Horticultural covering film

文件类型：PDF文档
文件大小：209K
An object of the present invention is to provide an agro-horticultural soil cover film that reflects visible light, absorbs infrared light, reflects the light necessary for plant growth towards the plant side, and absorbs heat-generating infrared light to warm the soil without increasing the temperature of the air inside a greenhouse or the like. The agro-horticultural soil cover film has a white-light reflecting layer that includes a white-light reflecting material, and an infrared light absorbing layer that includes microparticles of an infrared absorbing material. The microparticles of the infrared absorbing material are at least one of tungsten oxide microparticles and composite tungsten oxide microparticles, wherein the tungsten oxide microparticles are indicated by the general formula WO X (2.45 = X = 2.999); and the composite tungsten oxide microparticles are indicated by the general formula M Y WO Z (0.001 = Y = 1.0, 2.2 = Z = 3.0), and have a hexagonal crystal structure.