Glass yarn is commonly called Glass Yarn in the industry. Because of its unique properties, it can be used as a non-metallic reinforcing material for optical cables and is widely used in indoor and outdoor optical cables.

Glass yarn is a flexible non-metallic reinforcement that is different from aramid yarn. Before the advent of glass fiber reinforced yarn, flexible non-metallic reinforcement for optical cables mainly used aramid yarn. Aramid is not only an important reinforcing material in the field of optical cables, but also a precious material in the field of national defense, military, and aerospace.Glass yarn has a certain strength and modulus, both flexibility and lightness. It is cheaper than aramid yarn in price and can be used as a substitute for aramid yarn in many aspects.

Glass yarn manufacturing process Glass fiber reinforced yarn is also a composite material structurally, it is made of alkali-free glass fiber (E glass fiber) as the main material, uniformly coated with polymer, and heated.Although glass yarn is derived from glass fiber raw yarn, it has better processing technology and comprehensive performance than glass fiber raw yarn.The glass yarn is a very thin and easy to loose tow, which is very inconvenient to use. It is very convenient to use after uniformly coating the polymer.

Application of glass yarn Glass fiber reinforced yarn is a very good flexible optical cable carrying element, which is widely used in indoor and outdoor optical cable structures. The water-blocking glass fiber reinforced yarn has a dual function, which not only plays the tensile function of the optical cable, but also undertakes the water-blocking function of the optical cable.In fact, there is another function, which is the anti-rat function. It uses the peculiar stabbing characteristics of glass fiber to make rodents reluctant to bite the optical cable. In the production of indoor optical cable, due to the relatively small outer diameter of the optical cable, the glass fiber reinforced yarns are mostly placed in parallel in the optical cable to protect the optical fiber in the optical cable. It should be said that the process is relatively simple.

In the production of outdoor optical cables, the amount of glass fiber reinforced yarns used is relatively large, and generally they are carried out by armoring. A stranding cage with multi-end fiber yarns is often used. The stranding cage rotates to wrap the glass fiber reinforced yarn on the cable core. The glass yarn needs to achieve tension control to ensure that the tension of each yarn is uniform.