What is Cover Factor? | Cover Factor of Different Types of Woven Fabric
Mofizur Rahaman Akash
B.Sc in Textile Engineering
World University of Bangladesh
Email: akashcox@yahoo.com
Cover Factor: Cover factor is a number that indicates the extent to which the area of a fabric is covered by one set of threads. Covering power refers to the ability of an item to occupy space or to cover an area. A fabric with better cover will be warmer, look and feel more substantial, and be more durable.
For any woven fabric, there are two cover factors: a warp cover factor and a weft cover factor. It is depends on thread density and thread count. The higher the thread density is the higher the cover factor but the higher the thread count is the lower the cover factor.
But Cover Factor in knitting can be defined as a number that indicates the extent to which the area of a knitted fabric is covered by the yarn. It is also an indication of the relative looseness or tightness of the knitting. In this article I will discuss cover factor of woven fabric.
From the Table and Figure we were seen that the highest warp cover factor is 38.2 of Boxy and the lowest warp cover factor is 21 of Plain. Also we were seen that the highest weft cover factor is 21.9 of Ottoman and the lowest weft cover factor is 11.4 of Plain. Further we were seen that the highest total cover factor is 31 of Boxy and the lowest cover factor is 23.9 of Plain. So all the results we have got regarding cover factor comply with the theory.
Table: Cover factor of different types of woven fabric
Sample
Cover factor
Warp
Weft
Total
Dobby
26.9
19
27.7
Boxy
38.2
19.8
31
Rib stop
24
15.7
26.2
Oxford
26.8
20.7
27.7
Plain
21
11.4
23.9
3/1 LHT
29
16.2
28.4
Zigzag twill
28.4
14.5
28.2
Bedford cord
34.4
20
29.8
2/1 RHT
26.8
12
27.3
Ottoman
25
21.9
27.3
Fig: Cover factor chart of different types of woven fabric
Founder & Editor of Textile Learner. He is a Textile Consultant, Blogger & Entrepreneur. He is working as a textile consultant in several local and international companies. He is also a contributor of Wikipedia.
Nice work.