| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lid material mainly applied to a yogurt container, which preferably maintains heat sealing property and tightness, and effectively prevents deposition of yogurt as the content, on the back side of a lid. <P>SOLUTION: A high density distribution of a large number of microprojections 8 is formed all over the outer surface of a heat sealing layer 5 laminated on a base material layer 1. An excess amount of a hydrophobic particle dispersion liquid is once applied to the surface of the heat sealing layer 5 having the microprojections 8, the excess amount of the hydrophobic particle dispersion liquid is scraped and removed by a doctor knife, and the heat sealing layer is dried. Thus, a thin content deposition-preventing layer 6 is formed which has hydrophobic particles within the deposition range of 0.05-1.0 g/m<SP POS="POST">2</SP>. <P>COPYRIGHT: (C)2012,JPO&INPIT |
