The Difference between Precision Winding and Non Precision Winding

The process transferring yarn from one spinning bobbin to another suitable package is called as winding. According to the density of the package, winding is classified into precision winding and non precision winding.

Precision winding: Precision winding is the process that produces a very dense package in which maximum amount of yarn is stored in a definite volume when the successive coils of yarn on a package and laid close together and parallel or nearly parallel with each other.

Characteristics of precision winding: Precision winding has a lot of characteristics.
1.Reciprocating motion is used for wounding the package.
2.Patterning or robbing may damage package.
3.It contains more yarn.
4.It has low stability.
5.It is hard and more compact.
6.Flange may be needed.
7.Packages are dense.
8.Unwinding process rate is low and process is harder.
9.The wound coil is parallel or nearly parallel.

Non precision winding: The package consisting of single thread which is laid on the package at appreciable helix angle and creating large cross one another, definite stability and a less dense package.

Characteristics of non precision winding: Non precision winding produce low density package. The followings are the characteristics of non precision winding:
1.Only one coil is used.
2.Storing minimum yarn.
3.Cross angle carries out winding.
4.Package is soft and less compact.
5.Having high stability.
6.Low density package.
7.Flanged is unnecessary.
8.Unwilling rate is high and process is easier.

Difference between precision winding and non precision winding

Precision winding	Non precision winding
The wound coil is arranged parallel or near parallel.	The coil is cross wise wound.
The density of the package is high.	The density of the package is low.
The stability of package is low.	The stability of the package is high.
The unwilling rate is low and process is harder.	The unwilling rate is high and process is easier.
The yarn package is hard and more compact	The yarn package is soft and less compact.
The flanged package may be used.	The package is not necessary to be flanged.
Difficult to dye, surface of the yarn is dyed properly.	Easy to dye
Process is less hairy.	Process is more hairy.

After winding, warping and sizing are used to create a weavers beam.