvent type ink therein in which it shows a superior bag anti-rupturing characteristic at the time of its dropping and also shows a gas-barrier characteristic. <P>SOLUTION: There is provided a packaging material for use in storing a solvent type ink therein in which a co-extrusion layer laminated under a co-extrusion process, a barrier layer and a surface protection layer are laminated in this sequence, the co-extrusion layer has sealant resin layers laminated at both surfaces of the resin layer becoming a core material through adhering resin layer. This packaging material is characterized in that a total thickness of the co-extrusion layer is 90 μm or more, a thickness of the sealant resin layer at the inner-most surface is 50 μm or more, the barrier layer is made of metallic foil and its thickness is 7-20 μm. <P>COPYRIGHT: (C)2011,JPO&INPIT |
