| 摘要 |
PURPOSE:To improve the preservation properties and vermin-proof properties for grain by a method wherein rain is placed in a bag which is formed by a material for which a scaly shaped inorganic additive is added to polyethylene, and the bag is packaged by a vacuum packaging machine or after placing a deoxidation agent in the bag. CONSTITUTION:A bag of a material for which a scaly shaped inorganic additive is added to polyethylene is prepared. As the inorganic additive, mica, corpuscle titanium oxide or iron powder, etc. is used. Then, grain is placed in the formed bag, and the bag is packaged by a vacuum packaging machine, or grain is packaged by the bag after placing a deoxidation agent in the bag. Therefore, the bag has a slight air permeability, and the grain is packaged under a breathable condition. By this method, a quantity of residual oxygen, which is one of the conditions to hatch eggs of vermin becomes smaller, and the eggs are prevented from being hatched, and at the same time, entering of vermin from the outside is stopped. |
