Why choose polyester webbing for TPU coated webbing?

Polyester webbing refers to the general term for blended fabrics of polyester, nylon and cotton. Which made of polyester as the main ingredient. So polyester webbing not only highlights the style of polyester, but also has the advantages of cotton. It has good elasticity and wear resistance no matter under dry or wet conditions. It has stable size and small shrinkage as well. Besides, it is upright, not easy to wrinkle, easy to wash and dry. Within the various advantage and strength, polyester webbing is widely used in women's clothing, belts, belts, cotton bags and other products.

Of course, polyester webbing isn’t the only one that is widely used in our daily products. For example, nylon and cotton are also the popular materials. Some products that with less request on quality may even use polypropylene webbing. But for TPU coating, we choose polyester webbing instead of webbing in other materials. Because polyester webbing owns the feature that other webbing lack of.

1. Suitable hardness

Polyester webbing have suitable hardness for coating process. Generally, the market demands soft webbing rather than the hard one. When coated with outer TPU or PVC layer, the braided webbing becomes harder. To make the coated webbing own comfortable hand-feeling and functional flexibility, polyester webbing wins nylon webbing. Actually, nylon webbing owns better strength than that in other materials. But the stronger webbing is also harder.

2. Small shrinkage

To coat webbing, the braided inner webbing should go through the high temperature machine. Almost any material of webbing will shrink under high temperature of more than 200 degrees. Relatively speaking, both nylon webbing and polyester webbing have small shrinkage. On contrast, cotton webbing and PP webbing have big shrinkage so that it’s not easy to process in the circumstance of high temperature. PP webbing will even break when going through the high temperature machine.

3. Good fusion with TPU

TPU coated webbing should have good peel-off strength to guarantee its good tension force. Through the experiment of TPU coating process, polyester webbing has good fusion with TPU while TPU coated nylon webbing has bad peel-off strength. In another word, the inner nylon webbing is easy to separate from the TPU layer.

In conclusion, polyester webbing becomes the most suitable inner webbing for TPU coated webbing. By the way, most of whom in webbing industry call the “imitate nylon webbing” as “nylon webbing”.