Methods of Winding

There are three methods of winding

1. Parallel Winding
2. Non Parallel Winding
3. Cross Winding

Parallel Winding Package

In this type of winding the yarn is wound parallel to each other on package containing flanges on both sides. This type of winding does not require traversing guide.

Advantages of parallel winding

·      many yarns can be wound at the same time

·      no need of traversing guide

·      no change in yarn twist occurs

·      the package is stable

·      side withdrawal is possible

Disadvantages of parallel winding

• flanges are required
• separate mechanism is required to unwind the yarn
• over withdrawal is not possible

example: beam, flange

Non parallel Winding Package

This package contains one or more threads which are laid very nearly parallel to the layers already existing on the package.

Advantage of non parallel winding

• flanges are not required
• over withdrawal is possible
• no change in yarn twist occurs

Disadvantages of non parallel winding

• side withdrawal is not possible
• the package is not stable
• traversing machine is required

example: cop

Cross Winding Package

This type of package contains a single thread which is laid on the package at an appreciable helix angle so that the layers cross one another to give stability.

Advantages of cross winding

• flange is not required
• yarn package is very stable
• over withdrawal is possible

Disadvantage of cross winding

• the yarn twist is changed during this winding
• traversing mechanism is required

Precision Winding

By precision winding successive coils of yarn are laid close together in a parallel or near parallel manner. By this process it is possible to produce very dense package with maximum amount of yarn stored in a given volume.

Features

• Package are wound with a reciprocating traverse
• Patterning and rubbing causes damage of packages
• Package contains more yarn
• Package is less stable
• The package is hard and compact
• The package is dense
• Rate of unwinding of package is low and the process of unwinding is hard
• The unwound coil is arranged in a  parallel or near parallel manner

Non Precision Winding

By this type of winding the package is formed by a single thread which is laid on the package at appreciable helix angle so that the layers cross one another and give stability to the package. The packages formed by this type of winding are less dense but is more stable.

Features

• Only one coil is used to make this packages
• Cross winding technique is used
• The package density is low
• Minimum number of yarn is wound
• The package formed is soft and less compact
• The stability is high
• Flanges are not required
• The rate of unwinding is high and the process is easy
• The packages formed have low density