Tufting is the process of inserting yarns into a base fabric before it is coated on specialized multi-needle sewing machines. Some products use multiple yarns while other's might just use one. Several hundred needles stitch hundreds of rows of yarn tufts through a backing fabric, called the primary backing. From here the newly stitched turf is rolled up into a massive roll, and is ready for the next process - coating. Below, you can better see how the process works.