| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hot water-draining lid material which has low stripping strength when exposing a hot water-draining hole, does not require registration of a half-cut hole upon the manufacturing and does not cause hole drop off upon stripping. <P>SOLUTION: Paper base material, a polyolefin-based resin, a plastic film and an easy-peel layer are laminated in this order from the outside, the interfacial peeling is enabled between the plastic film and the polyolefin-based resin, stiffness of the upper material after stripping is 3.0 N/15 mm to 20 N/15 mm, and stiffness of the lower material is 0.30 N/15 mm to 3.0 N/15 mm. The hot water-draining hole formed by half-cut working from easy-peel layer surface to paper base material and formed by stripping the upper material from the lower material, has such a shape that the long side on the hot water-draining tab side of a rounded rectangle of which the long side is positioned at a right angle with respect to the stripping direction of the upper material and the short side is positioned in parallel with the stripping direction of the upper material is circularly extended. <P>COPYRIGHT: (C)2013,JPO&INPIT |
