PROBLEM TO BE SOLVED: To provide a multilayer film for use in farming, excellent in the effect for inhibiting UV rays in a wide wavelength range, the long lasting effect for inhibiting UV rays, and the long lasting weatherability.SOLUTION: A multilayer film 1 for use in farming includes an A-layer 2, a B-layer 3, and a C-layer 4 which are laminated in the order mentioned. The A-layer 2 includes a polyolefin resin, a triazine-based UV ray absorber, and a hindered amine-based light stabilizer including an organic group or an organic functional group bonded directly to, or through an oxygen atom to the nitrogen atom of a piperidine ring. The B-layer 3 includes a single or a plurality of layers including a polyolefin resin, and at least one of the layers includes benzotriazole-based UV absorber. The C-layer 4 includes a polyolefin resin. The multilayer film 1 for use in farming includes 0.05 to 0.5 parts by mass of the triazine-based UV ray absorber, 0.1 to 1.0 parts by mass of the benzotriazole-based UV ray absorber, and 0.1 to 1.0 parts by mass of the hindered amine-based light stabilizer, relative to 100 parts by mass of the polyolefin resin.COPYRIGHT: (C)2015,JPO&INPIT【課題】広い波長領域の紫外線の抑制効果、紫外線抑制効果の長期持続性、耐候性の長期持続性に優れた農業用多層フィルムの提供。【解決手段】A層2、B層3及びC層4がこの順に積層された農業用多層フィルム1で、A層2はポリオレフィン系樹脂、トリアジン系紫外線吸収剤、ピペリジン環の窒素原子に直接又は酸素原子を介して有機基又は有機の官能基が結合したヒンダードアミン系光安定剤を含み、B層3はポリオレフィン系樹脂を含む単層又は複数の層からなり、少なくとも1層にベンゾトリアゾール系紫外線吸収剤を含み、C層4はポリオレフィン系樹脂を含み、農業用多層フィルム1はポリオレフィン系樹脂100質量部に対して、前記トリアジン系紫外線吸収剤を0.05~0.5質量部、前記ベンゾトリアゾール系紫外線吸収剤を0.1~1.0質量部、前記ヒンダードアミン系光安定剤を0.1~1.0質量部含有する農業用多層フィルム1。【選択図】図1
