| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a vegetable and fruit packaging bag made of a lactic acid based copolymer, which has appropriate moisture permeability and biodegradability, is flexible and excellent in machinability in bag-making and also has an excellent fog resistance. SOLUTION: The vegetable and fruit packaging bag made of the lactic acid based copolymer which contains 2 to 50 wt.% of a polyester structural unit comprising a dicarboxylic acid and a diol which are dehydrated and condensed and/or a polyether structural unit comprising a dicarboxylic acid and a polyether polyol which are dehydrated and condensed has appropriate moisture permeability to food, vegetable and fruit in particular and excellent fog resistance and is excellent in machinability in bag-making. Finding this fact has led to completion of the invention.</p> |
