In the past few years, multiaxial fabrics have gained popularity in the construction industry, especially with regard to composite parts. In most cases, the fabrics are made of two or more layers of fibers that are joined using mending threads that are mostly made of polyester especially since it’s a very good binding material.
There are two main ways of creating multiaxial fabrics.
- Weaving and stitching
Layers of fabric are literally woven together on a specialized machine. Heavy rovings are used for each layer to make them nice and strong which is then followed by the stitching action which is done by a stitching frame.
This is done on specialized machines that use the basic knitting technique. The process varies from one machine to another but ultimately, the frame in question takes in the fibers one by one for each of the layers until all the layers are complete.
Compared to the woven fabrics, multiaxial fibers have:
- Improved mechanical function owing to the fact that the different fibers remain straight and not crumpled up. Additionally, the increased layers of fabric used give it more robustness.
- Faster component construction that can be attributed to the thicker fabric and so you no longer need to add many layers to your laminate arrangement,
Polyester doesn’t really do a good job of holding some resin combinations which means that different failures could take place. The problem with this is that it can significantly slow down the manufacturing process which ultimately results in high operational costs.
We cannot however deny the fact that multiaxial fabrics have revolutionized construction with more efficient components being created, the mechanization of the process also makes for lower costs of production. The important thing is to bear in mind the intended use of the fabric before its construction for a great result.