UPPER SURFACE AIR PERMEABLE PLASTIC LAMINATE PACKAGING BAG

摘要

PROBLEM TO BE SOLVED: To provide a novel plastic film bag showing decreased pollution in a laminate by preventing water containing a microorganism from oozing to the lower surface from lower side holes. SOLUTION: An upper surface air permeable plastic laminate bag for culture soil showing improved microorganism pollution is a plastic laminate packaging bag made by using 100 to 200μm thick film and has 4 to 30 pieces of air holes keeping approximately the same interval among them only on one side.