| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lid material mainly applied to a container for packaging pre-fermented yogurt, effectively preventing sticking of the contained yogurt to a rear surface of the lid material without harming heat sealability, and excellent in adhesion of a silica particle coating layer for anti-sticking of the content to eliminate unwilling falling/pealing. <P>SOLUTION: The lid material include at least a base material layer 1, a heat-sealing layer 5, and the content anti-sticking particle coating layer 6 made of hydrophobic dry silica particles S. A impregnation adhesion reinforced layer 6a into which a heat sealing layer component has entered by heat treatment is formed on a part of the particle coating layer 6 on the heat sealing layer 5 side, and an anti-sticking layer 6b with a surface of the hydrophobic dry silica particle S exposed and having a residual particle amount of 0.1-1.2 g/m<SP POS="POST">2</SP>is formed to remain on the impregnation adhesion reinforced layer. <P>COPYRIGHT: (C)2013,JPO&INPIT |
