| 摘要 |
PROBLEM TO BE SOLVED: To provide a cloth sheet which is superior in the handling, shading and water-permeability, has a high strength, and free from the contamination, by forming a surfactant-containing coating layer on a surface of a flat yarn made of a polyolefin resin including antibiotics or mildewproof agent, and closely weaving the same. SOLUTION: The antibiotics or mildewproof agent is blended in a polyolefin resin such as polypropyrelene, and a film is molded by a T-die flat method using an extruder, or the like. The film is slit thermally drawn, and then thermally relaxed to form a flat yarn. Carbon black is optionally blended into the flat yarn, to improve the shielding property and weather resistance. A coating layer of a surfactant is formed on a surface of the flat yarn for the water permeability. The flat yarn is closely woven while using the same as the warp and weft, to obtain a cloth sheet. The cloth sheet is used on the soil or the like in the agriculture or the like, for effectively preventing the weed and the mud. |
