Screen cloth for greenhouse window insect screen, has angular region with additional overlaps between weft yarns and pairs of warp yarns

摘要

Additional overlaps (4-4) between the weft yarns (I-IV) and pairs of warp yarns are provided in at least one angular region of the cloth (1). The overlaps combine to form imaginary diagonals (6). A screen cloth, preferably an insect screen for a ventilation window, especially in a greenhouse, has a mesh structure formed by warp and weft yarns at least predominantly comprising a first synthetic material. At least some of the weft yarns are heat-shrinkable yarns comprising a second synthetic material which has a greater shrinkage under the influence of heat than the first material. The heat-shrinkable yarns form a harmonica structure extending between both sides of the fabric and interlacing with the warp yarns. Additional overlaps between the weft yarns and pairs of yarns are provided in at least one angular region of the fabric and these overlaps are spaced apart by given distances and located in between overlap strips (V). The overlaps combine to form imaginary diagonals between the strips.