| 摘要 |
<p>A packaging bag material having a structure obtained by laminating of a sealant layer (1) constituted of a synthetic resin layer having an inside surface capable of heat sealing and a barrier layer (3) including a metal thin-film layer (7) with an extruded polyethylene layer (2) interposed therebetween. A synthetic resin layer (6) that is detachable from the polyethylene layer is disposed at an interface between the extruded polyethylene layer and at least one of the sealant layer and the barrier layer. Preferably, the metal thin-film layer is an aluminum foil or aluminum vapor deposition layer. The packaging bag material of this structure is especially suitable for use as a packaging bag material for hardenable compositions, such as resist inks, adhesives, paints, printing inks and the like.</p> |
