| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a paper-made lid material for a container, which is excellent in oil resistance without using an aluminum foil and excellent in easiness to peel with dead holdability. <P>SOLUTION: The paper-made lid material for covering an opening of a flanged container body (20) without using the aluminum foil hermetically sealed with a flange (21) is constituted of a composite sheet (11) having an easily peelable sealant layer (15) provided in the innermost layer and paper of at least two-layered structure in addition to the sealant layer. The paper of the two-layered structure is made by gluing two kinds of paper, wherein the paper (13) in a lower layer has a higher elongation than the paper (12) in a higher layer. The paper (13) in the lower layer is extended in a longitudinal or lateral direction in advance to apply unevenness and thereafter is further crushed and processed. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
