| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To create a packaging bag made of an oriented polylactic acid-based film having biodegradability, transparency, excellent heat-resistance, and preferably having low-temperature heat sealability. <P>SOLUTION: The packaging bag is composed of an oriented polylactic acid-based film made of polylactic acid composite including poly-L-lactic acid and poly-D-lactic acid, and having a peak ratio (peak 1/peak 2) of a peak height (peak 1) of the maximum endthermic of an endthermic peak in the range of 150 to 200°C in measurement of DSC, to a peak height (peak 2) of the maximum endthermic peak of an endthermic peak in the range of 205 to 240°C of 0.2 or less. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
