| 摘要 |
PROBLEM TO BE SOLVED: To prepare a rice ball packaging film which is environmentally friendly, capable of being directly in contact with foods, usable in microwave ovens, and packageable by the existing automatic packaging machines. SOLUTION: This rice ball packaging film is composed of a polylactic acid based polymer and has a storage elastic modulus E' at 120 deg.C by the testing method relating to the temperature dependence of viscoelasticity on the basis of JIS K7198 of >=100 MPa, and a coefficient of dynamic friction of 0.15-0.5. |
