Fabric membrane structure are in their true essence, the building blocks of any tensile fabric structure. Made by the process of fabrication, it is one of the most important stages in design of tensile fabric structures. The materials used in manufacture of membrane are usually polymer or polymer based fibers. Sometimes naturally occurring fibers like cotton is also used.
The process followed is highly complex and involves various chemical and physical process. They may include polymerization, compression and tension molding, extrusion, additive molding, spinning etc. Each process has its own functions. For instance while extrusion leads to melting of granules and their subsequent conversion to long tubes, spinning involves making fibers or yarns out of cotton balls. The fiber provide strength and durability to fabric membrane structure. The requirement of different tensile structures is provided for in this process. These requirements are met by adjusting the content of some materials.