The carpets are made by using three sets of needles to loop together the backing yarn, the stitching yarn and the pile yarn in a single operation.
The carpets usually have nylon backing with a chain stitch for higher resistance to stresses. A coat of additional latex or similar adhesives is applied to give additional body. A second backing is often added for providing greater dimensional stability.
The pile is usually uncut, but cut pile can also be obtained with modifications in the knitting machine. Sculptured surface can also be obtained.
Knitted carpets and rugs have the following advantages:
- High resistance
- High dimensional stability