| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an air-permeable packing material for desiccant which is capable of increasing the gas permeability and being easily manufactured and har a simple laminated structure, which is suitable for packing a desiccant, and of which printed layer is not exposed to the surface. <P>SOLUTION: A packaging material of this invention is characterized in that it is comprised of a gas permeable base layer made of nylon, a printed layer, a gas permeable adhesive layer and a heat adhesive non-woven fabric layer which are laminated in order, and the gas permeable adhesive layer is a hot melting extruded layer of an ethylene-vinyl acetate copolymer containing 6-30 wt.% of vinyl acetate. <P>COPYRIGHT: (C)2004,JPO</p> |
