AGRICULTURAL FILM

摘要

PROBLEM TO BE SOLVED: To provide an agricultural film that has high transparency in an initial spreading period but changes its transparency with time after spreading.SOLUTION: Provided is an agricultural film which contains zinc oxide, and in which a difference between initial straight light transmissivity (%) at 555nm and straight light transmissivity (%) at 555nm after being exposed to an acceleration aging test of the following condition for 120 hours is 20% or more. (a) Irradiation of light having wavelength distribution of 295 to 780nm at irradiation intensity of 80 mW/cmfor 5 hours under a condition of 60°C and humidity 70%, and (b) a 1-hour cycle without irradiation under a condition of 30°C and 98% (with water spray by shower) are repeated alternately.SELECTED DRAWING: None