The present invention relates to multilayer films made of fluoro polymers, which have properties that make them suitable for use in the agricultural field, especially as greenhouse covering films. According to a first aspect, the invention relates to multilayer fluorinated films comprising at least three layers, including a layer A made of a first vinylidene fluoride copolymer with a crystallization temperature TcA, and a layer B made of a second vinylidene fluoride copolymer with a crystallization temperature TcB, TcA being greater than TcB, layers A and B being alternating, layer A being placed to the exterior and layer B between two layers A. Another subject of the invention relates to the use of the film according to the invention as an agricultural covering material, especially as a greenhouse covering.本發明係關於氟聚合物製的多層膜,其所具有的性質使其適用於農業領域,特別是作為溫室覆蓋膜。根據第一方面,本發明係關於多層氟化膜,其包含至少三層,包括結晶溫度為TcA的第一偏二氟乙烯共聚物形成的層A,及結晶溫度為TcB的第二偏二氟乙烯共聚物形成的層B,TcA大於TcB,層A和B交替,層A置於外部而層B介於兩個層A之間。本發明的另一標的係關於根據本發明之膜作為農業覆蓋材料,特別作為溫室覆蓋物,之用途。
