| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a retort pouch wherein the generation of an orange peel phenomenon is eliminated. SOLUTION: For this laminated bag for food packaging for which a laminated body 1 comprising at least a heat-resistant resin film 2, a metal foil layer 3 which is provided on the heat-resistant resin film 2, and a layer of a heat- sealable film 4 which is provided on the metal foil layer 3, is formed into a bag-shape in such a manner that the heat-sealable film 4 may become inside, an oil absorbing magnification difference in the TD direction of the heat-sealable film 4 is made to be in a range of 0-4 under the following regulation. In this case, the in-oil magnification is made a length of the heat-sealable film after being treated in an oil at 120 deg.C for 30 minutes/a length of the heat-sealable film before the treatment, and the in-water magnification is made a length of the heat-sealable film after being treated in water at 120 deg.C or in air for 30 minutes/a length of the heat-sealable film before the treatment, and the oil absorbing magnification difference is calculated by (in-oil magnification - in-water magnification)×100.</p> |
