Woven ground cover materials

摘要

A ground cover sheet material for use in agriculture is woven from warp and weft tapes of a plastics material and at least some of the warp or weft tapes have a greater width and/or thickness than the weft or warp tapes, or the material includes a higher density of warp or weft tapes relative to the weft or warp tapes per unit area, or includes slits through the tapes, or the tapes are folded lengthwise, all optionally in one or more high water flow through lengthwise extending parts of the material. In one embodiment the material is woven from warp or weft tapes some having a rectangular or square cross-section and some having a circular or oval cross-section. In some embodiments the material is also a reflective material.

主权项

1. A ground cover sheet material having greater length than width and woven from warp and weft tapes of a plastics material wherein at a majority of crossings of warp and weft tapes the warp tapes are partly folded lengthwise in one or more high water flow through-lengthwise extending parts of the material than in other lengthwise extending parts of the material on either side of said high water flow through-lengthwise extending part(s), so that said one or more high water flow through-lengthwise extending part(s) of the material has/have a rougher surface texture over which water will move more slowly when the material is flat on a sloping surface, of a consistent gradient, and through which water may flow or flow more freely, than over and through said one or more other lengthwise extending part(s) of the material.