| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a wrapping tray wherein moisture occurring from contents in the tray can be easily collected into holes on a bottom of the tray and kept in the holes and the tray is convenient to wrap with a film and carry. SOLUTION: A resin film 1B which is improved in wettability by roughening a surface by corona discharge machining in advance is laminated on one of surfaces of a foamed resin sheet 1A to be an internal surface by heat or by an adhesive to provide a resin sheet. The resin sheet is pressure- or vacuum- formed to form a container having a bottom face 2 and a side face 3. An external bottom face 2a is made to be a flat surface without unevenness while numerous small holes 4 are formed on an internal bottom face 2b to mold the tray 1.</p> |
