| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a lid material having a hot water drip function which necessitates hot water drip eliminating such difficulties as conventional way of management of peelability of an easily peelable layer, management of positional precision of a half cut, etc., and making production management easy. SOLUTION: The back face of the lid material is sealed on a flange part 21 of a container. The lid material 1 having the hot water drip function with a layer composition has an unsealing pull-tub 12 on the outer peripheral edge and a pull-tub 13 for opening the hot water draining opening on the peripheral edge opposite to the pull-tub, and is a multi-layer of a sealant layer 16 laid on the back face of a base material 11 having at least a paper layer 14. A front half-cut groove 24 of a finger-shape extending from outside of both edges 13a, 13b of the base part of the pull-tub 13 for opening the hot water draining opening toward the unsealing pull-tub till a specified position, and a back half- cut groove 26 adjoining to it with a specified width W are carved.</p> |
