| 摘要 |
<p>PURPOSE:To facilitate the disposing process after use by deep-draw-forming a corrugated fiberboard wherein oilproofness or water-proofness is imparted, and at the same time, transmit an appropriate heat feeling to an eater by imparting an intermediate thermal conductivity. CONSTITUTION:One kind or more properties among oilproofness, waterproofness and water repellency, etc., are imparted to liners 6, 6a of a sheet base paper, and a central core 5 and the liners 6, 6a are affixed to manufacture a double face corrugated fiberboard 2. The sheet-form corrugated fiberboard 2 is cut while approximately adjusting to the shape of a food container 1, and a deep- drawing process by a compression molding wherein an embossing is performed while heating is done is applied, and the corrugated fiberboard 2 is put under a pressed condition wherein the central core 5 is laid down so as to be overlapped, and a food container 1 of which the thickness is approx. 0.5mm is formed. Since the food container 1 has a 3 layer structure wherein the pressed condition is different depending on locations, and is not totally integrated. For this reason, the food container 1 has an intermediate thermal conductivity which is higher than a synthetic article but lower than a paperboard, and can appropriately transmit the heat of a food to the external surface side.</p> |
