什么是托幕线
What is a support line
(聚酯塑料钢丝，聚酯钢丝)聚酯帘线广泛应用于现代农业温室工程。其产品主要有黑色和透明两种颜色:黑色支撑帘线用于遮蔽温室外部，透明支撑帘线用于遮蔽温室内部。
(Polyester plastic steel wire, polyester steel wire) Polyester cord is widely used in modern agricultural greenhouse engineering. Its products mainly come in black and transparent colors: black support cords are used to shade the outside of the greenhouse, and transparent support cords are used to shade the inside of the greenhouse.
二，托幕线优点
2、 Advantages of supporting curtain line
它具有强度高、抗静电、阻燃、不易断裂、表面光滑、耐酸碱、耐紫外线辐射、耐候老化等特点，使用寿命长。
It has the characteristics of high strength, anti-static, flame retardant, not easy to break, smooth surface, acid and alkali resistance, UV radiation resistance, weather aging resistance, and long service life.
紫外线抗紫外线稳定性:添加大量抗紫外线成分使得窗帘线具有较长的寿命，窗帘线的拉伸强度降低不到3 %，黑色窗帘线的强度降低甚至更少。
UV resistance stability: Adding a large amount of UV resistant ingredients makes the curtain line have a longer lifespan, reducing the tensile strength of the curtain line by less than 3%, and the strength of the black curtain line is reduced or even less.
热稳定性:在- 40oC - 70oC的环境温度下，托幕线可以完全保持其机械性能和几何尺寸不变。
Thermal stability: At an ambient temperature of -40oC -70oC, the supporting wire can completely maintain its mechanical properties and geometric dimensions unchanged.
拉伸性能:与尼龙丝相比，筛网支撑丝的拉伸速率更低，因此可以轻松快速地拉伸，一旦拉伸，筛网支撑丝将保持这种拉伸状态，而不必再次拉伸。帘线的这一特性不同于其他尼龙线或单丝纤维，它们强度低，需要重新张紧。
Tensile performance: Compared to nylon wire, the stretching rate of the screen support wire is lower, so it can be easily and quickly stretched. Once stretched, the screen support wire will maintain this stretching state without the need to stretch again. This characteristic of cord is different from other nylon or monofilament fibers, as they have low strength and require re tensioning.
*光滑:窗帘线不吸收水分，所以经过多年的使用，它的表面仍然光滑无毛刺。葡萄枝叶和果实在天气下不会磨损，窗帘支撑线的表面光滑度锈钢铸件 保定建筑设计 螺杆式启闭机 保定搬家 电缆挂钩 保定室内设计培训 冲压机对窗帘支撑线支撑的遮阳保温窗帘有积极的影响，从而避免了遮阳保温窗帘的磨损。
*Smooth: The curtain thread does not absorb moisture, so after years of use, its surface is still smooth and free of burrs. Grape branches, leaves, and fruits do not wear out in the weather, and the surface smoothness of the curtain support line has a positive impact on the sun shading and insulation curtain supported by the curtain support line, thereby avoiding the wear and tear of the sun shading and insulation curtain.