| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lid material with good re-sealability even if the material is of a laminate structure without using an aluminum foil. <P>SOLUTION: The lid material is made of a laminate including at least a sealant layer laminated on one of surfaces of a paper layer, and is equipped along its outer periphery with a tear-open pull-tab protruding outward from a container flange when the lid material is sealed to a container. A hook having three sides on the side of the container flange surrounded by cut lines and the remaining side connected with a tear-open pull-tab body for hooking on the container flange is provided in the tear-open pull-tab. Further, so as to cause the hook to engage with the container flange to re-seal after a part of the lid material is peeled off from the pull-tab, a plurality of creases for folding the peeled part of the material up and down to form an upward protrusion are provided linearly from one end to the other of the lid material in the proximity of the pull-tab. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
