Biaxially oriented, UV-stabilized, single- or multilayer polyester film with a combination of silicon dioxide particles as light-scattering particles and UV stabilizer, process for producing same and use thereof in greenhouse blinds
The invention relates to biaxially oriented, UV-stabilized polyester films incorporating silicon dioxide particles as light-scattering particles and a UV stabilizer； a process for producing the same and to use thereof in greenhouse blinds. The invention particularly relates to single- or multilayer polyester film with transparency from 70 to 92 %, where:the film includes at least 1.0% by weight to at most 2.5% by weight of SiO2, with the d50 value of these SiO2 particles ranging from 3 to 9 μm,the SV value of the film is at least 700,the scattering factor SF of the film is at least 2 and not more than 8,the haze of the film is from 60 to 95%, andthe clarity of the film is from 15 to 40%； andall of the external layers comprise at least 0.3 % by weight of an organic UV stabilizer.
