Carpet backing cloth (CBC) is a kind of balanced fabric, weighing between 180 - 407 g/m²  used as a base for making carpets.  They are made of uniform yarns of a particular grist. Normally CBC are classified into the following two categories for being used in tufted carpet industry:

a)    Carpet backing (primary) -The base fabric on which pile yarns are tufted and
                                             anchored to make a carpet.

b)    Carpet backing (secondary) - Fabric bonded on the backside of the carpet
                                                 forming an underlay.