SYNTHETIC RESIN COVERING MATERIAL FOR AGRICULTURE AND PLASTIC GREENHOUSE FOR AGRICULTURE

摘要

PURPOSE: To obtain a synthetic resin covering material for agiculture effective for suppressing the excessive temperature drop in cold season and excessive temperature rise in hot season by applying a transparent coating film on one surface of a synthetic resin film substrate. CONSTITUTION: A transparent coating film having a thickness of 0.5-20μm is applied to a surface of a synthetic resin film substrate. The heat-insulation is further improved by using a transparent coating film having a blackbody radiation energy absorptivity of <=30% at 10μm thick in combination with a synthetic resin substrate having a blackbody radiation energy absorptivity of >=50% at 100μm thick. The coated side of the substrate is directed inward in cold season and outward in hot season.