| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve the drop resistance, to use a biodegradable bag for a composting plant of animal feces and perishable garbage in an extremely effective manner, and to prevent bad odors in advance by packaging animal feces and perishable garbage by forming the biodegradable bag of a biodegradable resin film of a specified tensile breaking load and a specified tensile breaking elongation. SOLUTION: A biodegradable resin mainly includes a polyalkyl-alkanoate resin. The polyalkyl-alkanoate resin is formed into a film by an inflation extrusion method at 190 deg.C, and in the range of 0.5-10 g/10 minutes in the melt-flow rate at the load of 2.16 kgf. A biodegradable bag is formed with the tensile breaking load of the film being 20-70 N/mm2, and its tensile breaking elongation being 300-1000%. The bag is of practical strength in the treatment using a composting plant, shuts off bad odors generated in the fermentation stage of animal feces and perishable garbage, and biodegradable after fermentation is advanced and generation of bad odors is completed.</p> |
