Domestic technical textiles Industry Segment-wise consumption of ...

Carpet Backing Cloth
A carpet is any loom-woven, felted textile or grass floor covering. The global carpet market for
domestic and industrial end use is dominated by several varieties of carpet such as Hand Knotted
Carpets, Hand Woven Carpets, Tufted carpets, Needle felt carpets, Flat weave carpets, etc. Carpet
Backing Cloth (CBC) is used as the backing material for both woven and tufted carpets as depicted in
the figure below:
CBC is generally classified into two categories:
• Primary Carpet backing: The base fabric on which pile yarns are tufted and anchored to
make a carpet
• Secondary Carpet backing: Fabric bonded on the backside of the carpet forming an
underlay.
Primary backing is used for making the carpet in which yarn is woven or tufted. Carpet after being
dyed is send for secondary backing. Here the surface is smoothened and backing is applied. Latex is
applied on the back of the carpet by passing the carpet through the puddle of latex. Latex is forced
down by the blade around all the yarn on the back of the carpet, which locks the yarn into the backing.
A second coat of latex is applied thereafter which holds the secondary backing onto the tufted
material. The secondary backing provides dimensional stability while locking individual tufts in
place.
Product Characteristics
Primary backing is manufactured mainly from synthetic fabric. Secondary backing is made of both
jute and woven polypropylene. Jute carpet backing cloth is approximately 104" wide with gsm
varying between 180 and 407. Jute backing has certain limitations such as potential for browning and
rotting. Thus, the secondary backings used today are majorly woven polypropylene made of a leno
weave of slit film and spun olefin yarns that forms a stretchable secondary backing fabric. Synthetic
carpet backing cloth is available in many varieties of which some are:
Application Fabric characteristics
Primary Backing Fabric
spun polyester warp, spun polyester weft;
40 ends per 10 cm and 40 picks per 10 cm
Primary Backing Fabric
spun polyester warp, spun polyester weft;
70 ends per 10 cm and 70 picks per 10 cm
Secondary Backing polypropylene warp, acrylic weft; 32 ends
Fabric
per 10 cm and 40 picks per 10 cm weft
Secondary Backing
Fabric
cotton yarn nm 40/2 warp, nm 3.6/1 weft;
35 x 2 ends per 10 cm warp and 32 picks
per 10 per cm
149 gsm
266 gsm
78 gsm
135 gsm