© Copyright Managed Services Providers Incident Response Team
Covering a yarn can also be in order to hide something. This is most often the case when covering fine wires. The yarn that is wrapped around gives the looks whereas the core (the fine wire) still provides the functionality (like conductivity).
Single covered yarns are yarns where a second yarn is wrapped around a core yarn.
Double covered yarns are yarns where two separate yarns are wrapped around a core yarn.The second layer of wrapping mainly serves to compensate the twist direction of the first layer.
With air covered yarns, the outer yarn is intermingled around the core yarn.A non-elastic multilfilament yarn can for example be intermingled with an elasthane yarn that is in the core. This construction can be of help in certain embroidery applications.
In the example of Elasthane, a non elastic yarn gets wrapped around a twisted elasthane yarn. The elasthane is thus fully covered by the non elastic yarn which leads the yarn as a whole to have the look as well as the haptics of the non elastic yarn. However, the perks of elasthane are still to be noticed when wearing a fabric that is made out of such a core spun yarn by a much higher wear comfort for example.
The Wall