Energy saving greenhouse screen
AssigneeAB Ludvig Svensson
InventorsSara Widén, Daniel Asplund
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Abstract
A greenhouse screen comprising strips of film material that are interconnected by a yarn system of transverse threads and longitudinal threads by means of knitting, warp-knitting or weaving process to form a continuous product. The film material comprises a highly transparent, biaxially oriented, UV and flame-stable polyester film which is provided on at least one side with a coating which reduces the reflection of visible light. The greenhouse screen is particularly suited for the cultivation of plants with high light requirements.
Claims18
A greenhouse screen comprising strips of film material that are interconnected by a yarn system of transverse threads and longitudinal threads by means of knitting, warp-knitting or weaving process to form a continuous product, and at least some of said strips comprise a film material in the form of a single- or multilayered base film provided with at least one anti-glare/anti-reflective coating on a first surface of the base film, said film material has a transparency of at least 93.5% and comprises a total amount of particles of <0.5 wt. % as calculated on a total weight of the film material,
- wherein
- said at least first anti-glare/anti-reflective coating
- has a dry thickness of between 60 and 130 nm;
- and
- comprises at least one acrylic acid and/or a methacrylic acid based polymer;
- and
- comprises at least one alkyl phosphonate and/or oligo-alkyl phosphonate flame retardant;
- and
- contains phosphorus in an amount of between 2 wt. % and 18 wt. % as calculated based on a total weight of the coating.
Dependencies are inferred from the claim text.